نتایج جستجو برای: blade forging
تعداد نتایج: 14277 فیلتر نتایج به سال:
Labour economics is often taken by vivid discussions about the specificity of the labour market and the need to develop a different approach, away from the current standard microeconomics. What is often forgotten is that this was not always the case. Labour research in the interwar years was quite different from what we regard presently as labour economics, being much more broadly and loosely d...
در این پژوهش از طرح جدید یک تیغهی باریک خاکورز با زاویه تمایل جانبی 10 درجه به منظور امکانسنجی حذف باله از آن و مقایسه با تیغه شاهد استفاده شد. عوامل آزمایشی شامل تیغه (تیغه با زاویه تمایل جانبی 10 درجه، تیغه با زاویه تمایل جانبی 10 درجه با باله و تیغه شاهد)، عمق شخم در سه سطح 20،15 و 25 سانتیمتر و سرعت پیشروی در دو سطح 3 و 6 کیلومتر بر ساعتبودند. نیروی مقاومت کششی، مقاومت ویژه، سطح بهم خور...
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This paper describes new conditions on parameters selection that lead to an efficient algorithm for forging ElGamal digital signature. Our work is inspired by Bleichenbacher’s ideas.
Oxygen content in aluminium alloys Al-3Fe or Al-8Fe-lZr (wt%) maked from air atomized powders by a sinter-forging
conclusion high-resolution mr images of the wrist using 3d t2space, pd blade and t2 blade were superior to those using conventional sequences quantitatively. high-snr and cnr mr imaging with space and blade would be a promising method to diagnose wrist lesions. results snr of the cartilage, tfcc on 3d t2space and t1 fse was better than other sequences (p < 0.001). snr of the bone on pd blade wa...
The Axial compressor is an integrated part of a gas turbine. The central part of compressors is its blades. Blade aerodynamic has a significant effect on compressor performance. Because of the adverse pressure gradient in the compressor, any deviation in the blade profile has a significant influence on the flow field as well as the compressor performance. During the manufacturing and operation ...
As previously discussed, because of differences in anatomy, there are differences in techniques for intubating the trachea of infants and children compared with adults.[1–4,17–19,99,114,115] Because of the smaller dimensions of the pediatric airway there is increased risk of obstruction with trauma to the airway structures. A technique to be avoided is that in which the blade is advanced into t...
OBJECTIVES To prospectively compare the diagnostic performance of a non-Cartesian k-space sampling T2-weighted TSE BLADE sequence with a conventional T2-weighted TSE sequence in female pelvic organs. METHODS Forty-seven patients with sonographically indeterminate adnexal masses or uterine lesions underwent sagittal BLADE and conventional TSE at 1.5 T after glucagon administration. Two radiolo...
We created a model physical system to investigate the role of blade rigidity in setting forces and rates of mass exchange for a blade exposed to unsteady flow in a vortex street. Using a combination of experimental and theoretical investigations, we find that, broadly, both the forces and the mass exchange are higher for more flexible blades. Below a critical value of the dimensionless blade ri...
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