Results 291 to 300 of about 3,042,639 (351)

Research on the mechanism of fault sliding casing damage under the effect of water immersion deterioration of rock mass. [PDF]

Sci Rep
Zhang Y, Shao Y, Mi D, Wang B, Li Y.
europepmc   +1 more source

Design and Performance Study of a Gradient Honeycomb Vibration-Damping Structure for the Knee Joint. [PDF]

Biomimetics (Basel)
Lou S, Feng L.
europepmc   +1 more source

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Liquefied strength ratio with stress densification and low stresses

Canadian Geotechnical Journal, 2021
This paper presents a comparison of four assumptions or approaches for using a liquefied shear strength ratio for sandy soils in cases where there has been a large increase in effective vertical stress, e.g., structure raising or remedial measure, that is outside the effective stresses of the case histories used to develop the empirical liquefied ...
Stark, Timothy D, MacRobert, Charles John   +1 more
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Population stress and the Swedish sex ratio

Paediatric and Perinatal Epidemiology, 2005
SummaryWell‐developed theory implies that the human secondary sex ratio moves inversely over time with the level of anxiety and depression in the population. Few tests of this hypothesis, however, appear in the voluminous literature concerned with the sex ratio. These tests, moreover, employ designs that allow only weak inference.
Ralph, Catalano, Tim, Bruckner, Terry, Hartig, Michael, Ong   +3 more
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Influence of stress ratio and material properties on effective stress range ratio and crack growth

Engineering Fracture Mechanics, 1989
Abstract The influence of stress ratio R and yield strength σ y on crack closure and fatigue crack growth were studied. Crack closure and crack growth experiments were performed on 6063-T6 and 6061-T6 Al-alloys of 0%, 2%, 3% and 6% prestrains. Crack closure stresses were measured using a side edge measurement technique with a clip on
Raghuvir Kumar, S.B.L. Garg
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Pressure transmission ratio reproducibility in stress continent and stress incontinent women

Neurourology and Urodynamics, 1997
Our objective was to determine the effect of cough strength on pressure transmission ratios and establish quantitative and qualitative intra-observer test-retest reproducibility of pressure transmission ratios calculated from dynamic urethral pressure profilometry.
G W, Cundiff, R L, Harris, J P, Theofrastous, R C, Bump   +3 more
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Probabilistic Horizontal Stress Ratios in Rock

Mathematical Geology, 2002
Prior to excavation, any point in a rock mass is subjected to stress, which has to be considered in the overall stress distribution after the excavation work is completed. Over the past three decades, empirical, analytical, and field studies have shown that the ratio of average horizontal stress to vertical stress plays a dominant role in engineering ...
Zekai Şen, Bahaaeldin H. Sadagah
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SBP ratio in exercise stress testing

Journal of Cardiovascular Medicine, 2013
The 3-min SBP ratio (SBPR) was proposed to detect significant coronary artery disease (CAD), but its relationship with abnormalities detected by myocardial perfusion-gated single-photon emission computed tomography (SPECT) was never examined.In 156 consecutive patients submitted to resting and exercise gated SPECT for suspect CAD, perfusion scores ...
Bartolini M, Massi L, Settimo L, Mema A, PUPI, ALBERTO, SCIAGRA', ROBERTO   +5 more
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