نتایج جستجو برای: al ag
تعداد نتایج: 483484 فیلتر نتایج به سال:
Ideal strength, which can be defined as the stress necessary to induce permanent deformation in a material without prior imperfections, is one of the important materials characterizations. In this study we calculate the ideal pure shear and simple shear strengths of fcc (Al, Cu, Ni, Ag) and bcc (Fe, Mo, W) metals in their common slip systems using density functional theory. We find the critical...
Previous studies (Neff et al., 1982, J. Cell. Biol. 95:654-666; Decker et al., 1984. J. Cell. Biol. 99:1388-1404) have described a monoclonal antibody (CSAT Mab) directed against a complex of three integral membrane glycoproteins of 120,000-160,000 mol wt (CSAT antigen [ag]) involved in the cell matrix adhesion of myoblasts and fibroblasts. In localization studies on fibroblasts presented here,...
Introduction One of the best methods in the diagnosis and control of breast cancer is mammography. The importance of mammography is directly related to its value in the detection of breast cancer in the early stages, which leads to a more effective treatment. The purpose of this article was to calculate the X-ray spectrum in a mammography system with Monte Carlo codes, including MCNPX and MCNP5...
Magical oxygen: Tuning Cu&Ag nanoporous membrane into nanoporous (Cu&Ag)@Ag core-shell alloy
Metallic glasses are perfect materials for preparing nanostructures by dealloying, but the obtained commonly of porous structures. Through combination chemical dealloying and ultrasonic vibration, ultrathin Cu&Ag bimetallic nanoporous membranes (NPMs) have been prepared from a Zr48Cu36Ag8Al8 MG ribbon. Furthermore, introducing oxygen into ribbon to change mechanism process, (Cu&Ag)@Ag core-shel...
In recent years the number of fMRI studies aiming to pinpoint the neural substrates of number processing increased steadily (e.g., Dehaene et al., 2003; see Dehaene, 2009; Nieder and Dehaene, 2009 for reviews; see Arsalidou and Taylor, 2010 for a meta-analysis). Nevertheless, while considerable progress has been made, the neural correlates and cognitive mechanisms involved in the retrieval of a...
Abstract The in situ X-ray photoelectron spectroscopy data indicate that butyltrimethylammonium bis(trifluoromethylsulfonyl)imide (N4111(TFSI)) adsorbs strongly within the potential range −3.25 V < E −2.25 and specifically at (vs. Ag-QRE) Al electrode. Strong adsorption of intermediates N4111(TFSI) electrochemical decomposition was observed impedance cyclic voltammetry measurements. At −4.25...
In a recent paper [1], Chambon et al. have reported on the early growth stages of Ag on the Ni(1 1 1) surface by means of scanning tunneling microscopy (STM). The authors have concluded that Ag on Ni(1 1 1) (at 300–625 K) forms mostly bilayer islands, even for a low coverage of 0.1 monolayer (ML). The interpretation of Chambon et al. is based on the assumption that the first atomic layer of Ag ...
Highly-sensitive, reliable and reproducible Raman-active substrates via a facile and organic-free method are reported. These intriguing hierarchical structures are formed through the uniform incorporation of silver (Ag) nanoflowers with aluminium (Al) micro-supporters. The underlying mechanism is systematically investigated, visualizing that the solvents used in galvanic displacement have a maj...
The main target for a commercially successful solar cell production is to decrease the cost/Watt-peak ratio. In the last years new techniques like fine line screen printing or plating of the front electrode entered the market. These new techniques enable a reduction of Ag or Ag containing paste of the front grid or even a substitution of this metal. Cu is a suited candidate because of its high ...
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