نتایج جستجو برای: laser accessories
تعداد نتایج: 185022 فیلتر نتایج به سال:
In order to improve the precision of vision inspection system for micro accessory, edge detection technique of micro accessory was studied. Firstly, the imaging features of the micro accessory inspection system were analyzed. Fraunhofer diffraction happens, because the light wave is restricted by microscope. Secondly, optical characteristics of micro images were analyzed. The gray curve of the ...
This yearly report on new products introduced in the preceding year, since March 2022, covers sample preparation instrumentation, supplies, and accessories.
background: glass and quartz fiber posts are used in restoration of structurally compromised roots. accessory fiber posts are recently introduced to enhance the fiber post adaptation. this study evaluated the effectiveness of glass versus quartz accessory fiber posts. materials and methods: in this experimental study, 40 mandibular premolar roots with similar dimension (radius of 3.5 ± 0.2 mm a...
ازآنجاییکه تهیه آب سنگین با خلوص بالا نیاز به تکنولوژی پیشرفته و صرف هزینه زیاد دارد، انتخاب درصد خلوص این سیال از دیدگاه اقتصادی حائز اهمیت می باشد. بدین منظور آب سنگین با خلوص 5ˆ99 درصد که پایین ترین حدمناسب برای صنعت هسته ای (nuclear grade) می باشد، انتخاب گردیده است . پس از بررسی فیزیک شبکه های آب سنگین، محاسبات اولیه بهینه یابی گام شبکه و شعاع میله سوخت با بهره گیری از روابط تجربی و نوشتن ...
UNLABELLED Pattern recognition is a key tool that enables radiologists to evoke certain diagnoses based on a radiologic appearance. In Shakespeare's Hamlet, Polonius tells his son Laertes to dress well because "apparel oft proclaims the man"; this phrase is now expressed in modern parlance as "the clothes maketh the man". Similarly in radiology, appearances are everything, and in the case of ra...
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