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  • 1
    Signatur: ZSP-201-86/13
    In: CRREL Report, 86-13
    Beschreibung / Inhaltsverzeichnis: 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.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 148 Seiten , Illustrationen
    Serie: CRREL Report 86-13
    Sprache: Englisch
    Anmerkung: 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.
    Standort: AWI Archiv
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  • 2
    Signatur: ZSP-SCAR-570-3
    In: National Antarctic Research Report to SCAR, No. 3
    Materialart: Schriftenreihen ausleihbar
    Seiten: 16 Seiten
    ISSN: 0179-0072
    Serie: National Antarctic Research Report to SCAR 3
    Sprache: Englisch
    Anmerkung: 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 80-October 81. - II. Planned Activities, October 81-October 82. - References.
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  • 3
    Schriftenreihen ausleihbar
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    Leipzig : Academy of Sciences of the GDR, Central Institute of Isotope and Radiation Research
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    Signatur: AWI G6-19-91927-3
    In: Third Working Meeting Radioisotope Application and Radiation Processing in Industry, Vol. 3
    Materialart: Schriftenreihen ausleihbar
    Seiten: XIX, Seite 749-1095 , Illustrationen
    Sprache: Englisch
    Anmerkung: 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
    Standort: AWI Lesesaal
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  • 4
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-83/11
    In: CRREL Report, 83-11
    Beschreibung / Inhaltsverzeichnis: Investigations of ground radar performance over thawed and seasonally frozen silts, and sands and gravels containing artificial and natural reflectors were carried out in Alaska. The radar emitted 5-10 ns pulses, the center frequency of which was approximately 150 MHz. The artificial reflectors were metal sheets and discs and the natural reflectors were the groundwater table and interfaces between frozen and thawed material. The water table was profiled at three sites where the subsurface material was coarse-grained alluvium. Dielectric constants of 16 to 18 were measured for the thawed silts, 6 to 7 for the frozen silts and 3 to 9 for the sands and gravels. Signal penetration in the thawed high moisture content silts may be achieved only by use of a lower frequency radar, whereas in the sands and gravels greater depths may be detected with more sophisticated signal processing.
    Materialart: Schriftenreihen ausleihbar
    Seiten: 16 Seiten , Illustrationen
    Serie: CRREL Report 83-11
    Sprache: Englisch
    Standort: AWI Archiv
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  • 5
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-83/17
    In: CRREL Report, 83-17
    Beschreibung / Inhaltsverzeichnis: A sea ice model was applied to the East Greenland Sea to examine a 60-day ice advance period beginning 1 October 1979. This investigation compares model results using driving geostrophic wind fields derived from three sources. Winds calculated from sea-level pressures obtained from the National Weather Service's operational analysis system resulted in strong velocities concentrated in a narrow band adjacent to the Greenland coast, with moderate velocities elsewhere. The model showed excessive ice transport and thickness build-ups in the coastal region. The extreme pressure gradient parallel to the coast resulted partially from a pressure reduction procedure that was applied to the terrain-following sigma coordinate system to obtain sea-level pressures. Additional sea-level pressure fields were obtained from an independent optimal interpolation analysis that merged FGGE buoys drifting in the Arctic basin with high latitude land stations and from manual digitization of the NWS hand-analyzed Northern Hemisphere Surface Charts. Modeling results using winds from both of these fields agreed favorably.
    Materialart: Schriftenreihen ausleihbar
    Seiten: 19 Seiten , Illustrationen
    Serie: CRREL Report 83-17
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Description of study Model results The problem Conclusions Literature cited
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  • 6
    Signatur: ZSP-201-83/24
    In: CRREL Report, 83-24
    Beschreibung / Inhaltsverzeichnis: Secondary recovery of oil at Prudhoe Bay, Alaska, will involve transporting large quantities of seawater in elevated pipelines across tundra for injection into oil-bearing rock strata. The possibility of a pipeline rupture raises questions concerning the effects of seawater on tundra vegetation and soils. To evaluate the relative sensitivities of different plant communities to seawater, eight sites representing the range of vegetation types along the pipeline route were treated with single, saturating applications of seawater during the summer of 1980. Within a month of the treatment 30 of 37 taxa of shrubs and forbs in the experimental plots developed clear symptoms of stress, while none of the 14 graminoid taxa showed apparent adverse affects. Live vascular plant cover was thus reduced by 89 and 91% in the two dry sites and by 54, 74 and 83% in the three moist sites, respectively. Live(green) bryophyte cover was markedly reduced in the moist experimental sites in 1981. Bryophytes in all but one of the wet-site experimental plots were apparently unaffected by the seawater treatment. Two species of foliose lichens treated with seawater showed marked deterioration in 1981. All other lichen taxa were apparently unaffected by the seawater treatment. The absorption and retention of salts by the soil is inversely related to the soil moisture regime. In the wet sites, conductivities approached prespill levels within about 30 days. In such sites, spills at the experimental volumes are quickly diluted and the salts flushed from the soil. In the dry sites, on the other hand, salts are retained in the soil, apparently concentrating at or near the seasonal thaw line.
    Materialart: Schriftenreihen ausleihbar
    Seiten: 43 Seiten , Illustrationen
    Serie: CRREL Report 83-24
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Methods Site selection and preparation Prespill assessment Seawater application Postspill assessment Enzyme assay and analysis of soil flora Results and discussion Soil-solution conductivities Vascular plant response Cryptogam response Site factors and plant response Soil flora and extracellular soil enzymes Limitations of this study Summary and conclusions Literature cited Appendix: Plant taxa included in this study
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  • 7
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-83/29
    In: CRREL Report, 83-29
    Beschreibung / Inhaltsverzeichnis: A literature review indicated that the effects or permafrost on streambank erodibility and stability are not yet understood because systematic and quantitative measurements are seriously lacking. Consequently, general controversy exists as to whether perennially frozen ground inhibits lateral erosion and bankline recession, or whether it increases bank recession rates. Perennially frozen streambanks erode because of modification of the bank's thermal regime by exposure to air and water, and because of various erosional processes. Factors that determine rates and locations of erosion include physical, thermal and structural properties of bank sediments, stream hydraulics and climate. Thermal and physical modification of streambanks may also induce accelerated erosion within permafrost terrain removed from the immediate river environment. Bankline or bluffline recession rates are highly variable, ranging from less than 1 m/year to over 30 m/year and, exceptionally, to over 60 m/year. Long-term observations of the physical and thermal erosion processes and systematic ground surveys and measurements of bankline-bluffline recession rates are needed.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 26 Seiten , Illustrationen
    Serie: CRREL Report 83-29
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Stream bank erosional processes Permafrost and related factors Permafrost and erosion General Erosional processes Bank zone processes Bluff zone processes Factors affecting perm afrost erodibility Exposure to currents and wind waves Texture and stratigraphy Ice content, distribution and type Slope aspect Coriolis force Timing and depth of thaw Water level and temperature Vegetation Ice and snow cover Groundwater Rates and timing of erosion and recession Overall effects of permafrost Recommendations for research Literature cited Appendix A : Processes of stream bank modifications
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  • 8
    Signatur: ZSP-201-86/3
    In: CRREL Report, 86-3
    Beschreibung / Inhaltsverzeichnis: 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.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vii, 85 Seiten , Illustrationen
    Serie: CRREL Report 86-3
    Sprache: Englisch
    Anmerkung: 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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  • 9
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-86/9
    In: CRREL Report, 86-9
    Beschreibung / Inhaltsverzeichnis: 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.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 26 Seiten , Illustrationen
    Serie: CRREL Report 86-9
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Aerodynamically rough surface Aerodynamically smooth surface Scalar transfer coefficients Conclusions Literature cited
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  • 10
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-86/8
    In: CRREL Report, 86-8
    Beschreibung / Inhaltsverzeichnis: 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
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 31 Seiten , Illustrationen
    Serie: CRREL Report 86-8
    Sprache: Englisch
    Anmerkung: 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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  • 11
    Signatur: MOP 46646 / Mitte
    Materialart: Monographie ausleihbar
    Seiten: IX, 221 Seiten
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 12
    Signatur: MOP 46624 / Mitte
    In: Effects of changes in stratospheric ozone and global climate
    Materialart: Monographie ausleihbar
    Seiten: 4 Bände
    Serie: Effects of changes in stratospheric ozone and global climate
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 13
    Signatur: MOP 46624/1 / Mitte
    In: Effects of changes in stratospheric ozone and global climate
    Materialart: Monographie ausleihbar
    Seiten: VII, 379 Seiten
    Serie: Effects of changes in stratospheric ozone and global climate 1
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 14
    Signatur: MOP 46624/2 / Mitte
    In: Effects of changes in stratospheric ozone and global climate
    Materialart: Monographie ausleihbar
    Seiten: VII, 319 Seiten
    Serie: Effects of changes in stratospheric ozone and global climate 2
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 15
    Signatur: MOP 46624/3 / Mitte
    In: Effects of changes in stratospheric ozone and global climate
    Materialart: Monographie ausleihbar
    Seiten: VI, 293 Seiten
    Serie: Effects of changes in stratospheric ozone and global climate 3
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 16
    Signatur: MOP 46624/4 / Mitte
    In: Effects of changes in stratospheric ozone and global climate
    Materialart: Monographie ausleihbar
    Seiten: VI, 193 Seiten
    Serie: Effects of changes in stratospheric ozone and global climate 4
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 17
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    Leipzig : Academy of Sciences of the GDR, Central Institute of Isotope and Radiation Research
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    Signatur: AWI G6-19-91927-1
    In: Third Working Meeting Radioisotope Application and Radiation Processing in Industry, Vol. 1
    Materialart: Schriftenreihen ausleihbar
    Seiten: 375 Seiten , Illustrationen
    ISSN: 0323-8776
    Sprache: Englisch
    Anmerkung: 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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  • 18
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Leipzig : Academy of Sciences of the GDR, Central Institute of Isotope and Radiation Research
    Dazugehörige Bände
    Signatur: AWI G6-19-91927-4
    In: Third Working Meeting Radioisotope Application and Radiation Processing in Industry, Vol. 4
    Materialart: Schriftenreihen ausleihbar
    Seiten: XIX, Seite1097-1458 , Illustrationen
    Sprache: Englisch
    Anmerkung: 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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  • 19
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-83/4
    In: CRREL Report, 83-4
    Beschreibung / Inhaltsverzeichnis: Measurements and analysis of seasonal ice growth and decay on Post Pond, New Hampshire, for the period 1973-1982 are presented. Observations included ice thickness measurements, examination of the various ice types contributing to the ice cover, and measurements of meteorological parameters for correlation with and modeling of the ice growth process. The overall nature of ice growth and decay (ice loss) on the Post Pond has been ascertained, the seasonal variability in the timing of freeze-up and ice-out and the duration of the ice cover have been determined, and the relationship of ice growth to freezing-degree-day (deg C) records evaluated on the basis of a Stefan conduction equation modified to deal with ice sheets covered with or free of snow. Ice growth occurs predominantly by the direct freezing of lake water, but snow ice may compose as much as 50% of the ice cover in winters with higher than average snowfall. Freeze-up leading to the establishment of a stable ice cover occurs during the 4-week period from the end of November to the end of December. Maximum seasonal ice thicknesses were from 45 to 67 cm and are generally attained during the first two weeks of March; ice-out, marking the final disappearance of ice from Post Pond, usually occurs by the third week of April. The overall rate of the ice loss is three to four times that of ice growth, and is dominated initially by melting from the top. As much as 50% of the ice may be lost in this way before the onset of any bottom melting. Final dissipation of the ice cover is usually expedited by candling resulting from preferential melting and disintegration of the ice at crystal boundaries.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 30 Seiten , Illustrationen
    Serie: CRREL Report 83-4
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Location of study Study methods Ice thickness Ice-cover composition Surface air temperatures Freeze-up and ice-out characteristics Results and discussion Ice-growth record Freezing-degree-day records Ice-growth predictions Summary and conclusions Literature cited Appendix A: Ice-growth records Appendix B: Measured and computed ice-growth curves
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  • 20
    Monographie ausleihbar
    Monographie ausleihbar
    Washington, D.C. : Mineralogical Society of America
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    Signatur: 11/M 19.92803
    In: Reviews in mineralogy, 6
    Materialart: Monographie ausleihbar
    Seiten: ix, 380 Seiten , Illustrationen, Diagramme
    Ausgabe: second printing
    ISBN: 978-0-939950-06-5
    Serie: Reviews in mineralogy 6
    Sprache: Englisch
    Standort: Lesesaal
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  • 21
    Monographie ausleihbar
    Monographie ausleihbar
    Washington, D.C. : Mineralogical Society of America
    Dazugehörige Bände
    Signatur: 11/M 19.92819
    In: Reviews in mineralogy, 27
    Materialart: Monographie ausleihbar
    Seiten: xv, 516 Seiten , Illustrationen, Diagramme
    Ausgabe: second printing
    ISBN: 0-939950-32-4
    Serie: Reviews in mineralogy 27
    Sprache: Englisch
    Standort: Lesesaal
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  • 22
    Monographie ausleihbar
    Monographie ausleihbar
    New York [u.a.] : Wiley [u.a.]
    Signatur: PIK M 490-19-93049
    Materialart: Monographie ausleihbar
    Seiten: XV, 329 Seiten , Illustrationen, Diagramme , 25 cm
    ISBN: 0471849677 , 2705659803
    Originaltitel: L'ordre dans le chaos 〈engl.〉
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
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  • 23
    Signatur: MOP 45206 / Mitte
    In: Daily Global Analyses
    Materialart: Monographie ausleihbar
    Seiten: 6, 381 Seiten , graphische Darstellungen
    Serie: Daily Global Analyses Part 2
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
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  • 24
    Signatur: MOP 45206 / Mitte
    In: Daily Global Analyses
    Materialart: Monographie ausleihbar
    Seiten: 6, 371 Seiten , graphische Darstellungen
    Serie: Daily Global Analyses Part 3
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 25
    Signatur: AWI P6-20-93428
    Materialart: Monographie ausleihbar
    Seiten: VII, 40 Seiten , Illustrationen
    Sprache: Englisch
    Anmerkung: Contents 1 Executive summary 2 Introduction 3 The broad scientific problems 4 Specific scientific problems: a topical view 5 The resources issue 6 A strategy for planning and conducting research Transect Zone Number 1 (Weddell Transect Zone) Transect Zone Number 2 (Ross Transect Zone) Transect Zone Number 3 (Amery Transect Zone) Circum-Antarctic Studies 7 Broad scientific priorities 8 A methodology and chronology for proposed work 9 Special concerns References
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  • 26
    Signatur: MOP 47169 / Mitte
    Materialart: Monographie ausleihbar
    Seiten: I, 209 Seiten , Illustrationen , 30 cm
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 27
    Zeitschrift ausleihbar
    Zeitschrift ausleihbar
    Washington, D.C. : National Aeronautics and Space Administration
    Signatur: MOP 47316 / Mitte
    Materialart: Zeitschrift ausleihbar
    Seiten: 83 Seiten
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 28
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Bratislava : Hydrometeorological Service of Czechoslovakia
    Signatur: MOP 46808 / Mitte
    Materialart: Schriftenreihen ausleihbar
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 29
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-81/19
    In: CRREL Report, 81-19
    Beschreibung / Inhaltsverzeichnis: Field observations support the interpretation that differences in the strength of radar returns from the ice covers of lakes on the North Slope of Alaska can be used to determine where the lake is frozen completely to the bottom. An ice/frozen soil interface is indicated by a weak return and an ice/ water interface by a strong return. The immediate value of this result is that SLAR (side-looking airborne radar) imagery can now be used to prepare maps of large areas of the North Slope showing where the lakes are shallower or deeper than 1.7m (the approximate draft of the lake ice at the time of the SLAR flights). The bathymetry of these shallow lakes is largely unknown and is not obvious from their sizes or outlines. Such information could be very useful, for example in finding suitable year-round water supplies.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 17 Seiten , Illustrationen
    Serie: CRREL Report 81-19
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction The experiment Results Maps of completely frozen North Slope lakes Literature cited
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  • 30
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-81/20
    In: CRREL Report, 81-20
    Beschreibung / Inhaltsverzeichnis: A historical review of research is presented to establish the state- of-the-art for analyzing the behavior of vehicles in shallow snow. From this review, the most comprehensive and promising model is put together to establish a first-cut performance prediction model for vehicles operating in shallow snow, slush, ice and thawing soils.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 21 Seiten , Illustrationen
    Serie: CRREL Report 81-20
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface List of symbols Introduction Historical review Model selection Traction Resistance Slush and thawing soils Ice, hard-packed snow, packed snow River and lake ice Model use Conclusions Literature cited
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  • 31
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-81/18
    In: CRREL Report, 81-18
    Beschreibung / Inhaltsverzeichnis: During the growing seasons of 1977, 1978, and 1979, revegetation techniques were studied on the Chena River Lakes Project, a flood control dam and levee near Fairbanks, Alaska, to find an optimal treatment for establishing permanent vegetation cover on the gravel structures. The treatments tested on plots at the dam andor levee involved three main variables 1 vegetation grass and clover seed andor willow cuttings, 2 mulch, mulch blanket, andor sludge, and 3 substrate gravel or fine-grained soil over the gravel base. The mulches were hay, wood-cellulose-fiber, peat moss, and Conwed Hydro Mulch 2000, which is a wood-cellulose-fiber mulch with a polysaccharide tackifier. A constant rate of fertilizer was applied to all plots except the control. A section of each plot was refertilized again in their third growing season to compare annual and biannual fertilization. The high fertilization rate produced above-average growth. Fescue, brome, and foxtail were the most productive species on the dam, while alsike cover was the most productive on the wetter levee site. When grass seed and willow cuttings were planted at the same time, willow survival and growth were reduced. Fertilization is required for at least two years to produce an acceptable permanent vegetation cover, although fine- grained soil or sludge reduces the amount of fertilizer needed in the second year. Third-year fertilization may not be necessary since the benefits of the second fertilization continue for at least two years. A sludge treatment refertilized during its second growing season produces the highest biomass recorded in this study.
    Materialart: Schriftenreihen ausleihbar
    Seiten: ix, 59 Seiten , Illustrationen
    Serie: CRREL Report 81-18
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Abbreviations Conversion factors Summary Introduction Background Site characterization Climate Purpose Materials and methods General Moose Creek Dam site Tanana Levee site Sampling and measurement Abiotic controls on vegetation Meteorological data Soil moisture as a limiting factor Soil chemical analysis Vegetation growth and survival Moose Creek Dam site Tanana Levee site Biomass by species Roof penetration Seedling density of invading woody species Weeds Supplemental observations Sediment loss Sludge and runoff-water composition Cost analysis Conclusions Literature cited Appendix A: 1977 grass growth on 1977 dam treatments Appendix B: 1978 grass growth on 1977 dam treatments Appendix C: 1979 grass growth on 1977 dam treatments Appendix D: Grass growth on 1978 dam treatments Appendix E: 1977, 1978, and 1979 survival of willow treatments Appendix F: Grass growth on Tanana levee treatments Appendix C: Chemical analysis of sludge and runoff water
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  • 32
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-81/21
    In: CRREL Report, 81-21
    Beschreibung / Inhaltsverzeichnis: The reflection of solar radiation by a snow cover in situ and the apparent influence of selected substrates were examined in wavelength bands centered at 0.81, 1.04, 1.10, 1.30, 1.50 and 1.80 micrometers. Substrates included winter wheat, timothy, corn, alfalfa, grass, concrete and subsurface layers of 'crusty' snow and ice. Reasonable qualitative agreement between measurements and theoretical predictions was demonstrated, with indications of quantitative agreement in the definition of a 'semi-infinite depth' of snow cover. It was concluded that ultimate quantitative agreement between theory and measurement will require that an 'optically effective grain size' be defined in terms of physically measuarable dimensions or meteorologically predictable characteristics of the ice crystals composing the snowpack.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 17 Seiten , Illustrationen
    Serie: CRREL Report 81-21
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Experimental method Substrate preparation Experimental configuration Radiometric measurements Snow characterization Reflectance standards Data analysis Reflectance measurements Snow replica analysis Discussion of results Comparative reflectance of various substrates under snow Ablation of a snow cover Reflectance from a very light, fresh snow cover Measurements at angles other than vertical Reflectance from substrates Concluding observations Literature cited
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  • 33
    Signatur: MOP 47171 / Mitte
    Materialart: Monographie ausleihbar
    Seiten: 293 Seiten , Illustrationen
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 34
    Monographie ausleihbar
    Monographie ausleihbar
    Geneva : Secretariat of the World Meteorological Organization
    Signatur: MOP 45477 / Mitte
    Materialart: Monographie ausleihbar
    Seiten: 2, II, 47, 4 Seiten , Illustrationen
    Serie: Report 4
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 35
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Moscow : Academy of Sciences of the USSR, Soviet Committee on Antarctic Research
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    Signatur: MOP 46294/A / Mitte
    In: USSR national report to SCAR, No. 25
    Materialart: Schriftenreihen ausleihbar
    Serie: USSR national report to SCAR 25
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 36
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-81/15
    In: CRREL Report, 81-15
    Beschreibung / Inhaltsverzeichnis: This report analyzes the results of a field study previously reported by Scrivner et al. (1969) for the National Cooperative Highway Research Program. These authors studied the seasonal pavement deflection characteristics of 24 test sites on roads in service in regions with freezing indexes ranging from 100 F-days to 2100 F-days. They used the Dynaflect cyclic pavement loading device to determine the pavement system response. Of specific interest to my analysis was the increased pavement deflection after freezing and thawing and the time to recovery of normal deflection characteristics. These characteristics were related to soil and climatic factors using statistical techniques. The most significant observations of this statistical analysis are: (1) that the freezing index is not a significant parameter in determining the percent increase in pavement deflection during thawing, and (2) that the recovery time is inversely proportional to the depth of freezing. As was expected, the most significant variable affecting the increase in pavement deflection was the frost susceptibility classification. This observation reinforces the necessity for careful selection of soil materials used in pavement systems.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 10 Seiten , Ilustrationen
    Serie: CRREL Report 81-15
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Description of test site Test results Method of analysis Results of analysis Change in resilient deflection due to thawing, A Recovery time after onset of thawing, t20 Discussion of results Change in resilient deflection due to thawing, A. Recovery time after thawing, t20 Conclusions Literature cited ILLUSTRATIONS Figure Pavement deflection and frost penetration vs time Data points and regression line for A and t2 0 versus F Data points and regression line for A and t2 0 versus W Data points and regression line for A and t2 0 versus I Data points and regression line for A and t20 versus N Data points and regression line for A and t20 versus D Data points and regression line for t20 versus A Permeability vs void ratio for the Toledo Penn 7 material TABLES Properties of test sections Test results from Scrivner et al Results of regression analysis
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  • 37
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-81/16
    In: CRREL Report, 81-16
    Beschreibung / Inhaltsverzeichnis: An air-transportable shelter designed and built at CRREL for use in cold regions underwent testing in Hanover, New Hampshire, and Ft. Greely, Alaska. The shelter demonstrated some of its capabilities for mobility by being towed for more than 60 miles behind various vehicles and by being transported on a C-130 cargo airplane, a CH-47 helicopter, and a trailer truck. The shelter proved to be very easy for a crew of two to four to set up in all weather conditions including -40 F cold. However, the gasoline-powered generator, which was a source for space heat as well as electricity, functioned very poorly. Overall, the prototype successfully demonstrated qualities of self-reliance, ease of operation and thermal efficiency.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 20 Seiten , Illustrationen
    Serie: CRREL Report 81-16
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Metric conversion factors Summary Introduction Description of shelter Test procedures and results Mobility Ease of erecting and striking Therinal efficiency and performance Heat output Electrical system Habitation Safety features Water system Shelter reliability Structure Performance of other shelters Conclusions Future studies Literature cited
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  • 38
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-81/17
    In: CRREL Report, 81-17
    Beschreibung / Inhaltsverzeichnis: Environmental conditions are described for the continental shelf of the western Arctic, and for the shelf of Labrador and Newfoundland. Special emphasis is given to the gouging of bottom sediments by ice pressure ridges and icebergs, and an approach to systematic risk analysis is outlined. Protection os subsea pipelines and cables by trenching and direct embedment is discussed, touching on burial depth, degree of protection, and environmental impact. Conventional land techniques can be adapted for trenching across the beach and through the shallows, but in deeper water special equipment is required. The devices discussed include hydraulic dredges, submarine dredges, plows, rippers, water jets, disc saws and wheel ditchers, ladder trenchers and chain saws, routers and slot millers, ladder dredges, vibratory and percussive machines, and blasting systems. Consideration is given to the relative merits of working with seabed vehicles, or alternatively with direct surface support from vessels or from the sea ice
    Materialart: Schriftenreihen ausleihbar
    Seiten: 38 Seiten , Illustrationen
    Serie: CRREL Report 81-17
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction The western Arctic of North America The continental shelf of Newfoundland and Labrador Burial depth for pipes and cables Degree of protection offered by burial Environmental impact Trenching the beach and the shallows in the western Arctic Trenching beyond the shallows Suction, or hydraulic, dredging Bottom-t raveling cutterhead dredges Plows Rippers Water jets Subsea disc saws and wheel ditchers Subsea ladder trenchers and chain saws Subsea routers and slot millers Bucket ladder trenchers Vibratory and percussive devices Hard rock excavation under water Control and monitoring of subsea machines Vessels and vehicles Trenching from the sea ice Costs of subsea trenching Reference Appendix: Description of waters off Alaska and Newfoundland
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  • 39
    Schriftenreihen ausleihbar
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-81/3
    In: CRREL Report, 81- 3
    Beschreibung / Inhaltsverzeichnis: Abstract: A 1:24 scale hydraulic model study of water intake under frazil ice conditions is presented. The intake, located 9 m below the surface of the St. Lawrence River in Massena, New York,has a through flow of 0.14 m^3/s. The model study, conducted in the refrigerated flume facility of the U.S. Army Cold Regions Research and Engineering Laboratory, investigated methods of minimizing the frazil ice blockage on the intake. Two protective structures were modeled and the relative benefits of each are presented. The additional cross-sectional area provided by the protective structures lowered the vertical velocity component of the intake water to 0.0027 m/s. At this velocity the buoyant force acting on the frazil ice particle is larger than the downward drag force, causing the particle to rise. The results demonstrate that under certain low flow conditions a protective structure can minimize frazil ice blockage problems.
    Materialart: Schriftenreihen ausleihbar
    Seiten: 11 Seiten , Illustrationen
    Serie: CRREL Report 81-03
    Sprache: Englisch
    Standort: AWI Archiv
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  • 40
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-81/2
    In: CRREL Report, 81-2
    Beschreibung / Inhaltsverzeichnis: Abstract: Many hyperbolic reflections have been observed on marine seismic records obtained during oil exploration in the Beaufort Sea, and on USGS seismic sub-bottom profiles from the Prudhoe Bay vicinity. A hyperbolic projection system was designed to rapidly measure seismic velocities from the curves on the records. The velocities observed were approximately the velocity of sound in water. The hyperbolic signals also showed dispersion properties similar to acoustic normal modes in shallow water. These observations indicate that the signals responsible for the hyperbolic reflections propagate as normal modes within the water layer, with very limited penetration of the seabed. Determinations of the dominant frequency of these signals indicate that the penetration into the seabed has a characteristic attenuation depth (skin depth) of about 1.5 m for the sub-bottom profiles and 12 m for the marine records. It therefore appears that some hyperbolic reflections may be generated by variations in materials that occur near the seabed. There is some evidence of linearity of the anomalies, possibly related to sediment-filled or open ice gouges, or other changes in material properties at shallow depths.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 16 Seiten , Illustrationen
    Serie: CRREL Report 81-2
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Methods of analysis Marine seismic records Seismic sub-bottom profiles Results and discussion Distribution of hyperbolic reflections Hyperbolas on oil exploration records Hyperbolas on sub-bottom profiles Conclusions Literature cited Appendix A: Hyperbola projector
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  • 41
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-81/12
    In: CRREL Report, 81-12
    Beschreibung / Inhaltsverzeichnis: Revegetation techniques along the trans-Alaska pipeline as employed by Alyeska Pipeline Service Company during the 1975-1978 summers were observed. Objectives included determining the success of treatments, identifying problem areas, and noticing long-term implications. Observations and photographs at 60 sites located along the trans-Alaska pipeline indicated frequent occurrence of successful revegetation as well as frequent problems, such as erosion, slope instability, poor scheduling of seed application, occurrence of weed species, failure to optimally reuse topsoil and fine-grained soil, and low rates of native species reinvation. Alyeska's visual impact engineering was observed to be very successful, as shown by high first-season survival. However, a related program for establishing willow cuttings was unsuccessful in 1977 but appeared very promising in 1978 largely due to improved management and more favorable growing conditions. Terrain disturbances due to the construction of the fuel gas line, snowpads, and oil spills were examined to identify and describe related environmental impacts on natural vegetation. Proper construction and use of snowpads minimized the extent and severity of disturbance. Crude oil spills, although damaging to vegetation did not cause total kill of vegetation, and certain types of spills may have only short-term effects. Results of restoration research by CRREL along the trans-Alaska pipeline are discussed.
    Materialart: Schriftenreihen ausleihbar
    Seiten: 115 Seiten , Illustrationen
    Serie: CRREL Report 81-12
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Summary Introduction Revegetation procedures 1975-1978 construction seasons Willow cutting program Visual impact engineering program Selected terrain disturbances Fuel gas line and snowpads Island Lake and oil line snowpads Oil spills and revegetation CRREL restoration sites Conclusions Recommendations Literature cited Appendix A: List of sites observed during 1975 Appendix B: Annotated photographs of permanent revegetation observation sites-1975-1978 Appendix C: Photographic record of fuel gas line observation sites
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  • 42
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-81/13
    In: CRREL Report, 81-13
    Beschreibung / Inhaltsverzeichnis: Electrical properties of frozen ground were measured using radio frequency interferometry (RFI) in the very high frequency (VHF) radiowave band. Ice-rich organic silts and sands and gravels of variable ice content were investigated during early April of both 1979 and 1980. Frequencies between 10 and 150 MHz were used with best results obtained between 40 and 100 MHz. Surface impedance and magnetic induction techniques were also used to obtain an independent measure of low frequency resistivity and to obtain a separate control on vertical inhomogeneity. Soil samples were tested for organic and water content. The dielectric constants determined for the ice-rich organic silts ranged from 4.0 to 5.5 while those for the sands and gravels were about 5.1. Dielectric loss was due to d.c. conduction and was very low for the silts but significant for the sands and gravels. The higher values for the sands and gravels were most likely due to the higher concentrations of salt that are reported to exist in the old beach ridges in this region. All the RFI measurements are believed to be indicative of only the first few meters of the ground although the radiowaves could penetrate to tens of meters.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 18 Seiten , Illustrationen
    Serie: CRREL Report 81-13
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Background Objectives and procedures Theory and instrumentation Radio frequency interferometry Case 1: Homogeneous ground model Case 2: Two-layer ground model RFI instrumentation Low frequency methods Point Barrow sites Results and discussion Site 1: Tundra Site 2: Beach ridge Site 3: Marsh Conclusions Literature cited Appendix A: Discussion of low-frequency geophysical methods
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  • 43
    Signatur: MOP 46292/A / Mitte
    In: United Kingdom Antarctic research report, 1983
    Materialart: Schriftenreihen ausleihbar
    Serie: United Kingdom Antarctic research report 1983
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
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  • 44
    Monographie ausleihbar
    Monographie ausleihbar
    Reading, Berkshire : European Centre for Medium Range Weather Forecasts
    Signatur: MOP 45661 / Mitte
    Materialart: Monographie ausleihbar
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
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  • 45
    Signatur: AWI Bio-21-94346
    In: Bibliotheca diatomologica, 3
    Materialart: Monographie ausleihbar
    Seiten: 386 Seiten
    ISBN: 3768213757
    Serie: Bibliotheca diatomologica 3
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 46
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-86/2
    In: CRREL Report, 86-2
    Beschreibung / Inhaltsverzeichnis: 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.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 25 Seiten , Illustrationen
    Serie: CRREL Report 86-2
    Sprache: Englisch
    Anmerkung: 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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  • 47
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-86/5
    In: CRREL Report, 86-5
    Beschreibung / Inhaltsverzeichnis: 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.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 79 Seiten , Illustrationen
    Serie: CRREL Report 86-5
    Sprache: Englisch
    Anmerkung: 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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  • 48
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-86/10
    In: CRREL Report, 86-10
    Beschreibung / Inhaltsverzeichnis: 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.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 68 Seiten , Illustrationen
    Serie: CRREL Report 86-10
    Sprache: Englisch
    Anmerkung: 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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  • 49
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-83/18
    In: CRREL Report, 83-18
    Beschreibung / Inhaltsverzeichnis: An evaluation of an impulse radar system for detecting cavities under concrete pavement is discussed, and field results are presented. It was found that a dual antenna mode of surveying was ideal for void detection. In this mode one antenna operated in a transceive mode and a second, offset from the first, operated in a receive-only mode. This arrangement allowed a refraction-type profile survey to be performed, which enabled subpavement voids to be easily detected. Field trails were held at Plattsburgh Air Force Base, where 28 cavities were detected and mapped. Drilling of holes verified that a cavity existed and allowed cavity depth to be measured. The cavities varied from 1.5 in. to 23 in, depth and were up to 20 ft. long.
    Materialart: Schriftenreihen ausleihbar
    Seiten: 49 Seiten , Illustrationen
    Serie: CRREL Report 83-18
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Plattsburgh Air Force Base Radar sounding system Survey procedure Cavity inspection Radar cavity detection test Radar profile results Falling-weight deflectometer tests Discussion and conclusions Literature cited
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  • 50
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-83/13
    In: CRREL Report, 83-13
    Beschreibung / Inhaltsverzeichnis: A review on past experimental and theoretical work indicates a need for additional experimentation to characterize the response of snow to inelastic pressure waves. Pressure data from previously conducted explosion tests are analyzed to estimate the elastic limit of snow of 400 -kg/cu m density to be about 36 kPa. This pressure corresponds to a scaled distance of 1.6 m/cu.rt.kg for charges fired beneath the surface of the snow, and to a scaled distance of 1.2 m/cu.rt.kg for charges fired in the air. The effects of a snow cover on the method of clearing a minefield by using an explosive charge fired in the air above the snow surface are also discussed and recommendations are given for further work in this area. Explosive pressure data are used to estimate the maximum effective scaled radius for detonating buried mines at shallow depth to be 0.8 m/cu.rt.kg. Fuel-air explosive will increase this effective radius significantly because of the increase in the size of the source region.
    Materialart: Schriftenreihen ausleihbar
    Seiten: 33 Seiten , Illustrationen
    Serie: CRREL Report 83-13
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface List of symbols Introduction Objectives Background Problems in describing the response of snow to an applied stress Methods of determining the dynamic behavior of materials Review of previous studies on snow Experimental measurements on snow Summary of snow experiments Theoretical studies Confirmation of the theory Discussion Applications Recommendations Summary Literature cited Appendix A. Selected data from Wisotski and Snyder (1966) Appendix B. Pressure data from Livingston (1964)
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  • 51
    Signatur: ZSP-980-70
    In: 2nd Working Meeting "Radioisotope Application and Radiation Processing in Industry", Part 2, 50 to 97
    In: ZfI-Mitteilungen, Nr. 70
    Materialart: Schriftenreihen ausleihbar
    Seiten: 355 Seiten , Illustrationen
    ISSN: 0323-8776
    Serie: ZfI-Mitteilungen 70
    Sprache: Englisch
    Anmerkung: Contents of Part 2 Hecht, K. Gerber, R. Otto: Studies on the drying of paints by means of 14C-labelled compounds K. Wagner, F. Brutschin, I. Ritter, T. Gritsch, H. Zimmermann, H. Borchert: Investigations by the aid of radioisotope methods on the technology of the production of carbon and silicon carbide materials K. Gloe, P. Mühl: Determination of metal extraction process parameters using tracer technique W. Migdał, W. Łada, K. Malec-Czechowska: Studies on liquid-liquid extraction of noble metals using radiotracers L. Petryka, K. Przewłocki: Radiotracer investigations of benefication copper ore in the industrial flotation process Z. Bazaniak, J. Palige: Determination of Cu recovery degree from slags in shaft process by means of radiotracers R. Burek, J .K. Zurawicz: On the optimization of concentration measurements in heterogeneous materials based on β-backscatter measurements B. Heinrich: Analysis of carbon content in crude brown coal by inelastic scattering of neutrons and the method of time correlated associated particles P. Urbańaki, D. Wagner, M. Jankowska, E. Kowalska: Determination of calcium and iron and measurements of ash content in the brown coal H.-W. Thümmel: Some considerations relating to the prediction of the efficiency of radiometric methods for the continuous ash content determination of coal L. Wawrzonek: Monitor of ash content of coal with X-ray source I. Pavlicsek, V. Stenger, A. Veres: Apparatus for gamma activation analysis I. Végvári, I. Juhász: Determination of PbO content of lead-glass samples on the ground of gamma-absorption E. Schöntube, H.-J. Große: Aerosol ionization gas analysis as a monitoring for waste halothane in the atmosphere of operating theatre S. Mothes, P. Popp, G. Oppermann, W.-D. Herberg: Measurement of fluorocarbons with the ECD P. Popp, E. Schöntube, G. Oppermann: The usability of radiation ionization detectors for the determination of N2O concentrations in the air of operating theatres P. Popp, G. Arnold, G. Oppermann: A hydrocarbon-sensitized argon ionization detector for the detection of inorganic compounds R. Szepke, W. Lisieski, J. Harasimczuk: Automatic dust monitor AMIZ G. Vormum: Sealed sources - problems of design, measurement and quality control L. Gąsiorowski: New trends in developments of ratioisotope gauges in Poland G. Brunner: Direct chemical information from special radio tracers as well as from outer X-ray excitation J. Hirling: Experience and future trend in industrial application of nuclear methods in Hungary I. N. Ivanov, O. K. Nikolaenko, Yu. V. Phecktistov, V. L. Chulkin: Use of short-lived nuclides in activation analysis Kl.-P. Rudolph, J. Flachowsky, A. Lange: Trace element determination in semiconducter selenium by neutron activation analysis (NAA) W. Lisieski, J. Mirowicz: Some industrial applications of instruments with neutron sources R. Dybczyński, H. Maleszewaka, S. Sterliński, Z. Szopa, M. Wasek: Some problems in neutron activation determination of gold and silver in ores and concentrates of copper industry L. Jankowski: Cost-benefit aspects of radioisotope application in industry B. Manouchev, T. Boschkova, L. Tsankov, V. Gurev, I. Kojucharov, G. Grozev: On the possibilities of the direct gamma-spectremetry in natural waters P. Morgenstern, D. Müller, W. Riedel: A parallel grid proportional scintillation counter for the X-ray region from 3 to 20 keV with regard to high count rates N. A. Anders, V. S. Isaev, V. I. Filatov, B. E. Kolesnikov, D. Müller, P. Morgenstern, W. Riedel, V. P. Varvaritsa: X-ray fluroescence analyzer of light elements with proportional scintillation counter D. Müller, P. Morgenstern, W. Riedel, W. Warwariza, B. E. Kolesnikow, N. A. Anders, W. J. Filatov: General considerations concerning the use of the X-ray analyzer "RALE" in industry
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  • 52
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-83/9
    In: CRREL Report, 83-9
    Beschreibung / Inhaltsverzeichnis: Recent observations of shore ice pile-up and ride-up along the coast of the Alaska Beaufort Sea are presented. Information is given to show that sea ice movement on shore has overridden steep coastal bluffs and has thrust inland over 150 m, gouging into and pushing up mounds of beach sand, gravel, boulders and peat and, inland, the tundra material. The resulting ice scar morphology was found to remain for tens of years. Onshore ice movements up to 20 m are relatively common, but those over 100 m are very infrequent. Spring is a dangerous time, when sea ice melts away from the shore, allowing ice to move freely. Under this condition, driving stresses of less than 100 kPa can push thick sea ice onto the land.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 59 Seiten , Illustrationen
    Serie: CRREL Report 83-9
    Sprache: Englisch
    Anmerkung: Contents Abstract Preface Introduction Winter 1979-80 observations Winter 1980-81 and summer 1981 observations Winter 1981-82 and summer 1982 observations Old ice ride-up features Discussion Literature cited Appendix A. The boulder rampart and rock littered shore west of Konganevik Pt. Appendix B. Site location maps
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  • 53
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-83/6
    In: CRREL Report, 83-6
    Beschreibung / Inhaltsverzeichnis: During the austral summers of 1976-77 and 1978-79, several ice cores were taken from the McMurdo Ice Shelf brine zone to investigate its thermal, physical and chemical properties. This brine zone consists of a series of super-imposed brine layers (waves) that originate at the seaward edge of the ice shelf and migrate at various rates, depending upon their age and position in the ice shelf. The brine in these layers becomes increasingly concentrated as the waves migrate inland through the permeable ice shelf firn. Chemical analyses of brine samples from the youngest (uppermost) brine wave show that it contains sea salts in normal seawater proportions. Further inland, deeper and older brine layers, though highly saline (S 〉 200 ‰), are severely depleted in SO2-4 with the SO2-4/Na+ ratio being an order of magnitude less than that of normal seawater. Analyses of Na+, K+, Ca2+, Mg2+, SO2-4 and CI-, together with solubility and temperature considerations, show that the sulfate depletion is due to selective precipitation of mirabilite, Na2SO4*10H2O. The location of the inland boundary of brine penetration is closely related to the depth at which the brine en-counters the firn/ice transition. However, a small but measurable migration of brine is still occurring in otherwise impermeable ice; this is attributed to eutectic dissolution of the ice by concentrated brine as it moves into deeper and warmer parts of the McMurdo Ice Shelf.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 16 Seiten , Illustrationen
    Serie: CRREL Report 83-6
    Sprache: Englisch
    Standort: AWI Archiv
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  • 54
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-83/7
    In: CRREL Report, 83-7
    Beschreibung / Inhaltsverzeichnis: Peak power generation with hydropower creates tailwater flow conditions characterized by high and low flows with abrupt transitions between these states. Flows occurring in tailwaters typically form sharp-fronted, large-amplitude waves of relatively short period. An understanding of the mechanics of downstream propagation of these waves is important both for direct application in studies of the tailwater and because of the similarity of these waves to those following a dam break. An analysis of the dynamic equations of open channel flow is used to quantify the relative importance of flow wave convection, diffusion and dispersion in rivers. The relative importance of each process is re­lated to the relative magnitude of terms in the dynamic equations, providing a physical basis for model formulation. A one-dimensional diffusion wave flow routing model, modified for tailwaters, simulates the important physical pro­cesses affecting the flow and is straightforward to apply. The model is based upon a numerical solution of the kine­matic wave equation. The “modified equation,” Hirt, and von Neumann analyses are used to gain insight into the stability and dissipative and dispersive behavior of the numerical solution, and results of these analyses are compared. A set of linear routings is used to demonstrate the dissipative and dispersive behavior predicted by the analyses and to verify the accuracy of an expression that quantifies the numerical diffusion of the model. The analyses provide a basis for selection of numerical parameters for model applications. The capability and accuracy of the model are enhanced when physical wave diffusion is balanced by numerical diffusion in the model. Maintaining the diffusion balance re­quires that the time derivative weighting parameter 0 be variable and in some instances negative. Though some amount of phase error is introduced, negative 0 values have no adverse effect upon model stability. Field studies were con­ducted to demonstrate the benefits of careful model development and analysis, and to verify the diffusion wave model for rapidly varying tailwater flow. The bed slope and roughness characteristics of the field study reaches (below Apalachia and Norris Dams) differ greatly, spanning those of a large number of rivers of practical interest. The accurate simulation of flow in both of these tailwaters attests to the soundness of both the physical basis of the model and the numerical solution technique. The field studies confirm, for the extreme case of rapidly varying flow in a mildly sloped river, that inertia has a negligible effect upon unsteady flow waves at low Froude numbers. Additionally, these studies verify that diffusion of short-period waves in rivers is generally significant.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 41 Seiten , Illustrationen
    Serie: CRREL Report 83-7
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Physical diffusion and dispersion in open channel flow Modeling approach Description of the diffusion wave flow routing model Analysis of the numerical model Modified equation and Hirt analyses of diffusion wave model von Neumann analysis of the diffusion wave model Linear case studies Accuracy considerations of the numerical solution Field studies Apalachia Dam tailwater Norris Dam tailwater Conclusions Literature cited
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  • 55
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-83/5
    In: CRREL Report, 83-5
    Beschreibung / Inhaltsverzeichnis: This report presents the results of dynamic ice-structure interaction model tests conducted at the CRREL Ice Engineering Facility. A flexible, single-pile, bottom-founded offshore structure was simulated by a test pile with about a one-to-ten scale ratio. Urea (instead of sodium chloride) was used as dopant to scale down the ice properties, resulting in good model ice properties. Six ice fields were frozen and 18 tests carried out. In all cases distinctive dynamic ice structure interaction vibrations appeared, from which abundant data were collected. In tests with linear ice velocity sweep, sawtooth-shaped ice force fluctuations occurred first. With increasing velocity the natural modes of the test pile were excited, and shifts from one mode to another occurred. The maximum ice force values appeared mostly with low loading rates, but high forces appeared random'y at high ice velocities. As a general trend, ice force maximums, averages and standard deviations decreased with increasing ice velocities. The aspect ratio effect of the ice force in continuous crushing follows the same dependence as in static loadings. The frequency of observed ice forces is strongly dominated by the natural modes of the structure. Dynamically unstable natural modes tend to make the developing ice force frequencies the same as the natural frequencies. Otherwise the resulting frequency depends directly on structural stiffness and ice velocity and inversely on the ice force range. During vibrations the displacement rates of the structure overcome the velocity of ice, making low loading rates and hence high ice forces possible. During crushing, ice induces both positive and negative damping.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 53 Seiten , Illustrationen
    Serie: CRREL Report 83-5
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Test arrangements Ice properties Crushing patterns Maximum ice force vs velocity Dynamic aspect ratio effect and crushing strength Measured ice force frequencies Calculated ice force frequencies Accelerations, velocities and displacements Damping Ice-induced negative damping Limit cycles Buckling load Conclusions Literature cited
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  • 56
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-83/16
    In: CRREL Report, 83-16
    Beschreibung / Inhaltsverzeichnis: The presence of snow on the ground can impose limitations on the mobility of wheeled and tracked vehicles. Snow depth and density are the two most easily measured snow properties that can be related to mobility over snow. Existing models of snowpack accumulation and ablation processes and models of internal snowpack structure were examined to determine if a model of the snowpack can be developed for use in predicting the snow parameters that affect mobility. Simple models, such as temperature index models, do not provide sufficient snowpack details, and the more detailed models require too many measured inputs. Components of the various models were selected from a basis of a snowpack model for predicting snow properties related to mobility over snow. Methods of obtaining the input data from some components are suggested, and areas where more development is needed are described.
    Materialart: Schriftenreihen ausleihbar
    Seiten: 34 Seiten , Illustrationen
    Serie: CRREL Report 83-16
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Conversion of metric units Introduction Review of existing models Accumulation models Ablation models Using existing models for studying mobility Proposed snowpack model for mobility studies Model components Implementation of the model Developing input data Conclusions Literature cited
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  • 57
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-83/23
    In: CRREL Report, 83-23
    Beschreibung / Inhaltsverzeichnis: The problems associated with measuring stresses in ice are reviewed. Theory and laboratory test results are then presented for a stiff cylindrical sensor made of steel that is designed to measure ice stresses in a biaxial stress field. Loading tests on freshwater and saline ice blocks containing the biaxial ice stress sensor indicate that the sensor has a resolution of 20 kPa and an accuracy of better than 15% under a variety of uniaxial and biaxial loading conditions. Principal stress directions can also be determined within 5 degrees. The biaxial ice stress sensor is not significantly affected by variations in the ice elastic modulus, ice creep or differential thermal expansion between the ice and gauge. The sensor also has a low temperature sensitivity (5 kPa/deg C).
    Materialart: Schriftenreihen ausleihbar
    Seiten: 38 Seiten , Illustrationen
    Serie: CRREL Report 83-23
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Previous work Stress measurements Design considerations Stress sensors Biaxial ice stress sensor Biaxial stress sensor theory Gauge deformation Stresses associated with cylindrical sensors Determination of ice stresses Gauge calibration Evaluation of the biaxial ice stress sensor Temperature sensitivity Biaxial loading test equipment Biaxial loading test results Differential thermal expansion Long-term drift Discussion of test results Conclusions Literature cited
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  • 58
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-83/26
    In: CRREL Report, 83-26
    Beschreibung / Inhaltsverzeichnis: Ice accreted on high-speed rotors operating in supercooled fog can be thrown off by centrifugal force, creating severe unbalance and dangerous projectiles. A simple force balance analysis indicates that the strength of accreted ice and its adhesive strength can be obtained by measuring the thickness of the accretion, the location of the separation, the rotor speed, and the density. Such an analysis was applied to field and laboratory observations of self-shedding events. The results agree reasonably well with other observations.
    Materialart: Schriftenreihen ausleihbar
    Seiten: 13 Seiten , Illustrationen
    Serie: CRREL Report 83-26
    Sprache: Englisch
    Standort: AWI Archiv
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  • 59
    Signatur: MOP 45384/4 / Mitte
    Materialart: Monographie ausleihbar
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
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  • 60
    Signatur: MOP 46593 / Mitte
    Materialart: Monographie ausleihbar
    Seiten: iii, 372 Seiten , Illustrationen
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
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  • 61
    Signatur: MOP 45384/2 / Mitte
    Materialart: Monographie ausleihbar
    Seiten: Getrennte Zählung , Illustrationen
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
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  • 62
    Signatur: 14591
    In: Modern crystallography / Boris K. Vainshtein (ed.-in-chief) ; Vol. 1
    In: Springer series in solid-state sciences ; 15
    Materialart: Monographie ausleihbar
    Seiten: XVII, 399 S. , Ill., graph. Darst.
    ISBN: 3540100520 , 0387100520
    Serie: Modern crystallography / Boris K. Vainshtein (ed.-in-chief) ; Vol. 1
    Sprache: Englisch
    Standort: Kompaktmagazin oben
    Zweigbibliothek: GFZ Bibliothek
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  • 63
    Signatur: MOP 47382 / Mitte
    Materialart: Monographie ausleihbar
    Seiten: 161 Seiten , 30 cm
    Serie: Technical documents in hydrology
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
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  • 64
    Signatur: MOP 47617 / Mitte
    In: Environmental pollution monitoring and research programme, 3
    Materialart: Schriftenreihen ausleihbar
    Seiten: 9, 34 gezählte Seiten, 2 Seiten
    Serie: Environmental pollution monitoring and research programme 3
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 65
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    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-81/10
    In: CRREL Report, 81-10
    Beschreibung / Inhaltsverzeichnis: Abstract: This treatise thoroughly reviews the subjects of density, thermal expansion and compressibility of ice; snow density change attributed to destructive, constructive and melt metamorphism; and the physics of regelation and the effects on penetration rate of both the thermal properties of the wire and stress level. Heat capacity, latent heat of fusion and thermal conductivity of ice and snow over a wide range of temperatures were analyzed with regression techniques. In the case of snow, the effect of density was also evaluated. The contribution of vapor diffusion to heat transfer through snow under both natural and forced convective conditions was assessed. Expressions representing specific and latent heat of sea ice in terms of sea ice salinity and temperature were given. Theoretical models were given that can predict the thermal conductivities of fresh bubbly ice and sea ice in terms of salinity, temperature and fractional air content.
    Materialart: Schriftenreihen ausleihbar
    Seiten: 27 Seiten , Illustrationen
    Serie: CRREL Report 81-10
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Density, thermal expansion and compressibility of ice Density Thermal expansion Compressibility Density changes in snow Compaction Destructive metamorphism Constructive metamorphism Melt metamorphism Regelation Thermal properties of snow and fresh-water ice Heat capacity of snow and ice Latent heat Thermal conductivity of ice Thermal conductivity of snow Effective thermal diffusivity Heat transfer by water vapor diffusion in snow Heat and vapor transfer with forced convection Thermal properties of sea ice Specific heat of sea ice Heat of fusion of sea ice when 0° 〉 θ 〉 -8.2°C Density and thermal conductivity of sea ice Composition and air bubble content of sea ice above -8.2°C Thermal conductivity model for sea ice Thermal diffusivity of sea ice Method of determining thermal diffusivity Summary Literature cited
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  • 66
    Signatur: MOP 46293 / Mitte
    In: United States Antarctic Research Report to SCAR, No. 25
    Materialart: Schriftenreihen ausleihbar
    Serie: United States Antarctic Research Report to SCAR 25
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 67
    Signatur: MOP 46292 / Mitte
    In: United Kingdom Antarctic research report, 1982
    Materialart: Schriftenreihen ausleihbar
    Serie: United Kingdom Antarctic research report 1982
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 68
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    Schriftenreihen ausleihbar
    Geneva : WMO
    Signatur: MOP 45420 / Mitte
    Materialart: Schriftenreihen ausleihbar
    Seiten: Getrennte Zählung , Illustrationen , 28 cm
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 69
    Signatur: 13259/II, 1 ; 13259/II, 2
    Materialart: Monographie ausleihbar
    Seiten: XVIII, 357 Seiten , Illustrationen
    ISBN: 0125251025
    Sprache: Englisch
    Zweigbibliothek: GFZ Bibliothek
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  • 70
    Signatur: AWI Bio-21-94351
    In: Developments in hydrobiology, 29
    Materialart: Monographie ausleihbar
    Seiten: VII, 307 Seiten , Illustrationen
    ISBN: 9061935369
    Serie: Developments in hydrobiology 29
    Sprache: Englisch
    Anmerkung: Contents Preface 1. Gunnar Nygaard: A guiding influence on paleolimnological research / by J. Kristiansen 2. Diatoms as indicators of pH: An historical review / by R.W. Battarbee, J.P. Smol & J. Meriläinen Part one: Taxonomy 3. The genus Melosira from soft-water lakes with special reference to northern Michigan, Wisconsin and Minnesota / by K.E. Camburn & J.C. Kingston 4. A new diatom species, Fragilaria acidobiontica, from acidic lakes in northeastern North America / by D.F. Charles 5. Two forms of Tabellaria binalis (Ehr.) Grun. in two acid lakes in Galloway, Scotland / by R.J. Flower Part two: Extant floras 6. Phytoplankton in selected LaCloche (Ontario) lakes, pH 4.2-7.0, with special reference to algaeas indicators of chemical characteristics / by P.M. Stokes & Y.K. Yung 7. The representation of living diatom communities in deep-water sedimentary diatom assemblages in two Maine (U.S.A.) lakes / by D.M. DeNicola 8. Spatial and temporal variability in periphytic diatom communities: Palaeoecological significance in an acidified lake / by V.J. Jones & R.J. Flower Part three: Paleolimnological applications 9. Relationships between diatom assemblages in lake surface-sediments and limnological characteristics in southern Norway / by D.S. Anderson, R.B. Davis & F. Berge 10. Diatom evidence for neutralization in acid surface mine lakes / by R.B. Brugam & M. Lusk 11. The recent history of a naturally acidic lake (Cone Pond, N.H.) / by J. Ford 12. East african diatoms and water pH / by F. Gasse 13. Acidification of small lakes in Finland documented by sedimentary diatom and chrysophycean remains / by K. Tolonen, M. Liukkonen, R. Harjula & A. Patila 14. Applications of multivariate techniques to infer limnological conditions from diatom assemblages / by P. Huttunen & J. Meriläinen 15. A sedimentary diatom record of severe acidification in Lake Blamissusjon, N. Sweden, through natural soil processes / by I. Renberg 16. Diatom responses to acidification and lime treatment in a clear-water lake: Comparison of two methods of analysis of a diatom stratigraphy / by H. Simola 17. Acidification of four lakes in the Federal Republic of Germany as reflected by diatom assemblages, cladoceran remains and sediment chemistry / by K. Arzet, D. Krause-Dellin & C. Steinberg 18. Late-glacial and Holocene acidity changes in Adirondack (N.Y.) lakes / by D.R. Whitehead, D.F. Charles, S.J. Jackson, S.E. Reed & M.C. Sheehan 19. Chrysophycean microfossils as indicators of lakewater pH / by J.P. Smol Part four: Overview 20. The use of sedimentary remains of siliceous algae for inferring past chemistry of lake water-problems, potential and research needs / by R.B. Davis & J.P. Smol Indices Index of lakes Index of genera Subject index
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  • 71
    facet.materialart.12
    Oxford : Blackwell Scientific Publications
    Dazugehörige Bände
    Signatur: 10.1144/GSL.SP.1981.009.01.01
    In: Special publications / the Geological Society, London, Volume 9
    Materialart: 12
    Seiten: 1 Online-Ressource (VI, 539 Seiten) , Illustrationen
    ISBN: 0632006145
    Serie: Special publications / the Geological Society, London 9
    Sprache: Englisch
    Anmerkung: Table of Contents Introduction N. J. Price and K. R. McClay https://doi.org/10.1144/GSL.SP.1981.009.01.01 What is a Thrust? What is a Nappe? J. G. Dennis, R. A. Price, J. K. Sales, R. Hatcher, A. W. Bally, W. J. Perry, H. P. Laubscher, R. E. Williams, D. Elliott, D. K. Norris, D. W. Hutton, T. Emmett, and K. R. McClay https://doi.org/10.1144/GSL.SP.1981.009.01.02 I. Mechanics of Thrusts and Nappes Thoughts on the tectonics of folded belts A. W. Bally https://doi.org/10.1144/GSL.SP.1981.009.01.03 Pore pressure, discontinuities, isostasy and overthrusts P. E. Gretener https://doi.org/10.1144/GSL.SP.1981.009.01.04 Gravitational gliding in deltas G. Mandl and W. Crans https://doi.org/10.1144/GSL.SP.1981.009.01.05 Thrust sheet deformation at a ramp: summary and extensions of an earlier model D. V. Wiltschko https://doi.org/10.1144/GSL.SP.1981.009.01.06 Deformation and secondary faulting near the leading edge of a thrust fault D. A. Rodgers and W. D. Rizer https://doi.org/10.1144/GSL.SP.1981.009.01.07 Mechanical model of thrust sheet gliding and imbrication G. Mandl and G. K. Shippam https://doi.org/10.1144/GSL.SP.1981.009.01.08 The rock mechanics of thrust and nappe formation S. A. F. Murrell https://doi.org/10.1144/GSL.SP.1981.009.01.09 Subduction and coeval thrust belts, with particular reference to North America A. G. Smith https://doi.org/10.1144/GSL.SP.1981.009.01.10 The role of gravity in orogenic belts H. Ramberg https://doi.org/10.1144/GSL.SP.1981.009.01.11 II. Rock Products of Thrusting Dynamic analysis of a small imbricate thrust and related structures, Front Ranges, Southern Canadian Rocky Mountains J. H. Spang and S. P. Brown https://doi.org/10.1144/GSL.SP.1981.009.01.12 The microfabric of calcite tectonites from the Helvetic Nappes (Swiss Alps) S. M. Schmid, M. Casey, and J. Starkey https://doi.org/10.1144/GSL.SP.1981.009.01.13 Very low grade metamorphism with a reverse gradient induced by an overthrust in Haute-Savoie (France) J. Aprahamian and J.-L. Pairis https://doi.org/10.1144/GSL.SP.1981.009.01.14 Saline horizons acting as thrust planes along the southern margin of the Damara Orogen (Namibia/SW-Africa) H. J. Behr, H. Ahrendt, A. Schmidt, and K. Weber https://doi.org/10.1144/GSL.SP.1981.009.01.15 Sliding and other deformation mechanisms in a glacier of salt, S Iran C. J. Talbot https://doi.org/10.1144/GSL.SP.1981.009.01.16 The Caledonides of northern Norway: relation between preferred orientation of quartz lattice, strain and translation of the nappes A.-M. Boullier and J.-M. Quenardel https://doi.org/10.1144/GSL.SP.1981.009.01.17 Structure and distribution of fault rocks in the Alpine Fault Zone, New Zealand R. H. Sibson, S. H. White, and B. K. Atkinson https://doi.org/10.1144/GSL.SP.1981.009.01.18 Uplift rates and thermal structure in the Alpine Fault Zone and Alpine Schists, Southern Alps, New Zealand C. J. Adams https://doi.org/10.1144/GSL.SP.1981.009.01.19 III. Thrust and Nappe Regimes. A. ‘The Old World’ Caledonides The internal geometry of nappes: criteria for models of emplacement M. A. Cooper https://doi.org/10.1144/GSL.SP.1981.009.01.20 The strain profile above a major thrust fault, Finnmark, N Norway N. J. Milton and G. D. Williams https://doi.org/10.1144/GSL.SP.1981.009.01.21 The Moine Thrust Zone: an overview K. R. McClay and M. P. Coward https://doi.org/10.1144/GSL.SP.1981.009.01.22 Tectonic slides in the Caledonides D. H. W. Hutton https://doi.org/10.1144/GSL.SP.1981.009.01.23 Estimation of the rate and amount of absolute lateral shortening in an orogen using diachronism and strike slipped segments W. E. A. Phillips https://doi.org/10.1144/GSL.SP.1981.009.01.24 Strain within thrust sheets M. P. Coward and J. H. Kim https://doi.org/10.1144/GSL.SP.1981.009.01.25 III. Thrust and Nappe Regimes. A. ‘The Old World’ Alpine Tectonics of the Helvetic Nappes J. G. Ramsay https://doi.org/10.1144/GSL.SP.1981.009.01.26 The 3D propagation of décollement in the Jura H. P. Laubscher https://doi.org/10.1144/GSL.SP.1981.009.01.27 Fold-and-thrust tectonics in the Helvetic Nappes (E Switzerland) O. A. Pfiffner https://doi.org/10.1144/GSL.SP.1981.009.01.28 Some observations on the development of thrust faults in the Ultradauphinois Zone, French Alps A. Beach https://doi.org/10.1144/GSL.SP.1981.009.01.29 Gravity sliding in the Maritime Alps R. H. Graham https://doi.org/10.1144/GSL.SP.1981.009.01.30 III. Thrust and Nappe Regimes. A. ‘The Old World’ Eurasia Sutures, thrusts and nappes in the Variscan Arc of western Europe: plate tectonic implications Ph. Matte and J. P. Burg https://doi.org/10.1144/GSL.SP.1981.009.01.31 Wrench related thrusting along a Mesozoic-Cenozoic continental margin: Antalya Complex, SW Turkey N. H. Woodcock and A. H. F. Robertson https://doi.org/10.1144/GSL.SP.1981.009.01.32 Thrust and strike slip fault interaction along the Chaman transform zone, Pakistan R. D. Lawrence and R. S. Yeats S. H. Khan, A. Farah, and K. A. DeJong https://doi.org/10.1144/GSL.SP.1981.009.01.33 Active thrusting and the evolution of the Zagros fold belt J. A. Jackson and T. J. Fitch D. P. McKenzie https://doi.org/10.1144/GSL.SP.1981.009.01.34 An overview of thrusts and nappes of western Himalaya V. C. Thakur https://doi.org/10.1144/GSL.SP.1981.009.01.35 Ambiguity in interpretation of seismic data from modern convergent margins: an example from the IPOD Japan Trench transect R. von Huene, M. Arthur, and B. Carson https://doi.org/10.1144/GSL.SP.1981.009.01.36 Geometrical problems and implications of large scale over-thrusting in the Banda Arc -Australian margin collision zone M. G. Audley-Charles https://doi.org/10.1144/GSL.SP.1981.009.01.37 Neogene thrust emplacement from a frontal arc in New Guinea J. Milsom https://doi.org/10.1144/GSL.SP.1981.009.01.38 IV. Thrust and Nappe Regimes. B. ‘The New World’ The Americas The Cordilleran foreland thrust and fold belt in the southern Canadian Rocky Mountains R. A. Price https://doi.org/10.1144/GSL.SP.1981.009.01.39 The nature and significance of large ‘blind’ thrusts within the northern Rocky Mountains of Canada R. I. Thompson https://doi.org/10.1144/GSL.SP.1981.009.01.40 Metamorphic complex of SE Canadian Cordillera and relationship to foreland thrusting R. L. Brown https://doi.org/10.1144/GSL.SP.1981.009.01.41 Thrust nappes in the Rocky Mountain Foothills near Mountain Park, Alberta H. A. K. Charlesworth and W. E. Kilby https://doi.org/10.1144/GSL.SP.1981.009.01.42 Deformational styles in two Mesozoic fault zones, western Washington, USA D. S. Cowan and R. B. Miller https://doi.org/10.1144/GSL.SP.1981.009.01.43 Thrusts and nappes in the North American Appalachian Orogen R. D. Hatcher, Jr. https://doi.org/10.1144/GSL.SP.1981.009.01.44 COCORP seismic reflection profiling across thrust faults J. A. Brewer, F. A. Cook, L. D. Brown, J. E. Oliver, S. Kaufman, and D. S. Albaugh https://doi.org/10.1144/GSL.SP.1981.009.01.45 Mechanisms for basement shortening in the Andean foreland fold belt of southern South America Margaret A. Winslow https://doi.org/10.1144/GSL.SP.1981.009.01.46
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  • 72
    facet.materialart.12
    Oxford : Blackwell Scientific Publications
    Dazugehörige Bände
    Signatur: 10.1144/GSL.SP.1983.011.01.01
    In: Special publications / the Geological Society, London, Volume 11
    Beschreibung / Inhaltsverzeichnis: This volume contains papers presented at the Geological Society on March 25th and 26th 1981, plus three additional contributions by researchers who were unable to be present at the meeting. The meeting brought together earth scientists with interests in geomorphology, geochemistry, pedology, sedimentology and applied geology. The multidisciplinary approach to the study of residual deposits is reflected in the 25 chapters of this book, which are arranged in four main groups: Weathering processes (chapters 1-3); Kaolinites, laterites and bauxites (chapters 4-11); Red beds (chapters 12-14); Duricrusts: calcretes, silcretes and gypcretes (chapters 15-25). The last two chapters of the book deal with karst related fluorite-baryte deposits, and Cenozoic pedogenesis and landform develop- ment in south-east England. Richard Crockett, Andrew Goudie and Don Highley provided invaluable suggestions during the planning of the meeting that led to this book. R. C. L. WILSON,Department of Earth Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA.
    Materialart: 12
    Seiten: 1 Online-Ressource (258 Seiten)
    ISBN: 063201072X
    Serie: Special publications / the Geological Society, London 11
    Sprache: Englisch
    Anmerkung: Weathering Processes Lichen weathering of minerals: implications for pedogenesis M. J. Wilson D. Jones https://doi.org/10.1144/GSL.SP.1983.011.01.01 Porewater reactions in the unsaturated zone with special reference to groundwater quality in England D. A. Spears https://doi.org/10.1144/GSL.SP.1983.011.01.02 A review of experimental weathering of basic igneous rocks David C. Cawsey and Paul Mellon https://doi.org/10.1144/GSL.SP.1983.011.01.03 Kaolinites, Laterites and Bauxites Kaolinisation and the formation of silicified wood on late Jurassic Gondwana surfaces H. Wopfner https://doi.org/10.1144/GSL.SP.1983.011.01.04 Kaolinitic weathering profiles in Brittany: genesis and economic importance J. Esteoule-Choux https://doi.org/10.1144/GSL.SP.1983.011.01.05 The origin and occurrence of Devon Ball Clays A. Vincent https://doi.org/10.1144/GSL.SP.1983.011.01.06 The Ayrshire Bauxitic Clay: an allochthonous deposit? S. K. Monro F. C. Loughnan and M. C. Walker https://doi.org/10.1144/GSL.SP.1983.011.01.07 Base metal concentrations in kaolinised and silicified lavas of the Central Burma volcanics T. R. Marshall B. J. Amos D. Stephenson https://doi.org/10.1144/GSL.SP.1983.011.01.08 A low level laterite profile from Uganda and its relevance to the question of parent material influence on the chemical composition of laterites M. J. McFarlane https://doi.org/10.1144/GSL.SP.1983.011.01.09 Palaeoenvironment of lateritic bauxites with vertical and lateral differentiation Ida Valeton https://doi.org/10.1144/GSL.SP.1983.011.01.10 Geochemistry of a nickeliferous laterite profile, Liberdade, Brazil J. Esson https://doi.org/10.1144/GSL.SP.1983.011.01.11 Red Beds Reddening of tropical coastal dune sands R. Gardner https://doi.org/10.1144/GSL.SP.1983.011.01.12 Post-depositional reddening of late Quaternary coastal dune sands, north-eastern Australia K. Pye https://doi.org/10.1144/GSL.SP.1983.011.01.13 Origin of red beds in a moist tropical climate (Etruria Formation, Upper Carboniferous, UK) B. M. Besly P. Turner https://doi.org/10.1144/GSL.SP.1983.011.01.14 Duricrusts: Calcretes, Silcretes and Gypcretes Environment of silcrete formation: a comparison of examples from Australia and the Cologne Embayment, West Germany H. Wopfner https://doi.org/10.1144/GSL.SP.1983.011.01.15 Silcrete in Western Australia: geomorphological settings, textures, structures, and their genetic implications W. J. E. van de Graaff https://doi.org/10.1144/GSL.SP.1983.011.01.16 Geochemistry of weathering profile silcretes, southern Cape Province, South Africa M. A. Summerfield https://doi.org/10.1144/GSL.SP.1983.011.01.17 Pliocene channel calcrete and suspenparallel drainage in West Texas and New Mexico C. C. Reeves, Jr https://doi.org/10.1144/GSL.SP.1983.011.01.18 Concentration of uranium and vanadium in calcretes and gypcretes Donald Carlisle https://doi.org/10.1144/GSL.SP.1983.011.01.19 Ancient duricrusts and related rocks in perspective: a contribution from the Old Red Sandstone John Parnell https://doi.org/10.1144/GSL.SP.1983.011.01.20 A process-response model for the formation of pedogenic calcretes Colin F. Klappa https://doi.org/10.1144/GSL.SP.1983.011.01.21 Stable isotope abundances in calcretes A. S. Talma F. Netterberg https://doi.org/10.1144/GSL.SP.1983.011.01.22 A Geotechnical classification of calcretes and other pedocretes F. Netterberg J. H. Caiger https://doi.org/10.1144/GSL.SP.1983.011.01.23 Karstic residual fluorite-baryte deposits at two localities in Derbyshire R. P. Shaw https://doi.org/10.1144/GSL.SP.1983.011.01.24 Cenozoic pedogenesis and landform development in south-east England John A. Catt https://doi.org/10.1144/GSL.SP.1983.011.01.25
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  • 73
    facet.materialart.
    Unbekannt
    Roma : Consiglio Nazionale delle Ricerche Progetto Finalizzato Geodinamic
    Signatur: K 95.0025
    Sprache: Englisch
    Zweigbibliothek: GFZ Bibliothek
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  • 74
    Signatur: AWI G2-18-91716
    Materialart: Monographie ausleihbar
    Seiten: 134 S , Ill., graph. darst , 24 cm
    Sprache: Englisch
    Anmerkung: 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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  • 75
    Monographie ausleihbar
    Monographie ausleihbar
    Bonn : Federal Republic of Germany, Press and Public Relations Department
    Signatur: AWI P6-18-91970
    Materialart: Monographie ausleihbar
    Seiten: iv, 169 Seiten
    Sprache: Englisch
    Anmerkung: CONTENTS: Introduction. - International co-operation. - Intergovernmental co-operation. - Non-governmental co-operation. - I. Scientific Programme. - 1. Astronomy. - 2. Biological Sciences. - 2.1 The marine ecosystem and its living resources. - 2.1.1 Food resources, phytoplankton production and zooplankton. - 2.1.2 The role of the benthos. - 2.1.3 The role of micro-organisms. - 2.1.4 Distribution and incidence of seals in the pack-ice of the Weddell Sea. - 2.1.5 Distribution and life history of fishes. - 2.1.6 Large-scaie distribution and drift of krill. - 2.1.7 Composition and behaviour of krill shoals. - 2.1.8 Preservation and processing of krill. - 2.2 The adaptation of antarctic marine organisms to their environment. - 2.2.1 Experiments and marine studies on .the ecophysiology of krill. - 2.2.2 Temperature regulation and food requirements of warm-blooded antarctic animals. - 2.2.3 Growth, digestive system and food economy of antarctic fishes. - 2.2.4 Freezing resistance of sea animals. - 2.2.5 Taxonomy of antarctic marine organisms. - 2.3 Terrestrial biology in Antarctica. - 2.3.1 Temperature adjustments in the reproductive biology of antarctic birds. - 2.3.2 Biochemical bases of growth processes in poikilothermic organisms at very low temperatures. - 2.3.3 Nutritional biology of poikilothermic herbivora. - 2.3.4 Study of lichens, fungi and bacteria in Antarctica and on offshore islands. - 2.3.5 Photosynthesis and heterotrophic life cycle of plants at very low temperatures. - 2.4 Environmental protection in Antarctica. - 2.5 Human biology and medicine in polar regions. - 3. Geodesy, Cartography and Remote Sensing. - 3.1 Satellite geodesy. - 3.2 Doppler satellite positioning. - 3.3 Geodetic mapping of ice-free areas. - 3.4 Remote-sensing by satellite. - 4. Geology and Geophysics. - 4.1 Study of drift processes as a contribution to the geological history of Antarctica. - 4.1.1 Study of magnetic structures by means of aeromagnetic photography. - 4.1.2 Paleomagnetic studies of drift evolution. - 4.1.3 Micro-earthquakes as indicators of tectonic activity. - 4.1.4 Earth tides and natural oscillations of the earth. - 4.2 Studies of the structure of crust and mantle. - 4.2.1 Structure of the basement complex of the transantarctic mountain chain in the area east of the Filchner Ice Shelf. - 4.2.2 Structure of the basement of the Weddell Sea, the Filchner/Ronne Ice Shelf, and the peripheral area. - 4.2.3 Oldest and highly metamorphous rocks of the East Antarctic. - 4.3 Stratigraphy, tectonics and magmatism in the mobile areas. - 4.3.1 Mobile fringe areas of the East Antarctic. - 4.3.2 Paleozoic and mesozoic mountains(Beacon upper group) in the transantarctic mountains. - 4.3.3 Early paleozoic to cainozoic orogenes in the area around the Filchner/Ronne Ice Shelf. - 4.4 Study of exogenous processes under extremely cold conditions. - 4.4.1 Glacial geology and geomorphology. - 4.4.2 Weathering and detrital formation. - 4.5 Geoscientific marine research. - 5. Glaciology. - 5.1 Volume and dynamics of the Filchner/Ronne Ice Shelf. - 5.2 Determining the extent and thickness of the ice and its temporal variation in the Filchner/Ronne Ice Shelf sector and peripheral areas. - 5.3 Determining the composition and inner structure of the Filchner/Ronne Ice Shelf on the basis of geophysical surface measurements. - 5.4 Studies of the dynamics of the pack-ice in the Weddell Gyre. - 5.5 Physical characteristics of ocean ice. - 5.6 Glaciological drillings. - 5.7 Chemical composition and accumulation genesis of antarctic background aerosol; global transport of trace gases and aerosols. - 5.8 Study of the elastic and rheological characteristics of ice, its heat conductability and texture affected by deformation. - 6. Upper Atmosphere and Extraterrestrial Physics. - 6.1 Investigation of whistlers and VLF radio emissions (chorus, hiss, etc) at conjugated points. - 6.2 Study of terresterial magnetic pulsations at conjugated points. - 6.3 Study of atmospherics to obtain more precise data on worldwide thunderstorms. - 6.4 Measurements of the aero-electric field. - 6.5 Balloon-based study of the ionosphere in the light of Mg t resonance lines. - 6.6 Measurement of the vertical distribution of ozone, steam and aerosol up to an altitude of 30 km. - 6.7 Measurements of emission in the infrared 9.6 µ ozone band from the ground. - 6.8 Other projects which may be carried out simultaneously with the above or later. - 6.9 Proposed basic terrestrial magnetic equipment for the Antarctic Station. - 6.10 Meteorite search expedition. - 6.11 Study of micrometeorites and cosmic dust. - 7. Meteorology and Oceanography. - 7.1 Meteorology. - 7.1.1 Atmospheric boundary stratum. - 7.1.2 Study of stratospheric circulation. - 7.1.3 Measurement of trace gases over long periods. - 7.1.4 Other research projects. - 7.1.5 Weather service observations and consultations. - 7.1.6 Basic meteorological equipment for the Antarctic Station. - 7.2 Physical oceanography. - 7.2.1 Formation and extent of bottom water in the Atlantic sector of the circumantarctic ocean. - 7.2.2 Numeric simulation of the vertical flows of material, energy and impulses. - 7 2.3 Time scales of transportation in deep water with the aid of radioactive trace elements. - 7.2.4 Detection of heavy metals in the Antarctic Ocean. - 7.2.5 Fishery oceanography in circumantarctic waters. - 7.2.6 Other research projects. - 8. Engineering Sciences. - 8.1 Shipbuilding technology. - 8.1.1 Measuring and testing programme regarding the performance of vessels in ice and technical developments in the construction of ice-going vessels. - 8.2 Iceberg location and navigation. - 8.2.1 Iceberg location. - 8.2.2 Development of precision positioning systems (also for dynamic positioning) to ensure noninterference with signals transmitted through ice and water masses of different thicknesses. - 8.3 Construction techniques. - 8.4 Exploration techniques. - 8.5 Other topics. - The Antarctic Research Station. - The Polar Research and Supply Ship. - The Polar Research Institute. - Institutions contributing to the Programme.
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  • 76
    Signatur: ZSP-201-86/11
    In: CRREL Report, 86-11
    Beschreibung / Inhaltsverzeichnis: This initial study of the ice-covered Tanana River, near Fairbanks, Alaska, attempted to 1) establish field methods for systematic and repetitive quantitative analyses of an ice-covered river's regime, 2) evaluate the instruments and equipment for sampling, and 3) obtain the initial data of a long-term study of ice cover effects on the morphology, hydraulics and sediment transport of a braided river. A methodology was established, and detailed measurements and samplings, including profiling by geophysical techniques, were conducted along cross sections of the river. A small, portable rotary drill rig equipped with a 356-mm (14-in.) ice auger was used to cut large diameter holes in the ice cover for through-the-ice measurements. Portable heat sources and a heated shelter were required to continuously thaw and dry equipment for the repetitive measurements. Measurements included ice cover thickness, water level, water depth, temperature, flow velocity, suspended load and bed load, frazil ice distribution and bed material composition. Remotely gathered data included apparent resistivity and subsurface radar profiling. The various techniques, sampling gear and problems encountered during use in the subfreezing cold are described in detail in this report.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 49 Seiten , Illustrationen
    Serie: CRREL Report 86-11
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Study objectives and field locale Study site Equipment Vehicles Drilling equipment Sampling equipment Geophysical equipment Shelter and icing control Surveying equipment Miscellaneous equipment Field techniques and methodology Logistics Drilling procedures Data collection Geophysical analyses Experiences summary Morphology, transport and hydraulic data Mid-winter physical characteristics Hydraulic characteristics Sediment transport Late winter physical characteristics Seasonal morphology Geophysical data interpretation Spatial morphology Frazil ice characteristics Discussion and conclusions Recommendations Equipment Research Literature cited
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  • 77
    Signatur: ZSP-201-86/18
    In: CRREL Report, 86-18
    Beschreibung / Inhaltsverzeichnis: 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.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 52 Seiten , Illustrationen
    Serie: CRREL Report 86-18
    Sprache: Englisch
    Anmerkung: 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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  • 78
    Monographie ausleihbar
    Monographie ausleihbar
    [Erscheinungsort nicht ermittelbar] : [Verlag nicht ermittelbar]
    Signatur: AWI P2-19-92186
    Materialart: Monographie ausleihbar
    Seiten: 23 Seiten
    Sprache: Englisch
    Standort: AWI Lesesaal
    Zweigbibliothek: AWI Bibliothek
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  • 79
    Monographie ausleihbar
    Monographie ausleihbar
    [Erscheinungsort nicht ermittelbar] : Department of Science and Technology, Antarctic Division Australia
    Dazugehörige Bände
    Signatur: AWI P2-86-0256
    In: Antarctic Telecommunications Guidance Manual, Volume 1
    Materialart: Monographie ausleihbar
    Seiten: Diverse Seitenangaben (ca. 50 Seiten)
    Sprache: Englisch
    Anmerkung: TABLE OF CONTENTS: Distribution List. - List of acronyms and abbreviations used. - Record of Amendments. - Foreword to 1st Edition. - Foreword to 2nd Edition. - HISTORY AND DEVELOPMENTS OF ANTARCTIC COMMUNICATIONS. - CONSIDERATION OF TELECOMMUNICATIONS BY SCAR AND ANTARCTIC TREATY CONSULTATIVE PARTIES. - OPERATION OF INDIVIDUAL NATIONS' NETWORKS. - Australia's Antarctic Communications. - Japan's Antarctic communications. - UK Antarctic communications. - US Antarctic communications. - ANTARCTIC TREATY RESOLUTIONS ON ANTARCTIC COMMUNICATIONS. - WMO RESOLUTIONS AND PRINCIPLES ON ANTARCTIC COMMUNICATIONS. - Introduction. - Engineering principles of the GTS. - Functions and responsibilities of Meteorological Telecommunications Centres. - Characteristics of the networks of the GTS. - Operational principles of the GTS. - The transmission of meteorological data an the GTS. - Collection and transmission of meteorological data. - Data processing. - Telecommunications system. - Weather reporting by traverse parties. - Automatic weather station in the Antarctic. - AIREP reports. - Mobile ship stations. - OTHER RELEVANT RECOMMENDATIONS AND RESOLUTIONS. - APPENDIXES. - APPENDIX I. - Manual an the Global Data Processing System, Regional Aspects, the Antarctic. - APPENDIX II. - Network of CLIMAT and CLIMAT TEMP reporting stations in the Antarctic. - APPENDIX III. - Results of the monitoring of Antarctic data reception carried out during the period 12-15 March 1982. - APPENDIX IV. - Existing links for the daily international exchange of meteorological data within the Antarctic. - APPENDIX V. - Principal routes by which Antarctic meteorological data enters the GTS. - APPENDIX VI. - List of Antarctic stations and the routing of their meteorological data to the GTS.
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  • 80
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-83/32
    In: CRREL Report, 83-32
    Beschreibung / Inhaltsverzeichnis: Ice forces on a bridge pier in the Ottauquechee River, in Quechee, Vermont, were measured by installing fourpanels-each capable of measuring forces in the normal and tangential direction - on both sides of a vertical V-shaped pier nose. The measured forces are presented for a short period during an ice run. After the ice run, the thickness and sizes of the ice floes were measured and the compressive strength of the ice was determined in the laboratory from the ice samples collected along the river banks. The water level measurements made at several locations along theriver are also presented for the period of the ice run.
    Materialart: Schriftenreihen ausleihbar
    Seiten: ii, 8 Seiten , Illustrationen
    Serie: CRREL Report 83-32
    Sprache: Englisch
    Standort: AWI Archiv
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  • 81
    Signatur: MOP 45287 / Mitte
    Materialart: Zeitschrift ausleihbar
    Seiten: Seiten 87-222
    ISSN: 0001-513x , 0541-9425
    Serie: Acta Agronomica Academiae Scientiarum Hungaricae 30
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 82
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Helsinki : Department of Meteorology
    Dazugehörige Bände
    Signatur: MOP Per 781(26)
    In: Report / Department of Meteorology, 26
    Materialart: Schriftenreihen ausleihbar
    Seiten: 41 Seiten
    Serie: Report / Department of Meteorology 26
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
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  • 83
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-86/17
    In: CRREL Report, 86-17
    Beschreibung / Inhaltsverzeichnis: 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.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 52 Seiten , Illustrationen
    Serie: CRREL Report 86-17
    Sprache: Englisch
    Anmerkung: 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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  • 84
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-86/14
    In: CRREL Report, 86-14
    Beschreibung / Inhaltsverzeichnis: 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.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 56 Seiten , Illustrationen
    Serie: CRREL Report 86-14
    Sprache: Englisch
    Anmerkung: 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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  • 85
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-83/2
    In: CRREL Report, 83-2
    Beschreibung / Inhaltsverzeichnis: A numerical model of rime ice accretion on an arbitrary two-dimensional airfoil is presented. The physics of the model are described and results are presented that demonstrate, by comparison with other theoretical data and experimental data, that the model predictions are believable. Results are also presented that illustrate the capability of the model to handle time-dependent rime ice accretion, taking into account the feedback between the ice accretion and the airflow and droplet trajectory fields.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 81 Seiten , Illustrationen
    Serie: CRREL Report 83-2
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Methodology Potential flow around an arbitrary airfoil Incompressible velocity field Droplet trajectory equation Computational procedure for trajectories Determining the point of impact Calculation of collision efficiencies Accreting an ice layer Determining the accuracy of the flow field Determining the accuracy of the trajectories Results and discussion Comparing results with and without the history term Collision efficiency of NACA 0015 airfoil at 8° attack angle Time-dependent accretion on NACA 0015 airfoil at 8° attack angle Time-dependent accretion on NACA 0015 airfoil at 0° attack angle Conclusions and recommendations Literature cited Appendix A : Sample input Appendix B: Sample output Appendix C : Program listing
    Standort: AWI Archiv
    Zweigbibliothek: AWI Bibliothek
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  • 86
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-83/1
    In: CRREL Report, 83-1
    Beschreibung / Inhaltsverzeichnis: Roof snow load case studies gathered throughout the United States over a three-year period are analyzed. The objective of the analysis is to determine a relationship between the snow load on the ground and the corresponding uniform snow load on flat and sloped roofs. The main parameters considered are the thermal characteristics of the roof, the roof slope and the exposure of the structure. Exposure has the strongest effect on the ratio of ground to roof snow loads. Comparisons are made with existing and proposed building codes and standards.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 47 Seiten , Illustrationen
    Serie: CRREL Report 83-1
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Metric conversion table Introduction Data base Conversion factor Ground load effects Exposure effects Thermal effects Slope effects Expected value relationship Comparison with existing codes and standards Comparison with relationships proposed in new ANSI standard Summary and conclusions Literature cited Appendix A. Roof snow load case history reports Appendix B. Roofs in the snow load case study data base Appendix C. Ground and roof snow load data Appendix D. Conversion factors from the 1982 ANSI standard
    Standort: AWI Archiv
    Zweigbibliothek: AWI Bibliothek
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  • 87
    Monographie ausleihbar
    Monographie ausleihbar
    Washington, D.C. : Mineralogical Society of America
    Dazugehörige Bände
    Signatur: 11/M 19.92807
    In: Reviews in mineralogy, 3
    Materialart: Monographie ausleihbar
    Seiten: viii, L1-L88; R1-R24, Hg1-Hg100, EG1-EG72, SH1-SH17, Hg101-Hg300 , Illustrationen, Diagramme
    Ausgabe: second printing
    ISBN: 0-939950-03-0
    Serie: Reviews in mineralogy 3
    Sprache: Englisch
    Standort: Lesesaal
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 88
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-83/30
    In: CRREL Report, 83-30
    Beschreibung / Inhaltsverzeichnis: Ice sheets are formed and retained in several ways in nature, and an understanding of these factors is needed before most structures can be successfully applied. Many ice sheet retention structures float and are somewhat flexible; others are fixed and rigid or semirigid. An example of the former is the Lake Erie ice boom and of the latter, the Montreal ice control structure. Ice sheet retention technology is changing. The use of timber cribs is gradually but not totally giving way to sheet steel pilings and concrete cells. New structures and applications are being tried but with caution. Ice-hydraulic analyses are helpful in predicting the effects of structures and channel modifications on ice cover formation and retention. Often, varying the flow rate in a particular system at the proper time will make the difference between whether a structure will or will not retain ice. The structure, however, invariably adds reliability to the sheet ice retention process.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 39 Seiten , Illustrationen , 1 Beilage
    Serie: CRREL Report 83-30
    Sprache: Englisch
    Anmerkung: Contents Abstract Preface Introduction Natural ice sheets Choosing an ice control structure Flexible structures Ice booms Frazil collector lines Fence booms Rigid or semirigid structures Pier-mounted booms Stone groins Artificial islands Removable gravity structures Timber cribs Weirs Pilings and dolphins Structures built for other purposes Hydroelectric dams Wicket dams Light piers and towers Bridge piers Breakwaters Ice control not using Structures Channel improvements Ice sheet tying Ice sheet bridges Conclusions Literature cited Appendix A: Ice control structure
    Standort: AWI Archiv
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  • 89
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-83/31
    In: CRREL Report, 83-31
    Beschreibung / Inhaltsverzeichnis: A mathematical model is described that is used to determine the maximum ice conveyance capacity of a river channel. Based upon this model, computer programs were developed that enable the ice discharge to be calculated for steady-state flow conditions. For rivers that have uniform flow, the maximum ice-conveying capacity can be described with a simple function expressed in terms of the size of the ice fragments, channel geometry, and the flow of water in the river. For nonuniform flows, the computer program determines the elevation profile of the surface layer in addition to other flow characteristics, such as the velocity and surface concentration of the ice fragments. The location along this surface profile where the ice conveyance capacity becomes less than the upstream supply is determined and is considered to be the position where a surface ice jam or ice bridge will be formed.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 21 Seiten , Illustrationen
    Serie: CRREL Report 83-31
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Constitutive relationships Equations of motion Uniform flow Nonuniform flow Ice transport: Uniform flow Symmetric channel Asymmetric channel Ice transport: Nonuniform flow Further considerations Basis for model improvement Conclusions Literature cited
    Standort: AWI Archiv
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  • 90
    Monographie ausleihbar
    Monographie ausleihbar
    Silver Spring : Central Pacific Hurricane Center
    Signatur: MOP 45480
    Materialart: Monographie ausleihbar
    Seiten: V, 137 Seiten
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 91
    Monographie ausleihbar
    Monographie ausleihbar
    Washington, D.C. : National Advisory Committee on Oceans and Atmosphere
    Signatur: MOP 45479 / Mitte
    Materialart: Monographie ausleihbar
    Seiten: II, 28 Seiten
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 92
    Signatur: MOP 45321 / Mitte
    In: Antarctic research activities of the German Democratic Republic
    Materialart: Monographie ausleihbar
    Seiten: 15 Seiten
    Serie: Antarctic research activities of the German Democratic Republic : report to SCAR No 2
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 93
    Signatur: MOP 45321 / Mitte
    In: Antarctic research activities of the German Democratic Republic
    Materialart: Monographie ausleihbar
    Serie: Antarctic research activities of the German Democratic Republic : report to SCAR No 4
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 94
    Monographie ausleihbar
    Monographie ausleihbar
    Washington, D.C. : Mineralogical Society of America
    Dazugehörige Bände
    Signatur: 11/M 19.92815
    In: Reviews in mineralogy, 1
    Materialart: Monographie ausleihbar
    Seiten: vi, diverse Seitenangaben , Illustrationen, Diagramme
    Ausgabe: fourth printing
    ISBN: 0-939950-01-4
    Serie: Reviews in mineralogy 1
    Sprache: Englisch
    Standort: Lesesaal
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 95
    Monographie ausleihbar
    Monographie ausleihbar
    Washington, D.C. : Mineralogical Society of America
    Dazugehörige Bände
    Signatur: 11/M 19.92818
    In: Reviews in mineralogy, 20
    Materialart: Monographie ausleihbar
    Seiten: xi, 369 Seiten , Illustrationen, Diagramme
    ISBN: 0-939950-24-3
    Serie: Reviews in mineralogy 20
    Sprache: Englisch
    Standort: Lesesaal
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 96
    Signatur: MOP 45206 / Mitte
    In: Daily Global Analyses
    Materialart: Monographie ausleihbar
    Seiten: 5, 368 Seiten , graphische Darstellungen
    Serie: Daily Global Analyses Part 1
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 97
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Geneva : Secretariat of the World Meteorological Organization
    Dazugehörige Bände
    Signatur: MOP 46028/1985 / Mitte
    In: World weather watch : Consolidated report on the voluntary co-operation programme including projects approved for circulation, 1985
    Materialart: Schriftenreihen ausleihbar
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 98
    Monographie ausleihbar
    Monographie ausleihbar
    Moscow : Progress Publishers
    Signatur: MOP 47047 / Mitte
    Materialart: Monographie ausleihbar
    Seiten: 343 Seiten , Illustrationen
    Originaltitel: Poljanye dnevniki 〈engl.〉
    Sprache: Englisch
    Anmerkung: Aus dem Russischen übersetzt
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 99
    Signatur: MOP 46037 / Mitte
    Materialart: Monographie ausleihbar
    Seiten: 172 Seiten , Illustrationen , 21 cm
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 100
    Signatur: MOP 45562 / Mitte
    Materialart: Monographie ausleihbar
    Seiten: 63 Seiten , 30 cm
    Ausgabe: revised
    Sprache: Englisch
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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