Results 1 to 10 of about 627,761 (301)

Acute relaxation during pregnancy leads to a reduction in maternal electrodermal activity and self-reported stress levels

BMC Pregnancy and Childbirth, 2021
Background Prenatal maternal stress can have adverse effects on birth outcomes and fetal development. Relaxation techniques have been examined as potential countermeasures.
Ilena Bauer, Julia Hartkopf, Anna-Karin Wikström, Nora K. Schaal, Hubert Preissl, Birgit Derntl, Franziska Schleger   +6 more
doaj   +1 more source

Can verbal suggestions strengthen the effects of a relaxation intervention? [PDF]

, 2019
Short stress management interventions such as relaxation therapy have demonstrated preliminary effectiveness in reducing stress-related problems. A promising tool to strengthen the effectiveness of relaxation-based interventions is the use of verbal ...
Evers, Andrea W. M., Manai, Meriem, Meeuwis, Stefanie H., Schakel, Lemmy, Van Dessel, Pieter, van Middendorp, Henriet, Veldhuijzen, Dieuwke S.   +6 more
core   +2 more sources

Stress Relaxation Behavior and Its Prediction of CrMoWV Steel

Cailiao gongcheng, 2017
The stress relaxation data up to 8760h at 550℃ and 600℃of 12Cr-1Mo-1W-0.25V heat-resistant steel were used as the object to study the method of how to accurately and effectively predict long-term relaxation stress by using short-time relaxation data ...
CAO Tie-shan, CHENG Cong-qian, ZHU Yue-mei, ZHANG Hong-wei, LIU Song-feng, ZHAO Jie   +5 more
doaj   +1 more source

Calculation of Relaxation Spectra from Stress Relaxation Measurements [PDF]

, 2010
Application of stress on materials increases the energy of the system. After removal of stress, macromolecules comprising the material shift towards equilibrium to minimize the total energy of the system.
Kontogiorgos, Vassilis
core   +2 more sources

Stress relaxation analysis of single chondrocytes using porohyperelastic model based on AFM experiments

Theoretical and Applied Mechanics Letters, 2014
Based on atomic force microscopytechnique, we found that the chondrocytes exhibits stress relaxation behavior. We explored the mechanism of this stress relaxation behavior and concluded that the intracellular fluid exuding out from the cells during ...
Trung Dung Nguyen, Adekunle Oloyede, Yuantong Gu   +2 more
doaj   +1 more source

热采井口装置螺栓的蠕变及应力松弛规律研究

Jixie qiangdu, 2021
The stress relaxation phenomenon of bolt used in thermal recovery wellhead is studied experimentally under field conditions.The normal and high temperature tensile test,creep test and stress relaxation test are carried out respectively.The comparison of ...
王亭沂, 曹旭祥, 李风, 孙爽
doaj  

Loss of strength in Ni3Al at elevated temperatures [PDF]

, 2006
Stress decrease above the stress peak temperature (750 K) is studied in h123i single crystals of Ni3(Al, 3 at.% Hf ). Two thermally activated deformation mechanisms are evidenced on the basis of stress relaxation and strain rate change experiments.
Ahmadieh A, B. Viguier, Baluc N, Baluc N, Baluc N, Brown N, Caillard D, Caillard D, Hemker KJ, Heredia F, Heredia FE, J. L. Martin, Kruml T, Kruml T, Kruml T, Levine ED, Martin JL, Martin JL, Martin JL, Miura S, Molénat G, Spätig P, T. Kruml, Thornton PH, Veyssière P, Viguier B, Viguier B   +26 more
core   +4 more sources

Effect of stress relaxation on accelerated physical aging of hydrogenated nitrile butadiene rubber using time-temperature-strain superposition principle

Advanced Industrial and Engineering Polymer Research, 2019
While the stress relaxation is a common phenomenon for polymers, its effect on the stress/strain accelerated aging of the hydrogenated nitrile butadiene rubber (HNBR) cannot be ignored.
Qidi Peng, Zhongmeng Zhu, Chengkai Jiang, Han Jiang   +3 more
doaj   +1 more source

Observations of stress relaxation before earthquakes [PDF]

, 2004
Theory and observations suggest that seismic shear wave splitting, caused by fluid-saturated stress-aligned microcracks, directly monitors low-level deformation before fracturing, faulting and earthquakes occur.
Angerer, Booth, Crampin, Crampin, Crampin, Crampin, Crampin, Crampin, Crampin, Crampin, Gao, Gao, Haar, Imoto, Lockner, Main, Peacock, Rikitake, Stuart Crampin, Volti, Volti, Yuan Gao   +21 more
core   +1 more source

Fractional Stress Relaxation Model of Rock Freeze-Thaw Damage

Advances in Materials Science and Engineering, 2021
Freeze-thaw cycle is a type of fatigue loading, and rock stress relaxation under freeze-thaw cycles takes into account the influence of the freeze-thaw cycle damage and deterioration.
Q. Liu, W. Chen, J. K. Guo, R. F. Li, D. Ke, Y. Wu, W. Tian, X. Z. Li   +7 more
doaj   +1 more source