نتایج جستجو برای: coupling agents

تعداد نتایج: 510160  

The buried hetero-structure (BH) InGaAsP-InP waveguide is used for asystem of double microring resonators (DMR). The light transmission and location ofresonant peaks are determined for six different sets of ring radii with different ordermode numbers. The effect of changing middle coupling coefficient on the box likeresponse is studied. It is found that the surge of coupling coefficient to the ...

2011
Nikolaos Vlassopoulos Nazim Fatès

This note reviews a bio-inspired scheme for aggregating autonomous agents in the absence of global communication or coordination, a problem that is known as Decentralized Gathering. We present results on the clustering behavior of the agents, as we vary the main parameter that controls the agents’ aggregation. Our observations show that there exist two phenomenologically different behaviors, ch...

Journal: :Cancer research 2002
Mark A Ozog John F Bechberger Christian C G Naus

The loss of gap junctional intercellular communication has been proposedas playing a major role in the process of carcinogenesis. Most neoplastic cells, including C6 gliomas, express less connexins and have fewer gap junctions, reduced gap junctional intercellular communication, and increased growth rates compared with their nonneoplastic counterparts. The purpose of this study was to determine...

2014
Annika Betke

Innovative synthetic approaches should be simple and environmentally friendly. Here, we present the surface modification of inorganic submicrometer particles with long alkyl chain organophosphorus coupling agents without the need of a solvent, which makes the technique environmentally friendly. In addition, it is of great benefit to realize two goals in one step: size reduction and, simultaneou...

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
younes yousefi lecturer, engineering department, omidiyeh branch, islamic azad university, khuzestan, iran. hossein vahdanifar msc student, department of engineering shahid chamran university, khuzestan, ahwaz, iran reza shirani msc student, department of engineering shahid chamran university, khuzestan, ahwaz, iran mohamad dehghani phd student, department of mechanical engineering, yazd university , yazd ,iran

in this paper deflection and free vibration of sandwich panel is studied. the core of sandwich panels is made of hexagonal honeycomb and faces are made of two different materials of carbon fiber reinforced plastic and k-aryl/epoxy covering. the governing equations are deduced from the first order sheer deformation theory (fsdt) and they are solved using generalized differential quadrature metho...

Journal: :iranian chemical communication 2013
ali naghipour mohsen sayadi mojdeh hashemi mosstafa kazemi

the catalytic acvtivity of dimeric and monomeric ortho-palladated complexes [pd{c6h2(ch2nh2-(ome)2,3,4}(µ-cl)]2)2) and [pd{c6h2(ch2nh2-(ome)2,3,4}cl(pph3)](3), was investigated in heck cross-coupling reaction. these complexes are more active and efficient catalysts for heck cross-coupling reaction. the palladium complexes 2 and 3 is employed in the heck cross-coupling reaction between styrene a...

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