نتایج جستجو برای: critical angle

تعداد نتایج: 605626  

2018

This paper presents buckling studies made on skew plates using finite element. The effects of the skew angle, aspect ratio, length-to-thickness-ratio, fibre orientation angle, and numbers of layers in the laminate and laminate sequence on the critical buckling load factor (Kcr) of antisymmetric composite laminates have also been presented. The critical buckling load factor (Kcr) is found to inc...

2012
Ralf K. Heilmann Alex R. Bruccoleri Pran Mukherjee Mark L. Schattenburg

Recently developed Critical-Angle Transmission (CAT) grating technology in combination with x-ray CCD cameras and large collecting-area focusing optics will enable a new generation of soft x-ray spectrometers with unprecedented resolving power and effective area and with at least an order of magnitude improvement in figures-of-merit for emission and absorption line detection. This technology wi...

2000
P. Concus R. Finn M. Weislogel

Mathematical theory predicts that small changes in container shape or in contact angle can give rise to large shifts of liquid in a microgravity environment. This phenomenon was investigated in the Interface Configuration Experiment on board the NASA USML-2 Space Shuttle flight. The experiment’s “double proboscis” containers were designed to strike a balance between conflicting requirements of ...

2016
Ailin Zhang Qingfang Zhang Chao Sun

RESEARCH ARTICLE The Elastic Critical Load of Single Angle Columns Ailin Zhang, Qingfang Zhang and Chao Sun College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structure, Beijing 100124, China School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhua...

Journal: :Physical review letters 2009
James C Bird William D Ristenpart Andrew Belmonte Howard A Stone

Oppositely charged drops attract one another and, when the drops are sufficiently close, electrical stresses deform the leading edges of each drop into cones. We investigate whether or not the liquid cones coalesce immediately following contact. Using high-speed imaging, we find that the coalescence behavior depends on the cone angle, which we control by varying the drop size and the applied vo...

پایان نامه :موسسه آموزش عالی غیردولتی رودکی تنکابن - دانشکده ادبیات و زبانهای خارجی 1393

abstract the present study was an attempt to investigate the effect of critical thinking on writing ability of 60 iranian intermediate efl learners studying at chenar language institute in khuzestan, iran. to this end, the participants of the study were selected based on their performance in an pet test, a cornell critical thinking test form x and a pre-test of writing. the participants un...

Journal: :the archives of bone and joint surgery 0
anne-carolin doring orthopaedic hand and upper extremity service, yawkey center, suite 2100, massachusetts general hospital, boston, ma, usa celeste l. overbeek orthopaedic hand and upper extremity service, yawkey center, suite 2100, massachusetts general hospital, boston, ma, usa teun teunis orthopaedic hand and upper extremity service, yawkey center, suite 2100, massachusetts general hospital, boston, ma, usa stéphanie j.e. becker orthopaedic hand and upper extremity service, yawkey center, suite 2100, massachusetts general hospital, boston, ma, usa david ring chief orthopaedic hand service, yawkey center, suite 2100, massachusetts general hospital, boston, ma, usa

background: abnormal angulation of the lunate can be an indication of intercarpal pathology. on magnetic resonance images (mris) the lunate often looks dorsally angulated, even in healthy wrists. the tilt on individual slices can also be different and might be misinterpreted as pathological, contributing to inaccurate diagnoses and unnecessary surgery. the primary aim of this study was to deter...

Journal: :iranian red crescent medical journal 0
mahmoud bahari kashani mashhad orthopedic and trauma research center, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran amir reza kachooei mashhad orthopedic and trauma research center, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran hengameh ebrahimi faculty of medicine, mashhad university of medical sciences, mashhad, ir iran mohammad taghi peivandi mashhad orthopedic and trauma research center, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran; mashhad orthopedic and trauma research center, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran. tel.: +98-5118520028, fax: +98-5118596606, sara amelfarzad faculty of medicine, mashhad university of medical sciences, mashhad, ir iran nastoor bekhradianpoor orthopedic and trauma research center, mashhad university of medical sciences, mashhad, ir iran

conclusions although some of the orthopedic surgeons are not interested to manage these fractures surgically and most of them treat these cases conservatively (casting, etc.), in most displaced intra-articular calcaneal fractures, surgical treatment is the method of choice. moreover, in non-surgical treatment the prevalence of these complications among the patients is more and as a result, inev...

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