نتایج جستجو برای: قوس 90
تعداد نتایج: 214149 فیلتر نتایج به سال:
This paper describes improvements to the rule chaining architecture presented in [1]. The architecture uses distributed associative memories to allow the system to utilise memory efficiently, and superimposed distributed representations in order to reduce the time complexity of a tree search to O(d), where d is the depth of the tree. This new work reduces the memory required by the architecture...
Activity rules have emerged in recent years as an important aspect of practical auction design. The role of an activity rule in an iterative auction is to suppress strategic behavior by bidders and promote simple, continual, meaningful bidding and thus, price discovery. These rules find application in the design of iterative combinatorial auctions for real world scenarios, for example in spectr...
In this paper we have used one 2 variable Boolean function called Rule 6 to define another beautiful transformation named as Extended Rule-6. Using this function we have explored the algebraic beauties and its application to an efficient Round Robin Tournament (RRT) routine for 2 (k is any natural number) number of teams. At the end, we have thrown some light towards any number of teams of the ...
Yttrium-90 has been described as one of the best radionuclides for tumor therapy when chelated to tumor-associated antibodies. This evaluation is based on the superior properties of this radionuclide (suitable half-life, pure beta-ray emitter of intermediate energy, stable daughter, and suitable chemical properties) and because it is available as a radionuclide generator product by decay of its...
کوره های قوس الکتریکی یکی از بزرگترین بارهای متمرکز درشبکه قدرت و از مهمترین منابع تولید هارمونیک، فلیکر ولتاژ و نامتعادلی به شمار می روند. در این مقاله، براساس نظریه آشوب، در ابتدا یک مدل توصیف کننده رفتار کوره قوس الکتریکی AC از لحاظ پارامترهای کیفیت توان ارائه می گردد. در این راستا حالت استاتیک قوس الکتریکی با استفاده از یک تابع هذلولی- نمایی مدل گردیده و نوسانات موجود در آن بوسیله یک مدل آش...
www.thelancet.com Vol 390 July 22, 2017 341 More than three decades into the global HIV pandemic, there are still 2·1 million new infections each year and 36·7 million people are living with HIV. By mid2016, 18·2 million people were on antiretroviral treatment—about 50% of people living with HIV. Yet in 2015, 15 million people living with HIV were estimated to be unaware of their status and 1·1...
Objectives: The goals of this investigation are to determine whether commercially available dose calibrators can be used to measure the activity of -emitting radionuclides used in pain palliation and to establish whether manufacturer-supplied calibration factors are appropriate for this purpose. Methods: Six types of commercially available dose calibrators were studied. Dose calibrator response...
UNLABELLED This investigation examined the accuracy of dose calibrator activity measurement of the beta-emitting radiopharmaceutical (90)Y-ibritumomab tiuxetan. METHODS Five different facilities independently measured (90)Y in a 10-mL syringe geometry with 30 dose calibrator models from 3 different manufacturers. The activities ranged from 81.4 MBq (2.2 mCi) to 1,406 MBq (38 mCi) over the vol...
مقدمه: افزایش زاویه انحنای ستون مهره ها در ناحیه کم ر، زمینه ساز بسیاری از ناراحتی های اسکلتی- عضلانی است. از این رو انداز هگیری آسان، سریع و دقیق زاویه قوس کمر نقش مهمی در پیشگیری از این ناراحتی ها خواهد داشت. هدف مطالعه حاضر تعیین معاینه های بالینی، آسان سازی اندازه گیری انحنای قوس کمر و جلوگیری از تابش غیر ضروری اشعه به بدن افراد و طراحی و ساخت دستگاه قوس کمر می باشد. دستگاه طراحی شده در این...
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