نتایج جستجو برای: monte carlo analysis

تعداد نتایج: 2876784  

2008
ALIN V. ROŞCA

In this paper, we apply a mixed Monte Carlo and Quasi-Monte Carlo method, which we proposed in a previous paper, to problems from mathematical finance. We estimate the value of an European Call option and of an Asian option using our mixed method, under different horizont times. We assume that the stock price of the underlaying asset S = S(t) is driven by a Lévy process L(t). We compare our est...

1998
Hozumi Morohosi Masanori Fushimi

There have been few studies on practical error estimation methods of quasi-Monte Carlo integrations. Recently, some theoretical works were developed by Owen to analyze the quasi-Monte Carlo integration error. However his method given by those works is complicated to be implemented and needs huge computational e orts, so it would be of some interest to investigate into a simple error estimation ...

2005
Christian P. Fries

In this paper we investigate the so called foresight bias that may appear in the Monte-Carlo pricing of Bermudan and compound options if the exercise criteria is calculated by the same Monte-Carlo simulation as the exercise values. The standard approach to remove the foresight bias is to use two independent Monte-Carlo simulations: One simulation is used to estimate the exercise criteria (as a ...

2001
Dingding Li Thanasis Stengos

In a partially linear regression model with a high dimensional unknown component we find an estimator of the parameter of the linear part based on projection pursuit methods to be considerably more efficient than the standard density weighted kernel estimator.

Journal: :journal of medical signals and sensors 0
maryam atarod parvaneh shokrani

background: because of the adverse effects of ionizing radiation on fetuses, prior to radiotherapy of pregnant patients, fetal dose should be estimated. fetal dose has been studied by several authors in different depths in phantoms with various abdomen thicknesses (at). in this study, the effect of maternal at and depth in fetal dosimetry was investigated, using peripheral dose (pd) distributio...

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...

Journal: :journal of physical & theoretical chemistry 2010
k. shahanipour t. nejad satari

the interaction between the solute and the solsent molecules play a crucial role in understanding the various molecular processes involved in chemistry and biochemistry, so in this work the potential energy of active site of azurin have been calculated in solvent by the monte carlo simulation. in this paper we present quantitative results of monte carlo calculations of potential energies of ...

2008
J Casulleras J Boronat

The application of the diffusion Monte Carlo method to a strongly interacting Fermi system as normal liquid 3 He is explored. We show that the fixed-node method together with the released-node technique and a systematic method to analytically improve the nodal surface constitute an efficient strategy to improve the calculation up to a desired accuracy. This methodology shows un-ambiguously that...

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

روش آنالیز عنصری در داخل بدن به کمک روش xrf یکی از روش های آنالیز عنصری بدون تخریب می باشد که در خلال 40 سال گذشته بطور چشمگیری توسعه یافته و پیشرفت کرده است . این روش اندازه گیری با حساسیت کافی و مخاطره انگیزی کم خویش ، مخصوصاًدر رابطه با نظارت و مراقبت از گارگرانی که به دلیل شغلی در معرض آلودگی قرار دارند، اهمیت بسزای پیدا کرده است . علاوه بر آن استعداد این روش برای ردیابی و اندازه گیری داروی ...

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