Results 11 to 20 of about 1,058,557 (263)
Sleep-wake dynamics pre- and post-exposure to chronic social stress
iScience, 2021 Summary: An analytical approach combining the statistical distributions of the sleep-wake bouts and the Markov transition matrix is used to explain the under-examined association between the microarchitecture of the sleep-wake cycle and susceptibility to
Basma Radwan +2 more
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Changes in Perceived Stress of Pharmacy Students Pre- and Mid-COVID-19 Pandemic
Pharmacy, 2022 Objective: The objective of this study was to examine (1) the difference in perceived stress in first-year pharmacy students before and during the COVID-19 pandemic and (2) the difference in perceived stress among pharmacy students working different ...
Dylan M. Pham, Jia X. Yang, Kelly C. Lee
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Surface waves on a coated incompressible elastic half-space
Open Physics, 2022 Recently, Khajiyeva et al. (2018) studied the dynamics of surface wave propagation in a pre-stressed incompressible half-space when accompanied by both vertical and tangential loads. In this study, however, we extend the work of Khajiyeva et al.
Althobaiti Saad
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Journal of Materials Research and Technology, 2023 In order to investigate the effect of pre-stress grinding on SCC resistance and its mechanism, a series of experiments and simulations were conducted. In the beginning, the SCC behaviors of 304 stainless steel on machined surface were studied.
Zhuangzhuang Hou +3 more
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Engineering Structures and Technologies, 2013 The current economic pressures on utilities to extend a service life of structural concrete mean that concrete structures may have to perform safety functions for a time period significantly greater than their initial design life. However, the structural
Edgaras Atutis +2 more
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Applied Sciences, 2023 In practical engineering, coal burst is usually caused by the combination of high geo-stress and dynamic loading. To study the dynamic response of coal in geo-stress conditions, numerical models of a coupled static–dynamic split Hopkinson pressure bar ...
Jiachuan Sun +4 more
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Construction Condition and Damage Monitoring of Post-Tensioned PSC Girders Using Embedded Sensors
Sensors, 2017 The potential for monitoring the construction of post-tensioned concrete beams and detecting damage to the beams under loading conditions was investigated through an experimental program.
Kyung-Joon Shin +5 more
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Effect of pre-bending deformation on mechanical properties of complex phase steel CP800
Cailiao gongcheng, 2021 The pre-bending specimens were obtained by stamping with complex phase steel CP800, and the effect of pre-bending deformation on microstructure, residual stress and mechanical properties of the steel were studied by using EBSD, X-ray residual stress ...
SUN Hao-fei +4 more
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STUDY OF SHORT-TERM FLEXURAL BEHAVIOR FOR GLUE-BAMBOO AND LUMBER BEAMS UNDER DIFFERENT PRE-STRESSED STATES [PDF]
Civil Engineering Journal, 2017 After a new kind of steel-lumber composite member, named as pre-stress glue-bamboo and lumber beam, was proposed by project team, the bending test was conducted on 12 groups of pre-stress glue-bamboo and lumber beams and 4 groups of ordinary glue-bamboo ...
Guo Nan, Wang Yan-Ju, Zuo Hong-Liang
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Stress materno e hospitalização infantil pré-cirúrgica [PDF]
Estudos de Psicologia (Campinas), 2012 O objetivo deste estudo foi a valiar o nível de stress de mães acompanhantes de crianças hospitalizadas para realização de procedimentos cirúrgicos eletivos, relacionando-o com variáveis demográficas da criança e experiência prévia no contexto ...
Luciana Esgalha Carnier +2 more
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