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  • 1
    Monographie ausleihbar
    Monographie ausleihbar
    College Station, Tex. : Stata Press
    Signatur: PIK M 311-15-89488
    Materialart: Monographie ausleihbar
    Seiten: XXXI, 379 S. , graph. Darst.
    ISBN: 1597180475 (pbk.) , 9781597180474 (pbk.)
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Monographie ausleihbar
    Monographie ausleihbar
    Oxford [u.a.] : Oxford University Press
    Signatur: PIK B 100-18-91420
    Materialart: Monographie ausleihbar
    Seiten: XXVII, 531 Seiten , Diagramme
    Ausgabe: 3. edition
    ISBN: 9780199234783
    Sprache: Englisch
    Anmerkung: Contents: 1: Market performance: possibilities and prescriptions ; 2: Externalities ; 3: Public goods ; 4: Collective decision-making: searching for the 'public interest' ; 5: Rent-seeking, public provision and the 'return to the market' ; 6: Evaluation of public expenditure: cost-benefit analysis ; 7: Tax theory: the basic concepts ; 8: Tax evasion and the black economy ; 9: Income (re)distribution ; 10: Central government ; 11: Public choice aspects of macroeconomic policies ; 12: Local government 13: International issues and global goals ; 14: Optimal taxation ; 15: 'Behavioural public finance' and the role of the public sector ; 16: Public sector failure and public expenditure growth
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge [u.a.] : Cambridge Univ. Press
    Signatur: PIK B 190-18-91952
    Materialart: Monographie ausleihbar
    Seiten: VIII, 620 Seiten , Diagramme
    ISBN: 9780521732116 (pbk.) , 9780521518215 (hardback)
    Sprache: Englisch
    Anmerkung: Contents: Introduction to federalism and the role of governments in federal economies -- The decentralization of government authority -- Expenditure assignment -- Revenue assignment -- Natural resources ownership and management in a federal system -- Local governance in theory -- Local governance in practice -- Revenue sharing -- The principles of intergovernmental transfers -- The practice of intergovernmental fiscal transfers -- Finance and provision of health and education -- Finance and provision of infrastructure -- Poverty alleviation in federations -- Fiscal federalism and macroeconomic governance -- Inter-regional competition and policies for regional cohesion and convergence -- Decentralized governance and corruption -- Adapting to a changing world..
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Monographie ausleihbar
    Monographie ausleihbar
    Amsterdam : International Bureau of Fiscal Documentation
    Signatur: PIK B 130-19-92672
    Materialart: Monographie ausleihbar
    Seiten: VIII, 174; VIII, 64 S. , Ill.
    ISBN: 9789087220549
    Sprache: Englisch
    Anmerkung: Enthält zwei Werke. Titel des zweiten Werkes: Taxes through the ages : a pictorial history / Ferdinand H. M. Grapperhaus
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Monographie ausleihbar
    Monographie ausleihbar
    Irvine, Calif. : Quantitative Micro Software
    Signatur: PIK M 034-16-89633
    Materialart: Monographie ausleihbar
    Seiten: VI, 420 S. , Abb.
    Ausgabe: 2. ed.
    ISBN: 9781880411445
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Monographie ausleihbar
    Monographie ausleihbar
    Harpenden, Herts : VOCAT International Ltd.
    Signatur: PIK B 190-18-91631
    Materialart: Monographie ausleihbar
    Seiten: 216 Seiten , graph. Darst.
    ISBN: 9780956297518
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Signatur: PIK P 129-16-89726
    Materialart: Monographie ausleihbar
    Seiten: XVIII, 212 S. , Ill., graph. Darst.
    ISBN: 9783899587982 , 9783899587999
    Serie: Erneuerbare Energien und Energieeffizienz 14
    Sprache: Englisch
    Anmerkung: Univ. Kassel, Diss., 2009
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Signatur: PIK E 830-19-92967
    Materialart: Monographie ausleihbar
    Seiten: 361 Seiten , Illustrationen, Diagramme
    ISBN: 9789967043435
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Monographie ausleihbar
    Monographie ausleihbar
    Dordrecht : Springer
    Signatur: PIK B 020-20-94151
    Materialart: Monographie ausleihbar
    Seiten: XXV, 732 Seiten
    ISBN: 9781852333768 , 9781447125242
    Serie: Springer Finance
    Sprache: Englisch
    Anmerkung: Contents: Continuous Path Processes ; Continuous-Path Random Processes: Mathematical Prerequisites ; Basic Concepts and Examples in Finance ; Hitting Times: A Mix of Mathematics and Finance ; Complements on Brownian Motion ; Complements on Continuous Path Processes ; A Special Family of Diffusions: Bessel Processes ; Jump Processes ; Default Risk: An Enlargement of Filtration Approach ; Poisson Processes and Ruin Theory ; General Processes: Mathematical Facts ; Mixed Processes ; Lévy Processes
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Signatur: PIK N 079 21-94664
    Materialart: Monographie ausleihbar
    Seiten: 1 Online-Ressource (xxii, 745 Seiten) , Illustrationen, Diagramme
    Ausgabe: Second edition
    ISBN: 9780387848570
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 11
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge [u.a.] : MIT Press
    Signatur: PIK B 100-11-0051
    Beschreibung / Inhaltsverzeichnis: Contents: Introduction ; The era of ruptures ; The new world economy ; Is there a European social model? ; Conclusion
    Materialart: Monographie ausleihbar
    Seiten: 106 S.
    ISBN: 9780262033831
    Originaltitel: Trois leçons sur la société post-industrielle
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 12
    Monographie ausleihbar
    Monographie ausleihbar
    Paris : OECD
    Standort Signatur Erwartet Verfügbarkeit
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  • 13
    Monographie ausleihbar
    Berlin : Cornelsen
    Signatur: PIK B 531-21-94397
    Schlagwort(e): Mitarbeitergespräch
    Beschreibung / Inhaltsverzeichnis: Konsequent zweisprachig und praxisnah. Eine wirkungsvolle Hilfe für alle, die international agieren: Die Reihe 'Training International' stellt wichtige Kompetenzen kompakt und zweisprachig dar. Auf der linken Seite steht jeweils der deutsche Text, rechts die gleichen Inhalte in internationalem Business English. So kann der Leser sich gezielt Wissen aneignen - auch kurzfristig für konkrete Anforderungen - und gleichzeitig fast beiläufig seine Sprachkenntnisse erweitern. Außerdem geben die Bände interkulturelle Tipps und liefern Handlungsvorschläge. Die Themen wurden nach Beratung mit Personal- und Bildungsabteilungen von Unternehmen bedarfsgerecht ausgewählt. Mitarbeitergespräche unterstützen die zielorientierte und partnerschaftliche Führung. Das Buch behandelt alle relevanten Aspekte des Themas, darunter Gesprächsarten, -techniken und auch -störungen. Es liefert Tipps, Gesprächsleitfäden sowie kompaktes Hintergrundwissen.
    Materialart: Monographie ausleihbar
    Seiten: 199 S. , graph. Darst. , 22 cm
    Ausgabe: 1. Aufl.
    ISBN: 9783589239542 (kart.) , 3589239549 (kart.)
    Serie: Training international
    URL: Cover
    Sprache: Deutsch , Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 14
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge : Cambridge University Press
    Signatur: PIK 24-95567
    Materialart: Monographie ausleihbar
    Seiten: XVI, 558 S , graph. Darst
    Ausgabe: Repr.
    ISBN: 0521588707 , 9780521588706 , 9780521380430
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 15
    Monographie ausleihbar
    Monographie ausleihbar
    Dordrecht : Springer Science + Business Media B.V
    Signatur: PIK N 456-16-90276
    Beschreibung / Inhaltsverzeichnis: This textbook describes various physical, radiative, dynamical and chemical processes involved in the coupling between the Stratosphere and Troposphere. This textbook is intended for graduate students in middle atmosphere stratospheric physics, dynamic and atmospheric science courses and will be useful to all research workers in meteorology, aeronomy, atmospheric physics, atmospheric chemistry and environmental sciences. Current areas of interest, such as Antarctic ozone hole, global warming effects on stratospheric cooling are also addressed. Stratosphere troposphere exchange, transport processes in the upper troposphere and lower stratosphere and the role of stratosphere on tropospheric weather systems are presented. The information provided in the textbook will have broad applicability in other branches of atmospheric science, and will be of interest to those studying such areas as climate change, extreme weather events, and potential for the prediction of tropospheric weather systems.
    Materialart: Monographie ausleihbar
    Seiten: XVII, 416 Seiten , Illustrationen, Diagramme
    ISBN: 9781402082160 , 9781402082177
    Sprache: Englisch
    Anmerkung: ""Preface""; ""Acknowledgments""; ""Contents""; ""Chapter 1 Structure and Composition of the Lower and Middle Atmosphere""; ""Chapter 2 Radiative Processes in the Lower and Middle Atmosphere""; ""Chapter 3 Dynamics of the Troposphere and Stratosphere""; ""Chapter 4 Waves in the Troposphere and Stratosphere""; ""Chapter 5 Chemical Processes in the Stratosphere and Troposphere""; ""Chapter 6 Stratospheric Ozone Depletion and Antarctic Ozone Hole""; ""Chapter 7 Transport Processes in the Stratosphere and Troposphere""; ""Chapter 8 Stratosphere�Troposphere Exchange"". , ""Chapter 9 Stratospheric Influence on Tropospheric Weather and Climate""""Acronyms""; ""List of Symbols""; ""Table of Physical Constants""; ""Answers to Selected Problems""; ""Index"".
    Standort Signatur Erwartet Verfügbarkeit
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  • 16
    Monographie ausleihbar
    Monographie ausleihbar
    Princeton, NJ [u.a.] : Princeton Univ. Press
    Signatur: PIK D 020-17-90700
    Materialart: Monographie ausleihbar
    Seiten: XII, 236 S. , graph. Darst.
    ISBN: 9780691138978 (pbk.) , 0691119988 (hardcover) , 9780691119984 (hardcover)
    Serie: Princeton studies in American politics
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 17
    Monographie ausleihbar
    Monographie ausleihbar
    Carlton, Victoria : Melbourne University Press
    Signatur: PIK N 076-19-93080
    Materialart: Monographie ausleihbar
    Seiten: VIII, 302 Seiten , 20 cm.
    ISBN: 9780522855234 (pbk.)
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 18
    Monographie ausleihbar
    Monographie ausleihbar
    Oxford [u.a.] : Oxford Univ. Press
    Signatur: PIK D 025-16-89933 ; IASS 19.89933
    Materialart: Monographie ausleihbar
    Seiten: XIII, 772 Seiten , 26 cm
    ISBN: 019921932X ((hbk)acidfree paper) , 9780199219322 ((hbk)acidfree paper) , 019958558X ((pbk)) , 9780199585588 ((pbk))
    Serie: The Oxford handbooks of political science
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Zweigbibliothek: RIFS Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 19
    Signatur: PIK N 454-19-92142
    Materialart: Monographie ausleihbar
    Seiten: VIII, 282 Seiten , Illustrationen, Diagramme, Karten
    ISBN: 9780520253056
    Sprache: Englisch
    Anmerkung: Contents: The place of glaciers in natural and cultural landscapes / Ben Orlove, Ellen Wiegandt and Brian h. Luckman -- pt. 1. Societal perceptions: cultures and institutions. Changing views of changing glaciers / Wilfred Haeberli -- Challenges of living with glaciers in the Swiss Alps, past and present / Ellen Wiegandt and Ralph Lugon -- Environment, history, and culture as influences on perceptions of glacier dynamics: the case of Mt. Shasta / Barbara Wolf and Ben Orlove -- Glacial hazards: perceiving and responding to threats in four world regions / Christian Huggel, Wilfried Haeberli, and Andreas Kaab -- pt. 2. Scientific observations: measurement, monitoring and modeling. Two alpine glaciers over the past two centuries: a scientific view based on pictorial sources / Daniel Steiner, Heinz J. Zumbuhl, and Andreas Bauder -- Long-term observations of glaciers in Norway / Liss Andreassen...[et al.] -- Alpinewide distributed glacier mass balance modeling: a tool for assessing future glacier change / Frank Paul...[et al.] -- Modeling climate-change impacts on mountain glaciers and water resources in the central dry Andes / Javier Corripio...[et al.] -- pt. 3. Trends in natural landscapes: climate change. Glacier mass balance in the Northern U.S. and Canadian Rockies: paleo-perspectives and 20th century change / Emma Watson...[et al.] -- Glacier fluctuations in the European Alps, 1850-2000: an overview and spatio-temporal analysis of available data / Michael Zemp...[et al.] -- Tropical glaciers, climate change, and society: focus on Kilimanjaro (East Africa) / Thomas Molg...[et al.] -- pt. 4. Impacts on human landscapes: resources, hazards and cultural landscapes. New Zealand's glaciers: key national and global assets for science and society / John Hay and Tui Elliot -- The impact of mining on rock glaciers and glaciers: examples from Central Chile / Alexander Brenning -- Glacier changes and their impacts on mountain tourism: two case studies from the Italian Alps / Claudio Smiraglia...[et al.] -- Mama Cotacachi: history, local perceptions, and social impacts of climate change and glacier retreat in the Ecuadorian Andes / Robert E. Rhoades, Xavier Zapata Rios, and Jenny Aragundy Ochoa -- pt. 5. Responses: adaptation and accommodation. The politics of place: inhabiting and defending glacier hazard zones in Peru's Cordillera Blanca / Mark Carey -- Responses to glacier retreat in the context of development planning in Nepal / Shardul Agrawala -- Glaciers and efficient water use in Central Asia / Urs Luterbacher...[et al.] -- Research and development in mountain glaciers: an overview of institutions and organizations / Denis Knubel, Greg Greenwood, and Ellen Wiegandt
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 20
    Monographie ausleihbar
    Monographie ausleihbar
    Malden, Mass. [u.a.] : Blackwell
    Signatur: PIK B 020-16-89774
    Beschreibung / Inhaltsverzeichnis: The classic aide to econometric students worldwide is now in a new edition. Guide to Econometrics, 6th edition is designed to illuminate the logic of econometrics without formulas, providing intuition, skepticism, insights, humor, and practical advice. Designed for use in a range of courses, from undergraduate to graduate and PhD level. New chapters cover instrumental variables, computation considerations. Includes extensive information on GMM, nonparametrics, and an introduction to wavelets.
    Materialart: Monographie ausleihbar
    Seiten: XII, 585 S. , graph. Darst. , 26 cm
    Ausgabe: 6. ed.
    ISBN: 1405182571 (pbk.) , 9781405182577 (pbk.) , 140518258X (hardcover) , 9781405182584 (hardcover)
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 21
    Monographie ausleihbar
    Monographie ausleihbar
    Oxford [u.a.] : Oxford University Press
    Signatur: PIK B 010-20-93972
    Materialart: Monographie ausleihbar
    Seiten: X, 275 Seiten , Diagramme , 22 cm
    Ausgabe: 1. publ.
    ISBN: 9780199290444 (hbk.)
    Serie: The Lindahl lectures
    Sprache: Englisch
    Anmerkung: Contents: 1:Introduction ; 2:The Spatial Equilibrium Within the City ; 3:The Spatial Equilibrium Across ; 4:Agglomeration Economies ; 5:Urban Distress ; 6:Cities and Public Policy
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 22
    Monographie ausleihbar
    Monographie ausleihbar
    New York : Freeman
    Signatur: AWI A3-08-0023 ; PIK N 456-08-0279 ; PIK N 456-12-0032
    Materialart: Monographie ausleihbar
    Seiten: XX, 388 Seiten , Illustrationen
    Ausgabe: Second edition
    ISBN: 0716784904 , 9780716784906
    Sprache: Englisch
    Anmerkung: Contents Preface PART I Framework of Climate Science CHAPTER 1 Overview of Climate Science Climate and Climate Change 1-1 Geologic Time Tools of Climate Science: Temperature Scales 1-2 How This Book Is Organized Development of Climate Science 1-3 How Scientists Study Climate Change Overview of the Climate System 1-4 Components of the Climate System 1-5 Climate Forcing 1-6 Climate System Responses 1-7 Time Scales of Forcing Versus Response 1-8 Differing Response Rates and Climate-System Interactions 1-9 Feedbacks in the Climate System Climate Interactions and Feedbacks: Positive and Negative Feedbacks CHAPTER 2 Climate Archives, Data, and Models Climate Archives, Dating, and Resolution 2-1 Types of Archives 2-2 Dating Climate Records 2-3 Climatic Resolution Climatic Data 2-4 Biotic Data 2-5 Geological and Geochemical Data Climate Models 2-6 Physical Climate Models 2-7 Geochemical Models PART II Tectonic-Scale Climate Change CHAPTER 3 CO2and Long-Term Climate Greenhouse Worlds Faint Young Sun Paradox Carbon Exchanges Between Rocks and the Atmosphere 3-1 Volcanic Input of Carbon from Rocks to the Atmosphere 3-2 Removal of CO2 from the Atmosphere by Chemical Weathering Climatic Factors That Control Chemical Weathering Is Chemical Weathering Earth’s Thermostat? 3-3 Greenhouse Role of Water Vapor Is Life the Ultimate Control on Earth’s Thermostat? 3-4 Gaia Hypothesis Looking Deeper into Climate Science: Organic Carbon Subcycle Was There a “Thermostat Malfunction”? A Snowball Earth? CHAPTER Plate Tectonics and Long-Term Climate Plate Tectonics 4-1 Structure and Composition of Tectonic Plates 4-2 Evidence of Past Plate Motions Polar Position Hypothesis 4-3 Glaciations and Continental Positions Since 500 Myr Ago Modeling Climate on the Supercontinent Pangaea 4-4 Input to the Model Simulation of Climate on Pangaea Looking Deeper into Climate Science: Brief Glaciation 440 Myr Ago 4-5 Output from the Model Simulation of Climate on Pangaea Tectonic Control of CO2 Input: BLAG Spreading-Rate Hypothesis 4-6 Control of CO2 Input by Seafloor Spreading 4-7 Initial Evaluation of the BLAG Spreading Rate Hypothesis Tectonic Control of CO2Removal: Uplift-Weathering Hypothesis 4-8 Rock Exposure and Chemical Weathering 4-9 Case Study: The Wind River Basin of Wyoming 4-10 Uplift and Chemical Weathering 4-11 Case Study: Weathering in the Amazon Basin 4-12 Weathering: Both a Climate Forcing and a Feedback? CHAPTER 5 Greenhouse Climate What Explains the Warmth 100 Myr Ago? 5-1 Model Simulations of the Cretaceous Greenhouse 5-2 What Explains the Data-Model Mismatch? 5-3 Relevance of Past Greenhouse Climate to the Future Sea Level Changes and Climate 5-4 Causes of Tectonic-Scale Changes in Sea Level 5-5 Effect of Changes in Sea Level on Climate Looking Deeper into Climate Science: Calculating Changes in Sea Level Asteroid Impact Large and Abrupt Greenhouse Episode near 50 Myr Ago CHAPTER 6 From Greenhouse to Icehouse: The Last 50 Million Years Global Climate Change Since 50 Myr Ago 6-1 Evidence from Ice and Vegetation 6-2 Evidence from Oxygen Isotope Measurements 6-3 Evidence from Mg/Ca Measurements Do Changes in Geography Explain the Cooling? 6-4 Gateway Hypothesis 6-5 Assessment of Gateway Changes Hypotheses Linked to Changes in CO2 6-6 Evaluation of the BLAG Spreading Rate Hypothesis 6-7 Evaluation of the Uplift Weathering Hypothesis Climate DebateTiming of the Uplift in Western North America Future Climate Change at Tectonic Scales Looking Deeper into Climate Science: Organic Carbon: Monterrey Hypothesis PART III Orbital-Scale Climate Change CHAPTER 7 Astronomical Control of Solar Radiation Earth’s Orbit Today 7-1 Earth’s Tilted Axis of Rotation and the Seasons 7-2 Earth’s Eccentric Orbit: Distance Between Earth and Sun Long-Term Changes in Earth’s Orbit 7-3 Changes in Earth’s Axial Tilt Through Time Tools of Climate Science: Cycles and Modulation 7-4 Changes in Earth’s Eccentric Orbit Through Time 7-5 Precession of the Solstices and Equinoxes Around Earth’s Orbit Looking Deeper into Climate Science: Earth’s Precession as a Sine Wave Changes in Insolation Received on Earth 7-6 Insolation Changes by Month and Season 7-7 Insolation Changes by Caloric Seasons Searching for Orbital-Scale Changes in Climatic Records 7-8 Time Series Analysis 7-9 Effects of Undersampling Climate Records 7-10 Tectonic-Scale Changes in Earth’s Orbit CHAPTER 8 Insolation Control of Monsoons Monsoon Circulations 8-1 Orbital-Scale Control of Summer Monsoons Orbital-Scale Changes in North African Summer Monsoons 8-2 “Stinky Muds” in the Mediteranean 8-3 Freshwater Diatoms in the Tropical Atlantic 8-4 Upwelling in the Equatorial Atlantic Orbital Monsoon Hypothesis: Regional Assessment 8-5 Cave Speleothems in China and Brazil 8-6 Phasing of Summer Monsoons Looking Deeper into Climate Science: Insolation-Driven Monsoon Responses: Chronometer for Tuning Monsoon Forcing Earlier in Earth’s History 8-7 Monsoons on Pangaea 200 Myr Ago 8-8 Joint Tectonic and Orbital Control of Monsoons CHAPTER 9 Insolation Control of Ice Sheets Milankovitch Theory: Orbital Control of Ice Sheets Modeling the Behavior of Ice Sheets 9-1 Insolation Control of Ice Sheet Size 9-2 Ice Sheets Lag Behind Summer Insolation Forcing 9-3 Delayed Bedrock Response Beneath Ice Sheets Looking Deeper into Climate Science: Ice Volume Response to Insolation 9-4 Full Cycle of Ice Growth and Decay 9-5 Ice Slipping and Calving Northern Hemisphere Ice Sheet History 9-6 Ice Sheet History: δ18O Evidence 9-7 Confirming Ice Volume Changes: Coral Reefs and Sea Level Is Milankovich’s Theory the Full Answer? Looking Deeper into Climate Science: Sea Level on Uplifting Islands CHAPTER 10 Orbital-Scale Changes in Carbon Dioxide and Methane Ice Cores 10-1 Drilling and Dating Ice Cores 10-2 Verifying Ice-Core Measurements of Ancient Air 10-3 Orbital-Scale Carbon Transfers: Carbon Isotopes Orbital-Scale Changes in CO2 10-4 Where Did the Missing Carbon Go? 10-5 δ13C Evidence of Carbon Transfer How Did the Carbon Get into the Deep Ocean? 10-6 Increased CO2 Solubility in Seawater 10-7 Biological Transfer from Surface Waters A Closer Look at Climate Science: Using δ13C to Measure Carbon Pumping 10-8 Changes in Deep-Water Circulation Orbital-Scale Changes in CH4 Orbital-Scale Climatic Roles: CO2and CH4 CHAPTER 11 Orbital-Scale Interactions, Feedbacks, and Unsolved Problems Climatic Responses Driven by the Ice Sheets Mystery of the 41,000-Year Glacial World 11-1 Did Insolation Really Vary Mainly at 41,000 Years? 11-2 Interhemispheric Cancellation of 23,000-Year Ice Volume Responses? 11-3 CO2 Feedback at 41,000 Years? Mystery of the ~100,000-Year Glacial World 11-4 How Is the Northern Ice Signal Transferred South? Why did the Northern Ice Sheets Vary at ~100,000 Years? Looking Deeper into Climate Science: Link Between Forcing and the Time Constants of Ice Response 11-5 Ice Interactions with Bedrock 11-6 Ice Interactions with the Local Environment 11-7 Ice Interactions with Greenhouse Gases PART IV Deglacial Climate Change CHAPTER 12 Last Glacial Maximum Glacial World: More Ice, Less Gas 12-1 Project CLIMAP: Reconstructing the Last Glacial Maximum 12-2 How Large Were the Ice Sheets? 12-3 Glacial Dirt and Winds Testing Model Simulations Against Biotic Data 12-4 COHMAP: Data-Model Comparisons 12-5 Pollen: Indicator of Climate on the Continents 12-6 Using Pollen for Data-Model Comparisons Data-Model Comparisons of Glacial Maximum Climates 12-7 Model Simulations of Glacial Maximum Climates 12-8 Climate Changes near the Northern Ice Sheets 12-9 Climate Changes far from the Northern Ice Sheets How Cold Were the Glacial Tropics? 12-10 Evidence for a Small Tropical Cooling 12-11 Evidence for a Large Tropical Cooling 12-12 Actual Cooling Was Medium-Small CHAPTER 13 Climate During and Since the Last Deglaciation Fire and Ice: Shift in the Balance of Power 13-1 When Did the Ice Sheets Melt? 13-2 Coral Reefs and Rising Sea Level 13-3 Glitches in the Deglaciation: Deglacial Two-Step To
    Standort: AWI Lesesaal
    Standort: A 18 - Bitte bestellen
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: AWI Bibliothek
    Zweigbibliothek: PIK Bibliothek
    Zweigbibliothek: PIK Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 23
    Monographie ausleihbar
    Monographie ausleihbar
    London [u.a.] : Earthscan
    Signatur: PIK N 076-08-0142
    Materialart: Monographie ausleihbar
    Seiten: XIX, 248 S. : graph. Darst., Kt.
    ISBN: 9781844075362
    Originaltitel: Welt im Wandel: Sicherheitsrisiko Klimawandel
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
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  • 24
    Signatur: PIK N 453-08-0117 ; AWI P7-22-6890
    In: Les rapports du Sénat, 230
    Materialart: Monographie ausleihbar
    Seiten: 214 Seiten , Illustrationen
    Serie: Les rapports du Sénat 230
    Sprache: Englisch
    Anmerkung: CONTENTS COMPOSITION OF THE OFFICE CONTENTS INTRODUCTION I. THE POLAR REGIONS: AN URGENT NEED FOR PROTECTION A. EXTREME BUT FRAGILE REGIONS 1. The Arctic Ocean 2. Antarctica B. FRANCE'S RESPONSIBILITY IN THE ANTARCTICA TREATY 1. The origins of the treaty and the Antarctic system 2. Mining a suspended issue 3. Tourism: a new peaceful threat? II. THE POLES: THEIR KEY ROLE IN UNDERSTANDING CLIMATE CHANGE A. UNDERSTANDING PAST CLIMATES TO UNDERSTAND THE FUTURE CLIMATE 1. Recent ice cores from Greenland 2. lce cores from Antarctica 3. Ocean core samples: the transpolar link 4. The future of glacial core sampling B. THERMOHALINE CIRCULATION 1. The general circulation system 2. The importance of the creation of cold, deep waters 3. The Antarctic Ocean, a carbon sink C. THE POLAR REGIONS AT THE HEART OF GLOBAL CLIMATE CHANGE 1. Will the Arctic ice shelf disappear in the summer? 2. Will Greenland melt completely? 3. Can a diagnosis be made concerning the assessment of Antarctica's mass? III. FRANCE'S FIRST-CLASS BIOLOGICAL RESEARCH A. AN EXCEPTIONAL HERITAGE 1. A unique geographic situation 2. 40 to 50 years of continuous observations B. ADAPTING TO GLOBAL CLIMATE CHANGE AND EXTREME ENVIRONMENTS 1. Adapting to climate change 2. Understanding the adaptation to extreme environments C. INNOVATIVE RESEARCH 1. The equipment of animals 2. Hormonal, molecular and genetic research 3. The implications for the organization of research IV. OBSERVING THE EARTH, OBSERVING THE UNIVERSE A. OBSERVATORIES FOR THE EARTH AND THE UPPER ATMOSPHERE 1. Seismology 2. Measuring gravity and terrestrial magnetism 3. Studying the stratosphere and monitoring the ozone layer '1. Observing the ionosphere B. ANTARCTIC ASTRONOMY: A NEW FIELD 1. Recognizing this fast-growing discipline 2. Concordia: the best site in the world/or astronomic observations? 3. Searching for meteorites in Antarctica 4. Measuring cosmic radiation V. PREPARING THE SPACE MISSIONS IN ANTARCTICA A. PREPARING AND VALIDATING THE SATELLITE MISSIONS 1. Space and the polar regions: preparation complementarity 2. Validating on the ground observations made from space B. PREPARING MANNED SPACE FLIGHTS AND MOON OR MARS-BASED STATIONS 1. Concordia - a unique research site 2. Studying behaviour in an extreme environment 3. Physiological studies C. TESTING EXPLORATION MATERIAL 1. American examples and projects 2. European perspectives VI. FRANCE'S PRESENCE IN THE POLAR REGIONS A. DEVELOPING FRANCE'S PRESENCE IN THE ARCTIC, STRENGTHENING ITS PRESENCE IN ANTARCTICA 1. Developing France's Arctic presence 2. Strengthening our presence in the southern regions B. IPEV (THE FRENCH PAUL-EMILE VICTOR INSTITUTE), AN AGENCY OF MEANS VII. INTERNATIONAL COOPERATION: A NECESSITY AND A GOAL A. HOW TO ENCOURAGE A EUROPEAN PROCESS? 1. The European Union: a sufficient framework? 2. The practical and political limitations of cooperation 3. Towards an Italian-German-French engine? B. WHAT INTERNATIONAL COOPERATION FOR FRANCE ON THE EVE OF THE IPY? 1. Excellence, proximity and longevity: three key criteria for cooperation 2. Developing a network for the stations VIII. THE RAPPORTEUR'S CONCLUSIONS AND PROPOSALS 1. Strategic regions 2. Regions to protect 3. Essential regions for understanding climate change 4. Life in the polar regions: of great value to humanity 5. The polar regions: an observatory for the Earth 6. Strongly support the development of astronomy at Concordia 7. Take advantage of the polar regions' complementarity with the space missions 8. Strengthen France's presence in the polar regions 9. Reorganize France's presence in the polar regions 10. Better coordinate polar research 11. Solve the problem of insufficient funding for polar-research logistics 12. Define a French strategy for European and international cooperation APPENDICES SPEAKERS PROCEEDINGS OF THE 1 MARCH 2007 SEMINAR: "OPENING OF THE INTERNATIONAL POLAR YEAR IN FRANCE" PART ONE: LUNCH-DEBATE I. MR. HENRI REVOL, PRESIDENT OF THE OPECST II. MR. JEAN-LOUIS ETIENNE PART TWO: OFFICIAL OPENING SESSION I. INTRODUCTION A. MR. CHRISTIAN GAUDIN, SENATOR, RAPPORTEUR FOR THE OPECST B. MS. CATHERINE BRECHIGNAC, PRESIDENT OF THE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) C. MR. MICHEL JARRAUD, SECRETARY-GENERAL OF THE WORLD METEOROLOGICAL ORGANIZATION D. MR. CHRISTIAN COINTAT, SENATOR, PRESIDENT OF THE ANTARCTIC AND ARTIC STUDY GROUP II. OFFICIAL OPENING OF THE INTERNATIONAL POLAR YEAR IN FRANCE BY MR. CHRISTIAN PONCELET, PRESIDENT OF THE SENATE III. THEMATIC DEBATE-THE POLES: INDICATORS AND EVIDENCE FOR MANKIND A. MS. NELLY OLIN, MINISTER OF ECOLOGY AND SUSTAINABLE DEVELOPMENT B. MS. VALERIE MASSON-DELMOTTE, CLIMATOLOGIST, CEA C. MR. YVON LE MAHO, BIOLOGIST, CNRS D. MS. JOELLE ROBERT-LAMBLIN, ANTHROPOLOGIST, CNRS E. DEBATE IV. CLOSING SPEECHES A. MR. FRAN〈;:OIS GOULARD, MINISTER FOR HIGHER EDUCATION AND RESEARCH B. HIS SERENE HIGHNESS PRINCE ALBERT II OF MONACO APPENDICES APPENDIX 1: DOCUMENTS PRESENTED BY MS. VALERIE MASSONDELMOTTE, CLIMATOLOGIST - CEA APPENDIX 2: DOCUMENTS PRESENTED BY MS. JOELLE ROBERTLAMBLIN, ANTHROPOLOGIST - CNRS APPENDIX 3: DOCUMENTS PRESENTED BY MR. YVON LE MAHO, BIOLOGIST- CNRS
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  • 25
    Monographie ausleihbar
    Monographie ausleihbar
    Princeton, N.J : Princeton University Press
    Signatur: PIK M 490-16-89501
    Beschreibung / Inhaltsverzeichnis: This book provides the first clear, comprehensive, and accessible account of complex adaptive social systems, by two of the field's leading authorities. Such systems--whether political parties, stock markets, or ant colonies--present some of the most intriguing theoretical and practical challenges confronting the social sciences. Engagingly written, and balancing technical detail with intuitive explanations, Complex Adaptive Systems focuses on the key tools and ideas that have emerged in the field since the mid-1990s, as well as the techniques needed to investigate such systems. It provides a
    Materialart: Monographie ausleihbar
    Seiten: XIX, 263 S. , Ill., graph. Darst. , 24 cm
    ISBN: 0691127026 (pbk.: acidfree paper) , 9780691127026 (pbk.: acidfree paper) , 0691130965 (acidfree paper) , 9780691130965 (acidfree paper)
    Serie: Princeton studies in complexity
    Sprache: Englisch
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  • 26
    Monographie ausleihbar
    Monographie ausleihbar
    New York : Berghahn Books
    Signatur: PIK N 540-19-92362
    Materialart: Monographie ausleihbar
    Seiten: XIV, 208 Seiten , Illustrationen, Karten
    ISBN: 1845450159 , 9781845450151
    Serie: Studies in environmental anthropology and ethnobiology 2
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
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  • 27
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge [u.a.] : Cambridge Univ. Press
    Signatur: PIK D 029-20-94028
    Materialart: Monographie ausleihbar
    Seiten: XVI, 328 Seiten
    ISBN: 9780521693820 (pbk.) , 9780521872294 (hardback)
    Serie: Cambridge studies in comparative politics
    Sprache: Englisch
    Anmerkung: Contents: 1. Introduction ; 2. The political process ; 3. Administrative efficiency ; 4. Competition among governments ; 5. Fiscal policy and redistribution ; 6. Fiscal coordination and incentives ; 7. Citizens and government ; 8. Checks, balances, and freedom ; 9. Acquiring and using knowledge ; 10. Ethnic conflict and secession ; 11. Data to the rescue? ; 12. Conclusion: rethinking decentralization.
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  • 28
    Monographie ausleihbar
    Monographie ausleihbar
    Paris : International Energy Agency. Head of Communication and Information Off.
    Signatur: PIK P 120-18-91628
    Materialart: Monographie ausleihbar
    Seiten: 219 Seiten , Ill., graph. Darst.
    ISBN: 9789264038844
    Paralleltitel: Online-Ausg. Mind the gap
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
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  • 29
    Signatur: PIK M 102-08-0153 ; PIK M 102-08-0257 ; 19/M 10.0047 ; AWI S1-10-0005
    Materialart: Monographie ausleihbar
    Seiten: XII, 288 Seiten , Illustrationen, Diagramme, Karten , 1 CD-ROM (12 cm)
    Ausgabe: Second edition
    ISBN: 3540727485 , 978-3-540-72748-4
    Sprache: Englisch
    Anmerkung: Contents Preface 1 Data Analysis in Earth Sciences 1.1 Introduction 1.2 Collecting Data 1.3 Types of Data 1.4 Methods of Data Analysis Recommended Reading 2 Introduction to MATLAB 2.1 MATLAB in Earth Sciences 2.2 Getting Started 2.3 The Syntax 2.4 Data Storage 2.5 Data Handling 2.6 Scripts and Functions 2.7 Basic Visualization Tools Recommended Reading 3 Univariate Statistics 3.1 Introduction 3.2 Empirical Distributions Measures of Central Tendency Measures of Dispersion 3.3 Example of Empirical Distributions 3.4 Theoretical Distributions Uniform Distribution Binomial or Bernoulli Distribution Poisson Distribution Normal or Gaussian Distribution Logarithmic Normal or Log-Normal Distribution Student's t Distribution Fisher's F Distribution Χ2 or Chi-Squared Distribution 3.5 Example ofTheoretical Distributions 3.6 Thet-Test 3.7 TheF-Test 3.8 The Χ2-Test Recommended Reading 4 Bivariate Statistics 4.1 Introduction 4.2 Pearson's Correlation Coefficient 4.3 Classical Linear Regression Analysis and Prediction 4.4 Analyzing the Residuals 4.5 Bootstrap Estimates of the Regression Coefficients 4.6 Jackknife Estimates of the Regression Coefficients 4.7 Cross Validation 4.8 Reduced Major Axis Regression 4.9 Curvilinear Regression Recommended Reading 5 Time-Series Analysis 5.1 Introduction 5.2 Generating Signals 5.3 Blackman-Tukey Autospectral Analysis 5.4 Blackman-Tukey Crossspectral Analysis 5.5 Interpolating and Analyzing Unevenly-Spaced Data 5.6 Evolutionary Blackman-Tukey Powerspectrum 5.7 Lomb-Scargle Powerspectrum 5.8 Wavelet Powerspectrum 5.9 Nonlinear Time-Series Analysis (by N. Marwarn) Phase Space Portrait Recurrence Plots Recommended Reading 6 Signal Processing 6.1 Introduction 6.2 Generating Signals 6.3 Linear Time-Invariant Systems 6.4 Convolution and Filtering 6.5 Comparing Functions for Filtering Data Series 6.6 Recursive and Nonrecursive Filters 6.7 Impulse Response 6.8 Frequency Response 6.9 Filter Design 6.10 Adaptive Filtering Recommended Reading 7 Spatial Data 7.1 Types of Spatial Data 7.2 The GSHHS Shoreline Data Set 7.3 The 2-Minute Gridded Global Elevation Data ETOPO2 7.4 The 30-Arc Seconds Elevation Model GTOPO30 7.5 The Shuttle Radar Topography Mission SRTM 7.6 Gridding and Contouring Background 7.7 Gridding Example 7.8 Comparison of Methods and Potential Artifacts 7.9 Statistics of Point Distributions Test for Uniform Distribution Test for Random Distribution Test for Clustering 7.10 Analysis of Digital Elevation Models (by R. Gebbers) 7.11 Geostatistics and Kriging (by R. Gebbers) Theorical Background Preceding Analysis Variography with the Classical Variogram Kriging Discussion of Kriging Recommended Reading 8 Image Processing 8.1 Introduction 8.2 Datastorage 8.3 Importing, Processing and Exporting Images 8.4 Importing, Processing and Exporting Satellite Images 8.5 Georeferencing Satellite Images 8.6 Digitizing from the Screen Recommended Reading 9 Multivariate Statistics 9.1 Introduction 9.2 Principal Component Analysis 9.3 Independent Component Analysis (by N. Marwan) 9.4 Cluster Analysis Recommended Reading 10 Statistics on Directional Data 10.1 Introduction 10.2 Graphical Representation 10.3 Empirical Distributions 10.4 Theoretical Distributions 10.5 Test for Randomness of Directional Data 10.6 Test for the Significance of a Mean Direction 10.7 Test for the Difference of Two Sets of Directions Recommended Reading General Index
    Standort: A 18 - Bitte bestellen
    Standort: A 18 - Bitte bestellen
    Standort: Lesesaal
    Standort: Lesesaal
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  • 30
    Monographie ausleihbar
    Monographie ausleihbar
    New York : Springer
    Signatur: PIK M 390-16-89508
    Materialart: Monographie ausleihbar
    Seiten: XVI, 417 S. , graph. Darst.
    ISBN: 0387239464 , 9780387239460 , 0387344713
    Serie: Springer series in operations research and financial engineering
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
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  • 31
    Monographie ausleihbar
    Monographie ausleihbar
    Dordrecht : Springer
    Signatur: PIK N 319-16-89764
    Materialart: Monographie ausleihbar
    Seiten: IX, 242 S. , Ill., graph. Darst., Kt
    ISBN: 1402043317 , 9781402043314
    Sprache: Englisch
    Anmerkung: The Sun. The formation of the stars and the Sun ; The characteristics of the Sun ; A representation of the Sun ; The internal structure of the Sun ; The photosphere, solar radiation, the solar wind ; The thermal profile of the solar atmosphere ; Solar dynamics ; The Sun: the source of space weather -- The Earth. The Earth within the solar system ; The internal structure of the Earth : the geomagnetic field ; The atmosphere of the Earth ; The magnetosphere -- Toward a space weather. The consequences of solar agressions on our technological environment ; Other impacts of solar activity ; Space weather in order to forecast -- Appendices..
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  • 32
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge [u.a.] : Cambridge Univ. Press
    Signatur: PIK E 719-16-90179
    Materialart: Monographie ausleihbar
    Seiten: XVI, 260 Seiten , Diagramme , 23 cm
    ISBN: 0521573726 (hardcover) , 9780521573726 (hardcover) , 0521574900 (pbk.) , 9780521574907 (pbk.)
    Sprache: Englisch
    Anmerkung: Contents: 1. The rule we live by ; 2. Habits of the mind ; 3. A taste for fairness ; 4. Covenants without sword ; 5. Informational cascades and unpopular norms ; 6. The evolution of a fairness norm
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  • 33
    Signatur: PIK P 113-18-91627
    Materialart: Monographie ausleihbar
    Seiten: 558 Seiten , Ill., graph. Darst., Kt.
    ISBN: 926410951X
    Serie: Energy efficiency policy profiles
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
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  • 34
    Monographie ausleihbar
    Monographie ausleihbar
    Princeton, NJ [u.a.] : Princeton Univ. Press
    Signatur: PIK B 130-17-91002
    Materialart: Monographie ausleihbar
    Seiten: XVII, 533 Seiten , Diagramme
    Ausgabe: Revised edition
    ISBN: 0691121370 (cloth) , 9780691121376 (cloth)
    Sprache: Englisch
    Anmerkung: Contents: Preface ; Part 1 - Asset Pricing Theory ; 1 Consumption-Based Model and Overview ; 2 Applying the Basic Model ; 3 Contingent Claims Markets ; 4 The Discount Factor ; 5 Mean-Variance Frontier and Beta Representations ; 6 Relation between Discount Factors, Betas, and Mean-Variance Frontiers ; 7 hnplications of Existence and Equivalence Theorems ; 8 Conditioning Information ; 9 Factor Pricing Models ; Part II - Estimating and Evaluating Asset Pricing Models ; I 0 GMM in Explicit Discount Factor Models ; 11 GMM: General Formulas and Applications ; 12 Regression-Based Tests of Linear Factor Models ; 13 GMM for Linear Factor Models in Discount Factor Form ; 14 Maximum Likelihood ; 15 Time-Series, Cross-Section, and GMM/DF Tests of Linear Factor Models ; 16 Which Method? ; Part III - Bonds and Options ; 17 Option Pricing ; 18 Option Pricing without Perfect Replication ; 19 Term Structure of Interest Rates ; Part IV - Empirical Survey ; 20 Expected Returns in the Time Series and Cross Section ; 21 Equity Premium Puzzle and Consumption~Based Models ; PartV - Appendix ; A.1 Brownian Motion ; A.2 Diffusion Model ; A.3 Ito's Lemma ; Problems ; References
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  • 35
    Signatur: PIK T 060-18-91853
    Materialart: Monographie ausleihbar
    Seiten: XXIII, 287 Seiten , Illustrationen, Diagramme, Karten
    Ausgabe: Reprinted
    ISBN: 0470843497 , 9780470843499
    Sprache: Englisch
    Anmerkung: Contents: 1. Introduction to urban Geosimulation ; 2. Formalizing Geosimulation with Geographic Automata Systems (GAS) ; 3. System Theory, Geography, and Urban Modelling ; 4. Modelling urban land usage with cellular automata ; 5. Modelling Urban Dynamics with Multi-Agent Systems ; 6. Finale: Epistemology of Geosimulation
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  • 36
    Monographie ausleihbar
    Monographie ausleihbar
    Paris : IEA Publ.
    Signatur: PIK P 113-18-91630
    Materialart: Monographie ausleihbar
    Seiten: 210 Seiten , graph. Darst., Kt
    ISBN: 9264109617
    Serie: Energy market experience
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
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  • 37
    Monographie ausleihbar
    Monographie ausleihbar
    Paris : IEA Publ.
    Signatur: PIK P 113-18-91629
    Materialart: Monographie ausleihbar
    Seiten: 218 Seiten , graph. Darst
    ISBN: 9264109595
    Serie: Energy market experience
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
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  • 38
    Monographie ausleihbar
    Monographie ausleihbar
    Princeton, NJ : Princeton University Press
    Signatur: PIK D 552-19-92537
    Materialart: Monographie ausleihbar
    Seiten: X, 331 Seiten , Illustrationen
    ISBN: 0691121176 (pb) , 9780691121178 (pb) , 0691121168 (cl) , 9780691121161 (cl)
    Serie: In-formation series
    Sprache: Englisch
    Anmerkung: Contents: 1 Late socialism - an eternal state ; 2 Hegemony of form - Stalin's uncanny paradigm shift ; 3 Ideology inside out - ethics and poetics ; 4 Living "Vnye" - deterritorialized milieus ; 5 Imaginary West - the elsewhere of late socialism ; 6 True colors of Communism - King Crimson, Deep Purple, Pink Floyd ; 7 Dead irony - necroaesthetics, "Stiob", and the anekdot ; Conclusion
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  • 39
    Signatur: PIK D 029-17-90988
    Beschreibung / Inhaltsverzeichnis: This book integrates spatial and behavioral perspectives - in a word, those of the Rochester and Michigan schools - into a unified theory of voter choice and party strategy. The theory encompasses both policy and non-policy factors, effects of turnout, voter discounting of party promises, expectations of coalition governments, and party motivations based on policy as well as office. Optimal (Nash equilibrium) strategies are determined for alternative models for presidential elections in the US and France, and for parliamentary elections in Britain and Norway. These polities cover a wide range of electoral rules, number of major parties, and governmental structures. The analyses suggest that the more competitive parties generally take policy positions that come close to maximizing their electoral support, and that these vote-maximizing positions correlate strongly with the mean policy positions of their supporters
    Materialart: Monographie ausleihbar
    Seiten: xviii, 311 Seiten , Diagramme
    ISBN: 9780521836449
    Sprache: Englisch
    Anmerkung: Contents: 1. Modeling party competition ; 2. How voters decide: the components of the unified theory of voting ; 3. Linking voter choice to party strategies: illustrating the role of non-policy factors ; 4. Factors influencing the link between party strategy and the variables ; 5. Policy competition under the unified theory: empirical applications to the 1988 French Presidential Election ; 6. Policy competition under the unified voting model: empirical applications to the 1989 Norwegian parliamentary election ; 7. The threat of abstention: candidate strategies and policy representation in US presidential elections ; 8. Candidate strategies with voter abstention in US presidential elections: 1980, 1984, 1988, 1996, and 2000 ; 9. Policy competition in Britain: the 1997 general election ; 10. The consequences of voter projection: assimilation and contrast effects ; 11. Policy-seeking motivations of parties in two-party elections: theory ; 12. Policy-seeking motivations of parties in two-party elections: empirical analysis ; 13. Concluding remarks.
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  • 40
    Monographie ausleihbar
    Monographie ausleihbar
    Basingstoke [u.a.] : Palgrave Macmillan
    Signatur: PIK B 100-18-91588
    Materialart: Monographie ausleihbar
    Seiten: XII, 423 Seiten , Diagramme , 22 cm
    ISBN: 1403920737 (hbk.) , 9781403920737 (hbk.) , 1403920745 (pbk.) , 9781403920744 (pbk.)
    Sprache: Englisch
    Anmerkung: Contents: Prologue: Searching for a New Kind of Economics ; Japanese Economic Performance During the 1990s ; The Enigma of the Ineffectiveness of Fiscal Policy in the 1990s ; The Enigma of the Ineffectiveness of Interest Rate Policy in the 1990s ; The Enigma of Japan’s Long Recession ; The Enigma of the Ineffectiveness of Structural Policy ; The Enigma of Economic Growth ; The Enigma of the Velocity Decline ; The Enigma of Japanese Asset Prices ; The Enigma of Japanese Capital Flows in the 1980s ; The Enigma of Japanese Bank Lending ; The Enigma of Banking and its Recurring Crises ; Solving the Enigma of Banking and Money ; Credit, Money and the Economy ; Explaining the Velocity Decline ; The Determinants of Growth ; The Cause of the Asset Price Bubbles and Banking Crises ; The Determinants of Japanese Capital Flows in the 1980s ; Why Fiscal Policy Could Not Work ; Monetary Policy in the 1990s and How to Create a Recovery ; Monetary Policy in the 1980s: How Bank Credit was Determined ; Banking Reform ; The Goal of Fiscal, Structural and Monetary Policy ; A New Kind of Economics ; A New Vision of Macroeconomic Policy
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  • 41
    Monographie ausleihbar
    Monographie ausleihbar
    Washington, DC : Cato Inst.
    Signatur: PIK N 071-06-0078
    Materialart: Monographie ausleihbar
    Seiten: 144 S.
    ISBN: 1930865767
    Originaltitel: Vatten till salu
    Sprache: Englisch
    Anmerkung: Erscheinungsjahr in Vorlageform:c 2005
    Standort: A 18 - Bitte bestellen
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  • 42
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-89/2
    In: CRREL Report, 89-2
    Beschreibung / Inhaltsverzeichnis: A brash ice jam in the South Channel of the St. Clair River was profiled in February 1987 using a helicopter-borne short-pulse radar operating in the UHF band near 500 MHz. During the same time, measurements of the brash ice depth and water temperature were made from a Coast Guard icebreaker. The returned radar pulses consisted of a strong coherent reflection from the water surface, preceded (and followed) by incoherent returns from the brash ice. The measured waveform time delays were then converted to mean freeboard height of the brash ice pieces above the water surface. Given the mean freeboard height, an estimate of the total brash ice thickness was made. This estimate was greater than the range of the direct shipboard measurements. The difference is believed due to differences between ice porosity above and below the water line, to melting within the ice and to partial submergence of some of the surface pieces. It is concluded that this technique could be used for mapping relative brash ice depth if the complexities of automating waveform analysis could be overcome.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 25 Seiten , Illustrationen
    Serie: CRREL Report 89-2
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Objectives and procedures Equipment Radar Brash ice probe Temperature measurements St. Clair River ice conditions Results and discussion Thickness and temperature Size distribution Radar survey Discussion of errors Porosity Phase state of the ice Partial submergence of individual pieces Spectra of reflected energy Conclusions and recommendations Literature cited Appendix A: Laboratory verification of surface scattering from a simulated ice jam Appendix B: Display of digitized and processed data
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  • 43
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-89/21
    In: CRREL Report, 89-21
    Beschreibung / Inhaltsverzeichnis: The physical characteristics of blue ice ablation areas in Antarctica are described and some representative ablation rates are given. The possibilities for using blue-ice areas as airfields are outlined and exploratory surveys are mentioned. Site details are given for icefields at Mount Howe, Mill Glacier, Patriot Hills, Rosser Ridge, Mount Lechner, S1 near Casey station, and on the Ross Ice Shelf near McMurdo station. The surface roughness of blue ice is discussed, microrelief surveys are presented for Mount Howe and Patriot Hills, and spectral analyses are used to develop relations between bump height and wavelength. U.S. military specifications for the roughness limits of various types of runways are summarized and graphical comparisons are made with the roughness analyses for Mount Howe and Patriot Hills. Special machines for smoothing ice runways are discussed and design specifications are developed. Some notes on ground facilities and ground transport are included. Appendices give discussions of weather patterns in the Transantarctic Mountains and methodology for making spectral analyses of surface roughness. It is concluded that glacier-ice airfields for conventional transport aircraft can be developed at low cost in Antarctica. Recommendations for further work are offered.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 105 Seiten , Illustrationen
    Serie: CRREL Report 89-21
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Blue-ice areas Blue-ice areas as airfield sites The formation of blue-ice areas Ablation rates at blue-ice areas Exploratory surveys at blue-ice areas Mount Howe Mill Glacier / Plunket Point Patriot Hills Rosser Ridge Mount Lechner The S-1 site near Casey station The McMurdo "Pegasus Site" Surface roughness of blue ice Analysis and characterization of surface roughness Surface preparation to reduce ice roughness Ground facilities Ground transport Conclusions and recommendations Literature cited and selected references Appendix A: Survey data for Patriot Hills, Mount Howe and Mill Glacier Appendix B: Analysis of surface roughness at blue-ice sites Appendix C: Meteorological conditions to be expected in summer in the Trans-antarctic Mountains
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  • 44
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-89/25
    In: CRREL Report, 89-25
    Beschreibung / Inhaltsverzeichnis: This study provides a detailed chemical and structural profile of first-year and multiyear Arctic sea ice. Ice cores were collected during April- May 1986 and 1987 near Prudhoe Bay, Alaska. Concentrations of Cl, Br, SO4, Na, Ca, K, Mg, PO4, SiO4, NO3, NO2 and NH4 were determined for samples chosen on the basis of structural ice type. Chemical and statistical analyses indicate that finer-grained structures incorporate more impurities and that major ion chemistry is controlled almost entirely by salinity. Mg is enriched in the ice indicating precipitation is occurring at temperatures higher than previously reported. K is depleted in the ice suggesting preferrential drainage. Ratios of the major ions are the same for first-year and multiyear ice and are similar to that of seawater indicating that as the ice ages no significant changes occur in ice chemistry. Nutrient concentrations in the ice are enriched with respect to the underlying water, indicating that biological activity occurs in the ice and processes other than the overall salinity effect and brine drainage are affecting nutrient concentrations within the ice.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 144 Seiten , Illustrationen
    Serie: CRREL Report 89-25
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Background Formation, growth, and structure of sea ice Oceanic frazil production Multiyear ice Equilibrium growth Summer ice decay Annual layering Salinity distribution in sea ice Chemistry of sea ice Study area description Objectives Methodology Sample collection Blanks Chemical analyses Thin sections Data reduction Results and discussion First-year ice Multiyear ice Comparison of first-year and multiyear ice Summary Conclusions Future work References Appendix A: Concentration of chemical species in sea ice as reported in the literature Appendix B: Ice and water data Appendix C: Linear regression data
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  • 45
    Signatur: ZSP-SCAR-570-11
    In: National Antarctic Research Report to SCAR, No. 11
    Materialart: Schriftenreihen ausleihbar
    Seiten: 55 Seiten , Illustrationen
    ISSN: 0179-0072
    Serie: National Antarctic Research Report to SCAR 11
    Sprache: Englisch
    Anmerkung: CONTENTS: I. National Committee for Antarctic Research, and National Operating Organization/Agency. - II. Map of Stations. - Ill. Permanent Observatories, Regular Observations and Long-term Monitoring. - IV. Report on Highlights of Science Activities from Previous Reporting Period (1 Oct. 88 - 31 March 89). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences. - V. List of Permits and Rationale for Entry into SPAs and SSSIs. - VI. Prospectus of Planned Activities for Coming Reporting Period (1 April 89 - 31 March 90). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences. - VII. Future Activities Planned & Funded (beyond 31 March 90). - VIII. Bibliography. - IX. List of Principal Investigators and Responsible Authorities. - X. Summary Listing of Projects.
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  • 46
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-89/14
    In: CRREL Report, 89-14
    Beschreibung / Inhaltsverzeichnis: The effects of runner material and surface conditions on the friction between runners and ice were studied. A model sled was pushed over a 6-m-long ice sheet and the reduction of speed of the sliding sled was measured. The friction calculated by the reduction of speed between two gates indicated that smooth runners showed lower friction at around -1°C than at around -10°C, as expected, but the friction of rough runners showed little temperature dependence. The lower thermally conductive runners showed lower friction than higher thermally conductive smooth runners as the theory predicted, but such effects were obscured on rougher runners.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 23 Seiten , Illustrationen
    Serie: CRREL Report 89-14
    Sprache: Englisch
    Anmerkung: CONTENTS Preface Introduction Apparatus and procedures General approach Sled design Sled propulsion Ice sheet preparation Experimental procedure Results General remarks Effect of runner temperature Effect of runner surface Effect of ice surface conditions Effect of velocity Effect of runner materials Observations of replicate surfaces Statistical analysis Discussion Molecular interactions Mechanical deformations Thermal energy dissipation Hydrodynamidc processes Comparison of energy loss mechanisms Summary and conclusions Literature cited
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  • 47
    Signatur: ZSP-201-89/10
    In: CRREL Report, 89-10
    Beschreibung / Inhaltsverzeichnis: In early fall 1984, a questionnaire was sent to over 325 general aviation airports in cold regions. The results from over 200 responses were compiled and evaluated and over 20 airport managers were contacted for additional details. Site visits were made to 36 airports to obtain additional information. The most common pavement problems identified in the study were associated with non-traffic-related phenomena and include 1) pre-existing cracks reflecting through asphalt concrete overlays (in two years less), 2) thermal cracking, and 3) longitudinal cracking (at a construction joint). Most of the airports experienced 1) water pumping up through cracks and joints in the pavements during spring thaw, or 2) additional roughness due to differential frost heave in the winter, or both problems. Many airport managers reported that debris was generated at cracks during the winter and spring. Many pavement problems can be traced to the evolutionary history of general aviation airports and the lack of consideration for site drainage. Based on the recognition of these problems, several future research programs are identified.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 147 Seiten , Illustrationen
    Serie: CRREL Report 89-10
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Statement of the problem Purpose and scope Background - the physical environment and airport pavements Physical environment of study area Comparison of highway and general aviation airport pavements Types of pavements and surface treatments Pavement distress and condition rating Surveys of airport pavement distress Airport pavement performance problems in cold regions Cracking Distortion and pavement faulting Disintegration Inadequate skid resistance Improper maintenance Stripping Statement of research needs Basis for statement of research needs Performance of overlays Recycling/reconstructing airport pavements Drainage of airport pavement structures Eliminating/accommodating differential frost heave Evaluation of adequacy of design procedures Maintenance products and performance Control of transverse cracking Additives for asphalt concrete Performance documentation Wildlife conservation vs aircraft safety Literature cited Appendix A: Questionnaire and listing of airports contacted Appendix B: Summary listing of questionnaire responses Appendix C: Narrative summary of site visits
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  • 48
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-89/19
    In: CRREL Report, 89-19
    Beschreibung / Inhaltsverzeichnis: Recent efforts to improve airborne electromagnetic induction- measurement technology and to downsize the related helicopter-towed antenna assembly from about 7.5 m long to about 3.5 m long for use in airborne measurement of sea ice thickness are discussed, as are the results from arctic field testing. Also outlined are the system noise and drift problems encountered during arctic field evaluation, problems that adversely affected the quality of the sounding data. The sea ice sounding results indicate that it should be possible to determine thickness to within 5% for ice floes with moderate relief but that, because of sounding footprint size and current model algorithm constraints, steepsided pressure ridge keels cannot be well defined. The findings also indicate that routine sea ice thickness profiling from an airborne platform is close at hand with further system improvement, as is the apparent capability to determine the conductivity of the sea ice, from which an assessment of sea ice strength can be made.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 54 Seiten , Illustrationen
    Serie: CRREL Report 89-19
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Pre-field-deployment activities Software development System optimization Improvements of the calibration procedure Real-time processing Small bird design and implementation Other improvements Field activities Snow, ice and seawater data AEM surveys Calibration AEM data processing Post-survey results Processing problem Ground truth data Floe freeboard vs thickness analysis AEM sounding results Concluding remarks Literature cited Appendix A: Blowup of Figure 28
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  • 49
    Monographie ausleihbar
    Monographie ausleihbar
    Oxford [u.a.] : Oxford University Press
    Signatur: 19/M 01.0246 ; PIK N 400-99-0108 ; AWI S2-97-0303
    Beschreibung / Inhaltsverzeichnis: Contents: 1. Introduction. - 2. Univariate Description. - 3. Bivariate Description. - 4. Spatial Description. - 5. The Exhaustive Dataset. - 6. The Sample Data Set. - 7. The Sample Data Set: Spatial Continuity. - 8. Estimation. - 9. Random Function Models. - 10. Global Estimation. - 11. Point Estimation. - 12. Ordinary Kriging. - 13. Block Kriging. - 14. Search Strategy. - 15. Cross Validation. - 16. Modelling the Sample Variogram. - 17. Cokriging. - 18. Estimating a Distribution. - 19. Change of Support. - 20. Assessing Uncertainty. - 21. Final Thoughts. - Bibliography. - A The Walker Lake Data Sets. - B Continous Random Variables. - Index.
    Materialart: Monographie ausleihbar
    Seiten: XIX, 561 S.
    ISBN: 0195050134
    Klassifikation:
    Mathematische Geologie
    Sprache: Englisch
    Standort: Lesesaal
    Standort: A 18 - Bitte bestellen
    Standort: Lesesaal
    Zweigbibliothek: GFZ Bibliothek
    Zweigbibliothek: PIK Bibliothek
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  • 50
    Signatur: 4/M 94.0598 ; M 93.0706 ; AWI A3-95-0116 ; PIK N 454-96-0231
    In: NATO ASI series
    Materialart: Monographie ausleihbar
    Seiten: XXV, 724 S. : graph. Darst.
    ISBN: 0792304128 , 0-7923-0404-7
    Serie: NATO ASI series : C, Mathematical and physical sciences 285
    Klassifikation:
    Meteorologie und Klimatologie
    Sprache: Englisch
    Standort: Lesesaal
    Standort: Kompaktmagazin oben
    Standort: Kompaktmagazin oben
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Zweigbibliothek: GFZ Bibliothek
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  • 51
    Monographie ausleihbar
    Monographie ausleihbar
    Dordrecht : Kluwer Academic Publ.
    Dazugehörige Bände
    Signatur: PIK M 370-94-0060
    In: Theory and decision library
    Materialart: Monographie ausleihbar
    Seiten: 307 p.
    ISBN: 0792303911
    Serie: Theory and decision library 49
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
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  • 52
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Leipzig : Acad. of Sciences of the GDR, Central Inst. for Isotope and Radiation Research
    Dazugehörige Bände
    Signatur: ZSP-980-76
    In: ZfI-Mitteilungen, 76
    Materialart: Schriftenreihen ausleihbar
    Seiten: 45 S. , graph. Darst.
    Ausgabe: Preprint
    Serie: ZfI-Mitteilungen 76
    Sprache: Englisch
    Anmerkung: Contents: Introduction. - Material and methods. - Characterization of subjects and environmental conditions. - Experimental procedure. - Evaluation of experiments. - Results. - Investigation of protein metabolism. - Investigation of energy metabolism. - Discussion. - Acknowledgements. - References.
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  • 53
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-88/14
    In: CRREL Report, 88-14
    Beschreibung / Inhaltsverzeichnis: An experimental study covering a mass flow rate ranging from 1.62 to 67.45 g/cm2-s and snow density varying from 0.377 to 0.472 g/cm3 has been conducted. Pressure drops ranging from 0.012 to 2.868 gf/cm2 were recorded. A plot of the friction factor fp vs Rep (defined as the classical Reynolds number Re for fluid flow through conduits) showed a good representation of all the experimental data. The least-squares analysis resulted in an expression of f sub p = 118/Rep to the 1.095 power for snow, in comparison with the expression f sub p = 64/Rep developed for fluid flow through porous media of randomly packed metallic and nonmetallic materials of spherical and nonspherical shapes.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 18 Seiten , Illustrationen
    Serie: CRREL Report 88-14
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Experimental setup and procedure Experimental results Discussion and conclusions Literature cited
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  • 54
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-88/16
    In: CRREL Report, 88-16
    Beschreibung / Inhaltsverzeichnis: Unfrozen water content as a function of temperature was measured in the laboratory using nuclear magnetic resonance (NMR) for a Windsor sandy loam soil. The data were related to previously measured soil moisture retention data through the modified Clapeyron equation with suitable adjustment for surface tension. The results show the usefulness of extending the soil freezing curve to temperatures only slightly below freezing and the soil water curve to very great suction.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 42 Seiten , Illustrationen
    Serie: CRREL Report 88-16
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Soil variable ø SWC and SFC similarity Mathematical representation of SWC and SFC data NMR measurement of unfrozen water content Characterization of SWC Discussion Conclusions Literature cited Appendix A: Soil freezing curve data Appendix B: Error analysis Appendix C: Soil water curve data
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  • 55
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-88/13
    In: CRREL Report, 88-13
    Beschreibung / Inhaltsverzeichnis: In many sea ice engineering problems the ice sheet has been assumed to be a homogeneous plate whose mechanical properties are estimated from the bulk salinity and average temperature of the ice sheet. Typically no regard has been given to the vertical variation of ice properties in the ice sheet or to the time of ice formation. This paper first reviews some of the mechanical properties of sea ice, including the ice tensile, flexural and shear strengths, as well as the ice modulus. Equations for these properties are given as functions of the ice brine volume, which can be determined from the ice salinity and temperature. Next a numerical, finite difference model is developed to predict the salinity and temperature profiles of a growing ice sheet. In this model ice temperatures are calculated by performing an energy balance of the heat fluxes at the ice surface. The conductive heat flux is used to calculate the rate of ice growth and ice thickness by applying the Stefan ice growth equation. Ice salinities are determined by considering the amount of initial salt entrapment at the ice/water interface and the subsequent brine drainage due to brine expulsion and gravity drainage. Ice salinity and temperature profiles are generated using climatological data for the Central Arctic basin. The predicted salinity and temperature profiles are combined with the mechanical property data to provide mechanical property profiles for first-year sea ice of different thicknesses, grown at different times of the winter. The predicted profiles give composite plate properties that are significantly different from bulk properties obtained by assuming homogeneous plates. In addition the failure strength profiles give maximum strength in the interior of the sheet as contrasted with the usual assumption of maximum strength at the cold, upper ice surface. Surprisingly the mechanical property profiles are only a function of the ice thickness, independent of the time of ice formation.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 63 Seiten , Illustrationen
    Serie: CRREL Report 88-13
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Structure Composition Mechanical properties Strength Elastic constants The temperature-salinity model Temperature profiles Salinity profiles Composite plate properties Results Conclusions Literature cited Appendix A: Details of the equations for ice surface temperature and conductive heat flux Appendix B: Calculated profile and bulk properties of an ice sheet of varying thickness Appendix C: Calculated profile and bulk properties of 30- and 91-cm-thick ice sheets
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  • 56
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-88/18
    In: CRREL Report, 88-18
    Beschreibung / Inhaltsverzeichnis: The results of a laboratory testing program, carried out to compare two independent methods for determining the unfrozen water content of soils, are described. With the time domain reflectometry method, the unfrozen water content is inferred from a calibration curve of apparent dielectric constant vs volumetric water content, determined by experiment. Previously, precise calibration of the TDR technique was hindered by the lack of a reference comparison method, which nuclear magnetic resonance now offers. This has provided a much greater scope for calibration, including a wide range of soil types and temperature (unfrozen water content). The results of the testing program yielded a relationship between dielectric constant and volumetric unfrozen water content that is largely unaffected by soil type, although a subtle but apparent dependency on the texture of the soil was noted. It is suggested that this effect originates from the lower valued dielectric constant for absorbed soil water. In spite of this, the general equation presented may be considered adequate for most practical purposes. The standard error of estimate is 0.015 cc/cc, although this may be reduced by calibrating for individual soils. Brief guidelines on system and probe design are offered to help ensure that use of the TDR method will give results consistent with the relationship presented.
    Materialart: Schriftenreihen ausleihbar
    Seiten: ii, 16 Seiten , Illustrationen
    Serie: CRREL Report 88-18
    Sprache: Englisch
    Standort: AWI Archiv
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  • 57
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-88/20
    In: CRREL Report, 88-20
    Beschreibung / Inhaltsverzeichnis: This study develops design criteria for a new sludge dewatering unit operation called a sludge freezing bed. This bed uses natural freeze-thaw to condition the sludge. The total depth of sludge that can be frozen, thawed and dewatered by this process in a year is the main criterion needed for design. Laboratory tests assessed the dewaterability of freeze-thaw conditioned water treatment plant sludge and both anaerobically and aerobically digested wastewater sludges at various depths. Mathematical models for predicting the design depth were developed; values for the input parameters to the models were obtained from the literature or from laboratory and pilot-scale experiments. The dewaterability tests indicated that the depth of sludge that can be applied is not limited by drainability. Up to 2.0 m of each sludge drained in minutes after freeze-thaw conditioning. Except for the aerobically digested sludge, the solids content after drainage is high enough to permit mechanical removal. The physical and thermal characteristics of frozen sludge were found to be equivalent to those of ice. An analysis of the freezing and thawing models reveals that the design of a freezing bed will depend on the duration and intensity of the freezing and thawing seasons.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 58 Seiten , Illustrationen
    Serie: CRREL Report 88-20
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Background Purpose Scope Literature review Fundamentals of freeze separation Applications of freeze separation technology Conclusions Concept development Background Site visits Final concept Dewaterability studies Sludge characteristics Specific resistance and capillary suction time Filtrate quality Drainage tests Drying tests Development of design models Basic energy balance relationship Development of freezing model Development of thawing model Other models Evaluation of sludge input parameters Frozen sludge density, ϱf Layer thickness, ϵ Settled solids fraction, θ Thermal conductivities, Kfs, Kss Latent heat of fusion, L Absorptance, α Freezing point, Tf Summary Evaluation of climatic input parameters Ambient air temperatures, Taf, Tat Insolation, I Convection coefficient, hc Use of models for design Freezing design depth Thawing design depth Validation Example Conclusions anid recommendations Literature cited Appendix A: Sludge freezing at the Salem, New Hampshire, Wastewater Treatment Plant
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  • 58
    Monographie ausleihbar
    Monographie ausleihbar
    Portland, Or. : Timber Press
    Signatur: PIK N 630-15-89166
    Materialart: Monographie ausleihbar
    Seiten: 140 S., 64 S. Tafeln , Ill. , 23 cm.
    Ausgabe: 1995 repr.
    ISBN: 0881920789 (pbk.)
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
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  • 59
    Signatur: ZSP-201-88/1
    In: CRREL Report, 88-1
    Beschreibung / Inhaltsverzeichnis: The Cornish-Windsor bridge is the longest covered bridge in the United States and has significant historical value. At a large peak flow, dynamic ice breakup of the Connecticut River can threaten the bridge and cause flood damage in the town of Windsor, Vermont. Throughout the 1985-86 winter we regularly monitored ice conditions, including a midwinter dynamic ice breakup on 27 January. We conducted controlled release tests over the operating range of the turbines at Wilder Dam upstream during both open water and ice cover conditions. These data and observations were analyzed in light of more than 60 years of temperature and discharge records. Our analysis indicates that river regulation presents alternatives for ice management that would minimize the probability of bridge damage and flooding during breakup. The flow can be regulated early in the winter to promote the growth of a stable ice cover, minimizing the total ice production in the reach. In the weeks prior to breakup, sustained releases and above-freezing air temperatures cause melting, weakening and gradual breakup of the ice, greatly reducing the flooding potential. Also, it is possible to produce a controlled ice breakup prior to an imminent natural event at lower stage and discharge. All of these ice control alternatives have associated power production costs.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 21 Seiten , Illustrationen
    Serie: CRREL Report 88-1
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Background Analysis of historical data Field observations Controlled release tests January 1986 ice breakup Connecticut River ice control Minimizing ice production Hydrothermal melting Controlled ice breakup Conclusions Literature cited Appendix A: Detailed ice breakup chronology
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  • 60
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-88/2
    In: CRREL Report, 88-2
    Beschreibung / Inhaltsverzeichnis: While many materials undergo phase change at a fixed temperature, soil systems exhibit a definite zone of phase change. The variation of unfrozen water with temperature causes a soil system to freeze of thaw over a finite temperature range. Exact and approximate solutions are given for conduction phase change of plane layers of soil with unfrozen water contents that vary linearly and quadratically with temperature. The temperature and phase change depths were found to vary significantly from those predicted for the constant-temperature or Neumann problem. The thermal conductivity and specific heat of the soil within the mushy zone varied as a function of unfrozen water content. It was found that the effect of specific heat is negligible, while the effect of variable thermal conductivity can be accounted for by a proper choice of thermal properties used in the constant-thermal-property solution.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 30 Seiten , Illustrationen
    Serie: CRREL Report 88-2
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Nomenclature Preface Introduction Basic equations Two-zone problems Linear unfrozen water function Quadratic unfrozen water function Three-zone problems Linear unfrozen water function Quadratic unfrozen water function Conclusions Literature cited Appendix A: Derivation of the mushy zone equation Appendix B: Solution of the two-zone problem with a linear t and variable thermal properties
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  • 61
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-88/11
    In: CRREL Report, 88-11
    Beschreibung / Inhaltsverzeichnis: This study assesses the effects of atmospheric icing on broadcast transmission reflections on two mountains- Mount Mansfield in northern Vermont and Mount Washington in New Hampshire. Experience and theory suggest that antenna ice accretions produce large signal reflections. Correlations between reflection coefficients and ice accretions on Rosemount ice detectors adjacent to antennas were low and occasionally negative. The unexpected correlations may be due to factors not measured, such as antenna tuning, ice type and ice location on the antenna system. Other confounding factors may include ice detector performance and methods used to compute antenna ice accretions from the ice detectors.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 19 Seiten , Illustrationen
    Serie: CRREL Report 88-11
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Data sources Study location and icing conditions Icing data Antenna reflection data Data preparation Analyses Conclusions Literature cited
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  • 62
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-88/5
    In: CRREL Report, 88-5
    Beschreibung / Inhaltsverzeichnis: This report describes the structural analysis of multi-year sea ice samples that were tested in the second phase of a program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. Each test specimen is classified into one of three major ice texture categories: granular, columnar, or a mixture of columnar and granular ice. The crystallographic orientation, percent columnar ice, and grain size are then evaluated for the granular and/or columnar ice in the sample. Test results are interpreted with respect to these parameters. The overall composition of multi-year ridges is considered, based on the extensive field sampling that was done in the program. The effect of sample orientation on the results is also discussed.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 32 Seiten , Illustrationen
    Serie: CRREL Report 88-5
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Sample analysis Continuous multi-year ridge core Tested multi-year ridge ice samples Unconfined constant-strain-rate compression tests Confined constant-strain-rate compression tests Uniaxial constant-strain-rate tension tests Discussion Conclusion Literature cited Appendix A: Multi-year ridge sample data
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  • 63
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-88/15
    In: CRREL Report, 88-15
    Beschreibung / Inhaltsverzeichnis: The main points covered are: (1)modeling criteria for ships in ice, which must take into account the presence of a solid boundary at the water surface; (2) types of model ice used in various tanks-saline ice, urea-doped ice, EG/AD/S ice and synthetic ice; (3) techniques for growing model ice sheets, and achieving and monitoring the required ice properties; (4) limitations of both model ice and property measurement techniques; (5) model testing procedures for EHP and SHP tests and their limitations; (6) comparison between model test results and available full-scale trials data; (7) existing empirical and analytical or semi-analytical algorithms for predicting ship performance in level ice; (8) current research at CRREL and other research facilities to improve modeling techniques and data interpretation; and (9) novel bow designs for ice-transiting vessels.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 39 Seiten , Illustrationen
    Serie: CRREL Report 88-15
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction General considerations Ice properties Modulus, E Characteristic length, Ic Flexural strength, σf Com pressive strength, σc Shear strength, σs Poisson's ratio, ϑ Fracture toughness, Kic Density, ρi Ice-hull friction factor, fi Model ice Synthetic ice Columnar saline ice Columnar carbamide ice Fine-grained ice EG/AD/S model ice Model test procedures Ice growth and monitoring EHP tests SHP test Test data analysis--comparison with full scale Analysis of test results Comparison with full-scale data Analytical and empirical predictors Empirical predictors Analytical and semi-analytical schemes Current research efforts in ice modeling International cooperative research Ice testing CRREL research on ship-ice interaction Novel icebreaking bow designs Conclusions and final remarks Literature cited
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  • 64
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge, Massachusetts : MIT Press
    Signatur: PIK B 719-20-93057
    Materialart: Monographie ausleihbar
    Seiten: VIII, 205 Seiten
    ISBN: 0262071118 , 0262570734 , 9780262570732
    Serie: MIT Press Classic
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
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  • 65
    Signatur: ZSP-SCAR-570-10
    In: National Antarctic Research Report to SCAR, 10
    Materialart: Schriftenreihen ausleihbar
    Seiten: 61 Seiten
    ISSN: 0179-0072
    Serie: National Antarctic Research Report to SCAR 10
    Sprache: Englisch
    Anmerkung: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Members of Permanent Working Groups and Groups of Specialists of SCAR. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 1987 - October 1988. - II. Planned Activities, October 1988 - October 1989. - References. - Addenda to Former Reports. - Index of Activities.
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  • 66
    Monographie ausleihbar
    Monographie ausleihbar
    Englewood Cliffs : Prentice Hall
    Signatur: PIK M 032-94-0115
    Materialart: Monographie ausleihbar
    Seiten: xi, 272 S.
    Ausgabe: 2nd ed.
    ISBN: 0131103628
    Klassifikation:
    C.2.4.
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
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  • 67
    Signatur: ZSP-201-87/17
    In: CRREL Report, 87-17
    Beschreibung / Inhaltsverzeichnis: The ability to map frazil ice deposits and water channels beneath an ice-covered river in central Alaska using the magnetic induction conductivity (MI) technique has been assessed. The study was performed during the first week of March of 1986 on the Tanana River near Fairbanks and employed a commercially available instrument operating at a fixed frequency with a fixed antenna (coil) spacing and orientation. Comparisons of the MI data with theoretical models based upon physical data measured along three cross sections of the river demonstrate the sensitivity of the MI technique to frazil ice deposits. The conductivity generally derived for the frazil ice deposits encountered is very low (approx. .00063 s/m) when compared with the measured value for water (approx. 0.011 S/m), and is similar to the calculated values for gravel and sandy gravel bed sediments. In all three cross sections, maxima in the apparent conductivity profiles correlated with frazil ice deposits. Difficulties, possibly due to adverse effects of cold weather upon instrument calibration, affected the quantitative performance of the instrument on one cross section, although the interpretation of the data (locations of open channels vs frazil deposits) was qualitatively unaffected.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 17 Seiten , Illustrationen
    Serie: CRREL Report 87-17
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Magnetic induction conductivity method Site description and survey methods Cross section field data and modeling results X6 X3A X4 Conclusions and recommendations Literature cited Appendix A: Discussion of errors Appendix B: Modeling data
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  • 68
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/19
    In: CRREL Report, 87-19
    Beschreibung / Inhaltsverzeichnis: The approximate heat balance integral method (HBIM) is extended to the case of a medium with variable properties such as snow. The case of linear variation of thermal conductivity was investigated. An alternative heat balance integral method (AHBIM) was developed. Both constant surface temperature and surface heat flux were considered. A comparison was made of the temperature distribution from the HBIM, AHBIM and an analytical method for the case of constant surface temperature. In general, results agree quite well with the analytical method for small values of dimensionless time τ, but the difference becomes more pronounced as τ increases. It was found that the AHBIM with a quadratic temperature profile gave a somewhat better result, especially when the value of the dimensionless distance η is small. For a specific property function of E(η) = eη, closed form solutions were obtained. The results, when compared with those from HBIM, AHBIM and the analytical method were found to agree exceptionally well with the analytical method, especially for large values of τ.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 26 Seiten , Illustrationen
    Serie: CRREL Report 87-19
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Mathematical analysis Constant surface temperature Constant surface heat flux Comparison with exact solution Alternative method Conclusions and comments Literature cited Appendix A: Derivation of equation 25 Appendix B: Derivations of equations 37 and 40 Appendix C: Derivation of equations 37a and 40
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  • 69
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/15
    In: CRREL Report, 87-15
    Beschreibung / Inhaltsverzeichnis: Constant strain-rate tension tests were conducted on remolded saturated frozen Fairbanks silt at various temperatures, strain rates, and densities. It was found that the critical strain rate of the ductile-brittle transition is not temperature-dependent at temperatures down to -5°C, but varies with density. The peak tensile strength decreases considerable with decreasing strain rate for ductile failure, but it decreases slightly with increasing strain rate for brittle fracture. The failure strain remains almost constant at temperatures lower than about -2°C, but it varies with density and strain rate at -5°C. The initial tangent modulus is independent of strain rate and increases with decreasing temperature and density.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 29 Seiten , Illustrationen
    Serie: CRREL Report 87-15
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Testing Material Specimen preparation Testing procedure and apparatus Results Discussion Peak tensile strength, σm Failure tensile strain, ϵf Initial tangent modulus and 50% peak strength modulus Discussion of test techniques Conclusions Literature cited Appendix A: Physical properties of Fairbanks silt specimens Appendix B: Unfrozen water content data of Fairbanks silt with three typical water contents
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  • 70
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/21
    In: CRREL Report, 87-21
    Beschreibung / Inhaltsverzeichnis: The author measured time series of longitudinal (u) and vertical (w) velocity and temperature (t) and humidity (q) fluctuations with fast-responding sensors in the near-neutrally stable surface layer over a snow-covered field. These series yielded individual spectra and u-w, w-t, w-q and t-q cospectra, phase spectra and coherence spectra for nondimensional frequencies (fz/U) from roughly 0.001 to 10. With the exception of the u-w cospectra, all the spectra and cospectra displayed the expected dependence on frequency in an inertial or inertial-convective subrange. All, however, contained significantly more energy at low frequency than the Kansas neutral-stability spectra and cospectra. This excess low-frequency energy and the erratic behavior of the u-w cospectra imply that forested hills bordering the site on two sides were producing disturbances in the flow field at scales roughly equal to the height of the hills, 100 m. The phase and coherence spectra suggest that internal gravity waves were also frequently present, since the atmospheric boundary layer generally had slightly stable stratification. Consequently, at this complex site, turbulence alone determines the spectra and cospectra at high frequency; at low frequency the spectra and cospectra reflect a combination of topographically generated turbulence and internal waves. From the measured temperature and humidity spectra and the t-q cospectra, the author computed refractive index spectra for light of 0.55-micrometer and millimeter wavelengths. The refractive index spectra had shapes like the other scalar spectra: excess energy at low frequency and an inertial-convective subrange at high frequency.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 50 Seiten , Illustrationen
    Serie: CRREL Report 87-21
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Measurements Spectra u and w velocity spectra Temperature and humidity spectra Inertial-dissipation estimates Cospectra u-w cospectra w-t and w-q cospectra t-q cospectra Refractive index spectra Conclusions Literature cited
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  • 71
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/22
    In: CRREL Report, 87-22
    Beschreibung / Inhaltsverzeichnis: This review discusses problems associated with the anomalous temperature-density relations of water. It covers a) onset of convection, b) temperature structure and natural convective heat transfer, and c) laminar forced convective heat transfer in the water/ice system. The onset of convection in a water/ice system was found to dependent on thermal boundary conditions, not a constant value as in the classical fluids that have a monotonic temperature-density relationship. The water/ice system also exhibits a unique temperature distribution in the melt layer immediately after the critical Rayleigh number is exceeded and soon after it establishes a more or less constant temperature region progressively deepening as the melt layer grows. The constant temperature is approximately 3.2°C for water layers formed from above but varies for melt layers from below. The heat flux across the water/ice interface was found to be a weak power function and to increase linearly with temperature for melted layers from above and below, respectively.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 43 Seiten , Illustrationen
    Serie: CRREL Report 87-22
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Analytical studies on the onset of convection in a horizontal water layer Experimental studies on the onset of convection in a circular horizontal melt layer Temperature structure and heat transfer In a horizontal layer In a circular horizontal melt layer pHeat transfer studies in nonplanar geometries Forced convective heat transfer over a melting surface Discussion and conclusions Onset of convection Temperature structure and natural convective heat transfer Laminar forced convective heat transfer Literature cited
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  • 72
    Signatur: ZSP-201-87/6
    In: CRREL Report, 87-6
    Beschreibung / Inhaltsverzeichnis: Two-phase dielectric mixing model results are presented showing the electromagnetic properties of sea ice versus depth. The modeled data are compared with field measurements and show comparable results. It is also shown how the model data can be used in support of impulse radar and airborne electromagnetic(AEM) remote sensing of sea ice. Examples of the remote measurement of sea ice thickness using impulse radar operating in the 80- to 300-MHz frequency band and low-frequency (500 to 30,000 Hz) sounding techniques are presented and discussed. Keywords: Polar regions; Radar pulses.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vii, 55 Seiten , Illustrationen
    Serie: CRREL Report 87-6
    Sprache: Englisch
    Anmerkung: Contents Abstract Preface Nomenclature Introduction Sea ice growth and structure Model sea ice Brine salinity Seawater and model brine conductivity Complex dielectric constant of brine Electromagnetic properties of model sea ice at 100 MHz Electromagnetic properties of model sea ice at 100 and 500 MHz and 1 and 5 GHz Example of impulse radar sea ice profiling results Example of frequency-domain electromagnetic sea ice thickness sounding Concluding remarks Literature cited
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  • 73
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/20
    In: CRREL Report, 87-20
    Beschreibung / Inhaltsverzeichnis: The structure and salinity characteristics of saline ice slabs removed from ice sheets grown in an outdoor pool have been studied and related to the complex relative dielectric permittivity measured with free-space transmission techniques at 4.80 and 9.50 GHz. The saline ice closely simulated arctic sea ice in its structural and salinity characteristics, which were regularly monitored in a number of ice sheets grown during the winters of 1983-84 and 1984-85. In-situ transmission measurements at similar frequencies were also made on the ice sheets themselves using antennas located above and beneath the ice. The slab measurements were made during warming from -29° to -2°C on slabs grown during the winter of 1983-84 (4.75 GHz) and during a warming and cooling cycle over a slightly larger temperature range on slabs grown during the winter of 1984-85 (4.80 and 9.50 GHz).
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 41 Seiten , Illustrationen
    Serie: CRREL Report 87-20
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Part I - Structural properties Introduction Experimental setup Analytical techniques Results and discussion 1983-84 experiments 1984-85 experiments Conclusions and recommendations Part Il - Microwave properties Introduction Measurement techniques Results 1983-84 experiments 1984-85 experiments 1984-85 in-situ experiments Discussion Comparison of data Analytical modeling Summary and conclusions Literature cited Appendix A: Dielectric mixing model of sea ice
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  • 74
    Monographie ausleihbar
    Monographie ausleihbar
    Basingstoke, Hampshire [u.a.] : Macmillan Education
    Signatur: PIK B 020-19-92667
    Materialart: Monographie ausleihbar
    Seiten: XV, 193 Seiten , Diagramme
    ISBN: 0333365801 (hardcover) , 0333416074 (paperback)
    Sprache: Englisch
    Anmerkung: Contents: 1 Basic concepts ; 2 Cost functions and the theory of the firm ; 3 Elasticity, Efficiency and the theory of the firm ; 4 The Cobb-Douglas function ; 5 The CES function ; 6 The translog function ; 7 Technological progress ; 8 From firms to industry: the Johansen Production Model ; 9 Empirical work on production functions ; Bibliography ; Index
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  • 75
    Signatur: ZSP-201-87/3
    In: CRREL Report, 87-3
    Beschreibung / Inhaltsverzeichnis: This report describes the structural analysis of multi-year sea ice samples that were tested in the first phase of a program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. Each test specimen is classified into one of three major ice texture categories: granular, columnar, or a mixture of columnar and granular ice. The crystallographic orientation, percent columnar ice, and grain size are then evaluated for the granular and/or columnar ice in the sample. Test results are interpreted with respect to these parameters. The overall composition of multi-year ridges is also considered, based on the extensive field sampling that was done in the program
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 40 Seiten , Illustrationen
    Serie: CRREL Report 87-3
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Sample analysis Continuous multi-year ridge core Tested multi-year ridge ice samples Tested multi-year floe ice samples Ice description Uniaxial constant-strain-rate compression tests Uniaxial constant-load compression tests Uniaxial constant-strain-rate tension tests Triaxial constant-strain-rate compression test Conclusions Literature cited Appendix A: Multi-year ridge sample data Appendix B: Multi-year floe sample data
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  • 76
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/10
    In: CRREL Report, 87-10
    Beschreibung / Inhaltsverzeichnis: Uniaxial constant-stress and constant-strain-rate compression tests were conducted on more than 200 remolded, saturated, frozen specimens of Fairbanks silt under various conditions. A series of curves of stress vs strain rate for various temperatures of strain rates ranging from about 6x10-2 to 10-8s-1show a close strength correspondence between the constant-stress and-costant strain-rate tests. All of these "complete" stress vs strain rate curves could not be described by a single power law or exponential equation, indicating that different deformation mechanisms are dominant within different ranges of strainrate Two critical strain rates for distinguishing between the different deformation mechanisms were ob-served to be near 10- 3 and 10-6 s-1 for the medium-dense frozen Fairbanks silt. The former indicates the transition from ductile failure to moderate brittle fracture as strain rate increases, while the latter indicates the transition from dislocation creep to glide creep (by the authors' definition). Based on the change in flow law, two fundamental creeps were classified: short-term creep, which is governed by glide creep, and long-term creep, which is governed by dislocation creep. The failure criterion of frozen silt has a general form of em x tm = Ef, where m depends only on density, and tm is in minutes if m is not 1. The failure strain Ef was not sensitive to temperature and strain rate over a certain range of strain rates, but it was very sensitive to density. Assur's creep model (1980) for ice was used to fit the creep data in this study. It works well for short-term creep but does not fit as well for long-term creep. The rate process theory was applied to the creep data. A very high value of experimental activation energy was obtained for lower stresses, and a very high value of apparent activation energy was observed for higher temperatures. The peak compressive strength was very sensitive to temperature and strain rate but relatively insensitive to density. While the initial tangent modulus is not-sensitive to strain rate, it increases with decreasing temperature and density.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 75 Seiten , Illustrationen
    Serie: CRREL Report 87-10
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Review of previous work Specimen preparation Material Molding Testing procedure and apparatus Test results Definition of strain and stress Definition of creep failure Definition of failure in constant-strain-rate tests Definition of initial yield strength Determination of initial tangent modulus and 50% peak strength modulus Creep behavior General nature of the creep process and the failure mode Minimum creep rate Time to creep failure Relationship between t, and tm Creep failure strain and failure criterion Creep model and prediction of creep strain Strength behavior General stress-strain behavior and failure mode Peak compressive strength Initial yield strength Failure strain Initial yield strain Initial tangent modulus 50% peak strength modulus Correspondence between constant-stress tests and constant-strain-rate tests Conclusions Literature cited Appendix A: Unfrozen water content data Appendix B: Physical properties of samples tested
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  • 77
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/4
    In: CRREL Report, 87-4
    Beschreibung / Inhaltsverzeichnis: In this report we present results of measurements of the crystalline structure and salinity characteristics of sea ice in Hebron Fiord and vicinity, Labrador. Structurally, the fiord ice was entirely first year and composed predominantly of congelation, columnar-type crystals. At most of the sampling sites the ice exhibited moderately to strongly aligned c-axes consistent with the inferred direction of near surface currents in the fiord. Generally diminished values of bulk salinity at five separate locations reflect the warm ice conditions encountered at the time of sampling (late May) and the effect of meltwater flushing in promoting loss of brine, vertically, from the ice sheet. Observations outside Hebron Fiord indicated the presence of only minor amounts of multiyear ice during the latter part of May.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 25 Seiten , Illustrationen
    Serie: CRREL Report 87-4
    Sprache: Englisch
    Anmerkung: Contents: Abstract Preface Introduction Sampling procedure Analytical techniques Salinities Crystal structure Results Salinity Crystal structure Brine layer spacing Incidental temperatures Conclusions Literature cited Appendix A: Vertical and horizontal thin section photographs of sea ice from various sites
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  • 78
    Signatur: ZSP-SCAR-570-9
    In: National Antarctic Research Report to SCAR, No. 9
    Materialart: Schriftenreihen ausleihbar
    Seiten: 34 Seiten
    ISSN: 0179-0072
    Serie: National Antarctic Research Report to SCAR 9
    Sprache: Englisch
    Anmerkung: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Members of Permanent Working Groups and Groups of Specialists of SCAR. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 1986 - October 1987. - II. Planned Activities, October 1987 - October 1988. - References. - Addenda to Former Reports. - Index of Activities.
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  • 79
    Signatur: ZSP-201-87/2
    In: CRREL Report, 87-2
    Beschreibung / Inhaltsverzeichnis: This is the third in a series of four reports on the laboratory and field testing of a number of road and airfield subgrades, covering the laboratory repeated-load triaxial testing of five soils in the frozen and thawed states and analysis of the resulting resilient modulus measurements. The laboratory testing procedures allow simulation of the gradual increase in stiffnessfound in frost-susceptible soils after thawing. The resilient modulus is expressed in a nonlinear model in terms of the applied stresses, the soil moisture tension level (for unfrozen soil), the unfrozen water content (for frozen soil) and the dry density. The resilient modulus is about 10 GPa for the frozen material at temperatures in the range of -5° to -8° C. The decrease in modulus with increasing temperature was well-modeled in terms of the unfrozen water content. Upon thaw, the modulus dropped to about 100 MPa and generally increased with increasing confining stress and decreased with increasing principal stress ratio. The modulus also increased with the soil moisture tension level. The resilient Poisson's ratio did not appear to be a systematic function of any of the test variables.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 36 Seiten , Illustrationen
    Serie: CRREL Report 87-2
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Test sections and materials Specimen preparation Test soils Asphalt concrete Laboratory testing Soil testing Waveforms of applied stress Asphalt concrete Data reduction and analysis Soil Asphalt concrete Results and discussion General Resilient modulus Summary Conclusions Literature cited Appendix A: Soil moisture tension versus water content for several test soils Appendix B: Tabulated results for all tests on frozen and thawed soils
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  • 80
    Signatur: ZSP-201-87/14
    In: CRREL Report, 87-14
    Beschreibung / Inhaltsverzeichnis: During February and March 1980 the physical properties of Weddell Sea pack ice were investigated via core drilling of 66 floes located along the transect of 600 nautical miles from 64°S to 74°S latitude at roughly 40°W longitude. These studies revealed widespread frazil ice in amounts not known to exist in Arctic sea ice of comparable age and thickness. It is estimated from structure studies of 62 of the 66 floes that 54% of the total ice production of the Weddell Sea is generated as frazil. The disposition and exceptional thickness of the frazil show that mechanisms other than surface turbulence effects are involved and imply that the circulation and structure of the water in the upper levels of the Weddell Sea are significantly different from those in the Arctic basin. Salinities of both first-year and multi-year floes are notably higher than those of their Arctic counterparts because summer surface melting is rare or absent in the Weddell Sea; in the Arctic, downward percolating meltwater flushes through the ice and lowers its salinity. Fluorescence was evaluated as a means of revealing biological activity in Weddell Sea pack ice. It proved useful as an index of combined living and dead material in the ice, but measurements failed to establish any consistent relationship between fluorescence and salinity as suggested be earlier work in the Weddell Sea.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 80 Seiten , Illustrationen
    Serie: CRREL Report 87-14
    Sprache: Englisch
    Anmerkung: CONTENTS Preface Introduction Sea ice structure and classification Logistics and field operations Analytical techniques Crystalline structure Fluorescence Results Salinity Crystalline structure Fluorescence Description of selected floes Conclusions Literature cited Appendix A: Floe descriptions
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  • 81
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/13
    In: CRREL Report, 87-13
    Beschreibung / Inhaltsverzeichnis: Thermodynamic properties of electrolyte solutions change rapidly below 25C, but these properties are seldom measured over the low temperature range (below 0C), even though some salt solutions can remain unfrozen to -50C. The heat capacities of concentrated solutions (0.5-0.6 molal) of NaC-H2O were measured from 25C to -40C as part of a study to provide thermodynamic data of salt solutions for use in cold regions chemical and geophysical studies. A differential scanning calorimeter was used to measure specific heat capacity from cooling scans as a function of temperature and concentration. The heat capacity data were fit to the equations of Pitzer and coworkers to obtain activity and osmotic coefficients of NaC and H2O, respectively, below o C. Supercooling of the solutions was encouraged by using a fast scan rate (10d2/minute) so that specific heat could be measured to lower temperatures than would be possible if the solutions were allowed to equilibrate with the solid phases. The solubility of ice was calculated and compared to the experiment freezing point of NaC solutions.
    Materialart: Schriftenreihen ausleihbar
    Seiten: ii, 16 Seiten , Illustrationen
    Serie: CRREL Report 87-13
    Sprache: Englisch
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  • 82
    Monographie ausleihbar
    Monographie ausleihbar
    Beijing [u.a.] : China Ocean Press [u.a.]
    Signatur: PIK N 455-11-0237 ; MOP 47245 / Mitte
    Beschreibung / Inhaltsverzeichnis: Contents: 1. The background of the atmospheric circulation ; 2. Cold outbreak and winter weather ; 3. Cyclone and spring weather ; 4. Rainy season in China (I) ; 5. Rainy season in China (II) ; 6. The subtropical high ; 7. Weather systems on the Tibetan plateau ; 8. Typhoon ; 9. Other tropical weather systems ; 10. Autumn weather
    Materialart: Monographie ausleihbar
    Seiten: 269, [47] Seiten , Illustrationen
    ISBN: 3540167153 , 0-387-16715-3
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
    Standort: MOP - Bitte bestellen
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  • 83
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge : Cambridge University Press
    Signatur: PIK N 630-13-0084 ; AWI Bio-22-20909
    Materialart: Monographie ausleihbar
    Seiten: XII, 178 Seiten , Illustrationen
    ISBN: 0-521-30868-2 , 0-521-54409-2
    Sprache: Englisch
    Anmerkung: Contents Preface Acknowledgements 1 Introduction Terms and abbreviations 2 The biogeographlcal setting Geology, physiography, and surface materials The structural framework Pleistocene geology Bioclimates Arctic and its three subzones Subarctic zone Boreal zone Eastern temperate zone Grassland zone Pacific and Cordilleran zones 3 Autecology and pollen representation Introduction Transcontinental, primarily boreal taxa Eastern, primarily temperate taxa Pacific-Cordilleran taxa Arctic taxa Modern regional pollen spectra The Western Interior The eastern plains transect The Pacific-Cordilleran transect General comments on the modern pollen spectra 4 Full-glacial refugla The southern refugia Pacific-Cordilleran refugia Interior plains and eastern region The Beringian refugia 5 Eastern Canada-fossil record and reconstruction Introduction The late glacial - 12,700 to 10,000 yr BP Southern Quebec and New Brunswick Maritime Canada The Great Lakes Basin Vegetation reconstruction The Holocene - 10,000 yr BP to the present Southern Quebec and New Brunswick The Maritimes, Labrador, and Northern Quebec The Great Lakes Vegetation reconstruction Boreal region 6 The Western Interior Sites near the forest-grassland transition Sites within the modern boreal forest Sites near the modern forest-tundra boundary 7 Pacific-Cordilleran region Southern Pacific zone Southern Cordilleran zone Northern Pacific zone Northern Cordilleran zone 8 Vegetation reconstruction and palaeoenvironments Introduction Origins and history Eastern temperate forests Boreal forest Grasslands and parklands Pacific-Cordilleran complex Tundra (arctic) Palaeoenvironmental controls Climate The Milankovitch model Full-glacial conditions Late-glacial and Holocene Fire Pathogens Paludification Problems for the future Climate disequilibrium Spatial resolution Pollen source area Concluding comments Appendix References Index
    Standort: A 18 - Bitte bestellen
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  • 84
    Signatur: O 6617 ; PIK M 370-90-0053
    Materialart: Monographie ausleihbar
    Seiten: 283 S. : graph. Darst ; 25 cm
    ISBN: 3055003349
    Serie: Mathematical ecology
    Sprache: Englisch
    Standort: Kompaktmagazin oben
    Standort: A 18 - Bitte bestellen
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  • 85
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Berlin : Nationalkomitee für Geodäsie und Geophysik bei der Akademie der Wissenschaften der DDR
    Dazugehörige Bände
    Signatur: Q 2453(II,28) ; MOP Per 581(2/28) ; ZSP-319/B-28
    In: Geodätische und geophysikalische Veröffentlichungen : Reihe 2, Solarterrestrische Beziehungen und Physik der Atmosphäre, Heft 28
    Materialart: Schriftenreihen ausleihbar
    Seiten: 136 Seiten , Illustrationen
    Serie: Geodätische und geophysikalische Veröffentlichungen : Reihe 2, Solarterrestrische Beziehungen und Physik der Atmosphäre 28
    Sprache: Englisch
    Anmerkung: Content: Improvement of the coulometric measurement of ozone in the near-ground layer of the atmosphere / W. Warmbt. - Some experimental data on the variability of the ozone density at different level of the lowest atmosphere / A. G. Amiranashvili ; T. G. Gzirishvili ; A. I. Kartsivadse ; A. M. Okudjava ; D. F. Kharchilava ; K. H. Grasnick. - Report on the intercomparison of instruments measuring ozone near the ground at the Hohenpeissenberg Observatory / W. Warmbt. - Some results of ozone-sonde ascents in the CSSR / J. Picha. - A system of monitoring the observation and calibration qualities of Dobson spectrophotometerswithin the Regional Association VI / P. Plessing. - Vertical ozone distribution over Lindenberg (52.22°N, 14.12°E), 1975 - 1982 / U. Feister ; P. Plessing ; K. H. Grasnick. - Correlations of the total ozone with thermal and dynamic processes in the atmosphere / M. Frimescu ; L. Manea. - Numerical simulation of seasonal-latitudinal and 11-year variations in ozonosphere composition based on the two-dimensional photochemical model / I. G. Dyominov ; A. M. Zadorozhny. - Ozone content variation over central Europe and stratospheric dynamics in late winter / G. Entzian ; K. H. Grasnick. - Long-term ozone variation / G. Entzian ; K. H. Grasnick.
    Standort: MOP - Bitte bestellen
    Standort: AWI Archiv
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  • 86
    Monographie ausleihbar
    Monographie ausleihbar
    Chichester [u.a.] : Wiley
    Signatur: PIK M 370-92-0667 ; AWI A13-92-0307
    Materialart: Monographie ausleihbar
    Seiten: XV, 217 S. , Ill., graph. Darst.
    ISBN: 0471914622
    Serie: Research and developments in climate and climatology
    Sprache: Englisch
    Anmerkung: Contents: Preface. - Acknowledgements. - Chapter 1 Climate. - 1.1 The components of climate. - 1.2 Climate modelling and climate prediction. - 1.3 Climate changes and human perception. - 1.4 Feedback mechanisms in climate. - 1.4.1 The ice-albedo feedback mechanism. - 1.4.2 The water vapour “greenhouse”. - 1.4.3 Cloud feedbacks. - 1.4.4 Combining feedback effects. - 1.5 Perturbations on the climate system. - 1.5.1 External causes of climatic change. - 1.5.2 Internal causes of climatic change. - 1.6 Range of questions for climate modelling. - Recommended reading. - Chapter 2 A history of and introduction to climate models. - 2.1 Introducing climate modelling. - 2.2 Types of climate models. - 2.2.1 Energy balance climate models. - 2.2.2 One-dimensional radiative-convective climate models. - 2.2.3 Two-dimensional climate models. - 2.2.4 General circulation climate models. - 2.3 History of climate modelling. - 2.4 Sensitivity of climate models. - 2.5 Parameterization of climatic processes. - 2.6 Simulation of the full, interacting climate system: one goal of modelling. - Chapter 3 Energy balance models. - 3.1 Balancing the planetary radiation budget. - 3.2 The structure of energy balance models. - 3.3 Parameterizing the climate system for energy balance models. - 3.4 A BASIC energy balance climate model. - 3.5 Experiments with energy balance models. - 3.5.1 Explicit modelling of the cryosphere. - 3.6 Box models — another form of energy balance model. - 3.6.1 A simple box model of the ocean-atmosphere. - 3.6.2 A coupled atmosphere, land and ocean energy balance box model. - 3.7 Energy balance models: deceptively simple models. - Recommended reading. - Chapter 4 Radiative-convective models. - 4.1 The concept of a radiative-convective climate model. - 4.2 The structure of global radiative-convective models. - 4.3 Radiation computation. - 4.3.1 Shortwave radiation. - 4.3.2 Longwave radiation. - 4.3.3 Eleat balance at the ground. - 4.4 Convective adjustment. - 4.5 Sensitivity experiments with radiative-convective models. - 4.6 Development of radiative-convective models. - 4.6.1 Cloud amount and height predicted from ‘convection’. - 4.6.2 A water vapour transport model. - 4.7 Radiation: the driver of climate. - Recommended reading. - Chapter 5 Two-dimensional models. - 5.1 Why two-dimensional models?. - 5.2 Two-dimensional statistical dynamical climate models. - 5.3 Convection, cloud cover and precipitation in two-dimensional statistical dynamical models. - 5.4 Radiation and surface characterization in two-dimensional statistical dynamical models. - 5.4.1 Radiation. - 5.4.2 Surface characterization. - 5.5 Intercomparison of a two-and a three-dimensional model. - 5.6 Other types of two-dimensional models. - 5.6.1 An upgraded energy balance model. - 5.6.2 A severely truncated spectral general circulation climate model. - 5.7 Why are some climate modellers Flatlanders?. - Recommended reading. - Chapter 6 General circulation climate models. - 6.1 The structure of general circulation climate models. - 6.2 Dynamics in general circulation climate models. - 6.2.1 Cartesian (or rectangular) grid general circulation climate models. - 6.2.2 Spectral general circulation climate models. - 6.3 Physics in general circulation climate models. - 6.3.1 Radiative transfer. - 6.3.2 Boundary layer. - 6.3.3 Surface parameterization. - 6.3.4 Convection. - 6.3.5 Large scale rainfall. - 6.4 Including ‘other’ elements in general circulation climate models. - 6.4.1 Cloud prediction. - 6.4.2 Modelling the cryosphere. - 6.5 Land surface parameterization in general circulation climate models. - 6.6 Coupled ocean-atmosphere general circulation climate models. - 6.7 Future climate projects and their importance to general circulation climate models. - 6.8 Epilogue. - Recommended reading. - Appendices. - A. Glossary. - B. Climate models: examples of simple microcomputer software. - I. Daisyworld: a simple biospheric feedback climate model. - II. Modelling the climatic impact of anthropogenerated albedo change. - III. An energy balance climate model (EBM). - IV. Carbon dioxide feedback using a simple ocean model. - General Bibliography. - Index.
    Standort: A 18 - Bitte bestellen
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  • 87
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-86/6
    In: CRREL Report, 86-6
    Beschreibung / Inhaltsverzeichnis: Short-pulse radar profiles and waveform traces were recorded over natural, freshwater ice sheets and an artificially made, 1.6-m-diameter column of brash ice. The purpose was to study the feasibility of this type of radar to detect ice thickness, determine ice properties and distinguish ice forms. The radar utilized two antennas: one with a spectrum centered near 900 MHz and a second more powerful one near 700 MHz. Distinct top and bottom reflections from several ice sheets were produced by both antennas, but the value of dielectric permittivity calculated from the time of delay of the reflections varied between sheets as one ice sheet was ready to candle and contained free water. The brash ice distorted signals and allowed no discernible bottom return. The lower frequency antenna also gave returns from the lake bottom (separated from the ice bottom by about 1 m of water), which could allow ice thickness to be determined indirectly. The report concludes that these antennas can be used to determine sheet ice thickness and to supply information to help in the detection of brash ice. The water content of an ice sheet may also be estimated if independent studies show a correlation between dielectric permittivity and free water content.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 15 Seiten , Illustrationen
    Serie: CRREL Report 86-6
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Materials and methods Sites and site preparation Results and discussion Lake Morey Post Pond Conclusions and recommendations Literature cited
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  • 88
    Signatur: ZSP-201-86/13
    In: CRREL Report, 86-13
    Beschreibung / Inhaltsverzeichnis: Stress-deformation data for six granular soils ranging from sandy silt to dense-graded crushedstone were obtained from in-situ tests and laboratory tests. Surface deflections were measured in the in-situ tests, with repeated-load plate-bearing and falling-weight deflectometer equipment, when the six granular soils were frozen, thawed, and at various stages of recovery from thaw weakening. The measured deflections were used to judge the validity of procedures developed for laboratory triaxial tests to determine nonlinear resilient moduli of specimens in the frozen, thawed, and recovering states. The validity of the nonlinear resilient moduli, expressed as functions of externally applied stress and moisture tension, was confirmed by using the expressions tocalculate surface deflections that were found to compare well with deflections measured in the in-situ tests. The tests on specimens at various stages of recovery are especially significant because they show a strong dependence of the resilient modulus on moisture tension, leading to the conclusion that predictions or in-situ measurements of moisture tension can be used to evaluate expected seasonal variation in the resilient modulus of granular soils.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 148 Seiten , Illustrationen
    Serie: CRREL Report 86-13
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Test sections Installing instruments and sampling Laboratory tests Asphalt concrete Base, subbase and subgrade soils Data analysis for base, subbase and subgrade soils Field tests Analysis of plate loading tests Analytical approach Results Discussion Conclusions Literature cited Appendix A: Field data Appendix B: Ground temperatures, moisture tension, water table and freezing iso-therms prevailing during plate loading tests Appendix C: Measured surface deflections compared with deflections calculated by NELAPAV Appendix D: Resilient moduli and supporting data calculated by NELAPA V at radius 0.0, taxiways A and B.
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  • 89
    Signatur: ZSP-SCAR-570-8
    In: National Antarctic Research Report to SCAR, No. 8
    Materialart: Schriftenreihen ausleihbar
    Seiten: 33 Seiten
    ISSN: 0179-0072
    Serie: National Antarctic Research Report to SCAR 8
    Sprache: Englisch
    Anmerkung: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Members of Permanent Working Groups and Groups of Specialists of SCAR. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 1985 - October 1986. - II. Planned Activities, October 1986 - October 1987. - References. - Addenda to Former Reports. - Index of Activities.
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  • 90
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-86/5
    In: CRREL Report, 86-5
    Beschreibung / Inhaltsverzeichnis: This work presents the results of a study to examine the effects of grain size of internal microfractures in polycrystalline ice. Laboratory-prepared specimens were tested under uniaxial, constant-load creep conditions at -5 C. Grain size ranged from 1.5 to 6.0 mm. This range of grain size, under an initial creep stress of 2.0 MPa, led to a significant change in the character of deformation. The finest-grained material displayed no internal cracking and typically experienced strains of 10 to the minus 2nd power at the minimum creep rate epsilon. The coarse-grained material experienced severe cracking and a drop in the strain at epsilon min to approximately 4x10 to the minus 3rd power. Extensive post-test optical analysis allowed estimation of the size distribution and number of microcracks in the tested material. These data led to the development of a relationship between the average crack size and the average grain size. Additionally, the crack size distribution, when normalized to the grain diameter, was very similar for all specimens tested. The results indicate that the average crack size is approximately one-half the average grain diameter over the stated grain size range. A dislocation pileup model is found to adequately predict the onset of internal cracking. The work employed acoustic emission techniques to monitor the fracturing rate occurred. Other topics covered in this report include creep behavior, crack healing, the effect of stress level on fracture size and the orientation of cracked grains. Theoretical aspects of the grain size effect on material behavior are also given.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 79 Seiten , Illustrationen
    Serie: CRREL Report 86-5
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Background Present research in perspective Explanations of the grain-size dependency Grain size effects on the ductile to brittle transition Nucleation mechanisms and modeling Characteristic size of nucleated crack Cracking in ice Detection of internal fracturing by acoustic emission techniques Test methods Specimen preparation Creep testing apparatus Crack length and crack density measurements Crack healing measurements Thin section photographs Grain size determination Acquisition of acoustic emission data Presentation of results Specimen characteristics Microcrack measurements Creep behavior Crack healing Slip plane length distribution Acoustic emission observations Grain orientation Analysis and discussion Thick section observations The grain size vs crack size relationship Crack nucleation condition Crack density and specimen strain Creep behavior Normalized crack length Location of cracks Acoustic emission activity Summary and conclusions Suggestions for future work Literature cited Appendix A: Crack length histograms Appendix B: Crystal orientations
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  • 91
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-86/14
    In: CRREL Report, 86-14
    Beschreibung / Inhaltsverzeichnis: Three methods for determining the frost susceptibility of soils are evaluated in this report. These methods are the U.S. Army Corps of Engineers frost design soil classification system, a moisture-tension/hydraulic-conductivity test, and a laboratory freeze-thaw test. The Corps method, which is based on particle size, soil classification, and a laboratory freezing test, was found to be useful for identifying frost-susceptibility. The moisture-hydraulic-conductivity test was found to be unacceptable because it required too much time and its results correlated poorly with field observations. The freeze-thaw test was determined to be the most accurate of the methods studied, including the freeze test that is a part of the Corps method. The freeze-thaw test is thoroughly described. It includes indexes of both frost-heave susceptibility (heave rate) and thaw-weakening susceptibility (CBR after thawing). It also accounts for the effects of freeze-thaw cycling and is completely automated to improve the repeatability of the test results. It is suggested that the freeze-thaw test considered as a replacement for the Corps freezing test.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 56 Seiten , Illustrationen
    Serie: CRREL Report 86-14
    Sprache: Englisch
    Anmerkung: Contents Abstract Preface Introduction Description of the selected sites Corps of engineers frost design soil classification system Moisture-tension/hydraulic-conductivity tests Freezing test Validation Description of test sites and materials Sample preparation Results and analysis of laboratory tests Corps of engineers frost design soil classification system Moisture-tension/hydraulic-conductivity test Freezing test Discussion Conclusions Recommendations Literature cited Appendix A: Summary of frost-susceptibility tests on natural soil
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  • 92
    Signatur: ZSP-201-86/12
    In: CRREL Report, 86-12
    Beschreibung / Inhaltsverzeichnis: Stress-deformation data for six granular soils ranging from sandy silt to dense-graded crushed stone were obtained from in-situ tests and laboratory tests. Surface deflections were measured in the in-situ tests, with repeated-load plate-bearing and falling-weight deflectometer equipment, when the six granular soils were frozen, thawed, and at various stages of recovery from thaw weakening. The measured deflections were used to judge the validity of procedures developed for laboratory triaxial tests to determine nonlinear resilient moduli of specimens in the frozen, thawed, and recovering states. The validity of the nonlinear resilient moduli, expressed as functions of externally applied stress and moisture tension, was confirmed by using the expressions to calculate surface deflections that were found to compare well with deflections measured in the in-situ tests. The tests on specimens at various stages of recovery are especially significant because they show a strong dependence of the resilient modulus on moisture tension, leading to the conclusion that predictions or in-situ measurements of moisture tension can be used to evaluate expected seasonal variation in the resilient modulus of granular soils.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 70 Seiten , Illustrationen
    Serie: CRREL Report 86-12
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Sampling of test section Laboratory tests Asphalt concrete Natural subgrade material Test soils Field tests Analysis of field-loading tests Discussion Conclusions Literature cited Appendix A: Field data Appendix 8: Ground temperatures prevailing during plate-loading tests Appendix C: Measured surface deflections compared with deflections calculated by NELAPAV Appendix D: Resilient moduli and supporting data calculated by NELAPAV
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  • 93
    Signatur: ZSP-201-86/18
    In: CRREL Report, 86-18
    Beschreibung / Inhaltsverzeichnis: Findings from a six-year yield and laboratory program of frost action research in four principal areas are summarized. Research on the first topic, frost susceptibility index tests, led to selection of the Corps of Engineers frost design soil classification system as a useful method at the simplest level of testing. At a much more complex level, a new freezing test combined with a CBR test after thawing is recommended as an index of susceptibility to both frost heave and thaw weakening. Under the second topic, a soil column and dual gamma system were developed and applied to obtain soil data used in improving and validating a mathematical model of frost heave, the objective of the third research topic. The model was effectively improved, a probabilistic component was added, and it was successfully tested against field and laboratory measurements of frost heave. A thaw consolidation algorithm was added, which was shown to be useful in predicting the seasonal variation in resilient modulus of granular soils, the objective of the fourth topic. A laboratory testing procedure was developed for assessing the resilient modulus of thawed soil at various stages of the recovery process, as a function of the applied stress and the soil moisture tension, which increases as the soil gradually desaturates during recovery. The procedure was validated by means of appropriate analyses of deflections measured on pavements by a falling-weight deflectometer. Frameworks for implementing findings from the principal research topics are outlined. Keywords: Airfields, Freezing thawing, Frost heave, Frozen soil, Resilient modulus, Roads.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 52 Seiten , Illustrationen
    Serie: CRREL Report 86-18
    Sprache: Englisch
    Anmerkung: Contents Abstract Preface Introduction Field test sites Frost-susceptibility index testing Index tests selected Laboratory test results Conclusions Soil column and dual gamma system Design features Test results Mathematical model of frost heave and thaw settlement Model development Numerical approach Probabilistic concepts Model verification Discussion Seasonal variation in the resilient modulus of granular soils Characterization by laboratory testing Field verification Summary of predictive approach Simulating frost heave and pavement deflection Method of evaluation Results and discussion Summary of findings Frost-susceptibility index tests Soil column and dual gamma system Mathematical model of frost heave and thaw settlement Seasonal variation in resilient modulus of granular soils Implementation of research findings Corps of engineers frost design soil classification system New laboratory freeze-thaw test Frost-heave model Repeated-load triaxial test on frozen and thawed soil Evaluation of seasonal variation of resilient modulus Literature cited
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  • 94
    Monographie ausleihbar
    Monographie ausleihbar
    New York [u.a.] : Wiley [u.a.]
    Signatur: PIK M 490-19-93049
    Materialart: Monographie ausleihbar
    Seiten: XV, 329 Seiten , Illustrationen, Diagramme , 25 cm
    ISBN: 0471849677 , 2705659803
    Originaltitel: L'ordre dans le chaos 〈engl.〉
    Sprache: Englisch
    Standort: A 18 - Bitte bestellen
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  • 95
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-86/17
    In: CRREL Report, 86-17
    Beschreibung / Inhaltsverzeichnis: Rime icing and freezing precipitation are of concern to the radio and television broadcasting industry. This report contains the results of a study seeking to document the severity and extent of transmitter tower icing and related problems in the northeastern United States. Information was obtained via mail questionnaire and telephone interviews with 85 station owners and engineers concerning 118 different stations. Results show that television and FM broadcasters are seriously impacted by tower icing; however, AM operators are usually not affected by expected New England icing levels. Combined annual costs for icing protection and icing-related repairs averaged $121, $402 and $3066 for AM, FM and TV stations respectively. None of the AM stations polled employ any icing protection in the three northern states averaged 80%, indicating a significant concern for icing in that region. In contrast, the percentage of FM stations with icing protection was 63.5% for the southern New England states. The usage of guyed versus non-guyed towers was a poor indicator of icing costs. However, the factors of increasing mast height and mast top elevation are significant to increasing costs.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 52 Seiten , Illustrationen
    Serie: CRREL Report 86-17
    Sprache: Englisch
    Anmerkung: Contents Abstract Preface Introduction Background Types of accretions Problems caused by icing Prevention and shedding methods Results The survey Data presentation Discussion Survey response distribution Effect of icing protection on parameter averages Effect of tower type on parameter averages Moderate and more severe icing locations Relationship of climate, geography and topography to icing severity Total annual costs Conclusions Literature cited Appendix A: Tower icing survey Appendix B: Station summaries
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  • 96
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-86/2
    In: CRREL Report, 86-2
    Beschreibung / Inhaltsverzeichnis: The behavior of reinforced and unreinforced concrete beams was studied under impact loading at low temperatures, and the results were compared to the behavior of reinforcing steel (rebar) in Charpy-V impact tests. Transition temperatures as low as -30°C were obtained for the rebars in the Charpy-V tests whereas no brittle failures occured in the rebars in the reinforced concrete beams at the temperature as low as -63°C, even in beams whe're the rebars were Intentionally notched. The impact strength of unreinforced concrete increases considerably at lower temperatures, thus reducing cracking of reinforcedconcrete structures and significantly increasing the safety of lightly reinforced structures.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 25 Seiten , Illustrationen
    Serie: CRREL Report 86-2
    Sprache: Englisch
    Anmerkung: Abstract Preface Introduction Tests Test specimens Test methods Results Impact strength of beanms Ductility of beams Effect of notched bars Elastic deflection of beams Impact tests on rebars Conclusions and summary Literature cited Appendix A: Beam crack patterns Appendix B: Photomicrographs of failure surfaces of some steels
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  • 97
    Signatur: ZSP-201-86/3
    In: CRREL Report, 86-3
    Beschreibung / Inhaltsverzeichnis: Experiments to study the melting of a horizontal ice sheet with a flow of water above it were conducted in a 35 m long refrigerated flume with a cross section of 1.2x1.2 m. Water depth, temperature, and velocity were varied as well as the temperature and initial surface profile of the ice sheet. The heat transfer regimes were found to consist of forced turbulent flow at high Reynolds numbers with a transition to free convection heat transfer. There was no convincing evidence of a forced laminar regime. The data were correlated for each of the regimes, with the Reynolds number, Re, or the Grashof number combined with the Reynolds number as Gr/Re to the 2.5 power used to characterize the different kinds of heat transfer. For water flowing over a horizontal ice sheet, the melting heat flux, for low flow velocities, was not found to drop below the value for the free convection case-488.5 W/sq m-as long as the water temperature exceeds 3.4 C. This is significant since the free convection melt values far exceed those for laminar forced convection. At the low flow velocities, the melting flux was not dependent upon the fluid temperature until the water temperature dropped below 3.4 C, when q sub c = 135.7 (Delta T). In general, the heat transfer was found to significantly exceed that of non-melting systems for the same regimes. This was attributed to increased free stream turbulence, thermal instability due to the density maximum of water near 4 C, and the turbulent eddies associated with the generation of a wavy ice surface during the melting.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vii, 85 Seiten , Illustrationen
    Serie: CRREL Report 86-3
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Non-melting heat transfer relations for horizontal surfaces Heat transfer for melting horizontal ice sheets Instrument setup, data acquisition and test procedures General Instrumentation Data acquisition Computer software Test procedures Data output from computer Equations used for data analysis Control volume and melting surface Control of variables Error analysis Experimental results and discussion Wave formation Temperature and velocity profiles in open channel flow Correlation of data Summary Literature cited Appendix A: Conversion equations for data acquisition equipment Appendix B: Computer code for data acquisition and analysis Appendix C: Typical test output Appendix D: Thermal properties of water and ice Appendix E: Error analysis Appendix F: Summary of test conditions Appendix G: Experimental data and calculated quantities, with inlet length
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  • 98
    Schriftenreihen ausleihbar
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-86/8
    In: CRREL Report, 86-8
    Beschreibung / Inhaltsverzeichnis: In this work, numerical computations of heat transfer for freezing a shaft wall have been conducted. Both fixed mesh and deforming mesh finite-element methods are used. In the fixed mesh method, latent heat effects are accounted for through a δ function in the apparent heat capacity. In the deforming mesh method, an automatic mesh-generation technique with transfinite mappings is used, and in this method two different approaches are taken to evaluate the movement of the interface. The freeze-pipes are considered as point sources with irregular distribution. The advancement of the inner and outer boundaries of the frozen wall is found to be in agreement with the previously computed results
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 31 Seiten , Illustrationen
    Serie: CRREL Report 86-8
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Basic finite-element formulas Description of problem Finite-element equation-fixed mesh Finite-element equation-deforming mesh Transfinite mapping technique Computations and conclusions Literature cited Appendix A : Point heat sources Appendix B: Evaluation of the integral including latent heat (fixed mesh) Appendix C: Specification of [K] -deforming mesh Appendix D: Specifying δΤ/δn and the direction of mj for method I Appendix E: Procedures of method 2 Appendix F: Explanation of programs
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  • 99
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-86/9
    In: CRREL Report, 86-9
    Beschreibung / Inhaltsverzeichnis: The bulk aerodynamic transfer coefficients for sensible (C sub H) and latent (C sub E) heat over snow and sea ice surfaces are necessary for accurately modeling the surface energy budget but are very difficult to measure. This report therefore presents a theory that predicts C sub H and C sub E as functions of the wind speed and a surface roughness parameter. The crux of the model is establishing the interfacial sublayer profiles of the scalars, temperature and water vapor, over aerodynamically smooth and rough surfaces. These interfacial sublayer profiles are delivered from surface-renewal model in which turbulent eddies continually sweep down to the surface, transfer scalar contaminants across the interface by molecular diffusion, and then burst away. Matching the interfacial sublayer profiles with the usual semilogarithmic inertial sublayer profiles yields the roughness lengths for temperature and water vapor. With these and a model for the drag coefficient over snow and sea ice based on actual measurements, the transfer coefficients are predicted. C sub E is always a few percent larger than C and H. Both decrease monotonically with increasing wind speed for speeds above 1 m/s, both increase at all winds speeds as the surface gets rougher. Both, nevertheless, are almost between 0.0010 and 0.0015.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 26 Seiten , Illustrationen
    Serie: CRREL Report 86-9
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Aerodynamically rough surface Aerodynamically smooth surface Scalar transfer coefficients Conclusions Literature cited
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  • 100
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    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-86/7
    In: CRREL Report, 86-7
    Beschreibung / Inhaltsverzeichnis: Nitrogen control in the form of ammonia removal or conversion is required, or will be required, for a significant number of military wastewater treatment systems. This reportpresents a summary of engineering criteria for those processes in most common use at military facilities in the cold regions. These processes include: trickling filters, treatmentponds, rotating biological contactors (RBC) and activated sludge. A design example is presented for each case. All four processes can achieve significant levels of ammonia removalor conversion. If ammonia discharge limits are 0.5 mg/L or less it may be necessary to use the activated sludge process. Trickling filters or RBC units are recommended for higher(〉 1 mgIL) discharge limits. Pond systems are suitable for seasonal ammonia removal incold climates.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 29 Seiten , Illustrationen
    Serie: CRREL Report 86-7
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Background and theory Trickling filters Introduction Design procedure Design example Winter operations Pond systems Introduction Design procedure Design example Winter operations Rotating biological contactors Introduction Design procedure Design example Winter operations Activated sludge systems Introduction Design procedure Design example Winter operations Comparison of alternatives Conclusions Literature cited
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