نتایج جستجو برای: time simulation

تعداد نتایج: 2311705  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1390

abstract: in the paper of black and scholes (1973) a closed form solution for the price of a european option is derived . as extension to the black and scholes model with constant volatility, option pricing model with time varying volatility have been suggested within the frame work of generalized autoregressive conditional heteroskedasticity (garch) . these processes can explain a number of em...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1389

the poor orientation of the restaurants toward the information technology has yet many unsolved issues in regards to the customers. one of these problems which lead the appeal list of later, and have a negative impact on the prestige of the restaurant is the case when the later does not respond on time to the customers’ needs, and which causes their dissatisfaction. this issue is really sensiti...

Journal: :iranian red crescent medical journal 0
afsoon aeenparast department of health services management, mother and child health research center, iranian institute for health sciences research, acecr, tehran, ir iran; clinical research center, milad hospital, tehran, ir iran; department of health services management, mother and child health research center, iranian institute for health sciences research p.o. box: 13145-1756, tehran, ir iran. tel: +98-2166480804, fax: +98-2166480805 seyed jamaleddin tabibi school of management science and medical information, tehran university of medical sciences and health services, tehran, ir iran kamran shahanaghi college of industrial engineering, iran university of science and technology, tehran, ir iran mir bahador aryanejhad college of industrial engineering, iran university of science and technology, tehran, ir iran

conclusions using the simulation as a decision making tool helps us to decide how we can reduce outpatient's waiting time. comparison of outputs of this scenario and the based- case scenario in simulation model shows that combining physician's work time changing with patient's admission time changing (scenario 9) would reduce patient waiting time about 73.09%. due to dynamic and complex nature ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعت آب و برق (شهید عباسپور) - دانشکده مهندسی برق و کامپیوتر 1392

abstract according to increase in electricity consumption in one hand and power systemsreliability importance in another , fault location detection techniqueshave beenrecentlytaken to consideration. an algorithm based on collected data from both transmission line endsproposed in this thesis. in order to reducecapacitance effects of transmission line, distributed parametersof transmission line...

Journal: :journal of industrial engineering, international 2010
d roy d khan

assembly line production is one of the widely used basic principles in production system. the problem of assembly line balancing deals with the distribution of activities among the workstations so that there will be maximum utilization of human resources and facilities without disturbing the work sequence. research works reported in the literature mainly deals with minimization of idle time i.e...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2016
akila rajamanickam krishnaswamy balu

a numerical model for simulating residence time distribution (rtd) of turbulent flows in helical static mixers is proposed and developed to improve the understanding of static mixers. the results of this model is presented in terms of different volumetric flow rate to illustrate the complicated flow patterns that drive the mixing process in helical static mixers. the computed results are also u...

Journal: :journal of optimization in industrial engineering 2011
parham azimi mohammad reza ghanbari

the dramatic increasing of sea-freight container transportations and the developing trend for using containers in the multimodal handling systems through the sea, rail, road and land in the present market cause some challenges to the general managers of container terminals such as increasing demand, competitive situation, new investments and expansion of new activities and the need to use new m...

Journal: :علوم و تکنولوژی پلیمر 0
محمدرضا عرفانیان سید محمد جوادی محمد مقیمان

the present work reports and discusses the results of a 3d simulation of the injection molding process of a rubber compound that includes the mold flling stage and  material curing, using the computer code is developed in “udf” part of the fluent 6.3 cae software. the data obtained from a rheometer (mdr 2000) is used to characterize the rubber material in order to fnd the cure model parameters ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

a one dimensional dynamic model for a riser reactor in a fluidized bed catalytic cracking unit (fccu) for gasoil feed has been developed in two distinct conditions, one for industrial fccu and another for fccu using various frequencies of microwave energy spaced at the height of the riser reactor (fccu-mw). in addition, in order to increase the accuracy of component and bulk diffusion, instanta...

Journal: :تحقیقات نظام سلامت 0
محمدمهدی سپهری دانشیار، گروه مهندسی صنایع، دانشکده فنی مهندسی، دانشگاه تربیت مدرس و مرکز تحقیقات مدیریت بیمارستانی، دانشگاه علوم پزشکی تهران، تهران، ایران یداله پدرام کارشناس ارشد، گروه مهندسی فن آوری اطلاعات، دانشکده فنی مهندسی، دانشگاه تربیت مدرس، تهران، ایران بابک تیمورپور استادیار، گروه مهندسی صنایع، دانشکده فنی مهندسی، دانشگاه تربیت مدرس، تهران، ایران محمد مطلبی استادیار، گروه بهداشت عمومی، دانشکده بهداشت، دانشگاه علوم پزشکی گناباد، کناباد، ایران

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background: urban living and transition of illnesses, today has led hygienic centers for dedicating services to serious challenge management of an outpatient center is very difficult. worse is that the patient advice and service time is much less than waiting time. many people to avoid long waiting go to private treatment ...

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