نتایج جستجو برای: سوپرآلیاژ ni span c 902
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The title complex, [Ni(C(15)H(10)BrClN(2)O(2))(C(5)H(5)N)], displays a square-planar coordination geometry around the Ni(II) ion, formed by the tridentate hydrazone and monodentate pyridine ligands, with the N atoms in a trans arrangement about the Ni center.
Abstract Recently alcohol fuel cells has been increased consideration because of their environmental friendliness, high energy conversion efficiency and low emissions. Many effort have been made to improve the electro-oxidation performance of alcohols such as methanol, ethanol and propanol. In this work, a new method for ethanol oxidation based on core–shell titanium dioxide / carbon nanofib...
The title trinuclear complex, [Ni(3)(C(9)H(7)N(2)O(4))(2)(C(5)H(5)N)(8)], possesses a crystallographically imposed center of symmetry occupied by one Ni(II) ion. Each of the three Ni(II) ions is coordinated by two O and four N atoms, respectively, in a distorted octa-hedral geometry. In the crystal, weak inter-molecular C-H⋯π inter-actions link the mol-ecules into ribbons propagating in the [10...
News interfaces are largely driven by recent information, even if many events are better interpreted in context of previous events. To address this problem, we consider the task of constructing an explicit representation of a “saga”—a longrunning series of related events. We define a timeline as a concrete representation of a “saga” and we propose two unsupervised methods for timeline construct...
<span id="docs-internal-guid-529002fe-7fff-9959-c67f-aaff40a6b7b4"><span>La contaminación por dióxido de carbono (CO</span><span><span>2</span></span><span>) va en aumento y, Argentina, el sector la construcción es responsable del 40 %. Para disminuir impacto las emisiones, los edificios existentes requieren soluciones adaptación. El objetivo este...
This paper discusses the connection between social capital and trends in economic well-being. Although arguments for the growth-enhancing aspects of social capital are concerned with the impacts of social capital on well-being, in practice research has focussed on the relationship between social capital and trends in GDP per capita. However, there are severe disadvantages to using GDP per capit...
Cr-Ni coatings with the mass ratios of 17% Cr-83% Ni, 20% Cr-80% Ni and 24% Cr-76% Ni were fabricated on H13 hot work mould steel using a laser cladding (LC). The surface-interface morphologies, chemical elements, surface roughness and phase composition of the obtained Cr-Ni coatings were analysed using a scanning electron microscope (SEM), energy disperse spectroscopy (EDS), atomic force micro...
The title compound, [Ni(2)(C(7)H(5)O(3))(4)(C(7)H(6)N(2))(4)][Ni(C(7)H(5)O(3))(2)(C(7)H(6)N(2))(2)]·6H(2)O, is a mononuclear/dinuclear nickel(II) cocrystal, the two mol-ecular species inter-acting through hydrogen bonds that involve the uncoordinated water mol-ecules. In the mononuclear species, the Ni(II) ion, located on an inversion center, is coordinated by two 1H-benzimidazole (bzim) ligand...
The nickel(0) fragment [(dippe)Ni] has been found to react with a variety of aromatic nitriles. Initial pi-coordination to the C=C and Ctbd1;N bonds of 2-cyanoquinoline is found to lead ultimately to C-CN oxidative addition. 3-Cyanoquinoline reacts similarly, although no eta(2)-CN complex is observed. 2-, 3-, And 4-cyanopyridines react initially to give eta(2)-nitrile complexes that then lead t...
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