World Atlas of Seagrasses
World Atlas of Seagrasses

Author: Frederick T. Short

Publisher: Univ of California Press

Published: 2003

Total Pages: 336

ISBN-13: 9780520240476

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Seagrasses are a vital and widespread but often overlooked coastal marine habitat. This volume provides a global survey of their distribution and conservation status.

The Spanish Acequias of San Antonio
The Spanish Acequias of San Antonio

Author: I. Waynne Cox

Publisher: Maverick Books

Published: 2005

Total Pages: 0

ISBN-13: 9781893271340

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This well researched and documented book recounts the unique history of water and water distribution in early San Antonio, Texas. The founding of San Antonio in 1718 was due to the presence of two major sources of water --San Pedro Springs and the headwaters of the San Antonio River. From these Spanish engineers designed seven major acequia systems that followed sometimes barely perceptible land contours downward. The history and remarkable expertise of those early engineers is recounted here. Photographs and maps of early San Antonio and urban San Antonio add to the story. The manuscript was completed shortly before the renown local San Antonio archaeologist died at the age of 70 years.

Medical and Veterinary Entomology
Medical and Veterinary Entomology

Author: Gary R. Mullen

Publisher: Academic Press

Published: 2009-04-22

Total Pages: 646

ISBN-13: 0080919693

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Medical and Veterinary Entomology, Second Edition, has been fully updated and revised to provide the latest information on developments in entomology relating to public health and veterinary importance. Each chapter is structured with the student in mind, organized by the major headings of Taxonomy, Morphology, Life History, Behavior and Ecology, Public Health and Veterinary Importance, and Prevention and Control. This second edition includes separate chapters devoted to each of the taxonomic groups of insects and arachnids of medical or veterinary concern, including spiders, scorpions, mites, and ticks. Internationally recognized editors Mullen and Durden include extensive coverage of both medical and veterinary entomological importance. This book is designed for teaching and research faculty in medical and veterinary schools that provide a course in vector borne diseases and medical entomology; parasitologists, entomologists, and government scientists responsible for oversight and monitoring of insect vector borne diseases; and medical and veterinary school libraries and libraries at institutions with strong programs in entomology. Follows in the tradition of Herm's Medical and Veterinary Entomology The latest information on developments in entomology relating to public health and veterinary importance Two separate indexes for enhanced searchability: Taxonomic and Subject New to this edition: Three new chapters Morphological Adaptations of Parasitic Arthropods Forensic Entomology Molecular Tools in Medical and Veterinary Entomology 1700 word glossary Appendix of Arthropod-Related Viruses of Medical-Veterinary Importance Numerous new full-color images, illustrations and maps throughout

Processing of Heavy Crude Oils
Processing of Heavy Crude Oils

Author: Ramasamy Marappa Gounder

Publisher: Intechopen

Published: 2019

Total Pages: 274

ISBN-13: 1839684097

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Unconventional heavy crude oils are replacing the conventional light crude oils slowly but steadily as a major energy source. Heavy crude oils are cheaper and present an opportunity to the refiners to process them with higher profit margins. However, the unfavourable characteristics of heavy crude oils such as high viscosity, low API gravity, low H/C ratio, chemical complexity with high asphaltenes content, high acidity, high sulfur and increased level of metal and heteroatom impurities impede extraction, pumping, transportation and processing. Very poor mobility of the heavy oils, due to very high viscosities, significantly affects production and transportation. Techniques for viscosity reduction, drag reduction and in-situ upgrading of the crude oil to improve the flow characteristics in pipelines are presented in this book. The heavier and complex molecules of asphaltenes with low H/C ratios present many technological challenges during the refining of the crude oil, such as heavy coking on catalysts. Hydrogen addition and carbon removal are the two approaches used to improve the recovery of value-added products such as gasoline and diesel. In addition, the heavy crude oil needs pre-treatment to remove the high levels of impurities before the crude oil can be refined. This book introduces the major challenges and some of the methods to overcome them.

Game Management
Game Management

Author: Aldo Leopold

Publisher: Univ of Wisconsin Press

Published: 1987-03-13

Total Pages: 519

ISBN-13: 0299107736

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With this book, published more than a half-century ago, Aldo Leopold created the discipline of wildlife management. Although A Sand Country Almanac is doubtless Leopold’s most popular book, Game Management may well be his most important. In this book he revolutionized the field of conservation.

Encyclopedia of Caves and Karst Science
Encyclopedia of Caves and Karst Science

Author: John Gunn

Publisher: Routledge

Published: 2004-08-02

Total Pages: 1971

ISBN-13: 1135455082

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The Encyclopedia of Caves and Karst Science contains 350 alphabetically arranged entries. The topics include cave and karst geoscience, cave archaeology and human use of caves, art in caves, hydrology and groundwater, cave and karst history, and conservation and management. The Encyclopedia is extensively illustrated with photographs, maps, diagrams, and tables, and has thematic content lists and a comprehensive index to facilitate searching and browsing.