نتایج جستجو برای: virtual system
تعداد نتایج: 2334270 فیلتر نتایج به سال:
This paper presents some analyses about the robust practical stability of a class of nonlinear affine systems in the presence of non-vanishing perturbations based on the passivity concept. The given analyses confirm the robust passivity property of the perturbed nonlinear systems in a certain region. Moreover, robust control laws are designed to guarantee the practical stability of the perturbe...
Information technology is one of the largest and most important human achievements in the present era whose influence on most human activities is undeniable. The traditional education system is being affected by the information technology and it is now turning into an electronic education system. One of the newest issues in the field of electronic education is the effects of web page a...
Purpose: The present study was carried out aiming to identify the challenges and opportunities of virtual teaching during the Coronavirus pandemic from the perspective of teachers. Methodology: The present study was applied in terms of its purpose and qualitative in terms of its implementation. The statistical population includes middle school and high school teachers in the city of Dehloran d...
چکیده : نظام انتخاباتی قواعد و چار چوب های به رسمیت شناخته شده ای است که بیانگر چگونگی تبدیل آرای مردم به مناصب و پست های سیاسی است. این نظام انتخابات باید به گونه ای عمل کند که نتیجه آن فراهم شدن مکانیسم و ساز و کار مطلوب و مناسب برای برگزاری انتخابات سالم و رقابتی باشد. به نظر می رسد نظام انتخاباتی جمهوری اسلامی ایران دارای ضعف ها و نواقصی است که به سبب آن ها نمی توان انتخابات مطلوب را برگزا...
in recent years, virtual communities have been significantly popular and almost all of them are targeted for business profitability. in our study, the profitability of these communities for businesses has been analyzed from a commercial perspective. the study considers virtual community as a business model which can have a great impact on consumer purchase decision process. with respect to refe...
In recent years, with the expansion of virtual education, the most important challenge that educational systems face is Assessment in e-learning, which, not only have threats, but also opportunities for this system and society. In this letter to the editor, an attempt has been made to mention some of these opportunities in the three areas of teachers, learners and educational content.
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