نتایج جستجو برای: digital voltmeter
تعداد نتایج: 307948 فیلتر نتایج به سال:
conclusions in this study radiology students believed digital radiology can enhance the production efficiency and quality of the images. they also had the right information about digital radiology. however, it is recommended in order to prevent the emergence of problems caused by change of radiology equipment and efficiency of the professional in-service training the theoretical training needs ...
زمینه و هدف: یکی از روش های مشاهده واضح تر تغییرات جزیی استخوانی استفاده از تکنیک digital subtraction radiography (dsr) می باشد. باوجود تحقیقات بسیار در زمینه کاربرد dsr در دندانپزشکی مطالعات زیادی درباره استفاده از این روش برای بررسی تغییرات استخوانی سرکندیل مفصل گیجگاهی فکی انجام نشده است. هدف از این مطالعه مقایسه رادیوگرافی پانورامیک و رادیوگرافی panoramic digital subtraction در تشخیص ضایعات...
Introduction: Spite of many studies conducted on digital libraries, there are a few studies on the evaluation of this type of library. The present study was an attempt to determine similarities and differences between Tehran University of Medical Sciences Digital Library against the Structural Standards of an academic digital library. Methods: This was an observational study in which the dat...
Purpose: This study performed with goals of determining the Items in designing and developing the user interface of digital libraries' websites and to determine the best digital libraries' websites and discuss their advantages and disadvantages; to analyze and compare digital libraries' websites in developing countries with those in the developed countries. Methodology: to do so, 50 digital lib...
By expanding application of digital content in the world of information technology, supervision and control over the data, and also preventing the copy of documents is considered. In this relation digital rights management systems are responsible for the secure distribution of digital content, and for this purpose the common functions in the field of cryptography and utilize Digital watermarkin...
Background & Aims: Teleradiology as an efficient way for avoiding unnecessary transfer of patients to special medical centers requires the images with digital format. However, in some developing countries, including Iran, imaging is being done using non digital devices. In such cases, changing analog images into digital ones can solve the problem. The method which is nowadays used for digita...
Background and Purpose: Due to the important role of imaging in the diagnosis and treatment plan in orthodontics, CBCT (Cone Beam Computed Tomography) images because of their three-dimensional nature, can minimize the disadvantages of two-dimensional images such as magnification, distortion, or superimposition. The purpose of this study was to evaluate the accuracy of conventional cephalograms...
چکیده: در میان انواع متفاوتی از مبدل های آنالوگ به دیجیتال که تا کنون معرفی شده اند، مبدل های آنالوگ به دیجیتال تقاریب متوالی(sar ) به علت سادگی ساختار و همچنین توان مصرفی کم، همواره یکی از پرکاربرد ترین مبدل های آنالوگ به دیحیتال در کاربرد های بایومدیکال بوده اند. به همین دلیل تاکنون روش های متعددی برای کاهش هرچه بیشتر توان مصرفی در این مبدل ها ارائه شده است که در اکثر آنها توجهی به مشخصات سی...
A simple method is proposed to calibrate the energy of an electron beam. An electrical floating metal foil irradiated by incident electrons. The deduced from magnitude surface potential developed on conductor surface. measurement made outside vacuum chamber a metallic slab connected through coaxial feedthrough sample. calibration obtained this compared conventional based measuring position back...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید