نتایج جستجو برای: stir

تعداد نتایج: 4995  

2015
Anna Kociemba Justyna Rajewska-Tabor Magdalena Lanocha Magdalena Janus Andrzej Siniawski Katarzyna Karmelita-Katulska Magorzata Pyda

Methods We have analyzed 26 consecutive patients: 22 male, average age: 27 years (range 13-43) with clinical diagnosis of acute myocarditis. The CMR examinations were performed on a 1,5 T scanner using an eight-channel phasedarray coil combined with 4-6 elements of spinal coil. All patients underwent assessment of myocardial oedema: T2weighted triple inversion recovery (STIR), T1-weighted turbo...

2014
Yang Pei Jun-jun Fan Xiao-qiang Zhang Zhi-yong Zhang Min Yu

To investigate the reparative efficacy of tissue-engineered osteochondral (TEO) graft for repairing the osteochondral defect in goat, we designed a double-chamber stirring bioreactor to construct the bone and cartilage composites simultaneously in one β-TCP scaffold and observed the reparative effect in vivo. The osteochondral defects were created in goats and all the animals were divided into ...

2016
Yufeng Sun Nobuhiro Tsuji Hidetoshi Fujii Giuseppe Casalino

The ultrafine grained (UFGed) 1050 Al plates with a thickness of 2 mm, which were produced by the accumulative roll bonding technique after five cycles, were friction stir butt welded to 2 mm thick 6061-T6 Al alloy plates at a different revolutionary pitch that varied from 0.5 to 1.25 mm/rev. In the stir zone, the initial nano-sized lamellar structure of the UFGed 1050 Al alloy plate transforme...

2013
Jasper M. Morrow Emma Matthews Dipa L. Raja Rayan Arne Fischmann Christopher D.J. Sinclair Mary M. Reilly John S. Thornton Michael G. Hanna Tarek A. Yousry

We assessed the presence, frequency and pattern of MRI abnormalities in non-dystrophic myotonia patients. We reviewed T1-weighted and STIR (short-tau-inversion-recovery) 3T MRI sequences of lower limb muscles at thigh and calf level in 21 patients with genetically confirmed non-dystrophic myotonia: 11 with CLCN1 mutations and 10 with SCN4A mutations, and 19 healthy volunteers. The MRI examinati...

2016
S. Sree Sabari

Background: AA2519-T87 is a new armour grade aluminium alloy employed in the fabrication of light combat military vehicles. Joining of this material using fusion welding processes, results in the formation of solidification defects like porosity, alloy segregation and hot cracking. In order to overcome the solidification related problems, solid state welding processes such as friction stir weld...

Journal: :Talanta 2011
Zhigang Xu Chaoyong Song Yuling Hu Gongke Li

A novel sulfamethazine molecularly imprinted polymer (MIP)-coated stir bar for sorptive extraction of eight sulfa drugs from biological samples was prepared. The MIP-coating was about 20 μm thickness with the relative standard deviation (RSD) of 6.7% (n=10). It was characterized by scanning electron microscope, infrared spectrum, thermogravimetric analysis, and solvent-resistant investigation, ...

2015
Swei-Pi Wu Chien-Hsin Yang Chia-Hui Lin

This study evaluates how different culinary spatula (turning shovel) designs affect cooking performance during stir-frying. A straight-handled spatula (0°) and three bent-handled spatulas (15°, 30° and 45°) were evaluated across two handle length levels (25 cm and 30 cm). The criterion measures included food-frying efficiency, work posture and subjective rating of perceived discomfort. In a lab...

Ahmad Reza Sabet Hamid Montazerolghaem,

Recently friction stir welding for manufacturing of welded tubes has been developed. Friction stir welding is a continuous solid state welding process in which a non-consumable rotating tool using severe plastic deformation Can join materials can be join materials. Commonly, a portion of a specially shaped rotating tool is plunged between metalsjoint cross section and adjacent faces of the join...

Ahl Sarmadi , M., Atapour, M., Behjat, A., Shamanian, M.,

High-strength low alloy steels are a class of steels used in applications that require high strength and good weldability, including ship hulls, gas pipelines and oil industry. One way to build parts is fusion welding that create areas with a large grain size in the heat-affected zone and increased susceptibility to hydrogen cracking. One way to solve this problem is to use solid state friction...

Deilami Azodi , H. , Safari, M. ,

In this paper, the experimental investigation of formability of friction stir welded ultra-thin sheets of IF steel is investigated experimentally. First, the sheets are joined by friction stir welding process based on the tests determined according to the Taguchi design of experiments. The investigated parameters in the welding process are as tool rotational and traverse speeds. Then, the tailo...

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