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  • English  (1,920)
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  • 1975-1979  (1,925)
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  • 1
    Monograph available for loan
    Monograph available for loan
    Wrocław [u.a.] : Zakł. Nar. im. Ossolińskich
    Associated volumes
    Call number: MOP Per 116(113)
    In: Prace geograficzne
    Type of Medium: Monograph available for loan
    Pages: 112 S. : graph. Darst.
    Series Statement: Prace geograficzne 113
    Language: Polish
    Location: MOP - must be ordered
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  • 2
    Monograph available for loan
    Monograph available for loan
    New York [u.a.] : Wiley
    Call number: M 94.0290
    Type of Medium: Monograph available for loan
    Pages: xviii, 571 S.
    ISBN: 0471401579
    Classification:
    Tectonics
    Language: English
    Location: Upper compact magazine
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  • 3
    Monograph available for loan
    Monograph available for loan
    Orsay, France : Les editions de physique
    Call number: M 94.0516
    Type of Medium: Monograph available for loan
    Pages: VIII, 705 S.
    ISBN: 2902731167
    Classification:
    C.3.8.
    Language: English
    Location: Upper compact magazine
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  • 4
    Monograph available for loan
    Monograph available for loan
    Moskva : Izdatel'stvo "Planeta"
    Call number: AWI P7-83-0402
    Description / Table of Contents: Arktis und Antarktis - diese beiden Begriffe bringen wir sogleich mit den Namen berühmter Entdecker in Zusammenhang. Die Arktis wird heute häufig als ,,warme Arktis" bezeichnet, denn sie ist zum Teil bewohnt, hier wird Erz und Erdgas gefördert, wird Holz geschlagen, werden Fische gefangen. Auch ,,nahe Arktis" wird sie genannt, denn Schiffskonvois ziehen auf dem Nördlichen Seeweg dahin, und mit dem Flugzeug ist jeder Punkt der Arktis das ganze Jahr hindurch erreichbar. Doch wie sehr der Mensch in den Polargebiefen auch heimisch werden und wie man diese Gebiete auch immer nennen mag, das Leben und die Arbeit fern von der ,,häuslichen Heimat" ist stets schwierig und riskant, erfordert stets großen Mut. Dieses Buch schildert nur einzelne Episoden aus der Entdeckungsgeschichte und dem Leben der beiden Pole unserer Erde, berichtet nur kurz von den kühnen Menschen, die in die Polargebiete vorgedrungen sind und dort arbeiten. Nach der Arktis und der Antarktis führt uns der Fotojournalist Gennadi Kopossow.
    Description / Table of Contents: Arctica and Antarctica, two words which have become associated with the exploration of new lands. Now people refer to parts of Arctica as the Warm Arctica, having in mind its inhabited regions where ores, gas, timber and fish are obtained. There is also the Near Arctlca, where caravans of ships safely sail the Northern Sea Route, and, with the help of aircraft, any part of which is accessible the year round. However, much as the people settled these polar regions, whatever they call them, living and working far from mainland is accompanied by risk, courage and hardships. This book gives only a few pages from the history of the two poles of the planet, a few brief sketches of the courageous men who live and work in these regions, merely separate episodes seen and recorded by the press photographer Gennady Koposov in the Arctic and Antarctic.
    Description / Table of Contents: Арктика и Антарктида. Эти слова стали символом мужества и отваги первооткрывателей, осваивающих суровые полюсы Земли. Сейчас говорят про Арктику — "Теплая Арктика", имея в виду ее обжитые районы, где люди добывают руду и газ, лес и рыбу. Говорят, "Близкая Арктика", видя, как караваны судов уверенно идут по Северному морскому пути и как в любое время года на любой ее участок прилетают самолеты полярной авиации. Антарктида. Природа наделила ее чертами мужественными и властными. Это "жестокий" край, и все же метеорологи, аэрологи, геофизики, биологи, медики, научные сотрудники десятков других специальностей стремятся в эту суровую страну. Однако как бы не обжили люди полярные районы планеты, какими эпитетами не называли их, жизнь и работа "вдали от Большой земли" сопровождается там трудностями и риском. Эта книга — лишь отдельные страницы из истории открытий и жизни двух полюсов планеты, короткие рассказы об отважных людях, обживающих полярные земли, и отдельные фотоочерки, запечатленные одним из ведущих фотокорреспондентов журнала "Огонек" Геннадием Колосовым в Арктике и Антарктиде. Творчество Колосова неразрывно связано с Арктикой и Антарктидой, с завидным постоянством возвращается он в полюбившиеся ему полярные районы, привозит из командировки все новые и новые фотоработы. Результатом этих поездок и явилась настоящая книга.
    Type of Medium: Monograph available for loan
    Pages: [200 Seiten] , Illustrationen
    Language: Russian , English , German
    Note: Inhaltsverzeichnis = Contents = Soderžanie Die Flagge der Heimat = The flag of the motherland = Flag rodiny Arktis = Arctic = Arktika Die Drift geht weiter = Drift-ice research continues = Drejf prodolžaetsja Eisbezwinger = Ice fighters = Ledovye bojcy Auf fernen Inseln = On distant islands = Na dalekich ostrovach Antarktis = Antarctic = Antarktida Der sechste Erdteil = The sixth continent = Šestoj kontinent Polarflieger = Polar region pilots = Poljarnye letčiki Der Kältepol = The pole of cold = Poljus choloda Spuren im Schnee = Tracks on the snow = Sledy na snegu , Text in russischer, englischer und deutscher Sprache
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  • 5
    Call number: AWI Bio-89-0001
    Type of Medium: Monograph available for loan
    Pages: XLIV, 1252 S. : Ill. ; 25 cm
    ISBN: 0872010007
    Language: English , French
    Note: Contents: Preface / G. A. Llano. - Welcoming Remarks / W. S. Benninghoff. - The Third Symposium in Historical Perspective / G. A. Knox. - Sir George E. R. Deacon: An Appreciation / K. J. Bertrand. - The Southern Ocean: History of Exploration / Sir George E. R. Deacon. - The Symposium. - Part I: The Structure and Function of Antarctic Marine Phytoplankton Ecosystems. - The Antarctic Marine Ecosystem / Joel W. Hedgpeth. - Primary Production and the Factors Controlling Phytoplankton Growth in the Southern Ocean / O. Holm-Hansen, S. Z. El-Sayed, G. A. Franceschini, and R. L. Cuhel. - Phytoplankton Biomass and Productivity in the Subtropical Convergence Area and Shelves of the Western Indian Subantarctic Islands / Jacqueline Plancke. - Sea Ice Habitats of Signy Island (South Orkneys) and Their Primary Productivity / Terence M. Whitaker. - Dissolved Oxygen and pH Increases by Primary Production in the Surface Water of Arthur Harbor, Antarctica, 1970-1971 / S. V. Shabica, J. W. Hedgpeth, and P. K. Park. - Heterotrophic Activity of Microorganisms in Antarctic Waters / R. Y. Morita, R. P. Griffiths, and S. S. Hayasaka. - Vitamins in the South Polar Seas: Distribution and Significance of Dissolved and Particulate Vitamin B12, Thiamine, and Biotin in the Southern Indian Ocean / A. F. Caducei and R. L. Cuhel. - Discussion. - Part II: The Structure and Function of Antarctic Marine Benthic Ecosystems. - Adaptations within the Antarctic Marine Benthic Ecosystem / Patrick M. Arnaud. - Bacterial Sulfur and Nitrogen Cycles in Sedimentary Deposits of "Fjord Bossière" (Kerguelen Archipelago) / D. Delille. - Antarctic Soft-Bottom, Macrobenthic Community Adaptations to a Cold, Stable, Highly Productive, Glacially Affected Environment / Michael D. Richardson and Joel W. Hedgpeth. - Ecological Adaptations by Antarctic Poikilotherms to the Polar Marine Environment / Martin G. White. - Scoloplos marginatus mcleani: Life Cycle and Adaptations to the Antarctic Benthic Environment / P. Hardy. - Benthic Bionomy of the Continental Shelf of the Kerguelen Archipelago, Macrofauna 2, Diversity of Benthic Annelid Population in a Fjord Close to the Morbihan Gulf / D. Desbruyeres. - Seasonal Variations in the Structure of Populations of Antarctic Polynoids and the Part Played by Polychaetes in the Biocenoses of the Arctic and Antarctic / V. G. Averincev. - Benthic Bionomy of the Continental Shelf of the Kerguelen Islands: Quantitative Data on the Echinoderms of the Morbihan Gulf / Alain Guille. - Seasonal Alterations in Coastal Communities in the Davis Sea / E. N. Gruzov. - First Investigations on the Density of Soft Bottom Meiofauna in Morbihan Bay (Kerguelen Islands) / J. Soyer and F. de Bovee. - Foods and Feeding Characteristics of Antarctic Asteroids and Ophiuroids / John H. Dearborn. - Analysis of the Gigantism and Dwarfness of Antarctic and Subantarctic Gammaridean Amphipoda / Claude De Broyer. - The Breeding Biology of Chorismus antarcticus (Pfeffer) and Notocrangon antarcticus (Pfeffer) (Crustacea, Decapoda) and Its Bearing on the Problems of the Impoverished Antarctic Decapod Fauna / J. Garrey H. Maxwell. - A Preliminary Investigation of the Lipids of Chorismus antarcticus (Pfeffer) (Crustacea, Decapoda) at South Georgia / Andrew Clarke. - Some Additions to Schemes of the Vertical Zonation of Marine Bottom Fauna / A. P. Andriashev. - Quantitative Studies on the Soft-Bottom Macrobenthic Animal Communities of Shallow Antarctic Bays / V. A. Gallardo, J. G. Castillo, M. A. Retamal, A. Yáñez, H. l. Moyano, and J. G. Hermosilla. - Discussion. - Part Ill: Adaptations in Antarctic Vertebrates (Physiology). - Mechanisms of Cold Adaptation in Polar Marine Animals / Bruce L. Umminger. - The Significance of Vertebrates in the Antarctic Marine Ecosystem / Richard M. Laws. - The Role of Glycoprotein Antifreezes in the Survival of Antarctic Fishes / Arthur L. DeVries and Yuan Lin. - New Cytological, Biochemical, and Physiological Data on the Colorless Blood of the Channichthyidae (Pisces, Teleosteans, Perciformes) / J. C. Hureau, J. M. Fine, M. Marneux, and D. Petit. - Respiratory and Circulatory Adaptations to the Absence of Hemoglobin in Chaenichthyid Fishes / Edvard A. Hemmingsen and Everett L. Douglas. - Thermo- and Osmoregulatory Responses Induced by Heating and Cooling the Rostral Brainstem of the Adelie Penguin / H. T. Hammel, J. E. Maggert, E. Simon, L. Crawshaw, and R. Kaul. - Body Temperature Regulation of the Emperor Penguin (Aptenodytes forsteri G.) During Physiological Fasting / Yvon Le Maho, Philippe Delclitte, and René Groscolas. - Cardiovascular Adaptations of the Giant Petrel, Macronectes giganteus, to the Antarctic Environment / David E. Murrish and Charles L. Guard. - Temperature Regulation in the Newborn Weddell Seal, Leptonychotes weddelli / R. Elsner, D. D. Hammond, D. M. Denison, and R. Wyburn. - Discussion. - Part IV: Adaptations in Antarctic Vertebrates (Ecology). - Evolution Within Pelagic Ecosystems: Aspects of the Distribution and Evolution of the Family Myctophidae / Richard F. McGinnis. - Aspects of the Diet of the Antarctic Silverfish, Pleuragramma antarcticum / H. H. DeWitt and T. L. Hopkins. - The Bacterial Microflora in the Digestive Tracts of Penguins and Fishes from the Kerguelen Islands / R. Lesel and J. P. Menet. - The Rockhopper Penguin (Eudyptes chrysocome moseleyi), of Saint Paul and New Amsterdam Islands / T. Duroselle and B. Tollu. - Adaptive Significance of the Reoccupation Period of the Adelie Penguin / E. B. Spurr. - Interactions Between South Polar Skuas and Adelie Penguins / Dietland Müller-Schwarze and Christine Müller-Schwarze. - Comparative Feeding Ecology of the Giant Petrels Macronectes giganteus (Gmelin) and M. halli (Mathews) / G. W. Johnstone. - Feeding Methods in Seabirds: A Comparison of Polar and Tropical Nesting Communities in the Eastern Pacific Ocean / David G. Ainley. - Adaptations of Arctic Terns and Antarctic Terns Within Antarctic Ecosystems / D. F. Parmelee. - Distribution and Abundance of Seals in the Pack Ice of the Pacific Sector of the Southern Ocean / James R. Gilbert and Albert W. Erickson. - Adaptations of Weddell and Ringed Seals to Exploit the Polar Fast Ice Habitat in the Absence or Presence of Surface Predators / Ian Stirling. - Food Consumption of Seals in the Antarctic Pack Ice / Torger Øritsland. - The Leopard Seal (Hydrurga leptonyx) at Palmer Station, Antarctica / R. J. Hofman, R. A. Reichle, D. B. Siniff, and D. Müller-Schwarze. - Distribution of Toothed Whales in the Antarctic Ocean / Masaharu Nishiwaki. - Discussion. - Part V: The Structure and Function of Antarctic Freshwater Ecosystems. - Antarctic Freshwater Ecosystems: Review and Synthesis / Ronald B. Heywood. - Production and Periodicity of Antarctic Freshwater Phytoplankton / J. J. Light. - Studies on Some Saline Lakes of the Vestfold Hills, Antarctica / K. R. Kerry, D. R. Grace, R. Williams, and H. R. Burton. - Nitrogen and Phosphorus Availability to Plankton: and Benthic Communities in Lake Bonney, Southern Victoria Land, Antarctica / Robert C. Hoehn, Bruce C. Parker, Richard D. Fortner, Barron L. Weand, James A. Craft, Larry S. Lane, Robert W. Stavros, Harold G. Sugg, Jr., and Jeffrey T. Whitehurst. - Changes in Dissolved Organic Matter, Photosynthetic Production, and Microbial Community Composition in Lake Bonney, Southern Victoria Land, Antarctica / Bruce C. Parker, Robert C. Hoehn, Robert A. Paterson, James A. Craft, Larry S. Lane, Robert W. Stavros, Harold G. Sugg, Jr., Jeffrey T. Whitehurst, Richard D. Fortner, and Barron L. Weand. - Discussion. - Part VI: The Structure and Function of Antarctic Terrestrial Ecosystems. - Climatic Relationships in Antarctic and Northern Hemisphere Populations of a Cosmopolitan Moss, Bryum argenteum Hedw. / R. E. Longton and Marjorie A. Maclver. - The Growth of Mosses in Two Contrasting Communities in the Maritime Antarctic: Measurement and Pre , Includes some contributions in French
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  • 6
    Monograph available for loan
    Monograph available for loan
    New York : Academic Press
    Associated volumes
    Call number: AWI A6-94-0044
    In: Advances in geophysics, Volume 21
    Type of Medium: Monograph available for loan
    Pages: Seiten 87-230 , Illustrationen
    Series Statement: Advances in geophysics Volume 21
    Language: English
    Note: Contents 1. An Introduction to Mountain Effects 2. The Flow over Hills and the Generation of Mountain Waves 2.1 Buoyancy Forces 2.2 The Theory of Two- Dimensional Mountain Waves 2.3 Observations of Mountain Waves 2.4 The Three-Dimensional Flow over Isolated Hills 2.5 Large-Amplitude Mountains and Blocking 2.6 The Observed Barrier Effect of Mountains-The Fohn and Bora 2. 7 The Influence of the Boundary Layer on Mountain Flows 2.8 Slope Winds and Mountain and Valley Winds 3. The Flow near Mesoscale and Synoptic-Scale Mountains 3.1 Quasi-geostrophic Flow over a Mountain 3.2 The Effect of Inertia on the Flow over Mesoscale Mountains 3.3 Theories of Lee Cyclogenesis 4. Orographic Control of Precipitation 4.1 Observations of Rainfall Distribution 4.2 The Mechanism of Upslope Rain 4.3 The Redistribution of Rainfall by Small Hills 4.4 Orographic-Convective Precipitation 5. Planetary-Scale Mountain Waves 5.1 A Vertically Integrated Model of Topographically Forced Planetary Waves 5.2 The Vertical Structure of Planetary Waves on a ,8-Plane between Bounding Latitudes 5.3 Models of Stationary Planetary Waves Allowing Meridional Propagation and Lateral Variation in the Background Wind References
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  • 7
    Call number: MOP 45359/A
    Type of Medium: Monograph available for loan
    Pages: 34 S.
    Uniform Title: Glavnaja geofiziceskaja Observatorija imeni A.I.Voejkova
    Language: English
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  • 8
    Call number: AWI A17-96-0552-1 ; AWI A17-96-0552-2
    Type of Medium: Monograph available for loan
    Pages: Seiten 1-204, 257-526
    Edition: English edition updated, augmented and revised by the authors
    Edition: Fourth printing
    ISBN: 0262130629
    Uniform Title: Statističeskaja gidromechanika
    Language: English
    Note: Enthaltene Kapitel sind: Chapter 1 Laminar and turbulent flows Chapter 3 Reynolds equations and the semiempirical theories of turbulence Chapter 4 Turbulence in a thermally stratified medium
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  • 9
    Series available for loan
    Series available for loan
    Boulder : The Geological Society of America
    Associated volumes
    Call number: S 90.0095(158)
    In: Special paper
    Type of Medium: Series available for loan
    Pages: 82 S.
    ISBN: 081372158X
    Series Statement: Special paper / Geological Society of America 158
    Language: English
    Location: Lower compact magazine
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  • 10
    Monograph available for loan
    Monograph available for loan
    Oxford [u.a.] : Pergamon Press
    Call number: AWI A6-01-0208
    Type of Medium: Monograph available for loan
    Pages: XVI, 241 S. , graph. Darst.
    Edition: 1. Aufl.
    ISBN: 0080216153
    Series Statement: Pergamon international library of science, technology, engineering and social studies
    Language: English
    Note: Contents: Preface. - List of Symbols Commonly Used in the Text. - Acknowledgements. - 1 Introduction. - 2 Properties of Sea Water Relevant to Physical Oceanography. - Introduction. - Density. - Measurement of density, temperature and salinity. - Relative density, sigma-t and specific volume. - Tables for density and specific volume as functions of temperature, salinity and pressure. - Sources of data. - 3 The Basic Physical Laws Used in Oceanography and Classifications of Forces and Motions in the Sea. - Basic laws. - Classification of forces and motion. - 4 The Equation of Continuity of Volume. - The concept of continuity of volume. - The derivation of the equation of continuity of volume. - An application of the equation of continuity. - 5 Stability and Double Diffusion. - Static stabiIity. - Criterion for static stability (E). - Numerical values for stability. - Double diffusion. - Dynamic stability. - 6 The Equation of Motion in Oceanography. - The form of the equation of motion. - Obtaining solutions to the equations, including boundary conditions. - The derivation of the terms in the equation of motion. - The pressure term. - Transforming from axes fixed in space to axes fixed in the rotating earth. - Gravitation and gravity. - The Coriolis terms. - Other accelerations. - Coordinate systems. - 7 The Role of the Non-Linear Terms in the Equations of Motion. - The non-linear terms in the equation of motion. - The friction term for the instantaneous velocity. - What is the source of the difficulty?. - Scaling and the Reynolds Number. - Reynolds stresses. - Equations for the mean or average motion. - Reynolds stresses and eddy viscosity. - Scaling the equations of motion. - Dynamic stabiIity. - The effect of density variations on dynamic stability. - Effects of rotation. - 8 Currents Without Friction: Geostrophic Flow. - Hydrostatic equiIibrium. - Inertial flow. - GeopotentiaI. - Geopotential surfaces and isobaric surfaces. - The geostrophic equation. - Why worry about the geostrophic equation?. - The geostrophic method for calculating relative velocities. - An example of the calculation of a geostrophic velocity profile. - An alternative derivation of the geostrophic equation. - The 'thermal wind' equations. - Absolute velocities. - Relations between isobaric and level surfaces. - Relations between isobaric and isopycnal surfaces. - Comments on the geostrophic equation. - Justification for using the geostrophic approach to obtain the speeds of strong currents. - 9 Currents With Friction. - Wind-driven circulations - introduction. - Nansen's qualitative argument. - The equations of motion with friction included. - Ekman's solution to the equations of motion with friction present. - Comments on the above experimental observations. - Transport and upwelling. - Upwelling or downwelling away from boundaries. - Bottom friction and shallow water effects. - Limitations of the Ekman theory. - Sverdrup's solution for the wind-driven circulation. - Orders of magnitude of the terms. - Application of the Sverdrup equation. - The general form of the Sverdrup equation. - The mass transport stream function. - Westward intensification - Stommel's contribution. - The planetary wind field. - Munk's solution. - Comments on Munk's solution. - Vorticity. - Relative vorticity. - Planetary vorticity. - Absolute vorticity. - Potential vorticity. - Westward intensification of ocean currents explained using conservation of potential vorticity. - Equatorial undercurrents. - The boundary layer approach. - The use of the boundary layer approach to obtain a solution to Munk's equation. - A simple inertial theory by Stommel. - 10 Thermohaline Effects. - The deep circulation. - Equations for salt and temperature (heat) conservation. - Equations for the average salinity and temperature. - Reynolds fluxes and eddy diffusivity. - Thermoclines and the thermohaline circulation. - The mixed layer of the ocean. - 11 Numerical Models. - Introduction. - Numerical methods. - General approach to numerical modelling of ocean circulations. - Descriptions of some models of individual oceans. - O'Brien's two-dimensional wind-driven model of the North Pacific. - Cox's model of the Indian Ocean. - Holland and Hirschmann's model of the Atlantic Ocean. - Two models of the circulation of the world ocean. - Models of mesoscale eddies. - Comments on the numerical model solutions. - 12 Waves. - Introduction. - Some general characteristics of waves. - Small amplitude waves. - Orbital motion of the water particles. - Refraction and breaking in shallow water; diffraction. - The generation of waves. - Measurement of waves. - ReaI waves. - Wave generation by the wind; semi-empirical relations. - Energy of waves. - Tsunamis or seismic sea waves. - Internal waves. - Effects of rotation. - Modified gravity waves. - Kelvin waves. - Planetary or Rossby waves. - Topographic effects. - 13 Tides. - Introduction. - Tide-producing forces. - Components of the tide-producing forces. - Ocean responses to the tide-producing forces - tidaI theories. - The practical approach to tide prediction. - The measurement of tides. - Types of tides. - Tidal currents. - Tides in bays-resonance. - Storm surges. - 14 Some Presently Active and Future Work. - APPENDIX I Mathematical Review with Some Elementary Fluid Mechanics. - Introduction. - Scalars and vectors. - Derivatives. - The individual or total derivative. - Integrals. - Fields. - Descriptions of fluid flow. - Convergences and divergences. - Hydrostatic pressure. - Slope effects. - CompressibiIity. - Centripetal and centrifugal forces. - APPENDIX 2 Units Used in Physical Oceanography. - Introduction. - Base units. - Derived and temporary units. - Units used in dynamic oceanography and some numerical values. - SUGGESTIONS FOR FURTHER READING AND FOR REFERENCE. - INDEX.
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  • 11
    Monograph available for loan
    Monograph available for loan
    Associated volumes
    Call number: M 05.0294/1
    In: Ore deposits of the USSR
    Type of Medium: Monograph available for loan
    Pages: 352 S. : graph. Darst.
    ISBN: 0273010344
    Language: English
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  • 12
    Call number: S 05.0339(29)
    In: Initial reports of the deep sea drilling project
    Type of Medium: Series available for loan
    Pages: xxi, 1197 S. : zahlr. graph. Darst.
    Language: English
    Location: A 18 - must be ordered
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  • 13
    Call number: S 05.0339(33)
    In: Initial reports of the deep sea drilling project
    Type of Medium: Series available for loan
    Pages: xx, 973 S. : zahlr. graph. Darst. + 3 Kt.
    Language: English
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  • 14
    Call number: S 05.0339(36)
    In: Initial reports of the deep sea drilling project
    Type of Medium: Series available for loan
    Pages: xxii, 1079 S. : zahlr. graph. Darst. + 3 Kt.
    Language: English
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  • 15
    Call number: S 05.0339(39)
    In: Initial reports of the deep sea drilling project
    Type of Medium: Series available for loan
    Pages: xxv, 1139 S. : zahlr. graph. Darst. + 6 Kt.
    Language: English
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  • 16
    Call number: S 05.0339(41)
    In: Initial reports of the deep sea drilling project
    Type of Medium: Series available for loan
    Pages: xxvi, 1259 S. : zahlr. graph. Darst. + 1 Kt.
    Language: English
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  • 17
    Journal available for loan
    Journal available for loan
    Associated volumes
    Call number: Z 91.0230
    In: EOS
    Type of Medium: Journal available for loan
    Language: English
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  • 18
    Monograph available for loan
    Monograph available for loan
    [Edgecumbe, N.Z.] : A. Muller
    Call number: M 15.89146
    Description / Table of Contents: An account of the results of the 2 March 1987 earthquake in the eastern Bay of Plenty and the aftermath's effects on the people and places on the Rangitaiki Plains
    Type of Medium: Monograph available for loan
    Pages: 223 S., , Ill.
    Language: English
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  • 19
    Monograph available for loan
    Monograph available for loan
    Melbourne : Commonwealth Scientific and Industrial Research Organization
    Call number: MOP Per 301/B
    Type of Medium: Monograph available for loan
    Pages: 21 S. , Ill.
    ISBN: 0643003428
    Series Statement: Division of Entomology technical paper 16
    Language: English
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  • 20
    Series available for loan
    Series available for loan
    Geneva : WMO
    Associated volumes
    Call number: MOP Per 800(394)
    In: WMO
    In: Technical note
    Type of Medium: Series available for loan
    Pages: 160 S.
    Series Statement: WMO / World Meteorological Organization 394
    Language: English
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  • 21
    Monograph available for loan
    Monograph available for loan
    New York [u.a.] : Pergamon Press
    Call number: M 93.0234
    Type of Medium: Monograph available for loan
    Pages: IX, 288 S. : Ill.
    Edition: 2. print.
    ISBN: 0080195946
    Language: English
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  • 22
    Monograph available for loan
    Monograph available for loan
    New York [u.a.]: Wiley
    Call number: M 93.0239
    Type of Medium: Monograph available for loan
    Pages: XVI, 798 S.
    Edition: 2. Aufl.
    Language: English
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  • 23
    Monograph available for loan
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    Chichester [u.a.] : Wiley
    Call number: M 93.0152
    Type of Medium: Monograph available for loan
    Pages: XII, 622 S.
    Edition: reprinted
    ISBN: 0471813834
    Language: English
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  • 24
    Monograph available for loan
    Monograph available for loan
    New York [u.a.] : Springer
    Call number: PIK N 630-92-0608
    Type of Medium: Monograph available for loan
    Pages: XIV, 237 S.: Ill., Kt.
    Edition: 3. print.
    ISBN: 0387900462 , 3-540-90046-2
    Series Statement: Heidelberg science library 15
    Uniform Title: Vegetationszonen und Klima
    Language: English
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  • 25
    Monograph available for loan
    Monograph available for loan
    New York [u.a.]: Wiley
    Call number: M 93.0155
    Type of Medium: Monograph available for loan
    Pages: VIII, 481 S.
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  • 26
    Monograph available for loan
    Monograph available for loan
    San Francisco : Freeman
    Call number: M 93.0163
    Type of Medium: Monograph available for loan
    Pages: X, 530 S. : Ill., graph. Darst.
    Edition: 3. ed.
    ISBN: 071670272X
    Language: English
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  • 27
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Springer
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    Call number: M 93.0156
    In: Scientific Report
    Type of Medium: Monograph available for loan
    Pages: IX, 328 S. + 1 Kt.-Beil.
    ISBN: 3540094407
    Series Statement: Scientific Report / Inter-Union Commission of Geodynamics 58
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  • 28
    Monograph available for loan
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    Amsterdam [u.a.] : Elsevier
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    Call number: M 93.0229
    In: Developments in soil science
    Type of Medium: Monograph available for loan
    Pages: XIV, 281 S. : graph. Darst.
    Edition: 2. rev. ed.
    ISBN: 0444414355
    Series Statement: Developments in soil science 5A
    Language: English
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  • 29
    Call number: M 93.0205
    Type of Medium: Monograph available for loan
    Pages: 468 S.
    Edition: 2. ed.
    ISBN: 0912890037
    Language: English
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  • 30
    Monograph available for loan
    Monograph available for loan
    Sussex : Artemis Pr.
    Call number: M 93.0254
    Type of Medium: Monograph available for loan
    Pages: 383 S.
    Edition: 2nd ed., repr.
    ISBN: 0851413080
    Language: English
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  • 31
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    Berlin [u.a.]: Springer
    Call number: 93.0162
    Pages: XII, 450 S.
    Language: English
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  • 32
    Call number: PIK N 456-99-0151 ; MOP 44361/3 / Mitte
    In: Proceedings of the joint symposium on atmospheric ozone, Volume 3
    Type of Medium: Monograph available for loan
    Pages: 386 Seiten
    Series Statement: Proceedings of the joint symposium on atmospheric ozone 3
    Language: English
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  • 33
    Call number: PIK N 456-99-0149 ; MOP 44361/1 / Mitte
    In: Proceedings of the joint symposium on atmospheric ozone, Volume 1
    Type of Medium: Monograph available for loan
    Pages: 386 Seiten , Illustrationen
    Series Statement: Proceedings of the joint symposium on atmospheric ozone 1
    Language: English
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  • 34
    Call number: PIK N 456-99-0150 ; MOP 44361/2 / Mitte
    In: Proceedings of the joint symposium on atmospheric ozone, Volume 2
    Type of Medium: Monograph available for loan
    Pages: 386 Seiten
    Series Statement: Proceedings of the joint symposium on atmospheric ozone 2
    Language: English
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  • 35
    Call number: G 7862 ; M 93.0149/11
    In: Physics and chemistry of the earth
    In: International series of monographs on earth sciences
    Type of Medium: Monograph available for loan
    Pages: XI, 909 S. : graph. Darst.
    Edition: 1. ed.
    Series Statement: Physics and chemistry of the earth 11
    Language: English
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  • 36
    Call number: M 93.0067/1
    In: American Chemical Society symposium series
    Type of Medium: Monograph available for loan
    Pages: XII, 914 S. : graph. Darst.
    Series Statement: American Chemical Society symposium series 93
    Language: English
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  • 37
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/26
    In: CRREL Report, 78-26
    Description / Table of Contents: Ice fog suppression experiments on the Fort Wainwright Power Plant cooling pond were conducted during the winters of 1974-76. Baseline information studies occupied a sizable portion of the available ice fog weather in 1974-75. Then hexadecanol was added to the pond and dramatically improved visibility by reducing fog generated from water vapor released by the pond at -14 C. Although this temperature was not low enough to create ice fog, the cold vapor fog created was equally as devastating to visibility in the vicinity of the pond. During the winter of 1975-76, suppression tests were continued using films of hexadecanol, mixes of hexadecanol and octadecanol, and ethylene glycol monobutyl ether (EGME). Suppression effectiveness at colder temperatures was stuided and limits to the techniques were probed. A reinforcing grid was constructed that prevented breakup of the film by wind and water currents. Lifetime tests indicated that EGME degrades much more slowly than either hexadecanol or the hexadecanol-octadecanol mix. The films were found to be very effective fog reducers at warmer temperatures but still allowed 20% to 40% of normal evaporation to occur. The vapor thus produced was sufficient to create some ice fog at lower temperatures, but this ice fog occurred less frequently and was more quickly dispersed than the thick fog that was present before application of the films.
    Type of Medium: Series available for loan
    Pages: iv, 27 Seiten , Illustrationen
    Series Statement: CRREL Report 78-26
    Language: English
    Note: CONTENTS Abstract Preface Introduction Ice fog from cooling ponds Evaporation Relative humidity and cold air Ice fog suppression Air movement Plastic films Rafts Injection wells Cooling towers Chemical films Reinforced film experiments Meteorological data collection Floating reinforcement grid Application of the hexadecanol film Hexadecanol, octadecanol mixes Ethylene glycol monobutyl ether Laboratory tests of suppression effectiveness Conclusions Literature cited Appendix A. Design for an automatic thin chemical film applicationsystem Appendix B. Meteorological data
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  • 38
    Series available for loan
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/22
    In: CRREL Report, 78-22
    Description / Table of Contents: Special environmental factors that influence the design, laying and maintenance of undersea pipelines and cables in polar waters are described. Various approaches to the protection of submarine pipes and cables are considered, and prime emphasis is given to burial techniques for shallow water. A wide range of methods for trenching and burying are discussed, and technical data are given.
    Type of Medium: Series available for loan
    Pages: v, 36 Seiten , Illustrationen
    Series Statement: CRREL Report 78-22
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors Introduction Types of pipelines and cables Potential hazards to pipelines and cables Areas of concern Waterdepth Sea ice Icebergs and ice islands Submarine permafrost Ice gouging Seabed erosion by water jets Protection methods Protection of unburied pipes and cables Protection by burial Backhoe digging Wireline equipment Plowing and ripping from the surface Plowing and ripping by self-propelled seabed vehicles Bucket ladder dredges Suction dredging Conventional cutterhead dredges Low pressure water jetting Bottom-traveling cutterhead dredges Explosive methods Novel methods Disc saws, wheel ditchers and milling drums Ladder trenchers and chain saws Repetitive impulse devices High pressure water jets Flame jets and plasma torches Electrical discharge and electromagnetic radiation Chemical methods Conclusions Literature cited
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  • 39
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/20
    In: CRREL Report, 78-20
    Description / Table of Contents: Abstract: Measurements of the concentrations of Aitken nuclei in maritime air were made near Barrow, Alaska, in June 1975 with a modified Nolan-Pollack small-particle detector. The concentrations varied from 50 to 300 particles cm^-3 depending upon meteorological conditions. The mean Aitken nuclei count was 100 particles cm^-3 for diameters greater than 2 x 10^-3 μm. Transmission electron micrographs of aerosols in maritime air near Barrow were taken. The size range was measured to be 0.01 to 2.5 μm in diameter with the most frequently observed diameter being 0.04 μm. The volume of the maritime air and the collection efficiency of aerosol particles on filmed grids for electron microscopy were measured. The aerosol concentrations were found to be 76 to 101 particles cm^-3 ; the mean concentration was calculated to be 87 particles cm^-3. The aerosol particles in the maritime air were identified by electron microscopy and selected area electron diffraction analysis. About 20% of the aerosol particles were identified, and 80% of the particles were too small for electron diffraction analysis. Sea salt particles constituted 2% of the total, and clay minerals 3%; these particles were considered to be of natural origin. Solid combustion by-products such as coagulated carbon particles and fly ash particles constituted 16%. Despite the comparative remoteness of the sampling site, the measurements indicate that many anthropogenic aerosols were found using an electron microscope.
    Type of Medium: Series available for loan
    Pages: iv, 48 Seiten , Illustrationen
    Series Statement: CRREL Report 78-20
    Language: English
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  • 40
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/16
    In: CRREL Report, 78-16
    Description / Table of Contents: A model investigation of drifting snow conditions was conducted in a hydraulic flume using a sand-water analog. Model results were evaluated to define modeling parameters that would allow quantitative correlation between measured prototype drift conditions and the model. The modeled structure was the standard plan snow fence designed by the Wyoming Highway Department and installed along Interstate Highway 80 in 1971. The performance of this system was documented by the Rocky Mountain Forest and Range Experiment Station of the U.S. Forest Service. Models of the fence were constructed for three heights and two geometric scales. Geometric scaling was based on terrain roughness and boundary layer thickness considerations, while velocity scaling was based on particle fall velocity and threshold of motion characteristics. Simulation of the atmospheric boundary layer was found to be of primary importance. Velocity scaling analysis suggested the use of a 'significant wind' concept based on a combination of velocity magnitude and frequency. Similarity of precipitation rate was not essential, and could be altered within limits to adjust the time scale. The response of the model to the shape of model elements was significant. Although the model is distorted and inexact similarity is achieved, it appears useful on a practical basis.
    Type of Medium: Series available for loan
    Pages: vi, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 78-16
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Background Experimental design Similitude considerations The model Model operation Results Velocity Fence height Porosity Model correlation Summary and conclusions Recommeqdations for future work Literature cited Appendix A
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  • 41
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/7
    In: CRREL Report, 78-7
    Description / Table of Contents: The theory of non-coaxial in-plane plastic deformation of soils that obey the Coulomb yield criterion is presented. The constitutive equations are derived by use of the geometry of the Mohr circle and the theory of characteristic lines. It is found that, for solving a boundary value problem, the non-coaxial angle must be given such values that enable us to accommodate the presupposed type of flow in the given domain satisfying the given boundary conditions. The non-coaxial angle is contained in the constitutive equations as a parameter. Therefore, the plastic material obeying the Coulomb yield criterion is a singular material whose constitutive equations are not constant with material but are variable with flow conditions.
    Type of Medium: Series available for loan
    Pages: iii, 28 Seiten , Illustrationen
    Series Statement: CRREL Report 78-7
    Language: English
    Note: CONTENTS Abstrac Preface Introduction Analysis of stress Geometry of the Mohr circle Stress characteristic directions Analysis of strain rate Constitutive equations Strain-rate characteristic directions Constitutive geometry Strain-rate tensor The dyadic expression Plastic work rate Coordinate transformation Example The stress solution Velocity equations in the a-characteristic curvilinear coordinates The constant speed solution Velocity equations in the constant density region Solution in the first constant-density subregion Solution in the second constant-density subregion Solution in the passive region Conclusion Literature cited
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  • 42
    Call number: ZSP-201-78/4
    In: CRREL Report, 78-4
    Description / Table of Contents: The use of radio-echo sounding records to indicate the presence of internal layers within large ice sheets is of interest to glaciologists because it offers a means of tracking the internal properties of the ice sheets over large distances. The interpretation of the reflections obtained in this manner is more valuable, however, if a physical property change relating to the glaciological regime can be related to the dielectric property change producing the radio-echo reflections. In this report, we use the measured physical properties of core to bedrock taken at Cape Folger, East Antarctica (66 deg 22 min s, 111 deg (E), 324-m depth), to compute a profile of dielectric properties and from this, a depth-reflection coefficient profile for comparison with observed radio-echo reflections. The measurements available on physical properties are: density variations, bubble size and shape changes, and crystal fabric variations. The depths of the strong reflections shown on the available radio-echo records are in reasonable agreement with the depths corresponding to the highest reflection coefficients computed from the combined physical property measurements. In calculations to differentiate the separate effects of different physical properties, it appears that density variations account for the primary contributions to the calculated dielectric property changes corresponding to the highest reflection coefficients. However, bubble changes alone can also account for reasonable, though lower, reflection coefficients at the appropriate depths. Crystal fabric variations correspond poorly with the reflection locations. Density variations are normally associated with depositional events in the history of the ice sheet.
    Type of Medium: Series available for loan
    Pages: vi, 12 Seiten , Illustrationen
    Series Statement: CRREL Report 78-4
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Derivation of the power reflection coefficient-depth variation Possible sources of dielectric constant variation with depth in ice sheets Ice density variations Effect of macroscopic impurity layers Effect of microscopic impurtty layers Changes in inclusion geometry Effect of crystal orientation changes Physical properties of the Cape Folger core Density-depth profile Air bubble-geometry depth profile Crystal orientation-depth profile Radio-echo sounding data Results and conclusions Literature cited
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  • 43
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-77/8
    In: CRREL Report, 77-8
    Description / Table of Contents: A broadbanded impulse radar system was used for aerial detection of accumulated frazil and brash ice in a 9.5-km reach of the St. Lawrence River near Ogden Island. The remote sensing and data reduction system developed for the project provided data sufficient for production of a contour map having 1-ft intervals. With this contour map, the accumulation pattern of frazil and brash ice could be analyzed. Recommendations are given for improving the performance of the aerial profiling system.
    Type of Medium: Series available for loan
    Pages: iv, 19 Seiten , Illustrationen
    Series Statement: CRREL Report 77-8
    Language: English
    Note: CONTENTS Page Abstract Preface Conversion factors: U.S. customary to metric (SI) units of measurement Background Objectives Profiling system Approach Profiling method Data reduction and interpretation Results Conclusions Recommendations Literature cited Appendix A. Comparison of ground and aerial data
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  • 44
    Call number: ZSP-201-77/9
    In: CRREL Report, 77-9
    Description / Table of Contents: This report presents experimental results on the conditions of initiation of an ice jam by a simple surface obstruction, on the equilibrium thickness of an ice jam formed by accumulation and submergence of ice floes, and on the compression strength of floating, fragmented ice cover. In the study on ice jam initiation, it was found that the minimum concentration of floes in the opening of the obstruction at which a jam occurs is nearly independent of the ratio of width of constricted passage to channel width, and is proportional to a negative power of the ratio of floe length to width of constricted passage. From energy analysis of floe submergence, a relationship relating the thickness of a jam formed by accumulation and submergence of floes to the approach flow characteristics was derived and found to fit satisfactorily the experimental data. In experiments on compression strength of floating, fragmented ice cover it was found that the compressive strength is inversely proportional to compression velocity and independent of cover length.
    Type of Medium: Series available for loan
    Pages: vii, 45 Seiten , Illustrationen
    Series Statement: CRREL Report 77-9
    Language: English
    Note: CONTENTS Abstract Preface List of symbols Introduction I. Initiation of ice jams by partial surface obstructions A. Introductory remarks B. Experimental apparatus and procedure C. Dimensional analysis D. Presentation of results and discussion ΙΙ. Thickness of ice jams due to accumulation and transport of ice floes A. Introductory remarks B. Experimental apparatus and procedures C. Presentation of results E. Conclusion III. Compressive strength of floating fragmented ice covers A. Introductory remarks B. Experimental setup and procedure C. Presentation of results and discussion D. Conclusions Literature cited Appendix A: Experimental results on ice jam initiation Appendix B: Effect of surface tension on submergence velocity of ice floes Appendix C: Experimental results for ice jam thickness study Appendix D: Experimental results on compressive strength of fragmented ice cover
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  • 45
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/1
    In: CRREL Report, 78-1
    Description / Table of Contents: The results of axial double point-load tests on disk samples of snow and ice obtained from the area of McMurdo Sound, Antarctica, are presented. They show the effects of temperature, sample length, load point diameter and specific gravity on failure load. It was determined that 13 samples should be tested to obtain a representative mean strength index. The results show that the axial double point-load test has good possibilities as a rapid field test for determining the unconfined comrpessive strength of snow and ice but that further evaluation of the variables affecting test results must be made.
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    Pages: iii, 11 Seiten , Illustrationen
    Series Statement: CRREL Report 78-1
    Language: English
    Note: CONTENTS Abstract Preface Introduction Test procedure Test program Test samples Number of test for determining strength index Effect of temperature Effect of sample length Effect of load point size Tests on snow Discussion Recommendations Literature cited
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  • 46
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-77/31
    In: CRREL Report, 77-31
    Description / Table of Contents: Ten roofs in Concord, New Hampshire, were surveyed for wet insulation using a hand-held infrared camera. Suspected wet areas were marked on the roof with spray paint and roof samples were obtained to verify wet and dry conditions. Recommendations for maintenance and repair were made based on infrared findings, water contents, and visual examinations. An incremental economic study is presented to serve as a guide in determining the most cost-effective approach.
    Type of Medium: Series available for loan
    Pages: v, 29 Seiten , Illustrationen
    Series Statement: CRREL Report 77-31
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors: US, customary to metric (SI) units of measurement Introduction Infrared camera Core samples State House State House Annex State Library Legislative Office Building Public Health Complex Highway Garage Fish and Game Offlces Supreme Court John O. Morton Building Department of Health and Welfare Laboratory Economics of roof reinsulation Conclusions and recommendations Literature cited
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  • 47
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-77/16
    In: CRREL Report, 77-16
    Description / Table of Contents: A brief discussion is given of the ways an icebreaker breaks ice. Since the icebreaking process is so complex, the solution of a mathematical model does not appear to be feasible. As an alternative, it is suggested that physical models be used to design icebreakers. The appropriate scaling laws for physical models are developed and their practical limitation discussed.
    Type of Medium: Series available for loan
    Pages: ii, 9 Seiten , Illustrationen
    Series Statement: CRREL Report 77-16
    Language: English
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  • 48
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-77/17
    In: CRREL Report, 77-17
    Description / Table of Contents: A literature search was made for information on the accretion of ice on ocean structures and on methods for control. The bulk of the reports were in Russian, with some additional Japanese, British, American, Canadian, and Icelandic sources. Analysis of icing reports indicated that sea spray is the most important cause of ship icing, with lesser amounts due to freezing rain, snow, and fog. Icing is a potential danger whenever air temperatures are below the freezing point of water and the sea temperature is 6 C or lower. Theoretical work on the ice accretion process is discussed, and a method is suggested, based on Russian experiments, for calculating the sea spray accumulation rate for cylindrical and flat surfaces as a function of water source temperature, air temperature, and wind speed. Other factors that influence icing severity are ship size and configuration, angle between ship course and water heading, and ship speed. Icing in the north temperate latitudes generally occurs in the rear of barometric depressions. Maps showing limits of various degrees of icing severity are included. Atmospheric icing measurements on tall land-based structures are presented, and potential maximum accumulations estimated. Control measures are discussed, though no completely effective method is available. Mechanical (impaction) methods are the most common, but experiments have been conducted on heated, icephobic, and deformable surfaces, and with freezing point depressants. No device for the unequivocal measurement of ice accumulation is available, though some experimental methods are suitable for controlled testing; it is recommended that a device be developed.
    Type of Medium: Series available for loan
    Pages: v, 42 Seiten , Illustrationen
    Series Statement: CRREL Report 77-17
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors: U.S. customary to metric units of measurements Introduction The freezing proeess Icing observations Geographical distribution of icing and contributing meteorological conditions Extreme icing conditions Extremes of icc accumulation Prediction of icing occurrences Prediction of icing intensity and rate Control methods Measurement of icing rate Conclusions and recommendations Literature cited Appendix A. Maps of icing occurrence and rate Appendix B. Data for computing ship icing rates Appendix C. Estimation of ice accumulation
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  • 49
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-77/30
    In: CRREL Report, 77-30
    Description / Table of Contents: Abstract: Ageneral computer model to simulate municipal snow removal has been developed. Programs which aid in the routing of snowplows are a part of this package. Once vehicle routes are created, the simulation program can be used to assess situations varying both equipment and meteorological parameters. Time for each plow to complete its route is calculated. Considerations are made for the above variable parameters plus plowing windrow, route starting depth, overlapping truck routes and intersection delay time. The effects of storm length, snowfall rate and starting depth on total plowing time are examined in a test case.
    Type of Medium: Series available for loan
    Pages: ii, 7 Seiten , Illustrationen
    Series Statement: CRREL Report 77-30
    Language: English
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  • 50
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-76/2
    In: CRREL Report, 76-2
    Description / Table of Contents: The repair and maintenance costs of low slope roofs are high and their life expectancy is less than desired. The increasing use of insulation is accompanied by a greater incidence of problems. The experience in cold regions amplifies these experiences. Protected membrane roofs have the prerequisites for better performance and the experience to date is encouraging. The results of performance measurements of three roofs built by the Corps of Engineers verify that the membrane remains at nearly constant temperature, independent of the weather, and that the insulation retains its integrity despite periodic wetting. Moisture absorption is slow and appears to stabilize in time due to the self-drying nature of the roof. Heat losses are increased due to rain, and extra insulation should be added to compensate for these losses. The resistance of protected membrane roofs to fire, traffic, impact, and other adverse forces is superior. So far, the initial cost of protected membrane roofs is at a premium, primarily due to the cost of concrete pavers. The initial cost premium can be justified, however, by the reduced repair and maintenance costs as indicated to date, and by the longer life expectancy of the protected membrane. The high probability of superior performance and cost effectiveness is a compelling reason to incorporate protected membrane roofs increasingly in Government construction.
    Type of Medium: Series available for loan
    Pages: v, 27 Seiten , Illustrationen
    Series Statement: CRREL Report 76-2
    Language: English
    Note: CONTENTS Page Abstract Preface Introduction Low slope roof problems and repair costs Protected membrane roofs and materials Installations of protected membrane roofs Performance evaluation Test program Effectiveness Thermal efficiency Heat balance Internal cooling due to rain Moisture absorption and thermal conductivity of insulations Durability and life expectancy Fire resistance Patent considerations Costs of roofs Design considerations Proposed specifications Conclusions and recommendations Literature cited
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  • 51
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-76/4
    In: CRREL Report, 76-4
    Description / Table of Contents: Large areas of grounded sea ice have been reported by early arctic explorers and more recently by the U.S. Coast Guard. The ESSA, ERTS, NOAA and DMSP satellites now provide multispectral imagery with sufficiently high resolution to allow detailed sequential observations to be made of the movement and spatial extent of arctic sea ice. This report discusses the location, formation and decay of five large (greater than 30 sq km) islands of grounded sea ice in the southern Chukchi Sea as observed for an extended period of time using satellite imagery. Measurements of the bathymetry around one grounded sea ice feature are presented along with observations made and photos taken from the ice surface. The potential use of these sea ice islands as research stations is also discussed.
    Type of Medium: Series available for loan
    Pages: v, 24 Seiten , Illustrationen
    Series Statement: CRREL Report 76-4
    Language: English
    Note: Contents Introduction The discovery Age of the island Island visit Other islands of grounded ice Discussion Literature cited
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  • 52
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-76/7
    In: CRREL Report, 76-7
    Description / Table of Contents: This report covers a series of cantilever beam tests designed to determined the efficacy of adding reinforcement to an ice cover. Tests were run using 1-in.-diam tree branches, 3/16-in.-diam wire rope and 9/16-in. half-round wood dowels as reinforcement for both seawater and freshwater ice. The results show a definite advantage derived from using reinforcement, even when poorly placed. The results also show that reinforced ice carries a load even after it cracks. Thus, after the initial cracks there is time to remove people and equipment before final breakthrough. One must bear in mind, however, that reinforcement has disadvantages. The darker reinforcement absorbs solar radiation and thereby causes earlier weakening of the ice cover. Also, in many cases the time and effort required to place reinforcement may exceed those required to achieve equal strength by additional thickening of the ice sheet. This study has shown that understanding of the failure mechanism of ice under repetitive loading is poor and that future studies should be performed on this problem. Also, this study covered only cantilever beams. The actual field problem is strengthening a three-dimensional sheet. Hence, distribution and orientation of the reinforcement should be addressed in future studies.
    Type of Medium: Series available for loan
    Pages: v, 12 Seiten , Illustrationen
    Series Statement: CRREL Report 76-7
    Language: English
    Note: Contents Abstract Preface Summary Conversion factors: U.S. customary to SI metric units Introduction Typical methods of constructing ice bridges Current knowledge Test program Objectives Equipment Procedure Data General Specific ice sheets Test results Conclusions Recommendations Literature cited
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  • 53
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-76/10
    In: CRREL Report, 76-10
    Type of Medium: Series available for loan
    Pages: vi, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 76-10
    Language: English
    Note: CONTENTS Introduction Experimental work SCR samples CAG samples CMS samples UAG samples SI samples Optical system Equipment Procedure Photographic work Large cracks and fissures Small damage to the surface Small damage to the buIk Results Damage as a function of the position x of the focal point; n(x) Damage as a function of the number of irradiations #; n(#) Damage as a function of crystallographic orientation ĉ; n (ĉ); p (ĉ) Damage as a function of surface structure Damage as a function of age A; n (A) Damage as a function of wavelength λ; p(λ) Systematic study of damage as a function of W, t, m and s; n(W, t, m, s) Analysis Fracture in ice Mechanisms for optically generated damage in transparent dielectrics Discussion of the results Summary and conclusions Literature cited
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  • 54
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-76/15
    In: CRREL Report, 76-15
    Description / Table of Contents: A literature review of revegetation and biological aspects of restoration research was completed for arctic and sub­arctic North America. Although there is a great deal of climatic variation in this region it is generally characterized by extreme conditions, such as a short growing season and permafrost. Most of the revegetation research has been undertaken in the last six years as a result of increased natural resource development. The primary goal has been erosion control, with aesthetics, minimization of thermokarst, and production of browse as other objectives. Revege­tation and long-term restoration methods depend upon such variables as the site conditions, nutrient regime (especially as this is influenced by the climatic conditions in the Arctic and Subarctic), plant adaptations, and the selection of native or introduced species. Technologies which have been developed to meet these conditions primarily include seedbed preparation, use of seed mixes, and fertilization and seeding methods. Most of the research has focused on the use of agronomic grasses and legumes. These are selected on the basis of a number of factors, such as cold hardiness and growth form prior to evaluation in the laboratory and the field. The most successful species to date have been Arctared fescue and Nugget bluegrass in the Arctic, while these two as well as creeping red fescue, meadow foxtail, Frontier reed canarygrass, Durar hard fescue, slender wheatgrass, and Icelandic poa did well in the Subarctic. Similar methods have been attempted to a more limited extent with evaluation of native herbaceous and woody species which seem promising on the basis of natural succession studies. There are a number of continuing research needs for arctic anc subarctic revegetation. These include fertilization strategies, development of specialized techniques (such as sprigging) for native species, and longer term studies. It is particularly important to integrate short term revegetatio methods with long-term restoration goals.
    Type of Medium: Series available for loan
    Pages: iv, 32 Seiten , Illustrationen
    Series Statement: CRREL Report 76-15
    Language: English
    Note: CONTENTS Page Abstract Preface Introduction Definition of revegetation Definition of restoration Objectives Some revegetation considerations Site conditions Nutrient regime Plant adaptations Native species vs introduced species Methods Seedbed preparation Seeding methods Timing of seeding Seed mixes Fertilization Agronomic grasses and legumes Selection criteria Laboratory evaluation Field evaluation Effect of revegetation methods Site conditions Maintenance of herbaceous cover Introduced woody species Native species — succession Significance of disturbance Primary succession Secondary succession Herbaceous native species Selection Laboratory evaluation Field evaluation Effect of revegetation methods Woody native species Selection Laboratory evaluation Field evaluation Native species and agronomic species, in combination Recommendations for research Summary Bibliography Appendix: Species tested
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  • 55
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-76/21
    In: CRREL Report, 76-21
    Description / Table of Contents: The effects of snow temperature and initial density on the stress vs density and stress vs deformation relationships were investigated for shallow compacted snow in the density range of 0.28 to 0.76 g/cu m, for stress range of 0.5 to 72 bars and a temperature range of -1 to -34 C at a deformation rate of 40 cm/s. A decrease in temperature increases the resistance to stress, the effect increasing with applied stress. For any stress, an increase in the initial density results in an increase in the resulting density, the effect decreasing with an increase in stress. The approximate yield envelopes, which define the stress required to initiate any deformation of snow of a particular density and temperature, were determined. Rapid compaction of snow results in extensive recrystallization, significantly different from that of naturally compacted snow. At a stress of 72 bars, transformation to ice occurs only at temperature above -10C.
    Type of Medium: Series available for loan
    Pages: vi, 47 Seiten , Illustrationen
    Series Statement: CRREL Report 76-21
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Description of study Sample preparation Test equipment and procedure Discussion of results Stress-density relationship Stress-deformation relationship Summary and conclusions Microstructural examination of artifically compacted snow Analytical techniques Results and discussion Conclusions Literature cited Appendix: Photographs of oscilloscope traces
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  • 56
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    Monograph available for loan
    København : Nyt Nordisk Forl.
    Associated volumes
    Call number: ZSP-553-204,1
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 22 S. + Beil
    ISBN: 8717023785
    Series Statement: Meddelelser om Grønland 204,1
    Language: English
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  • 57
    Monograph available for loan
    Monograph available for loan
    Amsterdam [u.a.] : Elsevier
    Call number: M 93.0227 ; M 304
    Type of Medium: Monograph available for loan
    Pages: X, 323 S.
    ISBN: 0444415661
    Language: English
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  • 58
    Monograph available for loan
    Monograph available for loan
    Leipzig : Dt. Verl. für Grundstoffindustrie
    Call number: G 5891 2. Ex. ; G 5890 ; M 93.0194
    Type of Medium: Monograph available for loan
    Pages: 458 S. : graph. Darst. + 2 Kt.
    Edition: 1. Aufl.
    Language: English
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  • 59
    Monograph available for loan
    Monograph available for loan
    Englewood Cliffs : Prentice-Hall
    Call number: M 93.0147
    Type of Medium: Monograph available for loan
    Pages: XII, 498 S. : graph. Darst.
    ISBN: 0133510646
    Language: English
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  • 60
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    Monograph available for loan
    Berlin [u.a.] : Springer
    Associated volumes
    Call number: G 7148(2. Ex.) ; 10/G 7724 ; M 93.0092/12 ; G 7148(1. Ex.)
    In: Minerals and rocks
    Type of Medium: Monograph available for loan
    Pages: IX, 229 S. : graph. Darst.
    Series Statement: Minerals and rocks 12
    Language: English
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  • 61
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    Ann Arbor
    Call number: 93.0201
    Pages: VI, 265 S.
    Language: English
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  • 62
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    Monograph available for loan
    New York [u.a.] : Wiley
    Call number: M 93.0160
    Type of Medium: Monograph available for loan
    Pages: XI, 319 S.
    ISBN: 0471029343
    Language: English
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  • 63
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    Monograph available for loan
    Princeton, NJ : Princeton Univ. Pr.
    Call number: G 7717 ; G 7866 ; M 93.0036
    Type of Medium: Monograph available for loan
    Pages: 588 S. : Ill., graph. Darst.
    ISBN: 0691082235
    Language: English
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  • 64
    Monograph available for loan
    Monograph available for loan
    Budapest : Akad. Kiadó
    Call number: G 7371 ; 11528 ; M 93.0161
    Type of Medium: Monograph available for loan
    Pages: 272 S. : graph. Darst.
    ISBN: 9630514427
    Language: English
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  • 65
    Call number: M 93.0157
    Type of Medium: Monograph available for loan
    Pages: XXIX, 569 S.
    Edition: 3rd ed.
    ISBN: 0582352584
    Language: English
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  • 66
    Call number: 9/MR 90.1102 ; MR 90.1103 ; M 93.0055/1
    In: Developments in precambrian geology
    Type of Medium: Monograph available for loan
    Pages: VIII, 406 S. : graph. Darst.
    Series Statement: Developments in precambrian geology 1
    Language: English
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  • 67
    Monograph available for loan
    Monograph available for loan
    Associated volumes
    Call number: 11/M 93.0253/2
    In: Rock-forming minerals
    Type of Medium: Monograph available for loan
    Pages: 668 S.
    Edition: 2nd ed.
    ISBN: 0582465222
    Classification:
    Mineralogy
    Language: English
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  • 68
    Monograph available for loan
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    New York [u.a.] : Springer
    Call number: G 7858 ; M 93.0153
    Type of Medium: Monograph available for loan
    Pages: XIII, 295 S.
    ISBN: 0387903690
    Language: English
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  • 69
    Call number: M 93.0204
    Type of Medium: Monograph available for loan
    Pages: 339 S. : graph. Darst.
    ISBN: 0912890088
    Language: English
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  • 70
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    Amsterdam [u.a.] : Elsevier
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    Call number: 9/M 93.0003
    In: Developments in economic geology
    Type of Medium: Monograph available for loan
    Pages: XI, 543 S.
    ISBN: 0444418059
    Series Statement: Developments in economic geology 11
    Language: English
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  • 71
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    Amsterdam [u.a.] : Elsevier
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    Call number: 11/M 93.0094/5
    In: Handbook of strata-bound and stratiform ore deposits ; part II
    Type of Medium: Monograph available for loan
    Pages: XI, 319 S.
    ISBN: 0444414053
    Language: English
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  • 72
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    Amsterdam [u.a.] : Elsevier
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    Call number: 11/MR 90.0991 ; M 93.0094/4
    In: Handbook of strata-bound and stratiform ore deposits ; part I
    Type of Medium: Monograph available for loan
    Pages: X, 429 S.
    ISBN: 0444414045
    Language: English
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  • 73
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    Hannover : Bundesanstalt für Geowissenschaften und Rohstoffe
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    Call number: 9882/I ; M 93.0064/1
    In: The iron ore deposits of Europe and adjacent areas
    Type of Medium: Monograph available for loan
    Pages: 418 S. : graph. Darst.
    Language: English
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  • 74
    Call number: 12222 ; M 93.0039/1
    In: Proceedings of the Second International Kimberlite Conference
    Type of Medium: Monograph available for loan
    Pages: 399 S. : graph. Darst.
    ISBN: 087590212X
    Language: English
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  • 75
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    Berlin [u.a.] : Springer
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    Call number: 10/M 93.0251A/6
    In: Handbook of geochemistry
    Type of Medium: Monograph available for loan
    Pages: Losebl.-Ausg.
    Language: English
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  • 76
    Call number: M 93.0039/2
    In: Proceedings of the Second International Kimberlite Conference
    Type of Medium: Monograph available for loan
    Pages: 432 S.
    ISBN: 0875902138
    Language: English
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  • 77
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/27
    In: CRREL Report, 78-27
    Description / Table of Contents: Uniaxial compression and tension tests were conducted on polycrystalline snow-ice to determine the effect of temperature on its strength. Test temperatures ranged from -O.1C to -54C. Two machine speeds, 0.847 mm/s and84.7 mm/s were used for the constant displacement rate tests. The compressive strength at -54C was about oneorder of magnitude higher than at -0.1C. The tensile strength at -18C was about 20% higher than at 0.1C. The initial tangent and 50% strength moduli are given for the compression tests, while the secant modulus to failure is given for the tension tests.The mode of fracture is discussed and the test results are compared with data from other investigations.
    Type of Medium: Series available for loan
    Pages: iii, 22 Seiten , Illustrationen
    Series Statement: CRREL Report 78-27
    Language: English
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  • 78
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/21
    In: CRREL Report, 78-21
    Description / Table of Contents: This study investigates the possibility of providing estimates of the time of occurrence and length of the freezing season for any location in East and West Germany by using the average Januavy air temperature (AJ AT) as an index. The results indicate that reliable values of the mean freezing index can be obtained from the AJAT relationships which are developed for Germany. This association is further verified using data from the northeastern part of the U.S., and the AJ AT is then used to determine the average starting and ending dates (and hence the probable length) of the freezing season for stations in Germany. The AJ AT and the average dates of snowfall occurrence for numerous locations in the U.S. and Germany are also correlated. Interrelationships between these parameters and the average number of days with snow on the ground for stations up to 3000 m in elevation in Germany are examined. A detailed AJ AT map for East and West Germany, in which data from 134 stations, latitude, altitude and regional influences are considered, is developed in order to make the relationships usable. A historical review of the literature on snow studies in Germany and a brief discussion of snow-cover interpretation by satellite photography are included
    Type of Medium: Series available for loan
    Pages: v, 48 Seiten , Illustrationen , 1 Karte
    Series Statement: CRREL Report 78-21
    Language: English
    Note: CONTENTS Abstract Preface Introduction Historical literature review Relationships between midwinter temperature and freezing season Mean freezing index 4 Average January air temperature U.S. comparative study Correlation of AJAT and duration of freezing season Relationships between average January air temperature and snow conditions U.S. relationships German relationships Mapping of average January air temperatures Analysis of observed AJ AT data Development of detailed maps Application and discussion Examples Influence of vegetation Literature cited Appendix A. interpretation of snow cover by satellite Appendix B. Contour, station elevation and Aj AT maps for East and West Germany
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  • 79
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/10
    In: CRREL Report, 78-10
    Description / Table of Contents: The compressibility of wet snow is described in terms of pressure melting and nonlinear viscous deformation at grain contacts. The results of experiments with different salinities and liquid water contents are compared with computed densities. The decreasing compressibility of wet snow with increasing salinity and decreasing liquid content is quantified and explained. Simultaneous particle growth and the doubly charged layer at phase boundaries are included in the model. The results show that the density of wet snow increases approximately as a power of time but is highly dependent on the stress, initial particle size, liquid water content, and ionic impurity content of the snow.
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    Pages: vi, 23 Seiten , Illustrationen
    Series Statement: CRREL Report 78-10
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Experimental procedure Grain growth Stressed particle contacts Fluid pressure Packing geometry Temperature distribution and heat flow Fluid and impurity flows Results The liquid film Conclusions Literature cited
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  • 80
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/17
    In: CRREL Report, 78-17
    Description / Table of Contents: Abstract: This investigation utilized historical and recent aerial photographs and satellite imagery in 1) estimating changes in positions of the high-water line and sea cliff break and base, in rates of accretion and/or erosion, and in volumes of transported sediment, and 2) providing a preliminary evaluation of the direction of littoral transport along the outer Cape Cod coast. Using aerial photographs acquired in 1938, 1952, 1971 and 1974 with manual photointerpretation techniques, changes in the distances from selected reference points to the cliff break, cliff base and the high-water line were measured. LANDSAT-1 and -2 imagery acquired from 1 September 1972 to 28 May 1975 was evaluated for use in determining the directions of littoral transport that are active the predominant amount of time. Although the imagery has been very useful for this purpose at other locations, it proved to be useless along the outer shore of Cape Cod. Largest net migrations of the high water line from 1938 to 1974 occurred in the northern and southern portions of this coast. The northern maximum high water line was 321.4 ft, the southern was 1794.6 ft. The central portion of the coast was generally more stable with changes varying from 6.8 to 157.6 ft. Cliff-base recession rates varied from 0.4 to 7.3 ft/yr. Maximum estimated net volume of sediment deposited per linear foot of beach from 1938 to 1974 was 334 yd^3 (based on 2 yd^3/ft of recession or accretion); maximum eroded was 914 yd^3. Changes in the configuration of spits were used to evaluate directions of littoral transport since suspended sediment concentrations were generally not sufficient to act as natural tracers of surface currents. Based on the literature and a determination of the portion of the coast perpendicular to the direction of dominant wave approach, the location of the nodal zone for predominant littoral directions of drift probably shifts between the area near Spectacle Pond and North Truro Air Force Station. This investigation has illustrated a photo interpretation technique that is useful in performing a reconnaissance of coastal change. The data obtained from this method can be used to supplement those acquired by ground surveys and are valid as first approximations for planning subsequent, more detailed surveys.
    Type of Medium: Series available for loan
    Pages: vi, 49 Seiten , Illustrationen
    Series Statement: CRREL Report 78-17
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors: U.S. customary to metric units of measurement Introduction Background Previous investigations Analytical procedures Results and discussion Shoreline changes: High-water line Shoreline changes: Cliff recession Volumetric changes Nodal zone location and direction of littoral transport Error evaluation Summary and conclusions Future research Selected bibliography Appendix A: Maps of shoreline with overlays for 1938, 1952, 1971 and 1974 Appendix B: Supplementary data for estimating shoreline change
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  • 81
    Call number: ZSP-201-78/9
    In: CRREL Report, 78-9
    Description / Table of Contents: Large, simply supported beams of temperate lake ice were found, generally, to yield significantly higher flexural strengths than the same beams tested in the cantilever mode. Data support the view that a significant stress concentration may exist at the fixed corners of the cantilever beams. Maximum effects are experienced with beams of cold, brittle ice substantially free of structural imperfections; for this kind of ice the strength difference factor, here attributed to the effect of stress concentrations, may exceed 2.0; that is, simply supported beams test a factor of 2 or more stronger than the same beams tested in the cantilever mode. In ice that has undergone extensive thermal degradation, the stress concentration effect may be eliminated entirely. Simply supported beams generally yield higher strengths when the top surfaces are placed in tension. This behavior is attributed to differences in ice type; the fine-grained, crack-free top layer of snow-ice which constituted up to 50% of the ice cover in the current series of tests usually reacted more strongly in tension than the coarse-grained crack-prone bottom lake ice.
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    Pages: iv, 14 Seiten , Illustrationen
    Series Statement: CRREL Report 78-9
    Language: English
    Note: CONTENTS Abstract Preface Introduction Test sites and ice cover properties Beam testing Results Discussion Conclusions Literature cited
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  • 82
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-78/3
    In: CRREL Report, 78-3
    Description / Table of Contents: The mathematical theory for the bearing capacity of river ice for vehicles is presented. The floating ice sheet is assumed to have simple supports at the shore line. Solutions are presented for loads uniformly distributed over circular and rectangular areas. Numerical evaluations are made for a number of vehicles and the results presented in graphical form
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    Pages: iii, 22 Seiten , Illustrationen
    Series Statement: CRREL Report 78-3
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors: U.S. customary to metric (SI) units of measurement Introduction Theory Solution by superposition Solution by Fourier integral Solution by Fourier series Application and results Literature cited Appendix A: Bearing capacity of river ice for military vehicles Appendix B: Vehicle specifications Appendix C: Fortran II computer program
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  • 83
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-77/21
    In: CRREL Report, 77-21
    Description / Table of Contents: Cold weather limits the successful application of built-up roofing, but often a roof installation must be completed late in the fall or in the winter. The loose-laid protected membrane roof with a synthetic sheet membrane can be installed in the middle of the winter with complete reliability. A synthetic membrane is traditionally more expensive than built-up roofing (rising crude oil prices, however, have reversed this condition), but it has two special features besides its suitability for winter installation: it can be placed on a damp deck, if necessary, and, being losse-laid, it does not split because of deck movement. This report documents information on the installation of two roofs in Anchorage, Alaska, during January and February 1972, including a discussion of the necessary snow removal from the bare deck and the use of portable shelters for preparing the lap joints between sheets during very cold weather. The winter installation caused no special construction problems and the advantages of the synthetic membrane make it an attractive alternative to built-up roofing. The cost of loose-laid protected membrane roofs in Alaska was, in 1972, nearly $300 per square ($28/sq.m), including insulation. Prices are rising as labor costs rise and as more insulation is specified.
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    Pages: 5 Seiten , Illustrationen
    Series Statement: CRREL Report 77-21
    Language: English
    Note: CONTENTS Abstract Preface Introduction The protected membrane roof Winter construction considerations Construction costs Conclusion
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  • 84
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/8
    In: CRREL Report, 78-8
    Description / Table of Contents: The interaction of a 5.1-GHz transverse electric surface wave with a dielectric slab is experimentally investigated. The wave is initially supported by a dielectric substrate resting upon a metallic ground-plane. A slab, made of the same dielectric material as the substrate and variable in height, is then placed upon the waveguide. The results for a small slab sitting on the substrate showed that the discontinuity was a very inefficient launcher of reflected surface waves. Investigations of these reflections with a trough waveguide showed that, for values of slab height comparable to the exponential decay height of the surface wave, the reflections remain very small. However, as the slab height is increased beyond the decay height, the reflected amplitude approaches the theoretical value for a plane wave reflected from the interface between air and the same dielectric. The results are applicable to surface wave methods of microwave deicing of wings and helicopter rotors.
    Type of Medium: Series available for loan
    Pages: v, 16 Seiten , Illustrationen
    Series Statement: CRREL Report 78-8
    Language: English
    Note: CONTENTS Abstract Preface Summary Introduction Background Objective and procedure Theory of plane surface waves Waveguide design and characteristics Physical apparatus Frequency characteristics Spatial distribution of Ey above the guide Guide wave length Surface wave interaction with a slab discontinuity Experiments with a trough Discussion and conclusions Literature cited
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  • 85
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/5
    In: CRREL Report, 78-5
    Description / Table of Contents: The viscoelastic deflection of an infinite floating ice plate subjected to a circular load was solved, assuming the Maxwell-Voigt type four-element model. An effective method of numerical integration of the solution integrals was developed, of which each integrand contains a product of Bessel functions extending to infinity. The theoretical curve was fitted to the field data, but the material constants thus found varied with time and location.
    Type of Medium: Series available for loan
    Pages: iii, 32 Seiten , Illustrationen
    Series Statement: CRREL Report 78-5
    Language: English
    Note: CONTENTS Abstract Preface Introduction The problem The solution Method of numerical integration Ramp/steady loading Curve fitting to time lapse deflections Asymptotic deflection Deflection profiles Acknowledgement Literature cited Appendix I. Analytical background Appendix II. Computer programs, ramp time profiles and steady time profiles
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  • 86
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-78/6
    In: CRREL Report, 78-6
    Description / Table of Contents: A new freezing mechanism, called segregation freezing, is proposed to explain the generation of the suction force that draws pore water up to the freezing surface of a growing ice lens. The segregation freezing temperature is derived by applying thermodynamics to a soil mechanics concept that distinguishes the effective pressure from the neutral pressure. The frost-heaving pressure is formulated in the solution of the differential equations of the simultaneous flow of heat and water, of which the segregation freezing temperature is one of the boundary conditions.
    Type of Medium: Series available for loan
    Pages: iv, 13 Seiten , Illustrationen
    Series Statement: CRREL Report 78-6
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Segregation freezing Analysis Heat conduction in the nascent ice layer Water flow in the unfrozen soil Heat transfer in the unfrozen soil Energy balance at the segregation-freezing front Numerical computation Literature cited Appendix A. Essence of Portnov’s method Appendix B. Frost-heaving without air available
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  • 87
    Monograph available for loan
    Monograph available for loan
    Wageningen : Centre for Agricultural Publ. and Documentation
    Call number: PIK M 370-91-0161 ; MOP 44707 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 175 Seiten , Illustrationen
    Edition: 2., revised and extended edition
    ISBN: 9022006522
    Series Statement: Simulation monographs
    Language: English
    Note: Contents 1 Introduction 1.1 Purpose 1.2 Some terminology 1.3 Electrical analogues 1.4 State determined systems 1.5 Simulation languages 2 Exponential growth 2.1 Analytical and numerical integration 2.2 Simulation 2.3 Time constant and time interval of integration 2.4 Integration method and time interval 3 The growth of yeast 3.1 Description of the system 3.2 Relational diagrams 3.3 Simulation 3.4 Logistic growth 4 Interference of plants 4.1 Replacement series 4.2 Density of sowing 4.3 Simulation of plant interference 4.4 Further modelling aspects 4.4.1 The INDEX and MACRO feature 4.4.2 The INITIAL and DYNAMIC section 5 Growth and competition of Paramecium 5.1 Description of the system 5.2 A simulation program 5.3 Preliminary estimation of parameters 5.4 Final determination of parameters 5.5 Stochastic aspects 5.6 The programming of probability functions 6 Modelling of development, dispersion and diffusion 6.1 Introduction 6.2 Physiological age and development stage 6.3 Demographic models 6.3.1 Age-classes 6.3.2 Errors of approximation 6.3.3 The matrix method 6.4 Germination models 6.4.1 Boxcar train without dispersion 6.4.2 Boxcar train with constant relative dispersion 6.4.3 Boxcar train with controlled dispersion 6.4.4 Refinements 6.5 The flow of heat in soils 7 Growth and development of Helminthosporium maydis 7.1 Introduction 7.2 The weather 7.3 Appearance and growth of lesions 7.4 Sporophore or stalk formation 7.5 Sporulation of green stalks 7.6 Sporulation of dried stalks 7.7 Dispersal of spores 7.8 Germination of spores and penetration of germtubes 7.9 Timing, initialization and output organization 7.10 Results and sensitivity analyses 8 Population models for fruit-tree red spider miteand predatory mites 8.1 Fruit-tree red spider mite 8.2 Predatory mite, Amblyseius potentillae 8.3 Relations between predator and prey 8.4 Preference as a competitive process 8.5 Verification 9 Solutions of the exercises References Appendix A Appendix B Index
    Location: A 18 - must be ordered
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  • 88
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-77/28
    In: CRREL Report, 77-28
    Description / Table of Contents: Tests were conducted to assess the extent of surface degradation resulting from the application of non-chloride deicing chemicals on three types of airfield pavements. The chemicals tested were proprietary mixtures of urea, formamide, and ethylene glycol; sodium chloride, distilled water, and dry specimens were used as controls and for comparison. Pavements included new and old specimens of open-graded asphaltic concrete and old specimens of dense-graded asphaltic concrete. Portland cement concrete specimens used were new and old, with and without air-entrainment. New and old tar rubber concrete specimens were also tested. Samples were subjected to up to 60 freeze-thaw cycles with deicing chemicals flooding their upper surface. Each specimen was rated on a scale of 0-5 after every five freeze-thaw cycles. All PCC specimens showed some surface degradation, whereas the dense- and open-graded asphaltic concretes were largely unaffected.
    Type of Medium: Series available for loan
    Pages: v, 16 Seiten , Illustrationen
    Series Statement: CRREL Report 77-28
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors: U.S. customary to metric (SI) Units of measurement Introduction Test procedure Pavement types Deicing chemicals Description of tests Discussion Literature cited Appendix A: Test results Appendix B: Portland cement concrete materials data
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  • 89
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-76/14
    In: CRREL Report, 76-14
    Description / Table of Contents: At the height of warm weather in Alaska in 1975, temperature measurements were made to determine the extent of the thermal impact on French Creek due to a condenser cooling water impact from the Eielson AFB Power plant. Water temperature measurements during a two-day period failed to show any significant thermal impact on the water in French Creek. It was concluded that no thermal pollution exists due to this warm water input at the volumes and conditions that presently exist.
    Type of Medium: Series available for loan
    Pages: ii, 5 Seiten , Illustrationen
    Series Statement: CRREL Report 76-14
    Language: English
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  • 90
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-76/22
    In: CRREL Report, 76-22
    Description / Table of Contents: Several membrane materials used or considered for MESL (membrane-enveloped soil layer) utilization of poor soils in road construction have been tested for cold effect on puncture and stiffness. PE (polyethylene) film was also tested for solvent soak effects. A simple blunt needle apparatus was devised for puncture testing. For plastic films (mainly PE), both puncture resistance and stiffness increase at low temperature (0 F, -18 C). For non-woven, spunbonded fabrics these properties are little affected by cold. For both non-wovens and PE film, puncture and bending strengths increase linearly with weight or thickness. The slope is steeper for the non-wovens, which generally are stronger on a per unit weight basis. PE film soaked in a hydrocarbon solvent swelled approximately 17% and lost about 30-40% its puncture strength. These effects are apparently reversible upon drying. Consideration has been given to sealing and patching requirements and to the drying of sealant liquids when adhering film to film. Also considered have been pos­sible slippage related to the reported low angle of friction of plastic films in soil and the possibility of lamination for improved membrane properties.
    Type of Medium: Series available for loan
    Pages: v, 60 Seiten , Illustrationen
    Series Statement: CRREL Report 76-22
    Language: English
    Note: CONTENTS Page Abstract Preface Introduction Experimental Materials Apparatus Procedure Results Discussion PE solvent soak and swelling PE solvent soak and puncture Film puncture rate effect Bending orientation Comparative tables and graphs Puncture and temperature Bending and temperature Test result vs thickness and weight General considerations Conclusion and recommendations Literature cited Appendix Detailed data tables Denier explanation
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  • 91
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-76/5
    In: CRREL Report, 76-5
    Description / Table of Contents: Griffith, and later Babel, have previously developed a tensile fracture criterion for a two-dimensional state of stress. This theory is extended to the compression-compression region. From this theory the angle of fracture is developed. The theory is extended conceptually to three dimensions. Triaxial test data by Haynes for snow-ice are shown in this three-dimensional fracture theory. The test data are slightly less than those predicted when the void in the snow-ice is spherical.
    Type of Medium: Series available for loan
    Pages: iii, 9 Seiten , Illustrationen
    Series Statement: CRREL Report 76-5
    Language: English
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  • 92
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-76/11
    In: CRREL Report, 76-11
    Description / Table of Contents: Water flow through the unsaturated portion of a snowpack is calculated using various assumptions about radiation penetration into the snow. The results show that for the purposes of hydrologic forecasting, it is sufficiently ac­curate to assume that all of the radiation absorption occurs at the surface. The error in the calculation of flow is largest for very shallow snowpacks, but this error is reduced by radiation absorption at the base of the snow and by the routing of meltwater through the saturated basal layer.
    Type of Medium: Series available for loan
    Pages: v, 9 Seiten , Illustrationen
    Series Statement: CRREL Report 76-11
    Language: English
    Note: CONTENTS Abstract Preface Summary Conversion factors for U.S. customary and SI units Introduction Theory Examples Discussion Literature cited
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  • 93
    Call number: ZSP-201-76/18
    In: CRREL Report, 76-18
    Description / Table of Contents: Three surface elevation and ice thickness profiles obtained during the 1972 Arctic Ice Dynamics Joint Experiment on a multiyear ice floe were analyzed to obtain relationships between surface elevation, thickness and physical properties of the ice. It was found that for ice freeboards from 0.10 m to 1.05 m above sea level a linear relationship between ice density and freeboard could be postulated. The equation for the regression line is: Ice density = -194f' + 974 kg/cu m where f' is the ice freeboard plus snow depth in ice equivalent at the point in question. This statistical relationship is consistent with observed physical properties, which indicate that as the ice freeboard increases, ice salinity decreases and the higher freeboard or thicker ice therefore decreases in density. Using this variable density with freeboard relationship, a model was constructed to predict ice thickness, given ice freeboard and snow depth alone. This prediction is desirable, since snow depth and freeboard are relatively easy to obtain, whereas ice thickness can usually be obtained only by drilling through the ice. The model was compared with two other models. It was found that the variable density prediction model gave the best approximation to observed ice thickness, with a standard error between the measured and predicted value of about 0.4 m, compared with errors from 50 to 100% higher for the other two models.
    Type of Medium: Series available for loan
    Pages: v, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 76-18
    Language: English
    Note: Contents Abstract Preface Summary Introduction Previous work Results Models for predicting thickness from ice freeboard Comparison between measured and predicted thicknesses Spectral behavior of measured and predicted profiles Comparisons of ice thickness using airborne laser profilometry Conclusions Literature cited Appendix A: Misgivings on isostatic imbalance as a mechanism for sea ice cracking
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  • 94
    Series available for loan
    Series available for loan
    Koebenhavn : Grønlands Geol. Undersøgelse
    Associated volumes
    Call number: ZSP-683-76
    In: Rapport = Report
    Description / Table of Contents: Airborne gamma-spectrometry and subsequent radiometric field investigations in central East Greenland have revealed a number of areas of above average radioactivity and a number of radioactive anomalies within these areas. These areas can be divided geologically into: pre-Caledonian crystalline basement, late and post-Caledonian plutonic rocks, Tertiary plutons and areas of intensive faulting and shearing. Areas bordering continental sedimentary formations are envisaged as potential host rocks for epigenetic uranium mineralization. The spectrometer system applied, with the detector volume of 3.7 litres, does not completely satisfy a quantitative evaluation of the spectrometric data recorded and a distinction between major rock units is only possible from the gross channel count rates.
    Type of Medium: Series available for loan
    Pages: 44 S. : Ill., graph. Darst., Kt.
    Series Statement: The Geological Survey of Greenland : Report 76
    Language: English
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  • 95
    Monograph available for loan
    Monograph available for loan
    Falls Church : American Geological Inst.
    Call number: M 93.0008
    Type of Medium: Monograph available for loan
    Pages: 79 S.
    ISBN: 0913312134
    Language: English
    Location: Upper compact magazine
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  • 96
    Monograph available for loan
    Monograph available for loan
    Wilmette : Applied Publishing Ltd.
    Call number: M 93.0018 ; M 93.0018
    Type of Medium: Monograph available for loan
    Pages: X, 287 S. : Ill.
    ISBN: 0915834030
    Uniform Title: Geochimiceskie methody poiskov ...
    Language: English
    Location: Upper compact magazine
    Location: Upper compact magazine
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  • 97
    Monograph available for loan
    Monograph available for loan
    New York [u.a.] : Wiley
    Call number: M 93.0228
    Type of Medium: Monograph available for loan
    Pages: VIII, 593 S. : Ill., graph. Darst.
    Edition: 3. ed.
    ISBN: 0471017698
    Language: English
    Location: Upper compact magazine
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  • 98
    Call number: M 93.0116
    Type of Medium: Monograph available for loan
    Pages: IX, 619 S. : Ill.
    ISBN: 0471014885
    Language: English
    Location: Upper compact magazine
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  • 99
    Monograph available for loan
    Monograph available for loan
    Amsterdam [u.a.] : Elsevier
    Associated volumes
    Call number: 9/M 93.0208/7
    In: Developments in economic geology
    Type of Medium: Monograph available for loan
    Pages: XI, 280 S. : Ill., graph. Darst.
    ISBN: 044441567X
    Series Statement: Developments in economic geology 7
    Language: English
    Location: Reading room
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  • 100
    Monograph available for loan
    Monograph available for loan
    London [u.a.] : Acad. Press
    Call number: G 7746 ; M 93.0213
    Type of Medium: Monograph available for loan
    Pages: XIV, 720 S. : Ill., graph. Darst.
    Edition: 2. ed.
    ISBN: 0127829601
    Language: English
    Location: Upper compact magazine
    Location: Upper compact magazine
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