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Author : Rob Hunt,I. H. Christensen
Publisher : Unknown
Page : 21 pages
File Size : 40,9 Mb
Release : 2000
Category : Electronic books
ISBN : 1876679131
Author : United States. Environmental Protection Agency. Office of Water Planning and Standards
Publisher : Unknown
Page : 32 pages
File Size : 52,9 Mb
Release : 1979
Category : Water
ISBN : MINN:31951002860670W
Author : Daoliang Li,Yingyi Chen
Publisher : Springer Science & Business Media
Page : 586 pages
File Size : 47,9 Mb
Release : 2012-01-12
Category : Computers
ISBN : 9783642272806
The three-volume set IFIP AICT 368-370 constitutes the refereed post-conference proceedings of the 5th IFIP TC 5, SIG 5.1 International Conference on Computer and Computing Technologies in Agriculture, CCTA 2011, held in Beijing, China, in October 2011. The 189 revised papers presented were carefully selected from numerous submissions. They cover a wide range of interesting theories and applications of information technology in agriculture, including simulation models and decision-support systems for agricultural production, agricultural product quality testing, traceability and e-commerce technology, the application of information and communication technology in agriculture, and universal information service technology and service systems development in rural areas. The 62 papers included in the first volume focus on decision support systems, intelligent systems, and artificial intelligence applications.
Author : Claude E. Boyd
Publisher : Springer Nature
Page : 440 pages
File Size : 53,5 Mb
Release : 2019-09-12
Category : Science
ISBN : 9783030233358
This volume is of great importance to humans and other living organisms. The study of water quality draws information from a variety of disciplines including chemistry, biology, mathematics, physics, engineering, and resource management. University training in water quality is often limited to specialized courses in engineering, ecology, and fisheries curricula. This book also offers a basic understanding of water quality to professionals who are not formally trained in the subject. The revised third edition updates and expands the discussion, and incorporates additional figures and illustrative problems. Improvements include a new chapter on basic chemistry, a more comprehensive chapter on hydrology, and an updated chapter on regulations and standards. Because it employs only first-year college-level chemistry and very basic physics, the book is well-suited as the foundation for a general introductory course in water quality. It is equally useful as a guide for self-study and an in-depth resource for general readers.
Author : Robert G. Wetzel,Gene Likens
Publisher : Unknown
Page : 408 pages
File Size : 54,6 Mb
Release : 2014-01-15
Category : Electronic
ISBN : 1475740999
Author : Thomas Lawson
Publisher : Springer Science & Business Media
Page : 361 pages
File Size : 50,6 Mb
Release : 2013-04-17
Category : Science
ISBN : 9781461570479
Aquaculture is the science and technology of balanced support from the biological and engi producing aquatic plants and animals. It is not neering sciences. However, commercial aqua new, but has been practiced in certain Eastern culture has become so complex that, in order to cultures for over 2,000 years. However, the role be successful, one must also draw upon the ex of aquaculture in helping to meet the world's pertise of biologists, engineers, chemists, econ food shortages has become more recently ap omists, food technologists, marketing special parent. ists, lawyers, and others. The multidisciplinary The oceans of the world were once consid approach to aquaculture production became ap ered sources of an unlimited food supply. Bio parent during the early 1990s. It is believed that logical studies indicate that the maximum sus this trend will continue as aquaculture produc tainable yield of marine species through the tion becomes more and more intensive in order harvest of wild stock is 100 million MT (metric for the producer to squeeze as much product as tons) per year. Studies also indicate that we are possible out of a given parcel of land. Although many aquaculture books exist, few rapidly approaching the maximum sustainable yield of the world's oceans and major freshwa explore the engineering aspects of aquaculture ter bodies. Per capita consumption of fishery production.
Author : Anonim
Publisher : DIANE Publishing
Page : 256 pages
File Size : 49,8 Mb
Release : 1997
Category : Biochemical oxygen demand
ISBN : UCR:31210024719971
Author : Charles E. Warren,Peter Doudoroff,Dean L. Shumway
Publisher : Unknown
Page : 150 pages
File Size : 52,5 Mb
Release : 1973
Category : Biochemical oxygen demand
ISBN : UOM:39015049054482
Author : Roland N. Pittman
Publisher : Biota Publishing
Page : 117 pages
File Size : 54,8 Mb
Release : 2016-08-18
Category : Medical
ISBN : 9781615047215
This presentation describes various aspects of the regulation of tissue oxygenation, including the roles of the circulatory system, respiratory system, and blood, the carrier of oxygen within these components of the cardiorespiratory system. The respiratory system takes oxygen from the atmosphere and transports it by diffusion from the air in the alveoli to the blood flowing through the pulmonary capillaries. The cardiovascular system then moves the oxygenated blood from the heart to the microcirculation of the various organs by convection, where oxygen is released from hemoglobin in the red blood cells and moves to the parenchymal cells of each tissue by diffusion. Oxygen that has diffused into cells is then utilized in the mitochondria to produce adenosine triphosphate (ATP), the energy currency of all cells. The mitochondria are able to produce ATP until the oxygen tension or PO2 on the cell surface falls to a critical level of about 4–5 mm Hg. Thus, in order to meet the energetic needs of cells, it is important to maintain a continuous supply of oxygen to the mitochondria at or above the critical PO2 . In order to accomplish this desired outcome, the cardiorespiratory system, including the blood, must be capable of regulation to ensure survival of all tissues under a wide range of circumstances. The purpose of this presentation is to provide basic information about the operation and regulation of the cardiovascular and respiratory systems, as well as the properties of the blood and parenchymal cells, so that a fundamental understanding of the regulation of tissue oxygenation is achieved.
Author : John D. Stednick
Publisher : Springer Science & Business Media
Page : 321 pages
File Size : 54,6 Mb
Release : 2007-12-03
Category : Technology & Engineering
ISBN : 9780387690360
The Alsea Logging and Aquatic Resources Study, commissioned by the Oregon Legislature in 1959, marked the beginning of four decades of research in the Pacific Northwest devoted to understanding the impacts of forest practices on water quality, water quantity, aquatic habitat, and aquatic organism popu- tions. While earlier watershed research examined changes in runoff and erosion from various land uses, this study was the first watershed experiment to focus so heavily on aquatic habitat and organism response to forest practices. The Alsea Watershed Study, as it came to be known, extended over 15 years with seven years of pretreatment calibration measurements, a year of treatment, and seven years of post-treatment monitoring. The research was a cooperative effort with scientists from Oregon State University, Oregon Department of Fish and Wildlife, the U.S. Geological Survey, and the U.S. Environmental Protection Agency. Cooperating landowners included the Georgia-Pacific Corporation, the U.S. Forest Service, and a local rancher. It was a remarkable 15-year partnership marked by excellent cooperation among the participants and outstanding coordination among the scientists, many of whom participated actively for the entire period.
Author : Fred P. Meyer,Lee A. Barclay
Publisher : Unknown
Page : 138 pages
File Size : 54,5 Mb
Release : 1990
Category : Fish kills
ISBN : UOM:39015095238757
Fish kills are graphic evidence of serious problems in a lake or stream. If the kill is related to the presence of toxic chemicals, there may be human health concerns, in addition to the obvious damage to the ecosystem and the fisheries resources. Depending on the cause of a fish kill, legal and economic ramifications may be involved. If the kill is caused by human or corporate actions, litigation is likely to follow, with possible court-awarded damages and assessed costs for cleanup and restoration. This manual is intended to help fisheries biologists and others to prepare for a fish kill investigation.
Author : Elizabeth Coronado Moran
Publisher : Unknown
Page : 260 pages
File Size : 40,5 Mb
Release : 1979
Category : Stream self-purification
ISBN : CORNELL:31924000618672
Author : United States. Environmental Protection Agency
Publisher : Unknown
Page : 16 pages
File Size : 41,9 Mb
Release : 1972
Category : Biochemical oxygen demand
ISBN : UIUC:30112077637491
Author : Michael J. Kennish
Publisher : Springer
Page : 790 pages
File Size : 46,6 Mb
Release : 2015-08-17
Category : Science
ISBN : 9401788006
The Encyclopedia of Estuaries, part of Springer's Encyclopedia of Earth Sciences Series, provides a single, state-of-the-art, comprehensive reference volume on estuaries for research scientists, educators, students, and others. Consisting of almost 270 subject entries in an easy-to-use format, this volume covers the physical, chemical, and biological characteristics of estuaries. In total more than 225 authors from around the world have contributed to the encyclopedia on such diverse subjects as biotic communities, essential habitats, food webs, fisheries, hydrology, pollution, conservation, and many more. The Encyclopedia of Estuaries will meet the needs of professionals worldwide by supplying detailed information from world-class estuarine and marine scientists as well as experts from other fields of study.
Author : Rudolph A. Rosen
Publisher : Texas A&M University Press
Page : 218 pages
File Size : 42,6 Mb
Release : 2014-12-29
Category : Science
ISBN : 9781623491932
This classroom resource provides clear, concise scientific information in an understandable and enjoyable way about water and aquatic life. Spanning the hydrologic cycle from rain to watersheds, aquifers to springs, rivers to estuaries, ample illustrations promote understanding of important concepts and clarify major ideas. Aquatic science is covered comprehensively, with relevant principles of chemistry, physics, geology, geography, ecology, and biology included throughout the text. Emphasizing water sustainability and conservation, the book tells us what we can do personally to conserve for the future and presents job and volunteer opportunities in the hope that some students will pursue careers in aquatic science. Texas Aquatic Science, originally developed as part of a multi-faceted education project for middle and high school students, can also be used at the college level for non-science majors, in the home-school environment, and by anyone who educates kids about nature and water. To learn more about The Meadows Center for Water and the Environment, sponsors of this book's series, please click here.