نتایج جستجو برای: and user
تعداد نتایج: 16841848 فیلتر نتایج به سال:
در این پایان نامه به بررسی روش های آشکارسازی در سیستم های mc-cdma می پردازیم. با توجه به ماهیت آشکارسازی در این سیستم ها، تکنیک های آشکارسازی را می توان به دو دسته ی اصلی تقسیم نمود: آشکارسازی سیگنال ارسالی یک کاربر مطلوب بدون در نظر گرفتن اطلاعاتی در مورد سایر کاربران تداخل کننده که از آن ها به عنوان آشکارساز های تک کاربره یاد می شود و همچنین آشکارسازی سیگنال ارسالی همه ی کاربران فعال موجود در...
a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...
the quest for power has formed much of the world history especially in 20th and 21st centuries. oil (energy) particularly after industrial revolution has been a tool for conquest and power and has been transformed to a geopolitical issue. from a geopolitical point of view this has been the case for the last two centuries in central asia and caucasus. central asia and caucasus has always been...
هدف ازاجرای این پروژه پیاده سازی واحد کنترل سیستم فرز emco cnc روی یک کامپیوتر at و اضافه کردن تسهیلات گرافیکی جهت سهولت کار user و داشتن اطلاعا کافی از شکل قطعه مطلوب و مسیر حرکت ابزار می باشد. دراین پروژه الگوریتم حرکت که متضمن حرکت محورها بر روی منحنی مورد نظر خواهد بود، الگوریتم dda که در پروژه طراحی و ساخت واحد کنترل ماشینهای cnc است بکار گرفته می شود و سعی می شود دقیقا بجای واحد کنترل این...
information systems (is) acquisition prescribes induction of information technologies (it) in the organization. at times, is is used for managing broader enterprise level issues like implementing e-business, e-commerce. enterprise level issues are addressed through adequate involvement of people in the organization which are termed as “user capabilities”. managing user capabilities is critical ...
purpose: scientific databases are the most important and useful sources where information is accessible via user interfaces. one of the approaches to eliminating the existing challenges in databases user interface is utilizing the sense-making theory (smt) approach. smt approach helps the users to understand problematic situations they have faced with and bridges the cognitive and information g...
abstract childhood is a critical era of life which has the ability to significantly improve the behavioral, educational and social aspects of individuals. identification of suitable environment of growing up along with a real insight into child's needs, help researchers and designers to gradually step towards improving the personal and behavioral characteristics of the next generation. see...
a study of graphic user interface of children’s and teenagers’ websites in iran z. salimi* s. ghaffari** islamic azad university, hamedan branch abstract the present study was conducted to investigate children’s and teenagers’ website graphic user interface (gui) level. its purpose is to help the iranian children and teenagers to select suitable websites and also help designers t...
Background and Aim: The present investigation intends to compare and review various user interfaces from user standpoint and to ascertain its linkage with user satisfaction. Method: The research incorporated a descriptive survey of University of Tehran graduate student body. Using a targeted sampling, graduate students from the faculties of chemistry and Biology were selected. The instruments u...
technology acceptance model is a widely accepted model for explaining user behavior in technology adaptation. the coping model of user adaptation defines user adaptation as the cognitive and behavioral efforts performed by users to cope with significant it events that occur in their work environment. this paper based on the combination of the mentioned models proposes a model for explicating fa...
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