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Author : M. H. Hull
Publisher : Unknown
Page : 32 pages
File Size : 51,7 Mb
Release : 1946
Category : Gamma rays
ISBN : UOM:39015095101815
Author : Edoardo Amaldi,U. Fano,L. V. Spencer,M. J. Berger
Publisher : Springer Science & Business Media
Page : 874 pages
File Size : 55,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642459207
661 tures, such as occurs in stellar atmospheres and in thermonuc1ear processes, will not be considered 1. Because photoelectric absorption predominates completely at low photon energies, and penetration theory is elementary under these conditions, attention is directed in this artic1e to photon energies above ""20 kev. On the high energy side, this artic1e does not cover the cascade shower processes which are dealt 2 with in cosmic ray studies • In this connection it is recalled that the cascade shower process, which involves electrons and positrons besides X rays, becomes predominant above 10 Mev in heavy elements, and above 100 Mev in light ones. Theories developed for the study of cascade showers in cosmic rays rely on assumptions about the prob ability of interactions with matter which are adequate only at energies of the order of 1 Gev or more. Below this energy there is a gap in which penetration phenomena are qualitatively known and understood but have not yet been calculated in detail. A few detailed experimental studies which have been made at energies up to 300 Mev will be reviewed in this article.
Author : United States. Army Air Forces,United States. Document Service Center, Dayton, Ohio
Publisher : Unknown
Page : 1152 pages
File Size : 41,9 Mb
Release : 1948
Category : Aeronautics, Military
ISBN : UOM:39015021084044
Author : Lewis Van Clief Spencer,Arthur B. Chilton,Charles Eisenhauer
Publisher : Unknown
Page : 992 pages
File Size : 55,8 Mb
Release : 1980
Category : Civil defense
ISBN : UIUC:30112070729097
Author : John M. Ruddy
Publisher : Unknown
Page : 28 pages
File Size : 44,8 Mb
Release : 1951
Category : Gamma rays
ISBN : UOM:39015086438994
Author : Simon Hakim,Gila Albert,Yoram Shiftan
Publisher : John Wiley & Sons
Page : 408 pages
File Size : 42,6 Mb
Release : 2015-06-01
Category : Political Science
ISBN : 9781119078241
Addresses a variety of challenges and solutions within the transportation security sphere in order to protect our transportation systems • Provides innovative solutions to improved communication and creating joint operations centers to manage response to threats • Details technological measures to protect our transportation infrastructure, and explains their feasibility and economic costs • Discusses changes in travel behavior as a response to terrorism and natural disaster • Explains the role of transportation systems in supporting response operations in large disasters • Written with a worldwide scope
Author : Anonim
Publisher : Unknown
Page : 984 pages
File Size : 48,7 Mb
Release : 1980
Category : Weights and measures
ISBN : UOM:39015029637702
Author : Anonim
Publisher : Unknown
Page : 902 pages
File Size : 52,9 Mb
Release : 1948
Category : Aeronautics, Military
ISBN : MINN:31951000842269F
Author : Anonim
Publisher : Unknown
Page : 730 pages
File Size : 42,8 Mb
Release : 1974
Category : Nuclear energy
ISBN : UOM:39015023546537
Author : Quartermaster Food and Container Institute for the Armed Forces (U.S.)
Publisher : Unknown
Page : 280 pages
File Size : 43,5 Mb
Release : 1954
Category : Food
ISBN : OSU:32435052652799
Author : Zvi Goffer
Publisher : John Wiley & Sons
Page : 654 pages
File Size : 44,9 Mb
Release : 2006-08-04
Category : Science
ISBN : 9780471915157
The chemical study of archaeological materials Archaeological Chemistry, Second Edition is about the application of the chemical sciences to the study of ancient man and his material activities. The text of the book centers on the use of chemical methods, but also refers to the contributions of physics, biology, and genetics to archaeological research. Subjects discussed in the book include the determination of the nature of ancient materials, their provenance and age, the technologies used for the production of man-made materials, and the analysis of ancient human and animal remains (such as bone, dried blood, and coprolites), which yields information on ancient diets, kinship, habitancy, and migratory patterns. New developments in analytical chemistry and in related disciplines, which have contributed to archaeological research since the first edition of the book was published, are dealt with in this edition, which also includes: * Updated information on the study of the nature, age, and provenance of ancient materials * New sections on organic, biological and genetic studies * Glossary * Extensive bibliography The book is intended primarily for archaeologists, physical anthropologists and students of archaeology and physical anthropology, but will also be of use to conservators, curators, and art historians. Natural scientists reading it will become acquainted with advances in archaeological research which were made possible only by the application of chemical, physical, and biological methods and techniques.
Author : Anonim
Publisher : Unknown
Page : 116 pages
File Size : 40,5 Mb
Release : 1951
Category : Electronic
ISBN : CORNELL:31924105646073
Author : Stanford Research Institute, Stanford University,Stanford Research Institute
Publisher : Unknown
Page : 116 pages
File Size : 40,9 Mb
Release : 1951
Category : Fission products
ISBN : UOM:39015086435313
Author : Quartermaster Food and Container Institute for the Armed Forces (U.S.)
Publisher : Unknown
Page : 880 pages
File Size : 53,8 Mb
Release : 1954
Category : Ionizing radiation
ISBN : MINN:319510004522942
Author : United States. Congress. House. Committee on Government Operations. Government Activities and Transportation Subcommittee
Publisher : Unknown
Page : 536 pages
File Size : 50,6 Mb
Release : 1985
Category : Emergency medical personnel
ISBN : UCR:31210012934418