نتایج جستجو برای: structure h
تعداد نتایج: 2004680 فیلتر نتایج به سال:
Single crystals of Schiff base compound 2-[(2-chloro-4-nitrophenyl) iminomethyl] phenol (1) were grown by the slow evaporation technique at room temperature. The crystal structure of the title compound was determined by single crystal X-ray diffraction. The title compound crystallizes in the monoclinic system, space group P21, with two symmetry independent molecules. Intramolecular O-H···N hydr...
From the aerial parts of Tanacetum balsamita L. (Compositae) a flavonol aglycon was isolated using chromatographic techniques. The structure of this compound was determined using spectroscopic methods (UV, H-NMR and MS) as 3',4',5,7-Tetrahydroxy flavonol (Quercetin).
the iranian banking sector has undergone huge and substantial reform in the last decade; privatization, establishment of private banks and development of modern technologies (it). this paper investigates the competitive condition of the iranian banking industry over the period 2005-2010 using the h-statistic proposed by panzar and rosse. the properties of this non-structural methodology make it...
The co-crystal compound of 4,4'-bipyridine 3-nithrophthalic acid (1) was obtained by the reaction of 4,4'-bipyridine, 3-nithrophthalic acid and calcium chloride (1:1:1 molar ratio) in solvents mixture H2O/MeOH under solution condition. The crystal structure of this compound was determined by elemental analysis, IR spectroscopy and single crystal X-ray diffraction method. Crystallographic data f...
In this paper, a new embedded Z-H (EZ-H) buck-boost converter is proposed. In this topology, two identical dc voltage sources are embedded in a LC network in a series connection with the inductors. The proposed converter eliminates the shoot-through (ST) switching state and there is no need for a front-end diode. Other advantages of the proposed topology are having capability of buck and boost ...
this study tried to explore disciplinary variations of web blurbs across soft and hard knowledge fields on the one hand, and to illustrate how academic publishers exploit interactional metadiscourse devices in move structure of their blurbs on the other.
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