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مسائل بهینه سازی امروزه بخش مهمی از مسائل مهندسی را شامل می شوند. در اینگونه مسائل هدف پیدا کردن مقادیر بهینه یک تابع هدف وابسته به ضرایب شکلی و متغیرها و پارامترهای فیزیکی و هندسی مسئله می باشد. روش های متعددی جهت مسائل بهینه سازی مطرح شده است. از آنجایی که معمولا کلیه این روش ها مستلزم حل مستقیم و سعی و خطا جهت یافتن پارامترهای بهینه مسئله می باشد، تدوین رویه ای که عملیات تحلیل را کاهش دهد می...
در این پایان نامه مباحثی در مورد نیم گروه های معکوس توپولوژیکی اولیه (مطلقا) h-بسته و فشرده (شمارایی) بدست می آوریم و ساختار نیم گروه های معکوس توپولوژی فشرده شمارایی و نیم گروه های معکوس توپولوژی همنهشت-آزاد را توصیف می کنیم و نشان می دهیم که نیم گروه دو دوری نمی تواند در نیم گروه معکوس توپولوژی فشرده شمارایی نشانده شود. we present some discussions about compact (countably) and (absolutely) h...
Several important issues are pertinent to an ethical discussion of the new technology today grouped under the name Assisted Reproduction Technology (ART). This is a moral imperative because each of us must decide what is to be considered ethically acceptable in assisted reproduction. Reflecting on the ethical dimension of ‘creating’ a new human life can play a major role in ensuring that in eac...
Several image mosaicing algorithms claiming to advance the state of the art have been proposed so far. Though sometimes improvements can be recognised without quantitative evidences, the importance of a principled methodology to compare different algorithms is essential as this discipline evolves. Which is the best? What means the best? How to ascertain the supremacy? To answer such questions, ...
The present study investigated the significance of mobile learning (m-learning) of English vocabulary items through a traditional contrasted with a blended method of content representation. To achieve the goals, sixty semi-illiterate adults were evaluated for their knowledge of the English alphabet and then randomly placed in two groups: traditional (G1) and the blended group (G2). Next, they w...
This section concerns organizations in which decisions are made by a single round or by successive rounds of majority voting. In a case that is of particular interest with respect to organizations as well as to political competition, one member is a “leader,” who has the exclusive right to propose alternatives to the status quo. It turns out that, in the long run, this right can make the leader...
The art of cryptography is considered to be born along with the art of writing. As civilizations evolved, human beings got organized in tribes, groups, and kingdoms. This led to the emergence of ideas such as power, battles, supremacy, and politics. These ideas further fueled the natural need of people to communicate secretly with selective recipient which in turn ensured the continuous evoluti...
The present information paper illustrates the close link between disaster and disability and the importance of incorporating disability perspectives in all phases of disaster risk reduction. The paper outlines the challenges persons with disabilities face in the wake of disasters and describes the benefits to all members of society using a disability-inclusive disaster risk reduction approach. ...
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