نتایج جستجو برای: strain and stress control

تعداد نتایج: 17106423  

Size-dependent longitudinal and torsional vibrations of nano-beams are examined by two-phase mixture integral elasticity. A new and efficient elastodynamic model is conceived by convexly combining the local phase with strain- and stress-driven purely nonlocal phases. The proposed stress-driven nonlocal integral mixture leads to well-posed structural problems for any value of the scale parameter...

Journal: :iranian journal of basic medical sciences 0
titin andri wihastuti department of biomedical, faculty of medicine, brawijaya university, malang, indonesia djanggan sargowo department of cardiology, faculty of medicine, brawijaya university, malang, indonesia teuku heriansyah department of cardiology, faculty of medicine, syiah kuala university, aceh, indonesia yasmin eka aziza bachelor programme, faculty of medicine, brawijaya university, malang, indonesia dyah puspitarini bachelor programme, faculty of medicine, brawijaya university, malang, indonesia amalina nur iwana bachelor programme, faculty of medicine, brawijaya university, malang, indonesia

objective(s):atherosclerosis is chronic inflammatory process triggered by oxidative stress. oxidative stress can increase hydrogen peroxide (h2o2)level, which induce atherosclerosis through the processes such as formation of perivascular adipose tissue (pvat), foam cells, and atherosclerotic plaque. antioxidant is needed to control negative effects of oxidative stress. one source of antioxidant...

Magnetic shape memory properties of Ni-Mn-Ga single crystals were characterized by measurement of stress-induced martensite reorientation under constant magnetic fields. Also magnetic field-induced strain as a function of the applied magnetic field under different constant compressive stress levels has been investigated. All the experiments were performed at room temperature in which the sample...

Journal: :international journal of occupational hygiene 0
farideh golbabaei department of occupational health, school of public health, tehran university of medical sciences, tehran, iran. mohammadreza monazzam department of occupational health, school of public health, tehran university of medical sciences, tehran, iran. rasoul hematjo school of public health, bushehr university of medical sciences, bushehr, iran. mostafa hosseini department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran. somayeh fahang-dehghan department of occupational health, school of public health, tehran university of medical sciences, tehran, iran.

heat stress is well recognized among the hazardous physical agents that might be present during work. this study aims to compare wbgt index at acclimated and unacclimated people to permissible threshold limit value and study the differences between physiological parameters at them. twenty one healthy men were participated in the study. all of the subjects were monitored in two different weather...

In this paper, plastic flow behavior and micro structural evolution of Ti-6Al-4V alloy in temperature range of 750-1050 °C and strain rate range of 0.001-0.1 (S-1) in isotherm compression condition were investigated. The purpose was to estimate activation energy of globularization of lamellar structure and analyze this process kinetically. True Stress-strain curves obtained at the temperat...

پایان نامه :0 1374

the research questions were as follows: 1. is there any relationship between the students concious awareness of the form and implications of the conjuncations and their improvement in using appropriate conjunctions? 2. does students knowledge of the from and the implications of the conjunctions help them to produce more coherent writings. 3. does a comparison between english conjunctions and th...

Journal: :iranian journal of materials forming 2014
s.m.h. mirbagheri j. khajehali

the brass tubes with foam cores of alsi7sic3, alsi7sic3fe1 and alsi7sic3fe3 were produced as the crush-boxes with circle and square cross-section. then axial compressive behavior and energy absorption capability of the foam-filled tubes were investigated during the quasi-static progressive plastic buckling. the uniaxial compressive stress–strain curves of the foam-filled brass tubes exhibited t...

Journal: :American Journal of Civil Engineering and Architecture 2014

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1393

due to extraordinary large amount of information and daily sharp increasing claimant for ui benefits and because of serious constraint of financial barriers, the importance of handling fraud detection in order to discover, control and predict fraudulent claims is inevitable. we use the most appropriate data mining methodology, methods, techniques and tools to extract knowledge or insights from ...

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