نتایج جستجو برای: Monte Carlo Method

تعداد نتایج: 1666157  

Journal: :journal of lasers in medical sciences 0
maryam afsari golshan sharif university of technology, tehran, iran maryam ghasemi tarei sharif university of technology, tehran, iran ahmad amjadi sharif university of technology, tehran, iran

introduction : due to the importance of laser light penetration and propagation in biological tissues, many researchers have proposed several numerical methods such as monte carlo, finite element and green function methods. among them, the monte carlo method is an accurate method which can be applied for different tissues. however, because of its statistical nature, monte carlo simulation requi...

Journal: :iranian journal of management studies 2013
hamid shahbandarzadeh khodakaram salimifard reza moghdani

in this paper, the pricing of a european call option on the underlying asset is performed by using a monte carlo method, one of the powerful simulation methods, where the price development of the asset is simulated and value of the claim is computed in terms of an expected value. the proposed approach, applied in monte carlo simulation, is based on the black-scholes equation which generally def...

Journal: :iranian red crescent medical journal 0
sedigheh sina radiation research center, shiraz university, shiraz, ir iran reza faghihi radiation research center, shiraz university, shiraz, ir iran; department of nuclear engineering, shiraz university, shiraz, ir iran; radiation research center, shiraz university, shiraz, ir iran. tel: +98-7116473474, fax: +98-7116473474 ali soleimani meigooni department of nuclear engineering, shiraz university, shiraz, ir iran; comprehensive cancer center of nevada, las vegas, nevada, usa zahra siavashpour department of radiation medicine, shahid beheshti university, tehran, ir iran mohammad amin mosleh-shirazi center for research in medical physics and biomedical engineering, shiraz university of medical sciences, shiraz, ir iran; department of radiotherapy and oncology, shiraz university of medical sciences, shiraz, ir iran

conclusions according to the results, the old dosimetry formalisms, overestimate the dose especially towards the applicator’s tip. while the tg-43u1 based software perform the calculations more accurately. results for a typical arrangement of 10 active pellets in the applicator, the percentage difference between doses obtained by the new algorithm at 1cm distance from the tip of the applicator ...

Journal: :international journal of advanced biological and biomedical research 2013
mohammad mirzaei

large quantities of radiopharmaceuticals prescribed for treatment and diagnosis are excreted through kidney. therefore, radiation unwanted dose is created in kidney. as a result, exact calculation of prescribed radiopharmaceuticals amount is important. monte carlo method is used for simulation of radiation transport in body due to random nature of radiation. in this research, for the first time...

M. Aliakbar-Golkar, Y. Raisee-Gahrooyi,

This paper compares fault position and Monte Carlo methods as the most common methods in stochastic assessment of voltage sags. To compare their abilities, symmetrical and unsymmetrical faults with different probability distribution of fault positions along the lines are applied in a test system. The voltage sag magnitude in different nodes of test system is calculated. The problem with the...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
pejman ganjeh-anzabi vahid hadadi-asl mehd salami-kaljahi hossein roghani-mamaqani

in this work, based on experimental observations and exact theoretical predictions, the kinetic scheme of raft polymerization is extended to a wider range of reactions such as irreversible intermediate radical terminations and reversible transfer reactions. the reactions which have been labeled as kinetic scheme are the more probable existing reactions as the theoretical point of view. the deta...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده فنی 1390

تعیین مکان و اندازه بهینه منابع تولید پراکنده (dgs) در سیستم های توزیع برای کسب ماکزیمم منافع بالقوه با اهمیت می باشد. در این پایان نامه یک طراحی چند هدفه برای تعیین مکان و اندازه منابع dg در شبکه های توزیع موجود مبتنی بر روش ipso-monte carlo ارائه شده است. اهداف شامل مینیمم کردن تلفات اکتیو و راکتیو، بهبود پروفایل ولتاژ و بهبود قابلیت اطمینان سیستم های توزیع می باشد. تکنیک بکار رفته مبتنی بر ا...

Journal: :iranian journal of radiation research 0
a.a. mowlavi department of physics, tarbiat moallem university of sabzevar, p.o. box 397, sabzevar, iran a. binesh department of physics, payam nour university of fariman, fariman, iran h. moslehitabar department of physics, payam nour university of mashhad, mashhad, iran

background: palladium-103 (103pd) is a brachytherapy source for cancer treatment. the monte carlo codes are usually applied for dose distribution and effect of shieldings. monte carlo calculation of dose distribution in water phantom due to a med3633 103pd source is presented in this work. materials and methods: the dose distribution around the 103pd model med3633 located in the center of 30×30...

Hamid Shahbandarzadeh, Khodakaram Salimifard Reza Moghdani

In this paper, the pricing of a European call option on the underlying asset is performed by using a Monte Carlo method, one of the powerful simulation methods, where the price development of the asset is simulated and value of the claim is computed in terms of an expected value. The proposed approach, applied in Monte Carlo simulation, is based on the Black-Scholes equation which generally def...

Journal: :iranian journal of medical physics 0
taha eidi shahid beheshti university, faculty of nuclear engineering, radiation-medicine department, tehran, iran

introduction pterygium is a wing-shaped, vascular, fleshy growth that originates from the conjunctiva and can spread into the corneal limbus and beyond. beta irradiation after bare sclera surgery of primary pterygium is a simple, effective, and safe treatment, which reduces the risk of local recurrence. materials and methods dosimetric components of strontium-90 (90sr), phosphorous-32 (32p), an...

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