نتایج جستجو برای: discrete event system

تعداد نتایج: 2499712  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی صنایع 1386

در این مطالعه یک سیستم موجودی برای یک محصول با قابلیت استفاده در نظر گرفته می شود، با این فرض که بازگشت های احتمالی مستقیما به جریان تقاضا وابسته هستند. یک مدل موجودی بر اساس مدل پایه در ادبیات مساله توسعه داده شده و با توجه به تاثیر گذاری چرخه عمر محصول بر تقاضا، یک سیاست مرور دوره ای با پنج سقف موجودی متفاوت پیشنهاد می شود. با تولید 108 سناریوی مختلف و شبیه سازی دو مدل در شرایط برابر، سیستم پ...

Journal: :journal of advances in computer research 0
ali khalili school of computer engineering, iran university of science and technology, tehran, iran mohammad abdollahi azgomi school of computer engineering, iran university of science and technology, tehran, iran

in recent years, formal methods have been used as an important tool for performance evaluation and verification of a wide range of systems. in the view points of engineers and practitioners, however, there are still some major difficulties in using formal methods. in this paper, we introduce a new formal modeling language to fill the gaps between object-oriented programming languages (oopls) us...

Journal: :Information 2022

Discrete event modeling and simulation reinforcement learning are two frameworks suited for cyberphysical system design, which, when combined, can give powerful tools optimization or decision making process example. This paper describes how discrete could be integrated into concepts in order to assist the realization of systems, more specially considering temporal, hierarchical, multi-agent asp...

Abstract: The object of this research is development of memory assessment system, using Event Related Potentials. Our approach is using ERPs recorded on Fz, Cz and Pz electrodes. Subjects made old/new recognition judgments on new unstudied unmeaning pictures and old pictures which had been presented at study phase. Features related with memory activity in time-frequency domain were used to achi...

Journal: :مدیریت صنعتی 0
عادل آذر استاد دانشگاه تربیت مدرس، تهران، ایران سمانه سقالرزاده کارشناس ارشد مدیریت صنعتی، دانشگاه تربیت مدرس، تهران، ایران علی رجب‎زاده استادیار دانشگاه تربیت مدرس، تهران، ایران

this article proposes composition of fuzzy sets theory with discrete-event simulation and puts it into application in order to model uncertain activity duration in simulating a real-world system. the purpose of this paper is to assess the usefulness of fuzzy simulation for modeling uncertain activity duration, especially when insufficient or no sample data is available. in this research, fuzzy ...

Alireza Kabirian

Discrete-event simulation based optimization is the process of finding the optimum design of a stochastic system when the performance measure(s) could only be estimated via simulation. Randomness in simulation outputs often challenges the correct selection of the optimum. We propose an algorithm that merges Ranking and Selection procedures with a large class of random search methods for continu...

Journal: :iranian journal of fuzzy systems 2005
j. j. buckley k. d. reilly l. j. jowers

in previous studies we first concentrated on utilizing crisp simulationto produce discrete event fuzzy systems simulations. then we extendedthis research to the simulation of continuous fuzzy systems models. in this paperwe continue our study of continuous fuzzy systems using crisp continuoussimulation. consider a crisp continuous system whose evolution depends ondifferential equations. such a ...

Journal: :Simulation 2016
Ala'a Al-Habashna Gabriel A. Wainer

In this work, we provide an approach for Modeling and Simulation (M&S) of crowds using Cellular Discrete EVent System Specification (Cell-DEVS). We present many examples of Cellular Discrete EVent System Specification entitybased crowd models, and we show how to use Cellular Discrete EVent System Specification for entity-based modeling and simulation of crowds. We provide an approach for using ...

Journal: :مدیریت صنعتی 0
لیلا علی زاده دانشجوی کارشناسی ارشد مهندسی صنایع دانشکدة مهندسی صنایع، دانشگاه آزاد واحد جنوب، تهران، ایران. رسول نورالسناء استاد دانشکدة مهندسی صنایع، دانشگاه علم و صنعت، تهران، ایران. صدیق رئیسی دانشیار دانشکدة مهندسی صنایع، دانشگاه آزاد اسلامی، واحد جنوب، تهران، ایران.

since the analysis of complex services systems by using mathematical modeling techniques, with considering the random patterns prevailing in them, is so difficult or probably impossible, improvement guidelines are often followed based on the experts' experiences using qualitative methods. in the present paper, by employing a discrete event computer simulation methodology, criminal trial sy...

2012
Tarun Jain

This paper presents the application of discrete event system in the field of power system. In power system there are various components which required control and coordination when they are in operation. The theory of discrete event system has been applied in the application part of power system. The discrete nature of ULTC and discrete switching behavior of SVC are best suited for the supervis...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید