نتایج جستجو برای: d structures nabighian
تعداد نتایج: 1006397 فیلتر نتایج به سال:
We study various notions of “tameness” for definably complete expansions of ordered fields. We mainly study structures with locally o-minimal open core, d-minimal structures, and dense pairs of d-minimal structures.
understanding how a cutout influences the load bearing capacity and buckling behavior of cylindrical shells is fundamental in the design of structural components used in automobiles, aircrafts, and marine structures. in this article, simulation and analysis of steel cylindrical shells with various lengths, include quasi elliptical cutout, subjected to axial compression were systematically carri...
Edita Stokić1*, Reza Hakkak2,3, Andrea Romani4, Aleksandar Kupusinac5, Esma Isenović6, Dragana Tomić-Naglić1, Biljana Srdić-Galić7, Slađana Pejaković1 and Dragana Radošević7 1Medical Faculty in Novi Sad, University of Novi Sad, Clinical Center of Vojvodina, Novi Sad, Serbia 2Department of Dietetics and Nutrition, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA 3Arkansas ...
with the aim of recognizing the steric effects on the silylenic r2c6h6si structures, dft calculationsare carried out on 8 structures of r2c6h6si (where r is hydrogen (h), methyl (me), isopropyl (i-pro),and tert-butyl (tert-bu)). these species are at either triplet (t) or singlet (s) states. singlet–tripletenergy separations ( me (20.32) > t-bu (15.92).all singlet states of r2c6h6si, are more st...
tetrazole-containing compounds have been the subject of much recent research because of theirpotential as high energy density materials (hedms). in this work, theoretical studies on the 1htetrazolylderivatives of tetrahedrane were done at the density functional theory (dft) method withthe 6-31g(d) basis set without any symmetrical restrictions in order to find the structural andenergetically pr...
magnesium oxide nanotubes of finite length are investigated by the density functional theory (dft) at the b3lyp/6-31g (d) level. the (6, 0) zigzag and (4, 4) armchair of mgo nanotubes were considered and nuclear magnetic resonance properties including isotropic and anisotropic chemical shielding parameters (csi and csa) were calculated for 25mg and 17o atoms of the optimized structures for the ...
multilevel inverters has big placement advantages in power electronics and its application can be mentioned to facts tools such as upfc – d-statcom. therefore, nowadays multilevel inverters have created vast field’s research and researchers are trying to present appropriate structures with fewer keys and greater advantages. the main advantages of multilevel inverters mentioned are low-key volta...
The present research article relates to the discovery of the novel drugs based on Zonisamide to treatment of autism disease. In first step, the electronic properties, reactivity and stability of the said compound are discussed. To attain these properties, the said molecular structure is optimized using B3LYP/6-311++G(d,p) level of theory at room temperature. The frontier molecular orbitals (FMO...
The separation of azeotropic mixtures is often energy intensive, thus process intensification (PI) becomes an attractive route to enhance efficiency. Two the most commonly used intensifications are dividing wall columns and hybrid distillation-membrane processes. In this work, three typical distillation structures, followed by pervaporation (D-P), (P-D), then (D-P-D), considered compared with a...
before a president practically begins his four-year term of office in iran, a formal inaugural ceremony is held in the parliament. being attended by national dignitaries and representatives from other countries, the inauguration of iran's seventh president, hasan rouhani, was spectacular in several respects. the current study aimed at investigating the generic structure and rhetorical move...
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