نتایج جستجو برای: spinning disc
تعداد نتایج: 55061 فیلتر نتایج به سال:
The management of mineral fertilization using centrifugal spreaders requires the development of spread pattern characterization devices to improve the quality of fertilizer spreading. In order to predict the spread pattern deposition using a ballistic flight model, several parameters need to be determined and especially the velocity of the granules when they leave the spinning disc. This paper ...
Dark Matter supposedly dominates the extragalactic, yet no totally dark structure of galactic proportions has ever been convincingly identified. Earlier (Minchin et al. 2005) we suggested that VIRGOHI 21, a 21-cm source we found in the Virgo Cluster at Jodrell Bank using single-dish observations (Davies et al. 2004), was probably such a dark galaxy because of its broad line-width (∼ 200 km s) u...
با توجه به پرزینگی نخ بر روی استحکام نخ، جذب نامنظم رنگ، زیردست و عایق حرارتی بودن پارچه ها، بوجود آمدن پرز در سطح پارچه و فرآیندهای بعد از ریسندگی و اینکه در اکثر موارد، پرزینگی نخ خصوصیتی منفی و مشکل ساز می باشد. بررسی این فاکتور برای کنترل آن، دارای اهمیت خاص می باشد. پارامترهای بسیاری در سیستم ریسندگی رینگ (سرعت دوک، جنس روکش علتک تولید و...) بر روی پرزینگی نخ موثر می باشند که دانستن چگونگی...
This article presents a design method of Longitudinal-Bending Coupled Horn (L-BCH) giant magnetostrictive transducer utilized in spinning ultrasonic machining. The structural parameters are initially determined by the theory horn and thick disc. Then, effect rotating wheel on vibration characteristics L-BCH explored model harmonic response analysis through finite element method. Through continu...
abstract background: far lateral discal herniation is an uncommon disorder and is difficult to assess by physical examination alone. this study is designed to define clinical and epidemiological findings and to establish the indications of surgical and medical treatment for flldh. methods: between 2000 and 2005, a total of 2035 patients with lumbar disc herniation underwent surgical discect...
conclusions in this study, we found that in spite of previous beliefs, discopathies were not common etiologies of lbp. thus, even in patients with proven ldh by imaging studies, the physician should perform a thorough evaluation for other causes of lbp to avoid unnecessary lumbar surgeries. results in our study, among 1250 patients with proven ldh by mri, 500 patients (40%) had chronic lbp and ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید