نتایج جستجو برای: strain effect

تعداد نتایج: 1828260  

Journal: :Journal of the Society of Naval Architects of Japan 1970

1995
M. A. VASILIEV

Many of important properties of integrable systems and conformal models in two dimensions originate from underlying infinite-dimensional symmetries. Higher-spin (HS) extensions of the Virasoro symmetry acquired much attention during recent years. In particular, d2 conformal matter models with gauged HS symmetries have been extensively studied for the cases of WN [1], ω∞ [2] and W1+∞ [3, 4] alge...

Journal: :archives of cardiovascular imaging 0
zahra ojaghi haghighi echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran; md, facc,echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran. tel: +98-2123922134, fax: +98-2122055594 azin alizadehasl cardiovascular research center, tabriz university of medical sciences, tabriz, ir iran majid maleki echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran nasim naderi echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran maryam esmaeilzadeh echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran fereidoon noohi echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran

background recently, assessment of the atrial motion and deformation indices obtained via doppler myocardial imaging (dmi) has been proposed as a new method of exploring the atrial function. objective our aim was to assess the right atrial (ra) regional function using myocardial velocities, strain, and strain rate imaging (sri) and compare it with the function of the inter-atrial septum (ias) a...

ژورنال: مواد پرانرژی 2019

     Combustion of solid particles from the two aspects of "safety of industries related metal particles" and "optimization of combustion in solid fuels engines " is important. At this article the effect of strain rate on the counterflow premixed flame of aluminum particles is studied. Energy equations for counterflow combustion of metal particles derived and analytically solved. Curve of flame...

The effect of geometrical parameters involved in vortex extrusion (VE) die design, on AA1050 aluminium alloy processed by VE were investigated using finite element analysis (FEA) and response surface methodology (RSM). For this, VE die length (L), reduction in area (RA), twist angle , and position of control points in Beziers' formulation (C1) were considered as input parameters and strain inho...

H.Y. Adamu I.I. Adedibu M. Kabir, M.R. Hassan N.M. Eche O.M. Daudu R.K. Idris R.O. Sulaiman S.B. Abdu S.M. Yashim T.S. Olugbemi

An experiment was conducted to determine the differences in body weight (BW), feed intake (FI) and some egg production traits of two strains of layer chickens (Isa Brown and Nera Black) and correlate the relationships between the tested traits. The study commenced when the layers were 26 weeks old and a total of 200 (100 of each strain) were used. Sixty fresh eggs (30 from each strain) were col...

An axisymmetric hot closed die-forging process has been studied by physical modeling technique using the plasticine. To observe the material flow pattern, layers of plasticine with different colors were used. The normal direction to the layers was considered a principal direction. The strain distribution was obtained by measuring the thickness of the plasticine layers. Based on the strain distr...

Hajir Saberi, Hosein Chegini, Manijhe Mokhtari-Dizaji, Rafati Rafati,

Instruction: Measurement of brachial artery diameter variation by ultrasound methods has commonly been used to test the endothelial function. It is known that the artery diameter is increased by flow stimulation. Therefore in the present study, the effect of external obstruction, as flow stimulation, on the radial strain of the brachial artery was assessed. Also the biomechanical behavior of...

In this study, the effect of finite strain on bending of the geometrically nonlinear of micro laminated composite Euler-Bernoulli beam based on Modified Couple Stress Theory (MCST) is studied in thermal environment. The Green-Lagrange strain tensor according to finite strain assumption and the principle of minimum potential energy is applied to obtain governing equation of motion and boundary c...

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