نتایج جستجو برای: equivalent conversion

تعداد نتایج: 249351  

Journal: :iranian journal of medical physics 0
fatemeh lotfalizadeh department of ray-medical engineering, shiraz university, shiraz, iran mehrnoosh karimipourfard department of ray-medical engineering, shiraz university, shiraz, iran bentolhoda amanat department of physics, payame noor university, tehran, iran mehdi zehtabian department of ray-medical engineering, shiraz university, shiraz, iran

introduction based on task group no. 43 (tg-43u1) recommendations, water phantom is proposed as a reference phantom for the dosimetry of brachytherapy sources. the experimental determination of tg-43 parameters is usually performed in water-equivalent solid phantoms. the purpose of this study was to determine the conversion factors for equalizing solid phantoms to water. materials and methods t...

ژورنال: سنجش و ایمنی پرتو 2018

Several studies have been done with the aim of improving the quality of the radiation protection measurement in radiology and nuclear medicine. Among  different subjects which are capable to be considered in this area, the measurement of the operational quantities of protection against the radiation ,such as, personal dose equivalent ,HP(d), at different depths (d=0.07mm, 3mm, 10mm) is an impor...

2013
Yi-feng Zhu Zheng Zheng

In high power converter design, low-inductance busbar connecting DC capacitors and power devices is the main concern to improve the quality of the whole power electronics system. This paper analyzes the impact of layernumber on the stray inductance of busbar taking a subway traction converter as example. The method of partial element equivalent circuit and the Q3D software are used to extract t...

Journal: :Etri Journal 2023

Abstract Equivalent‐time sampling can improve measurement or sensing systems because it enables a broader frequency band and higher delay resolution for periodic signals with lower rates than Nyquist receiver. Meanwhile, digital down‐conversion (DDC) technique be implemented using straightforward radio (RF) circuit. It avoids timing skew in‐phase/quadrature gain imbalance instead of requiring h...

In this paper, a Non-dominated Sorting Genetic Algorithm-II (NSGA-II) based approach is presented for distribution system reconfiguration. In contrast to the conventional GA based methods, the proposed approach does not require weighting factors for conversion of multi-objective function into an equivalent single objective function. In order to illustrate the performance of the proposed method,...

Introduction: Microdosimeters are helpful for dose equivalent measurement in unknown radiation fields. The favorable physical and mechanical properties of the detector-grade chemical vapor deposition diamond materials have made the diamond microdosimeters suitable candidate for radioprotection applications in space. The purpose of this work is the investigation of the dose equivalent response o...

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