the application of e-learning systems - as one of the solutions to the issue of anywhere and anytime learning – is increasingly spreading in the area of education. content management - one of the most important parts of any e-learning system- is in the concern of tutors and teachers through which they can obtain means and paths to achieve the goals of the course and learning objectives. e-learn...

This paper has been devoted to the design of a distributed consensus control for a class of uncertain nonlinear multi-agent systems in the strict-feedback form. The communication between the agents has been described by a directed graph. Radial-basis function neural networks have been used for the approximation of the uncertain and heterogeneous dynamics of the followers as well as the effect o...

مسئله رخداد خطا و طرز برخورد با آن، همواره به عنوان یکی از مسائل مهم و قابل توجه در طراحی سیستم ها مطرح بوده است. هرچه ابعاد سیستم ها بیشتر می شود، آثار ناشی از رخداد خطا و خرابی افزایش می یابد. بنابراین این مسئله در سیستم های با ابعاد وسیع اهمیت بسیار زیادی دارد. در این سیستم ها، به دلیل مشکلات ناشی از مدلسازی و وجود عدم قطعیت فراوان و افزایش انواع خطا، روش های مبتنی مدلسازی و کنترل مقاوم کارب...

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