نتایج جستجو برای: trapezohedron

تعداد نتایج: 92  

2008
A. A. SEPAHI

The study area is a part of the Sanandaj-Sirjan metamorphic belt comprising lowto high-grade regional and contact metamorphic rocks that are intruded by various plutonic bodies. Garnet crystals are abundant in pelitic schists, amphibole schists, migmatites, hornfelses and aplites. They are mostly almandinerich (XAlm>60) pyralspite garnets and show dodecahedron, trapezohedron and mixed (dodecahe...

Journal: :Chemical communications 2015
Xiguang Han Xiao Han Linqiang Sun Shengguang Gao Liang Li Qin Kuang Zhaoxiong Xie Chao Wang

Nanocrystals with high-index facets usually exhibit higher catalytic activities than those with only low-index facets. Trapezohedron-shaped (TS) In2O3 particles with exposed high-index {211} facets were successfully synthesized in an oleic acid (OA) and trioctylamine (TOA) system. It has been demonstrated that the gas sensing activity of TS In2O3 particles with exposed high-index {211} facets i...

حسین میرزایی, زهرا , حسین میرزایی, زهره , دادخواه, رسول, سپاهی, علی اصغر , مؤذن, محسن,

The study area is a part of the Sanandaj- Sirjan metamorphic belt. The Hamadan metamorphic rocks can be divided into three groups including regional metamorphic rocks, contact metamorphic rocks and migmatites. Garnet crystals are usually common in all of the metamorphic rocks (except for slates and phyllites) and in the igneous rocks (i.e. aplite, pegmatite and monzogranite). These garnets, fro...

Journal: :iranian journal of science and technology (sciences) 2007
a. a. sepahi

the study area is a part of the sanandaj-sirjan metamorphic belt comprising low- to high-graderegional and contact metamorphic rocks that are intruded by various plutonic bodies. garnet crystals areabundant in pelitic schists, amphibole schists, migmatites, hornfelses and aplites. they are mostly almandinerich(xalm>60) pyralspite garnets and show dodecahedron, trapezohedron and mixed (dodecahed...

2012
Otto ROESCHEL

We start with a special polyhedron, the so-called ‘trapezohedron’ (see E. WEISSTEIN [11]). It is dual to an antiprism and can be generated as the intersection of two suitable congruent regular pyramids with regular n-gons as directing polygons (n > 2). Its faces are 2n congruent trapezoids (kites). We use this polyhedron to construct some generalisations of the Fulleroid-like mechanisms describ...

2017
Sheikh Mahatabuddin Yuichi Hanada Yoshiyuki Nishimiya Ai Miura Hidemasa Kondo Peter L. Davies Sakae Tsuda

A supersoluble 40-residue type I antifreeze protein (AFP) was discovered in a righteye flounder, the barfin plaice (bp). Unlike all other AFPs characterized to date, bpAFP transitions from moderately-active to hyperactive with increasing concentration. At sub-mM concentrations, bpAFP bound to pyramidal planes of ice to shape it into a bi-pyramidal hexagonal trapezohedron, similarly to the other...

Journal: :Small 2017
Jing Fan Shin-Hyun Kim Zi Chen Shaobing Zhou Esther Amstad Tina Lin David A Weitz

Compressed monodisperse emulsions in confined space exhibit highly ordered structures. The influence of the volume fraction and the confinement geometry on the organized structures is investigated and the mechanism by which structural transition occurs is studied. Based on the understanding of ordering behavior of compressed emulsions, a simple and high-throughput method to fabricate monodisper...

2002
Marguerite C Cronk Edmond P Fitzgerald

The purpose of this paper is to draw attention to an innovative use of literature in social science research where the literature may not only be seen as a secondary source of data (Strauss & Corbin 1990) but may also serve as the basis for theory building (Lewis & Grimes 1999; Saunders et. al. 1999). This will be exemplified by attempting to construct a theory of ‘IS business value’ from the l...

2007
SUSAN C. ALBERTS

K inship among animals has important implications for their behaviour, as it determines their opportunities for nepotism and their risk of inbreeding (e.g. Hamilton 1963; Wade 1979; Trontti et al. 2005). The most accurate way to assess kinship is through complete knowledge of pedigrees (we use the term kinship to refer to categorical levels of coancestry, as would be derived from pedigree const...

2003
JAIME ANGULO PAVA

This work presents new results about the instability of solitarywave solutions to a generalized fifth-order Korteweg-deVries equation of the form ut + uxxxxx + buxxx = (G(u, ux, uxx))x, where G(q, r, s) = Fq(q, r) − rFqr(q, r) − sFrr(q, r) for some F (q, r) which is homogeneous of degree p+ 1 for some p > 1. This model arises, for example, in the mathematical description of phenomena in water w...

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