نتایج جستجو برای: head phantom

تعداد نتایج: 183965  

2012
Igor Smirnov

This article is related to the experimental data regarding the ability of MRET Noise Field Generator (MRET NFG) placed at the distance of 7 feet from “phantom head” exposed to RF phones radiation to reduce specific absorption rate (SAR) of the water based solution inside “phantom head”. The core part of Generator is MRET polymer compound. Due to the fractal geometry structure of MRET polymer co...

Introduction: Utilization of computed tomography (CT) scans is increasing annually. This study aimed to reduce the absorbed dose of sensitive organs in the head (eye lenses and thyroid) and to assess changes in resultant images quality in head scans when the radiation dose is decreased. Material and Methods: An anthropomorphic phantom was examined with head protocols in both helical and sectio...

2014
Vinith Chauhan

2D projections of the real 3D space are the only available information in the imaging technics like in XRay and MRI. In this paper we study projections of images as generated by Radon transformation. We implemented an image reconstruction algorithm which receives different projections of the original image as input. We performed this experiment using artificially created image in order to test ...

Journal: :Spine 2016
Bradford S Waddell W Hunter Waddell Gustavo Godoy Joseph M Zavatsky

STUDY DESIGN Anthropomorphic phantoms were used to measure radiation exposure to the surgeon phantom's eye. Groups analyzed were: Group 1-no glasses (None); Group 2-leaded lenses without lead sides (WOLS); Group 3-leaded lenses with lead sides (WLS); and Group 4-sport wraparound leaded glasses (Sport). Glasses were 0.75 mm lead equivalent. OBJECTIVE To evaluate the efficacy of three types of ...

Journal: :International Journal of Radiology and Imaging Techniques 2020

Journal: :Wireless Personal Communications 2005
Theodore Zervos Antonis Alexandridis Vladimir Petrovic Kostas Dangakis Branko M. Kolundzija Antonije R. Djordjevic Constantine F. Soras

In this work numerical simulation and measurements of three-dimensional radiation patterns of a mobile handset model in the presence of a human head phantom were performed at 1800 MHz. Based on theoretical and experimental results, the influence of the human head on the radiation efficiency of the handset has been investigated as a function of the handset size and the distance between the head ...

Journal: :Journal of clinical periodontology 2005
Grit Meissner Bernd Oehme Jens Strackeljan Alexander Kuhr Thomas Kocher

BACKGROUND Recently, pilot studies from our laboratory have shown that dental surfaces may be discriminated by the analysis of tip oscillations of an ultrasonic instrument, which possesses computerized calculus-detection features. For the evaluation of this smart detection system, its surface recognition qualities are of crucial importance. For in vivo studies, however, it proved to be difficul...

توکلی زانیانی, هاجر, نامی نظری, محمد, کلانتری, سید ظفرالله ,

One of the important neutron sources for Boron Neutron Capture Therapy (BNCT) is a nuclear reactor. It needs a high flux of epithermal neutrons. The optimum conditions of the neutron spectra for BNCT are provided by the International Atomic Energy Agency (IAEA). In this paper, Miniature Neutron Source Reactor (MNSR) as a neutron source for BNCT was investigated. For this purpose, we designed a ...

Journal: :iranian journal of child neurology 0
mahtab poor zamany nejat kermany 1. anesthesiology and critical care deprtment, labbafinejad hospital, medical university of shahid beheshti, tehran, iran ehsan modirian 2. emergency medicine department, boali hospital, qazvin university of medical sciences, qazvin, iran mohammadreza soroush 3. janbazan medical and engineering research center (jmerc), tehran, iran mahdi masoumi 3. janbazan medical and engineering research center (jmerc), tehran, iran maryam hosseini 3. janbazan medical and engineering research center (jmerc), tehran, iran

how to cite this article: poor zamany nejat kermany m, modirian e, soroush m, masoumi m, hosseini m. phantom limb sensation (pls) and phantom limb pain (plp) among young landmine amputees. iran j child neurol. summer 2016; 10(3):42-47.   abstract objective to determine the frequency of phantom limb sensation (pls) and phantom limb pain (plp) in children and young adults suffering landmine-relat...

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