نتایج جستجو برای: Simulation

تعداد نتایج: 558996  

Journal: :journal of physical & theoretical chemistry 2009
m. monajjemi a. r. oliaey

the determination of gyration radius is a strong research for configuration of a macromolecule. italso reflects molecular compactness shape. in this work, to characterize the behavior of theprotein, we observe quantities such as the radius of gyration and the average energy. we studiedthe changes of these factors as a function of temperature for acetylcholine receptor protein in gasphase with n...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1391

reinsurance is widely recognized as an important instrument in the capital management of an insurance company as well as its risk management tool. this thesis is intended to determine premium rates for different types of reinsurance policies. also, given the fact that the reinsurance coverage of every company depends upon its reserves, so different types of reserves and the method of their calc...

Journal: :آب و خاک 0
محبوبه زارع زاده مهریزی امید بزرگ حداد

abstract one of the major factors on the amount of water resources is river flow which is so dependent to the hydrologic and meteorologic phenomena. simulation and forecasting of river flow makes the decision maker capable to effectively manage the water resources projects. so, simulation and forecasting models such as artificial neural networks (anns) are commonly used for simulation and predi...

Journal: :international journal of civil engineering 0
d.p. chen 2# west beijing raod, nanjing city, china c.w. miao 2# west beijing raod, nanjing city, china j.p. liu 2# west beijing raod, nanjing city, china m.s. tang 30# xinmofan road,nanjing city, china

this paper presents theoretical and numerical state-of-the-art information in the field of hygro-thermo-mechanical deformation simulation in structural concrete. the aspects discussed include coupled hygro-thermo-mechanical performance of porous materials including concrete, multi-scale simulation of concrete properties especially the volumetric and structural deformation performance, and the m...

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 سیستان و بلوچستان - دانشکده مهندسی برق و کامپیوتر 1391

this thesis is presented 10 ghz voltage controlled ring oscillator for high speed application. the voltage controlled ring oscillator was designed and fabricated in 0.13یm cmos technology. the oscillator is 7-stages ring oscillator with one inverter replaced by nand-gate for shutting down in the ring oscillator during idle mode. tri-state inverter was used to control of 126 bit vector in ri...

Journal: :international journal of civil engineering 0
n. adamko university of zilina v. klima university of zilina p. marton university of zilina

railway service terminals are the places of a railway network usually equipped with costly technology based on highly complicated technological procedures demanding a high degree of coordination and control skills. design of these systems and the organization of their operation should facilitate reaching to the required capacity together with high quality of service processes as well as minimal...

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 ...

Journal: :future of medical education journal 0
naina kumar department of obstetrics and gynecology, maharishi markandeshwar institute of medical sciences and research, mullana-133207 ambala, haryana, india namit kant singh department of otorhinolaryngology, maharishi markandeshwar institute of medical sciences and research, mullana-133207 ambala, haryana, india samar rudra department of obstetrics and gynecology, maharishi markandeshwar institute of medical sciences and research, mullana-133207 ambala, haryana, india

background: simulation teaching means recreating clinical scenario for training / evaluation. aim: to expose postgraduates to simulation / didactic lecture for postpartum hemorrhage (pph) management; to assess which method was more effective. methods: present prospective study was conducted in obstetrics gynecology department of rural tertiary center of northern india.  twenty postgraduates wer...

Journal: :journal of mining and environment 2012
akbar farzanegan bahareh arabzadeh vahid hasanzadeh

discrete element method (dem) is extensively used for mathematical modeling and simulating the behavior of discrete discs and discrete spheres in two and three dimensional space, respectively. prediction of particles flow regime, power draw and kinetic energy for a laboratory or an industrial mill is possible by dem simulation. in this article, a new approach was used to assess the main paramet...

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