نتایج جستجو برای: normal stress

تعداد نتایج: 970627  

Journal: :Advances in Materials Science and Engineering 2020

Journal: :npj quantum materials 2022

Abstract To provide a foundation for theoretical models of high-temperature superconductivity, experimental research has sought to establish correspondences between macroscopic transport coefficients on the one hand, and atomic-scale correlation functions measured by spectroscopic scattering probes other hand. This avenue been confounded gradual onset electronic ordering phenomena corresponding...

Journal: :Materials & Design 2021

In the present study we elucidate nature of local strain statistics evolution during tensile deformation in polycrystalline materials. A rate-independent formulation was implemented within a crystal plasticity framework by means representative volume element (RVE) analysis. Local elastic strain, as well stress, were found to obey normal distribution, whereas plastic conforms lognormal distribut...

Journal: :dental research journal 0
seyed ebrahim jabbarifar neda ahmady seyed ahmad reza sahafian fatemeh samei shima soheillipour

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 backgroun: little research has been carried out on whether the parental stress affects children's oral health in general and dental caries in particular. this study aimed to investigate the association between parental stress and early childhood caries (ecc). methods: a cross-sectional study was designed that included 250 ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

one of the most commonly used techniques to reduce the corrosion rate of rebar in concrete is addition substances named corrosion inhibitors into the concrete. corrosion inhibitor is chemical compounds that were added to concrete to prevent corrosion of steel in concrete. sodium nitrate is a type of anodic inhibitors that this study investigatesthe effect of this inhibitor on the properties of ...

Mozhgan Sarvari, Reza Darvishzadeh, Roghayeh Najafzadeh

Drought stress is a serious adverse factor limiting growth and productivity of sunflower. Evaluation of defense systems is important for producing resistant cultivars. In this study, some agro-morphological and molecular characteristics of six sunflower lines were evaluated under normal and irrigation at 40 and 60% of field capacity in randomized complete block design (RCBD). The results showed...

In order to evaluate the effect of drought stress and determine of effective traits on grain yield and estimate of genetic parameters, 18 mutant rice lines were studied in normal and drought stress conditions. The experiments were carried out separately using randomized complete block design with three replications during cropping season 2014-2015 at Iranian Rice Research Centers in North of Ir...

Journal: :crop breeding journal 2012
a. beheshti

this study was conducted to evaluate traits that have an effect on yield, and genetic variation for these traits, including dry matter accumulation, remobilization, and traits associated with them, in 10 grain sorghum genotypes obtained from the national plant gene bank of iran under moisture stress conditions. field trials were carried out in the 2008 cropping season using split-plot arrangeme...

Journal: :iranian journal of nuclear medicine 0
sanaz katal research center for nuclear medicine, dr. shariati hospital, tehran university of medical sciences, tehran, iran arman hassanzadeh-rad research center for nuclear medicine, dr. shariati hospital, tehran university of medical sciences, tehran, iran mohammad eftekhari research center for nuclear medicine, dr. shariati hospital, tehran university of medical sciences, tehran, iran armaghan fard-esfahani research center for nuclear medicine, dr. shariati hospital, tehran university of medical sciences, tehran, iran davood beiki research center for nuclear medicine, dr. shariati hospital, tehran university of medical sciences, tehran, iran babak fallahi research center for nuclear medicine, dr. shariati hospital, tehran university of medical sciences, tehran, iran alireza emami-ardekani

introduction: peripheral vascular disease (pvd) is a major cause of morbidity and is associated with coronary artery disease (cad). we aimed to perform lower limb perfusion scan (llps) in patients referred for myocardial perfusion imaging (mpi) and estimate prevalence of pvd in subgroups with normal and abnormal mpi results. we also compared quantitative indices of llps in patients with and wit...

Journal: :iranian journal of nuclear medicine 2014
babak fallahi armaghan fard-esfahani arman hassanzadeh-rad alireza emami-ardekani davood beiki

introduction: the main purpose of this study was to compare transient ischemic dilation (tid) ratios in spect-low dose ct and spect myocardial perfusion imaging (mpi) by application of different quantitative programs and quantify the possible shift in the upper normal limits of tid ratio in the spect-ct mpi. methods: 149 patients with low pre-test probability for coronary artery disease (cad),...

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