نتایج جستجو برای: تکنیک passive step back
تعداد نتایج: 508059 فیلتر نتایج به سال:
We argue that the giant graviton configurations known from the literature have a complementary, microscopical description in terms of multiple gravitational waves undergoing a dielectric (or magnetic moment) effect. We present a non-Abelian effective action for these gravitational waves with dielectric couplings and show that stable dielectric solutions exist. These solutions agree in the large...
Raman Spectra of a PMMA Microstructured Optical Fibre and Direct Measurement of Its Gain Coefficient
A polymethylmethacrylate (PMMA) microstructured polymer optical fiber (mPOF) is fabricated and characterized. Using the cut-back technique the fiber loss is measured which is higher than the step-index silica fibers. Through a novel experimental scheme, the backward Stokes spectrum of the fabricated mPOF is recorded over a range exceeding 3000 cm‑1 during the cut-back method and compared ...
هدف: این مطالعه با هدف بررسی تغییر زاویه فک تحتانی گونیال بدنبال جراحی عقب بردن (Set Back) مندیبل با تکنیک استئوتومی ساژیتال اسپیلیت (BSSRO) فک تحتانی انجام گرفت. فرضیه این بود که با Set Back مندیبل توسط تکنیک BSSRO صرفنظر از روش Fixation زاویه گونیال کاهش می یابد.مواد و روشها: در این مطالعه که به صورت نیمه تجربی (Quasi experimental) و prospective انجام شد، 30 بیمار شامل 11 مرد و 19 زن در رده س...
Work-related musculoskeletal disorders are a major concern in the construction industry. The back is most commonly affected body part, accounting for about 43% of cases. To reduce loading, exoskeletons has been introduced workplace. Back-support potential interventions to physical demands on back. Successful application exoskeleton will require an assessment user acceptance and comfort with dev...
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