نتایج جستجو برای: twist angle of section

تعداد نتایج: 21184723  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1393

asymmetric membranes are widely used in many industrial membrane separation processes. the major advantage of membrane filtration over the conventional process is its ability to remove a wider spectrum of particles without using any chemicals. hollow fiber configuration offer many advantages over flat-sheet or tubular membranes. the spinning process of hollow fiber may look simple, yet it is te...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه امام رضا علیه السلام - دانشکده ادبیات و زبانهای خارجی 1392

cognitive studies of translation process have recently been awarded a great deal of attention. there exists a psychological angle to almost all translation activities. the present study, thus, deals with analysing the relationships between iranian prospective translators tolerance for ambiguity (ta) and their willingness to translate (wtt). the research was conducted as a mixed methods study, d...

Journal: :iranian journal of medical physics 0
zahra ojaghi-haghighi echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, iran azin alizadehasl echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, iran atoosa mostafavi echocardiography research center, shariati medical and research center, tehran university of medical sciences, tehran, iran hassan moladoust cardiovascular research center, school of medicine, guilan university of medical sciences, rasht, iran nasim naderi department of heart failure and transplantation, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, iran majid maleki echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, iran

introduction left ventricular (lv) twist is believed to store potential energy and plays an important role in generating diastolic suction. recent advances in echocardiography techniques have allowed quantification of lv twist. the aim of the present study was to compare lv twist and torsion in healthy human subjects determined by velocity vector imaging (vvi) and tissue doppler imaging (tdi) a...

2000
J. Bartels K. Golec - Biernat K. Peters

We investigate the influence of higher twist corrections to deep inelastic structure functions in the low-Q 2 and small-x HERA region. We review the general features of the lowest-order QCD diagrams which contribute to twist-4 at small-x, in particular the sign structure of longitudinal and transverse structure functions which offers the possibility of strong cancellations in F 2. For a numeric...

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