نتایج جستجو برای: points of maximum dose

تعداد نتایج: 21201881  

Introduction: Craniospinal radiotherapy is a therapeutic technique for central nervous system (CNS) tumors, which requires meticulous attention to technique and dosimetry.Treatment planning system (TPS) is one of the main equipment in radiotherapy; therefore, the evaluation of its accuracy is essential for dose calculation. The present study evaluates the validity of Isogray TPS in craniospinal...

Journal: :British Journal of Clinical Pharmacology 2019

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم انسانی 1390

abstract al- muntazam by ibn al -jawzi is one of the greatest the book ancient book of texts on history of islam in the 6th century.it is very important one;because of including rare reports which are not found any where.in addition to historical reports,his outlook , in which embodies information on mythologies, milal wa nihal (sects and creeds), geography, and political, social and religiou...

A. Mosalaei, M. Ansari, M.A. Mosleh-Shirazi, N. Ahmadloo, S. Karbasi, S. Norouzi, S.M.J. Mortazavi,

Background: In intracavitary brachytherapy for gynecological cancers, various techniques are used to locate the anterior rectal wall nearest to the sources but there is no consensus on the best method to do so. This study aimed to compare a technique used routinely in some centers that employs a wire marker to locate the position of the maximum rectal dose point, versus the method recommended b...

Journal: :iranian journal of radiation research 0
m.a. mosleh-shirazi department of radiotherapy and oncology, shiraz university of medical sciences, shiraz, iran s. norouzi department of radiotherapy and oncology, shiraz university of medical sciences, shiraz, iran m. ansari department of radiotherapy and oncology, shiraz university of medical sciences, shiraz, iran n. ahmadloo department of radiotherapy and oncology, shiraz university of medical sciences, shiraz, iran s.m.j. mortazavi the center for research on protection against ionizing and non-ionizing radiation, shiraz university of medical sciences, shiraz, iran s. karbasi department of radiotherapy and oncology, shiraz university of medical sciences, shiraz, iran

background: in intracavitary brachytherapy for gynecological cancers, various techniques are used to locate the anterior rectal wall nearest to the sources but there is no consensus on the best method to do so. this study aimed to compare a technique used routinely in some centers that employs a wire marker to locate the position of the maximum rectal dose point, versus the method recommended b...

Journal: :Rocky Mountain Journal of Mathematics 1985

Journal: :Algorithmica 2021

Abstract Given a finite set of weighted points in $${\mathbb {R}}^d$$ R d (where there can be negative weights), the maximum box problem asks for an axis-aligned rectangle (i.e., box) such that sum weights it contains is maximized. We consider eac...

ژورنال: سنجش و ایمنی پرتو 2020

One of the main factors for satellite design is simulating of total ionizing dose due to space ionizing rays in devices used in space. By measurement of induced dose based on available data in different altitudes, expenses of designing, satellite weight and amount of needed fuel will be reduced. Optimum design of satellite for protecting satellite against ionizing radiation has considerable eff...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده زبانهای خارجی 1393

feminine voice and narratology in wuthering heights wuthering heights as a general "bronte" work has extraordinary dimensions to it which can make it focal to different ways of interpretation. among other differences the issue of narrative voice is essential in understanding the ultimate purpose of wuthering heights. emily bronte uses different narrators from various focal points speaking of m...

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