نتایج جستجو برای: au
تعداد نتایج: 78630 فیلتر نتایج به سال:
Porphyrin/Au and Au/porphyrin/Au systems were prepared by vacuum evaporation and vacuum sputtering onto glass substrate. The surface morphology of as-prepared systems and those subjected to annealing at 160°C was studied by optical microscopy, atomic force microscopy, and scanning electron microscopy techniques. Absorption and luminescence spectra of as-prepared and annealed samples were measur...
The structure and electronic properties of gold nanoparticles (Au 12, Au 13, Au 14, Au 15, Au 20, Au 34, and Au 55) have been investigated using Born-Oppenheimer ab initio molecular dynamic simulations of 50 to 80 ps in order to have an insight in the recently proposed fluxional character of nanosized gold. The dynamic changes in shape, symmetry, and atomic coordination of atoms within clusters...
Au nanoparticles (Au NPs)/CdTe/CdS QDs nanocomposite films were fabricated by deposition of Au NPs and layer-by-layer self-assembly of colloidal CdTe/CdS QDs. Photoluminescence (PL) spectra showed that Au NPs incorporation resulted in an increase of PL intensity about 16-fold compared with that of the samples without Au NPs. PL enhancement of Au NPs/CdTe/CdS QDs nanocomposite films can be contr...
The basic requirements of the CdS thin films on their applications are high optical transparency, low electrical resistivity, and better crystalinity (e.g.high orientation). Firstly, we prepared CdS films by thermal eveporation techniques on glass substrate and then studied their photoconductivity from room temperature to 200 . Secondly, we prepared CdS films with impurities of Cu, Ag, Au and...
In this paper, we introduce a new mathematical representation of an extensive game situation, called an information protocol, without using the hypothetical concepts such as nodes and branches. The necessity of introducing such a new construct has been emerging in our study of inductive game theory. Inductive game theory was initiated in Kaneko-Matsui [6] and was developed more extensively in K...
Although neural activity often reflects the processing of external inputs, intrinsic fluctuations in activity have been observed throughout the brain. These may relate to patterns of self-generated thought that can occur while not performing goal-driven tasks. To understand the relationship between self-generated mental activity and intrinsic neural fluctuations, we developed the New York Cogni...
Bulk metallic Au is chemically inert and catalytically inactive as a consequence of combination of valence d orbitals and diffused valence s and p orbitals. Recently, Au nanoparticles have been found to be catalytically active when supported on metal oxides such as TiO2, SiO2, Fe2O3, Co3O4, NiO, Al2O3, MgO, etc. 1 6 For example, Au nanoparticles supported on a TiO2(110) surface demonstrate cata...
M.I.T. Quart. Prog. Rept., 50, 11 (1963); (f) McLean, A. D., J. Chem. Phys., 32, 1959 (1960). 6 Clementi, E., C. Roothaan, and M. Yoshimine, Phys. Rev., 127, 1618 (1962). 7K = 1.75, a(2s)= -0.559 au; a(2p)= -0.312 au; a(H) -0.50 au. 8 For BH a(2s) = -0.909 au; a(2p) = -0.314 au; a(H) = -0.591 au. For BB a(2s) -0.920 au; a(2pr) = -0.189 au; a(2pir) = -0.179 au. 9 Newton, M. D., unpublished work....
Facial action unit (AU) detection and face alignment are two highly correlated tasks since facial landmarks can provide precise AU locations to facilitate the extraction of meaningful local features for AU detection. Most existing AU detection works often treat face alignment as a preprocessing and handle the two tasks independently. In this paper, we propose a novel end-to-end deep learning fr...
Physicochemical analyses of Au nanoparticle monolayer formation on a glass surface functionalized with 3-aminopropyltrimethoxysilane (APTMS) and ethyltrimethoxysilane (ETMS) were performed for fabricating a nanoarchitecture of metal nanoparticles using self-assembly. The Au nanoparticle surface density on the functionalized glass surface correlated linearly with the optical response because of ...
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