نتایج جستجو برای: strain space

تعداد نتایج: 709386  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1377

در این مجموعه قصد آن داریم که در زمینه کیهانشناسی کوانتومی پس از بدست آوردن معادله ویلر دویت از طریق کوانتش کانونیک ، با در نظر گرفتن یک مدل اسپینوری این معادله را در mini-spuper space دوبعدی r2 حل نمائیم، بطوریکه بتوان برای توابع موج اسپینورگونه بدست آمده، جریانی پایدار و نیز یک چگالی احتمال با مقدار مثبت و معین تعریف نمود.

Journal: :journal of sciences islamic republic of iran 0

with the aim of the secretion of human granulocyte macrophage-colony stimulating factor (hgm-csf) in escherichia coli, hgm-csf cdna was fused in-frame next to the signal sequence of st toxin (st-i) of exteroxigenic e. coli, containing 53 or 19 amino acids of signal peptide. the fused stsig::hgm-csf coding fragments were inserted into a t7-based expression plasmid. the recombinant plasmids were ...

2014
E. Pan J. H. Yuan W. Q. Chen W. A. Griffith

Based upon the fundamental solution to a single straight dislocation segment, a complete set of exact closed-form solutions is presented in a unified manner for elastic displacements and strains due to general polygonal dislocations in a transversely isotropic half-space. These solutions are systematically composed of two parts: one representing the solution in an infinite transversely isotropi...

Journal: :Physical review research 2022

Nonuniform elastic strain is known to induce pseudo-Landau levels in Dirac materials. But these are hardly resolvable an analytic fashion when the strong, because of emerging complicated space dependence both strain-modulated Fermi velocity and strain-induced pseudomagnetic field. We analytically characterize solution experimentally accessible strongly bent graphene nanoribbons, by treating eff...

Journal: :international journal of preventive medicine 0
habiballah dehghan ehsanollah habibi peymaneh habibi mohammad reza maracy

introduction: physiological, anthropometrical and thermal perceptual are the most important factors affecting thermoregulation of men and women in workplaces. the purpose of this study was determining the validity of a questionnaire method for assessing women’s heat strain in workplaces. methods: this cross‑sectional study was carried out on 96 healthy women. data were continuously collected ov...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد یزد - دانشکده شیمی 1392

چکیده روغن اسانسی اندام های هوایی دو گونه گیاهی ایران از خانواده نعنائیان (nepeta persica، nepeta asterotricha) به دو روش تقطیر با آب و head space به دست آمد و ترکیبات موجود در آن ها به وسیله کروماتوگرافی گازی همراه با طیف سنجی جرمی جداسازی و شناسایی گردید. در روغن اسانسی حاصل از اندام هوایی n. persica، 18 ترکیب از 22/92% کل اسانس شناسایی شد و محصولات عمده (5/16%) 4a?, 7?, 7a? nepetalactone، ...

Journal: :inorganic chemistry research 2015
ahmad amiri farzaneh fadaei kurt schenk-joß

the mononuclear complex [cu(l)(ch3cn)(pph3)]clo4, (1), (l= 2,5-diphenyl-3,4-bis(2-pyridyl)cyclopenta-2,4-dien-1-one), has been synthesized and investigated by elemental analysis, ir, 1h nmr, uv-vis spectroscopic methods and x-ray diffraction. the complex crystallizes in the non-centrosymmetric space group p212121 in accord with the asymmetric (atropisomer) cu centre. its coordination polyhedron...

Journal: :Sustainability 2023

Continuous planting is the primary method for managing Eucalyptus plantations. The “space-replacing time” approach assesses growth parameters of trees in China across generations, including height, diameter at breast height (DBH), slenderness ratio, trunk oblateness, and longitudinal strain. findings reveal: (1) significant variations strain occur among with average increasing noticeably; (2) g...

In this work, structural and magnetic properties of LaMnO3+δ compound prepared by citrate precursor method and annealed in presence of oxygen are investigated. The structural characterization of LaMnO3+δ by X-ray powder diffraction and using X’pert package and Fullprof program is evidence for a rhombohedral structure (R-3c space group) confirmed by FTIR measurement. The magnetic measurements sh...

M. Bayatlou S.R. Sabbagh Yazdi,

A constitutive model based on two–dimensional unstructured Galerkin finite volume method (GFVM) is introduced and applied for analyzing nonlinear behavior of cracked concrete structures in equilibrium condition. The developed iterative solver treats concrete as an orthotropic nonlinear material and considers the softening and hardening behavior of concrete under compression and tension by using...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید