نتایج جستجو برای: mechanical activated selfpropagation high

تعداد نتایج: 2432889  

Journal: :Coatings 2021

Mo and Mo-based alloys are important aerospace materials with excellent high temperature mechanical properties. However, their oxidation resistance is very poor at temperature, the formation of volatile MoO3 will lead to catastrophic failure molybdenum alloy components. Extensive research on problem has indicated that halide activated pack cementation (HAPC) technology an ideal method solve pro...

Journal: :Journal of the American Chemical Society 2012
Roberto Verucchi Lucrezia Aversa Marco V Nardi Simone Taioli Silvio a Beccara Dario Alfè Lucia Nasi Francesca Rossi Giancarlo Salviati Salvatore Iannotta

Silicon carbide (SiC) has unique chemical, physical, and mechanical properties. A factor strongly limiting SiC-based technologies is the high-temperature synthesis. In this work, we provide unprecedented experimental and theoretical evidence of 3C-SiC epitaxy on silicon at room temperature by using a buckminsterfullerene (C(60)) supersonic beam. Chemical processes, such as C(60) rupture, are ac...

2009
Ian Woertz Laura Fulton Tryg Lundquist

High rate algae ponds fed clarified domestic wastewater and CO2-rich flue gas are expected to remove nutrients to concentrations similar to those achieved in mechanical treatment technologies, such as activated sludge. However, the energy intensity of wastewater treatment with CO2-supplemented high rate ponds (HRPs) would be less than that of mechanical treatments. In conjunction with anaerobic...

Ebrahim Karamian Hassan Gheisari,

Silica refractory bricks are used especially in the metallurgical industries, due to desirable properties such as particularly their high melting point and their rigidity and strength at high temperatures. In this research, different amount of SiC were added to Silica refractory containing different binders such as Borax, Boric acid, Calcium nitride, Sodium tri poly phosphate, Sodium hexametaph...

2007
P. Krejci J. Sainte-Marie M. Sorine J. M. Urquiza

We present a mathematical model describing the electro-mechanical coupling and the mechanical activity of the myofibres of the cardiac muscle and we perform the simulations for the partial differential equations describing the dynamical displacement of a onedimensional body with the resulting constitutive law. Prescribed boundary conditions describing the cardiac valves mechanisms and the arter...

A new activated carbon was produced from pulp and paper mill sludge as a low cost precursor via chemical activation by zinc chloride. The activated carbon was successfully used for the adsorption of phenol and two of its derivatives, i.e. 2-chlorophenol and 4-nitrophenol from aqueous solutions. The characterization of the prepared activated carbon demonstrated high textural properties for the s...

2016
BING-SHU LI WEN-JUN GUO LI HONG YAO-DAN LIU CHENG LIU SHA-SHA HONG DE-BIN WU JIE MIN

Mechanical loading on pelvic supports contributes to pelvic organ prolapse (POP). However, the underlying mechanisms remain to be elucidated. Our previous study identified that mechanical strain induced oxidative stress (OS) and promoted apoptosis and senescence in pelvic support fibroblasts. The aim of the present study is to investigate the molecular signaling pathway linking mechanical force...

2013
Dechao Kong Tiansheng Zheng Ming Zhang Daode Wang Shihao Du Xiang Li Jiahu Fang Xiaojian Cao

Mechanical stress has detrimental effects on cartilaginous endplate chondrocytes due to apoptosis in vivo and in vitro. In this study, we investigated the possible apoptosis signaling pathways induced by mechanical stress in cultured rat cervical endplate chondrocytes. Static mechanical load significantly reduced cell viability in a time- and load-dependent manner, as demonstrated by the Cell C...

Journal: :Journal of The Korean Society of Agricultural Engineers 2009

2018
Zhiwen Zhang Feng Wen Chengjian He Jun Yu

BACKGROUND Nucleus pulposus (NP) cell apoptosis is a typical feature within the degenerative disc. High magnitude compression significantly promotes NP cell apoptosis. Several studies have indicated that resveratrol has protective effects on disc cell's normal biology. OBJECTIVE The present study aims to investigate whether resveratrol can attenuate mechanical overloading-induced NP cell apop...

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