Results 11 to 20 of about 135,433 (268)

Intermittent cyclic loading of cartilage explants modulates fibronectin metabolism

Osteoarthritis and Cartilage, 1997
The aim of this study was to evaluate systematically the effect of tissue load, its amplitude, time of intermittence and duration of loading on the biosynthesis and release of fibronectin by intermittently loaded mature bovine articular cartilage explants.Cyclic compressive pressure was introduced using a sinusoidal waveform of 0.5 Hz-frequency with a ...
Steinmeyer, Jürgen, Ackermann, Beate, Raiss, Ruth X.   +2 more
openaire   +3 more sources

The Effect of Implant Size on Fretting Currents of Acetabular Cup-Liner Tapers During in Vitro Cyclic Loading. [PDF]

J Orthop Res
As dual mobility hips become more popular, there is a clinical need to investigate design features that will impact tribocorrosion of these devices. While previous studies have investigated both corrosion and wear damage, the effect of device size on ...
Kurtz PW, Mace A, Goodwin CM, Gilbert JL.   +3 more
europepmc   +2 more sources

Effect of post-peak cyclic load on mechanics and seepage characteristics of sandstone under different confining pressures

Meitan kexue jishu, 2023
The mining disturbance causes the rock mass in a certain range of the coal seam floor to be in a post-peak state. Due to the excavation of adjacent roadways and the mining of coal seams, the post-peak rock mass undergoes a cyclic loading-unloading ...
Peisen ZHANG, Daqiang XU, Wei YAN, Xin HU, Xiao LI, Jiaxin FANG, Zhaoqiang JU, Ming ZHAO   +7 more
doaj   +1 more source

Plastic intermittency during cyclic loading: From dislocation patterning to microcrack initiation [PDF]

Physical Review Materials, 2019
In metallic materials subjected to cyclic loading, strain hardening as well as fatigue crack initiation have been linked for a long time with the evolution of dislocation patterns and structures. In particular, the development of low-energy dislocation configurations such as persistent slip bands (PSBs) is considered as a precursor to crack initiation.
Weiss, J., Rhouma, W, Deschanel, S., Truskinovsky, L.   +3 more
openaire   +2 more sources

Novel Gas Turbine Challenges to Support the Clean Energy Transition

Energies, 2022
The ongoing energy transformation, which is fueled by environmentally cautious policies, demands a full synergy with existing back-up gas turbines (GTs).
Hiyam Farhat, Coriolano Salvini
doaj   +1 more source

Low cycle fatigue life improvement of AISI 304 by initial and intermittent wire brush hammering [PDF]

, 2013
The effects of hammering by wire brush as a method of improving low cycle fatigue life of highly ductile austenitic stainless steel AISI 304 have been investigated through an experimental study combining imposed strain fatigue tests and assessment of ...
BRAHAM, Chedly, KHLIFI, Ammar, MAKHLOUF, Kamel, SIDHOM, Habib, SIDHOM, Naziha   +4 more
core   +3 more sources

Experimental study on equilibrium initiation and extension of multiple clusters of fractures based on true triaxial physical simulation

Journal of Natural Gas Geoscience, 2023
In the context of tight sandstone reservoirs in the Ordos Basin characterized by compact and heterogeneous rock formations, conventional fracturing techniques yield monolithic fracture shapes, rendering 3D reservoir reconstruction unattainable.
Xiangwei Kong, Hao Huang, Guangyu Xie, Rentian Yan, Hongxing Xu, Song Li   +5 more
doaj   +1 more source

Development of a Step Counting Algorithm Using the Ambulatory Tibia Load Analysis System for Tibia Fracture Patients [PDF]

, 2018
Introduction: Ambulation can be used to monitor the healing of lower extremity fractures. However, the ambulatory behavior of tibia fracture patients remains unknown due to an inability to continuously quantify ambulation outside of the clinic.
Ackerman, Matt, Hitchcock, Robert, Kubiak, Erik, Lajevardi-Khosh, Arad, Petelenz, Tomasz, Sinclair, Sarina, Stuart, Ami, Tresco, Ben   +7 more
core   +2 more sources

Intermittent cyclic stretch of engineered ligaments drives hierarchical collagen fiber maturation in a dose- and organizational-dependent manner. [PDF]

Acta Biomater
Hierarchical collagen fibers are the primary source of strength in tendons and ligaments, however these fibers do not regenerate after injury or with repair, resulting in limited treatment options. We previously developed a culture system that guides ACL
Troop LD, Puetzer JL.
europepmc   +2 more sources

Experimental study on the effect of confining pressure and interval time on the fatigue mechanical properties of mudstone [PDF]

E3S Web of Conferences
The mudstone interlayer experiences discontinuous cyclic loading during gas storage reservoir operation. To investigate the effects of intermittent action and confining pressure on the fatigue mechanical properties of mudstone.
Zhang Yuhao, Ren Lachun, Yao Peng, Jiang Deyi   +3 more
doaj   +1 more source