968 resultados para United States. National Fertilizer Development Center, Muscle Shoals, Alabama.
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Population; produit national; agriculture; industrie; transports; niveau de vie; commerce exterieur
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Population; produit national; agriculture; industrie
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Population; national product; agriculture; energy; industry; transport; external trade; standard of living; trends of major economic indicators in the six; supplementary statistics on iron and steel-trends from 1952-62; supplementary statistics in an social field-employment, earnings, expenditure, social security
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Population; produit national; agriculture; energie; industrie; transports; commerce exterieur; niveau de vie; evolution de donnees economiques importantes pour les six pays
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Population; labour force; national product; agriculture; energy; industry; transport; external trade; social statistics; standar5d of living; trends of major economic indicators in the countries of the community; supplementary statistics on iron and steel-trends from 1956-63
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Population; main-d'oeuvre; produit national; agriculture; energie; industrie; transports; commerce exterieur; statistiques sociales; niveau de vie; evolution des donnees economiques importantes dans les six pays; donnees complementaires sur le siderurgie-evolution de 1959 a 1964
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"B-221422"--P. [1].
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Mode of access: Internet.
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Title on t.p. verso: Illegal immigration to the United States, a growing problem for law enforcement.
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At head of title: 86th Cong., 2d sess. Committee print.
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In the past 10 years, the use of floating breakwaters as temporary coastal structures has become increasingly widespread in the United States as an inexpensive means for suppressing waves. However, as with any new technology, there have been many failures and a substantial number of imaginative, successful innovations. One of the chief problems contributing to the failure rate has been a lack of awareness by designers of reliable, up-to-date technical information. As part of a large research effort to remedy this problem, a survey was conducted on field experience with floating breakwaters in the Eastern United States. Results of the survey confirmed that state-of-the-art technical literature is not being properly disseminated. Structures built according to early design manuals were shown to have failed before the completion of their design life. Conversely, floating breakwaters built to the standards set by recent research have fared well and show promise of meeting their design golas. The weakest areas of the present technology are flotation and the anchoring systems. It is recommended that a concentrated research effort be directed toward these problem areas; it is also recommended that the monitoring of state-of-the-art projects continue. (Author).
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"CS 87-359c."
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Mode of access: Internet.
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Issued May 1978.