Results 71 to 80 of about 366,784 (310)

Indentation theory on orthotropic materials subjected to a frictional moving punch

Archives of Mechanics, 2014
The present article establishes a general theory of frictional moving contact of orthotropic materials indented by a moving rigid punch with various punch profiles.
Y.T. Zhou, K.Y. Lee, Y.H. Jang
doaj   +1 more source

The Crack Propagation Trend Analysis in Ceramic Rolling Element Bearing considering Initial Crack Angle and Contact Load Effect

Shock and Vibration, 2021
Silicon nitride ceramic bearings are widely used for their excellent performance. However, due to their special manufacturing method, cracks will occur on ceramic ball surface, and this initial surface crack will propagate under the action of cyclic ...
Zhe Yuan, Bohan Wang, Chao Liu, Zhan Wang, Xiaochen Zhang, Yu Zhang   +5 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Three-dimensional numerical simulation of factors affecting surface cracking in double-layer rock mass

Frontiers in Earth Science
Stratified rock masses comprise various rocks with different thicknesses, lithologies, and compositions. They exhibit unique cracking morphology and failure modes when subjected to external loads.
Yingjie Xia, Yingjie Xia, Xuan Xue, Xuan Xue, Qi Zhang, Qi Zhang, Jian Chen, Hai Yang   +7 more
doaj   +1 more source

Fatigue crack surface area and crack front length: new ways to look at fatigue crack growth

MATEC Web of Conferences, 2018
This paper discusses the appropriateness of crack length as a reference dimension for fatigue damage. Current discussion on short crack versus long crack data is still divided between various approaches to model small crack growth.
van Kuijk Jesse, Alderliesten René, Benedictus Rinze   +2 more
doaj   +1 more source

Energy radiation of moving cracks

, 2001
The energy radiated by moving cracks in a discrete background is analyzed. The energy flow through a given surface is expressed in terms of a generalized Poynting vector. The velocity of the crack is determined by the radiation by the crack tip.
A. Karma, A. Yuse, D.A. Kessler, D.A. Kessler, D.A. Kessler, D.A. Kessler, E. Louis, E. Louis, E. Sharon, E. Sharon, E. Sharon, E.H. Yoffe, F. Guinea, F.F. Abraham, H. Larralde, I.S. Aranson, J. Fineberg, J. Fineberg, J.A. Hauch, J.F. Boudet, J.F. Boudet, J.F. Boudet, J.F. Boudet, J.M. Morrissey, J.M. Morrissey, J.R. Willis, K.N.G. Fuller, L.B. Freund, L.B. Freund, L.I. Slepyan, L.I. Slepyan, L.M. Sander, M. Adda-Bedia, M. Adda-Bedia, M. Marder, O. Pla, O. Pla, O. Pla, O. Pla, P. González, P. Meakin, R.K. Kalia, S. Fratini, S. Ramanathan, S.J. Zhou, Sh.A. Kulamekhtova, T. Martín   +46 more
core   +1 more source

Plecstatin inhibits hepatocellular carcinoma tumorigenesis and invasion through cytolinker plectin

Molecular Oncology, EarlyView.
The ruthenium‐based metallodrug plecstatin exerts its anticancer effect in hepatocellular carcinoma (HCC) primarily through selective targeting of plectin. By disrupting plectin‐mediated cytoskeletal organization, plecstatin inhibits anchorage‐dependent growth, cell polarization, and tumor cell dissemination.
Zuzana Outla, Jan Kosla, Magdalena Prechova, Lukas Frick, Patricia Bortel, Yasmin Borutzki, Andrea Bileck, Christopher Gerner, Samuel M. Meier‐Menches, Selma Osmanagic‐Myers, Martin Gregor   +10 more
wiley   +1 more source

Characteristics and mechanism of overlying rock and surface damage in gently inclined thick coal seam mining

Meitan xuebao
In order to scientifically guide the disaster prevention and ecological environment protection of the gently coal seam mining in the west of Ordos Basin, and to realize the green and safe mining of coal.
Xiaoshen XIE, Enke HOU, Bingchao ZHAO, Dong FENG, Pengfei HOU, Weiqiang GUO   +5 more
doaj   +1 more source

Surface Crack Identification on a Cylinder Using the Signal Enhancement of the Scanning Laser Line Source Method

Applied Sciences, 2018
Cylindrical structures play an important role in industrial fields. The surface crack is a typical defect in the cylindrical structures. Non-destructive surface crack detection of these structures is critical to the safe operation of the equipment.
Xuekun Liu, Shixi Yang, Yongqiang Liu, Yongwei Chi, Xiwen Gu   +4 more
doaj   +1 more source

Crack growth measured on flat and curved surfaces at cryogenic temperatures [PDF]

, 1967
Multiple element continuity gage measures plane stress crack growth plus surface crack growth under plane strain conditions.
Orange, T. W., Sullivan, T. L.
core   +1 more source