نتایج جستجو برای: contact layer

تعداد نتایج: 436878  

Journal: :nanochemistry research 0
mohammad kassaee department of chemistry, collage of sciences, tarbiat modares university, tehran, iran shabnam hosseini department of chemistry, collage of sciences, tarbiat modares university, tehran, iran s.hossein elahi department of mechanical engineering, arak university of technology, arak, iran behnam bolhari department of endodontics, school of dentistry, tehran university of medical science, tehran, iran

our primary objective was to measure root canal penetrations of aqueous antibacterial nano-chitosan (nano-cs), for the first time. the second objective was to compare and contrast such penetrations to those of chitosan (cs) itself, as well as sodium hypochlorite (naocl), chlorhexidine (chx) and ethylenediamintetraacetic acid (edta), at the routinely used concentrations. molar roots were split l...

2000
Nien-Po Chen H. J. Ueng D. B. Janes J. M. Woodall M. R. Melloch

We present a quantitative conduction model for nonalloyed ohmic contacts to n-type GaAs ~n:GaAs! which employ a surface layer of low-temperature-grown GaAs ~LTG:GaAs!. The energy band edge profile for the contact structure is calculated by solving Poisson’s equation and invoking Fermi statistics using deep donor band and acceptor state parameters for the LTG:GaAs which are consistent with measu...

Journal: :Molecular cell 2010
Andrés Finzi Shi-Hua Xiang Beatriz Pacheco Liping Wang Jessica Haight Aemro Kassa Brenda Danek Marie Pancera Peter D Kwong Joseph Sodroski

The entry of human immunodeficiency virus (HIV-1) into cells is initiated by binding of the gp120 exterior envelope glycoprotein to the receptor, CD4. How does CD4 binding trigger conformational changes in gp120 that allow the gp41 transmembrane envelope glycoprotein to mediate viral-cell membrane fusion? The transition from the unliganded to the CD4-bound state is regulated by two potentially ...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 1994

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