نتایج جستجو برای: good 70
تعداد نتایج: 599470 فیلتر نتایج به سال:
goal: the goal of this research is to evaluate iranian state university websites using wai . method: this study is descriptive and delphi survey. the research sample consists of 100 iranian state university websites. data collection was used by checklists that prepared in the wai. results: assessing of the iranian state university websites according to five main criteria (accessibility, speed, ...
فرض کنیم i یک ایده ال سره منظم در حلقه نوتری r باشد. ثابت میکنیم که حلقه ای چون a، که توسیعی صحیح آزاد و ساده از حلقه r بوده، وجود دارد به طوری که ایده ال ia دارای یک پایه rees-good است و آن عبارت است از پایه c1,…cg بطوری که برای تمام حلقه های ارزیابی ریس w ازia، ciw =iw. علاوه بر آن ممکن است aساخته شود به طوری که: 1- iaو i دارای اعداد ریس یکسان باشند .( با احتمال اینکه رتبه های متفاوت داشته ...
Purely hydrodynamic numerical experiments into the evolution of astrophysical discs typically include some sort of viscosity in order to cause accretion. In this paper, we demonstrate an alternative method of implementing viscous forces, with extremely good angular momentum conservation properties. The method is based on altering the cell fluxes, rather than incorporating a viscous force. We te...
Is it possible to achieve non-repudiation during electronic contractsigning? How can this be achieved in an e-mail based environment? These are the questions we will try to answer. The process of getting these answers will involve a short introduction to some of the available contract-signing standards and an analysis of how well the given standard would work in a e-mail environment. Additional...
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