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  • 1990-1994  (1,575,055)
  • 1980-1984  (1,016,015)
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  • 1
    Monograph available for loan
    Monograph available for loan
    Moskva : Nauka
    Call number: 12256
    Type of Medium: Monograph available for loan
    Pages: 191 S
    Language: Russian
    Note: In kyrill. Schr.
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 2
    Call number: 12544
    Type of Medium: Monograph available for loan
    Pages: 230 S.
    Language: Russian
    Note: In kyrill. Schr.
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 3
    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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  • 4
    Monograph available for loan
    Monograph available for loan
    Düsseldorf : VDI-Verl.
    Call number: AWI S4-94-0049
    Description / Table of Contents: Dieses Lehr- und Arbeitsbuch beschreibt umfassend die Programmiersprache FORTRAN 77, die aufgrund ihrer großen Verbreitung und schnellen Erlernbarkeit in vielen Anwendungsbereichen eingesetzt wird. Es wendet sich an alle, die sich in kompakter Form das Grundwissen über eine Programmiersprache aneignen wollen, um Probleme aus dem technisch-wissenschaftlichen Bereich mit Hilfe eines Rechners zu lösen. In dem ersten Teil des Werkes wird auf spezielle Eigenschaften dieser Programmiersprache, auf bestimmte Programmiertechniken, sowie auf die Grundelemente und elementaren Sprachanweisungen eingegangen. Diese Kenntnisse ermöglichen dem Benutzer, einfache Programmbeispiele selbst zu entwickeln und eine gewisse Sicherheit für die Arbeit am Rechner zu erlangen. Anschließend wird das weitere Regelwerk zu FORTRAN 77 beschrieben und durch Beispiele erläutert. Die zahlreichen Beispiele wurden so ausgewählt, daß sie auch ohne tiefere mathematische Kenntnisse verständlich sind. Ebenso werden die Verbindungen zum Vorläufer Standard FORTRAN 4 sowie zur geplanten Neufassung FORTRAN 8X hergestellt.
    Type of Medium: Monograph available for loan
    Pages: XI, 182 S , graph. Darst , 21 cm
    ISBN: 3184010791
    Language: German
    Note: Inhaltsverzeichnis: 1 Einleitung. - 1.1 Entwicklung der Sprache FORTRAN 77. - 1.2 Erzeugung von ausführbaren Programmen. - 1.3 Bemerkungen zur Notation. - 2 Programmiertechniken. - 2.1 Programmplanung. - 2.2 Qualitätsanforderungen. - 3 Grundelemente von FORTRAN 77. - 3.1 Grundsymbole und Bezeichner. - 3.2 Aufbau eines FORTRAN 77-Programms. - 3.2.1 Aufbau einer Programmeinheit. - 3.2.2 Codierung einer Programmzeile. - 3.2.3 Beispiele zu den einzelnen Zeilenarten. - 3.3 Die Standardtypen. - 3.3.1 Der Standardtyp INTEGER. - 3.3.2 Der Standardtyp REAL. - 3.3.3 Der Standardtyp DOUBLE PRECISION. - 3.3.4 Der Standardtyp COMPLEX. - 3.3.5 Der Standardtyp LOGICAL. - 3.3.6 Der Standardtyp CHARACTER. - 3.3.7 Der Zeichenkettentyp. - 3.4 Variablen der Standardtypen. - 3.4.1 Vorbemerkungen. - 3.4.2 Vereinbarungen. - 3.4.3 Typ Vereinbarungen. - 3.4.4 Konstantendefinitionen. - 3.4.5 Vereinbarung von Feldern. - 3.5 Ausdrücke in den Standardtypen. - 3.5.1 Allgemeine Regeln zur Formelauswertung. - 3.5.2 Arithmetischer Ausdruck. - 3.5.3 Logischer Ausdruck. - 3.5.4 Zeichenkettenausdruck. - 3.5.5 Einschränkungen für die Standardfunktionen. - 3.5.6 Beispiel zur Darstellung von Ausdrücken. - 4 Elementare Anweisungen. - 4.1 Statisches und dynamisches Programmende. - 4.2 Wertzuweisungen. - 4.3 Bedingte Anweisungen. - 4.3.1 Die logische IF-Anweisung. - 4.3.2 Die Block-IF-Anweisung. - 4.4 Sprunganweisungen. - 4.4.1 Einfache Sprunganweisung. - 4.4.2 Arithmetische IF-Anweisung. - 4.4.3 Berechnete Sprunganweisung. - 4.4.4 Gesetzte Sprunganweisung. - 4.4.5 Markenzuweisung. - 4.5 Ein-/Ausgabeanweisungen. - 4.5.1 Die READ-Anweisung. - 4.5.2 Die WRITE-Anweisung. - 4.5.3 Die PRINT-Anweisung. - 4.6 Schleifen. - 4.7 Programmbeispiele. - 4.7.1 Elektrischer Widerstand eines Leiters. - 4.7.2 Impedanz einer RL-Reihenschaltung. - 4.7.3 Reihenentwicklung einer Funktion. - 4.7.4 Berechnung der Zahl e. - 4.7.5 Lösung einer quadratischen Gleichung. - 4.7.6 Berechnungen zum schiefen Wurf. - 5 Unterprogramme. - 5.1 Formelfunktionen. - 5.2 Functions. - 5.3 Subroutines. - 5.4 Bemerkungen zur Unterprogrammtechnik. - 6 Ein-/Ausgabeformate. - 6.1 Formate für numerische Daten. - 6.1.1 Formate für Variablen vom Typ INTEGER. - 6.1.2 Formate für Festpunktdarstellung. - 6.1.3 Formate für Gleitpunktdarstellung. - 6.1.4 Formate für normierte Festpunktdarstellung. - 6.1.5 Formate für Variablen vom Typ COMPLEX. - 6.2 Formate für nichtnumerische Daten. - 6.2.1 Formate für Variablen vom Typ LOGICAL. - 6.2.2 Formate für Zeichenketten. - 6.2.3 Weitere Formatierungsmöglichkeiten. - 6.3 Hinweise zu den Formatvereinbarungen. - 7 Speicherplatzverwaltung. - 7.1 Grundüberlegungen. - 7.2 Datenaustausch. - 7.3 Initialisierung von Variablen. - 7.3.1 Die DATA-Anweisung. - 7.3.2 BLOCK DATA-Programmeinheiten. - 8 Dateiverwaltung. - 8.1 Zugriff auf externe Dateien. - 8.2 Die OPEN-Anweisung. - 8.3 Die CLOSE-Anweisung. - 8.4 Schreiben und Lesen von externen Dateien. - 8.5 Positionierung sequentieller Dateien. - 8.6 Ermitteln von Dateieigenschaften. - 8.7 Interne Dateien. - 9 Ergänzungen zur Programmierung. - 9.1 Spracherweiterungen. - 9.1.1 Strukturanweisungen. - 9.1.2 Erweiterte Vereinbarungen. - 9.1.3 Sonstige Erweiterungen. - 9.1.4 Zusätzliche Functions. - 9.1.5 Zusätzliche Subroutines. - 9.2 Geplante Spracherweiterungen. - 9.3 Häufige Fehler. - 9.3.1 Fehlermeldungen des Compilers. - 9.3.2 Fehlermeldungen des Betriebssystems. - 9.4 Änderungen zu FORTRAN IV. - A Ausgewählte Beispiele. - A.1 Inversion einer Zeichenkette. - A.2 Häufigkeit eines Zeichens. - A.3 Dateistatistik. - A.4 Umwandlung von Zeichenfolgen. - A.5 Darstellung eines Funktionsgraphen. - A.6 Numerische Integration. - A.7 Sprungantwort eines PID-Reglers. - B Übersicht über die FORTRAN 77-Anweisungen.
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  • 5
    Call number: PIK W 510-16-89883
    Type of Medium: Monograph available for loan
    Pages: 62 S.
    ISBN: 9529844050
    Series Statement: EFI proceedings 1
    Language: English
    Branch Library: PIK Library
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  • 6
    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
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  • 7
    Call number: M 16.90208
    Type of Medium: Monograph available for loan
    Pages: 165 S. , graph. Darst., Kt.
    Language: German
    Location: Upper compact magazine
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  • 8
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Langenscheidt
    Associated volumes
    Call number: AWI S5-92-0368
    In: Langenscheidts Großwörterbuch der englischen und deutschen Sprache "Der Kleine Muret-Sanders"
    Type of Medium: Monograph available for loan
    Pages: 1199 S.
    ISBN: 3468021216
    Series Statement: Langenscheidts Großwörterbuch der englischen und deutschen Sprache "Der Kleine Muret-Sanders"
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  • 9
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Langenscheidt
    Associated volumes
    Call number: AWI S5-92-0369
    In: Langenscheidts Großwörterbuch der englischen und deutschen Sprache "Der Kleine Muret-Sanders"
    Type of Medium: Monograph available for loan
    Pages: 1296 S.
    Edition: 6. Aufl.
    ISBN: 3468021259
    Series Statement: Langenscheidts Großwörterbuch der englischen und deutschen Sprache "Der Kleine Muret-Sanders"
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  • 10
    Monograph available for loan
    Monograph available for loan
    Moskva : Nauka
    Call number: AWI G7-16-90204
    Type of Medium: Monograph available for loan
    Pages: 284 S , Ill., graph. Darst., Kt.
    ISBN: 5020037788
    Language: Russian
    Note: Oglavlenie: Vvedenie. - 1. Obyknovennyj mineral s neobyčnymi svojstvami. - 2. Sfera snega i l'da. - 3. Moroznyj sloj atmosfery. - 4. Beloe pokryvalo planety. - 5. Snežnaja krugovert'. - 6. Snežnyj pokrov upravljaet klimatom. - 7. Massy snega na gornych sklonach. - 8. Udary po dniščam dolin. - 9. Lavinnye sobaki i sverchzvukovye samolety. - 10. Ataki l'da na rekach. - 11. Amnunna, Taryny, Naledi. - 12. L'dy pod zemlej. - 13. Po vole vetrov. - 14. - Ledovyj režim poljarnych morej. - 15. Večnye snega v podnebes'e gor. - 16. Bor'ba židkoj i tverdoj vody. - 17. Večnoe dviženie lednikov. - 18. V logove ledjanogo medvedja. - 19. Laboratorija veličinoj s kontinent. - 20. Global'nye izmenenija v "zerkale" ledjanogi kerna. - 21. Vzaimodejstvie lednikov i okeana. - 22. Prošlye oledenenija zemli. - 23. Bereč' i priumnožat' resursy snega i l'da. - 24. Buduščee prirodnoj sredy i gljaciologičeskij prognoz. - Spisok ispol'zovannoj literatury. , In kyrill. Schr.
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  • 11
    Call number: SR 90.0907(10)
    Type of Medium: Series available for loan
    Pages: II, 135 S.
    Series Statement: Berichte des Instituts für Geophysik der Ruhr-Universität Bochum : Reihe A 10
    Language: German
    Note: Zugl.: Bochum, Univ., Diss., 1981
    Location: Lower compact magazine
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  • 12
    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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  • 13
    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.
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  • 14
    Call number: AWI G3-16-90237
    Type of Medium: Monograph available for loan
    Pages: 133 S , Ill., graph. Darst
    Edition: Učebnoe posobie
    ISBN: 5211024605
    Language: Russian
    Note: In kyrill. Schr.
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  • 15
    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.
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  • 16
    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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  • 17
    Call number: AWI G6-18-91531
    In: Karlsruher geochemische Hefte, Nr. 3
    Type of Medium: Series available for loan
    Pages: IV, 157 S. , Ill., graph. Darst.
    Series Statement: Karlsruher geochemische Hefte 3
    Language: German
    Note: Zugl.: Karlsruhe, Univ., Diss., 1992 , Inhalt: 1. Einleitung und Zielsetzung. - 2. Das Untersuchungsgebiet. - 2.1. Lage des Untersuchungsgebiets. - 2.2. Geologische Situation an der Galapagos-Mikroplatte. - 3. Die Sedimente im Untersuchungsgebiet. - 3.1. Übersicht. - 3.2. Die Beschreibung der Sedimentkerne. - 3.2.1. Kern 50. - 3.2.2. Kern 54. - 3.2.3. Kern 68. - 3.2.4. Kern 69. - 3.2.5. Kern 76. - 3.2.6. Kern 93. - 3.2.7. Kern 95. - 4. Die Vorbereitung der Proben. - 4.1. Probennahme. - 4.2. Aufbereitung der Proben. - 4.2.1. Zur Dichte der Beprobung. - 5. Analytik. - 5.1. Kontrolle der Meßqualität. - 5.2. Wassergehalt. - 5.3. Korngrößenbestimmung. - 5.4. Glühverlust (L.O.I.). - 5.5. Kohlenstoff-Schwefel-Analyse (CSA). - 5.6. Titrimetrische Bestimmung von Fe2+. - 5.7. Wellenlängendispersive Röntgenfluoreszenz-Analyse. - 5.8. Energiedispersive Röntgenfluoreszenz-Analyse (EDRFA). - 5.9. Graphitrohr-Atom-Absorptions-Spektrometrie. - 5.10. Instrumentelle Neutronenaktivierungs-Analyse (INAA). - 6. Spezielle Anwendungen und Weiterentwicklungen im analytischen Bereich. - 6.1. Entsalzung durch Dialyse. - 6.2. Die Trennung von Karbonat-Kohlenstoff und organischem Kohlenstoff mit Hilfe der CSA. - 6.2.1. Beschreibung des Verfahrens. - 6.2.2. Ergebnisse. - 6.3. Die Bestimmung des Calcitgehalts aus dem Glühverlust. - 6.4. Erstellung eines Auswerteprogramms für die winkeldispersive RFA. - 7. Die Bestimmung der Mineralphasen. - 7.1. Diffraktometrie. - 7.2. Differenz-Thermo-Analyse - Thermogravimetrie (DTA-TG). - 8. Wärmeflußmessungen. - 8.1. Beschreibung. - 8.2. Ergebnisse. - 9. Datierungen. - 9.1. Thorium-Datierung. - 9.2. Elektronenspin-Resonanz-Darierung (ESR). - 9.3. Sauerstoff-Isotopen-Datierung. - 9.3.1. Beschreibung. - 9.3.2. Interpretation der d 180-Kurve von Kern 93. - 9.4. Mikropaläontologie. - 9.4.1. Kern 93. - 9.4.2. Kern 68. - 9.4.3. Kern 69. - 10. Interpretation der geochemischen Daten am Beispiel von Kern 93. - 10.1. Sedimentologische Parameter. - 10.1.1. Sedimenteintrag. - 10.1.2. Bioturbation. - 10.2. Redoxprozesse während der Diagenese, eine Diskussion. - 10.2.1. Parameter. - 10.2.2. Diagenetische Mobilisation von Mangan. - 10.2.3. Die Redoxfaktoren. - 10.2.3.1. Der Eh-Wert. - 10.2.3.2. Probendichte und Untersuchungstiefe. - 10.2.3.3. Modelle. - 10.2.4. Die Einflußgrößen im einzelnen. - 10.2.4.1. Reduktion und Oxidation. - 10.2.4.2. Eh-pH Bedingungen. - 10.2.4.3. Reduktionsmittel. - 10.2.4.4. MnO2 und Mn2+. - 10.2.4.5. Tiefere Bohrungen. - 10.2.4.6. Eisen. - 10.2.5. Zusammenfassung. - 10.3. Klimatisch bedingte Parameter und Elemente. - 10.3.1. d18O. - 10.3.2. Foraminiferen. - 10.3.3. Calcit. - 10.3.4. Organischer Kohlenstoff. - 10.3.5. Phosphat. - 10.3.6. Weitere wichtige Spurenelemente. - 10.3.6.1. Brom. - 10.3.6.2. Die Seltenen Erden. - 10.3.7. Modelle zur Erklärung der Anreicherung von Mangan und Diskussion der Ergebnisse. - 11. Die Interpretation von Kern 68. - 11.1. Datierung. - 11.2. Die Asche-reiche Lage in 120 cm Teufe. - 11.3. Klimatische Parameter. - 11.4. Der Vergleich von Kern 69 mit Kern 68. - 12. Die Interpretation der Kerne 50 und 54. - 13. Die Interpretation von Kern 76. - 13.1. Die Aschelagen. - 13.1.1. Beschreibung und Genese. - 13.1.2. Zur Geochemie der Aschen. - 13.2. Die Normalsedimente in Kern 76. - 13.2.1. Anwendung der klimatischen Parameter. - 13.2.2. Weitere Elemente. - 13.3. Zusammenfassung. - 14. Die Interpretation von Kern 95. - 14.1. Übersicht. - 14.2. Die Serpentin-Schicht. - 14.3. Die hydrothermalen Sedimente oberhalb und unterhalb der Serpentin-Schicht. - 14.4. Die Klimaparameter. - 14.5. Zusammenfassung Kern 95. - 15. Zusammenfassung und Fazit. - 16. Perspektiven. - 17. Literatur. - Anhang.
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  • 18
    Call number: AWI Bio-18-91580
    Type of Medium: Monograph available for loan
    Pages: VI, 221 S , Ill., graph. Darst., Kt
    ISBN: 0947643605 (kart.)
    Language: English
    Note: CONTENTS: Preface. - Dedication. - List of Contributors. - 1. Exine ultrastructure in the spores of enigmatic Devonian plants: its bearing on the interpretation of relationships and on the origin of the sporophyte / A. R. Hemsley. - 2. A review of Mesozoic megaspore ultrastructure / W. L. Kovach. - 3. Tests and applications of a method of quantitative analysis of fossil and extant lycopsid megaspore walls / W. A. Taylor. - 4. Exospore ultrastructure in Carboniferous sphenopsids / B. Lugardon and C. Brousmiche Delcambre. - 5. Comparative ultrastructure of living and fossil matoniaceous spores (Pteridophyta) / J. H. A. Van Konijnenburg-Van Cittert and M.H. Kurmann. - 6. Ultrastructure of Teickertospora torquata (Higgs) from the Late Devonian: oldest saccate palynomorph / C. B. Foster and B.E. Balme. - 7. Comparative ultrastructure of fossil gymnosperm pollen and its phylogenetic implications / J. M. Osborn and T. N. Taylor . - 8. Pollen morphological diversity in extant and fossil gymnosperms / M. H. Kurmann and M. S. Zavada. - 9. Ultrastructure of pollen from Cretaceous angiosperm reproductive structures / K. R. Pedersen, E. M. Friis and P. R. Crane. - 10. Ultrastructure and relationships of mid-Cretaceous polyforate and triporate pollen from Northern Gondwana / J. V. Ward and J. A. Doyle. - 11. Pollen ultrastructure of Pandanaceae and the fossil genus Pandaniidites / C. L. Hotton, H. A. Leffingwell and J. J. Skvarla. - 12. Relationship between Propylipollis annularis (Tertiary dispersed pollen) and extant Xylomelum (Proteaceae) / L. A. Milne. - Taxonomic Index.
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  • 19
    Monograph available for loan
    Monograph available for loan
    Amsterdam [u.a.] : Elsevier Scientific Publ.
    Associated volumes
    Call number: AWI Bio-99-0079-2
    In: The Northwest European Pollen Flora, II
    Type of Medium: Monograph available for loan
    Pages: V, 265 S. , zahlr. Ill.
    ISBN: 0444418806
    Language: English
    Note: CONTENTS: Preface / G. C. S. Clarke and W. Punt. - 8. Solanaceae / W. Punt and M. Monna-Brands. - 9. Saxifragaceae / A. A. M. L. Verbeek-Reuvers. - 10. Boraginaceae / G. C. S. Clarke. - 11. Escalloniaceae / A. A. M. L. Verbeek-Reuvers. - 12. Grossulariaceae / A.A.M.L. Verbeek-Reuvers. - 13. Hydrangeaceae / A. A. M. L. Verbeek-Reuvers. - 14. Parnassiaceae / A. A. M. L. Verbeek-Reuvers. - 15. Plantaginaceae / G. C. S. Clarke and M. R.Jones. - 16. Valerianaceae / G. C. S. Clarke and M. R. Jones. - 17. Aceraceae / G. C. S. Clarke and M. R. Jones. - 18. Hippuridaceae / M. S. Engel. - 19. Haloragaceae / M. S. Engel. - 20. Papaveraceae / A. J. Kalis. - Index. - Errata.
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  • 20
    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.
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  • 21
    Call number: M 17.90496
    Type of Medium: Monograph available for loan
    Pages: IX, 649 S , graph. Darst., Kt
    Language: German
    Location: Upper compact magazine
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  • 22
    Call number: IASS 16.90607
    Type of Medium: Monograph available for loan
    Pages: VIII, 56 S , Ill., 1 Kt
    ISBN: 2831701880 (kart.)
    Series Statement: Report / E & P Forum 2.55/184
    Language: English
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    Call number: AWI G7-18-92027
    Description / Table of Contents: The book by M. S. Krass and V. G. Merzlikin "The Radiative Thermophysics of Snow and Ice"- the new point of view with usage of methods of light-scattering media theory is realized as working of theory of radiative thermophysics of snow and ice. The statements of new class of thermophysics problems are presented, snow and ice are supposed as light-scattering media with volume reflection and absorption. For the first time this method have helped to explain some noted effects of metamorphic evolution in upper active layer of snow-ice medium and to correct lows of their mass-energy exchange. Optical and physical models for different kinds of snow and ice were studied. The models take into account snow and ice-atmosphere interaction by means of convective heat transfer, solar flux and long-wavelength reradiation, and also phase transitions in medium and at boundaries. The model realizations of various native cases of forming heat regime within snow-ice covers are considered. For all that the way of practical use of theoretical results is shown. The range of the problems makes the book to be interesting for experts in glaciology and planetology, physicists, mathematicians, geographers, climatologists.
    Type of Medium: Monograph available for loan
    Pages: 260 Seiten , Illustrationen
    ISBN: 5-286-00243-9
    Language: Russian
    Note: Contents: Introduction. - Legend. - Chapter 1. Basic Directions of Snow and Ice Thermal Physics Study. - 1. Analysis of traditional theoretical and experimental methods. - 2. New methodological point of view on the thermal physics of snow-ice masses. - 3. Conditions of initial data. - 4. Complex heat transfer within the system "space-atmosphere-earth surface". - 5. Optical and thermophysical properties of snow and ice. - Chapter 2. General Statement of the Problem of Radiative Thermophysics. - 1. Absorption and scattering of light in optical-heterogeneous media. - 2. Optical phenomenological models and parameters of radiation transfer in light-scattering media (LSM). - 3. Distribution of absorbed radiation flux in the unlimited layer of LSM. - 4. Optical models and snow and ice characteristics as LSM ones. - 5. Influence of boundary conditions upon thermal regime of lightscattering snow-ice layer. - 6. Statements of basic problems of radiative thermal physics of snow and ice. - Chapter 3. Thermal Regime of Snow-Ice Cover. - 1. Estimation of heat processes characteristics of snow-ice covers. - 2. Oscillating external sources. - 3. Radiative-conductive mechanism of snow and ice heating. - 4. Thermal regime of combined snow-ice layers. - 5. Melting in snow-ice media under conditions of radiative heat transfer. - 6. Thermo-radiative heating and balance of the upper part of active layer of antarctic snow-ice covers. - Chapter 4. The Model of Metamorphic Evolution of Snow and Ice. - 1. Influence of radiation fluxes upon icy crystals of snow cover. - 2. Mechanism of sublimation under forming of snow cover. - 3. Phenomenological picture of sublimation in snow medium. - 4. The model of radiative-thermal regime under sublimation. - 5. Thermal regime of snow and ice under conditions of evaporation and condensation. - 6. On nature of snow and ice metamorphism. - Chapter 5. Radiative Thermophysics of Snow-Ice Masses in Practical utilization. - 1. Heat regime of snow-ice cover under thermoregulative film. - 2. Influence upon surface melting of glaciers. - 3. Antarctic experiments on artificial increase of ablation. - 4. Artificial increase of ablation control. - 5. Ecological aspects of artificial increase of ablation. - 6. Cooling in polar regions. - Chapter 6. Thermophysics of Antarctic Lakes. - 1. Natural conditions of oases. - 2. Types of antarctic lakes. - 3. One-dimensional heat problem. - 4. Simplification of the model. - 5. Thermal regime of fresh and saline lakes. - 6. Phenomenon of fresh-saline stratified lakes. - 7. Stationary model including mass transfer. - 8. Thermal regime of fresh-saline lake Vanda. - Chapter 7. Space Glaciology. - 1. Ice in Solar system. - 2. Radiative thermophysics of ice under cosmic conditions. - 3. Ice of cometary nuclei. - 4. Heat-balance models of 'radiative thermophysics of cometary nuclei. - Conclusion. - References. - Index. , In kyrillischer Schrift
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  • 25
    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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  • 26
    Monograph available for loan
    Monograph available for loan
    Wien : Buchgemeinschaft Donauland Kremayr & Scheriau
    Call number: AWI E2-18-91876
    Type of Medium: Monograph available for loan
    Pages: 209 Seiten , Illustrationen , 18 cm
    Edition: Lizenzausgabe
    Series Statement: Reisen, Menschen, Abenteuer : Arktis
    Uniform Title: Le marcheur du pôle 〈dt.〉
    Language: German
    Note: Inhalt: Das unüberwindbare Eischaos. - Unterwegs auf dem eigenen Schatten. - Eine Stunde unter Menschen. - Der Blizzard greift an. - Frische Eisbärenspuren im Eis. - Lebensweg eines Abenteurers. - Begegnung im Nirgendwo. - Die Polfalle, Träume und immer wieder das Eislabyrinth. - Knapp am Tod vorbei. - Ein arktisches Rodeo. - Das weiße Tor am Schwarzen Fluß. - Im Zauberkreis des Nordpols.
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  • 27
    Call number: S 90.0908(85)
    Type of Medium: Series available for loan
    Pages: 134 S. , graph. Darst.
    Series Statement: Berichte des Instituts für Meteorologie und Geophysik der Universität Frankfurt/Main 85
    Language: German
    Note: Zugl.: Frankfurt (Main), Univ., Diss., 1990
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  • 28
    Call number: M 17.90775
    Type of Medium: Monograph available for loan
    Pages: 335 S. , Ill., graph. Darst.
    Language: German
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  • 29
    Monograph available for loan
    Monograph available for loan
    Amsterdam : Vrije Universiteit
    Call number: M 17.90777
    Type of Medium: Monograph available for loan
    Pages: 168 S. , Illustrationen, graphische Darstellungen
    ISBN: 909019049X , 9789090190495
    Language: English
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  • 30
    Call number: M 17.90776
    Type of Medium: Monograph available for loan
    Pages: 191 S. , Illustrationen, graphische Darstellungen
    ISBN: 9789090217987
    Classification:
    Photogrammetry, Remote Sensing
    Language: English
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  • 31
    Call number: M 17.90778
    Type of Medium: Monograph available for loan
    Pages: 159 S. , Illustrationen, graphische Darstellungen
    ISBN: 908659204X , 9789086592043
    Language: English
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  • 32
    Call number: AWI G6-18-91903
    Type of Medium: Series available for loan
    Pages: 93 Seiten , Illustrationen
    Series Statement: Schriftenreihe Anwendung von Isotopen und Kernstrahlungen in Wissenschaft und Technik 5
    Language: German
    Note: Inhaltsverzeichnis: 1. Einleitung. - 2. Grundlagen der 15N-Tracertechnik. - 3. Versuchsplanung und -auswertung. - 3.1. Begriffe und Symbole. - 3.2. Formeln und Definitionen für die Berechnung der in der 15N-Tracertechnik benötigten Größen. - 3.2.1. Relative 15N-Häufigkeit. - 3.2.2. Molmasse. - 3.2.3. Stickstoffgehalt. - 3.2.4. N-Masse. - 3.2.5. Stoffmenge. - 3.2.6. N-Menge. - 3.2.7. 15N- bzw. 14N-Menge. - 3.2.8. 15N-Masse. - 3.2.9. 15N-Exzeßmasse. - 3.2.10. Titrimetrische Neutralisationsanalysen. - 3.2.11. Spektren-Auswertung der 15N-Messung. - 3.3. Untersuchung statischer Eigenschaften biologischer Systeme (statische Isotopenverdünnungsanalyse). - 3.4. Untersuchung des dynamischen Verhaltens biologischer Systeme. - 3.4.1. Modellierung von Tracerprozessen. - 3.4.2. Theoretische Grundlagen der mathematischen Modellierung. - 3.4.3. Modell des Stickstoff-Stoffwechsels im Ackerboden. - 3.5. Berechnungsbeispiele zu den Abschnitten 3.2. bis 3.4. - 3.5.1. Isotopenstöchiometrie. - 3.5.2. Titrimetrische Analyse einer 15N-markierten Substanz. - 3.5.3. Isotopenverdünnungsanalyse. - 3.5.4. Tracerkinetik. - 3.6. Literatur. - 4. Methodik der Probenaufbereitung und Isotopenanalytik. - 4.1. Aufarbeitung des Probenmaterials. - 4.2. Chemische Aufbereitung. - 4.3. Probenchemie. - 4.3.1. Dumas-Methode. - 4.3.2. Hypobromit-Methode. - 4.3.3. Sonstige Methoden. - 4.4. Isotopenanalytik. - 4.4.1. Emissionsspektrometrische 15N-Analytik. - 4.4.1.1. Isotopenanalytik mit dem 15N-Analysator NOI-5. - 4.4.1.2. Isotopenanalytik mit dem automatischen 15N-Analysator ISONITROMAT 5200. - 4.4.2. Massenspektrometrische 15N-Isotopenanalyse. - 4.4.3. Methodenvergleich. - 4.5. Fehlerquellen in der 15N-Analytik. - 4.6. Weitere Analysenmethoden in der 15N-Tracertechnik. - 4.6.1. NMR-Spektroskopie. - 4.6.2. Kombinierte Gaschromatographie-Massenspektroskopie und Hochdruck-Flüssigkeitschromatographie-Massenspektroskopie. - 4.7. Literatur. - 5. 15N-Anwendung in der Biochemie. - 5.1. Die biologische Stickstoff-Fixierung. - 5.2. Pflanzenphysiologie. - 5.3. Tierphysiologie. - 5.4. Literatur. - 6. 15N-Anwendung in der landwirtschaftlichen Forschung. - 6.1. Allgemeines. - 6.2. Die Anwendung 15N-markierter Düngemittel zum Studium des N-Umsatzes im Boden. - 6.2.1. Stickstoff-Festlegung. - 6.2.1.1. Ammoniumfixierung und Sorption an organischen Bodenbestandteilen. - 6.2.1.2. Stickstoff-Festlegung in organischen N-Verbindungen. - 6.2.2. Verfügbarkeit und Mobilisierung von Stickstoff. - 6.2.3. Stickstoff-Transformation und Dynamik des Stickstoff-Umsatzes. - 6.2.3.1. Mineralisierung und Immobilisierung. - 6.2.3 .2. Humifizierung. - 6.2.3.3. Nitritzersetzung im Boden. - 6.2.4. Ausnutzung des Düngemittel-Stickstoffs und Stickstoff-Verluste (N-Bilanz). - 6.2.5. Migration von Düngemittel-Stickstoff im Boden. - 6.2.6. Nachwirkungseffekt. - 6.2.7. Forstwirtschaftliche Untersuchungen mit 15N. - 6.3. Die Anwendung 15N-markierter Düngemittel zum Studium des Stickstoff-Umsatzes in der Pflanze. - 6.3.1. Die Aufnahme des Stickstoffs und ihre Beeinflussung durch N-Form, Applikationsart, Pflanzenart, Ernährungszustand, Spurenelementversorgung, Temperatur und Zusammensetzung des Nährsubstrates (Stickstoff-Fixierung). - 6.3.2. Die Ausnutzung des Düngemittel-Stickstoffs durch die Pflanze. - 6.3.3. Verteilung des Dünge-Stickstoffs in der Pflanze. - 6.3.4. Stoffwechsel des gedüngten Stickstoffs. - 6.4. Die Untersuchung des Stickstoff-Umsatzes im Tier mittels 15N. - 6.4.1. Eiweißstoffwechsel. - 6.4.1.1. Proteinverdaulichkeit, Stickstoff-Verweilzeitstudien und Aminosäure-Resorptionskinetik. - 6.4.1.2. Biosynthese von Eiproteinen. - 6.4.1.3. Metabolismus von NPN-Verbindungen bei Wiederkäuern. - 6.5. Literatur. - 7. 15N-Anwendung in der medizinischen Forschung. - 7.1. Besonderheiten der Anwendung stabiler Isotope in der Humanmedizin. - 7.2. Biochemie des Intermediärstoffwechsels. - 7.2.1. Anatomische Lokalisation von Stoffwechselprozessen. - 7.2.2. Aufklärung von Stoffwechselwegen durch Erfassung der Stoffwechselzwischen- oder Endprodukte. - 7.2.3. Bestimmung der mittleren Verweilzeit bzw. Lebensdauer von Verbindungen. - 7.2.4. Bestimmung der Größe von Stoffwechsel-Pools. - 7.3. Gastroenterologie. - 7.4. Pädiatrie. - 7.5. Ernährung. - 7.6. Beiträge zur Diagnostik und Ursachenforschung von Krankheiten und zu pharmakologischen Fragestellungen. - 7.7. Literatur.
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  • 33
    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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  • 34
    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.
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  • 35
    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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  • 36
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Institut für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-994(1992/1993) ; ZSP-994(1992/1993, eng)
    In: Zweijahresbericht / Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung, 1992/1993
    Type of Medium: Series available for loan
    Pages: 196 Seiten , Illustrationen
    ISSN: 0940-4546 , 1618-3703
    Series Statement: Zweijahresbericht / Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung 1992/1993
    Language: German , English
    Note: Inhaltsverzeichnis 1. Einleitende Übersicht 2. Nationale und internationale Zusammenarbeit 3. Forschungsarbeiten - Expeditionen 3.1 Antarktisexpedition X/2-8 3.2 Arktisexpedition IX 3.3 Antarktisexpedition Xl 3.4 Landexpedition Sibirien 4. Wissenschaftliche Arbeiten der Sektionen 4.1 Biologie I (Zoologie) 4.2 Biologie II (Botanik und Mikrobiologie) 4.3 Chemie 4.4 Geologie 4.5 Geophysik 4.6 Physik des Ozeans und der Atmosphäre I 4.7 Physik des Ozeans und der Atmosphäre II 4.8 Meeresphysik und Meßwesen 4.9 Forschungsstelle Potsdam 5. Ausgewählte Forschungsthemen Die Entwicklung von Kaltwasser-Makroalgen Die Biodiversität des antarktischen Benthos Weddellrobben - Tieftaucher in der Hochantarktis Die weltweit verbreitete Planktonalge Phaeocystis: Untersuchungen zu physiologischen und molekularen Unterschieden Die Entwicklung von Algen- und Bakteriengemeinschaften im Meereis Zooplanktonkot in der Arktis: Nahrungsgrundlage im Pelagial oder Transportvehikel bei der Sedimentation? Stimuliert ein globaler Anstieg des Kohlendioxids die marine Primärproduktion? Die Beziehung zwischen Huminstoffen und Aminosäuren in polaren Gewässern Die Ozonverteilung in der Atmosphäre über dem Atlantik Pinatubo-Aerosole und polare stratosphärische Wolken Spurengas-Messungen in der arktischen Stratosphäre während der Polarnacht Die mittleren vertikalen Ozonverteilungen über Arktis und Antarktis Eisbewegung und Subglazialtopographie im Umfeld der Schirmacheroase, Ostantarktis Umweltgeschichte der kontinentalen Ostantarktis - aufgezeichnet in Seesedimenten Das antarktische Meereis und seine Verbreitung in geologischer Vorzeit-Rekonstruktion und Modellierung Kalt- und Warmzeiten im Südatlantik anhand benthischer Foraminiferen Terrigener Sedimenteintrag im östlichen Arktischen Ozean Mineralbildung in Sedimenten und Böden der Permafrostzone Seismische Untersuchungen im eurasischen Becken (Arktischer Ozean) Untersuchungen zum Massenhaushalt des Inlandeises in Nordostgrönland Wassermassenbildung im Storfjord - ein Modell arktischer Schelfgebiete Atmosphärische Rollenkonvektion in der Framstraße ERS-l Radaraufnahmen des antarktischen Meereises Der Einfluß von Algen auf die physikalischen Prozesse im Meereis: ein Modell Die Bestimmung der Zirkulation im Weltmeer aus hydrographischen Daten Auswirkungen der Tiefenwasserproduktion auf die Zirkulation des Nordatlantik Infrarot-Zeilenkamera zur verbesserten Meereisfernerkundung LlDAR-Gerät zur Beobachtung fluoreszierender Stoffe im Meer Untersuchung der durch das Ozonloch verursachten UV-B Belastung auf Produktion und Artenzusammensetzung des Phytoplanktons 6. Logistik 7. Zentrale Einrichtungen 7.1 Öffentlichkeitsarbeit 7.2 Bibliothek 7.3 Rechenzentrum 8. Personeller Ausbau und Haushaltsentwicklung 8.1 Personal 8.2 Haushalt Anhang I Personal II Wissenschaftliche Veranstaltungen III Publikationen des Instituts IV Veröffentlichungen der Mitarbeiter V Abgeschlossene Examensarbeiten VI "Polarstern"-Expeditionen , Contents 1. Introductory Overview 2. International and National Cooperation 3. Research Projects - Expeditions 3.1 ANT X/2-8 3.2 ARK IX 3.3 ANT XI 3.4 Land Expedition to Siberia 4. Scienlific Work of the Sections 4.1 Biology I (Zoology, Ecophysiology and Macroalgae Ecology) 4.2 Biology II (Botany and Microbiology) 4.3 Chemistry 4.4. Geology 4.5 Geophysics and Glaciology 4.6 Physics of the Ocean and Atmosphere I 4.7 Physics of the Ocean and Atmosphere II 4.8 Marine Physics and Instrumentation 4.9 Potsdam Research Unit 5. Selected Research Topics The Evolution of cold-water macroalgae Antarctic Benthos Biodiversity Weddell Seals - deep divers in the High Antarctic The Cosmopolitan Planktonic Alga Phaeocystis: investigations into physiological and molecular differences Development of algal and bacterial communities in sea ice Zooplankton Faeces in Arctic Waters: Food for the Pelagic System or Transport Vehicle for Sedimenting Matter? Does the Global C02 Increase Stimulate Marine Primary Production? Relationship between Humic Substances and Amino Acids in Polar Waters The Ozone Distribution in the Atmosphere over the Atlantic Ocean Pinatubo Aerosols and Polar Stratospheric Clouds.. Measurement of Trace Gases in the Arctic Stratosphere during the Polar Night The Mean Vertical Distributions of Ozone above the Arctic and Antarctic Ice Movement and Sub-glacial Topography in the Vicinity of the Schirmacher Oasis, East Antarctic The Environmental History of the Continental East Antarctic as Recorded in Lake Sediments The Antarctic Sea Ice and its Extent in Geologically Prehistoric Times - Reconstruction and Modelling Benthic Foraminifera- Indicators of Glacial and Interglacial Climate in the South Atlantic Ocean Terrigenous Sediment Supply to the Eastern Arctic Ocean Mineral Formation in the Sediments and Soils of the Permafrost Zone Seismic Investigations in the Eurasian Basin (Arctic Ocean) Investigations into the Mass Balance of the Inland Ice in Northeast Greenland Water Mass Formation in the Storfjord - a Model of Arctic Shelf Regions Atmospheric Roll-Convection in the Fram Strait ERS-1 Radar Images of the Antarctic Sea Ice The Influence of Algae on the Physical Processes in Sea Ice: a Model Estimation of the Global Ocean Circulation from Hydrographic Measurements Influence of Deep Water Production on the North Atlantic General Circulation Infrared Line Scanner for Improved Remote Sensing of Sea Ice The LIDAR Instrument for Observation of Fluorescent Matter in the Ocean lnvestigation of the UV-B Impact on Phytoplankton Production and Species Composition 6. Logistics 6.1 Polar Stations 6.2 Research Vessels "Polarsten" and "Victor Hensen" 6.3 Polar Aircraft and Helicopters 6.4 General Logistics 7. Central Services 7.1 Press and Public Relations 7.2 Library 7.3 Computer Centre 8. Personnel Expansion and Budget Development 8.1 Personnel 8.2 Budget Annex I. Personnel II. Scientific Events Ill. Publications of the Institute IV. Publications by Members of Staff V. Completed Theses and Dissertations VI. "Polarstern" Expeditions
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  • 37
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/4
    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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  • 38
    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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  • 39
    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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  • 40
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/2
    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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  • 41
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/1
    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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  • 42
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/17
    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.
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    Pages: ii, 14 Seiten , Illustrationen
    Series Statement: CRREL Report 84-17
    Language: English
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  • 43
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/18
    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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  • 44
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/15
    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.
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    Pages: ii, 12 Seiten , Illustrationen
    Series Statement: CRREL Report 84-15
    Language: English
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  • 45
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Springer
    Call number: IASS 17.91092
    Type of Medium: Monograph available for loan
    Pages: VI, 198 S
    ISBN: 354009668X , 038709668X , 9783540096689 , 9783642618390
    Language: German
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  • 46
    Call number: ZSP-708-8
    In: SCAR report, No. 8
    Type of Medium: Series available for loan
    Pages: 40 Seiten
    Series Statement: SCAR Report 8
    Language: English
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  • 47
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    Monograph available for loan
    New York, NY : American Inst. of Physics
    Call number: M 17.91139
    Type of Medium: Monograph available for loan
    Pages: XIII, 566 S , Ill , 24 cm
    ISBN: 0883188597 ( )
    Classification:
    Physics
    Language: English
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  • 48
    Call number: ZSP-799-370
    In: Trudy Ordena Lenina Arktičeskogo i Antarktičeskogo Naučno-Issledovatelʹskogo Instituta, Tom 370
    Type of Medium: Series available for loan
    Pages: 163 Seiten , Illustrationen
    Series Statement: Trudy Ordena Lenina Arktičeskogo i Antarktičeskogo Naučno-Issledovatelʹskogo Instituta 370
    Language: Russian
    Note: In kyrillischer Schrift
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  • 49
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    Monograph available for loan
    Leipzig : Academy of Sciences of the GDR, Central Institute for Isotope and Radiation Research
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    Call number: AWI G6-19-93042-2
    In: Interregional Training Course on Radiochemistry, [Supplement]
    Type of Medium: Monograph available for loan
    Pages: 88 Seiten , Illustrationen
    Language: English
    Note: Contents Manual 2.2 The relative measurement of aktivity Lectures 1.3 Statistics / H. Baumbach 2.2 Sealed sources / K. Vormum 2.4 Energy dispersive x-ray fluorescence analysis / H.-K. Bothe 3.1 The use of carriers / H. Koch 4.3 Autoradiography / K. Freyer 6.1 Radiometric methods in environmental control / H.-J. Große
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  • 50
    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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  • 51
    Monograph available for loan
    Monograph available for loan
    Leipzig : Academy of Sciences of the GDR, Central Institute for Isotope and Radiation Research
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    Call number: AWI G6-19-93042-1
    In: Interregional Training Course on Radiochemistry, [Hauptband]
    Type of Medium: Monograph available for loan
    Pages: 248 Seiten , Illustrationen
    Language: English
    Note: Contents Manual 1.1 Beta measurements 1.2 Measurement of the energy spectrum and range of α-radiation with semiconductor detectors 1.3 Error and statistical tests 1.4 Basic experiments of gamma spectroscopy 2.1 Determination of certain elements in sedimental atmospheric dust by x-ray fluorescence analysis 2.2 Calibration and efficiencies (see Supplement) 2.3 Thin-layer chromatographic separation and test of the purity of labelled compounds 2.4 Separation of Thorium-234 from Uranium-238 2.5 Separation of 137Ca/137mBa by precipitation and sorption 3.1 Determination of phosphate by simple isotope dilution analysis and determination of Zn in MgSO4 by substoichiometric isotope dilution analysis 3.2 The Szilard-Chalmers effect 3.3 Determination of the Ag content in slags by instrumental neutron activation analysis 4.1 Isotope exchange of Ethyl Iodide and Sodium Iodide 4.2 Liquid scintillation counting of Carbon-14 and Tritium 4.3 Autoradiography - Demonstration of Autoradiographic techniques Lectures 1.1 Fundamentals of radioactivity / G. K. Vormum 1.2 Interaction of nuclear radiation with matter / G. K. Vormum 1.4 Equations of radioactive decay / G. K. Vormum 1.5 Radiation detectors / M. Geisler 2.1 Radiation spectroscopy / M. Geisler 2.5 Handling of radioisotopes / G. K. Vormum 2.7 Behaviour of radionuclides in very low concentrations / H. Koch 3.6 Particle sources / J. W. Leonhardt 4.2 Tracers in chemical kinetics / J. Dermietzel 4.4 Liquid Scintillation Counting (LSC) / R. Trettin 5.1 Isotopic tracers in biology / H. Hübner 5.2 Low-level counting / R. Trettin 5.4 Basic concepts of radioimmunoassay (RIA) / G. K. Vormum 6.2 Radionuclide generators / R. Otto
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  • 52
    Call number: PIK M 490-19-93048
    Type of Medium: Monograph available for loan
    Pages: XIII, 577 S , Illustrationen, Diagramme
    Series Statement: Physica 191,1-4
    Language: English
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  • 53
    Call number: PIK M 323-19-93050
    Type of Medium: Monograph available for loan
    Pages: X, 199 Seiten , Diagramme , 24 cm
    ISBN: 3764337338 ((Basel ...) , 0817637338 ((Boston)
    Series Statement: Progress in systems and control theory Vol. 16
    Language: Undetermined
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  • 54
    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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  • 55
    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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  • 56
    Call number: MOP 45174 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 55 Seiten , 20х28 см
    Language: Russian
    Note: In kyrillischer Schrift
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  • 57
    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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  • 58
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    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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  • 59
    Monograph available for loan
    Monograph available for loan
    Boston, Massachusetts : American Meteorological Society
    Call number: MOP 46673 / Mitte
    Type of Medium: Monograph available for loan
    Pages: XIV, 276 Seiten
    Language: English
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  • 60
    Call number: MOP 45042 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 296 Seiten , Illustrationen
    Series Statement: Akademie der Landwirtschaftswissenschaften der Deutschen Demokratischen Republik / Tagungsbericht Nr. 180
    Language: German
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  • 61
    Monograph available for loan
    Monograph available for loan
    Bonn : Bundesminister für Forschung u. Technologie, Referat Öffentlichkeitsarbeit
    Call number: M 19.92437
    Type of Medium: Monograph available for loan
    Pages: 134 Seiten , Illustrationen , 21 cm
    ISBN: 3881352112 (kart.)
    Language: German
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  • 62
    Monograph available for loan
    Monograph available for loan
    Bonn : Der Bundesminister für Forschung und Technologie, Referat Öffentlichkeitsarbeit]
    Call number: M 19.92438
    Type of Medium: Monograph available for loan
    Pages: 103 Seiten , Illustrationen
    Language: German
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  • 63
    Call number: AWI G6-18-91625
    In: Schriftenreihe Angewandte Geologie Karlsruhe, 13
    Type of Medium: Series available for loan
    Pages: XIV, 226 S. , graph. Darst.
    ISSN: 0933-2510
    Series Statement: Schriftenreihe angewandte Geologie Karlsruhe 13
    Language: German
    Note: Zugl.: Karlsruhe, Univ., Diss., 1991 , INHALT: KURZFASSUNG. - VORWORT. - ABBILDUNGSVERZEICHNIS. - TABELLENVERZEICHNIS. - 1. EINFÜHRUNG. - 1.1. Problemstellung. - 1.2. Stand der Forschung. - 2. THEORETISCHE GRUNDLAGEN. - 2.1. Stofftransport in porösen Medien. - 2.1.1. Hydrodynamische Prozesse. - 2.1.2. Physikalische, chemische und biologische Prozesse. - 2.2. Mathematisches Konzept bei Auswertung von Tracertransportvorgängen. - 3. VERSUCHSFELD "BÖCKINGER WIESEN". - 3.1. Hydrogeologische Rahmenbedingungen. - 3.1.1. Beschreibung der Grundwasserleiter. - 3.1.2. Hydraulische Verhältnisse. - 3.1.3. Hydrologische Bedingungen. - 3.2. Messnetz, Betriebszustände und Untersuchungsumfang. - 4. HYDROCHEMISCHE CHARAKTERISIERUNG DES UFERFILTRATIONSSYSTEMES. - 4.1. Grundwassertypen. - 4.2. Regionale und saisonale Variation in der Grundwasserbeschaffenheit. - 4.2.1. lnfiltrationsbedingungen. - 4.2.1.1. Regionaler Einflußbereich der Uferfiltration. - 4.2.1.2. Saisonale Schwankungen. - 4.2.1.3. Hydrochemische Veränderungen bei der Untergrundpassage. - 4.2.2. Hochwasserereignisse. - 4.2.3. Exfiltrationsverhältnisse. - 4.3. Generelles Schadstoffverteilungsmuster. - 4.4. Uferfiltratanteil. - 4.5. Mittlere Verweilzeit. - 5. EINSATZ REAKTIVER REFERENZTRACER ZUR SCHADSTOFFSIMULATION - LABORVERSUCHE. - 5.1. Materialien und experimentelle Methodik. - 5.1.1. Übersicht über die untersuchten Substanzen. - 5.1.2. Nachweismethodik. - 5.1.3. Versuchsanlagen. - 5.1.3.1. Aufbau der Durchlaufsäulenversuche. - 5.1.3.2. Beschreibung der Säulenfüllung. - 5.1.3.3. Charakterisierung der Durchströmungsflüssigkeit. - 5.1.3.4. Auswertung. - 5.2. Ergebnisse. - 5.2.1. Deuterium. - 5.2.2. Migrationsparameter der reaktiven Tracer. - 5.2.3. Reaktive Tracer im Vergleich zu ausgewählten Schwermetallen. - 5.2.4. Reaktive Tracer im Vergleich zu anionischen Tensiden. - 6. IN SITU VERSUCHE ZUR SCHADSTOFFSIMULATION. - 6.1. Markierungsversuch mit Eosin (1987). - 6.1.1. Durchführung. - 6.1.2. Eosinausbreitung im Testfeld. - 6.1.3. Migrationsparameter für Eosin im Vergleich zu dem idealen Tracer 18O. - 6.1.3.1. Mittlere Fließgeschwindigkeiten und scheinbare Dispersivitäten. - 6.1.3.2. Retardationstaktoren. - 6.2. Kombinierter Markierungsversuch (1988). - 6.2.1. Eingabe, Beprobungintervalle und Untersuchungsmethodik. - 6.2.2. Tracernachweise im Pumpbrunnen H. - 6.2.3. Migrationsverhalten von Pyranin, Naphthionat und Lithium (Eingabestelle 3054) im gesamten Testfeld. - 6.2.3.1. Tracerausbreitung. - 6.2.3.2. Migrationsparameter. - 6.2.3.3. Anmerkungen zum mathematischen Auswertekonzept. - 6.2.4. Uraninnachweis in den Grundwasserbeobachtungsstellen (Eingabestelle 3081). - 6.2.4.1. Regionale Verteilung im Testfeld. - 6.2.4.2. Fließzeiten, Dispersivitäten und Retardationstaktoren. - 6.3. Zusammenfassende Bewertung der Markierungsversuche. - 7. ZUSAMMENFASSUNG. - 8. LITERATURVERZEICHNIS.
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  • 64
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/31
    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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  • 65
    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.
    Type of Medium: Series available for loan
    Pages: ii, 8 Seiten , Illustrationen
    Series Statement: CRREL Report 83-32
    Language: English
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  • 66
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/33
    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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  • 67
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/3
    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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  • 68
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/4
    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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  • 69
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/5
    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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  • 70
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/7
    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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  • 71
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/6
    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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  • 72
    Monograph available for loan
    Monograph available for loan
    New York, NY [u.a.] : Wiley
    Associated volumes
    Call number: G 8116
    In: Chemical analysis, 27
    Type of Medium: Monograph available for loan
    Pages: XI, 489 S
    Edition: 2nd. ed.
    ISBN: 047102743X
    Series Statement: Chemical analysis 27
    Language: English
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  • 73
    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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  • 74
    Call number: ZSP-SCAR-570-16
    In: National Antarctic Research Report to SCAR, No. 16
    Type of Medium: Series available for loan
    Pages: 99 Seiten , Illustrationen
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 16
    Language: English
    Note: CONTENTS: I. National Committee for Antarctic Research, and National Operating Body. - II. Map of Stations. - Ill. Permanent Observatories, Regular Observations and Long-term Monitoring. - IV. Report on Highlights of Science Activities from Previous Reporting Period (1 Oct. 93 - 31 March 94). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - V. List of Permits and Rationale for Entry into SPAs and SSSIs. - VI. Prospectus of Planned Activities for Coming Reporting Period (1 April 94 - 31 March 95). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - VII. Future Activities Planned & Funded (beyond 31 March 95). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - VIII. Bibliography. - IX. List of Principal Investigators and Responsible Authorities.
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  • 75
    Call number: ZSP-SCAR-570-14
    In: National Antarctic Research Report to SCAR, No. 14
    Type of Medium: Series available for loan
    Pages: 133 Seiten , Illustrationen
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 14
    Language: English
    Note: CONTENTS: I. National Committee for Antarctic Research, and National Operating Body. - II. Map of Stations. - Ill. Permanent Observatories, Regular Observations and Long-term Monitoring. - IV. Report on Highlights of Science Activities from Previous Reporting Period (1 Oct. 91 - 31 March 92). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - V. List of Permits and Rationale for Entry into SPAs and SSSIs. - VI. Prospectus of Planned Activities for Coming Reporting Period (1 April 92 - 31 March 93). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - VII. Future Activities Planned & Funded (beyond 31 March 93). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - VIII. Bibliography. - IX. List of Principal Investigators and Responsible Authorities.
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  • 76
    Call number: ZSP-SCAR-570-13
    In: National Antarctic Research Report to SCAR, No. 13
    Type of Medium: Series available for loan
    Pages: 123 Seiten , Illustrationen
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 13
    Language: English
    Note: CONTENTS: I. National Committee for Antarctic Research, and National Operating Body. - II. Map of Stations. - Ill. Permanent Observatories, Regular Observations and Long-term Monitoring. - IV. Report on Highlights of Science Activities from Previous Reporting Period (1 Oct. 90 - 31 March 91). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - V. List of Permits and Rationale for Entry into SPAs and SSSIs. - VI. Prospectus of Planned Activities for Coming Reporting Period (1 April 91 - 31 March 92). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - VII. Future Activities Planned & Funded (beyond 31 March 92). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - VIII. Bibliography. - IX. List of Principal Investigators and Responsible Authorities.
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  • 77
    Call number: ZSP-SCAR-570-12
    In: National Antarctic Research Report to SCAR, No. 12
    Type of Medium: Series available for loan
    Pages: 83 Seiten , Illustrationen
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 12
    Language: English
    Note: Beilage unter dem Titel: SCAR : Wissenschaftliches Komitee für Antarktisforschung , Beilage unter dem Titel: Deutsche Mitglieder in SCAR-Gruppen = German members in SCAR Groups , Beilage unter dem Titel: Corrigendum / German Antarctic Research Report to SCAR, No. 12 - 1990 , Beilage unter dem Titel: SCAR Bulletin : No. 99, October 1990 ; Stations of SCAR nations operating in the Antarctic, winter 1990 , CONTENTS: I. National Committee for Antarctic Research, and National Operating Organization/Agency. - II. Map of Stations. - Ill. Permanent Observatories, Regular Observations and Long-term Monitoring. - IV. Report on Highlights of Science Activities from Previous Reporting Period (1 Oct. 89 - 31 March 90). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences. - V. List of Permits and Rationale for Entry into SPAs and SSSIs. - VI. Prospectus of Planned Activities for Coming Reporting Period (1 April 90 - 31 March 91). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences. - VII. Future Activities Planned & Funded (beyond 31 March 91). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences. - VIII. Bibliography. - IX. List of Principal Investigators and Responsible Authorities.
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  • 78
    Monograph available for loan
    Monograph available for loan
    Potsdam : Meteorologischer Dienst der DDR, Zentrale Wetterdienststelle
    Call number: MOP 47594 / Mitte
    Type of Medium: Monograph available for loan
    Language: German
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  • 79
    Call number: MOP 46080 / Mitte
    In: 82-16, Research reports / International Institute for Applied Systems Analysis
    Type of Medium: Series available for loan
    Pages: 59 Seiten , Illustrationen
    ISBN: 3704500364
    Series Statement: Research reports / International Institute for Applied Systems Analysis 82-16
    Language: English
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  • 80
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/17
    In: CRREL Report, 82-17
    Description / Table of Contents: Seismic P and SH wave refraction experiments at the NATO RSG-11 test site in Munster Nord, Federal Republic of Germany, reveal the presence of a nearly horizontal, three-layer velocity structure. The upper layer, composed of un­consolidated glacial till, is 1 m thick and has P (compressional) and SH (shear-horizontal) wave velocities of 240 and 165 m s-1. The second layer, made up of similar, more compacted material, is 9.5 m thick, with a P wave velocity of 470 m s-1 and an SH wave velocity of 275 m s-1. The third layer, interpreted as the groundwater table, is located at a depth of 10.5 m and has a P wave velocity of 1590 m s-1. The SH wave velocity of this layer is controlled by the matrix material and is the same as that of the second layer. A single, unreversed observation indicated a fourth layer at a depth of about 20 m, but the existence of this layer remains unconfirmed. The observed fundamental mode Love wave dispersion is in agreement with the theoretical dispersion predicted by the refraction velocities. Computed partial derivatives of phase velocity with respect to shear wave velocity show, for the frequencies observed, that the dispersion confirms the thicknesses and velocities of the two upper layers and is not affected by the deeper structure.
    Type of Medium: Series available for loan
    Pages: iv, 33 Seiten , Illustrationen
    Series Statement: CRREL Report 82-17
    Language: English
    Note: CONTENTS Abstract Preface Introduction Refraction experiments Procedure Equipment Results P waves Low velocity zone SH waves Surface wave experiments Summary and discussion Literature cited Appendix A: P wave refraction data Appendix B: SH wave refraction data. Appendix C: Surface wave dispersion calculations
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  • 81
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/18
    In: CRREL Report, 82-18
    Description / Table of Contents: Snow and ice control on highways has come to rely heavily on the use of sodium chloride to maintain a trafficable surface for unimpeded movement. Empirical approaches have led to a wide range of application rates, some clearly excessive, but justified on the ground of safety and expediency. The combination of environmental degradation from the huge quantities of salt entering the environment, along with the increased cost of salt itself and the cost of its application have spurred the search for more precise knowledge of the proper amount of salt to apply to a pavement, considering a range of environmental, traffic and chemical parameters. Since controlled tests in the field are extremely difficult to make, a circular test track of three test pavements, dense-graded asphaltic concrete (DGA), open-graded asphaltic concrete (DGA) and portland cement concrete (PCC), was constructed in a coldroom. Natural snow and ice were applied to the pavements and an instrumented slipping wheel was driven over the surfaces to generate frictional forces. These forces were measured and then used to evaluate the response to salt application with time for three test temperatures. OGA had the lowest friction values at a temperature near the freezing point, but higher initial values or more rapidly increasing values than DGA and PCC following salt application at the two lower temperatures. Optimum application rate of salt on PCC and DGA lies between 100 and 300 lb/lane mile (LM), and a higher rate resulted in slight or no improvement in friction. DGA showed anomalous results: lower friction for 300 Ib/LM and higher friction for both 100 and 500 Ib/LM.
    Type of Medium: Series available for loan
    Pages: vi, 55 Seiten , Illustrationen
    Series Statement: CRREL Report 82-18
    Language: English
    Note: CONTENTS Abstract Preface Introduction Objectives Background Approach Influencing factors Field factors Laboratory Laboratory trafficking tests Force measurement and coefficient of friction Test tire slip Surface friction gauge Test procedure British portable tester Experimental results Conclusions Recommendations Literature cited Appendix A. Test pavements Appendix B. Pennsylvania State University field study Appendix C. Rochester Institute of Technology field study
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  • 82
    Call number: MOP 45579 / Mitte
    In: Topics in current physics, 28
    Type of Medium: Monograph available for loan
    Pages: IX, 152 Seiten , Illustrationen
    ISBN: 3540112294 , 0387112294
    Series Statement: Topics in current physics 28
    Language: English
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  • 83
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/2
    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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  • 84
    Monograph available for loan
    Monograph available for loan
    London : H.M.S.O
    Call number: AWI G10-18-91809
    Type of Medium: Monograph available for loan
    Pages: 45 Seiten , Karte , 30 cm
    Edition: 2nd ed
    ISBN: 0115917179 (pbk.)
    Language: English
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  • 85
    Monograph available for loan
    Monograph available for loan
    Berlin : [Humboldt-Universität zu Berlin, Sektion Geographie, Bereich Klimatologie]
    Call number: MOP 47831 / Mitte
    Type of Medium: Monograph available for loan
    Language: German
    Note: Diplomarbeit, Berlin, Humboldt-Universität zu Berlin, 1992
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  • 86
    Call number: MOP 47697/3 / Mitte
    In: Verifikationsbericht / Deutscher Wetterdienst, Abteilung Synoptische Meteorologie, Nr. 3
    Type of Medium: Series available for loan
    Series Statement: Verifikationsbericht / Deutscher Wetterdienst, Abteilung Synoptische Meteorologie 3
    Language: German
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  • 87
    Call number: AWI G3-18-91845
    In: Nachrichten der Akademie der Wissenschaften in Göttingen : 2, Mathematisch-Physikalische Klasse, 2/1992
    Type of Medium: Series available for loan
    Pages: 60 S , Ill., graph. Darst., Kt , 25 cm
    Series Statement: Nachrichten der Akademie der Wissenschaften in Göttingen : 2, Mathematisch-Physikalische Klasse 2/1992
    Language: German
    Note: Inhaltsverzeichnis: I. Einleitung: Forschungsgegenstand, Fragestellung, Untersuchungsraum und Untersuchungsmethoden. - II. Hydrologische Parameter der Schneeschmelze. - 1. Die Flußgebiete Andy Creek und Douglas Creek. - 2. Die Schneedecke und Schnee-Ablation. - 3. Das Aufeis. - 4. Der nivale Abfluß. - 5. Die Wassertemperatur. - 6. Die Aufeis-Ablation. - III. Mikroklimatische Parameter der Schneeschmelze. - 1. Der Gang des Niederschlages. - 2. Der Gang der Lufttemperatur. - 3. Der Gang der Einstrahlung. - 4. Der Gang der Bodentemperatur und -auftautiefe. - IV. Die fluviale Morphodynamik während der Schneeschmelze. - V. Schlußfolgerungen: Die periglazial-fluviale Morphodynamik und ihre klimatisch-hydrologischen Voraussetzungen. - Literaturverzeichnis.
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  • 88
    Call number: MOP 47852 / Mitte
    Type of Medium: Monograph available for loan
    Language: German
    Note: Diplomarbeit, Humboldt-Universität zu Berlin, 1993
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  • 89
    Call number: MOP 46175 / Mitte
    Type of Medium: Monograph available for loan
    Language: English
    Location: MOP - must be ordered
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  • 90
  • 91
    Monograph available for loan
    Monograph available for loan
    Dordrecht : Springer | New York [u.a.] : Chapman & Hall
    Call number: AWI G3-20-93489
    Description / Table of Contents: Frozen Ground Engineering first introduces the reader to the frozen environment and the behavior of frozen soil as an engineering material. In subsequent chapters this information is used in the analysis and design of ground support systems, foundations, and embankments. These and other topics make this book suitable for use by civil engineering students in a one-semester course on frozen ground engineering at the senior or first-year-graduate level. Students are assumed to have a working knowledge of undergraduate mechanics (statics and mechanics of materials) and geotechnical engineering (usual two-course sequence). A knowledge of basic geology would be helpful but is not essential. This book will also be useful to advanced students in other disciplines and to engineers who desire an introduction to frozen ground engineering or references to selected technical publications in the field. BACKGROUND Frozen ground engineering has developed rapidly in the past several decades under the pressure of necessity. As practical problems involving frozen soils broadened in scope, the inadequacy of earlier methods for coping became increasingly apparent. The application of ground freezing to geotechnical projects throughout the world continues to grow as significant advances have been made in ground freezing technology. Freezing is a useful and versatile technique for temporary earth support, groundwater control in difficult soil or rock strata, and the formation of subsurface containment barriers suitable for use in groundwater remediation projects.
    Type of Medium: Monograph available for loan
    Pages: x, 352 Seiten , Illustrationen
    ISBN: 978-1-4757-2292-5
    Language: English
    Note: Contents PREFACE CHAPTER 1. FROZEN GROUND 1.1 Frozen ground support systems Frozen earth wall Design considerations 1.2 Seasonally and perennially frozen ground Cold regions: definition Subsurface temperatures Active layer, Permafrost 1.3 Terrain features in permafrost areas Ground ice features Patterned ground 1.4 Engineering considerations Freezing process Thawing of frozen ground Frost action Useful aspects of frozen ground Ice as a construction material Problems CHAPTER 2. PHYSICAL AND THERMAL PROPERTIES 2.1 Composition and structure of frozen ground Soil types Phase relationships Ice phase Particle size and size distribution Consistency of cohesive soils 2.2 Soil classification Unified soil classification system Frozen soil classification 2.3 Water-ice phase relationships Unfrozen water in frozen soil Effect of solutes on freezing 2.4 Soil frost action Frost action process Frost susceptibility of soils Frost-heave forces Freeze-thaw effects on permeability 2.5 Thermal properties Thermal conductivity Heat capacity Thermal diffusiuity Latent heat of fusion Thermal expansion (or contraction) Problems CHAPTER 3. HEAT FLOW IN SOILS 3.1 Heat transfer at the ground surface Climatic factors Freezing (or thawing) indices Surface n-factor 3.2 Seasonal ground freezing (or thawing) Frost depth Thawing of frozen soil Design implications 3.3 Temperature below cooled (or heated) areas Steady state heat flow Transient temperatures Periodic heat flow 3.4 Thermal analysis: frozen ground support systems Single freeze pipe Wall formation Multiple rows of freeze pipes Problems CHAPTER 4. THAW BEHAVIOR OF FROZEN GROUND 4.1 Thaw settlement 4.2 Consolidation of thawing soils Thaw consolidation Residual stress in thawing soils 4.3 Thaw-consolidation in some layered systems Two layer soil problems Compressible soil ouer discrete ice layers Problems CHAPTER 5. MECHANICAL PROPERTIES OF FROZEN SOILS 5.1 Stress-strain-time and strength behavior Hydrostatic pressure effect on frozen soil behavior Shear stress effect on frozen soil behavior 5.2 Factors influencing creep and strength Creep of frozen soil under constant stress Stress-strain behavior under constant strain rate Ice content effect on strength Normal pressure effect on strength Strain rate effect on strength Temperature effect on strength Frozen soil behauior at cryogenic temperatures 5.3 Analytical representation of creep and strength data General creep equation Strength of frozen soils Comparison with Vyalou's creep and strength equations Normal pressure effect on creep and strength Salinity effect on frozen soil creep and strength 5.4 Frozen soil behavior in uniaxial tension 5.5 Deformability of frozen soils 5.6 Compressibility of frozen soils Problems CHAPTER 6. CONSTRUCTION GROUND FREEZING 6.1 Design considerations Ground freezing applications Soil conditions Groundwater flow Ground movement 6.2 Freezing methods and system installation Primary plant and pumped loop secondary coolant Expendable liquid refrigerant Installation of the cooling system 6.3 Structural design of frozen earth walls Curved walls Straight walls and combinations Tunnels Finite-element method 6.4 Monitoring requirements Freeze hole deviation Temperature Frost boundary location and wall thickness 6.5 Other construction considerations Protection of exposed frozen earth Concrete placement against frozen earth Problems CHAPTER 7. FOUNDATIONS IN FROZEN SOILS 7.1 General considerations Foundations in seasonally frozen ground Foundations in permafrost 7.2 Shallow foundations Selection of foundation method Design of shallow foundations Bearing capacity Settlement considerations 7.3 Pile foundations Pile types Pile placement Pile freezeback Axially loaded piles Laterally loaded piles Anchors in frozen ground 7.4 Frost-heave forces on foundations Tangential forces on a vertical surface Design for frost heave Problems CHAPTER 8. STABILITY OF SOIL MASSES IN COLD REGIONS 8.1 Landslides in permafrost: classification 8.2 Slopes in thawing permafrost Low-angle planar flows Slides 8.3 Slopes in frozen soils 8.4 Slope stabilization methods Construction and design techniques Stabilization of planar slides Stabilization of cut slopes Problems CHAPTER 9. EARTHWORK IN COLD REGIONS 9.1 Site considerations Drainage Thermal and frost action factors Subsurface conditions Material sources 9.2 Excavation and transport Mechanical excavation Drilling and blasting Thawing frozen soil Hydraulic dredging 9.3 Field placement Compaction Placement in water 9.4 Water-retaining embankments on permafrost Unfrozen embankments Frozen embankments Maintaining the frozen state Thermal and stability considerations 9.5 Embankment performance Frost heave Settlement Stability Artificial islands CHAPTER 10. FIELD INVESTIGATIONS 10.1. Sampling frozen ground Sampling methods Sample protection 10.2 Ground-temperature measurement Temperature sensors and measuring equipment 10.3 Field testing of frozen soils Field test methods Pressuremeter test Deep static cone penetration test Other types of field tests 10.4 Geophysical methods Seismic velocities in frozen ground Electrical properties of frozen ground Geophysical techniques used in frozen ground High-frequency electrical methods Borehole logging in permafrost APPENDIX A. SYMBOLS APPENDIX B. SI UNITS APPENDIX C LABORATORY AND FIELD TESTS ON FROZEN SOILS C1 Handling, storage, and machining of specimens prior to testing C2 Uniaxial compression test C3 Uniaxial tensile test C.4 Salinity of soil pore water C5 Thermosiphon C6 Pile load test in permafrost REFERENCES AUTHOR INDEX SUBJECT INDEX
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  • 92
    Monograph available for loan
    Monograph available for loan
    Potsdam : Meteorologsiches Hauptobservatorium
    Call number: MOP 47549 / Mitte
    Type of Medium: Monograph available for loan
    Language: German
    Location: MOP - must be ordered
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  • 93
    Monograph available for loan
    Monograph available for loan
    Freiburg : Lingg Druck
    Call number: MOP 47855 / Mitte
    Type of Medium: Monograph available for loan
    Pages: VII, 164 Seiten , Illustrationen
    Language: German
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  • 94
    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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  • 95
    Monograph available for loan
    Monograph available for loan
    Berlin : Deutsche Meteorologische Gesellschaft
    Call number: MOP 47732 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 153 Seiten , Illustrationen
    ISBN: 3928903004
    Language: German
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  • 96
    Monograph available for loan
    Monograph available for loan
    Hannover : Niedersächsisches Landesamt für Bodenforschung
    Call number: MOP 47096 / Mitte
    Type of Medium: Monograph available for loan
    Language: German
    Location: MOP - must be ordered
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  • 97
    Monograph available for loan
    Monograph available for loan
    Potsdam : Deutscher Wetterdienst
    Call number: MOP 47626 / Mitte
    Description / Table of Contents: Die Weiterführung der Vorhersagemodellierung an der ZWD mit der Zielstellung der RT-Ausbreitungsrechnung und der Weiterentwicklung höher aufgelöster regionaler Vorhersagesysteme im Rahmen einer abgestimmten Zusammenarbeit mit dem DWD setzt ein modernes ausbaufähiges Mesoanalysemodell voraus, daß in einer 100 km Grundversion in Standardelementen und auf Standardflächen realisiert wurde und einen Ausgangspunkt für sowohl operative Spezialanwendungen an der ZWD als auch inhaltliche Beiträge zu speziellen Problemen im Europa- und Deutschlandmodell des DWD darstellt.
    Type of Medium: Monograph available for loan
    Pages: 3 Anlagen
    Language: German
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  • 98
    Monograph available for loan
    Monograph available for loan
    Leningrad : Gidrometeoizdat
    Call number: MOP 45344 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 222 Seiten , 1 Beilage
    Language: Russian
    Note: In kyrillischer Schrift
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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-201-80/28
    In: CRREL Report, 80-28
    Description / Table of Contents: This report investigates the feasibility of clearing ice from the shipping channel of the St. Marys River. Four basic concepts are investigated: disposal under the ice, disposal on top of the ice, slurrying, and rafting. Each technique was found to have application in limited portions of the river with the exception of disposal on top of the adjacent ice sheet which is deemed feasible throughout the river system. Disposal onto the adjacent ice sheet will increase the free stream velocity less than 1.0 ft/s (30.5 cm/s) and raise the water level less than 1.0 ft (0.30 m). Further model and field tests are recommended to validate the findings of this report.
    Type of Medium: Series available for loan
    Pages: ii, 13 Seiten , Illustrationen
    Series Statement: CRREL Report 80-28
    Language: English
    Note: CONTENTS Abstract Preface Introduction The Environment Ice Growth and Accumulation Natural Ice Transport Accumulation Sites 1. Under-ice accumulation 2. Accumulation on top of the ice Evaluation of Ice Disposal Techniques 1. General 2. Disposal by displacement under the remaining ice sheet 3. Disposal by ejection on top of adjacent ice cover 4. Disposal by slurrying 5. Disposal by rafting Conclusions and Recommendations Literature Cited
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  • 100
    Call number: MOP 46551 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 236 Seiten
    Language: Russian
    Note: In kyrillischer Schrift
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