نتایج جستجو برای: especially in meso

تعداد نتایج: 16985452  

2013
Kyung-Hoon Lee Young-Woo Lee A-Ra Ko Guozhong Cao Kyung-Won Park

We report single-crystalline mesoporous molybdenum nitride nanowires (meso-Mo3N2-NWs) prepared by topotactic reaction using single-crystalline molybdenum oxide nanowires. The single-crystalline nature of meso-Mo3N2-NWs was clearly observed by field-emission transmission electron microscopy. The meso-Mo3N2-NWs exhibited mesoporous structure with 45 m/g in specific surface area and 4.6 nm in aver...

Journal: :Chemical science 2014
Stephen P Lathrop Mohammad Movassaghi

We describe the first application of our methodology for heterodimerization via diazene fragmentation towards the total synthesis of (-)-calycanthidine, meso-chimonanthine, and (+)-desmethyl-meso-chimonanthine. Our syntheses of these alkaloids feature an improved route to C3a-aminocyclotryptamines, an enhanced method for sulfamide synthesis and oxidation, in addition to a late-stage diversifica...

A.K. Bordbar H. Aghaie K. Zare M. Aghaie M. Keshavarz

In order to shed more light on the effect of peripheral groups of porphyrin core intophysicochemical properties and DNA binding behavior of porphyrins, we have chosen toinvestigate solution properties and calf thymus DNA binding behavior of meso-tetrakis (4-Nbenzyl-pyridyl) porphyrin (TBZPyP) and its Mn (III), Co (III), Ni (II) and Cu (II) complexesderivatives have been studied in thermodynamic...

2002
Michael Crozier Manuel Castells Jan van Dijk

The idea of network is employed across the social sciences though hardly with analytical unanimity. At one level, it is used as a simple descriptive template cast over empirical phenomena. At another, it is given greater explanatory power with at least meso-systemic implications. Far stronger analytical claims are made when it is mobilised to generate a systematic morphological account of conte...

Journal: :journal of physical & theoretical chemistry 2005
h. aghaie m. keshavarz k. zare m. aghaie a.k. bordbar

in order to shed more light on the effect of peripheral groups of porphyrin core intophysicochemical properties and dna binding behavior of porphyrins, we have chosen toinvestigate solution properties and calf thymus dna binding behavior of meso-tetrakis (4-nbenzyl-pyridyl) porphyrin (tbzpyp) and its mn (iii), co (iii), ni (ii) and cu (ii) complexesderivatives have been studied in thermodynamic...

Journal: :international journal of civil engineering 0
d.p. chen 2# west beijing raod, nanjing city, china c.w. miao 2# west beijing raod, nanjing city, china j.p. liu 2# west beijing raod, nanjing city, china m.s. tang 30# xinmofan road,nanjing city, china

this paper presents theoretical and numerical state-of-the-art information in the field of hygro-thermo-mechanical deformation simulation in structural concrete. the aspects discussed include coupled hygro-thermo-mechanical performance of porous materials including concrete, multi-scale simulation of concrete properties especially the volumetric and structural deformation performance, and the m...

2014
Steve Dahlskog Julian Togelius

In this paper we present a search-based approach for procedural generation of game levels that represents levels as sequences of micro-patterns and searched for meso-patterns. The micro-patterns are “slices” of original human-designed levels from an existing game, whereas the meso-patters are abstractions of common design patterns seen in the same levels. This method generates levels that are s...

Journal: :Beilstein Journal of Organic Chemistry 2005
Charles P Casey Neil A Strotman Ilia A Guzei

The reaction of di-(o-acetylphenyl)acetylene (1) with excess dimethyl acetylenedicarboxylate (DMAD) produced bis-DMAD adducts meso-3 and rac-3. This transformation is suggested to involve thermal rearrangement of 1 to the intermediate 3,3'-dimethyl-1,1'-biisobenzofuran (A), and subsequent Diels-Alder cycloadditions of two equivalents of DMAD to A. The isolation of trapping products meso-3 and r...

2009
Tobias Kloubert Martin Schulz Helmar Görls Manfred Friedrich Matthias Westerhausen

In a Henry-type reaction nitromethane reacts with N-(2-pyridylmethylidene)-methylamine (1) yielding 1-methylamino-1-(2-pyridyl)-2-nitromethane (2) in nearly quantitative yield. This orange compound decomposes slowly in an inert gas atmosphere and fast in contact with air. Therefore 2 has to be stored at −78 ◦C as a methanol solution. Reduction of 2 with hydrogen in the presence of a Pd/C cataly...

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