نتایج جستجو برای: shear current

تعداد نتایج: 845847  

2008
N. Kleeorin

A review of recent studies on a new mechanism of generation of large-scale magnetic field in a sheared turbulent plasma is presented. This mechanism is associated with the shear-current effect which is related to the W×J-term in the mean electromotive force. This effect causes the generation of the large-scale magnetic field even in a nonrotating and nonhelical homogeneous sheared turbulent con...

Journal: :مجله دانشکده دندانپزشکی مشهد 0
شاهین شاهین کسرایی shahin kasraie assistant professor, dept of operative dentistry, dental school, hamadan university of medical sciences, hamadan, iranاستادیار گروه ترمیمی و زیبائی دانشکده دندانپزشکی دانشگاه علوم پزشکی همدان زهرا زهرا خاموردی zahra khamverdi assistant professor, dept of operative dentistry, dental school, hamadan university of medical sciences, hamadan, iranاستادیار گروه ترمیمی و زیبائی دانشکده دندانپزشکی دانشگاه علوم پزشکی همدانسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences)

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2017
STEPHEN W. TSAI BLANK PAGE

Thi« report presents a method for determining shear modulus and shear strength of unidirectional flber-relnforced composites. The method Incorporates data from unlaxlal tensile and/or oompresslve tests at fiber orientations of 0, 45, and 90 degrees. The approach presented requires fewer specimens for shear strength determinations than current exlstinc procedures. ^ Distribution of this abstract...

2008
Igor Rogachevskii Nathan Kleeorin

An effect of a mean differential rotation on the nonlinear mean electromotive force in a turbulent flow is studied. An interaction of the mean differential rotation (i.e., a mean velocity shear) with a small-scale turbulent motions can cause a generation of a mean magnetic field even in a nonhelical turbulent fluid flow. This mechanism of a mean-field dynamo is associated with a ”shear-current”...

Mostaan, H., Safari, M. ,

In this paper, resistance spot welding process of AISI 201 stainless steel is studied experimentally. For this purpose, effect of welding current on quality of weld is investigated and relationships between welding current and fusion zone characteristics are examined. For determining mechanical properties such as maximum load and fracture mode, tensile - shear test of spot welds is performed.  ...

Mostaan, H., Safari, M. ,

In this paper, resistance spot welding process of AISI 201 stainless steel is studied experimentally. For this purpose, effect of welding current on quality of weld is investigated and relationships between welding current and fusion zone characteristics are examined. For determining mechanical properties such as maximum load and fracture mode, tensile - shear test of spot welds is performed.  ...

2010
Sébastien Manneville

Recent experimental techniques used to investigate shear banding are reviewed. After recalling the rheological signature of shear-banded flows, we summarize the various tools for measuring locally the microstructure and the velocity field under shear. Local velocity measurements using dynamic light scattering and ultrasound are emphasized. A few results are extracted from current works to illus...

A. Abdelraheem Farghaly,

High tall buildings are more susceptible to dynamic excitations such as wind and seismic excitations. In this paper, design procedure and some current applications of tuned mass damper (TMD) were studied. TMD was proposed to study response of 20 storey height building to seismic excitations using time history analysis with and without the TMD. The study indicates that the response of structur...

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