Results 251 to 260 of about 231,424 (276)

Mechanical energy conversion to electricity through periodically stress-induced martensitic transformation in Co-Ni-Ga

Scripta Materialia, 2023
We anticipate and demonstrate experimentally the mechanical-to-electrical energy conversion through the variation of magnetization resulting from a periodical stress-induced martensitic transformation in the single crystalline Co-Ni-Ga ferromagnetic shape memory alloy.
Paul Lindquist, Volodymyr Chernenko, Eduard Cesari, Peter Müllner   +3 more
openaire   +2 more sources

Excitation of dynamic chaos in a monolithic ring chip laser upon periodic modulation of mechanical stresses in the active element

Quantum Electronics, 2004
The peculiarities of nonlinear dynamics of solid-state bidirectional ring Nd:YAG chip lasers are studied theoretically and experimentally during periodic modulation of mechanical stresses in the active element. It is shown that modulation of mechanical stresses is an effective method for exciting dynamic chaos in a monolithic chip laser.
Nikolai V Kravtsov, S S Sidorov, П. П. Пашинин, V V Firsov, S N Chekina   +4 more
openalex   +3 more sources

Mechanisms of periodic deformation of the film-substrate system under compressive stress

Physical Mesomechanics, 2010
The paper considers elastic and plastic deformation of metal, oxide and semiconductor films during their growth, thermal annealing and mechanical loading. It is shown that in a compressed thin film-compliant substrate system, wrinkling of the film surface and coherent deformation of the substrate take place.
A.V. Panin, Artur Shugurov
openaire   +2 more sources

Synergetic effect of topological cue and periodic mechanical tension-stress on osteogenic differentiation of rat bone mesenchymal stem cells

Colloids and Surfaces B: Biointerfaces, 2017
Mesenchymal stem cells (MSCs) are able to self-renew and differentiate into tissues of mesenchymal origin, making them to be significant for cell-based therapies, such as metabolic bone diseases and bone repair. Regulating the differentiation of MSCs is significant for bone regeneration.
Yao Liu, Guang Yang, Huanzhong Ji, Tao Xiang, En Luo, Shaobing Zhou   +5 more
openalex   +4 more sources

Effect of mechanical stresses on hydrogen distribution in VA subgroup of the periodical table of elements

International Journal of Hydrogen Energy, 2001
It is shown that mechanical stresses caused by gradients of solute atom concentration and temperature gradients may have a substantial effect on the heat of transport by thermodiffusion. A general equation for hydrogen distribution due to thermodiffusion in terms of these factors is derived.
N.G. Primakov, V.A. Rudenko, V.V. Kazarnikov   +2 more
openaire   +2 more sources

Bone metabolism against mechanical stress shows differing responses in growth periods and adulthood

Physiotherapy, 2015
1.8± 1.3 cm at P2. In the condition UCon, the COG of all subjects displaced to dominant side at both postures. The hip joint angular velocity of Con was significantly higher than that of UCon in both postures (p< 0.01). Moreover, the jerk cost on an anteroposterior direction and the right and left direction was significantly larger Con than UCon in ...
C. Fujita, Sangun Lee, T. Suzuki, H. Izawa, A. Satoh   +4 more
openaire   +2 more sources

Induction Period of Oxidation and Mechanism of Fracture of Polyolefins under Mechanical Stress

International Journal of Polymeric Materials, 1993
Abstract Induction period of oxidation of solid polyolefins and mechanisms of fracture under mechanical stress are reviewed. It is proposed that the existence of a true induction period at the uninhibited oxidation of solid polyolefins should be attributed to uneven spatial distribution of oxidation sites and slow migration of radicals through the ...
openaire   +2 more sources

Temperature Sensitivity Control and Mechanical Stress Effect of Boron-Doped Long-Period Fiber Gratings

Fiber and Integrated Optics, 2001
We will present in this work the quantitative analysis of the relationship between the doping concentrations of GeO 2 and B 2 O 3 in the core and cladding regions and the temperature sensitivity of the resonance wavelength shift in long-period fiber gratings (LPFGs).
Youngjoo Chung, Won-Taek Han, Byeong Ha Lee, Young-Geun Han, Chang-Seok Kim, Un-Chul Paek   +5 more
openaire   +2 more sources

Modelling and analyses of the mechanical response of P92 steel in stress-controlled cyclic tensile-loading tests with holding periods

Materials at High Temperatures, 2020
The current study investigates the mechanical behaviors of P92 steel in the stress-controlled cyclic tensile-loading tests with holding period.
Qingyang Huang, Xiaodan Cai, Dongmei Ji, Jiong Wang   +3 more
openaire   +2 more sources

Periodic mechanical stress activates EGFR-dependent Rac1 mitogenic signals in rat nucleus pulpous cells via ERK1/2

Biochemical and Biophysical Research Communications, 2015
The mitogenic effects of periodic mechanical stress on nucleus pulpous cells have been studied extensively but the mechanisms whereby nucleus pulpous cells sense and respond to mechanical stimulation remain a matter of debate. We explored this question by performing cell culture experiments in our self-developed periodic stress field and perfusion ...
Gongming Gao, Nan Shen, Xuefeng Jiang, Huiqing Sun, Nanwei Xu, Dong Zhou, Luming Nong, Kewei Ren   +7 more
openalex   +4 more sources