نتایج جستجو برای: شبیه سازیmonte carlo
تعداد نتایج: 100460 فیلتر نتایج به سال:
deregulation policy has caused some changes in the concepts of power systems reliability assessment and enhancement. in this paper, generation reliability is considered, and a method for its assessment using intelligent systems is proposed. also, because of power market and generators’ forced outages stochastic behavior, monte carlo simulation is used for reliability evaluation. generation reli...
wind power generation is variable and uncertain. in the power systems with high penetration of wind power, determination of equivalent operating reserve is the main concern of systems operator. in this paper, a model is proposed to determine operating reserves in simultaneous market clearing of energy and reserve by stochastic programming based on scenarios generated via monte carlo simulation ...
background: monte carlo (mc) modeling of a linear accelerator is a prerequisite for monte carlo dose calculations in external beam radiotherapy. in this study, a simple and efficient model was developed for elekta sl-25 linear accelerator using mcnp4c monte carlo code materials and methods: the head of elekta sl-25 linac was simulated for 6 and 18 mv photon beams using mcnp4c mc code. energy sp...
Background: The aim of this study was to develop and implement a Monte Carlo framework for evaluation of patient specific out-of-field organ equivalent dose (OED). Materials and Methods: Dose calculations were performed using a Monte Carlo-based model of Oncor linac and tomographic phantoms. Monte Carlo simulations were performed using EGSnrc user codes. Dose measurements were performed using r...
The increasing penetration of renewable energy results in changing the traditional power system planning and operation tools. As the generated power by the renewable energy resources are probabilistically changed, the certain power system analysis tolls cannot be applied in this case. Probabilistic optimal power flow is one of the most useful tools regarding the power system analysis in presen...
در این پایان نامه، تغییر پذیری در پروسه های های یک فرآیند دیجیتال در سطوح مختلف و از سطح افزاره تا سطح سیستم محاسبه شده و رابطه موجود بین مقدار خطا، فراوانی هر خطا در فرکانس های مشخصی محاسبه و ارائه شده است. با ارزیابی و شبیه ساز های اولیه، دو کتابخانه شامل اثرات تغییر پذیری بر تاخیر گیت های پایه و اثرات تغییر پذیری بر سلولهای پنج نوع جمع گرهای دو بیتی tfa، 14t، cpl و hybride ارائه گردیده است....
we compare two approaches for a markovian model in flexible manufacturing systems (fmss) using monte carlo simulation. the model which is a development of fazlollahtabar and saidi-mehrabad (2013), considers two features of automated flexible manufacturing systems equipped with automated guided vehicle (agv) namely, the reliability of machines and the reliability of agvs in a multiple agv jobsho...
چکیده: در این تحقیق، یک راه حل بهینه برای برنامه ریزی روز-پیش (Day-ahed) مسأله امنیت-مقید مشارکت واحدها یا همان SCUC (Security Constrained Unit Commitment)در سیستم قدرت فراهم شده است. چنین برنامه ریزی، در واقع درگیر فراهم کردن یک هماهنگی بین واحد های تولیدی در پاسخ به تغییرات شرایط بارگزاری است تا بتواند هزینه های کلی سیستم قدرت را کاهش دهد. برای حل مسأله، از یک روش کاربردی و دقیق با عنوان بهین...
We study optimal stochastic (or Monte Carlo) quadrature formulas for convex functions. While nonadaptive Monte Carlo methods are not better than deterministic methods we prove that adaptive Monte Carlo methods are much better. Abstract. We study optimal stochastic (or Monte Carlo) quadrature formulas for convex functions. While nonadaptive Monte Carlo methods are not better than deter-ministic ...
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