INIS Atomindeks

INIS Atomindeks PDF Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1390

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INIS Atomindeks

INIS Atomindeks PDF Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1390

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Book Description


U Uranium

U Uranium PDF Author:
Publisher: Springer Science & Business Media
ISBN: 3662060140
Category : Science
Languages : en
Pages : 371

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Book Description
The present volume A4 of the "Uranium" series of the Gmelin Handbook deals with two very important technological aspects of the nuclear fuel cycle: - the behavior of fuel elements during burnup in a nuclear reactor, and - the reprocessing of spent fuel to recover the non-fissioned uranium and newly created materials. The usefullifetime of a fuel element in a nuclear reactor depends strongly on the change of its chemical and physical properties during irradiation. Properties like thermal conductivity, swelling, creep, and oxygen-to-metal ratio are strongly affected by the intense neutron field and the energetic fission products. Furthermore, the high temperature gradient in a fuel element also produces alterations of the initial fuel. such as densification or U: Pu segregation. All of these effects are thoroughly discussed for the different kinds of fuels to be used in modern nuclear reactors today or in the future. The vast amount of very often Contradietory results in sometimes difficultly obtainable Iiterature has been summarized to create a compendium in this field with the two sections, on oxide and on carbide and nitride fuels, respectively. The chapters on reprocessing of spent fuels deal only with fuel elements of the uranium 235 thorium fuel cycle and with those containing fuel highly enriched in U. The treatment of U0 2 and (U,Pu)0 has already been given in the transuranic element series.

Cities and Their Vital Systems

Cities and Their Vital Systems PDF Author: Advisory Committee on Technology and Society
Publisher: National Academies Press
ISBN: 9780309037860
Category : Social Science
Languages : en
Pages : 1298

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Book Description
Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.

How to Get It

How to Get It PDF Author:
Publisher: DIANE Publishing
ISBN: 1568065213
Category :
Languages : en
Pages : 544

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Book Description
Comprehensive guide to identifying and acquiring government-sponsored documents, maps, patents, specifications, and other resources. Describes each item and gives its source, acronym, series designation or short title, cost, where it is indexed, and telephone numbers to call for more information. It emphasizes research development, testing, and evaluation programs.

Use of Services for Family Planning and Infertility, United States, 1982

Use of Services for Family Planning and Infertility, United States, 1982 PDF Author: Gerry E. Hendershot
Publisher:
ISBN: 9780840602220
Category : Birth control
Languages : en
Pages : 982

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Book Description
The 1982 statistics on the use of family planning and infertility services presented in this report are preliminary results from Cycle III of the National Survey of Family Growth (NSFG), conducted by the National Center for Health Statistics. Data were collected through personal interviews with a multistage area probability sample of 7969 women aged 15-44. A detailed series of questions was asked to obtain relatively complete estimates of the extent and type of family planning services received. Statistics on family planning services are limited to women who were able to conceive 3 years before the interview date. Overall, 79% of currently mrried nonsterile women reported using some type of family planning service during the previous 3 years. There were no statistically significant differences between white (79%), black (75%) or Hispanic (77%) wives, or between the 2 income groups. The 1982 survey questions were more comprehensive than those of earlier cycles of the survey. The annual rate of visits for family planning services in 1982 was 1077 visits /1000 women. Teenagers had the highest annual visit rate (1581/1000) of any age group for all sources of family planning services combined. Visit rates declined sharply with age from 1447 at ages 15-24 to 479 at ages 35-44. Similar declines with age also were found in the visit rates for white and black women separately. Nevertheless, the annual visit rate for black women (1334/1000) was significantly higher than that for white women (1033). The highest overall visit rate was for black women 15-19 years of age (1867/1000). Nearly 2/3 of all family planning visits were to private medical sources. Teenagers of all races had higher family planning service visit rates to clinics than to private medical sources, as did black women age 15-24. White women age 20 and older had higher visit rates to private medical services than to clinics. Never married women had higher visit rates to clinics than currently or formerly married women. Data were also collected in 1982 on use of medical services for infertility by women who had difficulty in conceiving or carrying a pregnancy to term. About 1 million ever married women had 1 or more infertility visits in the 12 months before the interview. During the 3 years before interview, about 1.9 million women had infertility visits. For all ever married women, as well as for white and black women separately, infertility services were more likely to be secured from private medical sources than from clinics. The survey design, reliability of the estimates and the terms used are explained in the technical notes.

Government Reports Announcements & Index

Government Reports Announcements & Index PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1234

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Energy Research Abstracts

Energy Research Abstracts PDF Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1226

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INIS Reference Series

INIS Reference Series PDF Author:
Publisher:
ISBN:
Category : Subject headings
Languages : en
Pages : 150

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Si Silicon

Si Silicon PDF Author:
Publisher: Springer Science & Business Media
ISBN: 3662069946
Category : Science
Languages : en
Pages : 562

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Book Description
This volume concludes the coverage of silicon carbide, SiC, begun in "Silicon" Supplement Volume B 2, 1984, subtitled "Silicon Carbide - Part I". Part I described the physical properties of SiC, SiC diodes, molecular species in the SiC-C gas phase, and amorphous silicon-carbon alloys. The current Part II ("Silicon" Supplement Volume B 3,1986) covers in its initial chapter the Si-C phase diagram and in the final chapters the higher order systems of Si and C with additional elements through boron, arranged according to the Gmelin system. In between some 95% of the volume focusses on SiC, beginning with its natural occurrence, preparation and formation, and purification, continuing with its chemical analysis, manufacture of special ized forms, electrochemistry, and chemical reactions, and concluding with descriptions of its myriad applications. The final applications section covering electronic devices also describes similar applications of the amorphous Si-C alloys. The successive chapters in this volume are often closely interrelated, since it is often necessary to synthesize SiC directly in a form in which it will be applied. SiC cannot be melted and cast, nor rolled nor drawn, nor is it easily electroplated or sintered or purified. Silicon carbide first became known to man when E. G. Acheson in 1891 used an electric current to heat a mixture of clay and carbon to extremely high temperatures.

Annual Report 1989-90

Annual Report 1989-90 PDF Author: New Brunswick. Department of Transportation
Publisher:
ISBN: 9781550483925
Category :
Languages : en
Pages : 1272

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Book Description
General activity review of associated branches and agencies to the Department which includes corporate securities registrations, a list of tenders received, and general financial data. Branches and agencies reviewed are responsible for motor vehicle activity, highway construction, traffic engineering, telecommunications and public utilities.