Results 261 to 270 of about 3,661,712 (303)
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PHYSICS OF THE STRENGTH OF CRYSTALLINE MATERIALS
Soviet Physics Uspekhi, 1960Present-day technology makes greater and greater demands on the strength properties of materials. A physical theory of strength has not yet been developed, although the last 30 or 40 years have seen the development of a new branch of molecular physics which is concerned with the study of the deformation and fracture of solid materials.
R.I. Garber, I.A. Gindin
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The Physical Nature of Materials Strengths
Advanced Engineering Materials, 2007The strength of a material is assessed most often by means of a tensile test. For a given material with an original cross-section area A 0 , if the applied maximum tensile force is equal to F max , the fracture strength can be calculated by σ F =F max /A 0 , as described in the textbooks.
Z.‐F. Zhang, J. Eckert
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Trefilov and strength physics today
Powder Metallurgy and Metal Ceramics, 2010The paper discusses the main topics of the plenary report given at the 49th International Conference “Relevant Problems of Strength” (Kiev, June 14–17, 2010) dedicated to the 80th anniversary of Academician Trefilov’s birth. Special attention is paid to strengthening in transition from micro- to nanosizes.
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Physical Strength and Performance of Moderate Duration Physical Tasks
2002Abstract : Previous research has demonstrated a strong relationship (r= .953) between strength and performance on physically demanding U.S. Navy tasks. The earlier work covered tasks lasting
null Jr, Ross R. Vickers
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Respiratory Muscle Strength in the Physically Active Elderly
Lung, 2007Advancing age is associated with a decline in the strength of the skeletal muscles, including those of respiration. Respiratory muscles can be strengthened with nonrespiratory activities. We therefore hypothesized that regular exercise in the elderly would attenuate this age-related decline in respiratory muscle strength.
Eleanor M, Summerhill +3 more
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Effect of Physical Activity Levels on Bone Strength
Annals of the New York Academy of Sciences, 2004Abstract: The present study employs statistical analysis using age as the covariate and seeks to provide cross‐sectional data concerning the relationship between bone strength and levels of physical activities among Japanese.
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ESTIAAATED VERSUS ACTUAL PHYSICAL STRENGTH IN THREE ETHNIC GROUPS
Child Development, 1968This study investigates the relation between self-estimates of strength and actual strength measurements with a hand dynamometer across four grades, three ethnic groups, and both sexes. The results show significant differences in strength estimates for different grades and sexes.
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American Cancer Society nutrition and physical activity guideline for cancer survivors
Ca-A Cancer Journal for Clinicians, 2022Cheryl L Rock +2 more
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