نتایج جستجو برای: آیرو 5415
تعداد نتایج: 99 فیلتر نتایج به سال:
در طول دوره کاری بخش کمپرسور توربین های گازی، پره¬های کمپرسور دچار ساییدگی و خوردگی شدید ناشی از ماسه، نمک، اسیدها و گرد و غبارهای موجود در جریان هوا می شوند، که در نتیجه آن سطح پره دچار سایش و خوردگی حفره ای می شود. این عوامل به نوبه خود موجب کاهش خصوصیات خستگی و آیرو دینامیکی پره می شود. برای حل این مشکل از پوشش های مقاوم به خوردگی و سایش بر روی پره ها استفاده می شود که مجموعه ای از خواص کارک...
نیاز روز افزون به انرژی الکتریکی و بحث آلودگی محیط زیست ونیز هزینه بالای استفاده از سوختهای فسیلی توجه بیشتر کشورها را بیش از پیش به استفاده از انرژی های نو معطوف نموده است .انرژی باد ارزان ترین، پاک ترین ومناسب ترین شکل انرژی های نو می باشد.در کشور ایران نیز در سالهای اخیر توجه زیادی به استفاده از این نوع انرژی برای تولید برق شده است. به همین منظور در این پایان نامه ضمن معرفی اهم انرژی های نو ...
A silencing vector for cotton (Gossypium hirsutum) was developed from the geminivirus Cotton leaf crumple virus (CLCrV). The CLCrV coat protein gene was replaced by up to 500 bp of DNA homologous to one of two endogenous genes, the magnesium chelatase subunit I gene (ChlI) or the phytoene desaturase gene (PDS). Cotyledons of cotton cultivar 'Deltapine 5415' bombarded with the modified viral vec...
PURPOSE We evaluated the influence of RAS mutation status on the treatment effect of panitumumab in a prospective-retrospective analysis of a randomized, multicenter phase III study of panitumumab plus fluorouracil, leucovorin, and irinotecan (FOLFIRI) versus FOLFIRI alone as second-line therapy in patients with metastatic colorectal cancer (mCRC; ClinicalTrials.gov, NCT0039183). EXPERIMENTAL...
Phase-averaged organized oscillation velocities (U,V,W) and random fluctuation Reynolds stresses ( uw , uv , ww , vv , uu ) are presented for the nominal wake of a surface ship advancing in regular head (incident) waves, but restrained from body motions, i.e., the forward-speed diffraction problem. A 3 × 3 × 100 m towing tank, plunger wave maker, and towed, 2D particle-image velocimetry (PIV) a...
Hydrodynamic flow visualization techniques of scaled hull forms and propellers are typically limited to isolating certain operating conditions in a tow tank, circulation tunnel, or large maneuvering basin. Although cost effective, these tests provide a limited perspective on the interactions of the entire system. Full-scale testing, other the other hand, provides real world data but is costly. ...
There has not been a clear answer about the efficacy of intraoperative radiotherapy (IORT) for women with early-stage breast cancer.The aim of this meta-analysis was to summarize the available evidence comparing the efficacy and safety of IORT with those of whole-breast external beam radiotherapy (EBRT) for women with early-stage breast cancer.MEDLINE, EMBASE, the Web of Science, and the Cochra...
BACKGROUND Our objective was to identify factors that are independently associated with early attrition and successful weight loss (WL) in an obesity-management program. METHODS Participants were 9,498 patients enrolled in treatment at the Wharton Weight Management Clinic for at least 6 months. Predictors of early attrition (<6 months) and successful WL (≥5 %) were analyzed using relative ris...
A silencing vector for cotton (Gossypium hirsutum) was developed from the geminivirus Cotton leaf crumple virus (CLCrV). The CLCrV coat protein gene was replaced by up to 500 bp of DNA homologous to one of two endogenous genes, the magnesium chelatase subunit I gene (ChlI) or the phytoene desaturase gene (PDS). Cotyledons of cotton cultivar ‘Deltapine 5415’ bombarded with the modified viral vec...
Introduction: The Northwest Africa (NWA) 5415 meteorite is unusual among HED meteorites for its clear manifestation of origin by pervasive, large-scale impact melting. A thin section from a relatively unweathered portion includes five relict olivines, all of which display similar reaction textures (pyroxene coronas) formed as a consequence of immersion of these grains in a melt on the Si-rich s...
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