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  • Books  (1,495)
  • English  (1,487)
  • Spanish  (9)
  • 1985-1989  (1,081)
  • 1980-1984  (419)
  • 1975-1979  (5)
  • 1987  (608)
  • 1986  (478)
  • 1984  (419)
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  • 1
    Monograph available for loan
    Monograph available for loan
    New York [u.a.] : Springer
    Call number: M 97.0392
    Type of Medium: Monograph available for loan
    Pages: X, 276 S.
    ISBN: 0387963782
    Series Statement: Materials research and engineering
    Classification:
    C.5.2.
    Language: English
    Location: Upper compact magazine
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  • 2
    Call number: Q 2348(25)
    In: Nabljudenija iskusstvennych sputnikov zemli
    Pages: 568 S.
    Language: English
    Branch Library: GFZ Library
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  • 3
    Call number: ZSP-558-14 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 368 S. : Ill., graph. Darst.
    Language: English
    Location: AWI Reading room
    Location: MOP - must be ordered
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  • 4
    Call number: ZSP-558-23 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 76 S. : Ill., graph. Darst.
    Language: English
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  • 5
    Call number: ZSP-558-20 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 505 S. : Ill., graph. Darst.
    Language: English
    Location: AWI Reading room
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  • 6
    Call number: MOP 45569 / Mitte ; MOP 45569/A1 / Mitte ; MOP 45569/A2 / Mitte ; MOP 45569/A3 / Mitte ; MOP 45569/A4 / Mitte
    Type of Medium: Monograph available for loan
    Uniform Title: Trudy XII Konferencii Baltijskich Okeanografov, Leningrad, 14-17 aprelja 1980 g., i VII Soveščanija ±Ekspertov po Vodnomu Balansu Baltijskogo Morja, Leningrad, 17-19 aprelja 1980 g.
    Language: English
    Location: MOP - must be ordered
    Location: MOP - must be ordered
    Location: MOP - must be ordered
    Location: MOP - must be ordered
    Location: MOP - must be ordered
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    Branch Library: GFZ Library
    Branch Library: GFZ Library
    Branch Library: GFZ Library
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  • 7
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Springer
    Associated volumes
    Call number: MOP 46747 / Mitte
    In: Physics and chemistry in space
    Type of Medium: Monograph available for loan
    Pages: IX, 334 S.
    ISBN: 3540153365 , 0-387-15336-5
    Series Statement: Physics and chemistry in space 13
    Uniform Title: Fotochimija atmosfer Marsa i Veneri
    Language: English
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  • 8
    Call number: MOP 43060/A / Mitte
    Type of Medium: Monograph available for loan
    Pages: 307 Seiten , Illustrationen , 23 cm
    Language: Russian , English
    Note: In kyrillischer Schrift , Zusammenfassungen in englischer Sprache , Inhaltsverzeichnis in englischer Sprache
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  • 9
    Series available for loan
    Series available for loan
    Associated volumes
    Call number: ZSP-691-1984
    In: Research in Svalbard
    Type of Medium: Series available for loan
    Pages: 180 S.
    Language: English
    Branch Library: AWI Library
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  • 10
    Monograph available for loan
    Monograph available for loan
    Copenhagen : Kommissionen for Videnskabelige Undersøgelser i Grønland
    Associated volumes
    Call number: ZSP-553-15
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 72 S. : Ill., zahlr. graph. Darst.
    ISBN: 8717052297
    Series Statement: Meddelelser om Grønland : Bioscience 15
    Language: English
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  • 11
    Call number: ZSP-558-13 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 261 S. : Ill., graph. Darst.
    Language: English
    Location: AWI Reading room
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  • 12
    Call number: ZSP-553-19
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 52 S. : Ill., graph. Darst
    ISBN: 8717055628
    ISSN: 0106-1046
    Series Statement: Meddelelser om Grønland : Geoscience 19
    Language: English
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  • 13
    Monograph available for loan
    Monograph available for loan
    Englewood Cliffs, N.J. : Prentice-Hall
    Associated volumes
    Call number: M 96.0538 ; 15/13860
    In: Proceedings
    Type of Medium: Monograph available for loan
    Pages: x, 216 S.
    ISBN: 0137229011
    Classification:
    B.5.
    Language: English
    Location: Upper compact magazine
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  • 14
    Monograph available for loan
    Monograph available for loan
    New York, N.Y. [u.a.] : Springer
    Call number: M 15.89123
    Description / Table of Contents: In the first edition of this book I tried to survey in brief compass the main ideas, methods, and discoveries of rational thermodynamics as it then stood, only five years after Messrs. COLEMAN & NOLL, while in Baltimore, had written the fundamental memoir that provided for the new science the one root theretofore wanting. A survey in the same style today would require an almost wholly new book, three or four times as long. As it was in 1968, again in 1983 a consecutive treatise restricted to the foundations would be premature, for at this moment they are under earnest discussion, probing analysis, and powerful attack by several students and from several directions. Because, although in the first edition I expressed some opinions I no longer hold and made some statements I should now recast or even re­ tract, it seems even yet to offer a simple introduction to some aspects of the field that remain current, I have chosen to reprint it unaltered except for emendation of slips and bettering of the English here and there.
    Type of Medium: Monograph available for loan
    Pages: XVI, 578 S , graph. Darst
    Edition: 2., ed. corr. and enl.
    ISBN: 0387908749 , 3540908749
    Language: English
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  • 15
    Monograph available for loan
    Monograph available for loan
    Minneapolis : University of Minnesota Press
    Call number: PIK N 630-15-89173
    Description / Table of Contents: A field guide to the wild flowers of western Canada and the adjoining Great Plains states of the United States, including illustrations of nearly 400 species.
    Type of Medium: Monograph available for loan
    Pages: 336 S. , zahlr. Ill.
    Edition: 2nd, rev. ed., 2. print.
    ISBN: 0816613508 : , 0816613516 (pbk.) :
    Language: English
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  • 16
    Monograph available for loan
    Monograph available for loan
    Berkeley [u.a.] : Univ. of California Press
    Call number: IASS 16.90440
    Type of Medium: Monograph available for loan
    Pages: XXXVII, 402 S. , graph. Darst.
    Edition: 1. paperback ed.
    ISBN: 0520057287 , 9780520057289
    Language: English
    Branch Library: RIFS Library
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  • 17
    Call number: AWI Bio-99-0305-2
    In: Atlas of North European vascular plants, 2
    Type of Medium: Monograph available for loan
    Pages: XI, S. 499 - 968
    ISBN: 3874292606
    Language: English
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  • 18
    Monograph available for loan
    Monograph available for loan
    Basingstoke, Hampshire [u.a.] : Macmillan Education
    Call number: PIK B 020-19-92667
    Type of Medium: Monograph available for loan
    Pages: XV, 193 Seiten , Diagramme
    ISBN: 0333365801 (hardcover) , 0333416074 (paperback)
    Language: English
    Note: Contents: 1 Basic concepts ; 2 Cost functions and the theory of the firm ; 3 Elasticity, Efficiency and the theory of the firm ; 4 The Cobb-Douglas function ; 5 The CES function ; 6 The translog function ; 7 Technological progress ; 8 From firms to industry: the Johansen Production Model ; 9 Empirical work on production functions ; Bibliography ; Index
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  • 19
    Call number: ZSP-201-86/6
    In: CRREL Report, 86-6
    Description / Table of Contents: Short-pulse radar profiles and waveform traces were recorded over natural, freshwater ice sheets and an artificially made, 1.6-m-diameter column of brash ice. The purpose was to study the feasibility of this type of radar to detect ice thickness, determine ice properties and distinguish ice forms. The radar utilized two antennas: one with a spectrum centered near 900 MHz and a second more powerful one near 700 MHz. Distinct top and bottom reflections from several ice sheets were produced by both antennas, but the value of dielectric permittivity calculated from the time of delay of the reflections varied between sheets as one ice sheet was ready to candle and contained free water. The brash ice distorted signals and allowed no discernible bottom return. The lower frequency antenna also gave returns from the lake bottom (separated from the ice bottom by about 1 m of water), which could allow ice thickness to be determined indirectly. The report concludes that these antennas can be used to determine sheet ice thickness and to supply information to help in the detection of brash ice. The water content of an ice sheet may also be estimated if independent studies show a correlation between dielectric permittivity and free water content.
    Type of Medium: Series available for loan
    Pages: iv, 15 Seiten , Illustrationen
    Series Statement: CRREL Report 86-6
    Language: English
    Note: CONTENTS Abstract Preface Introduction Materials and methods Sites and site preparation Results and discussion Lake Morey Post Pond Conclusions and recommendations Literature cited
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  • 20
    Call number: ZSP-201-86/3
    In: CRREL Report, 86-3
    Description / Table of Contents: Experiments to study the melting of a horizontal ice sheet with a flow of water above it were conducted in a 35 m long refrigerated flume with a cross section of 1.2x1.2 m. Water depth, temperature, and velocity were varied as well as the temperature and initial surface profile of the ice sheet. The heat transfer regimes were found to consist of forced turbulent flow at high Reynolds numbers with a transition to free convection heat transfer. There was no convincing evidence of a forced laminar regime. The data were correlated for each of the regimes, with the Reynolds number, Re, or the Grashof number combined with the Reynolds number as Gr/Re to the 2.5 power used to characterize the different kinds of heat transfer. For water flowing over a horizontal ice sheet, the melting heat flux, for low flow velocities, was not found to drop below the value for the free convection case-488.5 W/sq m-as long as the water temperature exceeds 3.4 C. This is significant since the free convection melt values far exceed those for laminar forced convection. At the low flow velocities, the melting flux was not dependent upon the fluid temperature until the water temperature dropped below 3.4 C, when q sub c = 135.7 (Delta T). In general, the heat transfer was found to significantly exceed that of non-melting systems for the same regimes. This was attributed to increased free stream turbulence, thermal instability due to the density maximum of water near 4 C, and the turbulent eddies associated with the generation of a wavy ice surface during the melting.
    Type of Medium: Series available for loan
    Pages: vii, 85 Seiten , Illustrationen
    Series Statement: CRREL Report 86-3
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Non-melting heat transfer relations for horizontal surfaces Heat transfer for melting horizontal ice sheets Instrument setup, data acquisition and test procedures General Instrumentation Data acquisition Computer software Test procedures Data output from computer Equations used for data analysis Control volume and melting surface Control of variables Error analysis Experimental results and discussion Wave formation Temperature and velocity profiles in open channel flow Correlation of data Summary Literature cited Appendix A: Conversion equations for data acquisition equipment Appendix B: Computer code for data acquisition and analysis Appendix C: Typical test output Appendix D: Thermal properties of water and ice Appendix E: Error analysis Appendix F: Summary of test conditions Appendix G: Experimental data and calculated quantities, with inlet length
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  • 21
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-86/9
    In: CRREL Report, 86-9
    Description / Table of Contents: The bulk aerodynamic transfer coefficients for sensible (C sub H) and latent (C sub E) heat over snow and sea ice surfaces are necessary for accurately modeling the surface energy budget but are very difficult to measure. This report therefore presents a theory that predicts C sub H and C sub E as functions of the wind speed and a surface roughness parameter. The crux of the model is establishing the interfacial sublayer profiles of the scalars, temperature and water vapor, over aerodynamically smooth and rough surfaces. These interfacial sublayer profiles are delivered from surface-renewal model in which turbulent eddies continually sweep down to the surface, transfer scalar contaminants across the interface by molecular diffusion, and then burst away. Matching the interfacial sublayer profiles with the usual semilogarithmic inertial sublayer profiles yields the roughness lengths for temperature and water vapor. With these and a model for the drag coefficient over snow and sea ice based on actual measurements, the transfer coefficients are predicted. C sub E is always a few percent larger than C and H. Both decrease monotonically with increasing wind speed for speeds above 1 m/s, both increase at all winds speeds as the surface gets rougher. Both, nevertheless, are almost between 0.0010 and 0.0015.
    Type of Medium: Series available for loan
    Pages: vi, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 86-9
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Aerodynamically rough surface Aerodynamically smooth surface Scalar transfer coefficients Conclusions Literature cited
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  • 22
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-86/8
    In: CRREL Report, 86-8
    Description / Table of Contents: In this work, numerical computations of heat transfer for freezing a shaft wall have been conducted. Both fixed mesh and deforming mesh finite-element methods are used. In the fixed mesh method, latent heat effects are accounted for through a δ function in the apparent heat capacity. In the deforming mesh method, an automatic mesh-generation technique with transfinite mappings is used, and in this method two different approaches are taken to evaluate the movement of the interface. The freeze-pipes are considered as point sources with irregular distribution. The advancement of the inner and outer boundaries of the frozen wall is found to be in agreement with the previously computed results
    Type of Medium: Series available for loan
    Pages: iii, 31 Seiten , Illustrationen
    Series Statement: CRREL Report 86-8
    Language: English
    Note: CONTENTS Abstract Preface Introduction Basic finite-element formulas Description of problem Finite-element equation-fixed mesh Finite-element equation-deforming mesh Transfinite mapping technique Computations and conclusions Literature cited Appendix A : Point heat sources Appendix B: Evaluation of the integral including latent heat (fixed mesh) Appendix C: Specification of [K] -deforming mesh Appendix D: Specifying δΤ/δn and the direction of mj for method I Appendix E: Procedures of method 2 Appendix F: Explanation of programs
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  • 23
    Monograph available for loan
    Monograph available for loan
    Cambridge : British Antarctic Survey
    Call number: AWI E3-89-0106
    Type of Medium: Monograph available for loan
    Pages: 156 Seiten , 29 cm
    Edition: First edition: June 1987
    ISBN: 0856651230
    Language: English
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  • 24
    Call number: ZSP-SCAR-570-9
    In: National Antarctic Research Report to SCAR, No. 9
    Type of Medium: Series available for loan
    Pages: 34 Seiten
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 9
    Language: English
    Note: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Members of Permanent Working Groups and Groups of Specialists of SCAR. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 1986 - October 1987. - II. Planned Activities, October 1987 - October 1988. - References. - Addenda to Former Reports. - Index of Activities.
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  • 25
    Call number: ZSP-201-86/13
    In: CRREL Report, 86-13
    Description / Table of Contents: Stress-deformation data for six granular soils ranging from sandy silt to dense-graded crushedstone were obtained from in-situ tests and laboratory tests. Surface deflections were measured in the in-situ tests, with repeated-load plate-bearing and falling-weight deflectometer equipment, when the six granular soils were frozen, thawed, and at various stages of recovery from thaw weakening. The measured deflections were used to judge the validity of procedures developed for laboratory triaxial tests to determine nonlinear resilient moduli of specimens in the frozen, thawed, and recovering states. The validity of the nonlinear resilient moduli, expressed as functions of externally applied stress and moisture tension, was confirmed by using the expressions tocalculate surface deflections that were found to compare well with deflections measured in the in-situ tests. The tests on specimens at various stages of recovery are especially significant because they show a strong dependence of the resilient modulus on moisture tension, leading to the conclusion that predictions or in-situ measurements of moisture tension can be used to evaluate expected seasonal variation in the resilient modulus of granular soils.
    Type of Medium: Series available for loan
    Pages: iv, 148 Seiten , Illustrationen
    Series Statement: CRREL Report 86-13
    Language: English
    Note: CONTENTS Abstract Preface Introduction Test sections Installing instruments and sampling Laboratory tests Asphalt concrete Base, subbase and subgrade soils Data analysis for base, subbase and subgrade soils Field tests Analysis of plate loading tests Analytical approach Results Discussion Conclusions Literature cited Appendix A: Field data Appendix B: Ground temperatures, moisture tension, water table and freezing iso-therms prevailing during plate loading tests Appendix C: Measured surface deflections compared with deflections calculated by NELAPAV Appendix D: Resilient moduli and supporting data calculated by NELAPA V at radius 0.0, taxiways A and B.
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  • 26
    Call number: ZSP-201-86/18
    In: CRREL Report, 86-18
    Description / Table of Contents: Findings from a six-year yield and laboratory program of frost action research in four principal areas are summarized. Research on the first topic, frost susceptibility index tests, led to selection of the Corps of Engineers frost design soil classification system as a useful method at the simplest level of testing. At a much more complex level, a new freezing test combined with a CBR test after thawing is recommended as an index of susceptibility to both frost heave and thaw weakening. Under the second topic, a soil column and dual gamma system were developed and applied to obtain soil data used in improving and validating a mathematical model of frost heave, the objective of the third research topic. The model was effectively improved, a probabilistic component was added, and it was successfully tested against field and laboratory measurements of frost heave. A thaw consolidation algorithm was added, which was shown to be useful in predicting the seasonal variation in resilient modulus of granular soils, the objective of the fourth topic. A laboratory testing procedure was developed for assessing the resilient modulus of thawed soil at various stages of the recovery process, as a function of the applied stress and the soil moisture tension, which increases as the soil gradually desaturates during recovery. The procedure was validated by means of appropriate analyses of deflections measured on pavements by a falling-weight deflectometer. Frameworks for implementing findings from the principal research topics are outlined. Keywords: Airfields, Freezing thawing, Frost heave, Frozen soil, Resilient modulus, Roads.
    Type of Medium: Series available for loan
    Pages: v, 52 Seiten , Illustrationen
    Series Statement: CRREL Report 86-18
    Language: English
    Note: Contents Abstract Preface Introduction Field test sites Frost-susceptibility index testing Index tests selected Laboratory test results Conclusions Soil column and dual gamma system Design features Test results Mathematical model of frost heave and thaw settlement Model development Numerical approach Probabilistic concepts Model verification Discussion Seasonal variation in the resilient modulus of granular soils Characterization by laboratory testing Field verification Summary of predictive approach Simulating frost heave and pavement deflection Method of evaluation Results and discussion Summary of findings Frost-susceptibility index tests Soil column and dual gamma system Mathematical model of frost heave and thaw settlement Seasonal variation in resilient modulus of granular soils Implementation of research findings Corps of engineers frost design soil classification system New laboratory freeze-thaw test Frost-heave model Repeated-load triaxial test on frozen and thawed soil Evaluation of seasonal variation of resilient modulus Literature cited
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  • 27
    Call number: ZSP-201-87/6
    In: CRREL Report, 87-6
    Description / Table of Contents: Two-phase dielectric mixing model results are presented showing the electromagnetic properties of sea ice versus depth. The modeled data are compared with field measurements and show comparable results. It is also shown how the model data can be used in support of impulse radar and airborne electromagnetic(AEM) remote sensing of sea ice. Examples of the remote measurement of sea ice thickness using impulse radar operating in the 80- to 300-MHz frequency band and low-frequency (500 to 30,000 Hz) sounding techniques are presented and discussed. Keywords: Polar regions; Radar pulses.
    Type of Medium: Series available for loan
    Pages: vii, 55 Seiten , Illustrationen
    Series Statement: CRREL Report 87-6
    Language: English
    Note: Contents Abstract Preface Nomenclature Introduction Sea ice growth and structure Model sea ice Brine salinity Seawater and model brine conductivity Complex dielectric constant of brine Electromagnetic properties of model sea ice at 100 MHz Electromagnetic properties of model sea ice at 100 and 500 MHz and 1 and 5 GHz Example of impulse radar sea ice profiling results Example of frequency-domain electromagnetic sea ice thickness sounding Concluding remarks Literature cited
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  • 28
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-87/10
    In: CRREL Report, 87-10
    Description / Table of Contents: Uniaxial constant-stress and constant-strain-rate compression tests were conducted on more than 200 remolded, saturated, frozen specimens of Fairbanks silt under various conditions. A series of curves of stress vs strain rate for various temperatures of strain rates ranging from about 6x10-2 to 10-8s-1show a close strength correspondence between the constant-stress and-costant strain-rate tests. All of these "complete" stress vs strain rate curves could not be described by a single power law or exponential equation, indicating that different deformation mechanisms are dominant within different ranges of strainrate Two critical strain rates for distinguishing between the different deformation mechanisms were ob-served to be near 10- 3 and 10-6 s-1 for the medium-dense frozen Fairbanks silt. The former indicates the transition from ductile failure to moderate brittle fracture as strain rate increases, while the latter indicates the transition from dislocation creep to glide creep (by the authors' definition). Based on the change in flow law, two fundamental creeps were classified: short-term creep, which is governed by glide creep, and long-term creep, which is governed by dislocation creep. The failure criterion of frozen silt has a general form of em x tm = Ef, where m depends only on density, and tm is in minutes if m is not 1. The failure strain Ef was not sensitive to temperature and strain rate over a certain range of strain rates, but it was very sensitive to density. Assur's creep model (1980) for ice was used to fit the creep data in this study. It works well for short-term creep but does not fit as well for long-term creep. The rate process theory was applied to the creep data. A very high value of experimental activation energy was obtained for lower stresses, and a very high value of apparent activation energy was observed for higher temperatures. The peak compressive strength was very sensitive to temperature and strain rate but relatively insensitive to density. While the initial tangent modulus is not-sensitive to strain rate, it increases with decreasing temperature and density.
    Type of Medium: Series available for loan
    Pages: vi, 75 Seiten , Illustrationen
    Series Statement: CRREL Report 87-10
    Language: English
    Note: CONTENTS Abstract Preface Introduction Review of previous work Specimen preparation Material Molding Testing procedure and apparatus Test results Definition of strain and stress Definition of creep failure Definition of failure in constant-strain-rate tests Definition of initial yield strength Determination of initial tangent modulus and 50% peak strength modulus Creep behavior General nature of the creep process and the failure mode Minimum creep rate Time to creep failure Relationship between t, and tm Creep failure strain and failure criterion Creep model and prediction of creep strain Strength behavior General stress-strain behavior and failure mode Peak compressive strength Initial yield strength Failure strain Initial yield strain Initial tangent modulus 50% peak strength modulus Correspondence between constant-stress tests and constant-strain-rate tests Conclusions Literature cited Appendix A: Unfrozen water content data Appendix B: Physical properties of samples tested
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  • 29
    Call number: ZSP-201-87/14
    In: CRREL Report, 87-14
    Description / Table of Contents: During February and March 1980 the physical properties of Weddell Sea pack ice were investigated via core drilling of 66 floes located along the transect of 600 nautical miles from 64°S to 74°S latitude at roughly 40°W longitude. These studies revealed widespread frazil ice in amounts not known to exist in Arctic sea ice of comparable age and thickness. It is estimated from structure studies of 62 of the 66 floes that 54% of the total ice production of the Weddell Sea is generated as frazil. The disposition and exceptional thickness of the frazil show that mechanisms other than surface turbulence effects are involved and imply that the circulation and structure of the water in the upper levels of the Weddell Sea are significantly different from those in the Arctic basin. Salinities of both first-year and multi-year floes are notably higher than those of their Arctic counterparts because summer surface melting is rare or absent in the Weddell Sea; in the Arctic, downward percolating meltwater flushes through the ice and lowers its salinity. Fluorescence was evaluated as a means of revealing biological activity in Weddell Sea pack ice. It proved useful as an index of combined living and dead material in the ice, but measurements failed to establish any consistent relationship between fluorescence and salinity as suggested be earlier work in the Weddell Sea.
    Type of Medium: Series available for loan
    Pages: iv, 80 Seiten , Illustrationen
    Series Statement: CRREL Report 87-14
    Language: English
    Note: CONTENTS Preface Introduction Sea ice structure and classification Logistics and field operations Analytical techniques Crystalline structure Fluorescence Results Salinity Crystalline structure Fluorescence Description of selected floes Conclusions Literature cited Appendix A: Floe descriptions
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  • 30
    Call number: MOP 45384/5 / Mitte
    In: WMO TD / World Meteorological Organization, No. 1
    Type of Medium: Series available for loan
    Pages: ii, 52 Seiten , 29 cm
    Series Statement: WMO TD / World Meteorological Organization 1
    Language: English
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  • 31
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-86/14
    In: CRREL Report, 86-14
    Description / Table of Contents: Three methods for determining the frost susceptibility of soils are evaluated in this report. These methods are the U.S. Army Corps of Engineers frost design soil classification system, a moisture-tension/hydraulic-conductivity test, and a laboratory freeze-thaw test. The Corps method, which is based on particle size, soil classification, and a laboratory freezing test, was found to be useful for identifying frost-susceptibility. The moisture-hydraulic-conductivity test was found to be unacceptable because it required too much time and its results correlated poorly with field observations. The freeze-thaw test was determined to be the most accurate of the methods studied, including the freeze test that is a part of the Corps method. The freeze-thaw test is thoroughly described. It includes indexes of both frost-heave susceptibility (heave rate) and thaw-weakening susceptibility (CBR after thawing). It also accounts for the effects of freeze-thaw cycling and is completely automated to improve the repeatability of the test results. It is suggested that the freeze-thaw test considered as a replacement for the Corps freezing test.
    Type of Medium: Series available for loan
    Pages: v, 56 Seiten , Illustrationen
    Series Statement: CRREL Report 86-14
    Language: English
    Note: Contents Abstract Preface Introduction Description of the selected sites Corps of engineers frost design soil classification system Moisture-tension/hydraulic-conductivity tests Freezing test Validation Description of test sites and materials Sample preparation Results and analysis of laboratory tests Corps of engineers frost design soil classification system Moisture-tension/hydraulic-conductivity test Freezing test Discussion Conclusions Recommendations Literature cited Appendix A: Summary of frost-susceptibility tests on natural soil
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  • 32
    Call number: ZSP-201-87/3
    In: CRREL Report, 87-3
    Description / Table of Contents: This report describes the structural analysis of multi-year sea ice samples that were tested in the first phase of a program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. Each test specimen is classified into one of three major ice texture categories: granular, columnar, or a mixture of columnar and granular ice. The crystallographic orientation, percent columnar ice, and grain size are then evaluated for the granular and/or columnar ice in the sample. Test results are interpreted with respect to these parameters. The overall composition of multi-year ridges is also considered, based on the extensive field sampling that was done in the program
    Type of Medium: Series available for loan
    Pages: iii, 40 Seiten , Illustrationen
    Series Statement: CRREL Report 87-3
    Language: English
    Note: CONTENTS Abstract Preface Introduction Sample analysis Continuous multi-year ridge core Tested multi-year ridge ice samples Tested multi-year floe ice samples Ice description Uniaxial constant-strain-rate compression tests Uniaxial constant-load compression tests Uniaxial constant-strain-rate tension tests Triaxial constant-strain-rate compression test Conclusions Literature cited Appendix A: Multi-year ridge sample data Appendix B: Multi-year floe sample data
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  • 33
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-87/13
    In: CRREL Report, 87-13
    Description / Table of Contents: Thermodynamic properties of electrolyte solutions change rapidly below 25C, but these properties are seldom measured over the low temperature range (below 0C), even though some salt solutions can remain unfrozen to -50C. The heat capacities of concentrated solutions (0.5-0.6 molal) of NaC-H2O were measured from 25C to -40C as part of a study to provide thermodynamic data of salt solutions for use in cold regions chemical and geophysical studies. A differential scanning calorimeter was used to measure specific heat capacity from cooling scans as a function of temperature and concentration. The heat capacity data were fit to the equations of Pitzer and coworkers to obtain activity and osmotic coefficients of NaC and H2O, respectively, below o C. Supercooling of the solutions was encouraged by using a fast scan rate (10d2/minute) so that specific heat could be measured to lower temperatures than would be possible if the solutions were allowed to equilibrate with the solid phases. The solubility of ice was calculated and compared to the experiment freezing point of NaC solutions.
    Type of Medium: Series available for loan
    Pages: ii, 16 Seiten , Illustrationen
    Series Statement: CRREL Report 87-13
    Language: English
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  • 34
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    Series available for loan
    Leipzig : Academy of Sciences of the GDR, Central Institute of Isotope and Radiation Research
    Associated volumes
    Call number: AWI G6-19-91927-4
    In: Third Working Meeting Radioisotope Application and Radiation Processing in Industry, Vol. 4
    Type of Medium: Series available for loan
    Pages: XIX, Seite1097-1458 , Illustrationen
    Language: English
    Note: VOLUME IV PART 2: POSTER CONTRIBUTIONS (continued) P. Rudolph, A. Lange, J. Flachowsky: THE DETERMINATION OF GOLD DEPTH DISTRIBUTION IN SEMICONDUCTOR SILICON - POTENTIAL INTERFERENCES INHERENT IN NAA BY RADIATION DAMAGES E. Hoentsch, J. Flachowsk: INVESTIGATION OF NICKEL-PLATING ON SEMICONDUCTOR SILICON WAFERS K. Mauersberger, J. Flachowsky: POSSIBLE LOSSES OF TRACE AND ULTRATRACE ELEMENTS DURING PRECONCENTRATION OF SEMICONDUCTOR-GRADE REAGENTS H. Wagler, J. Flachowsky: A SIMPLE CHEMICAL METHOD FOR THE SEPARATION OF PHOSPHORUS INTERFERING THE TRACE ELEMENT DETERMINATIONS BY NEUTRON ACTIVATION ANALYSIS IN HIGH DOPED SILICON WAFERS H.-J. Große, J . Adler, H.-R. Döring, H. Nietzschmann: APPLICATION OF THE AEROSOLIONIZATION GAS ANALYZER AIG IN MICROELECTRONICS M. Kosinova, P. Tendera: WEAR INVESTIGATION OF MACHINE PARTS BY CHARGED PARTICLES SURFACE ACTIVATION J. Kras: DETERMINATION OF SLIDE BEARINGS WEAR IN DIESEL ENGINES K. Eichhorn, P. Hammer, S. Turuc, Ch. Eifrig: PRECISE ACTIVATION FOR WEAR STUDIES AT THE ROSSENDORF TANDEM ACCELERATOR P. Hammer, K. Eichhorn, Ch. Eifrig: A STUDY OF WEAR IN REFRIGERATING MACHINES USING THIN LAYER ACTIVATION A. Kalicki., L. Waliś: THE PRINCIPLE OF THE β-X INTERNAL EXCITATION APPLICATION FOR DETERMINATION OF ELEMENTS IN THIN METALLIC FILMS E. Kowalska, P. Urbański: DETERMINATION OF TIN AND LEAD IN GALVANIC BATH AND LEAD IN Sn-Pb PLATINGS WITH SIMULTANEOUS COATING THICKNESS MEASUREMENT K. Mauersberger, B. Bayerl: DETERMINATION OF Tc-99 BY FLAME AAS B. Machaj, F. Zrudelny, A. Sikora, J. Jaszczuk: MICROPROCESSOR ISOTOPE GAUGES FOR MEASUREMENT OF COATING THICKNESS AND OF AIR DUST POLLUTION Z. Joks, M. Krejci: APPLICATION OF RADIOISOTOPES FOR CORROSION TESTS OF INDUSTRIAL PLASTICS G. Hartmann, P. Kulicke, C. Jonas, A. Walter: INVESTIGATION ON CHLORIDE-INITIATED STRESS CORROSION OF STAINLESS STEEL BY USE OF CHLORINE-36 AND AUTORADIOGRAPHY J. Flachowsky, P. Kulicke, G. Hartmann, N. Schütze: LOCALIZATION OF THE ORIGIN OF DEFECTS IN HIGH-CLASS CASTINGS BY RADIOTRACER TECHNIQUES AND AUTORADIOGRAPHY H. Kupsch, H. Bruchertseifer, W. Heller: METHOD FOR THE RAPID DETECTION OF LEAKAGES IN OIL PIPES A.G. Chmielewski: RADIOTRACERS IN SOME INDUSTRIAL AND ENVIRONMENTAL PROBLEMS S. Szpilowski, A. Owczarczyk: INVESTIGATION OF TRANSPORT OF EFFLUENT IN NATURAL STREAMS USING RADIOISOTOPE AND DYE TRACERS A. Owczarczyk, s. Szpilowski: APPLICATION OF RADIOISOTOPE TRACERS FOR BEDLOAD SEDIMENT TRANSPORT STUDY IN RIVERS AND MARINE BREAKER ZONE I. Röske, H.-C. Abendroth, D. Luther, H.-G. Könnecke: TRACER STUDIES ON THE REMOVAL OF WATER ENDANGERING SUBSTANOES FROM MUNICIPAL WASTE WATERS A. Zeuner, F. Hartmann: RESIDENCE TIME INVESTIGATION AND MATERIAL BALANCE FOR FRESH AND WASTE WATER IN A RAYON BY RADIOISOTOPE APPLICATION A.G. Chmielewski, A. Dobrowolski: THE FALL OF EQUALIZATION MYTH-RADIOTRACER INVESTIGATIONS OF THE CASE J. Halova, J. Schön, J. Thýn: THE ANALYSIS OF DATA FROM TRACER EXPERIMENTS WITH THE FLOW APPARATUSES FOR RADWASTE MANAGEMENT S. Mothes, P. Popp, G. Oppermann, J. Baumbach: AIR POLLUTION MEASUREMENTS WITH ELECTRON CAPTURE DETECTORS (ECD) C. Ghounchev: ACTIVATION ANALYSIS OF HEAVY METALS IN SOIL AND PLANTS IN SOME INDUSTRIAL REGIONS OF THE COUNTRY M. Borkowski, W. Smulek: RADIONUOLIDES IN STUDYING THE SORPTION OF METALS BY CHITIN AND CHITOSAN R. Bäuerlein: EVALUATION OF THE DEGREE OF CROSSLINKING OF HEAT SHRINKABLE PRODUCTS K. Posselt, W. Hädrich: CHARACTERIZATION OF THE DEGREE OF CROSS-LINKING IN RADIATION CROSS-LINKED LOW AND HIGH DENSITY POLYETHYLENES E. Takács: RADIATION CROSS-LINKING OF PLASTICIZED PVC WITH POLYFUNCTIONAL MONOMERS W. Hädrich, K. Posselt, C. Lippmann, H. Wagner, H.-J. Heinrich: DEPTH DOSE IN ELECTRON IRRADIATED POLYETHYLENE LAYERS IN DEPENDENCE ON THE ANGLE OF INCIDENCE U. Decker, J. Bös, L. Richter, M. Remer: CHARGE ACCUMULATION AND STORAGE IN POLYETHYLENE IRRADIATED WITH PULSES OF FAST ELECTRONS E. Jaworska: THE INFLUENCE OF IRRADIATION TEMPERATURE ON STRESSES IN DEFORMED POLYETHYLENE W. Hädrich, T. Nestler, K. Posselt: THERMAL STRESS IN THE POLYETHYLENE INSULATION OFCABLES DURING IRRADIATION WITH HIGH ENERGY ELECTRONS W. Pekala, T. Achmatowicz: POST-RADIATION GRAFTING OF METHACRYLIC ACID ONTO POLYETHYLENE FILM J. Schmidt, H. Mai: ELECTRON BEAM CURING OF COATINGS E. Jaworska, S. Wawrzak, I. Kaluska: HEAT SHRINKABLE TAPES IN POLAND A. Robalewski et al.: POLISH HEAT SHRINKABLE TUBING TECHNOLOGY S. Galant, W. Pekala, J. Rosiak: USING OF THE RADIATION TECHNOLOGY TO THE PREPARATION OF POLYMERIC MATRIX CAPABLE TO THE CONTROLLED RELEASE OF DRUG TO EYE R. Krejzler et al.: NEW ROUTINE POLYETHYLENE DOSIMETER: DOSE RANGE 40-400 kGy Z. Zimek: THE USE OF ELECTRICAL SENSORS OF RADIATION FOR DIGITAL CONTROL IN RADIATION PROCESSING Z. Bulhak et al.: RADIATION STERILIZATION WITH THE ELECTRON LINEAR ACCLERATOR LAE 13/9 M. Remer, W. Bogus, W. Pekala: FIRST EVALUATION OF THE GAMMA IRRADIATION CHAMBER OF THE TU ŁODZ BY MEANS OF THE CODES DOSKMF2 AND ISORADL O. Brede, R. Hermann, R. Mehnert: ORGANIC COOLANTS FOR NUCLEAR REACTORS W. Wroński, J. Wisłowski: THE LABORATORY TESTING SYSTEM FOR RADIATION RESISTANCE INVESTIGATIONS OF INTEGRATED CIRCUITS AUTHOR INDEX
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  • 35
    Series available for loan
    Series available for loan
    Pasay City, Philippines : Typhoon Committee Secretariat
    Associated volumes
    Call number: MOP 46950(1987) / Mitte
    In: ESCAP/WMO Typhoon Committee annual review, 1987
    Type of Medium: Series available for loan
    Series Statement: ESCAP/WMO Typhoon Committee annual review 1987
    Language: English
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  • 36
    Call number: MOP 46624/3 / Mitte
    In: Effects of changes in stratospheric ozone and global climate
    Type of Medium: Monograph available for loan
    Pages: VI, 293 Seiten
    Series Statement: Effects of changes in stratospheric ozone and global climate 3
    Language: English
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  • 37
    Call number: MOP 46624/4 / Mitte
    In: Effects of changes in stratospheric ozone and global climate
    Type of Medium: Monograph available for loan
    Pages: VI, 193 Seiten
    Series Statement: Effects of changes in stratospheric ozone and global climate 4
    Language: English
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  • 38
    Monograph available for loan
    Monograph available for loan
    Budapest : Vízügyi Dokumentációs Szolgáltató Leányvállalat
    Call number: MOP 46596 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 124 Seiten , Illustrationen
    ISBN: 9636023565
    Language: English
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  • 39
    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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  • 40
    Call number: MOP 46816 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 547 Seiten
    Language: English
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  • 41
    Call number: MOP 47382 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 161 Seiten , 30 cm
    Series Statement: Technical documents in hydrology
    Language: English
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  • 42
    Journal available for loan
    Journal available for loan
    Tübingen : Mohr Siebeck ; 1.1884 - 48.1931; N.F. 1.1932/33 - 10.1943/44(1945),3; 11.1948/49(1949) -
    Call number: ZS 22.95039
    Type of Medium: Journal available for loan
    Pages: Online-Ressource
    ISSN: 1614-0974 , 0015-2218 , 0015-2218
    Language: German , English
    Note: N.F. entfällt ab 57.2000. - Volltext auch als Teil einer Datenbank verfügbar , Ersch. ab 2000 in engl. Sprache mit dt. Hauptsacht.
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  • 43
    Monograph available for loan
    Monograph available for loan
    New York [u.a.] : Doubleday
    Call number: 1.2/M 97.0061 ; 1.2/M 97.0060 ; 1.2/M 96.0170
    Type of Medium: Monograph available for loan
    Pages: 571 S.
    Edition: 3rd Ed.
    ISBN: 0385181019
    Classification:
    E.5.
    Language: English
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  • 44
    Monograph available for loan
    Monograph available for loan
    Cambridge [u.a.] : Univ. Pr.
    Call number: MOP 46167 / Mitte
    Type of Medium: Monograph available for loan
    Pages: v, 233 S. : Ill., graph. Darst.
    ISBN: 0521251389
    Language: English
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  • 45
    Monograph available for loan
    Monograph available for loan
    Englewood Cliffs, N.J. : Prentice-Hall
    Associated volumes
    Call number: M 96.0537/2 ; 15/13860/2
    In: Proceedings
    Type of Medium: Monograph available for loan
    Pages: xii, 906 S.
    ISBN: 0132463725
    Classification:
    B.5.
    Language: English
    Location: Upper compact magazine
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  • 46
    Monograph available for loan
    Monograph available for loan
    Englewood Cliffs, N.J. : Prentice-Hall
    Associated volumes
    Call number: M 96.0537/3 ; 15/13860/3
    In: Proceedings
    Type of Medium: Monograph available for loan
    Pages: xii, 1101 S.
    ISBN: 0132463806
    Classification:
    B.5.
    Language: English
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  • 47
    Call number: M 96.0537/7 ; 15/13860/7
    In: Proceedings
    Type of Medium: Monograph available for loan
    Pages: xii, 956 S.
    ISBN: 0132464225
    Classification:
    B.5.
    Language: English
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  • 48
    Call number: M 96.0537/1 ; 15/13860/1
    In: Proceedings
    Type of Medium: Monograph available for loan
    Pages: xxi, 868 S.
    ISBN: 0132463644
    Classification:
    B.5.
    Language: English
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  • 49
    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.
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  • 50
    Monograph available for loan
    Monograph available for loan
    [Edgecumbe, N.Z.] : A. Muller
    Call number: M 15.89146
    Description / Table of Contents: An account of the results of the 2 March 1987 earthquake in the eastern Bay of Plenty and the aftermath's effects on the people and places on the Rangitaiki Plains
    Type of Medium: Monograph available for loan
    Pages: 223 S., , Ill.
    Language: English
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  • 51
    Monograph available for loan
    Monograph available for loan
    Darmstadt : Steinkopff
    Call number: MOP 46575 / Mitte
    Type of Medium: Monograph available for loan
    Pages: XIX, 714 S.
    ISBN: 9061914698
    Series Statement: Scientific research reports. Natural sciences series 71
    Uniform Title: Felder, Ströme und Aerosole in der unteren Troposphäre
    Language: English
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  • 52
    Monograph available for loan
    Monograph available for loan
    Oxford : Oxford Univ. Press
    Associated volumes
    Call number: 17/M 17.90969/1
    Type of Medium: Monograph available for loan
    Pages: XI, 622 Seiten
    Edition: First edition published in 1984, reprinted 2011
    ISBN: 0198556020
    Series Statement: International series of monographs on chemistry 9
    Language: English
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  • 53
    Call number: AWI Bio-99-0305-3
    In: Atlas of North European vascular plants, 3
    Type of Medium: Monograph available for loan
    Pages: S. 969 - 1172
    ISBN: 3874292614
    Language: English
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  • 54
    Call number: MOP Per 861(9)
    In: Weather modification programme report, 9
    In: WMO TD, No. 182
    Type of Medium: Series available for loan
    Pages: 136 Seiten
    Series Statement: WMP report 9
    Language: English
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  • 55
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/2
    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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  • 56
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/8
    In: CRREL Report, 84-8
    Description / Table of Contents: This report describes the equipment and procedures that were used for acquiring, preparing and testing samples of multi-year sea ice. Techniques and procedures are discussed for testing ice samples in compression and tension at constant strain rates and constant loads, as well as in a conventional triaxial cell. A detailed account is given of the application and measurement of forces and dispiacements on the ice test specimens under these different loading conditions.
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    Pages: iv, 43 Seiten , Illustrationen
    Series Statement: CRREL Report 84-8
    Language: English
    Note: CONTENTS Abstract Preface Introduction Test material and test specimens Test material Required dimensions for test specimens Acquisition and preparation of specimens Field core sampling Specimen preparation in the laboratory Application of forces and displacements to uniaxial specimens Compression Tension Squareness imperfections Loading devices Universal testing machine Gas actuator for constant load Weight-and-pulley system for constant tension Equipment for triaxial tests Measurement of force and displacement Force Displacement Readouts and recorders Literature cited Appendix A: Phenolic-resin end caps Appendix B: Compliant platens Appendix C: Theoretical factor for converting overall strain to gauge-length strain indumbbell specimens Appci dix D: Items developed but not used in Phase I Appendix E: Use of the Brazil test
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  • 57
    Call number: AWI G2-18-91716
    Type of Medium: Monograph available for loan
    Pages: 134 S , Ill., graph. darst , 24 cm
    Language: English
    Note: CONTENTS: 1. Introduction. - 1.1. Research at the NEA dumpsite: CRESP and the DORA project. - 1.2. Acknowledgments. - 1.3. Source term: the radionuclides of interest. - 2. Material and methods. - 2.1. Cruises to the dumpsite. - 2.2. Sampling scheme. - 3. Geochemistry. - 3.1. Introduction. - 3.2. Methods. - 3.3. Recent sedimentological history. - 3.4. Elemental and mineralogical composition of the sediment. - 3.4.1. Mineralogical composition. - 3.4.2. Major elements. - 3.4.3. Trace elements. - 3.5. Early diagenetic reactions in the sediment. - 3.5.1. Mineralization of organic matter. - 3.5.1.1. Sequence of electron acceptors and changes in redox conditions. - 3.5.1.2. Oxygen reduction. - 3.5.1.3. Nitrate, manganese and iron reduction. - 3.5.1.4. Sulfate reduction. - 3.5.2. Cation exchange. - 3.5.3. Dissolution of carbonates. - 3.6. Trace element diagenesis. - 3.6.1. Trace metals. - 3.6.2. Mn, Fe, Co. - 3.6.3. Cu, Ni, Cd, Zn. - 3.6.4. Rare earth elements. - 3.6.5. Trace element mobility; the concept of distribution coefficients. - 3.7. Diagenetic modeling. - 3.8. Measurements in the nepheloid layer. - 3.9. Conclusions on the behaviour of each of the radionuclides of major concern. - 4. Biology. - 4.1. Introduction. - 4.2. Methods. - 4.2.1. Meiofauna. - 4.2.2. Macrofauna and large meiofauna. - 4.2.3. Megafauna. - 4.2.4. Diversity of Nematoda. - 4.2.5. Trophic structure of Nematoda. - 4.3. Results and discussion. - 4.3.1. Meiofauna. - 4.3.1.1. Density. - 4.3.1.2. Biomass. - 4.3.1.3. Horizontal distribution. - 4.3.1.4. Vertical distribution. - 4.3.1.5. Composition and trophic structure of the Nematoda fauna. - 4.3.1.6. Diversity of Nematoda. - 4.3.2. Macrofauna. - 4.3.3. Large meiofauna. - 4.3.4. Comparison of meio- and macrofauna. - 4.3.5. Megafauna. - 4.3.6. Chemical analyses of bottom fishes. - 4.4. Foodweb. - 4.5. Primary production. - 4.6. Conclusions. - 5. Bioturbation. - 6. Summary and conclusions regarding the fate of radionuclides released at the seafloor. - 7. References.
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  • 58
    Series available for loan
    Series available for loan
    Bratislava : Hydrometeorological Service of Czechoslovakia
    Call number: MOP 47473 / Mitte
    Type of Medium: Series available for loan
    Language: English
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  • 59
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-86/7
    In: CRREL Report, 86-7
    Description / Table of Contents: Nitrogen control in the form of ammonia removal or conversion is required, or will be required, for a significant number of military wastewater treatment systems. This reportpresents a summary of engineering criteria for those processes in most common use at military facilities in the cold regions. These processes include: trickling filters, treatmentponds, rotating biological contactors (RBC) and activated sludge. A design example is presented for each case. All four processes can achieve significant levels of ammonia removalor conversion. If ammonia discharge limits are 0.5 mg/L or less it may be necessary to use the activated sludge process. Trickling filters or RBC units are recommended for higher(〉 1 mgIL) discharge limits. Pond systems are suitable for seasonal ammonia removal incold climates.
    Type of Medium: Series available for loan
    Pages: iv, 29 Seiten , Illustrationen
    Series Statement: CRREL Report 86-7
    Language: English
    Note: CONTENTS Abstract Preface Introduction Background and theory Trickling filters Introduction Design procedure Design example Winter operations Pond systems Introduction Design procedure Design example Winter operations Rotating biological contactors Introduction Design procedure Design example Winter operations Activated sludge systems Introduction Design procedure Design example Winter operations Comparison of alternatives Conclusions Literature cited
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  • 60
    Series available for loan
    Series available for loan
    Leipzig : Academy of Sciences of the GDR, Central Institute of Isotope and Radiation Research
    Associated volumes
    Call number: AWI G6-19-91927-1
    In: Third Working Meeting Radioisotope Application and Radiation Processing in Industry, Vol. 1
    Type of Medium: Series available for loan
    Pages: 375 Seiten , Illustrationen
    ISSN: 0323-8776
    Language: English
    Note: CONTENTS VOLUME I PART 1: PLENARY AND DISCUSSION LECTURES R.J.B. Hadden: RADIONUCLIDES FOR PROCESS CONTROL AND INSPECTION J. Guizerix: TRENDS AND OPEN QUESTIONS IN INDUSTRIAL TRACER APPLICATIONS A. S. Shtan, V. A. Mashinin Zh.I. Matalygina: NEUTRON ACTIVATION ANALYSIS OF GEOLOGICAL SAMPLES WITH THE APPLICATION OF RADIONUCLIDE NEUTRON SOURCES W. Michaelis: RADIONUCLIDES IN ENVIRONMENTAL RESEARCH AND PROTECTION J.K. Miettinen: RADIONUCLIDES IN ENVIRONMENT J. W. Leonhardt: RADIOISOTOPES IN ENERGETICS K. Przewlocki: APPLICATION OF NUCLEAR TECHNIQUES IN MINING INDUSTRY K. Wetzel: TRACERS IN GEOCHEMICAL AND ENVIRONMENTAL RESEARCH A. K. Pikaev: ENVIRONMENTAL APPLICATION OF RADIATION PROCESSING R. Otto: LABELLED COMPOUNDS FOR TRACER INVESTIGATIONS IN INDUSTRY R. Otto, H.-G. Könnecke, D. Luther, P. Hecht: RADIONUCLIDES FOR PROCESS ANALYSIS - PROBLEMS AND EXAMPLES Z. Málek: PRESENT STAGE OF CO-OPERATION OF THE CMEA MEMBER COUNTRIES IN THE FIELD OF ISOTOPE AND RADIATION TECHNOLOGY E.A. Abramyan: HIGH POWER ELECTRON ACCELERATORS IN RADIATION PROCESSING J. Sivinski: CURRENT AND FUTURE INITIATIVES OF THE U.S. DEPARTMENT OF ENERGY IRRADIATION PROGRAM ACTIVITIES J. Bös, J. Schmidt, U. Decker, H. Mai, L. Richter: ON THE APPLICATION OF SOME METHODS FOR THE INVESTIGATION OF RADIATION-INDUCED PROCESSES IN POLYETHYLENE H.-J. Heinrich, K. Posselt, W. Hädrich, L. Röhr, D. Flügge: ASPECTS OF IRRADIATION TECHNOLOGY CONCERNING THE CROSSLINKING OF CABLE AND WIRE INSULATIONS AND OF TUBES BY HIGH ENERGY ELECTRONS P. Popp, J.W. Leonhardt, G. Oppermann, H. Merten: THE HELIUM-DETECTOR: THEORY AND PRACTICE H.-H. Deicke: ASPECTS OF RADIATION PROTECTION IN THE APPLICATION OF RADIOTRACERS FOR RESEARCH IN INDUSTRIAL PLANTS
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  • 61
    Call number: MOP 46293/A / Mitte
    In: United States Antarctic Research Report to SCAR, No. 26
    Type of Medium: Series available for loan
    Series Statement: United States Antarctic Research Report to SCAR 26
    Language: English
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  • 62
    Monograph available for loan
    Monograph available for loan
    Tempe, Arizona : Laboratory of Climatology, Arizona State University
    Call number: MOP 46625 / Mitte
    Type of Medium: Monograph available for loan
    Series Statement: CO₂/climate dialogue 1,2
    Language: English
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  • 63
    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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  • 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-201-84/6
    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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  • 65
    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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  • 66
  • 67
    Call number: MOP 47171 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 293 Seiten , Illustrationen
    Language: English
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  • 68
    Call number: MOP 45384/8 / Mitte
    In: WMO TD / World Meteorological Organization, No. 190
    Type of Medium: Series available for loan
    Pages: 55 Seiten , 30 cm
    Series Statement: WMO TD / World Meteorological Organization 190
    Language: English
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  • 69
    Call number: MOP 47640 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 584 Seiten , Illustrationen , 30 cm
    Language: French , English
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  • 70
    Call number: MOP 46292/B / Mitte
    In: United Kingdom Antarctic research report, 1984
    Type of Medium: Series available for loan
    Series Statement: United Kingdom Antarctic research report 1984
    Language: English
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  • 71
    Monograph available for loan
    Monograph available for loan
    Englewood Cliffs, N.J. : Prentice-Hall
    Associated volumes
    Call number: M 96.0537/4 ; 15/13860/4
    In: Proceedings
    Type of Medium: Monograph available for loan
    Pages: xi, 914 S.
    ISBN: 0132463989
    Classification:
    B.5.
    Language: English
    Location: Upper compact magazine
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  • 72
    Call number: ILP/M 06.0273
    In: Publication of the International Lithosphere Programme
    In: Geophysical Journal International
    Type of Medium: Monograph available for loan
    Pages: xi, 497 S. : graph. Darst.
    Series Statement: Publication of the International Lithosphere Programme 127
    Language: English
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  • 73
    Monograph available for loan
    Monograph available for loan
    Dordrecht [u.a.] : Nijhoff
    Associated volumes
    Call number: M 96.0400
    In: Mechanics of elastic stability
    Type of Medium: Monograph available for loan
    Pages: x, 135 S.
    ISBN: 9024733197
    Series Statement: Mechanics of elastic stability 10
    Classification:
    Petrophysics
    Language: English
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  • 74
    Call number: M 17.90889
    Type of Medium: Monograph available for loan
    Pages: VI, 180 S. , Ill., graph. Darst.
    ISBN: 9150605046
    Language: English
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  • 75
    Monograph available for loan
    Monograph available for loan
    Garmisch-Partenkirchen : Institut für atmosphärische Umweltforschung der Fraunhofer- Gesellschaft
    Call number: MOP 44829 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 25 S. , graph. Darst.
    Language: English
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  • 76
    Call number: AWI Bio-99-0305-1
    In: Atlas of North European vascular plants, 1
    Type of Medium: Monograph available for loan
    Pages: XVI, 498 S.
    ISBN: 3874292592
    Language: English
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  • 77
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/24
    In: CRREL Report, 84-24
    Description / Table of Contents: This report describes the growth characteristics and crystalline textures of urea ice sheets which are now used extensively in the Cold Regions Research and Engineering Lab. (CRREL) test basin for modeling sea ice. The aims of the report are to describe the different kinds of crystalline texture encountered in urea ice sheets and to show that even small variations in texture can drastically influence the mechanical behavior of urea ice sheets. Standard petrographic techniques for studying microstructure in thin sections were used on 24 urea ice sheets. These investigations entailed observations of the crystalline texture of the ice (including details of the subgrain structure), grain size measurements, and studies of the nature and extent of urea entrapment and drainage patterns in the ice. Increased knowledge of the factors controlling the crystalline characteristics of urea ice sheets has progressed to the point where test basin researchers at CRREL are now able to fabricate ice sheets with prescribed structures leading to predictable mechanical properties. Originators supplied keywords include: Sea ice, and Mechanical properties.
    Type of Medium: Series available for loan
    Pages: iv, 55 Seiten , Illustrationen
    Series Statement: CRREL Report 84-24
    Language: English
    Note: Contents: Abstract Preface Introduction Objectives Analytical techniques Procedures for growing urea ice sheets Analysis of the crystalline structure of urea ice Characteristics of urea ice Results and discussion Ice sheet no. 1 Ice sheet no. 2 Ice sheet no. 3 Ice sheet no. 4 Ice sheet no. 5 Ice sheet no. 6 Ice sheet no. 7 Ice sheet no. 8 Ice sheet no. 9 Ice sheet no. 10 Ice sheet no. 11 Ice sheet no. 12 Ice sheet no. 13 Ice sheet no. 14 Ice sheet no. 15 Ice sheet no. 16 Ice sheet no. 17 Ice sheet no. 18 Ice sheet no. 19 Ice sheet no. 20 Ice sheet no. 21 Ice sheet no. 22 Ice sheet no. 23 Ice sheet no. 24 Urea concentrations in test tank solution and ice Discussion and conclusions E/σf ratio Thickness of incubation layer Crystal properties Literature cited Appendix A: Thin sections of urea ice sheets
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  • 78
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/12
    In: CRREL Report, 84-12
    Description / Table of Contents: Icing on stationary structures such as oil rigs is becoming an increasingly serious problem as offshore drilling operations in the subpolar regions become more common. Little information exists on this subject. Extensive observations have been made of icing on the upper structures of moving ships, but the complexity of this problem makes analysis of the results very difficult. Even the generation of water drops in this case involves many factors, such as windspeed, wave direction relative to the bearing of the ship, and size and free-board of the ship. On stationary structures, however, the problem is much simpler, since the major factor in drop generation is whitecaps produced by wind, and no motion of the structure is involved. In the present study, a theoretical calculation was made by combining the data available on the generation of drops by wind with data on the proportion of ice frozen from the collected water. The rate of ice accumulation on stationary structures was calculated using published data. The results were compared with icing measured on board ships. Although the general trend of this calculation indicated parallelism with the onboard measurements, the measured ice accumulation rate on ships needed a 5 to 8 m/s higher windspeed to correspond with the calculated rate for stationary structures.
    Type of Medium: Series available for loan
    Pages: ii, 13 Seiten , Illustrationen
    Series Statement: CRREL Report 84-12
    Language: English
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  • 79
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/18
    In: CRREL Report, 84-18
    Description / Table of Contents: This report investigates the influences of turbulence and water temperature on frazil ice formation. The rate and thequantity of frazil ice formed in a specified volume of supercooled water increase with both increasing turbulence inten-sitv and decreasing water temperature. The influence of turbulence intensity on the rate of frazil ice formation, how-ever. is more pronounced for larger initial supercooling. The turbulence characteristics of a flow affect the rate offrazil ice formation by governing the temperature to which the flow can be supercooled, by influencing heat transferfrom the frazil ice to surrounding water, and by promoting collision nucleation, particle and floc rupture and increasingthe number of nucleation sites. larger frazil ice particles formed in water supercooled to lower temperatures. The par-ticles usually were disks, with diameters several orders greater than their thickness. Particle size generally decreased with increasing turbulence intensity. This report develops an analytical model, in which the rate of frazil ice formation isrelated to temperature rise of a turbulent volume of water from the release of latent heat of fusion of liquid water toice. Experiments conducted in a turbulence jar with a heated, vertically oscillating grid served both to guide and tocalibrate thanalytical'model as well as to afford insights into frazil ice formation. The formation of frazil ice wasstudied for Vemperatures of supercooled water ranging from -0.9° to -0.050°C.
    Type of Medium: Series available for loan
    Pages: vi, 50 Seiten , Illustrationen
    Series Statement: CRREL Report 84-18
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Background Scope of study Literature review Introduction Incipient formation of frazil ice Particle size and evolution of frazil ice Influences of turbulence and water temperature on the rate of frazil ice formation Conclusions Analytical model Introduction Elements of heat transfer Elements of turbulence Experimentation Experimental apparatus Experimental procedure Results Introduction Nucleation of frazil ice Influences of turbulence on frazil ice formation Water temperature Influences of water temperature and turbulence on the concentration of frazil ice Frazil ice particle shape and size Conclusions Literature cited Appendix A: Preliminary frazil ice experiments Flume experiments Couette-flow Appendix B: Listing of computer program for calculation of frazil ice formation Appendix C: Water temperature rise attributable to frazil ice formation as computed usingthe analytical model .
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  • 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-201-86/17
    In: CRREL Report, 86-17
    Description / Table of Contents: Rime icing and freezing precipitation are of concern to the radio and television broadcasting industry. This report contains the results of a study seeking to document the severity and extent of transmitter tower icing and related problems in the northeastern United States. Information was obtained via mail questionnaire and telephone interviews with 85 station owners and engineers concerning 118 different stations. Results show that television and FM broadcasters are seriously impacted by tower icing; however, AM operators are usually not affected by expected New England icing levels. Combined annual costs for icing protection and icing-related repairs averaged $121, $402 and $3066 for AM, FM and TV stations respectively. None of the AM stations polled employ any icing protection in the three northern states averaged 80%, indicating a significant concern for icing in that region. In contrast, the percentage of FM stations with icing protection was 63.5% for the southern New England states. The usage of guyed versus non-guyed towers was a poor indicator of icing costs. However, the factors of increasing mast height and mast top elevation are significant to increasing costs.
    Type of Medium: Series available for loan
    Pages: iv, 52 Seiten , Illustrationen
    Series Statement: CRREL Report 86-17
    Language: English
    Note: Contents Abstract Preface Introduction Background Types of accretions Problems caused by icing Prevention and shedding methods Results The survey Data presentation Discussion Survey response distribution Effect of icing protection on parameter averages Effect of tower type on parameter averages Moderate and more severe icing locations Relationship of climate, geography and topography to icing severity Total annual costs Conclusions Literature cited Appendix A: Tower icing survey Appendix B: Station summaries
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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-201-87/4
    In: CRREL Report, 87-4
    Description / Table of Contents: In this report we present results of measurements of the crystalline structure and salinity characteristics of sea ice in Hebron Fiord and vicinity, Labrador. Structurally, the fiord ice was entirely first year and composed predominantly of congelation, columnar-type crystals. At most of the sampling sites the ice exhibited moderately to strongly aligned c-axes consistent with the inferred direction of near surface currents in the fiord. Generally diminished values of bulk salinity at five separate locations reflect the warm ice conditions encountered at the time of sampling (late May) and the effect of meltwater flushing in promoting loss of brine, vertically, from the ice sheet. Observations outside Hebron Fiord indicated the presence of only minor amounts of multiyear ice during the latter part of May.
    Type of Medium: Series available for loan
    Pages: iii, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 87-4
    Language: English
    Note: Contents: Abstract Preface Introduction Sampling procedure Analytical techniques Salinities Crystal structure Results Salinity Crystal structure Brine layer spacing Incidental temperatures Conclusions Literature cited Appendix A: Vertical and horizontal thin section photographs of sea ice from various sites
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  • 82
    Call number: ZSP-201-87/2
    In: CRREL Report, 87-2
    Description / Table of Contents: This is the third in a series of four reports on the laboratory and field testing of a number of road and airfield subgrades, covering the laboratory repeated-load triaxial testing of five soils in the frozen and thawed states and analysis of the resulting resilient modulus measurements. The laboratory testing procedures allow simulation of the gradual increase in stiffnessfound in frost-susceptible soils after thawing. The resilient modulus is expressed in a nonlinear model in terms of the applied stresses, the soil moisture tension level (for unfrozen soil), the unfrozen water content (for frozen soil) and the dry density. The resilient modulus is about 10 GPa for the frozen material at temperatures in the range of -5° to -8° C. The decrease in modulus with increasing temperature was well-modeled in terms of the unfrozen water content. Upon thaw, the modulus dropped to about 100 MPa and generally increased with increasing confining stress and decreased with increasing principal stress ratio. The modulus also increased with the soil moisture tension level. The resilient Poisson's ratio did not appear to be a systematic function of any of the test variables.
    Type of Medium: Series available for loan
    Pages: iii, 36 Seiten , Illustrationen
    Series Statement: CRREL Report 87-2
    Language: English
    Note: CONTENTS Abstract Preface Introduction Test sections and materials Specimen preparation Test soils Asphalt concrete Laboratory testing Soil testing Waveforms of applied stress Asphalt concrete Data reduction and analysis Soil Asphalt concrete Results and discussion General Resilient modulus Summary Conclusions Literature cited Appendix A: Soil moisture tension versus water content for several test soils Appendix B: Tabulated results for all tests on frozen and thawed soils
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  • 83
    Call number: ZSP-SCAR-570-8
    In: National Antarctic Research Report to SCAR, No. 8
    Type of Medium: Series available for loan
    Pages: 33 Seiten
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 8
    Language: English
    Note: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Members of Permanent Working Groups and Groups of Specialists of SCAR. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 1985 - October 1986. - II. Planned Activities, October 1986 - October 1987. - References. - Addenda to Former Reports. - Index of Activities.
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  • 84
    Monograph available for loan
    Monograph available for loan
    New York [u.a.] : Wiley [u.a.]
    Call number: PIK M 490-19-93049
    Type of Medium: Monograph available for loan
    Pages: XV, 329 Seiten , Illustrationen, Diagramme , 25 cm
    ISBN: 0471849677 , 2705659803
    Uniform Title: L'ordre dans le chaos 〈engl.〉
    Language: English
    Location: A 18 - must be ordered
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  • 85
    Call number: ZSP-SCAR-570-6
    In: Antarctic Research Report to SCAR, No. 6
    Type of Medium: Series available for loan
    Pages: 38 Seiten
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 6
    Language: English
    Note: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 83-October 84. - II. Planned Activities, October 84-October 85. - References.
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  • 86
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/4
    In: CRREL Report, 84-4
    Description / Table of Contents: Ice problems developed in the Sault Ste. Marie, Michigan, portion of the St. Marys River because of winter navigation. Passing ships and natural influences moved ice from Soo Harbor into Little Rapids Cut in sufficient quantities to jam, cause high water in the harbor, and prevent further ship passage. After physical model and engineering studies, two ice booms with a total span of 1375 ft (419 m) with a 250-ft (76-m) navigation opening between were installed at the head of Little Rapids Cut in 1975. A modest field study program on the booms was conducted for the ensuring four winters to determine ice and boom interaction and the effects of ship passages on the system. Forces on some anchors were recorded and supplemental data were taken by local personnel. Several reports have been written about the booms' early operations. This paper presents four-year summary of the main effects of the booms on ice and ship interaction and vice versa. Throughout the four winter seasons, the small quantities of ice lost over and between the booms were manageable. Ships usually passed through the boom without influencing the boom force levels, but at time they brought about large changes. One boom needed strengthening, and artificial islands were added for upstream ice stability. Coast Guard icebreakers were also a necessary part of winter navigation in this area.
    Type of Medium: Series available for loan
    Pages: iv, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 84-4
    Language: English
    Note: CONTENTS Abstract Preface Introduction St. Marys River Ice problems Remedial measures Field studies Highlights, trends, and major findings Modifications to boom Maximum forces Ship traffic Characteristics Effect of boom forces Effect on ice Conclusion Literature cited Appendix A: Ice boom forces
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  • 87
    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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  • 88
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-86/2
    In: CRREL Report, 86-2
    Description / Table of Contents: The behavior of reinforced and unreinforced concrete beams was studied under impact loading at low temperatures, and the results were compared to the behavior of reinforcing steel (rebar) in Charpy-V impact tests. Transition temperatures as low as -30°C were obtained for the rebars in the Charpy-V tests whereas no brittle failures occured in the rebars in the reinforced concrete beams at the temperature as low as -63°C, even in beams whe're the rebars were Intentionally notched. The impact strength of unreinforced concrete increases considerably at lower temperatures, thus reducing cracking of reinforcedconcrete structures and significantly increasing the safety of lightly reinforced structures.
    Type of Medium: Series available for loan
    Pages: iii, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 86-2
    Language: English
    Note: Abstract Preface Introduction Tests Test specimens Test methods Results Impact strength of beanms Ductility of beams Effect of notched bars Elastic deflection of beams Impact tests on rebars Conclusions and summary Literature cited Appendix A: Beam crack patterns Appendix B: Photomicrographs of failure surfaces of some steels
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  • 89
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-86/5
    In: CRREL Report, 86-5
    Description / Table of Contents: This work presents the results of a study to examine the effects of grain size of internal microfractures in polycrystalline ice. Laboratory-prepared specimens were tested under uniaxial, constant-load creep conditions at -5 C. Grain size ranged from 1.5 to 6.0 mm. This range of grain size, under an initial creep stress of 2.0 MPa, led to a significant change in the character of deformation. The finest-grained material displayed no internal cracking and typically experienced strains of 10 to the minus 2nd power at the minimum creep rate epsilon. The coarse-grained material experienced severe cracking and a drop in the strain at epsilon min to approximately 4x10 to the minus 3rd power. Extensive post-test optical analysis allowed estimation of the size distribution and number of microcracks in the tested material. These data led to the development of a relationship between the average crack size and the average grain size. Additionally, the crack size distribution, when normalized to the grain diameter, was very similar for all specimens tested. The results indicate that the average crack size is approximately one-half the average grain diameter over the stated grain size range. A dislocation pileup model is found to adequately predict the onset of internal cracking. The work employed acoustic emission techniques to monitor the fracturing rate occurred. Other topics covered in this report include creep behavior, crack healing, the effect of stress level on fracture size and the orientation of cracked grains. Theoretical aspects of the grain size effect on material behavior are also given.
    Type of Medium: Series available for loan
    Pages: v, 79 Seiten , Illustrationen
    Series Statement: CRREL Report 86-5
    Language: English
    Note: CONTENTS Abstract Preface Background Present research in perspective Explanations of the grain-size dependency Grain size effects on the ductile to brittle transition Nucleation mechanisms and modeling Characteristic size of nucleated crack Cracking in ice Detection of internal fracturing by acoustic emission techniques Test methods Specimen preparation Creep testing apparatus Crack length and crack density measurements Crack healing measurements Thin section photographs Grain size determination Acquisition of acoustic emission data Presentation of results Specimen characteristics Microcrack measurements Creep behavior Crack healing Slip plane length distribution Acoustic emission observations Grain orientation Analysis and discussion Thick section observations The grain size vs crack size relationship Crack nucleation condition Crack density and specimen strain Creep behavior Normalized crack length Location of cracks Acoustic emission activity Summary and conclusions Suggestions for future work Literature cited Appendix A: Crack length histograms Appendix B: Crystal orientations
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  • 90
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-86/10
    In: CRREL Report, 86-10
    Description / Table of Contents: Icing of a four-bladed rotor was studied under natural conditions at the top of Mt. Washington, N.H. The rotor had two cylindrical blades and two airfoil blades. The results were compared with studies conducted in icing wind tunnels. Considerable differences in icing regimes were observed. For instance, with comparable liquid water content and wind speed the wet-to-dry growth regime transition temperature was up to 10 C higher under natural conditions than in the wind tunnel studies. Results of other studies made under natural conditions were close to those of the present study, indicating that wind tunnel conditions are significantly different from natural conditions. Close examination of the conditions indicated that supersaturation of water vapor existing in most of the wind tunnel studies is the most probable cause of the differences.
    Type of Medium: Series available for loan
    Pages: v, 68 Seiten , Illustrationen
    Series Statement: CRREL Report 86-10
    Language: English
    Note: CONTENTS Abstract Preface Introduction Site weather Site selection Equipment Rotor Data logger Rotoscope Laser profile camera Thin section preparation Run procedure Sample collection and shutdown Dry runs and static runs Results and discussion Wet-to-dry growth regime transition Stagnation line icing rate Icing rate on cylindrical and airfoil blades Liquid water content vs stagnation line icing rate Droplet capture efficiency index Temperature rise Morphological and crystallographic aspects Summary and conclusion Literature cited Appendix A: Chronology of events .. Appendix B: Narrative description of icing runs Appendix C: Weather summary sheets for test days Appendix D: Signal conditioner circuit diagram and sample printout
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  • 91
    Call number: AWI G7-19-92305
    Type of Medium: Monograph available for loan
    Pages: 116 Blätter
    Language: English
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  • 92
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    Series available for loan
    Leipzig : Academy of Sciences of the GDR, Central Institute of Isotope and Radiation Research
    Associated volumes
    Call number: AWI G6-19-91927-2
    In: Third Working Meeting Radioisotope Application and Radiation Processing in Industry, Vol. 2
    Type of Medium: Series available for loan
    Pages: XIX, Seite 377-747 , Illustrationen
    ISSN: 0323-8776
    Language: English
    Note: VOLUME II PART 1: PLENARY AND DISCUSSION LECTURES (continued) H. Baumbach: RADIOISOTOPE APPLICATIONS IN CIVIL ENGINEERING P. Urbański, S. Karamuz, D. Wagner: SOME ASPECTS OF THE INDUSTRIAL APPLICATION OF RADIOMETRIC METHODS ILLUSTRATED BY THE EXAMPLE OF THE DETERMINATION OF ASH, CAlCIUM AND IRON IN BROWN COAL USING XRF-TECHNIQUE AND THE LOW ENERGY X-RAY SCATTERING METHOD B.E. Fischer, R. Spohr: POTENTIAL APPLICATIONS OF THE NUCLEAR TRACK TECHNIQUE D. Molzahn, G. Feige, M. Ganz, L. Schmidt, H. Danigel, G. Noll, G. Dersch, R. Brandt: DEVELOPMENT OF A FAST METHOD FOR THE DETERMINATION AND ANALYSIS OF SMALL AMOUNTS OF NEPTUNIUM AND PLUTONIUM IN URANIUM SOLUTIONS AFTER NUCLEAR FUEL REPROCESSING H. Koch, J. Flachowsky: RADIOISOTOPES IN SEMICONDUCTOR SCIENCE AND TECHNOLOGY H. Kupsch: APPLICATION OF ACCELERATOR-PRODUCED SHORT-LIVED RADIONUCLIDES IN INDUSTRY M. Schiekel, P. Jugelt: STATE AND TRENDS IN ENERGY DISPERSIVE X-RAY ANALYSIS M. Geisler: PRECISION AND ACCURACY IN ACTIVATION ANALYSIS K. Freyer, H.-C. Treutler, S. Weiße: AUTORADIOGRAPHIC METHODS FOR ELEMENT MAPPING IN SOLIDS L. Jankowski: COST-BENEFIT ASPECTS OF RADIOISOTOPE METHODS PART 2: POSTER CONTRIBUTIONS L. Baranyai: SURFACE LABELLING OF GRAINED MATERIALS IN NON-AQUEOUS PRASE R. Link, W. Nuding, K. Sauerwein: THE INDIUM-113m GENERATOR AS A VERSATILE DEVICE IN INDUSTRIAL TRACER TECHNIQUE R. Otto: PREPARATION OF 113m IN LABELLED COMPOUNDS-EXTRACTION METHODS G. Zschornack, G. Musiol, A. Reichmann, D. Kreiseler, W. Schulze, W. Tänzer, W. Wagner: A COMPUTER-AIDED BRAGG CRYSTAL DIFFRACTION SPECTROMETER FOR X-RAY ANALYSIS P. Morgenstern, D. Müller, V. V. Berdikov, O.I. Grigoriev: A SEALED PROPORTIONAL SCINTILLATION COUNTER AS DETECTION INSTRUMENT IN A X-RAY FLUORESCENCE ANALYZER V.P. Varvaritsa, Yu.D. Lavrent'ev, K. I. Shchekin: AUTOMATIC RADIOISOTOPE X-RAY EQUIPMENT FOR INDUSTRIAL ANALYSIS S. M. Brodsky, V.P. Varvaritsa, V.I. Filatov: MULTIELEMENTAL X-RAY FLUORESCENCE ANALYSIS WITH ALPHA-PARTICLE EXCITATION H. Bruchertsei!er, K.-u. Eife, B. Eckert, G. Kiesig, J. W. Leonhardt, P. Morgenstern, D. Müller, W. Riedel, B. Süß: AN X-RAY ANALYZER FOR THE DETERMINATION OF HEAVY METAL TRACES IN LIQUIDS M. Vutchkov, T. Dragnev, J. Karamanova, L. Tomov, K. Janakiev, E. Nikolova: COMPUTER TECHNIQUES AND SOFTWARE FOR INDUSTRIAL APPLICATIONS OF ENERGY DISPERSIVE X-RAY FLUORESCENCE ANALYSIS J. Huszti: DESIGN METHOD FOR LEVEL MEASURING GAUGES WITH POINT SOURCES J. Jaszczuk, F. Zrudelny: MICROPROCESSOR-BASED MULTICHANNEL SPECTRUM ANALYSER FOR USE IN INDUSTRIAL RADIOISOTOPE MEASUREMENTS E. Hazi, G. Faludi: NUCLEAR LEVEL TRANSMITTER FOR PROCESS CONTROL E. Hazi, G. Faludi: NUCLEAR DENSITY TRANSMITTER AND DATA PROOESSING UNIT FOR CONTINUOUS PROCESS CONTROL G. Faludi, E. Hazi: NUCLEAR TRANSMITTER USED IN PROOESS CONTROL FOR CONTINUOUS MEASUREMENT OF MOISTURE OF ALUMlNA HYDRATE H.-W. Thümmel, M. Gläser, G. Körner: SOIL CONTENT MEASUREMENT IN CROP MATERIALS USING THE 2-ENERGY TRANSMISSION TECHNIQUE KRAS-2 P. Tábor: MULTIBEAD NUCLEONIC INSTRUMENT FOR SAND-PAPER PRODUCING LINE E. Panezyk, A. Kalicki: MEASUREMENT OF THE ACTIVITY OF 35S LABELLED OILS USING LIQUID SCINTILLATION TECHNIQUE M. Richter: A GENERAL CONCEPTION OF MATHEMATICAL MODELLING OF HYDRODYNAMICS FOR CHEMICAL APPARATUSES ON BASE OF RADIOTRACER EXPERIMENTS J. Komosinski, K. Mackowiak-Łybacka, M. Radwan: RADIOISOTOPE METHOD OF MATTER MAPPING M. Frenzel, H.-W. Thümmel: PRINCIPLES OF COMPENSATING FOR SURFACE DENSITY FLUCTUATIONS IN ON-LINE ASH CONTENT GAUGING H.-W. Thümmel, D. Fritzsche, J.W. Leonhardt: EXPERIMENTAL AND THEORETICAL SENSITIVITIES OF THE 60 keV-SCATTER-TRANSMISSION METHOD TO SAMPLE COMPOSITION AND DENSITY M. Frenzel: A NEW METHOD TO EXCLUDE THE INFLUENCE OF SAMPLE INHOMOGENEITIES ON THE SIGNAL OF RADIOMETRIC TRANSMISSION MEASUREMENTS
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  • 93
    Series available for loan
    Series available for loan
    Leipzig : Academy of Sciences of the GDR, Central Institute of Isotope and Radiation Research
    Associated volumes
    Call number: AWI G6-19-91927-3
    In: Third Working Meeting Radioisotope Application and Radiation Processing in Industry, Vol. 3
    Type of Medium: Series available for loan
    Pages: XIX, Seite 749-1095 , Illustrationen
    Language: English
    Note: VOLUME III PART 2 : POSTER CONTRIBUTIONS (continued) M. Braune: SIMPLIFIED MATHEMATICAL MODELS FOR BACKSCATTERING OF X-RAYS H.-W. Thümmel, G. Korner, J.W. Leonhardt: STATE AND PERFORMANCE OF ON-STREAM ASH CONTENT DETERMINATION IN LIGNITE AND BLACK COAL USING THE 2-ENERGY TRANSMISSION TECHNIQUE H.-W. Thümmel, G. Korner, Oh. Beutel, W. Riedel, U. Gräfenhain, J.W. Leonhardt: KRAS-2 - A GAUGE FOR THE ON-STREAM DETERMINATION OF THE ASH CONTENT IN RAW LIGNITE AT POWER STATIONS D. Fritzsche, H.-W. Thümmel: A SCATTER MODEL FOR CAlCULATION OF GAMMA RAY INTENSITIES IN SCATTER-TRANSMISSION GEOMETRY L. Meray, E. Hazi: DECONTAMINATION TEST WITH ISOTOPE INDUCED X-RAY FLUORESCENCE METHOD H. Silveira da Silva: CALCULATION OF THE DOSIMETER RESPONSE AS A FUNCTION OF THE GAMMA RADIATION ENERGY L. Wawrzonek, J. Parus: OPTIMIZATION OF RADIOMETRIC METHOD OF ASH CONTENT DETERMINATION IN BROWN COAL SAMPLES G. Körner, G. Fischer, D. Fritzsche, J.W. Leonhardt, K. Rosenbaum, H.-W. Thümmel: EXPERIENCE IN RADIOMETRIC ON-LINE DETERMINATION R. Göldner, E. Maul, D. Wagner: FAST NEUTRON ACTIVATION ANALYSIS OF BROWN COAL SAMPLES FOR SILICON AND ASH B. Heinrich, K. Irmer, R. Pötschke: FAST ANALYSIS OF CARBON CONTENT BY INELASTIC SCATTERING OF NEUTRONS H.-W. Thümmel, M. Frenzel, D. Fritzsche, T. Cechak, J. Kluson: INFLUENCE OF SAMPLE INHOMOGENEITIES ON THE SIGNAL OF 60 keV SCATTER-TRANSMISSION ASH GAUGES W. Michel, U. Paul, D. Luther, H.-G. Könnecke, H.-C. Abendroth: STUDIES ON THE RESIDENCE TIME BEHAVIOUR OF TECHNICAL GRAIN SIZES IN FLUIDIZED BEDS Z. Kolar, J. Thýn, W. Martens, A. Korving: THE MEASUREMENT OF GAS RESIDENCE TIME DISTRIBUTION IN A PRESSURIZED FLUIDIZED-BED COMBUSTOR USING 41Ar AS RADIOTRACER E. Iller, B.J. Trznadel: OPERATION EFFICIENCY ASSESSMENT OF LOOP REACTOR FOR COAL LIQUEFACTION, ON THE GROUNDS OF RADIOTRACER INVESTIGATIONS K. Wagner, T. Grätsch, J. Schüttau: PROCESS ANALYSIS OF THE TECHNOLOGY FOR THE PRODUCTION OF GRAPHITE ELECTRODES BY THE AID OF RADIOISOTOPES G. Krüger, V. Kliem, M. Kreher, N. Boy: A COMPUTER-AIDED X-RAY FLUORESCENCE ANALYZER WITH RADIONUCLIDE EXCITATION H. Firganek, A. Żak, J. Siewierski, S. Zielienski: RADIOISOTOPE INVESTIGATIONS OF WATER LEACHING OF VANADIUM COMPOUNDS FROM POLYMETALLIC ORE D. Degering, S. Unterricker: DETERMINATION OF SMALL YTTRIUM CONCENTRATIONS IN GEOLOGICAL SAMPLES BY CHARGED PARTICLE ACTIVATION ANALYSIS J. Parus: DETERMINATION OF RARE EARTH ELEMENTS WITH RADIOISOTOPE EXCITED X-RAY FLUORESCENCE E. Kowalska, P. Urbański, D. Wagner, H. Bruchertseifer: DETERMINATION OF SILVER CONTENT IN SOME CARRIER MATERIALS BY X-RAY FLUORESCENCE TECHNIQUE L. Rowinska, L. Waliś, W. Dalecki, M. Kusowski: EFFICIENCY OF METAL PURIFICATION BY VACUUM DISTILLATION TECHNIQUE A. Salamon, Z. Demendy: AN EXPERIMENTAL AND THEORETICAL STUDY FOR THE MOTION AND TRAPPING OF INCLUSIONS DURING CONTINUOUS CASTING OF STEEL L. Petryka, Z. Stegowski, L. Furman: COMPLEX INVESTIGATIONS OF COPPER ORE DRESSING PROCESS L. Petryka, Z. Stegowski, L. Furman: MODELLING OF COPPER ORE CONCENTRATION PROCESS J. Palige: RADIOTRACER INVESTIGATION OF THE COPPER PRODUCTION FLASH PROCESS R. Rachlitz, J. Holzhey, W. Böhme, H. Bohmeier, H. Gärtner: SULPHUR DISTRIBUTION, PRINCIPLE OF SOLIDIFICATION AND THE MORPHOLOGY OF THE LIQUID-SOLID INTERFACE IN CONTINOUS COPPER CASTING H. Jaskolska., L. Waliś, C. Janusz: INVESTIGATIONS OF CALCIUM DISTRIBUTION IN GGG MONOCRYSTALS BY MEANS OF LABELLED ATOMS METHOD M. Harasimowicz, J. Palige: RADIOTRACER INVESTIGATIONS OF THE GLASS MELTING PROCESS IN TANK FURNACES G. Philipp, H. Hippius, K. Köpping, H. Ulrich: SUITABILITY OF DIFFERENT RADIOTRACERS FOR IDENTIFICATION OF HOMOGENIZING PROCESSES IN GLASS MELTING FURNACES H. Kupsch, W. Heller: AN ACCELERATOR PRODUCED SHORT-LIVED RADIONUCLIDE FOR THE TRACERTECHNIQUE OF GYPSUM IN A LARGE SCALE PRODUCTION PLANT OF GAS CONCRETE W. Stuchlik, A. Knobloch, B. Kupsch, H.-W. Thümmel, S. Volker: RADIOMETRIC RESIDUAL VOLUME MONITORING IN LARGE BINS USING A MICROCOMPUTER D. Eckstein, H.-G. Jäckel, H. Stechemesser, D. Espig: RADIAL DISTRIBUTION OF MATERIAL IN A BOND MILL DETERMINED BY RADIOTRACER TECHNIQUE A. Zeuner, K. Henning, M. Kiessling: INVESTIGATION OF THE MATERIAL TRANSPORT BEHAVIOUR OF TUBE- AND TROUGH- VIBRATION MILLS BY RADIOACTIVE INDICATORS H. Kupsch, W. Heller: A METHOD FOR THE DETERMINATION OF THE EFFICIENCY OF A WET MIXER K.-D. Weißenborn, H.-P. Chowanetz, H. Ulrich, K. Köpping: RADIOTRACER INVESTIGATIONS IN LARGE HOMOGENIZATION SILOS TO DETERMINE THE MOTION OF PARTICLES OF DIFFERENT SIZES G.-J. Beyer, M. Böttger, K. Eichhorn, H. Guratzsch, H. Kupsch, K. Regel, G. Winter: USING OF THE ROSSENDORF CYCLOTRON U-120 IN SCIENCE, MEDICINE AND TECHNOLOGY M. Waiblinger, T. Kuhrt, H. Bergmann, K. Hertwig, K. Köpping, H. Ulrich: RADIOTRACER INVESTIGATIONS IN ELECTROLYSE CELLS - SPECIAL PROBLEMS AND USE FOR PROCESS CONTROL K.-D. Rauchstein, H. Leder, W. Walter, K. Köpping, H. Ulrich: RADIOTRACER INVESTIGATIONS IN TECHNICAL MULTIPHASE SYSTEMS AND PRACTICAL USE FOR THE VALUATION OF HYDRODYNAMIC CONDITIONS IN CHEMICAL MULTISTAGE COLUMNES E. Iller, T. Klimkiewicz: OPERATION ANALYSIS OF DIGESTER IN THE CONTINUOUS COOKING PROCESS OF PINEWOOD CHIPS, ON THE GROUNDS OF RADIOTRACER INVESTIGATIONS H. Vocke: DETERMINATION OF RESIDENCE TIME DISPERSION OF POLYMER MELTS IN SPINNING MACHINES BY TRACER APPLICATION J. Flachowsky, H.-H. Deicke: A SIMPLE MONITORING TECHNIQUE TO MEASURE THE RADIOACTIVITY LEVEL OF MEMBRANE FILTERS J. Flachowsky: DETERMINATION OF THE KINETICS OF TRACE ELEMENT ADSORPTION ON SEMICONDUCTOR SURFACES USING RADIOANALYTICAL AND AUTORADIOGRAPHIC METHODS
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  • 94
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-87/15
    In: CRREL Report, 87-15
    Description / Table of Contents: Constant strain-rate tension tests were conducted on remolded saturated frozen Fairbanks silt at various temperatures, strain rates, and densities. It was found that the critical strain rate of the ductile-brittle transition is not temperature-dependent at temperatures down to -5°C, but varies with density. The peak tensile strength decreases considerable with decreasing strain rate for ductile failure, but it decreases slightly with increasing strain rate for brittle fracture. The failure strain remains almost constant at temperatures lower than about -2°C, but it varies with density and strain rate at -5°C. The initial tangent modulus is independent of strain rate and increases with decreasing temperature and density.
    Type of Medium: Series available for loan
    Pages: v, 29 Seiten , Illustrationen
    Series Statement: CRREL Report 87-15
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Testing Material Specimen preparation Testing procedure and apparatus Results Discussion Peak tensile strength, σm Failure tensile strain, ϵf Initial tangent modulus and 50% peak strength modulus Discussion of test techniques Conclusions Literature cited Appendix A: Physical properties of Fairbanks silt specimens Appendix B: Unfrozen water content data of Fairbanks silt with three typical water contents
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  • 95
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-87/21
    In: CRREL Report, 87-21
    Description / Table of Contents: The author measured time series of longitudinal (u) and vertical (w) velocity and temperature (t) and humidity (q) fluctuations with fast-responding sensors in the near-neutrally stable surface layer over a snow-covered field. These series yielded individual spectra and u-w, w-t, w-q and t-q cospectra, phase spectra and coherence spectra for nondimensional frequencies (fz/U) from roughly 0.001 to 10. With the exception of the u-w cospectra, all the spectra and cospectra displayed the expected dependence on frequency in an inertial or inertial-convective subrange. All, however, contained significantly more energy at low frequency than the Kansas neutral-stability spectra and cospectra. This excess low-frequency energy and the erratic behavior of the u-w cospectra imply that forested hills bordering the site on two sides were producing disturbances in the flow field at scales roughly equal to the height of the hills, 100 m. The phase and coherence spectra suggest that internal gravity waves were also frequently present, since the atmospheric boundary layer generally had slightly stable stratification. Consequently, at this complex site, turbulence alone determines the spectra and cospectra at high frequency; at low frequency the spectra and cospectra reflect a combination of topographically generated turbulence and internal waves. From the measured temperature and humidity spectra and the t-q cospectra, the author computed refractive index spectra for light of 0.55-micrometer and millimeter wavelengths. The refractive index spectra had shapes like the other scalar spectra: excess energy at low frequency and an inertial-convective subrange at high frequency.
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    Pages: v, 50 Seiten , Illustrationen
    Series Statement: CRREL Report 87-21
    Language: English
    Note: CONTENTS Abstract Preface Introduction Measurements Spectra u and w velocity spectra Temperature and humidity spectra Inertial-dissipation estimates Cospectra u-w cospectra w-t and w-q cospectra t-q cospectra Refractive index spectra Conclusions Literature cited
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  • 96
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-87/20
    In: CRREL Report, 87-20
    Description / Table of Contents: The structure and salinity characteristics of saline ice slabs removed from ice sheets grown in an outdoor pool have been studied and related to the complex relative dielectric permittivity measured with free-space transmission techniques at 4.80 and 9.50 GHz. The saline ice closely simulated arctic sea ice in its structural and salinity characteristics, which were regularly monitored in a number of ice sheets grown during the winters of 1983-84 and 1984-85. In-situ transmission measurements at similar frequencies were also made on the ice sheets themselves using antennas located above and beneath the ice. The slab measurements were made during warming from -29° to -2°C on slabs grown during the winter of 1983-84 (4.75 GHz) and during a warming and cooling cycle over a slightly larger temperature range on slabs grown during the winter of 1984-85 (4.80 and 9.50 GHz).
    Type of Medium: Series available for loan
    Pages: v, 41 Seiten , Illustrationen
    Series Statement: CRREL Report 87-20
    Language: English
    Note: CONTENTS Abstract Preface Part I - Structural properties Introduction Experimental setup Analytical techniques Results and discussion 1983-84 experiments 1984-85 experiments Conclusions and recommendations Part Il - Microwave properties Introduction Measurement techniques Results 1983-84 experiments 1984-85 experiments 1984-85 in-situ experiments Discussion Comparison of data Analytical modeling Summary and conclusions Literature cited Appendix A: Dielectric mixing model of sea ice
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  • 97
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    Series available for loan
    Helsinki : Department of Meteorology
    Associated volumes
    Call number: MOP Per 781(26)
    In: Report / Department of Meteorology, 26
    Type of Medium: Series available for loan
    Pages: 41 Seiten
    Series Statement: Report / Department of Meteorology 26
    Language: English
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 98
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-87/22
    In: CRREL Report, 87-22
    Description / Table of Contents: This review discusses problems associated with the anomalous temperature-density relations of water. It covers a) onset of convection, b) temperature structure and natural convective heat transfer, and c) laminar forced convective heat transfer in the water/ice system. The onset of convection in a water/ice system was found to dependent on thermal boundary conditions, not a constant value as in the classical fluids that have a monotonic temperature-density relationship. The water/ice system also exhibits a unique temperature distribution in the melt layer immediately after the critical Rayleigh number is exceeded and soon after it establishes a more or less constant temperature region progressively deepening as the melt layer grows. The constant temperature is approximately 3.2°C for water layers formed from above but varies for melt layers from below. The heat flux across the water/ice interface was found to be a weak power function and to increase linearly with temperature for melted layers from above and below, respectively.
    Type of Medium: Series available for loan
    Pages: vi, 43 Seiten , Illustrationen
    Series Statement: CRREL Report 87-22
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Analytical studies on the onset of convection in a horizontal water layer Experimental studies on the onset of convection in a circular horizontal melt layer Temperature structure and heat transfer In a horizontal layer In a circular horizontal melt layer pHeat transfer studies in nonplanar geometries Forced convective heat transfer over a melting surface Discussion and conclusions Onset of convection Temperature structure and natural convective heat transfer Laminar forced convective heat transfer Literature cited
    Location: AWI Archive
    Branch Library: AWI Library
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  • 99
    Call number: ZSP-201-84/16
    In: CRREL Report, 84-16
    Description / Table of Contents: Phase composition curves are presented for a typical saline silt from Lanzhou, P.R.C., and compared to some silts from Alaska. The unfrozen water content of the Chinese silt is much higher than that of the Alaskan silts due to the large amount of soluble salts present in the silts from China, which are not present in silt from interior Alaska. When the salt is removed, the unfrozen water content is then similar for both the Chinese and Alaskan silt. Here we introduce a technique for correcting the unfrozen water content of partially frozen soils due to high salt concentrations. We calculate the equivalent molality of the salts in the unfrozen water at various temperatures from a measurement of the electrical conductivity of the extract from saturated paste.
    Type of Medium: Series available for loan
    Pages: iii, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 84-16
    Language: English
    Note: Contents Abstract Preface Introduction Background Materials Sample preparation Nuclear magnetic resonance Specific surface area Electrical conductivity Results and discussion Summary Literature cited Appendix A: Unfrozen water content vs temperature data for Lanzhou silt
    Location: AWI Archive
    Branch Library: AWI Library
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  • 100
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/11
    In: CRREL Report, 84-11
    Description / Table of Contents: Data obtained from two sets of data buoys either air-dropped or deployed by ship onto the Weddell Sea pack ice during the period from Dec 1978 to Nov 1980 are presented. The buoy data include position, pressure and temperature information and to date represent the most complete combined weather and pack ice drift records for the ice-covered Southern Ocean regions. The buoys tended to drift north initially and then to turn east generally between latitudes 62°S and 64°S. Buoy 1433 turned east farther south at approximately 67°S but at about the same time as buoy 0527, implying that the westerly wind belt was farther south than usual in 1979. The range of air pressures-from about 950 mb to about 1020 mb is typical of the circumpolar low pressure trough in the Southern Hemisphere. All buoys were equipped with an internal or compartment temperature sensor. The 1980 buoys also contained an external air temperature sensor in a ventilated, shielded can at 1-m height. Although differences of 10°C or more between recorded air and compartment temperatures are common, the correlation between the two measured temperatures is generally very good. The compartment temperatures are higher probably because the buoy is radiationally heated. We found that subtracting 3°C from the average daily compartment temperature yielded a good estimate of the average air temperature for any given day. This technique can be used to construct average daily air temperature records for the 1979 buoys which only contained the internal or compartment temperature sensor.
    Type of Medium: Series available for loan
    Pages: v, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 84-11
    Language: English
    Note: CONTENTS Abstract Preface Introduction Methods and instrumentation Results Drift tracks Pressure data Temperature data Discussion Conclusions Literature cited
    Location: AWI Archive
    Branch Library: AWI Library
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