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  • 1985-1989  (83)
  • 1980-1984  (427,465)
  • 1975-1979  (183,563)
  • 1925-1929
  • 1984  (220,299)
  • 1983  (207,234)
  • 1979  (183,563)
Collection
Years
Year
  • 1
    Monograph available for loan
    Monograph available for loan
    Cambridge, Mass : MIT Press
    Call number: IASS 16.90011
    Type of Medium: Monograph available for loan
    Edition: Online-Ausg.
    ISBN: 0585374848 (electronic bk.) , 9780585374840 (electronic bk.) , 0262530457 (print)
    Parallel Title: Print version Macroeconomics after Keynes
    Language: English
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  • 2
    Monograph available for loan
    Monograph available for loan
    Madrid : Cartografía Española, S.A.
    Call number: MOP A2 17-91141
    Type of Medium: Monograph available for loan
    Pages: 43 Bl , überw. Kt , 43 x 54 cm
    ISBN: 845009495X
    Language: Spanish
    Note: In span. Sprache
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 3
    Call number: M 16.90217
    Type of Medium: Monograph available for loan
    Pages: 144 S. , graph. Darst.
    Language: German
    Note: Kiel, Univ., Diss., 1984.
    Location: Upper compact magazine
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  • 4
    Monograph available for loan
    Monograph available for loan
    Jakutsk : Inst. Merzlotovedenija
    Call number: AWI G3-16-90233
    Type of Medium: Monograph available for loan
    Pages: 164 S.
    Language: Russian
    Note: In kyrill. Schr.
    Location: AWI Reading room
    Branch Library: AWI Library
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  • 5
    Monograph available for loan
    Monograph available for loan
    Novosibirsk : Izd. Nauka
    Call number: AWI G3-16-90240
    Type of Medium: Monograph available for loan
    Pages: 135 S. , Ill., graph. Darst.
    Language: Russian
    Note: In kyrill. Schr.
    Location: AWI Reading room
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  • 6
    Call number: ZSP-980-89 ; ZSP-980-89(2. Ex.)
    In: ZfI-Mitteilungen ; 89, Nr. 89
    Type of Medium: Series available for loan
    Pages: 132 S. , Ill., graph. Darst., Kt.
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 89
    Language: English
    Note: Contents: Preface. - Tritium in Antarctic precipitation - information on global distribution / D. Hebert. - On the physical geography of the Schirmacher Oasis (East Antarctica, Dronning Maud Land) / W. Richter. - Investigation of Deuterium concentration relations between atmospheric water vapour and precipitations in the Schirmacher Oasis, East Antarctica / P. Kowski. - Isotope-hydrological and hydrochemical characterization of lakes in the Schirmacher Oasis (East Antarctica) / W. Richter, U. Wand, G. Strauch, P. Kowski, W. Kurze. - Isotope-hydrological and hydrochemical studies of the interior Antarctic lake "Untersee" in the Wohlthat Massif, Dronning Maud Land, East Antarctica / W.-D. Hermichen, M. Crelle, P. Kowski, W. Kurze, U. Wand. - The isotope-glaciological situation in the surroundings of the Schirmacher Oasis/Dronning Maud Land - a first overview / W.-D. Hermichen, P. Kowski, G. Strauch. - Radiocarbon dating of breeding places of petrels in the Antarctic / A. Hiller, U. Wand. - K - Ar dating of basalt dykes in the Schirmacher Oasis, Dronning Maud Land, East Antarctica / G. Kaiser, U. Wand.
    Location: AWI Archive
    Location: AWI Archive
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    Branch Library: AWI Library
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  • 7
    Series available for loan
    Series available for loan
    Leipzig : Dt. Verl. für Grundstoffindustrie
    Associated volumes
    Call number: SR 99.0015(391)
    In: Beiträge zur allgemeinen und speziellen Paläontologie, Teil III
    In: Freiberger Forschungshefte : Reihe C, Geowissenschaften, Paläontologie, 391
    Type of Medium: Series available for loan
    Pages: 94 S. , Ill., graph. Darst.
    Edition: 1. Aufl.
    ISSN: 0071-9404
    Series Statement: Freiberger Forschungshefte : Reihe C, Geowissenschaften, Paläontologie 391
    Language: German
    Note: Inhaltsverzeichnis: Annotation. - Autorenverzeichnis. - Die Blattodea (Insecta) des Paläozoikums, Teil II: Morphogenese der Flügelstrukturen und Phylogenie / Jörg Schneider. - Zur Taxonomie und Biostratigraphie der Conchostraca (Phyllopoda, Crustacea) des Rotliegenden (oberes Karbon bis Perm) im Saar-Nahe-Gebiet (BRD) / Thomas Martens. - Zur Ichnologie der Arthropoda / Harald Walter.
    Location: Lower compact magazine
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  • 8
    Monograph available for loan
    Monograph available for loan
    Berlin : Zentralinstitut für Physik der Erde
    Call number: AWI G2-19-92036
    Type of Medium: Monograph available for loan
    Pages: 78 Seiten , Illustrationen
    Language: German
    Note: Inhaltsverzeichnis: 1. Vorwort. - 2. Struktur und Entwicklung der Antarktischen Platte. - 2.1. Generelle Kennzeichnung der Antarktischen Platte. - 2.2. Tripelpunkte. - 2.2.1. Bouvet-Tripelpunkt. - 2.2.2. Indik-Tripelpunkt. - 2.2.3. Macquarie-Tripelpunkt. - 2.2.4. Osterinsel-Tripelpunkt. - 2.3. Plattengrenzen und Plattenfelder. - 2.3.1. Bouvet-Indik-Feld. - 2.3.1.1. Ausbildung der Plattengrenze. - 2.3.1.2. Anomale Entwicklung südlich der Agulhas-Bruchzone. - 2.3.1.3. Inseln und submarine Plateaus im südlichen Indik. - 2.3.2. Indik-Macquarie-Feld. - 2.3.3. Macquarie-Osterinsel-Feld. - 2.3.3.1. Ausbildung der Plattengrenze. - 2.3.3.2. Sandwich- und Scotia-Platte. - 2.3.4.3. Beziehungen zwischen Südamerika und Antarktika und das Problem der Antarktischen Halbinsel. - 2.3.4.4. Weddellbecken. - 2.3.4.5. "Drake-Platte". - 2.3.4.6. Plattentektonische Entwicklung des Südostpazifiks. - 2.4. Überblick über den Werdegang der südhemisphärischen Ozeangebiete und den Ablauf des Gondwanazerfalls. - 3. Zur Bedeutung der Krustenentwicklung für Paläoozeanlogie und Paläoklimatologie. - 3.1. Einige Kennzeichen der ozeanologischen Situation in den antarktischen Meeresgebieten. - 3.2. Kriterien für Veränderungen der paläoozeanologischen und paläoklimatologischen Verhältnisse im Hinblick auf die paläotektonische Interpretation. - 3.3. Abriß der paläoozeanologisch-paläoklimatologischen Entwicklung im Känozoikum und mögliche Zusammenhänge mit dem tektonischen Geschehen. - 4. Zusammenfassung. - 5. Literaturverzeichnis. - 6. Abbildungsverzeichnis. -
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  • 9
    Call number: M 17.90769
    Type of Medium: Monograph available for loan
    Pages: vii, 437 Seiten , Illustrationen, graphische Darstellungen, Karten
    Series Statement: Maurice Ewing series 3
    Language: English
    Note: [Teil 1]Ocean crust.. , [Teil 2]Continental margins and paleoenvironment..
    Location: Upper compact magazine
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  • 10
    Series available for loan
    Series available for loan
    Leipzig : Akademie der Wissenschaften der DDR, Zentralinstitut für Isotopen- und Strahlenforschung
    Associated volumes
    Call number: ZSP-980-90
    In: ZfI-Mitteilungen, Nr. 90
    Type of Medium: Series available for loan
    Pages: 358 Seiten , Illustrationen
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 90
    Language: German
    Note: Inhaltsverzeichnis: 1. Wissenschaftliche Beiträge. - (01) Isotopen- und elementgeochemische sowie radiogeochronologische Untersuchungen an der Zinnlagerstätte Ehrenfriedersdorf (Beste wissenschaftliche Arbeit des ZfI 1983 / Autorenkollektiv. - (02) Einsatz ionisationsgasanalytischer Methoden an der Mikroelektronik (Beste wissenschaftlich-technische Arbeit des ZfI 1983) / Autorenkollektiv. - (03) Zur Geschichte der künstlichen Radioaktivität / H. Koch. - (04) 50 Jahre künstliche Radioaktivität / G. Vormum. - (05) Frédéric und Irène Joliot-Curie - Biographische Skizze / K.-P- Dostal. - 2. Institutskolloquien. - 3. Patente. - 4. Veröffentlichungen und Vorträge. - 5. Register. - 5.1. Namensregister. - 5.2. Deskriptorenregister. - 6. Verzeichnis aller bisher erschienenen Hefte der ZfI-Mitteilungen. - 6.1. Titel der bis 1982 erschienenen Hefte 1-61 und Sonder-Nr. 1. - 6.2. Inhaltsverzeichnisse der im Jahre 1983 erschienenen Hefte 62-82. - 6.3. 1984 bisher erschienene Hefte. - 7. Verzeichnis aller bisher erschienenen Preprints.
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  • 11
    Series available for loan
    Series available for loan
    Leipzig : Akademie der Wissenschaften der DDR, Zentralinstitut für Isotopen- und Strahlenforschung
    Associated volumes
    Call number: ZSP-980-95
    In: ZfI-Mitteilungen, Nr. 95
    Type of Medium: Series available for loan
    Pages: VI, 150 Seiten , Illustrationen
    Series Statement: ZfI-Mitteilungen 95
    Language: German
    Note: Inhaltsverzeichnis: 1. Einleitung. - 1.1. Ausgangssituation. - 1.2. Bestrahlungsanlagen als Basis strahlenchemischer Untersuchungen und Verfahren. - 1.3. Anforderungen der Praxis an ein Programmsystem zur Berechnung von Strahlenfeldern in γ-Bestrahlungsanlagen. - 2. Ableitung des Grundmodells. - 2.1. Ausgangspunkt. - 2.1.1. Punktförmige Strahlenquelle. - 2.1.2. Linienförmige Strahlenquelle. - 2.1.3. Anordnung mehrerer Strahlenquellen. - 2.2. Zugrundegelegte Struktur von Bestrahlungsanlage und Strahlenfeld. - 2.3. Geometrische Zusammenhänge. - 2.4. Berechnung der Bestrahlungsdosisleistung in einem Feldpunkt. - 3. Das Programm DOSKMF2. - 3.1. Übersicht. - 3.2. Eingabe. - 3.3. Aktivitätskorrektur. - 3.4. Auswahl der Feldpunkte. - 3.4.1. Zylinderkoordinaten. - 3.4.2. Quaderkoordinaten. - 3.4.3. Auswahl von Einzelpunkten. - 3.4.4. Variation der Rohrpositionen 3.5. Zyklusgestaltung, statistische Maßzahlen und Aufbereitung für graphische Ausgabe. - 3.5.1. Zylinderkoordinaten. - 3.5.2 Quaderkoordinaten. - 3.6. Programmtechnische Lösung. - 3.6.1. Struktur des Programms. - 3.6.2. Aufruf. - 3.6.3. Einschränkungen und programmtechnische Hinweise. - 3.7. Ein Demonstrationsbeispiel. - 3.7.1. Aufgabenstellung. - 3.7.2. Festlegung der Parameter. - 3.7.3. Resultate. - 4. Nutzung der graphischen Ausgabe. - 4.1. Ausgangspunkt und Voraussetzungen. - 4.2. Das Programm ISORADL. - 4.2.1. Übersicht. - 4.2.2. Die Programme ISOQ, ISOA. - 4.2.3. Problemlösung. - 4.2.4. Programmtechnische Lösung. - 4.2.5. Demonstrationsbeispiel. - 5. Einsatzmöglichkeiten des Programmpaketes. - 5.1. Übersicht. - 5.2. Prüfen von Voraussetzungen. - 5.3. Wechselwirkung Programmpaket-Realität. - 6. Berechnung und Modifikation von Strahlenfeldern bestehender Gammabestrahlungsanlagen. - 6.1. Technische Voraussetzungen. - 6.2. Prüfen der Anwendungsbedingungen für den Programmeinsatz. - 6.3. Durchgeführte Berechnungen. - 6.3.1. Aufklärung der Struktur des vorliegenden Strahlenfeldes. - 6.3.2. Darstellung typischer Bestrahlungskonfigurationen. - 6.3.2.1. Bestrahlung im Käfig. - 6.3.2.2. Bestrahlung flächenartiger Objekte. - 6.4. Berechnungen für eine neue Strahlenquellenkonfiguration. - 6.5. Schlußfolgerungen. - 7. Einsatz des Programmpaketes als Projektierungshilfsmittel. - 7.1. Nutzung für die Pilotanlage des PCK Bitterfeld. - 7.1.1. Vorbemerkungen. - 7.1.2. Berechnungen für Modellreaktoren. - 7.1.3. Auslegung eines Reaktors für die Pilotanlage. - 7.1.4. Kontrollrechnungen zur Dosimetrie des gefertigten Reaktors. - 7.2. Nutzung für eine industrielle Anlage des VEB PROWIKO Schönebeck. - 7.2.1. Vorbemerkungen. - 7.2.2. Entwurf eines Modellreaktors. - 7.2.3. Schlußfolgerungen für den Entwurf einer industriellen Anlage. - 8. Einige Gedanken zur Wechselwirkung Strahlenfeldberechnung - Dosimetrie am Beispiel zweier umschlossener γ-Bestrahlungsanlagen. - 8.1. Vorbemerkungen. - 8.2. Beschreibung der für den Vergleich wesentlichen Anlagenparameter. - 8.3. Durchgeführte dosimetrische Messungen. - 8.4. Durchgeführte Strahlenfeldberechnungen. - 8.5. Diskussion der Ergebnisse. - 9. Erweiterte Nutzungsmöglichkeiten und Ausblick. - 10. Zusammenfassung. - Literaturverzeichnis. - Verzeichnis der Abbildungen. - Verzeichnis der Tabellen.
    Location: AWI Archive
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  • 12
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/6
    In: CRREL Report, 83-6
    Description / Table of Contents: During the austral summers of 1976-77 and 1978-79, several ice cores were taken from the McMurdo Ice Shelf brine zone to investigate its thermal, physical and chemical properties. This brine zone consists of a series of super-imposed brine layers (waves) that originate at the seaward edge of the ice shelf and migrate at various rates, depending upon their age and position in the ice shelf. The brine in these layers becomes increasingly concentrated as the waves migrate inland through the permeable ice shelf firn. Chemical analyses of brine samples from the youngest (uppermost) brine wave show that it contains sea salts in normal seawater proportions. Further inland, deeper and older brine layers, though highly saline (S 〉 200 ‰), are severely depleted in SO2-4 with the SO2-4/Na+ ratio being an order of magnitude less than that of normal seawater. Analyses of Na+, K+, Ca2+, Mg2+, SO2-4 and CI-, together with solubility and temperature considerations, show that the sulfate depletion is due to selective precipitation of mirabilite, Na2SO4*10H2O. The location of the inland boundary of brine penetration is closely related to the depth at which the brine en-counters the firn/ice transition. However, a small but measurable migration of brine is still occurring in otherwise impermeable ice; this is attributed to eutectic dissolution of the ice by concentrated brine as it moves into deeper and warmer parts of the McMurdo Ice Shelf.
    Type of Medium: Series available for loan
    Pages: iii, 16 Seiten , Illustrationen
    Series Statement: CRREL Report 83-6
    Language: English
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  • 13
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/4
    In: CRREL Report, 83-4
    Description / Table of Contents: Measurements and analysis of seasonal ice growth and decay on Post Pond, New Hampshire, for the period 1973-1982 are presented. Observations included ice thickness measurements, examination of the various ice types contributing to the ice cover, and measurements of meteorological parameters for correlation with and modeling of the ice growth process. The overall nature of ice growth and decay (ice loss) on the Post Pond has been ascertained, the seasonal variability in the timing of freeze-up and ice-out and the duration of the ice cover have been determined, and the relationship of ice growth to freezing-degree-day (deg C) records evaluated on the basis of a Stefan conduction equation modified to deal with ice sheets covered with or free of snow. Ice growth occurs predominantly by the direct freezing of lake water, but snow ice may compose as much as 50% of the ice cover in winters with higher than average snowfall. Freeze-up leading to the establishment of a stable ice cover occurs during the 4-week period from the end of November to the end of December. Maximum seasonal ice thicknesses were from 45 to 67 cm and are generally attained during the first two weeks of March; ice-out, marking the final disappearance of ice from Post Pond, usually occurs by the third week of April. The overall rate of the ice loss is three to four times that of ice growth, and is dominated initially by melting from the top. As much as 50% of the ice may be lost in this way before the onset of any bottom melting. Final dissipation of the ice cover is usually expedited by candling resulting from preferential melting and disintegration of the ice at crystal boundaries.
    Type of Medium: Series available for loan
    Pages: iv, 30 Seiten , Illustrationen
    Series Statement: CRREL Report 83-4
    Language: English
    Note: CONTENTS Abstract Preface Introduction Location of study Study methods Ice thickness Ice-cover composition Surface air temperatures Freeze-up and ice-out characteristics Results and discussion Ice-growth record Freezing-degree-day records Ice-growth predictions Summary and conclusions Literature cited Appendix A: Ice-growth records Appendix B: Measured and computed ice-growth curves
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  • 14
    Call number: ZSP-201-83/7
    In: CRREL Report, 83-7
    Description / Table of Contents: Peak power generation with hydropower creates tailwater flow conditions characterized by high and low flows with abrupt transitions between these states. Flows occurring in tailwaters typically form sharp-fronted, large-amplitude waves of relatively short period. An understanding of the mechanics of downstream propagation of these waves is important both for direct application in studies of the tailwater and because of the similarity of these waves to those following a dam break. An analysis of the dynamic equations of open channel flow is used to quantify the relative importance of flow wave convection, diffusion and dispersion in rivers. The relative importance of each process is re­lated to the relative magnitude of terms in the dynamic equations, providing a physical basis for model formulation. A one-dimensional diffusion wave flow routing model, modified for tailwaters, simulates the important physical pro­cesses affecting the flow and is straightforward to apply. The model is based upon a numerical solution of the kine­matic wave equation. The “modified equation,” Hirt, and von Neumann analyses are used to gain insight into the stability and dissipative and dispersive behavior of the numerical solution, and results of these analyses are compared. A set of linear routings is used to demonstrate the dissipative and dispersive behavior predicted by the analyses and to verify the accuracy of an expression that quantifies the numerical diffusion of the model. The analyses provide a basis for selection of numerical parameters for model applications. The capability and accuracy of the model are enhanced when physical wave diffusion is balanced by numerical diffusion in the model. Maintaining the diffusion balance re­quires that the time derivative weighting parameter 0 be variable and in some instances negative. Though some amount of phase error is introduced, negative 0 values have no adverse effect upon model stability. Field studies were con­ducted to demonstrate the benefits of careful model development and analysis, and to verify the diffusion wave model for rapidly varying tailwater flow. The bed slope and roughness characteristics of the field study reaches (below Apalachia and Norris Dams) differ greatly, spanning those of a large number of rivers of practical interest. The accurate simulation of flow in both of these tailwaters attests to the soundness of both the physical basis of the model and the numerical solution technique. The field studies confirm, for the extreme case of rapidly varying flow in a mildly sloped river, that inertia has a negligible effect upon unsteady flow waves at low Froude numbers. Additionally, these studies verify that diffusion of short-period waves in rivers is generally significant.
    Type of Medium: Series available for loan
    Pages: vi, 41 Seiten , Illustrationen
    Series Statement: CRREL Report 83-7
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Physical diffusion and dispersion in open channel flow Modeling approach Description of the diffusion wave flow routing model Analysis of the numerical model Modified equation and Hirt analyses of diffusion wave model von Neumann analysis of the diffusion wave model Linear case studies Accuracy considerations of the numerical solution Field studies Apalachia Dam tailwater Norris Dam tailwater Conclusions Literature cited
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  • 15
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/5
    In: CRREL Report, 83-5
    Description / Table of Contents: This report presents the results of dynamic ice-structure interaction model tests conducted at the CRREL Ice Engineering Facility. A flexible, single-pile, bottom-founded offshore structure was simulated by a test pile with about a one-to-ten scale ratio. Urea (instead of sodium chloride) was used as dopant to scale down the ice properties, resulting in good model ice properties. Six ice fields were frozen and 18 tests carried out. In all cases distinctive dynamic ice structure interaction vibrations appeared, from which abundant data were collected. In tests with linear ice velocity sweep, sawtooth-shaped ice force fluctuations occurred first. With increasing velocity the natural modes of the test pile were excited, and shifts from one mode to another occurred. The maximum ice force values appeared mostly with low loading rates, but high forces appeared random'y at high ice velocities. As a general trend, ice force maximums, averages and standard deviations decreased with increasing ice velocities. The aspect ratio effect of the ice force in continuous crushing follows the same dependence as in static loadings. The frequency of observed ice forces is strongly dominated by the natural modes of the structure. Dynamically unstable natural modes tend to make the developing ice force frequencies the same as the natural frequencies. Otherwise the resulting frequency depends directly on structural stiffness and ice velocity and inversely on the ice force range. During vibrations the displacement rates of the structure overcome the velocity of ice, making low loading rates and hence high ice forces possible. During crushing, ice induces both positive and negative damping.
    Type of Medium: Series available for loan
    Pages: iv, 53 Seiten , Illustrationen
    Series Statement: CRREL Report 83-5
    Language: English
    Note: CONTENTS Abstract Preface Introduction Test arrangements Ice properties Crushing patterns Maximum ice force vs velocity Dynamic aspect ratio effect and crushing strength Measured ice force frequencies Calculated ice force frequencies Accelerations, velocities and displacements Damping Ice-induced negative damping Limit cycles Buckling load Conclusions Literature cited
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  • 16
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/2
    In: CRREL Report, 83-2
    Description / Table of Contents: A numerical model of rime ice accretion on an arbitrary two-dimensional airfoil is presented. The physics of the model are described and results are presented that demonstrate, by comparison with other theoretical data and experimental data, that the model predictions are believable. Results are also presented that illustrate the capability of the model to handle time-dependent rime ice accretion, taking into account the feedback between the ice accretion and the airflow and droplet trajectory fields.
    Type of Medium: Series available for loan
    Pages: vi, 81 Seiten , Illustrationen
    Series Statement: CRREL Report 83-2
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Methodology Potential flow around an arbitrary airfoil Incompressible velocity field Droplet trajectory equation Computational procedure for trajectories Determining the point of impact Calculation of collision efficiencies Accreting an ice layer Determining the accuracy of the flow field Determining the accuracy of the trajectories Results and discussion Comparing results with and without the history term Collision efficiency of NACA 0015 airfoil at 8° attack angle Time-dependent accretion on NACA 0015 airfoil at 8° attack angle Time-dependent accretion on NACA 0015 airfoil at 0° attack angle Conclusions and recommendations Literature cited Appendix A : Sample input Appendix B: Sample output Appendix C : Program listing
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  • 17
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/1
    In: CRREL Report, 83-1
    Description / Table of Contents: Roof snow load case studies gathered throughout the United States over a three-year period are analyzed. The objective of the analysis is to determine a relationship between the snow load on the ground and the corresponding uniform snow load on flat and sloped roofs. The main parameters considered are the thermal characteristics of the roof, the roof slope and the exposure of the structure. Exposure has the strongest effect on the ratio of ground to roof snow loads. Comparisons are made with existing and proposed building codes and standards.
    Type of Medium: Series available for loan
    Pages: iv, 47 Seiten , Illustrationen
    Series Statement: CRREL Report 83-1
    Language: English
    Note: CONTENTS Abstract Preface Metric conversion table Introduction Data base Conversion factor Ground load effects Exposure effects Thermal effects Slope effects Expected value relationship Comparison with existing codes and standards Comparison with relationships proposed in new ANSI standard Summary and conclusions Literature cited Appendix A. Roof snow load case history reports Appendix B. Roofs in the snow load case study data base Appendix C. Ground and roof snow load data Appendix D. Conversion factors from the 1982 ANSI standard
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  • 18
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/17
    In: CRREL Report, 84-17
    Description / Table of Contents: VHF-band radiowave short pulses were transmitted within the permafrost tunnel at Fox, Alaska, over distances between 2.2 and 10.5 m. The propagation medium was a frozen silt containing both disseminated and massive ice with temperatures varying from -7°C near the transmitter to probably -2 C near the center of the tunnel overburden. The short pulses underwent practically no dispersion in the coldest zones but did disperse and refract through the warmer overburden, as suggested by calculations of the effective dielectric constant. Most significantly the measured frequency content decreased as the effective dielectric constant increased. The results indicate that deep, cross-borehole pulse transmissions over distances greater than 10 m might be possible, especially when the ground is no warmer than -4°C. The information thus pined could be used for identifying major subsurface variations, including ground ice features.
    Type of Medium: Series available for loan
    Pages: ii, 14 Seiten , Illustrationen
    Series Statement: CRREL Report 84-17
    Language: English
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  • 19
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/18
    In: CRREL Report, 84-18
    Description / Table of Contents: This report investigates the influences of turbulence and water temperature on frazil ice formation. The rate and thequantity of frazil ice formed in a specified volume of supercooled water increase with both increasing turbulence inten-sitv and decreasing water temperature. The influence of turbulence intensity on the rate of frazil ice formation, how-ever. is more pronounced for larger initial supercooling. The turbulence characteristics of a flow affect the rate offrazil ice formation by governing the temperature to which the flow can be supercooled, by influencing heat transferfrom the frazil ice to surrounding water, and by promoting collision nucleation, particle and floc rupture and increasingthe number of nucleation sites. larger frazil ice particles formed in water supercooled to lower temperatures. The par-ticles usually were disks, with diameters several orders greater than their thickness. Particle size generally decreased with increasing turbulence intensity. This report develops an analytical model, in which the rate of frazil ice formation isrelated to temperature rise of a turbulent volume of water from the release of latent heat of fusion of liquid water toice. Experiments conducted in a turbulence jar with a heated, vertically oscillating grid served both to guide and tocalibrate thanalytical'model as well as to afford insights into frazil ice formation. The formation of frazil ice wasstudied for Vemperatures of supercooled water ranging from -0.9° to -0.050°C.
    Type of Medium: Series available for loan
    Pages: vi, 50 Seiten , Illustrationen
    Series Statement: CRREL Report 84-18
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Background Scope of study Literature review Introduction Incipient formation of frazil ice Particle size and evolution of frazil ice Influences of turbulence and water temperature on the rate of frazil ice formation Conclusions Analytical model Introduction Elements of heat transfer Elements of turbulence Experimentation Experimental apparatus Experimental procedure Results Introduction Nucleation of frazil ice Influences of turbulence on frazil ice formation Water temperature Influences of water temperature and turbulence on the concentration of frazil ice Frazil ice particle shape and size Conclusions Literature cited Appendix A: Preliminary frazil ice experiments Flume experiments Couette-flow Appendix B: Listing of computer program for calculation of frazil ice formation Appendix C: Water temperature rise attributable to frazil ice formation as computed usingthe analytical model .
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  • 20
    Series available for loan
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/15
    In: CRREL Report, 84-15
    Description / Table of Contents: Measurements of meltwater pH from annual layers of South Pole firn and ice samples ranging in age from 40 to 2000 years B.P. show that precipitation at this remote site has a higher natural acidity than that expected from atmospheric equilibrium with CO2. The average pH of deaerated (CO2-free) samples was 5.64 + or - 0.08, while air-equilibrated samples averaged 5.37 + or - 0.008, a pH that is about a factor of two more acidic than the expected background pH of 5.65. The observed 'excess' acidity can be accounted for by natural SO4(2)- and NO(3)- levels in the samples probably originating from non-anthropogenic H2SO4 and HNO3. Because of the presence of these naturally occurring acids in South Pole precipitation, a pH of 5.4 is considered a more representative baseline reference pH for acid precipitation studies.
    Type of Medium: Series available for loan
    Pages: ii, 12 Seiten , Illustrationen
    Series Statement: CRREL Report 84-15
    Language: English
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  • 21
    Call number: 12023/2
    In: Proceedings / Fourth International Congress on Rock Mechanics, Vol. 2
    Type of Medium: Monograph available for loan
    Pages: XXXVI, 727 S. , Ill., graph. Darst.
    ISBN: 906191048X
    Language: English , French , German
    Note: Contents: THEME II USE OF TESTS AND MONITORING IN THE DESIGN AND CONSTRUCTION OF ROCK STRUCTURES = UTILISATION DES ESSAIS ET DES AUSCULTATIONS DANS LA CONCEPTION ET L'EXÉCUTION D'OUVRAGES EN ROCHER = VERWENDUNG VON VERSUCHEN UND KONTROLLMESSUNGEN IM ZUSAMMENHANG MIT DEM ENTWURF UND DER ERRICHTUNG VON FELSBAUTEN. - Plateloading tests on multi-layed sedimentary rocks = Tests de surcharge de roches sédimentaires à multi-strates = Plattenladungsversuche von geschichteten Sedimentgesteinen / K. Akai, Y. Onishi, K. Takahashi. - Verhalten von vorfabrizierten Tunnelauskleidungen beim Schildvortrieb = Behaviour of the prefabricated lining in shield driven tunnels = Le comportement du revêtement préfabriqué d'un tunnel pendant l'avancement au moyen d'un bouclier / E. Andráskay, R. Attinger. - Arch formation and pillar yield in jointed rock = Formation de voûte et déformation des piliers dans une roche disjointe = Gewölbebildung und Pfeilerleistung bei abgesondertem Gestein / J. R. Barrett, B. Grumitt, M. Wical. - A new approach to the evaluation of the strength of concrete construction contact with the rocky foundation = Une nouvelle approche à l'estimation de la résistance du contact d'une construction en béton avec la fondation en roche = Neuer Standpunkt zur Berechnung von Festigkeit des Kontaktes zwischen Betonbauwerk und Felsfundamentsohle / J. A. Baslavsky, S. A. Frid. - Die Erstellung eines Pilotstollens sowie felsmechanische Untersuchungen als Grundlage für die Projektierung und den Bau des Du Toitskloof Tunnels in Südafrika = Execution of a pilot tunnel and rock mechanics investigations as a base for design and construction of the Toitskloof Tunnel in South Africa = Exécution d'une galerie de sondage et mesure des caractéristiques méchaniques des roches comme bases de la conception et de la construction du tunnel du Toitskloof, Afrique du Sud / P. C. Bebi, K. R. Mettier. - Classement statistique de mesures sismiques et conception de barrages = Statistical classification of seismic measures and dam design = Statistische Klassifizierung des seismischen Mass und Konzeption eines Staudammes / Y. Bertrand, J. Lakshmanan, J. Rouge. - The geomechanics classification in rock engineering applications = Classification géoméchanique et son application pour l'ingénieur des roches = Geomechanische Gebirgsklassifizierung und ihre Anwendung im Felsbau / Z. T. Bieniawski. - Comparison of calculated, measured and observed stresses at the Ortfjell Open Pit (Norway) = Une comparaison sur des constraintes calculées, mesurées et observées dans l'Ortfjell fosse (Norvège) = Vergleich zwischen berechneten, gemessenen und observierten Spannungen im Ortfjell Tagebau (Norwegen) / E. Broch, B. Nilsen. - Discontinuity measurement using the borehole impression probe - a case study = Mesure des discontinuités par l'emploi du "Borehole Impression Probe" = Unregelmässigkeitsmessungen unter Verwendung der Bohrloch-Eindrucksonde - eine Fallstudie / E. T. Brown, T. R. Harper, D. V. Hinds. - Strain softening marly rock = Roche marneuse à rupture progressive = Mergelstein mit progressivem Bruch / S. Cavounidis, E. Sotiropoulos. - A modified form of aquifer depletion/recovery test for assessing potential water makes into deep excavations = Modification de l'essai Lefranc pour estimer les venues d'eau dans les fouilles profondes exécutées dans l'aquifère = Abwandlung des Pump-Versuchs zur Ermittlung möglicher Wassereinbrüche in tiefen Baugruben / A. Chalmers, G. P. Daw, R. A. Scott. - Dilatometer tests in the study of the deformability of rock masses = Les essais au dilatomètre dans l'étude de la déformabilité des massifs rocheux = Dilatometerversuche zur Bestimmung der Gebirgsverformbarkeit / J. G. Charrua-Graça. - Auscultation fine d'un glissement de terrain a l'aide d'instruments nouveaux = Precise monitoring of a landslide by means of new devices = Feinbeobachtungen an einer Rutschung mittels neuartiger Instrumente / P. J. Debreuille, J. B. Francq, P. Londe. - Etude sur les caracteristiques de la roche pour un barrage d'enrochement = Study of rock characteristic for a rockfill dam = Untersuchungen der Eigenschaften des Gesteins für einen Staudamm / R. Del Hoyo Fernandez-Gago. - L'identification des roches par l'indice de continuite = Rock identification by means of continuity index = Gesteinsidentifizierung mittels Kontinuitätsindex / A. Denis, M. Panet, C. Tourenq. - Fracture growth around openings in rock models and their effect on the design of stable openings = Observation sur modèle de la propagation de la fracturation autour des cavités en rocher: impact sur les projets réels = Risswachstum rumd um Felshohlräume im Modell und ihre Auswirkungen auf den Entwurf standsicherer Hohlräume / B. B. Dhar, B. S. Verma, S. Ratan. - Site investigations and FEM calculations for two underground caverns in Peru = Reconnaissance du site et calcul par éléments finis de deuy excavations souterraines au Pérou = Felduntersuchungen und Finite-Elemente-Rechnungen für zwei Kavernen in Peru / M. Dolezalová, K. Drozd. - Analysis of a solid inclusion in situ stress measuring device = Analyse d'un capteur de contraintes in-situ peu déformable = Analyse eines verformungsarmen in-situ-Spannungsmessgebers / M. E. Duncan Fama. - Tunnels ancres a faible profundeur etude comparative sur modeles physique et mathematique = Anchored tunnels with small overburden: comparative study on physical and mathematical models = Verankerte seichtliegende Tunnel: vergleichende Untersuchungen mittels physikalischer und mathematischer Modelle / P. Egger, C. Gindroz. - Allgemeine geotechnische Gesichtspunkte und Grenzgleichgewichtsbetrachtungen als erste Orientierung bei der Planung von Talsperren = General geotechnical considerations and limit equilibrium analysis in the planning of dam foundations = Considérations générale de la géotechnique et l'analyse d'équilibre limite dans l'évaluation de suite au sujet de la construction des barrages / E. Fecker, L. Müller, G. Reik. - Investigations of stress-strain state of structurally disturbed rock massif near underground workings = Etude de l'état de tension et de déformation du massif fragmenté des roches au voisinage des galeries minières = Untersuchung des Spannungs- und Deformationszustandes des strukturgestörten Gesteinmassives in der Nähe von Untertagebaustellen / N. A. Filatov, V. D. Belykov. - Investigations into the mechanism of the failure of concrete dams rock foundations and their stability analysis = Etudes du méchanisme de rupture des fondations rocheuses des barrages en béton et calculs de leur stabilité = Bruchmechanismusuntersuchung von Felsuntergrund der Betonstaumauern und Berechnung deren Standsicherheit / Y. A. Fishman. - Preferred orientation of underground caverns in complicated tectonic zone = Orientation optimale des cavernes souterraines dans une région à tectonique complexe = Bevorzugte Orientierung von Kavernenbauten in einem Gebiet mit komplizierter Tektonik / A. Flexer, I. Larsson, M. Braun, B. Russell, L. C. Greenwood. - Investigations of seepage flow in block media as applied to designing structures on rock = Etudes de l'écoulement de filtration dans un massif fracturé, appliquées au projet d'ouvrages dans le rocher = Untersuchung der Sickerströmung im Felskörper mit Blockgefüge in Anwendung an die Projektierung der Bauwerke im Felsgestein / E. G. Gaziev, T. N. Borovykh, V. I. Rechitski. - Measurement of rock deformation in the abutments of an arch dam = Mesure des déformations d'un massif rocheux formant l'appui d'un barage voûte = Messung der Gebirgsverformungen in den Auflagern einer Bogenmauer / S. Giudici. - Die Fundierung einer exponierten Bogenbrücke = The foundations of an arch bridge in particularly difficult conditions = Les fondations d'un pont arc dans des conditions particulièrement difficiles / J. Golser, H. Brandecker, K. Mussger. - Construction behaviour of a shallow tunnel in highly stressed sedimentary rock = Comportement d'un massif
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  • 22
    Call number: MOP 41424 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 31 Seiten , Illustrationen
    Language: Russian
    Note: In kyrillischer Schrift
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  • 23
    Call number: PIK N 106-19-93045
    Type of Medium: Monograph available for loan
    Pages: XI, 390 Seiten , Diagramme
    Series Statement: Lehrbuch der theoretischen Physik L. D. Landau; E. M. Lifschitz. In dt. Sprache hrsg. von Gerhard Heber ; Bd. 9
    Language: German
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  • 24
    Call number: MOP 46138 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 196 Seiten , Illustrationen , 22 cm
    Language: Russian
    Note: In kyrillischer Schrift
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  • 25
    Monograph available for loan
    Monograph available for loan
    Leningrad : Gidrometeoizdat
    Call number: MOP 45558 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 231 Seiten , Illustrationen , 22 cm
    Language: Russian
    Note: In kyrillischer Schrift
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  • 26
    Monograph available for loan
    Monograph available for loan
    Alma-Ata : Izdatel'stvo "Nauka" Kazachskoj SSR
    Call number: MOP 46038 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 174 Seiten , Illustrationen , 21 cm
    Language: Russian
    Note: In kyrillischer Schrift
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  • 27
    Monograph available for loan
    Monograph available for loan
    Stuttgart : Schweizerbart Science Publishers ; Volume 1, number 1 (1978)-
    Call number: M 18.91571
    Type of Medium: Monograph available for loan
    Pages: 134 Seiten
    ISSN: 2363-7196
    Series Statement: Global tectonics and metallogeny : special issue Vol. 10/2-4
    Classification:
    Tectonics
    Parallel Title: Erscheint auch als Global tectonics and metallogeny
    Language: English
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  • 28
    Series available for loan
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    Associated volumes
    Call number: S 92.0083(1984)
    In: Erdbeben in der Bundesrepublik Deutschland
    Type of Medium: Series available for loan
    Pages: 57 Seiten
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  • 29
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/31
    In: CRREL Report, 83-31
    Description / Table of Contents: A mathematical model is described that is used to determine the maximum ice conveyance capacity of a river channel. Based upon this model, computer programs were developed that enable the ice discharge to be calculated for steady-state flow conditions. For rivers that have uniform flow, the maximum ice-conveying capacity can be described with a simple function expressed in terms of the size of the ice fragments, channel geometry, and the flow of water in the river. For nonuniform flows, the computer program determines the elevation profile of the surface layer in addition to other flow characteristics, such as the velocity and surface concentration of the ice fragments. The location along this surface profile where the ice conveyance capacity becomes less than the upstream supply is determined and is considered to be the position where a surface ice jam or ice bridge will be formed.
    Type of Medium: Series available for loan
    Pages: iv, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 83-31
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Constitutive relationships Equations of motion Uniform flow Nonuniform flow Ice transport: Uniform flow Symmetric channel Asymmetric channel Ice transport: Nonuniform flow Further considerations Basis for model improvement Conclusions Literature cited
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  • 30
    Call number: ZSP-201-83/32
    In: CRREL Report, 83-32
    Description / Table of Contents: Ice forces on a bridge pier in the Ottauquechee River, in Quechee, Vermont, were measured by installing fourpanels-each capable of measuring forces in the normal and tangential direction - on both sides of a vertical V-shaped pier nose. The measured forces are presented for a short period during an ice run. After the ice run, the thickness and sizes of the ice floes were measured and the compressive strength of the ice was determined in the laboratory from the ice samples collected along the river banks. The water level measurements made at several locations along theriver are also presented for the period of the ice run.
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    Pages: ii, 8 Seiten , Illustrationen
    Series Statement: CRREL Report 83-32
    Language: English
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  • 31
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-83/33
    In: CRREL Report, 83-33
    Description / Table of Contents: A thermodynamic model has been developed that for the first time describes the entire creep process, including primary, secondary, and tertiary creep, and failure for both constant stress (CSR) tests (σ= const.) and constant strain rate (CSR) tests (ϵ = const.), in the form of a unified constitutive equation and unified failure criteria. Deformation and failure areconsidered as a single thermoactivated process in which the dominant role belongs to the change of entropy. Failure occurs when the entropy change is zero. At that moment the strain rates in CS tests reach the minima and stress in CSR tests reaches the maximum (peak) values. Families of creep (ϵ vs τ) and stress-strain (σ vs ϵ) curves, obtained from uni-axial compression CS and CSR tests of frozen soil, respectively (both presented in dimensionless coordinates), are plotted as straight lines and are superposed, confirming the unity of the deformation and failure process and the validity of the model. A method is developed for determining the parameters of the model, so that creep deformation and the stress-strain relationship of ductile materials such as soils can be predicted based upon information obtained from either type of test.
    Type of Medium: Series available for loan
    Pages: v, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 83-33
    Language: English
    Note: CONTENTS Abstract Nomenclature Introduction Principal relationships Constitutive equation Failure criteria Secondary creep: Flow equations Creep at constant stress (σ = Const.) Creep model Creep strain (σ = Const.) Creep at constant strain rate (ϵ = Const.) Stress-strain relationship Stress/strain/strain rate at failure Test data Preliminary analysis Constant stress tests (σ = Const.) Constant strain rate tests (ϵ = Const.) The principle of superposition Thermodynamic equation of creep Conclusions Literature cited
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  • 32
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/3
    In: CRREL Report, 84-3
    Description / Table of Contents: The results of resistance tests in level ice and broken ice channels are presented for two models of the WTGB 140-fticebreaker at scales of 1:10 and 1:24, respectively. No scale effect on the resistance in level ice could be detected between the two models. From the test results an empirical predictor equation for the full scale ice resistance is derived. Predicted resistance is compared against, and found to be 25 to 40% larger than, available full-scale values estimated from thrust measurements during full-scale trials of the Great Lakes icebreaker Katmai Bay.
    Type of Medium: Series available for loan
    Pages: v, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 84-3
    Language: English
    Note: COTENTS Abstract Preface Nomenclature Introduction Model characteristics and test conditions Ice-hull coefficient of friction Measurements of ice properties Experimental procedures Data acquisition system Test program and procedures for 1:10 model Test program and procedures for 1:24 model Analysis of test results Comparison of test results between 1:10 and 1:24 models Analysis of tests in broken or brash-filled ice channels Analysis of tests in level ice Full-scale prediction of level ice resistance Conclusions Literature cited
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  • 33
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/4
    In: CRREL Report, 84-4
    Description / Table of Contents: Ice problems developed in the Sault Ste. Marie, Michigan, portion of the St. Marys River because of winter navigation. Passing ships and natural influences moved ice from Soo Harbor into Little Rapids Cut in sufficient quantities to jam, cause high water in the harbor, and prevent further ship passage. After physical model and engineering studies, two ice booms with a total span of 1375 ft (419 m) with a 250-ft (76-m) navigation opening between were installed at the head of Little Rapids Cut in 1975. A modest field study program on the booms was conducted for the ensuring four winters to determine ice and boom interaction and the effects of ship passages on the system. Forces on some anchors were recorded and supplemental data were taken by local personnel. Several reports have been written about the booms' early operations. This paper presents four-year summary of the main effects of the booms on ice and ship interaction and vice versa. Throughout the four winter seasons, the small quantities of ice lost over and between the booms were manageable. Ships usually passed through the boom without influencing the boom force levels, but at time they brought about large changes. One boom needed strengthening, and artificial islands were added for upstream ice stability. Coast Guard icebreakers were also a necessary part of winter navigation in this area.
    Type of Medium: Series available for loan
    Pages: iv, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 84-4
    Language: English
    Note: CONTENTS Abstract Preface Introduction St. Marys River Ice problems Remedial measures Field studies Highlights, trends, and major findings Modifications to boom Maximum forces Ship traffic Characteristics Effect of boom forces Effect on ice Conclusion Literature cited Appendix A: Ice boom forces
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  • 34
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/5
    In: CRREL Report, 84-5
    Description / Table of Contents: Diatom species composition and relative abundances were determined for ice cores obtained from Weddell Sea pack ice during the October-November 1981 Weddell Polynya Expedition (WEPOLEX). Ice thickness and salinity indicate that the ice was less than one year old. The predominant ice type (70%) was frazil, which has the capacity to mechanically incorporate biological material through nucleation and scavenging. Diatoms were found throughout the length of the cores. Species showed down-core fluctuations in abundance that appeared to be correlated with changes in ice type. Pennate forms were more abundant than centrics, the average ratio being 16:1. Diatom frustules with intact organic material were more abundant (5 billion cells/liter). Differences in species abundances are attributed initially to incorporation of algal cells from a temporally changing water column and subsequently to diatom reproduction within the ice. Scanning electron micrographs illustrating the morphologic characteristics of the predominant species are included.
    Type of Medium: Series available for loan
    Pages: iv, 46 Seiten , Illustrationen
    Series Statement: CRREL Report 84-5
    Language: English
    Note: Contents Abstract Preface Introduction Materials and methods Results Discussion Conclusions Literature cited Appendix A: Taxonomic terms Appendix B: Differences in species composition and abundance in duplicate samples examined under optical and inverted light microscopes Appendix C: Morphologic descriptions and SEM micrographs
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  • 35
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-84/7
    In: CRREL Report, 84-7
    Description / Table of Contents: Experiments were conducted in CRREL's refrigerated flume facility to examine the two-dimensional force distribution of a floating, fragmented ice cover restrained by a boom in a simulated river channel. To determine the force distribution, a vertically walled channel, instrumented for measuring normal and tangential forces, and an instrumented restraining boom were installed in a 40.0- by 1.3-m flume. Two sizes of polyethylene blocks and two similar sizes of fresh-water ice blocks were tested using water velocities ranging from 10 to 30 cm/s. The forces measured at the instrumented boom leveled off with increasing cover length. The contribution of the increasing shear forces developed along theshorelines to this leveling off in the data was clearly evident. The shear coefficients of the polyethylene blocks averaged 0.43, and the freshwater ice averaged 0.044. The normal force measured along the instrumented shoreline could not be related simply by a K coefficient to the longitudinal force; another expression was required, with a term being a function of the cover thickness and independent of the undercover shear stress or cover length. By adding this term, good agreement was then found between the measured and predicted values of the boom forces and the shoreline normal and shear forces
    Type of Medium: Series available for loan
    Pages: iv, 22 Seiten , Illustrationen
    Series Statement: CRREL Report 84-7
    Language: English
    Note: CONTENTS Abstract Preface Introduction Experiments Test flume facility Experimental apparatus Experimental procedure Results Plastic versus freshwater ice Shoreline forces Boom forces Average shear stress under ice cover Internal forces Discussion Data scatter Summary and conclusions Literature cited Appendix A: Experimental results
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  • 36
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/6
    In: CRREL Report, 84-6
    Description / Table of Contents: An expression relating aerosol growth to cold environmental conditions was developed. This was accomplished by solving the diffusion equation with the method of Laplace transformation. The series solution was expressed in terms of the dimensionless parameters K (ratio of vapor density over droplet surface to droplet density), ω (ratio of environmental vapor density at time zero to vapor density over droplet surface), and dimensionless time τ (ratio of product of diffusion coefficient D and time t to square of initial radius of condensation nucleus). To take into account the variation of the vapor density over the surface of an acidic condensation nucleus due to the continuous dilution of the droplet, the solution was obtained by assuming various levels of constant vapor concentration. The final expression [R/R sub o - 1 = 2.4917 x 10 to the minus 18th power) exp(0.0737 θ) (P sub RHS/25) x (100-P sub RHS) τ to the 0.9890 powder] can be used to compute the value of R once the values of initial radius R sub o, relative humidity P sub RH, percent of relative humidity at the droplet surface P sub RHS, and environmental temperature θ are given.
    Type of Medium: Series available for loan
    Pages: vi, 28 Seiten , Illustrationen
    Series Statement: CRREL Report 84-6
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature General background The problem Method of solution Results and discussion Conclusions Literature cited Appendix: Evaluation of rn's in equation 25
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  • 37
    Call number: MOP 46028/1983 / Mitte
    In: World weather watch : Consolidated report on the voluntary co-operation programme including projects approved for circulation, 1983
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    Language: English
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  • 38
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-79/12
    In: CRREL Report, 79-12
    Description / Table of Contents: An analysis of a point source bubbler system used to induce local melting of an ice cover is presented. The analysis leads to a numerical simulation programmed in FORTRAN which may be used to predict the effectiveness of such systems. An example application is presented using a typical record of average daily air temperatures. The FORTRAN program for the point source simulation as well as a FORTRAN program for line source systems are included in the Appendix.
    Type of Medium: Series available for loan
    Pages: iii, 12 Seiten , Illustrationen
    Series Statement: CRREL Report 79-12
    Language: English
    Note: CONTENTS Abstract Preface Introduction Outline of analysis Plume analysis Heat transfer analysis Temperature of impinging plume Heat transfer coefficient Melting of the ice cover Simulation example Thermal reserve analysis Literature cited Appendix
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  • 39
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-79/14
    In: CRREL Report, 79-14
    Description / Table of Contents: Solid ice growth rates due to the presence of frazil slush beneath the ice cover have been shown to be greater than the so-called static growth. The frazil slush reduces the effective heat of ice solidification and the frazil particles freeze into the interstitial water. Numerical schemes are presented which clearly show the effect of frazil ice porosity on ice cover growth rates and the numerical model using air temperature as the major input is compared with field data on ice thickness in a small river laden with frazil ice beneath its cover.
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    Pages: ii, 4 Seiten , Illustrationen
    Series Statement: CRREL Report 79-14
    Language: English
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  • 40
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-79/11
    In: CRREL Report, 79-11
    Description / Table of Contents: A theory of the optical properties of snow in the 2-20 region of the infrared has been developed. Using this theory it is possible to predict the absorption and scattering coefficients and the emissivity of snow, as a function of the snow parameters of grain size and density, for densities between 0.17 and 0.4 g/cm3. The absorption and scattering coefficients are linearly related to the density and inversely related to the average grain size. The emissivity is independent of grain size and exhibits only a weak dependence upon density.
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    Pages: iii, 9 Seiten , Illustrationen
    Series Statement: CRREL Report 79-11
    Language: English
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  • 41
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-79/19
    In: CRREL Report, 79-19
    Description / Table of Contents: The critical velocities of loads moving over floating ice plates have been determined by several authors. In all these analyses it was assumed that the in-plane force field in the ice cover is zero. However, due to constrained thermal strains, in-plane forces do occur in the field. The purpose of the present paper is to determine their effect upon the critical velocities of the moving loads. It is shown that a uniform compression force field reduces the critical velocity, whereas a tension force field has the opposite effect.
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    Pages: ii, 12 Seiten , Illustrationen
    Series Statement: CRREL Report 79-19
    Language: English
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  • 42
    Call number: MOP 44965 / Mitte
    Type of Medium: Monograph available for loan
    Pages: Illustrationen , x, 221 Seiten
    Series Statement: Severe Storms Research No. 45
    Language: English
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  • 43
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/2
    In: CRREL Report, 84-2
    Description / Table of Contents: Investigations of the in situ complex dielectric constant of sea ice were made using time-domain spectroscopy. It was found that (1) for sea ice with a preferred horizontal crystal c-axis alignment, the anisotropy of polarizing properties of the ice increased with depth, (2) brine inclusion conductivity increased with decreasing temperature down to about -8 C, at which point the conductivity decreased with decreasing temperature, (3) the DC conductivity of sea ice increased with increasing brine volume, (4) the real part of the complex dielectric constant is strongly dependent upon brine volume but less dependent upon the brine inclusion orientation, (5) the imaginary part of the complex dielectric constant was strongly dependent upon brine inclusion orientation but much less dependent upon brine volume. Because the electromagnetic (EM) properties of sea ice are dependent upon the physical state of the ice, which is continually changing, it appears that only trends in the relationships between the EM properties of natural sea ice and its brine volume and brine inclusion microstructure can be established.
    Type of Medium: Series available for loan
    Pages: vi, 38 Seiten , Illustrationen , 1 Beilage
    Series Statement: CRREL Report 84-2
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Dielectric properties of sea ice Time-domain spectroscopy measurement Laboratory measurements Field measurements Analysis of ladder data Conductivity of brine and sea ice Complex dielectric constant of brine and sea ice Discussion and conclusions Literature cited
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  • 44
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-79/29
    In: CRREL Report, 79-29
    Description / Table of Contents: An analytical study of the propagation of shock waves in snow was carried out to evaluate the response of medium density snow to high rates of loading. One solution was developed for steady shock waves; this resulted in calculation of pressure jump, density jump and stress wave speed. Correlation with available experimental data was found to be good. Nonsteady shock waves were also considered in order to evaluate wave attenuation rates in snow. Very few data were available to compare with the analytical results, so no definite conclusions on the part of the study could be made. The results show, however, that shock waves that produce plastic deformation attenuate at extremely high rates and that differences in pressure between two waves are quickly eliminated within a short distance. Calculations were also made to evaluate the effect of wave frequency on attenuation rates. The results show that, for plastic waves, frequency is not a predominant factor for determining attenuation rates.
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    Pages: v, 14 Seiten , Illustrationen
    Series Statement: CRREL Report 79-29
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature I. Introduction II. A constitutive law for snow and balance principles III. Compatibility laws and jump equations for stress waves IV. Steady shock waves in snow V. Comparison of steady-wave theory with experimental results VI. A numerical solution to the nonsteady wave problem VII. Jump equations for nonsteady shock waves VIII. Reduced jump equations Discussion and conclusions Literature cited
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  • 45
    Call number: MOP 46175 / Mitte
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    Language: English
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  • 46
  • 47
    Monograph available for loan
    Monograph available for loan
    Dresden : Ingenieurschule für Geodäsie und Kartographie
    Associated volumes
    Call number: MOP 47524 / Mitte
    In: Meteorologische Messtechnik
    Type of Medium: Monograph available for loan
    Pages: 50 Seiten
    Series Statement: Meteorologische Messtechnik
    Language: German
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  • 48
    Call number: MOP 46654 / Mitte
    In: World weather program : plan for fiscal year, 1980 and 1981
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  • 49
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-79/15
    In: CRREL Report, 79-15
    Description / Table of Contents: This report discusses the application of several modern geophysical techniques to groundwater exploration in areas in permafrost. These methods utilize the principles of magnetic induction and radiowave surface impedance in the 10- to 400-kHz band, the techniques of impulse and side-looking radar in the 50- to 10,000-MHz band, and also some optical techniques using imagery obtained from a satellite. Low frequency case studies demonstrate the use of the techniques for detecting free water under an ice cover in shallow, almost completely frozen lake basins, and thaw zones within lake beds, stream channels, and in permafrost in general. The radar studies demonstrate the use of these techniques for determining depth of free water and ice cover thickness on lakes and rivers
    Type of Medium: Series available for loan
    Pages: iv, 30 Seiten , Illustrationen
    Series Statement: CRREL Report 79-15
    Language: English
    Note: CONTENTS Abstract Preface Introduction Part I. Low frequency resistivity methods Resistivity of earth materials Theory and description of techniques Surface impedance technique Airborne radiowave technique Magnetic induction technique Case studies Location of thaw zones beneath lakes and rivers Location of permeable materials in unfrozen ground Delineating permafrost boundaries Part II. High frequency dielectric methods Dielectric properties of earth materials Theory and description of equIpment Profiling radar Imaging radar Case studies Radar profile of a river channel Impulse radar profile of a freshwater lake SLAR imagery of Arctic lakes Literature cited Appendix A: Satellite imagery for subsurface water exploration
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  • 50
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-79/9
    In: CRREL Report, 79-9
    Description / Table of Contents: Sedimentation at the terminus of the Matanuska Glacier has been found to be primarily subaerial in a 100- to 300-m wide, ice-cored zone paralleling the edge of the active ice. Certain physical and chemical characteristics of the ice and debris of the superglacial, englacial and basal zones of the glacier indicate the debris of the basal zone, the primary source of sediment, is entrained during freeze-on of meltwater, probably surficially derived, to the glacier sole. Till formation results from the melting of buried ice of the basal zone. Melt-out till inherits the texture and particle orientations of basal ice debris; other properties are not as well preserved. Most deposits result from resedimentation of till and debris by sediment gravity flows, meltwater sheet and rill flow, slump, spall, and ice ablation. Depositional processes are interrelated in the process of backwasting of ice-cored slopes. Sediment flows are the primary process of resedimentation. Their physical characteristics, multiple mechanisms of flow and deposition, and characteristics of their deposits vary with the water content of the flow mass. Deposits of each process are distinguished from one another by detailed analysis of their internal organization, geometry and dimensions, and the presence of other internal and related external features. Genetic facies are defined by these characteristics. The interrelationship of processes develops a composite depositional sequence defined in terms of genetic facies associations; an upper, resedimented facies association, a middile, till facies association, and a lower, subglacial-resedimental facies association. The lateral and vertical distribution of genetic facies within the associations is mainly nonrepetitive.
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    Pages: X, 112 Seiten , Illustrationen , 1 Beilage
    Series Statement: CRREL Report 79-9
    Language: English
    Note: CONTENTS Abstract Preface Summary Chapter 1. Introduction Field site Historical background Chapter 2. Characteristics of the debris and ice Characteristics of the facies and subfacies Basal zone Characteristics of the debris Discussion Chapter 3. Oxygen isotope analysis Sampling and analysis Results Discussion Chapter 4. Depositional processes—till formation Methods of analysis Environmental setting Till formation Chapter 5. Depositional processes—resedimentation Sediment flows Other resedimentation processes Resedimentation process relationships Chapter 6. Process distribution, sediment dispersal and depositional patterns Physical characteristics Sediment dispersal Sedimentary facies Patterns of terminus sedimentation Chapter 7. Conclusions Literature cited
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  • 51
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-79/20
    In: CRREL Report, 79-20
    Description / Table of Contents: A volumetric constitutive equation was developed to characterize the behavior of snow subjected to large compressive volumetric deformations. By treating the material as a suspension of air voids in a matrix material of polycrystalline ice, a rate-dependent volumetric constitutive law was formulated and found to accurately predict material response to pressure loads for a wide range of load rates. Comparison of the theory with shock wave data was not considered in this paper, although the constitutive law appears to be valid for such load situations. One application to oversnow mobility of tracked vehicles was made. In this case, power requirements due to snow compaction were calculated parametrically in terms of vehicle speed, track loading, and snow density.
    Type of Medium: Series available for loan
    Pages: v, 13 Seiten , Illustrationen
    Series Statement: CRREL Report 79-20
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Material representation of ice Development of the volumetric constitutive law for snow Fully elastic phase Elastic-plastic phase Fully plastic phase Simplified equation Comparison with experimental data Application to vehicle mobility problems Conclusions Literature cited
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  • 52
    Call number: MOP 45476 / Mitte
    Type of Medium: Monograph available for loan
    Pages: [400] Seiten , Illustrationen , 28 cm
    Language: English
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  • 53
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-79/18
    In: CRREL Report, 79-18
    Description / Table of Contents: Temperatures of the subgrade and of sulfur foam insulation test sections in an expedient road were monitored with thermocouples to document freezing and thawing conditions. Vehicular trafficking was conducted on a limited basis to determine the load supporting capabilities of the foam. The sulfur foam, placed directly under a prefabri­cated surface mat, was found to be unsuitable for use as an expedient thermal insulation and traffic load supporting material primarily because of its low tensile strength and high brittleness. The insulating value of sulfur foam pro­duced by the batch process in the field was about one-half that of extruded polystyrene, meaning double the thick­ness for equal protection against thaw.
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    Pages: v, 21 Seiten
    Series Statement: CRREL Report 79-18
    Language: English
    Note: CONTENTS Preface Conversion factors: U.S. customary to metric units of measurement Introduction Site preparation Sulfur foam application Sulfur foaming equipment Environmental aspects Traffic testing and test pad observations Field sampling and temperature readings during pouring Lab tests for physical properties Sulfur foam odor analysis Insulation costs Lab experiments with sulfur foam Conclusions Literature cited
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  • 54
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-79/17
    In: CRREL Report, 79-17
    Description / Table of Contents: Six test roofs of two different slopes — 16.3° and 39.8°, and three different roof coverings — asphalt shingles, cedar shingles, and corrugated aluminum sheeting, were constructed at USACRREL, Hanover, New Hampshire, and were instrumented with thermocouples, heat flow meters, and calibrated gutters. Measurements were recorded for the winters of 1971-72 and 1972-73. The degree of icing and the chronological changes in the snow cover were recorded on 35-mm Kodachrome slides. It was found that eave icing is a sensitive function of the slope, roof covering composi­tion, and solar radiation. The effects of wind were not investigated; the data were screened to remove all informa­tion corresponding to windspeeds over 8 km/h. In order of increasing tendency to form ice dams on the eaves, the roofs were high-slope asphalt, high-slope cedar, high-slope aluminum, low-slope asphalt, low-slope cedar, and low- slope aluminum.
    Type of Medium: Series available for loan
    Pages: vi, 40 Seiten , Illustrationen
    Series Statement: CRREL Report 79-17
    Language: English
    Note: CONTENTS Abstract Preface Summary Introduction Experimental procedure Description of roofs Meteorological data Procedure Analysis General Temperature profiles Temperature rankings Heat flow Snow depths and meltwater volumes Degree of icing Results and conclusions General Temperature profiles of the roofs Comparative temperatures of roofs by section — rankings Heat flow and accumulation Snow depth, coverage, and meltwater Degree of icing Discussion of the icing problem Literature cited
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  • 55
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-79/16
    In: CRREL Report, 79-16
    Description / Table of Contents: In 1973 two membrane encapsulated soil layer (MESL) test sections were constructed into existing gravel surfaced roads at Elmendorf A FB and at Ft. Wainwright in Anchorage and Fairbanks, Alaska, respectively. The Elmendorf AFB MESL contains a silty clay soil and the Ft. Wainwright MESL contains a nonplastic silt. Both sections were constructed at soil moisture contents of approximately 2% to 3% below optimum for the CE-12 compactive effort. There were no indica­tions of soil moisture migration during freezing in either test section and after-thaw field California Bearing Ratio values were nearly equal to values measured before freezing. There is growing evidence of a slight increase in the overall soil moisture content in the Elmendorf AFB MESL possibly from moisture entering through the single layer polyethylene sidewalls which were not treated with asphalt emulsion. There is good evidence that the membrane of the same section might have received damage during a soil sampling operation which allowed localized moisture infiltration. A two-layer polyethylene membrane used in the Ft. Wainwright MESL is considered a more positive moisture barrier than the single sheet and a justifiable added cost for permanent construction.
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    Pages: v, 27 Seiten , Illustrationen
    Series Statement: CRREL Report 79-16
    Language: English
    Note: CONTENTS Preface Introduction Laboratory studies General Elmendorf AFB silty clay Fairbanks silt Field studies Elmendorf AFB MESL Ft. Wainwright MESL Traffic use Elmendorf AFB MESL Ft. Wainwright MESL Performance observations Elmendorf AFB MESL Ft. Wainwright MESL Conclusions Elmendorf AFB MESL Ft. Wainwright MESL General Literature cited Appendix A. The MESL concept Appendix B. Classification, compaction, freezing and CBR test results for Fairbanks silt
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  • 56
    Monograph available for loan
    Monograph available for loan
    Urbana : Illinois State Water Survey
    Call number: MOP 45166
    Type of Medium: Monograph available for loan
    Pages: 57 Seiten
    Language: English
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  • 57
    Call number: MOP 44845 / Mitte
    Type of Medium: Series available for loan
    Pages: [186] Seiten , Illustrationen , 28 cm
    Language: English
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  • 58
    Call number: ZSP-201-79/23
    In: CRREL Report, 79-23
    Description / Table of Contents: The performance of surface impedance and magnetic induction electromagnetic subsurface exploration techniques was studied seasonally at various sites in Alaska where permafrost and massive ground ice occurred. The surface impedance method, which uses radiowaves in the LF and VLF bands, and the magnetic induction method, which uses low-frequency magnetic induction fields, distinguish subsurface materials by the electrical resistivity of the materials. The methods used have greatest sensitivity within about 20 m of the surface and are, therefore, most applicable for shallow subsurface investigations. The selection of study sites was based on anticipated contrasts in electrical resistivity between ground ice and adjacent earth materials. A magnetic induction instrument, using a separation of 3.66-m between the transmitter and receiver antennas, in general was able to detect near-surface zones of massive ice and to provide data regarding permafrost distribution in both the Fairbanks and Prudhoe Bay areas. At this antenna separation, the depth of magnetic field penetration was sufficient to include mainly the zone containing maximum contrasts in resistivity between ground ice and other earth materials. In the Fairbanks area, contrasts, in this zone were greatest in late winter when the seasonally thawed surface layer was completely frozen. When thawed, this layer usually becomes more conductive and often masks the deeper resistivity contrasts. In the Prudhoe Bay area, maximum ground resistivity contrasts were detected in late summer when shallow subsurface temperatures had risen sufficiently to permit resistivity contrasts between the massive ice and the ice-rich ground to appear.
    Type of Medium: Series available for loan
    Pages: v, 24 Seiten , Illustrationen
    Series Statement: CRREL Report 79-23
    Language: English
    Note: CONTENTS Abstract Preface Introduction Background Obiectives and procedures Ground electrical resistivity in permafrost regions Electromagnetic techniques General Magnetic induction method Surface impedance fradiowave method Direct current method General description of field sites Results Site 1 CRREL permafrost station, Fairbanks, Alaska Site 2 Planned road cut for Steese Highway near Fox, Alaska Site 3 Relic floodplain near Fairbanks, Alaska Site 4 Pingos, Prudhoe Bay, Alaska Site 5 Ice wedges, Prudhoe Bay, Alaska Comparisons between the surface impedance and magnetic induction methods Conclusions and recommendations Literature cited Appendix A. Discussion of the depth of sensitivity of the magnetic induction method using two- and three-layer apparent resistivity curves
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  • 59
    Call number: AWI Bio-21-94346
    In: Bibliotheca diatomologica, 3
    Type of Medium: Monograph available for loan
    Pages: 386 Seiten
    ISBN: 3768213757
    Series Statement: Bibliotheca diatomologica 3
    Language: English
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  • 60
    Call number: 12252/2
    Type of Medium: Monograph available for loan
    Pages: XXII, 1025 Seiten , Illustrationen
    ISBN: 0306400693
    Language: English
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  • 61
    Monograph available for loan
    Monograph available for loan
    Leningrad : Gidrometeoizdat
    Call number: MOP 44835 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 239 Seiten , Illustrationen , 22 cm
    Language: Russian
    Note: In kyrillischer Schrift
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  • 62
    Call number: MOP 44808 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 152 Seiten , Illustrationen , 21 cm
    Language: Russian
    Note: In kyrillischer Schrift
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  • 63
    Call number: S 90.0006(154)
    In: Memoir / Geological Society of America, 154
    Type of Medium: Series available for loan
    Pages: X, 824 Seiten , Illustrationen, graphische Darstellungen, Karten , 3 Beil. (Mikrofiches)
    Edition: Reprinted
    ISBN: 0-8137-1154-1
    Series Statement: Memoir / Geological Society of America 154
    Language: English
    Note: Preface INTRODUCTION History of the Nazca Plate Project George P. Woollard and La Verne D. Kulm DIVERGENT BOUNDARY Tectonics of the Nazca-Pacific divergent plate boundary David K. Rea Structure and evolution of the Easter plate D. W. Handschumacher, R. H. Pilger, Jr., J. A. Foreman, and J. F. Camphell Petrogenesis and secondary alteration of upper layer 2 basalts of the Nazca plate K. F. Scheidegger and J. B. Corliss Temporal variations in secondary minerals from Nazca plate basalts, diabases, and microgabbros Debra S. Slakes and K. F. Scheidegger METALLIFEROUS SEDIMENTS Geochemistry of Nazca plate surface sediments: An evaluation of hydrothermal, biogenic, detrital, and hydrogenous sources Jack Dymond Metalliferous-sediment deposition in time and space: East Pacific Rise and Bauer Basin, northern Nazca plate G. Ross Heath and Jack Dymond Lead isotopic composition of metalliferous sediments from the Nazca plate E. Julius Dasch Sediment accumulation rate patterns on the northwest Nazca plate G. M. McMurtry. H. H. Veeh, and C. Moser Uranium and thorium isotopic investigations in metalliferous sediments of the northwestern Nazca plate H. Herbert Veeh Formation and growth of ferromanganese oxides on the Nazca plate Mitchell Lyle Sediment and associated structure of the northern Nazca plate D. L. Erlandson, D. M. Hussong, and J. F. Campbell Economic appraisal of Nazca plate metalliferous sediments Cvrus W. Field, Dennis G. Wetherell, and E. Julius Dasch CONTINENTAL MARGIN AND TRENCH Tectonics, structure, and sedimentary framework of the Peru-Chile Trench W. J. Schweller, L. D. Kulm, and R. A. Prince Coastal structure of the continental margin, northwest Peru and southwest Ecuador Glenn L. Shepherd and Ralph Moberly Sedimentary basins of the Peru continental margin: Structure, stratigraphy, and Cenozoic tectonics from 6°S to 16°S latitude T. Thornburg and L. D. Kulm Crustal structures of the Peru continental margin and adjacent Nazca plate, 9°S latitude Paul R. Jones III Crustal structure and tectonics of the central Peru continental margin and trench L. D. Kulm, R. A. Prince, W. French, S. Johnson, and A. Masias Late Cenozoic carbonates on the Peru continental margin: Lithostratigraphy, biostratigraphy, and tectonic history La Verne D. Kulm, Hans Schroder, Johanna M. Resig, Todd M. Thornburg, Antonio Masias, and Leonard Johnson Vertical movement and tectonic erosion of the continental wall of the Peru-Chile Trench near 1 l°30'S latitude Donald M. Hussong and Larry K. Wipperman Shallow structures of the Peru Margin 12°S - 18°S S. H. Johnson and G. E. Ness Clay mineralogy of the Peru continental margin and adjacent Nazca plate: Implications for provenance, sea level changes, and continental accretion Victor J. Rosato and La Verne D. Kulm Structures of the Nazca Ridge and continental shelf and slope of southern Peru Richard Couch and Robert M. Whitsett Tectonics of the Nazca plate and the continental margin of western South America, 18° to 23°S William T. Coulbourn Biogeography of benthic foraminifera of the northern Nazca plate and adjacent continental margin Johanna M. Resig Estimation of depth to magnetic source using maximum entropy power spectra, with application to the Peru-Chile Trench Richard J. Blakely and Siamak Hassanzadeh An active spreading center collides with a subduction zone: A geophysical survey of the Chile Margin triple junction E. M. Herron, S. C. Cande, and B. R. Hall Structures of the continental margin of Peru and Chile Richard Couch, Robert Whit sett, Bruce Huehn, and Luis Briceno-Guarupe ANDEAN CONVERGENCE ZONE Volcanic gaps and the consumption of aseismic ridges in South America Amos Nur and Zvi Ben-Avraham Geological and geophysical variations along the western margin of Chile near lat 33° to 36°S and their reaction to Nazca plate subduction Allen Lowrie and Richard Hey Chile Margin near lat 38°S: Evidence for a genetic relationship between continental and marine geologic features or a case of curious coincidences? E. M. Herron Convergence and mineralization — Is there a relation? C. Wayne Burnham Role of subducted continental material in the genesis of calc-alkaline volcanics of the central Andes David E. James Isotopic composition of Pb in Central Andean ore deposits George R. Tilt on, Robert J. Pollak, Alan H. Clark, and Ronald C. R. Robertson Epilogue: Geostill reconsidered Cyrus W. Field and E. Julius Dasch
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  • 64
    Call number: AWI G3-22-94980
    In: Bochumer geographische Arbeiten, 35
    Type of Medium: Series available for loan
    Pages: XI, 211 Seiten , Illustrationen
    ISBN: 3-506-71215-2
    Series Statement: Bochumer geographische Arbeiten 35
    Language: German
    Note: Zugleich: Dissertation, Ruhr-Universität Bochum, 1978 , lnhal tsverzeichnis Verzeichnis der Abbildungen Verzeichnis der tabellarischen Übersichten 1. Einleitung 1.1 Terminologische Fragen 2. Die bisherige Diskussion um die Definition des Periglaziarbegriffes 3. Einführung in die Problematik und Schwerpunkte dieser Untersuchung 3.1 Unterschiedliche Definitionsansätze 3.2 Das Problem aus geographischer Sicht 3.3 Das Problem aus palaoqeographisch-geologischer Sicht 3.4 Schwerpunkte und Arbeitsweise der weiteren Untersuchung 4. Die Einflußnahme periglaziärer Milieufaktoren im Überblick 4.1 Direkt- und indirekt-klimatische Steuerungsfaktoren 4.2 Aklimatische Steuerunqsfaktoren 5. Klimatische und geographische Bodenqefrornistypen 5.1 Dauerfrostboden mit jahreszeitlicher Auftauschicht 5.1.1 Terminologische Fragen und die räumliche Gliederung des Dauerfrostbodens 5.1.2 Die thermische Vertikalqliederung des oberflächennahen Dauerfrostbodens 5.1.3 Zur Verbreitung und klimatischen Abgrenzung des Dauerfrostbodens 5.2 Jahreszeitliche Bodengefrornis 5.3 Tageszeitliche und kurzperiodische Bodengefrornis 5.4 Kammeis 6. Analyse der Bildung, Verbreitung und Differenzierunq wichtiger rezenter Periglaziarerscheinungen und Bewertung ihrer Verwendbarkeit als Definitionskriterien des Periglaziärs 6.1 Periglaziäre Prozesse und periglaziäre Formen im engeren Sinne (Periglaziäre Mikroformung) 6.1.1 Formen der Bodenmusterung ohne Detritussortierung (Texturböden) 6.1.1.1 Kongelikontraktionsformen mit Spalteneis (Eiskeilpolygone) 6.1.1.2 Kongelikontraktionsformen ohne Spalteneis (Sandkeilpolygone) 6.1.1.3 Frostspaltenmakropolygone und Mollisolfrostkeile 6.1.1.4 Spaltenmikropolygone ('Zellenböden') 6.1.1.5 Erdbülten (Thufur) 6.1.1.6 Nichtsortierte Feinerdekreise (Mudpits) 6.1. 2 Frost- und Eishügelformen 6.1.2.1 Saisonale Frosthügel 6.1.2.2 Palsas 6.1.2.3 Pingos und pingoähnliche Formen 6.1.3 Strangmoore 6.1.4 Formen der Bodenmusterung mit Detritussortierung (Strukturböden) 6.1.5 Periglaziär-denudative Prozesse und Formen im engeren Sinne - Kleinformen der Gelisolifluktion 6.1. 5.1 Erscheinungen der amorphen Gelisolifluktion 6.1.5.2 Kleinformen der differenzierten Gelisolifluktion 6.1.5.3 Zusammenfassung und Ergebnisse 6.1.6 Blockgletscher 6.1.7 Vorgänge und Formen der Nivation und Kryoplanation 6.1.8 Dauerfrostboden-Degradation und Depergelationsformen 6.1.8.1 Depergelationsformen infolge vertikaler Dauerfrostboden-Degradation 6.1.8.2 Depergelationsformen infolge lateraler Dauerfrostboden-Degradation 6.2 Periglaziäre Prozesse und Formen im weiteren Sinne (Periglaziäre Meso- und Makroformung) 6.3 Zusammenfassung der klimageomorphologischen Leitformenwerte 7. Zur räumlichen Abgrenzung und regionalen Differenzierung der periglaziären Zone und Höhenstufe - planetarischer und hypsometrischer Wandel der periglaziären Formung 7.1 Grundlagen und Kriterienl der räumlichen Abgrenzung des Periglaziärs 7.2 Kriterien der regionalen Differenzierung des Periglaziärs 7.3 Die Abgrenzung und regionale Differenzierung der periglaziären Zone 7.3.1 Subpolar-ozeanisches Periglaziär 7.3.1.1 Subpolar-hochozeanisches Periglaziär 7.3.2 Subpolar-kontinentales Periqlaziär (subpolares Subperiglaziär) 7.3.3 Polares Periglaziär 7.3.3.1 Polares Tundrenperiglaziär 7.3.3.2 Polares Frostschuttperiglaziär 7.3.4 Hochpolares Frostschuttperiglaziär und antarktisches Periglaziär 7.3.5 Hochkontinentales Boreal-Periglaziär 7.3.6 Zusammenfassung und Ergebnisse 7.4 Abgrenzung, Untergrenzverlauf und hypsometrische Differenzierung der periglaziären Höherstufe 7.4.1 Subpolar-periglaziäre Höhenstufe 7.4.2 Mediolatitudinal-periglaziäre Höhenstufe 7.4.3 Zur Frage einer periglaziären Höhenstufe in den Sub- und Randtropen 7.4.4 Tropisch-periglaziäre Höhenstufe 7.4.5 Zusammenfassung 8. Zusammenfassung und Ergebnisse Summary Literaturverzeichnis , Zusammenfassung in deutscher und englischer Sprache
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  • 65
    Monograph available for loan
    Monograph available for loan
    Tulsa, Oklahoma : American Ass. of Petroleum Geologists
    Call number: MR 22.94992
    Type of Medium: Monograph available for loan
    Pages: 237 Seiten , überwiegend Illustrationen, graphische Darstellungen
    ISBN: 0-89181-653-4
    Series Statement: AAPG methods in exploration series 4
    Language: English
    Note: INTRODUCTION WHY SEM ANALYSIS? FORMAT SAMPLE PREPARATION HOW THE SEM WORKS THE SEM MICROGRAPH ELEMENTAL ANALYSIS BY SEM EDX ANALYSIS OF MINERALS SILICATES Silica Quartz Cristobalite (Opal-CT) Opal (Opal-A) Feldspars Potassium Feldspar Resorbed Potassium Feldspar Plagioclase Feldspar with K-Feldspar Overgrowths Resorbed Plagioclase Feldspar Clays Chlorite Illite Kaolinite Halloysite Smectite Nontronite Hectorite Illite-smectite Corrensite Glauconite Rectorite Palygorskite Vermiculite Zeolites Analcime Chabazite Clinoptilolite Erionite Heulandite Laumontite Mordenite Phillipsite Thomsonite Yugawaralite Micas Biotite Muscovite Phlogopite Amphiboles Hornblende Actinolite Riebeckite Pyroxenes Augite Hypersthene Others Talc Chrysotile Sphene CARBONATES Calcite Dolomite Ferroan Dolomite/Ankerite Siderite Chalk PHOSPHATES Apatite Collophane Florencite HALIDES Halite SULFIDES Pyrite Sphalerite SULFATES Gypsum Anhydrite Copiapite Melanterite Barite OXIDES Hematite and Goethite Rutile Magnetite llmenite MISCELLANEOUS Wood ENERGY TABLE OF CHARACTERISTIC X-RAY TRANSITIONS GLOSSARY REFERENCES
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  • 66
    Monograph available for loan
    Monograph available for loan
    Jakutsk : Jakutskij Filial SO AN SSSR
    Call number: AWI G3-22-94893
    Description / Table of Contents: В книге приводится обстоятельная и разносторонняя характеристика основных генетических типов почв аласов. Выявлено влияние термокарстового аласообразования на почвообразовательный процесс. Полученные результаты позволяют рассматривать почвы аласов как самостоятельные типы, возникновение которых связано со своеобразным аласным процессом, присущим, только термокарстовым ландшафтам. Впервые охарактеризованы особенности структуры почвенного покрова аласов и раскрыты причины ее дифференциации . Книга предназначена для почвоведов, мелиораторов, агрохимиков, а также для других специалистов сельского хозяйства и проектных организаций, связанных с использованием и освоением земель в области широкого распространения многалетнемерзлых пород.
    Description / Table of Contents: Translation of the abstract: The book provides a detailed and versatile description of the main genetic types of Alas soils. The influence of thermokarst alas formation on the soil-forming process was revealed. The results obtained allow us to consider alas soils as independent types, the occurrence of which is associated with a peculiar alas process, inherent only in thermokarst landscapes. For the first time the features of the structure of the soil cover of the alas were characterized and the reasons for its differentiation were revealed. The book is intended for soil scientists, land reclamators, agrochemists, as well as for other agricultural specialists and design organizations involved in the use and development of land in the area of ​​widespread permafrost.
    Type of Medium: Monograph available for loan
    Pages: 168 Seiten , Illustrationen
    Language: Russian
    Note: ОГЛАВЛЕНИЕ Введение 3 Глава 1. Природно-климатические условия 1.1. Геология и геоморфология 1.2. Многолетняя мерзлота 1.3. Почвообразующие породы 1.4. Климат 1.5. Поверхностные воды 1.6. Растительность Глава 2. Особенности почвообразования в аласах 2.1. Краткая история исследования почв аласов 2.2. Аласный термокарстовый рельеф 2.3. Влияние аласов на почвообразование 2.4. Аласный тип почвообразования Глава 3. Почвы 3.1. Зональные почвы 3.1.1. Мерзлотные палевые почвы 3.1.2. Мерзлотные палевые осолоделые почвы 3.1 .3. Мерзлотные таежные оподз аленные почвы 3.2. Почвы аласов 3.2.1. Аласные болотные и заболоченные почвы 3.2.2. Аласные луговые почвы 3.2.3. Аласные остепненные почвы Глава 4. Структура почвенного покрова аласов 4.1. Условия дифференциации почвенного покрова аласов 4.2. Структура почвенного покрова различных по рельефу аласов 4.3. Неоднородность почвенного покрова разновозрастных термокарстовых котловин Заключение Список литературы
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  • 67
    Call number: MR 22.94954
    Type of Medium: Monograph available for loan
    Pages: XIV, 223 Seiten , Illustrationen, graphische Darstellungen, Karten , 1 Karte
    ISBN: 0-620-06587-7
    Series Statement: Geological Society of South Africa : Special publication 9
    Language: English
    Note: Kartenbeilage unter dem Titel: Provisional geological map of the barberton greenstone belt and surrounding granitic terrane, Eastern Transvaal and Swaziland 〈1: 250000〉 : drawn by N.A.De N.C. Gomes and R.M. N.C. Gomes /by C.R. Anhaeusser, L.J. Robb and M.J. Viljoen, 1981
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  • 68
    Series available for loan
    Series available for loan
    Boulder, Colo. : The Geological Society of America
    Associated volumes
    Call number: S 90.0095(180)
    In: Special paper / The Geological Society of America, 180
    Type of Medium: Series available for loan
    Pages: 211 Seiten , Illustrationen, graphische Darstellungen
    ISBN: 0-8137-2180-6
    Series Statement: Special paper / The Geological Society of America 180
    Language: English
    Note: Introduction / Charles E. Chapin and Wolfgang E. Elston References cited Ash-flow magmatism / Robert L. Smith Abstract Introduction Volumes of ash-flow sheets Size of magma chambers Zoned magma chambers Crater Lake, Oregon Bandelier Tuff, New Mexico SiO₂ and phenocryst variation in ash-flow sheets Periodicity-volume-composition relationships Discussion of model Summary and conclusions Acknowledgments References cited Cooling units and composite sheets in relation to caldera structure / Robert L. Christiansen Abstract Introduction Examples of ash-flow-caldera relations Mazama eruption and Crater Lake caldera Bandelier Tuff and Valles-Toledo calderas Thirsty Canyon Tuff and Black Mountain caldera Timber Mountain-Oasis Valley caldera complex Yellowstone Plateau volcanic field General pattern of ash-flow-caldera relations Acknowledgments References cited The Bishop Tuff: Evidence for the origin of compositional zonation in silicic magma chambers / Wes Hildreth Abstract Introduction Eruptive sequence Major units Units of uncertain correlation Summary of eruptive sequence Eruptive temperatures Accuracy and precision of T-fₒ₂ data Mineralogy Fe-Ti oxides Quartz Sanidine Plagioclase Biotite Pyroxenes Allanite Zircon Apatite Pyrrhotite Whole-rock chemistry Major elements Trace elements Compositional gaps Origin of the compositional zonation Crystal settling Assimilation Basaltic underplating Liquid immiscibility Progressive partial melting Trace elements during partial melting Convection-driven thermogravitational diffusion Lines of evidence Concluding remarks Acknowledgments References cited Rare-earth-element content of some highly differentiated ash-flow tuffs and lavas / Donald C. Noble, Ward L. Rigot, and Harry R. Bowman Abstract Introduction Specimens studied and methods of chemical analysis Results and discussion Acknowledgments References cited Geochemistry of the Los Chocoyos Ash, Quezaltenango Valley, Guatemala / William I. Rose, Jr., Norman K. Grant, and John Easter Abstract Introduction Field description Geochemistry Mineralogy and mineral chemistry Sr-isotope data Modeling of crystal fractionation Time required for crystal fractionation Conclusions Acknowledgments Appendix 1. Analytical methods References cited Geochemical correlation of genetically related rhyolitic ash-flow and air-fall ashes, central and western Guatemala and the equatorial Pacific / Gregory A. Hahn, William I. Rose, Jr., and Thomas Meyers Abstract Introduction Previous investigations of chemical fingerprinting The Los Chocoyos Ash and the stratigraphic sequence of the San Cristobal Group Characteristics of the ash-flow member Sample acquisition and preparation Trace-element analyses Chemical correlation Lateral chemical variations Source of the Los Chocoyos Ash Age of the Los Chocoyos Ash Conclusions Acknowledgments References cited Ignimbrites of the Sierra Madre Occidental and their relation to the tectonic history of western Mexico / Fred W. McDowell and Stephen E. Clabaugh Abstract Introduction Volcanic stratigraphy of the Sierra Madre Occidental Pre-Cretaceous volcanic rocks Lower volcanic complex Unconformity between the igneous sequences Upper volcanic supergroup Calderas of the upper volcanic supergroup Structure of the Sierra Madre Occidental Chemistry Tectonic relationships Acknowledgments References cited Emplacement of pyroclastic flows: A review / Michael F. Sheridan Abstract Introduction Eruptions Observed pyroclastic flows Theoretical eruption models Mobility Topographic barriers Energy line Deposits Morphology Depositional sequence Textures Large clasts Deflation Compositional variation Welded peralkaline ignimbrites Emplacement temperatures Models Fluidization Speculation Summary Acknowledgments References cited Primary and secondary flow structures in ash-flow tuffs of the Gribbles Run paleovalley, central Colorado / Charles E. Chapin and Gary R. Lowell Abstract Introduction Paleovalleys and the Wall Mountain Tuff Primary flow structures Gas cavities (lenticules) Lineation Foliation Primary folds Rotated lithic fragments Imbricated crystals Secondary now structures Secondary folds and growth faults Tension cracks Miscellaneous structures Steam spiracles Conclusions Acknowledgments References cited Welded air-fall tuffs / R.S.J. Sparks and J. V. Wright Abstract Introduction Field relationships Santorini, Greece The 1875 Askja welded tuffs, Iceland Other examples Petrology and chemistry Grain-size studies Santorini welded tuffs Askja welded tuff Compaction and welding Strain, bulk density, and porosity measurements Results for Santorini welded tuffs Results for Askja welded tuff Discussion Acknowledgments References cited Globule ignimbrite of Mount Suswa, Kenya / R. L. Hay, W. Hildreth, and R. N. Lambe Abstract Introduction Scope and purpose of study Geologic setting and previous work Description and field relationships Ignimbrite petrography Vitric materials Crystals and rock fragments Devitrification and gas-phase crystallization Low-temperature alteration Nature of lower ignimbrite sheet Nature of the magma Chemical composition Temperature and viscosity Emplacement of ignimbrite and origin of globules Acknowledgments References cited A model of pyroclastic surge / K. H. Wohletz and M. F. Sheridan Abstract Introduction Terminology Objectives and methods of study Deposits Bed forms Locations Results Pyroclastic-surge facies Discussion and conclusions Development of bed forms Reconstruction of the surge cloud A model of pyroclastic surge: Its fluidization and deflation Acknowledgments References cited Significance of the flattening of pumice fragments in ash-flow tuffs / Donald W. Peterson Abstract Introduction Pumice fragments in the Apache Leap Tuff Recognition and description of pumice fragments Flattening of the pumice Applications of the flattening studies Recognition of cooling units Implications of extreme flattening Determination of stratigraphic level and fault displacement Commercial application of flattening ratios Determination of the degree of welding Pumice flattening as a possible guide to relative temperature of emplacement and rate of accumulation Conclusions Acknowledgments References cited Ash-flow sheets and calderas: Their genetic relationship to ore deposits in Nevada / Edwin H. McKee Abstract Introduction Metal deposits in volcanic-tectonic systems Resurgent cauldrons Geologic setting Parameters of study Distribution of mines and ash-flow sheets Distribution of mines and calderas Discussion Acknowledgments References cited
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  • 69
    Call number: MR 22.94922
    Type of Medium: Monograph available for loan
    Pages: X, 326 Seiten , Illustrationen, graphische Darstellungen, Karten
    ISBN: 0-906812-26-7 , 0-906812-25-9
    Series Statement: Shiva geology series
    Language: English
    Location: Upper compact magazine
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  • 70
    Call number: AWI Bio-23-95024
    Type of Medium: Monograph available for loan
    Pages: X, 583 Seiten , Illustrationen , 19 cm
    Edition: 16., neugestaltete und erweiterte Auflage, 93. bis 100. Tausend von Matthias Schaefer ...
    ISBN: 3-494-00043-3
    Language: German
    Note: Inhaltsverzeichnis Vorwort zur 16. Auflage Aus dem Vorwort zur 13. Auflage Aus dem Vorwort zur 9. Auflage Verzeichnis oft gebrauchter Abkürzungen und Fachausdrücke Systematische Übersicht Tierstämme (M. Schaefer) Stamm: Protozoa, Urtiere (M. Schaefer) Stamm: Porifera, Schwämme (W. Tischler) Stamm: Coelenterata, Hohltiere (W. Tischler) Stamm: Tentaculata, Kranzfüßler (M. Schaefer) Stämme: Scolecida, Niedere Würmer (M. Schaefer) Stamm: Mollusca, Weichtiere (W. Tischler) Stamm: Annelida, Ringelwürmer (M. Schaefer) Stamm: Tardigrada, Bärtierchen (W. Tischler) Stamm: Pentastomida, Zungenwürmer (W. Tischler) Stamm: Arthropoda, Gliederfüßer (Übersicht: M. Schaefer) I. Chelicerata, Spinnentiere (M. Schaefer) II. Crustacea, Krebse (M. Schaefer) III. Tracheata, Tausendfüßer und Insekten . 1. Klasse: Myriopoda, Tausendfüßer (W. Tischler) 2. Klasse: Insecta, Insekten (Ordnungen: W. Tischler) 1.-4. Ord.: Apterygota, Urinsekten (B. Hauser) 5. Ord.: Ephemeroptera, Eintagsfliegen (W. Tischler) 6. Ord.: Odonata, Libellen (E. Schmidt) 7. Ord.: PIecoptera, Steinfliegen (W. Tischler) 8.-11. Ord.: Orthopteria, Geradflügler (K. Harz) 12.-14. Ord.: Psocopteria, Rindenläuse, Tierläuse (W. Tischler) 15. Ord.: Thysanoptera, Fransenflügler (W: Tischler) 16. Ord.: Rhynchota, Schnabelkerfe (W. Tischler excl. Aphidina; K. Heinze: Aphidina) 17. Ord.: Coleoptera, Käfer (W. Tischler) 18. Ord.: Strepsiptera, Fächerflügler (W. Tischler) 19.-21. Ord.: Neuropteria, Netzflügler (W. Tischler) 22. Ord.: Hymenoptera, Hautflügler (M. Schaefer) 23. Ord.: Mecoptera, Schnabelfliegen (W. Tischler) 24. Ord.: Siphonaptera, Flöhe (M. Schaefer) 25. Ord.: Diptera, Zweiflügler (F. Sick) 26. Ord.: Trichoptera, Köcherfliegen (F. Sick) 27. Ord.: Lepidoptera, Schmetterlinge (K. Sattler) Stamm: Echinodermata, Stachelhäuter (W. Tischler) Stamm: Tunicata, Manteltiere (W. Tischler) Stamm: Acrania, Schädellose (R. Kändler) Stamm: Vertebrata, Wirbeltiere 1. Klasse: Pisces, Fische (R. Kändler: Meeresfische; A. Pape: Süßwasserfische) 2. Klasse: Amphibia, Lurche (M. Schaefer) 3. Klasse: Reptilia, Kriechtiere (M. Schaefer) 4. Klasse: Aves, Vögel (A. Kleinschmidt) 5. Klasse: Mammalia, Säugetiere (H. Bohlken u. H. Reichstein) Register , Deutsch
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  • 71
    Call number: AWI P9-24-95719
    Type of Medium: Monograph available for loan
    Pages: 137 Seiten , überwiegend Illustrationen , 28 cm
    Language: Russian
    Note: In kyrillischer Schrift
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  • 72
    Call number: (DE-599)GBV03709842X
    Type of Medium: Monograph available for loan
    Language: German
    Location: MOP - must be ordered
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  • 73
    Monograph available for loan
    Monograph available for loan
    Oxford : Oxford Univ. Press
    Associated volumes
    Call number: 17/M 17.90969/1
    Type of Medium: Monograph available for loan
    Pages: XI, 622 Seiten
    Edition: First edition published in 1984, reprinted 2011
    ISBN: 0198556020
    Series Statement: International series of monographs on chemistry 9
    Language: English
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  • 74
    Call number: ZSP-980-29
    In: ZfI-Mitteilungen, Nr. 29
    Type of Medium: Series available for loan
    Pages: 340 Seiten
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 29
    Language: German
    Note: Inhaltsverzeichnis Band 2a: Über die Verbreitung stabiler Isotope in der Erdkruste / K. Wetzel. - Experimental investigation of kinetics and equilibrium of carbon isotopic exchange reaction in the system HCO3 - CO2 / J. Szaran, W. Zuk. - Carbon isotopes fractionation in closed and open systems CO2-H2CO3-HCO3-CO3^2-: Application to sampling for studies of derivation of carbon dioxide in mineral waters / S. Hałas, J. Lis. - Preliminary results of stable carbon isotopes studies in Sudetic and Carpathian mineral waters / J.Lis ; S. Hałas. - Zur Berechnung von Isotopieeffekten von Transportkoeffizienten in binären Mischungen mittlerer Dichte / R. Der ; H. G. Deuretzbacher ; R. Haberlandt ; J. Heybey. - Physikalische Grundlagen der Berechnung von Isotopieeffekten bei Transportkoeffizienten / J. Heybey. - Untersuchungen zur Diffusion isotopischer Methanspezies / H. Schütze. - Mathematische Modellierung von Tansportprozessen bei der Bildung und Zerstörung von Erdgasakkumulationen / W.-D. Hermichen ; H. Schütze. - Geophysikalisch-montanwissenschaftliche Anwendungen der Radonexhalation des Bodens / W. Stolz ; H. Gast. - Zur Problematik offener Systeme bei radioaktiven Altersbestimmungen / G. Kaiser ; J. Pilot ; M. Schlichting. - Die Anwendung von Quarz in der Rb-Sr-Geochronologie / W. S. Lepin ; M. N. Maslowskaja ; L. W. Pawlowa ; T. W. Jegorowa ; A. I. Melnikow ; S. B. Brandt. - Die isotope Zusammensetzung des Strontiums in Mineralen aus Kimberliten / M. N. Maslowskaja ; W. S. Lepin ; S. I. Kostrowizky ; T. I. Kolosnizyna ; L. W. Pawlowa ; B. M. Wladimirow ; S. B. Brandt. - Rb/Sr-Datierungen in Südbezirken der DDR / G. Hartmann ; G. Tischendorf ; Th. Kaemmel ; H.-J. Dietze ; M. Habedank ; S. Becker. - Sr- und O-Isotopenuntersuchungen an basischen Magmatiten der DDR / L. Pfeiffer ; J. Pilot ; H. J. Rösler ; M. Schlichting ; C.-D. Werner. - Molybdän-Isotopenanalyse an ausgewählten Mineralen / S. Becker ; H.-J. Dietze. - Isotopische Zusammensetzung des Bleis von Sulfiden aus Molybdän-Kupfer-Lagerstätten der Mongolei (russ.) / W. I. Sotnikow ; A. P. Bersina ; W. A. Chalilow ; E. Ja. Polywjanny ; M. Shamsran. - Methode zur Bestimmung natürlicher 15N-Häufigkeiten an geringen Mengen medizinisch-biologischen Materials / H. Faust ; H. Bornhak ; K. Hirschberg ; H. Birkenfeld. - Die N-15-Bestimmung am NOI-5 mit verringerter Probemenge / K. Mauersberger. - Bestimmung von natürlichen C-14-Gehalten in Umweltproben / R. Trettin ; A. Hiller. - Environmental isotopes in geothermal water investigation / P. Noto ; S. Nuti ; C. Panichi ; R. Gonfiantini. - Umweltisotope als Hilfsmittel bei hydrologischen Untersuchungen - Neuere Ergebnisse aus dem Institut für Radiohydrometrie der Gesellschaft für Strahlen- und Umweltforschung mbH (GSF), München / H. Moser. - Tritium-helium-3 dating of natural waters / W. Weiss ; W. J. Jenkins. - Ergebnisse von Langzeit-Tritium- und 14C-Grundwasseruntersuchungen / K. Fröhlich ; H. Jordan ; D. Hebert ; W. Tischer. - Breitengradabhängige Deuteriumvariationen im atmospärischen Wasserdampf des Atlantiks / P. Kowski ; G. Strauch ; H. Schütze. - Isotope fractionation due to evaporation from sand dunes / K. O. Münnich ; C. Sonntag ; D. Christmann ; G. Thoma. - Autorenregister.
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  • 75
    Monograph available for loan
    Monograph available for loan
    München [u.a.] : Hanser
    Call number: MOP 46332 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 308 S.
    Edition: Rev. dt. Ausg. unter Berücks. d. Unterlagen von Standard-UNIX / von A.-T. Schreiner u. T. Mandry
    ISBN: 3446139753
    Series Statement: PC professionell
    Uniform Title: UNIX - the book
    Language: German
    Note: Inhaltsverzeichnis: Vorwort. - Vorwort zur deutschen Ausgabe. - 1 Starthilfen. - 1.1 Einleitung. - 1.2 Die Anmeldung. - 1.3 Ein einfaches Kommando. - 1.4 Die „Shell". - 1.5 Das Handbuch. - 1.6 Das Terminal. - 1.7 Ihr Paßwort. - 1.8 Fragen. - 2 Dateien und einfache Kommandos. - 2.1 Dateien. - 2.1.1 Was ist ein Name?. - 2.2 Das Dateisystem und die Kataloge. - 2.3 Kataloge auflisten. - 2.4 Erzeugen und Verändern von Katalogen. - 2.5 Schützen Sie Ihre Privatsphäre (Dateischutz). - 2.6 Standard-Ein-und Ausgabe und ihre Umlenkung. - 2.7 Dateien und Kataloge entfernen. - 2.8 Dateien verlagern. - 2.9 Pipelines und Filter. - 2.10 Kommandoablauf im Hintergrund. - Kommando Übersicht. - Shell-Programmierung. - 2.11 Generierung von Dateinamen und Mustererkennung. - 2.12 Shell-Variablen. - 2.13 Shell-Prozeduren. - 2.13.1 Argumente in Shell-Prozeduren. - 2.14 Shell-Programmierung: Ablaufkontrolle. - 2.14.1 „for". - 2.14.2 „case". - 2.14.3 „if". - 2.14.4 „while" und „until". - 2.15 Zusammenfassung. - Eine Version des „man" Kommandos. - 2.16 Fragen. - 3 Der Editor. - 3.1 Einige willkürliche Gedanken. - 3.2 Der UNIX Editor. - 3.3 Verwendung des Editors „ed". - 3.4 Start von „ed". - 3.5 Das Kommando „append". - 3.6 Einige spezielle Adressen. - 3.7 Vorläufige Zusammenfassung. - 3.8 Das Kommando „substitute". - 3.9 Kontextsuche. - 3.10 Das Kommando „change". - 3.11 Das Kommando „move". - 3.12 Zeichen mit Sonderbedeutung. - 3.12.1 Der Pfeil "A". - 3.12.2 Der Dollar „$". - 3.12.3 Der Punkt ".". - 3.12.4 Der Stern "*". - 3.12.5 Die Klammern „[" und „]". - 3.12.6 Das Zeichen „&". - 3.13 Die Kommandos „global" und „veto". - 3.14 Zusammenfassung. - 4 C. - 4.1 Einführung. - 4.2 Einleitende Bemerkungen. - 4.3 Starthilfen. - 4.4 Zeichenketten. - 4.5 Datentypen. - 4.6 Variablen und Kommentare. - 4.7 Inkrementieren und Dekrementieren. - 4.8 Kontrollstrukturen. - 4.8.1 Die „for" Anweisung. - 4.8.2 Die „while" Anweisung. - 4.8.3 Die „do" Anweisung. - 4.8.4 Die „continue" und „break" Anweisungen. - 4.8.5 Die „if" Anweisung. - 4.8.6 Die „switch" Anweisung. - 4.9 Ausdrücke. - 4.9.1 Vergleiche. - 4.9.2 Bitmanipulationen. - 4.9.3 Logische Verknüpfungen. - 4.10 Zuweisungen. - 4.10.1 Zuweisungen als Anweisungen. - 4.10.2 Werte von Zuweisungen. - 4.10.3 Konstanten. - 4.11 Datenstrukturen. - 4.11.1 Vektoren. - 4.11.2 Strukturen. - 4.12 Zeiger. - 4.12.1 Die Verwendung von Zeigern. - 4.13 Funktionen. - 4.13.1 Funktionen vereinbaren. - 4.13.2 Argumente von C Programmen. - 4.13.3 Was steckt hinter einem Argument?. - 4.14 Die Standard-E/A-Bücherei. - 4.14.1 Lese-und Schreiboperationen. - 4.14.2 Dateiverbindungen. - 4.15 Das Ende!. - 5 Das Dateisystem von UNIX. - 5.1 Kataloge. - 5.2 Radnamen. - 5.3 „Inodes". - 5.4 Die Struktur des Dateisystems. - 5.5 Gerätedateien. - 5.6 Dateischutz. - 5.7 Nichtresidente Dateisysteme. - 5.8 Dateigröße und Dateiblockierung. - 5.9 Fragen. - 6 Software-Werkzeuge. - 6.1 Was ist ein Software-Werkzeug. - 6.2 Filter. - 6.3 Der Werkzeugkasten. - 6.4 „pr". - 6.5 Namen von Kommandos. - 6.6 „grep" und Co. - 6.7 „sort". - 6.8 „awk". - 6.9 „make". - 6.10 Zusammenfassung. - 7 Textverarbeitung. - 7.1 Einfacher Text. - 7.2 Der Gebrauch des Formatierers. - 7.2.1 Einführung. - 7.2.2 Terminologie. - 7.3 Kommandos. - 7.3.1 Absätze. - 7.3.2 Beispiele. - 7.3.3 Abmessungen der Seite ändern. - 7.4 Makros. - 7.4.1 Was ist ein Makro?. - 7.4.2 Makropakete. - 7.4.3 Andere Quellen einfügen. - 7.4.4 Einfache Makros. - 7.4.5 Makros mit Argumenten. - 7.4.6 Fluchtsymbole, das gefürchtete Zeichen \. - 7.5 Seitentitel. - 7.5.1 Titelmakros "pflanzen". - 7.5.2 Titelmakro Beispiele. - 7.6 Andere Möglichkeiten. - 7.6.1 Register. - 7.6.2 Strings. - 7.6.3 Deutsche Probleme. - 7.6.4 Ablenkungen. - 7.6.4.1 Formatierten Text umlenken. - 7.6.4.2 Transparente Zeilen. - 7.6.5 Bedingte Eingabe. - 7.7 Wie man Makros schreiben sollte. - 7.8 Ausblick. - 8 Prozesse. - 8.1 Allgemeines. - 8.2 Die Ausführung eines Programms. - 8.3 Ohne doppelten Boden. - 8.3.1 „fork". - 8.3.2 Fehler bei Systemaufrufen. - 8.4 Privatbesitz. - 8.4.1 Dateiverbindungen. - 8.4.2 Benutzeridentifikation. - 8.5 Verschiedenes. - 8.5.1 Der Arbeitskatalog. - 8.5.2 Die Benutzermaske. - 8.6 „exec". - 8.7 Signale. - 8.8 Eingabe und Ausgabe. - 8.8.1 „open", „dose" und „creat". - 8.8.2 Lesen und Schreiben. - 8.8.3 „ioctl". - 8.9 Zusammenfassung. - 9 Büchereien. - 9.1 Der Preprozessor. - 9.1.1 Textersatz. - 9.1.2 Bedingte Übersetzung. - 9.1.3 Einfügen von Dateien. - 9.1.4 Getrennte Übersetzung. - 9.2 Der Lader. - 9.3 Standard-Eingabe und Ausgabe. - 9.4 Mathematische Funktionen. - 9.5 Verschiedenes. - 9.6. Spezielle Büchereien. - 9.6.1 Arithmetik mit höherer Genauigkeit. - 9.6.2 Grafik-Routinen. - 9.7 Der Bücherei-Manager „ar". - 10 Pflege. - 10.1 Einführung. - 10.2 UNIX starten und anhalten. - 10.2.1 UNIX starten. - 10.2.2 ,,/etc/init". - 10.2.3 UNIX anhalten. - 10.3 „getty" und ,,/etc/ttys". - 10.3.1 Die Prozeßgruppe. - 10.3.2 Entschuldigungen. - 10.4 Überprüfung der Dateihierarchie. - 10.4.1 Die Datenstruktur. - 10.4.2 Algorithmen zur Kontrolle. - 10.4.3 „fsck" und andere Programme. - 10.4.4 Initialisierung. - 10.5 Datensicherung. - 10.5.1 Programme für die Datensicherung. - 10.5.2 „dump". - 10.5.3 „restor". - 10.5.4 „tar". - 10.6 Gerätedateien („Special files"). - 10.6.1 Allgemeine Eigenschaften. - 10.6.2 „mount". - 10.7 Routineaufgaben. - 10.7.1 „Ipr" — das Druckprogramm. - 10.8 Neue Benutzer. - Anhang A Allgemeine Kommandos. - Anhang B Der Editor. - B.1 Aufruf und Einschränkungen. - B.2 Kurze Liste der Kommandos. - B.3 Kommandobeschreibungen. - B.4 Begriffe. - B.4.1 Suchmuster „p". - B.4.2 Ersatztext „t". - B.4.3 „\(" und ,,\)" im Suchmuster. - B.4.4 Adresse einer Zeile „I". - B.4.5 Adressen eines Bereichs „r". - Anhange Shell-Syntax. - C.1 Kommandos. - C.2 Umlenkung der Ein-und Ausgabe. - C.3 Hintergrundkommandos. - C.4 Pipelines. - C.5 Generierung von Dateinamen (Mustererkennung). - C.6 Ersatzdarstellungen. - C.7 Shell-Prozeduren. - C.8 Shell-Parameter. - C.9 Hier-Dokumente. - C.10 Shell-Variablen. - C.11 Kontrollstrukturen. - C.12 Textersatz durch Kommandos. - C.13 Shell-Grammatik. - C. 14 Metazeichen und reservierte Worte. - Anhang D Standard-Büchereien. - D.1 Systemaufrufe. - D.2 Standard-E/A-Bücherei. - D.2.1 Eröffnen einer Dateiverbindung. - D.2.2 Informationen. - D.2.3 Transferoperationen. - D. 2.4 Formatierte Ausgabe und Eingabe. - D.2.5 Prozeßkommunikation. - D.2.6 Positionierung und Puffer. - D.2.7 Lösen einer Dateiverbindung. - D.3 Mathematikbücherei. - D.3.1 Bessel Funktionen. - D.3.2 Trigonometrische Funktionen. - D.3.3 Hyperbolische Funktionen. - D.3.4 Geometrische Funktionen. - D.3.5 Andere Funktionen. - D.4 Verschiedene Hilfsroutinen. - D.5 String-Funktionen. - D.6 Spezielle Büchereien. - D.6.1 Höhere Genauigkeit. - D.6.2 Grafik. - D.6.3 Datenbasis. - Anhang E Systemaufrufe. - UNIX Systemaufrufe. - Fehler. - Signale. - Anhang F „ovp" - Ein Dienstprogramm in C. - Anhang Beantwortung der Fragen. - Fragen im Kapitel 1. - Fragen im Kapitel 2. - Fragen in Kapitel 5. - Anhang Literaturverweise.
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  • 76
    Call number: MOP 46237
    Type of Medium: Monograph available for loan
    Pages: 138 S. , Kt.
    Language: German
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  • 77
    Monograph available for loan
    Monograph available for loan
    Washington, D.C. : American Geophysical Union
    Associated volumes
    Call number: M 17.90361/1
    In: Chinese Geophysics
    Type of Medium: Monograph available for loan
    Pages: Seiten 1-230 , Illustrationen
    Series Statement: Chinese Geophysics Volume 1, Number 1
    Language: English
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  • 78
    Monograph available for loan
    Monograph available for loan
    Warszawa : Państwowe Wydawnictwo Naukowe
    Call number: AWI P6-93-0291
    Type of Medium: Monograph available for loan
    Pages: 224 Seiten , Illustrationen, graphische Darstellungen
    ISBN: 83-01-01231-5
    Series Statement: Biblioteka Problemów 252
    Language: Polish
    Note: In polnischer Sprache
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  • 79
    Call number: ZSP-SCAR-570-6
    In: Antarctic Research Report to SCAR, No. 6
    Type of Medium: Series available for loan
    Pages: 38 Seiten
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 6
    Language: English
    Note: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 83-October 84. - II. Planned Activities, October 84-October 85. - References.
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  • 80
    Call number: ZSP-SCAR-570-5
    In: National Antarctic Research Report to SCAR, No. 5
    Type of Medium: Series available for loan
    Pages: 35 Seiten
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 5
    Language: English
    Note: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 82-October 83. - II. Planned Activities, October 83-October 84. - References.
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  • 81
    Call number: ZSP-SCAR-570-1
    In: Report to SCAR on Antarctic research activities of Germany (FRG), 1
    Type of Medium: Series available for loan
    Pages: 21 Seiten
    ISSN: 0179-0072
    Series Statement: Report to SCAR on Antarctic research activities of Germany (FRG) 1
    Language: English
    Note: Contents: Membership of the National Committee on Antarctic Research of the Federal Republic of Germany. - Introduction. - Station. - Field Activities 1974-1979. - Planned Activities 1979/80. - References.
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  • 82
    Monograph available for loan
    Monograph available for loan
    [Erscheinungsort nicht ermittelbar] : Department of Science and Technology, Antarctic Division Australia
    Associated volumes
    Call number: AWI P2-86-0256
    In: Antarctic Telecommunications Guidance Manual, Volume 1
    Type of Medium: Monograph available for loan
    Pages: Diverse Seitenangaben (ca. 50 Seiten)
    Language: English
    Note: TABLE OF CONTENTS: Distribution List. - List of acronyms and abbreviations used. - Record of Amendments. - Foreword to 1st Edition. - Foreword to 2nd Edition. - HISTORY AND DEVELOPMENTS OF ANTARCTIC COMMUNICATIONS. - CONSIDERATION OF TELECOMMUNICATIONS BY SCAR AND ANTARCTIC TREATY CONSULTATIVE PARTIES. - OPERATION OF INDIVIDUAL NATIONS' NETWORKS. - Australia's Antarctic Communications. - Japan's Antarctic communications. - UK Antarctic communications. - US Antarctic communications. - ANTARCTIC TREATY RESOLUTIONS ON ANTARCTIC COMMUNICATIONS. - WMO RESOLUTIONS AND PRINCIPLES ON ANTARCTIC COMMUNICATIONS. - Introduction. - Engineering principles of the GTS. - Functions and responsibilities of Meteorological Telecommunications Centres. - Characteristics of the networks of the GTS. - Operational principles of the GTS. - The transmission of meteorological data an the GTS. - Collection and transmission of meteorological data. - Data processing. - Telecommunications system. - Weather reporting by traverse parties. - Automatic weather station in the Antarctic. - AIREP reports. - Mobile ship stations. - OTHER RELEVANT RECOMMENDATIONS AND RESOLUTIONS. - APPENDIXES. - APPENDIX I. - Manual an the Global Data Processing System, Regional Aspects, the Antarctic. - APPENDIX II. - Network of CLIMAT and CLIMAT TEMP reporting stations in the Antarctic. - APPENDIX III. - Results of the monitoring of Antarctic data reception carried out during the period 12-15 March 1982. - APPENDIX IV. - Existing links for the daily international exchange of meteorological data within the Antarctic. - APPENDIX V. - Principal routes by which Antarctic meteorological data enters the GTS. - APPENDIX VI. - List of Antarctic stations and the routing of their meteorological data to the GTS.
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  • 83
    Call number: M 18.91936
    Type of Medium: Dissertations
    Pages: 124 Seiten , graphische Darstellungen
    Language: German
    Note: Dissertation,Technische Hochschule Aachen, Fakultät für Bergbau und Hüttenwesen,1979
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  • 84
    Call number: ZSP-980-26
    In: ZfI-Mitteilungen, Nr. 26
    Type of Medium: Series available for loan
    Pages: 163 Seiten
    Edition: als Manuskript gedruckt
    ISSN: 0323-8776
    Series Statement: ZFI-Mitteilungen 26
    Language: German , Russian
    Note: Inhaltsverzeichnis: Über die Verbreitung stabiler Isotope in der Erdkruste / K. Wetzel. - Carbon isotope fractionation in the isotopic exchange reaction between gaseous carbon dioxide and bicarbonate ion / J. Szaran, W. Zuk, J. Serafin. - Zur Berechnung von Isotopieeffekten von Transportkoeffizienten in binären Mischungen mittlerer Dichte / R. Der, H. G. Deuretzbacher, R. Haberlandt, J. Heybey. - Untersuchungen zur Diffusion isotopischer Methanspezies / H. Schütze. - Mathematische Modellierung von Trennprozessen bei der Bildung und Zerstörung von Erdgasakkumulationen / W.-D Hermichen, H. Schütze. - Geophysikalisch-montanwissenschaftliche Anwendungen der Radonexhalation des Bodens / W. Stolz, H. Gast. - Zur Problematik offener Systeme bei radioaktiven Altersbestimmungen / G. Kaiser, J. Pilot, M. Schlichting. - Die Anwendung von Quarz in der Rb-Sr-Geochronologie / W. S. Lepin, M. N. Maslowskaja, L. W. Pawlowa, T. W. Jegorowa, A. I. Melnikow, S. R. Brandt. - Isotopische Zusammensetzung des Strontiums in Mineralen aus Kimberliten / M. N. Maslowskaja, W. S. Lepin, S. I. Kostrowizky, T. I. Kolosnizina, L. W. Pawlowa, B. M. Wladimirow, S. B. Brandt. - Rb-Sr-Datierungen in Südbezirken der DDR / G. Hartmann, T. Kaemmel, G. Tischendorf, S. Lächelt, H.-J. Dietze, M. Habedank. - Sr- und O-Isotopenuntersuchungen an basischen Magmatiten der DDR / L. Pfeiffer, J. Pilot, H. J. Rösler, M. Schlichting, C.-D. Werner. - Molybdän-Isotopenanalyse an Mineralen / S. Becker, H.-J. Dietze. - Isotopische Zusammensetzung des Bleis von Sulfiden aus Molybdän-Kupfer-Lagerstätten der Mongolei (russ.) / W. I. Sotnikow, W. A. Chalilow, A. P. Bersina, M. Shamsran. - An inexpensive device for digitalization of an isotope ratio mass-spectrometer / S. Hałas, Z. Skorzyński. - Sauerstoffisotopenanalyse karbonathaltiger Gesteine (russ.) / W. I. Ustinow, W. A. Grinenko. - Methode zur Bestimmung natürlicher 15N-Häufigkeiten an geringen Mengen medizinisch-biologischen Materials / H. Faust, H. Bornhak, K. Hirschberg, H. Birkenfeld. - Die N-15-Bestimmung am NOI-5 mit verringerter Probemenge / K. Mauersberger. - Die Tritium-Bestimmung von low-level-Proben im Flüssigkeitsszintillationsspektrometer / B. Kiehl. - Bestimmung von natürlichen C-14-Gehalten in Umweltproben / R. Trettin, A. Hiller. - Environmental isotopes in geothermal water investigation / P. Noto, S. Nuti, C. Panichi, R. Gonfiantini. - Umweltisotope als Hilfsmittel bei hydrologischen Untersuchungen / H. Moser. - Tritium-helium-3 dating of natural waters / W. Weiss, W. Jenkins. - Ergebnisse von Langzeit-Tritium- und 14C-Grundwasseruntersuchungen / K. Fröhlich, H. Jordan, D. Hebert. - Tritium- und Deuteriumvariationen in der Schneedecke der Zentralantarktis (1875-1970) (russ.) / A. L. Dewirz, W. D. Wilenski, W. A. Grinenko. - Breitengradabhängige Deuteriumvariationen im atmosphärischen Wasserdampf des Atlantiks / P. Kowski, G. Strauch, H. Schütze. - Isotope fractionation due to evaporation from sand dunes / K. O. Münnich, C. Sonntag, D. Christmann, G. Thoma. - Neue Ergebnisse zum Kohlenstoff-Isotopenaustausch im System CH4-CO2 / P. Harting, I. Maaß. - Über die Ursachen der Temperaturüberschreitung bei der CO2-CH4-Geothermometrie in Geothermalgebieten (russ.) / L. K. Gutzalo. - Modelluntersuchungen zur Isotopenfraktionierung des Stickstoffs während der Metamorphose von Gesteinen / H.-M. Nitzsche, K. Mühle, A. Krause, G. Schlegel, K. Wetzel. - Variationen der Stickstoffisotope in regionalmetamorphen Gesteinen / D. Haendel, K. Mühle, G. Stiehl, U. Wand. - Über die isotope Zusammensetzung des Stickstoffs in magmatischen und metamorphen Gesteinen / W. F. Wolynez, D. Haendel, G. Stiehl. - Die Sauerstoffisotopenzusammensetzung von granitischen Gesteinen und Mineralen des Schwarzwaldes / J. Hoefs. - A new high-temperature 18O thermometer / J. R. O'Neil, T. K. Kyser. - Einfluß regressiver Effekte auf die Verteilung der Sauerstoffisotope bei Hochtemperaturprozessen (russ.) / D. P. Krylow, M. E. Salje, D. P. Winogradow. - Fraktionierung der Sauerstoffisotope in Karbonatmineralen bei der Kontaktmetamorphose (russ.) / M. E. Salje, L. M. Gawrilowa. - The stable isotope geochemistry of ore deposits / J. R. O'Neil. - Besonderheiten der isotopischen Zusammensetzung des Kohlenstoffs in Kimberlitröhren Jakutiens (russ.) / G. P. Mamtschur. - Kohlenstoff-Isotopenuntersuchungen an graphitischer Substanz von Metaschwarzschiefern des Erzgebirges und anderer Gebiete der DDR / U. Wand, G. Stiehl, I. Winkler, P. Ossenkopf. - Zu einigen isotopengeochemischen Aspekten bei der Modellierung des globalen Sauerstoffkreislaufes / G. Weise, W.-D. Hermichen. - Über die isotopische Zusammensetzung des karbonatischen und organischen Kohlenstoffs in der Erdgeschichte (russ.) / A. A. Iwljew. - Über die Isotopenzusammensetzung des Schwefels in sedimentären Sulfiden und Sulfaten / K. Wetzel. - The sulfur contents and isotopes in ultramafic and basic rocks / L. N. Grinenko. - Zur Schwefelisotopengeochemie basaltischer Gesteine / H.-W. Hubberten, H. Puchelt. - Ein dynamisches Modell der Bleiisotopenevolution in der Erdkruste und im Erdmantel (russ.) / B. G. Amow. - Entwicklung genetischer Modelle für permische Erdgase in der VR Polen unter Nutzung von Isotopendaten / W.-D. Hermichen, F. May, E. P. Müller, H. Schütze. - Die isotopische Zusammensetzung des Kohlenstoffs von Lipiden aus Bodensedimenten des Atlantiks (russ.) / I. P. Schadski, G. N. Baturin, J. I. Grintschenko. - Kohlenstoff- und Wasserstoffisotopenvariationen in Methan aus Erdgasen und in Methan aus Crackreaktionen / A. Runge, U. Wand. - Die isotopische Zusammensetzung des Schwefels, Kohlenstoffs und Wasserstoffs als Funktion der Evolution des Lebens auf der Erde (russ.) / S. P. Maksimow, R. G. Pankina, W. L. Mechtijewa. - Isotope Zusammensetzung des Kohlenstoffs von CO2 in Kohlenwasserstoffakkumulationen unter dem Aspekt seiner Genese (russ.) / R. G. Pankina, W. L. Mechtijewa, S. M. Gurijewa. - Die Isotopenzusammensetzung von rezenten und fossilen Eierschalen unter besonderer Berücksichtigung von Dinosauriereierschalen / J. Hoefs. - Isotopische Zusammensetzung des Kohlenstoffs als ein Kriterium der Typisierung von Erdölen des Kama-Gebietes (russ.) / A. Z. Koblowa, M. G. Frik, W. M. Proworow. - Die isotopische Zusammensetzung des Kohlenstoffs als Fazieskriterium für organische Substanzen / I. Maaß. - Die isotopische Zusammensetzung des Stickstoffs in natürlichen Diamanten - erste Ergebnisse / U. Wand, K. Mühle, H.-M. Nitzsche, K. Wetzel. - Über einige Isotopieeffekte des Stickstoffs in der Bodenzone / H. Hübner. - Besonderheiten der Kohlenstoff-Isotopenverteilung in Erdölen und Kondensaten bei der Migration (nach experimentellen Daten) (russ.) / T. A. Botnewa, A. G. Miljoschina, W. S. Fonin. - Beziehungen zwischen δ18O-Werten und stofflich-strukturellen Parametern von Silikaten /K. Wetzel, D. Mißbach, K. Mühle. - Vulkanogenes Kohlendioxid: Aussagen zur Herkunft aufgrund von Isotopenuntersuchungen / H. Puchelt, H.-W. Hubberten. - Zur Druckabhängigkeit des Isotopieeffektes bei Verteilungsgleichgewichten - experimentelle und theoretische Untersuchungen an Modellsystemen / J. Heybey, P. Harting. - Zur Druck- und Temperaturabhängigkeit der thermodynamischen Löslichkeits-Isotopieeffekte von Methan und Stickstoff in Wasser / P. Harting, H. Schütze. - Die isotopische Zusammensetzung des Sulfatschwefels in Flüssen der UdSSR (russ.) / A. L. Rabinowitsch, W. A. Grinenko. - Zum CO2-Austausch zwischen der nördlichen und der südlichen Hemisphäre / G. Weise, K. Wetzel. - Isotopenuntersuchungen an Sulfiden in Braunkohlen / H. J. Rösler, H. Calliess, J. Pilot. - Die isotopische Zusammensetzung des Schwefels von Sulfiden und Baryten der Lagerstättte Baschkischlag und ihre physikochemischen Bildungsbedingungen (russ.) / N. M. Sairi, P. S. Gawriljuk, A. A. Magribi, W. P. Strishow, W. A. Grinenko. - Quellen des Schwefels und Kohlenstoffs in einigen Imprägnations- und Quarz-S , Zum Teil in kyrillischer Schrift.
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  • 85
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/18
    In: CRREL Report, 83-18
    Description / Table of Contents: An evaluation of an impulse radar system for detecting cavities under concrete pavement is discussed, and field results are presented. It was found that a dual antenna mode of surveying was ideal for void detection. In this mode one antenna operated in a transceive mode and a second, offset from the first, operated in a receive-only mode. This arrangement allowed a refraction-type profile survey to be performed, which enabled subpavement voids to be easily detected. Field trails were held at Plattsburgh Air Force Base, where 28 cavities were detected and mapped. Drilling of holes verified that a cavity existed and allowed cavity depth to be measured. The cavities varied from 1.5 in. to 23 in, depth and were up to 20 ft. long.
    Type of Medium: Series available for loan
    Pages: 49 Seiten , Illustrationen
    Series Statement: CRREL Report 83-18
    Language: English
    Note: CONTENTS Abstract Preface Introduction Plattsburgh Air Force Base Radar sounding system Survey procedure Cavity inspection Radar cavity detection test Radar profile results Falling-weight deflectometer tests Discussion and conclusions Literature cited
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  • 86
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/12
    In: CRREL Report, 83-12
    Description / Table of Contents: This paper documents the development and verification of two finite difference models that solve the general two-dimensional form of the heat conduction equation, using the alternative-direction implicit method. Both can handle convective, constant flux, specified temperature and semi-infinite boundaries. The conducting medium may be composed of many materials. The first program, ADI, solves for the case where no change of state occurs. ADIPC solves for case where a freeze/thaw change of phase may occur, using the apparent heat capacity method. Both models are verified by comparison to analytical results.
    Type of Medium: Series available for loan
    Pages: 74 Seiten , Illustrationen
    Series Statement: CRREL Report 83-12
    Language: English
    Note: CONTENTS Abstract Preface Introduction Finite differences applied to heat transfer Heat conduction equation Boundary conditions Phase change Computer program ADDATA, the data subroutine TRIDIG, the matrix solver ISOTHM, the isotherm finider ADI, main program ADEPC, main program Verification of ADI Comparison of ADI with analytical results Comparison of ADI with experimental results Verification of ADIPC Comparison of ADIPC with analytical results-the Neumann solution Comparison of ADIPC with analytical results-two-dimensional phase change verification User instruction for ADI User instruction for ADIPC Conclusions Literature cited Appendix A. Program INFSUM and sample input and output for program ADI Appendix B. Program ADIPC and sample input and output
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  • 87
    Call number: ZSP-201-83/14
    In: CRREL Report, 83-14
    Description / Table of Contents: An analysis of ice fracture that incorporates dislocation mechanics and linear elastic fracture mechanics is discussed. The derived relationships predict a brittle to ductile transition in polycrystalline ice under tension with a Hall-Petch type dependence of brittle fracture strength on grain size. A uniaxial tensile testing technique, including specimen preparation and loading system design was developed and employed to verify the model. The tensile strength of ice in purely brittle fracture was found to vary with the square root of the reciprocal of grain size, supporting the relationship that the theory suggests. The inherent strength of the ice lattice and the Hall-Petch slope are evaluated and findings discussed in relation to previous results. Monitoring of acoustic emissions was incorporated in the tests, providing insights into the process of microfracture during ice deformation.
    Type of Medium: Series available for loan
    Pages: 43 Seiten , Illustrationen
    Series Statement: CRREL Report 83-14
    Language: English
    Note: CONTENTS Abstract Preface Introduction Background Development of testing technique Test specimens Tensile testing Compression testing Experimental results Tensile tests Compression tests Discussion Conclusions Suggestions for further work Literature cited Appendix A: Additional information on seed grains Appendix B: Thin-sectioning procedure Appendix C: Displacement transducer calibration
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  • 88
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/13
    In: CRREL Report, 83-13
    Description / Table of Contents: A review on past experimental and theoretical work indicates a need for additional experimentation to characterize the response of snow to inelastic pressure waves. Pressure data from previously conducted explosion tests are analyzed to estimate the elastic limit of snow of 400 -kg/cu m density to be about 36 kPa. This pressure corresponds to a scaled distance of 1.6 m/cu.rt.kg for charges fired beneath the surface of the snow, and to a scaled distance of 1.2 m/cu.rt.kg for charges fired in the air. The effects of a snow cover on the method of clearing a minefield by using an explosive charge fired in the air above the snow surface are also discussed and recommendations are given for further work in this area. Explosive pressure data are used to estimate the maximum effective scaled radius for detonating buried mines at shallow depth to be 0.8 m/cu.rt.kg. Fuel-air explosive will increase this effective radius significantly because of the increase in the size of the source region.
    Type of Medium: Series available for loan
    Pages: 33 Seiten , Illustrationen
    Series Statement: CRREL Report 83-13
    Language: English
    Note: CONTENTS Abstract Preface List of symbols Introduction Objectives Background Problems in describing the response of snow to an applied stress Methods of determining the dynamic behavior of materials Review of previous studies on snow Experimental measurements on snow Summary of snow experiments Theoretical studies Confirmation of the theory Discussion Applications Recommendations Summary Literature cited Appendix A. Selected data from Wisotski and Snyder (1966) Appendix B. Pressure data from Livingston (1964)
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  • 89
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/16
    In: CRREL Report, 83-16
    Description / Table of Contents: The presence of snow on the ground can impose limitations on the mobility of wheeled and tracked vehicles. Snow depth and density are the two most easily measured snow properties that can be related to mobility over snow. Existing models of snowpack accumulation and ablation processes and models of internal snowpack structure were examined to determine if a model of the snowpack can be developed for use in predicting the snow parameters that affect mobility. Simple models, such as temperature index models, do not provide sufficient snowpack details, and the more detailed models require too many measured inputs. Components of the various models were selected from a basis of a snowpack model for predicting snow properties related to mobility over snow. Methods of obtaining the input data from some components are suggested, and areas where more development is needed are described.
    Type of Medium: Series available for loan
    Pages: 34 Seiten , Illustrationen
    Series Statement: CRREL Report 83-16
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Conversion of metric units Introduction Review of existing models Accumulation models Ablation models Using existing models for studying mobility Proposed snowpack model for mobility studies Model components Implementation of the model Developing input data Conclusions Literature cited
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  • 90
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/17
    In: CRREL Report, 83-17
    Description / Table of Contents: A sea ice model was applied to the East Greenland Sea to examine a 60-day ice advance period beginning 1 October 1979. This investigation compares model results using driving geostrophic wind fields derived from three sources. Winds calculated from sea-level pressures obtained from the National Weather Service's operational analysis system resulted in strong velocities concentrated in a narrow band adjacent to the Greenland coast, with moderate velocities elsewhere. The model showed excessive ice transport and thickness build-ups in the coastal region. The extreme pressure gradient parallel to the coast resulted partially from a pressure reduction procedure that was applied to the terrain-following sigma coordinate system to obtain sea-level pressures. Additional sea-level pressure fields were obtained from an independent optimal interpolation analysis that merged FGGE buoys drifting in the Arctic basin with high latitude land stations and from manual digitization of the NWS hand-analyzed Northern Hemisphere Surface Charts. Modeling results using winds from both of these fields agreed favorably.
    Type of Medium: Series available for loan
    Pages: 19 Seiten , Illustrationen
    Series Statement: CRREL Report 83-17
    Language: English
    Note: CONTENTS Abstract Preface Introduction Description of study Model results The problem Conclusions Literature cited
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  • 91
    Call number: ZSP-201-83/22
    In: CRREL Report, 83-22
    Description / Table of Contents: A new experimental method for measuring the soil-water diffusivity of frozen soil under isothermal conditions is introduced. The theoretical justification of the method is presented and the feasibility of the method is demonstrated by experiments conducted using marine-deposited clay. The measured values of the soil-water diffusivity are found comparable to reported experimental data.
    Type of Medium: Series available for loan
    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 83-22
    Language: English
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  • 92
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/11
    In: CRREL Report, 83-11
    Description / Table of Contents: Investigations of ground radar performance over thawed and seasonally frozen silts, and sands and gravels containing artificial and natural reflectors were carried out in Alaska. The radar emitted 5-10 ns pulses, the center frequency of which was approximately 150 MHz. The artificial reflectors were metal sheets and discs and the natural reflectors were the groundwater table and interfaces between frozen and thawed material. The water table was profiled at three sites where the subsurface material was coarse-grained alluvium. Dielectric constants of 16 to 18 were measured for the thawed silts, 6 to 7 for the frozen silts and 3 to 9 for the sands and gravels. Signal penetration in the thawed high moisture content silts may be achieved only by use of a lower frequency radar, whereas in the sands and gravels greater depths may be detected with more sophisticated signal processing.
    Type of Medium: Series available for loan
    Pages: 16 Seiten , Illustrationen
    Series Statement: CRREL Report 83-11
    Language: English
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  • 93
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/26
    In: CRREL Report, 83-26
    Description / Table of Contents: Ice accreted on high-speed rotors operating in supercooled fog can be thrown off by centrifugal force, creating severe unbalance and dangerous projectiles. A simple force balance analysis indicates that the strength of accreted ice and its adhesive strength can be obtained by measuring the thickness of the accretion, the location of the separation, the rotor speed, and the density. Such an analysis was applied to field and laboratory observations of self-shedding events. The results agree reasonably well with other observations.
    Type of Medium: Series available for loan
    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 83-26
    Language: English
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  • 94
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/23
    In: CRREL Report, 83-23
    Description / Table of Contents: The problems associated with measuring stresses in ice are reviewed. Theory and laboratory test results are then presented for a stiff cylindrical sensor made of steel that is designed to measure ice stresses in a biaxial stress field. Loading tests on freshwater and saline ice blocks containing the biaxial ice stress sensor indicate that the sensor has a resolution of 20 kPa and an accuracy of better than 15% under a variety of uniaxial and biaxial loading conditions. Principal stress directions can also be determined within 5 degrees. The biaxial ice stress sensor is not significantly affected by variations in the ice elastic modulus, ice creep or differential thermal expansion between the ice and gauge. The sensor also has a low temperature sensitivity (5 kPa/deg C).
    Type of Medium: Series available for loan
    Pages: 38 Seiten , Illustrationen
    Series Statement: CRREL Report 83-23
    Language: English
    Note: CONTENTS Abstract Preface Introduction Previous work Stress measurements Design considerations Stress sensors Biaxial ice stress sensor Biaxial stress sensor theory Gauge deformation Stresses associated with cylindrical sensors Determination of ice stresses Gauge calibration Evaluation of the biaxial ice stress sensor Temperature sensitivity Biaxial loading test equipment Biaxial loading test results Differential thermal expansion Long-term drift Discussion of test results Conclusions Literature cited
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  • 95
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/19
    In: CRREL Report, 84-19
    Description / Table of Contents: In this study a method for making long-range forecasts of freeze-up dates in rivers is developed. The method requires the initial water temperature at an upstream station, the long-range air temperature forecast, the predicted mean flow velocity in the river reach, and water temperature response parameters. The water temperature response parameters can be either estimated from the surface heat exchange coefficient and the average flow depth or determined empirically from recorded air and water temperature data. The method is applied to the St. Lawrence River between Kingston, Ontario, and Massena, New York, and is shown to be capable of accurately forecasting freeze-up. Originator-supplied keywords include: Ice formation, and River ice.
    Type of Medium: Series available for loan
    Pages: iii, 22 Seiten , Illustrationen
    Series Statement: CRREL Report 84-19
    Language: English
    Note: CONTENTS Abstract Preface Introduction Problem formulation Analytical treatment Application to the upper St. Lawrence River Summary Literature cited Appendix A: Basic program for St. Lawrence River freeze-up forecast
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  • 96
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/24
    In: CRREL Report, 84-24
    Description / Table of Contents: This report describes the growth characteristics and crystalline textures of urea ice sheets which are now used extensively in the Cold Regions Research and Engineering Lab. (CRREL) test basin for modeling sea ice. The aims of the report are to describe the different kinds of crystalline texture encountered in urea ice sheets and to show that even small variations in texture can drastically influence the mechanical behavior of urea ice sheets. Standard petrographic techniques for studying microstructure in thin sections were used on 24 urea ice sheets. These investigations entailed observations of the crystalline texture of the ice (including details of the subgrain structure), grain size measurements, and studies of the nature and extent of urea entrapment and drainage patterns in the ice. Increased knowledge of the factors controlling the crystalline characteristics of urea ice sheets has progressed to the point where test basin researchers at CRREL are now able to fabricate ice sheets with prescribed structures leading to predictable mechanical properties. Originators supplied keywords include: Sea ice, and Mechanical properties.
    Type of Medium: Series available for loan
    Pages: iv, 55 Seiten , Illustrationen
    Series Statement: CRREL Report 84-24
    Language: English
    Note: Contents: Abstract Preface Introduction Objectives Analytical techniques Procedures for growing urea ice sheets Analysis of the crystalline structure of urea ice Characteristics of urea ice Results and discussion Ice sheet no. 1 Ice sheet no. 2 Ice sheet no. 3 Ice sheet no. 4 Ice sheet no. 5 Ice sheet no. 6 Ice sheet no. 7 Ice sheet no. 8 Ice sheet no. 9 Ice sheet no. 10 Ice sheet no. 11 Ice sheet no. 12 Ice sheet no. 13 Ice sheet no. 14 Ice sheet no. 15 Ice sheet no. 16 Ice sheet no. 17 Ice sheet no. 18 Ice sheet no. 19 Ice sheet no. 20 Ice sheet no. 21 Ice sheet no. 22 Ice sheet no. 23 Ice sheet no. 24 Urea concentrations in test tank solution and ice Discussion and conclusions E/σf ratio Thickness of incubation layer Crystal properties Literature cited Appendix A: Thin sections of urea ice sheets
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  • 97
    Call number: AWI G9-19-92232
    Type of Medium: Monograph available for loan
    Pages: 28 Seiten
    Language: German
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  • 98
    Call number: M 18.91455
    Type of Medium: Monograph available for loan
    Pages: 449 S. : Ill., graph. Darst., Kt. , S. 159-608
    ISBN: 0006-6729
    Series Statement: Bollettino di geofisica teorica ed applicata 40, 3-4
    Note: Table of contents --- C. Morelli: The contributions of the International Gravimetric Commission (IGC) to global surface-gravity determinations // pp. 165-177 --- C Kotsakis and M. G. Sideris: Study of the gravity field spectrum in Canada in view of cm-geoid determination // pp. 179-188 --- S.D. Pagiatakis, D. Fraser, K. McEwen, A. K. Goodacre and M. Veronneau: Topographic mass density and gravimetric geoid modelling // pp. 189-194 --- H. Denker and I.N. Tziavos: Investigation of the Molodensky series terms for terrain reduced gravity field data // pp. 195-203 --- S.A. Benhamed Daho and S. Kahlouche: Gravimetry data validation in Algeria // pp. 205-210 --- M. Mojzeš and J. Janák: New gravimetric quasigeoid of Slovakia // pp. 211-217 --- I.N. Tziavos, R. Forsberg and M.G. Sideris : Marine gravity field recovery by combining satellite altimetry and shipborne gravimetry // pp. 219-226 --- G. Fotopopulos, C. Kotsakis and M.G. Sideris: Development and evaluation of a new Canadian geoid model // pp. 227-238 --- C. Jekeli: A further evaluation of the EG M96 geopotential model based on deflections of the vertical // pp. 239-243 --- N.K. Pavlis, C.M. Cox, E.C. Pavlis and F.G. Lemoine: Intercomparison and evaluation of some contemporary global geopotential models // pp. 245-254 --- J.C. Catalao and M.J. Sevilla: Comparison between EGM96 and FCUL96B tailored geopotential model for the north-east Atlantic // pp. 255-259 --- J. Kusche, K.H. Ilk and S. Rudolph: Two-step data analysis for future satellite gravity field solutions: a simulation study // pp. 261-266 --- C. Jekeli: An analysis of geopotential difference determination from satellite-to-satellite tracking // pp. 267-272 --- J. Verdun , R. Bayer , E. Klingelé , M. Cerniar , M. Cocard , A. Geiger and M. Halliday: The Alpine Swiss French Airborne Gravimetry Project (ASFAG Project) // pp. 273-276 --- A. Albertella, F. Migliaccio and F. Sansò: New simulations for the spaceborne gravimetry inversion // pp. 277-283 --- Ch. Reigber, P. Schwintzer and H. Lühr: The CHAMP geopotential mission // pp. 285-289 --- B.D. Tapley and C. Reigber: GRACE: a satellite-to-satellite tracking geopotential mapping mission // pp. 291-291 --- S. Bettadpur, J.R. Kim and B.D. Tapley: Results from simulations studies of the GRACE mission // pp. 293-293 --- M. Aguirre-Martinez and S. Cesare: GOCE mission concept, error derivation and performances // pp. 295-302 --- H. Oberndorfer, R. Orobantu, C. Gerlach, J. Muller, R. Rummel, N. Sneetuw, R. Koop, P. Visser, P. Hoyng, A. Selig and M. Smit: GOCE sensor combination and error analysis // pp. 303-307 --- G. Balmino, F. Perosanz, R. Rummel, N. Sneeuw and H. Sunkel: CHAMP, GRACE and GOCE: mission concepts and simulations // pp. 309-319 --- P. Touboul, E. Willemenot, B. Foulon and V. Josselin: Accelerometers for CHAMP, GRACE and GOCE space missions: synergy and evolution // pp. 321-327 --- Ch. Reigber, F. Barthelmes, H. Greiner-Mai, Th. Gruber, H. Jochmann and J. Wünsch: Temporal gravity field variations from oceanic, atmospheric and inner core mass redistributions and their sensitivity to new gravity missions CHAMP and GRACE // pp. 329-340 --- R. Barzaghi, A. Borghi, L. De Stefani, A. Piatti and G. Venuti: SST estimation using collocation: method refinements and seasonal variability // pp. 341-346 --- R. Blinken and K.R. Koch: Estimation of geoid and sea surface topography from satellite altimetry by the adjoint method // pp. 347-352 --- R. Devoti, V. Luceri, P. Rutigliano, C. Sciarretta and G. Bianco: Time series of low degree zonals obtained analyzing different geodetic satellites // pp. 353-358 --- N.K. Pavlis, C.M. Cox, Y.M. Wang and F.G. Lemoine: Further analyses towards the introduction of ocean circulation model information into geopotential solutions // pp. 359-367 --- O.B. Andersen, P. Knudsen, S. Kenyon and R. Trimmer: Recent improvement in the KMS global marine gravity field // pp. 369-377 --- T. Bašic and M. Brkic: The latest efforts in geoid determination in Croatia // pp. 379-386 --- M. Rentsch, Th. Gruber and M. Anzenhofer: A global grid of high-resolution gravity anomalies based on Geosat and ERS-1 altimetry // pp. 387-394 --- G. Rodríguez, M.J. Sevilla and C. De Toro: Crossover analysis in the Canary-Azores region of ERS-1 altimetric data // pp. 395-401 --- G. Tóth, J. Ádám, I.N. Tziavos and V.D. Andritsanos: Gravimetric geoid computations in Hungary and the sorrounding area // pp. 403-409 --- D. Arabelos, S.D. Spatalas, I.N. Tziavos, M.J. Sevilla, G. Rodriguez, C. De Toro, J. Catalao and J. Calvao: A new high resolution geoid for the Iberian Atlantic continental shelf area // pp. 411-419 --- D. Dreher, M.F. Lalancette and M. Maia: Roughness of the gravity and seafloor topography used to infer geodynamic settings // pp. 421-426 --- O.B. Andersen: Shallow water tidal determination from altimetry - the M4 constituent // pp. 427-437 --- P. Knudsen and O. Andersen: A global high resolution mean sea surface from multi mission satellite altimetry // pp. 439-443 --- P. Holota: A construction of Galerkin’ smatrix in quasi-geoid determination // pp. 445-450 --- M.G. Doufexopoulou and V.N. Pagounis: Investigation of raw variance and variability spectra from non gravimetric geoidal signals // pp. 451-460 --- G. Gerstbach: Inversion of vertical deflection data by the program GREMMO // pp. 461-468 --- C. Braitenberg and M. Zadro: Iterative 3D gravity inversion with integration of seismologic data // pp. 469-475 --- V. Baiocchi, M. Crespi and F. Riguzzi: Mean density map for the Italian region by GIS techniques // pp. 477-482 --- V. Josselin, E. Willemenot and P. Touboul: Digital electronics for electrostatic accelerometers interest for high resolution and in-orbit calibration // pp. 483-486 --- J.M. Brown, T.M. Niebauer and F.J. Klopping: Results from a new interferometric ballistic differential gravity meter // pp. 487-496 --- G. Berrino, G. Cerrutti, G. Corrado, P. De Maria and U. Riccardi: Gravity studies on active Italian volcanoes: a comparison between absolute and relative gravimetry // pp. 497-510 --- Y. Fukuda, T. Sato, Y. Tamura and Y. Aoyama: The effects of sea-surface height variations on the long-period gravity changes // pp. 511-517 --- M. Amalvict, J. Hinderer and J.P. Boy: A comparative analysis between an absolute gravimeter (FG5-206) and a superconducting gravimeter ( GWR CO26) in Strasbourg: new results on calibration and long-term gravity changes // pp. 519-525 --- E. Willemenot, P.Touboul and V. Josselin: Gradiometer calibration and performance verification: GOCE approach // pp. 527-532 --- M.F. Lalancette-Le Quentrec, B. Simon, D. Orseau, N. Florisch, M. Llubes, m. Amalvict and J. Hinderer: Ocean loading and crustal deformation in Bretagne (France ) an experiment involving differential GPS, gravimetry and tide gauges // pp. 533-536 --- Y. Kuroishi: Improvement of Japanese geoid with lD- FFT method and its comparison with altimetry-derived geoid // pp. 537-543 --- N. Kühtreiber: Combining gravity anomalies and deflections of the vertical for a precise Austrian geoid // pp. 545-553 --- M. Kuhn: The influence of different crust models on the gravity field of the Earth // pp. 555-562 --- H.A. Abd-Elmotaal: Comparison among different geoid solutions for the Egyptian south-western desert using FFT technique // pp. 563-569 --- J. Ádám: Difference between geoid undulation and quasigeoid height in Hungary // pp. 571-575 --- C. Braitenberg and M. Zadro: The Grotta Gigante horizontal pendulums - instrumentation and observations // pp. 577-582 --- P. Baldi, G. Casula, J. Hinderer and M. Amalvict: Calibration of a superconducting gravimeter: a comparison between the mass attraction method and the use of FG5 absolute gravity measurements // pp. 583-588 --- L. Biagi, R. De Stefano, F. Sansó and C. Sciarretta: RTC and density variations in the estimation of local geoids // pp. 589-595 --- A. De Bruijne, R. Haagmans and E. De M
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  • 99
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-79/21
    In: CRREL Report, 79-21
    Description / Table of Contents: The report studies the question of whether Great Lakes freighters could move effectively through ice-clogged channels with the aid of tows provided by warping or kedging systems. Ten operational concepts are outlined, and their advantages and disadvantages are noted. The crushing resistance of floating brash ice is then analyzed. The neutral, active and passive states of stress for laterally confined brash ice are considered, and the resistance to horizontal thrusting by a smooth vertical wall is calculated for cohesionless brash ice, and for ice in which there is finite cohesion between the ice fragments. The thickening of the ice cover in the vicinity of a "pusher", and the formation of pressure ridges, are analyzed in order to estimate the amount of pile-up that can occur against a ship hull. The analysis then moves on to consideration of ship resistance by brash ice, taking into account crushing resistance at the bow, tangential friction at the bow, and hull friction aft of the bow section. Comparisons are made between thrust from the ship’s screws and the calculated ice resistance. The next section of the report estimates the force requirements for a warping or kedging system in terms of thrust augmentation for existing vessels. Tow cable requirements are given, and estimates are made for cable anchors and for anchorage of underwater structures. The force and power requirements for winches and windlasses are given, the practical problems involved in the pickup or transfer of cables are mentioned, and the report concludes with a brief appraisal. The conclusion is that a simple warping tug system is appropriate for a full scale experiment, a chain ferry with auxiliary barge seems attractive for an operational system, and a chain ferry plow may be an efficient way to clear ice from channels.
    Type of Medium: Series available for loan
    Pages: iv, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 79-21
    Language: English
    Note: CONTENTS Abstract Preface Introduction Operational concepts A. Warping tug system B. Chain ferry system C. Chain ferry with auxiliary barge D. Ski tow system E. Dual winch warping system F. Simple kedging G. Trailing-line system H. Above-surface dual winch system I. Pulley systems J. Chain ferry plow Crushing resistance of fragmented ice covers Resistance to ship passage by broken ice Crushing resistance at the bow Tangential friction at the bow Hull friction aft of the bow section Total ship resistance from brash ice Comparison of ship thrust and ice resistance Force requirements for a warping or kedging system Tow cable requirements Anchors and anchorages Force and power requirements for winches and windlasses Pickup or transfer of cable General appraisal Literature cited
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  • 100
    Monograph available for loan
    Monograph available for loan
    Osnabrück : Naturwissenschaftliches Museum
    Call number: G 8547/2
    Type of Medium: Monograph available for loan
    Pages: 31 Blatt , Karten
    Language: German
    Location: Upper compact magazine
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