Download or read book Data report on fission product release deposition and transport during the BTF 104 experiment written by P. H. Elder and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of fission product release deposition and transport during the BTF 104 experiment written by R. S. Dickson and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The BTF 104 experiment an in reactor test of fuel behaviour and fission product release and transport under loca loECC conditions written by L. W. Dickson and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A plan for fission product release data acquisition and analysis in the BTF 104 test written by D. S. Cox and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fission Product Behavior During the PBF Power Burst Facility Severe Fuel Damage Test 1 1 written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to the accident at Three Mile Island Unit 2 (TMI-2), the United States Nuclear Regulatory Commission (USNRC) initiated a series of Severe Fuel Damage tests that were performed in the Power Burst Facility at the Idaho National Engineering Laboratory to obtain data necessary to understand (a) fission product release, transport, and deposition; (b) hydrogen generation; and (c) fuel/cladding material behavior during degraded core accidents. Data are presented about fission product behavior noted during the second experiment of this series, the Severe Fuel Damage Test 1-1, with an in-depth analysis of the fission product release, transport, and deposition phenomena that were observed. Real-time release and transport data of certain fission products were obtained from on-line gamma spectroscopy measurements. Liquid and gas effluent grab samples were collected at selected periods during the test transient. Additional information was obtained from steamline deposition analysis. From these and other data, fission product release rates and total release fractions are estimated and compared with predicted release behavior using current models. Fission product distributions and a mass balance are also summarized, and certain probable chemical forms are predicted for iodine, cesium, and tellurium. An in-depth evaluation of phenomena affecting the behavior of the high-volatility fission products - xenon, krypton, iodine, cesium, and tellurium - is presented. Analysis indicates that volatile release from fuel is strongly influenced by parameters other than fuel temperature. Fission product behavior during transport through the Power Burst Facility effluent line to the fission product monitoring system is assessed. Tellurium release behavior is also examined relatve to the extent of Zircaloy cladding oxidation. 81 fig., 53 tabs.
Download or read book Examination of the in reactor stainless steel and inconel 600 deposition coupons from the BTF 104 experiment written by L. W. Dickson and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the behaviour of candu fuel under accident conditions is important for licensing current candu-phw reactors and for improving the safety performance of future candu designs. the btf in-reactor severe fuel damage experiments are being performed to increase our understanding of fuel thermo-mechanical behaviour, and fission-product release and transport under the degraded-cooling conditions typical of loss-of-coolant accident (loca) and loss-of-emergency-core-cooling (loecc) accident scenarios. data from the btf experiments will be used to benchmark candu safety analysis codes. this study of the fission-product retention characteristics of stainless steel and inconel surfaces was partially funded as an "in-kind" contribution to the phebus fp research program within the framework of the cog-phebus fp agreement. the primary objective of the btf-104 test was to determine the amount and timing of fission-product release from a candu fuel element under loca/loecc conditions resulting in a volume-average fuel temperature of 1550 degrees c. the value of this report is that it presents the results of a comparison of the fission-product retention characteristics of stainless steel and inconel at 500 to 700 degrees c in a steam-hydrogen atmosphere. the tellurium retention was similar on the two materials but the iodine and cesium were retained more effectively by the stainless steel. the implications of this work are that stainless steel piping surfaces are more effective than inconel surfaces in reducing the amount of iodine and cesium released to the containment under loca/loecc conditions.
Download or read book Operational plan for conducting the BTF 105a test in the blowdown test facility of the NRU reactor written by E. P. Stock and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The btf-105 experiment in the blowdown test facility is one of a series of experiments sponsored by the candu owners group (cog) to determine the release, transport and deposition of fission products from nuclear fuel under high-temperature transient conditions. the btf-105 experiment has been broken up into two tests: btf-105a and btf-105b. the btf-105a test is a precursor to the btf-105b test, which will generate fission product release data used to benchmark candu safety analysis codes. the btf-105a test will be used to assess instrumentation and procedures to be used during btf-105b, and to generate correlations between fuel sheath and fuel centreline temperatures. fission product release and transport data will also be obtained from low burnup fuel. the btf-105a test consists of a fuel stringer containing a single unirradiated instrumented zircaloy-clad uo2 fuel element. the assembly will be irradiated at a linear power of 50 kw/m for 10 days to establish an inventory of fission products in the fuel. following the soak irradiation, the stringer will be subjected to a coolant blowdown where the volume average temperature of the uo2 will rise to and be maintained at about 1600-1800 degrees c for about 10 minutes. the fuel element is predicted to fail during the ramp up to this temperature due to complete oxidation of the sheath. fission products released during the transient will be monitored by gamma spectrometers. following the test, the fuel stringer will be removed from the reactor and destructively examined in the crl hot cells. grab samples from inside the test section will also be removed and analyzed for fission products. this report presents an overall plan for the activities to be completed before, during and after the btf-105a blowdown test.
Download or read book EPA 520 1 written by and published by . This book was released on 1979 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lecture Notes on Beam Instrumentation and Diagnostics written by Peter Forck and published by . This book was released on 2015-01-10 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lecture Notes on Beam Instrumentation and DiagnosticsBy Peter Forck
Download or read book Nutrient Requirements of Nonhuman Primates written by National Research Council and published by National Academies Press. This book was released on 2003-03-01 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new release presents the wealth of information gleaned about nonhuman primates nutrition since the previous edition was published in 1978. With expanded coverage of natural dietary habits, gastrointestinal anatomy and physiology, and the nutrient needs of species that have been difficult to maintain in captivity, it explores the impact on nutrition of physiological and life-stage considerations: infancy, weaning, immune function, obesity, aging, and more. The committee also discusses issues of environmental enrichment such as opportunities for foraging. Based on the world's scientific literature and input from authoritative sources, the book provides best estimates of nutrient requirements. The volume covers requirements for energy: carbohydrates, including the role of dietary fiber; proteins and amino acids; fats and fatty acids; minerals, fat-soluble and water-soluble vitamins; and water. The book also analyzes the composition of important foods and feed ingredients and offers guidelines on feed processing and diet formulation.
Download or read book Environmental Mineralogy written by J. D. Cotter-Howells and published by . This book was released on 2000 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petroleum Geoscience written by Jon G. Gluyas and published by John Wiley & Sons. This book was released on 2013-04-25 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Petroleum Geoscience is a comprehensive introduction to the application of geology and geophysics to the search for and production of oil and gas. Uniquely, this book is structured to reflect the sequential and cyclical processes of exploration, appraisal, development and production. Chapters dedicated to each of these aspects are further illustrated by case histories drawn from the authors' experiences. Petroleum Geoscience has a global and 'geo-temporal' backdrop, drawing examples and case histories from around the world and from petroleum systems ranging in age from late-Pre-Cambrian to Pliocene. In order to show how geoscience is integrated at all levels within the industry, the authors stress throughout the links between geology and geophysics on the one hand, and drilling, reservoir engineering, petrophysics, petroleum engineering, facilities design, and health, safety and the environment on the other. Petroleum Geoscience is designed as a practical guide, with the basic theory augmented by case studies from a wide spread of geographical locations. Covers all the key aspects of the origin of petroleum, exploration, and production. It takes account of the modern emphasis on the efficient utilisation of reserves, on new methods in exploration (such as 3-D seismics). Book takes 'value-chain' approach to Petroleum Geoscience. First new text on petroleum geology for geology undergraduates to be published in the last ten years. Packed full of real-life case studies from Petroleum industry.
Download or read book Strategic Management of Marine Ecosystems written by Eugene Levner and published by Springer Science & Business Media. This book was released on 2006-05-06 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: The demand for advanced management methods and tools for marine ecosystems is increasing worldwide. Today, many marine ecosystems are significantly affected by disastrous pollution from industrial, agricultural, municipal, transportational, and other anthropogenic sources. The issues of environmental integrity are especially acute in the Mediterranean and Red Sea basins, the cradle of modern civilization. The drying of the Dead Sea is one of the most vivid examples of environmental disintegration with severe negative consequences on the ecology, industry, and wildlife in the area. Strategic management and coordination of international remedial and restoration efforts is required to improve environmental conditions of marine ecosystems in the Middle East as well as in other areas. The NATO Advanced Study Institute (ASI) held in Nice in October 2003 was designed to: (1) provide a discussion forum for the latest developments in the field of environmentally-conscious strategic management of marine environments, and (2) integrate expertise of ecologists, biologists, economists, and managers from European, American, Canadian, Russian, and Israeli organizations in developing a framework for strategic management of marine ecosystems. The ASI addressed the following issues: Key environmental management problems in exploited marine ecosystems; Measuring and monitoring of municipal, industrial, and agricultural effluents; Global contamination of seawaters and required remedial efforts; Supply Chain Management approach for strategic coastal zones management and planning; Development of environmentally friendly technologies for coastal zone development; Modeling for sustainable aquaculture; and Social, political, and economic challenges in marine ecosystem management.
Download or read book Signaling Mediated Control of Cell Division written by Swathi Arur and published by Springer. This book was released on 2017-02-28 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume covers the current knowledge base on the role of signaling and environmental pathways that control the normal development of germline stem cells, meiotic progression of oocytes, events of oocyte maturation and fertilization, and the birth of an embryo. Germ cells are uniquely poised to sustain life across generations through the fusion of oocyte and sperm. Because of the central importance of germ cells to life, much work has been dedicated to obtaining a clear understanding of the molecular and signaling events that control their formation and maintenance. Germ cells are set aside from somatic cells in the embryo and go through specialized meiotic cell cycles as the animal matures. These cell cycles are interspersed with long periods of arrest. In human females, meiosis I is initiated in the fetus. At birth, oocytes are arrested in meiosis I; after puberty, every month an oocyte initiates meiosis II – ovulation. Upon sperm availability these cells are fertilized, generate an embryo, and the cycle-of-life continues. During meiotic I progression and arrest, the fitness of oocytes and their progeny are likely influenced by environmental cues and signaling pathways. A lot of recent work has focused on understanding the mechanisms that regulate oocyte fitness and quality in humans and vertebrates. Much of our understanding on the events of meiosis I and germline stem cell populations comes from work in invertebrates, wherein the germline stem cells produce oocytes continuously through adult development. In both inverbrates and vertebrates nutritional and signaling pathways control the regulation of stem cells in such a manner so as to couple production of gametes with the nutritional availability. Additionally, mature oocytes arrest both in meiosis I and meiosis II, and signaling and nutritional pathways have been shown to regulate their formation, and maintenance, such that despite long periods of arrest, the oocyte quality is assured and errors in chromosome segregation and varied cytoplasmic events are minimal.
Download or read book Environment and Society written by Paul Robbins and published by John Wiley & Sons. This book was released on 2022-03-17 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive yet accessible introduction to the conceptual tools used to explore real-world environmental problems Environment and Society: A Critical Introduction, Third Edition demonstrates how theoretical approaches such as environmental ethics, political economy, and social construction work as conceptual tools to identify and clarify contemporary environmental issues. Assuming no background knowledge in the subject, this reader-friendly textbook uses clear language and engaging examples to first describe nine key conceptual tools, and then apply them to a variety of familiar objects—from bottled water and French fries to trees, wolves, and carbon dioxide. Throughout the text, highly accessible chapters provide insight into the relationship between the environment and present-day society. Divided into two parts, the text begins by explaining major theoretical approaches for interpreting the environment-society relationship and discussing different perspectives about environmental problems. Part II examines a series of objects, each viewed through a sample of the theoretical tools from Part I, helping readers think critically about critical environmental topics such as deforestation, climate change, the global water supply, and hazardous e-waste. This fully revised third edition stresses a wider range of competing ways of thinking about environmental issues and features additional cases studies, up-to-date conceptual understandings, and new chapters in Part I on racializd environments and feminist approaches. Environment and Society: A Critical Introduction, Third Edition: Covers theoretical lenses such as commodities, environmental ethics, and risks and hazards, and applies them to touchstone environment-society objects like wolves, tuna, trees, and carbon dioxide Uses a conversational narrative to explain key historical events, topical issues and policies, and scientific concepts Features substantial revisions and updates, including new chapters on feminism and race, and improved maps and illustrations Includes a wealth of in-book and online resources, including exercises and boxed discussions, chapter summaries, review questions, references, suggested readings, an online test bank, and internet links Provides additional instructor support such as suggested teaching models, full-color PowerPoint slides, and supplementary teaching material Retaining the innovative approach of its predecessors, Environment and Society: A Critical Introduction, Third Edition remains the ideal textbook for courses in environmental issues, environmental science, and nature and society theory.
Download or read book Toxicological Chemistry and Biochemistry Third Edition written by Stanley E. Manahan and published by CRC Press. This book was released on 2002-09-25 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book bridges the gap between toxicology and chemistry at a level understandable by a wide spectrum of readers with various interests and a broad range of backgrounds in chemistry, biochemistry, and toxicology. The third edition has been thoroughly updated and expanded to reflect recent advances in important areas of research, including toxicogenetics and toxic effects on various body systems. Toxicological Chemistry and Biochemistry, Third Edition begins by outlining the basic concepts of general chemistry, organic chemistry, and biochemistry needed to understand the topics in the book. The author then presents an overview of environmental chemistry so that you can understand the remainder of the material covered within that framework. He also discusses biodegradation, bioaccumulation, and biochemical processes that occur in water and soil. The new chapter on toxic effects considers toxicities to the endocrine and reproductive systems, and the section on xenobiotics analysis deals with the determination of toxicants and their metabolites in blood and other biological materials. The chapter on the genetic aspects of toxicology discusses the ways in which chemical damage to DNA can cause mutations, cancer, and other toxic effects on specific body systems, and it considers the role of genetics in determining individual susceptibilities to various toxicants. Toxicological Chemistry and Biochemistry, Third Edition retains the basic information and structure that made the first two editions popular with students and industry professionals, while enhancing the usefulness of the book and modernizing it in important areas. Review questions and supplementary references at the end of each chapter round out the third edition of this bestselling work.
Download or read book The Stefan Problem written by L. I. Rubinšteĭn and published by American Mathematical Soc.. This book was released on 2000-01-25 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: Translations of Mathematical Monographs
