ترجمه کامل مقاله «Data Security Issues in Cloud Environment and Solutions» با عنوان فارسی «مسائل مربوط به امنیت داده ها در محیط ابری و راهکارها» ارائه شده در کنگره جهانی در محاسبات و ارتباطات فن آوری2014 در قالب ورد همراه با متن اصلی
Covering the basics of X-rays, CT, PET, nuclear medicine, ultrasound and MRI, this
textbook provides senior undergraduate and beginning graduate students with a broad
introduction to medical imaging. Over 130 end-of-chapter exercises are included, in
addition to solved example problems, which enable students to master the theory as well
as providing them with the tools needed to solve more difficult problems. The basic
theory, instrumentation and state-of-the-art techniques and applications are covered,
bringing students immediately up-to-date with recent developments, such as combined
computed tomography/positron emission tomography, multi-slice CT, four-dimensional
ultrasound and parallel imaging MR technology. Clinical examples provide practical
applications of physics and engineering knowledge to medicine. Finally, helpful refer-
ences to specialized texts, recent review articles and relevant scientific journals are
provided at the end of each chapter, making this an ideal textbook for a one-semester
course in medical imaging.
ZEBRA was a fast critical assembly facility operating at the Winfrith site of the UKAEA from 1962 until 1984.
In this note input data are given for MCNP models of six ZEBRA Fast Reactor Assemblies,
four of them being from the Cadenza programme and two from the Mozart programme. In addition there are two
intermediate assemblies from the Cadenza programmer.
جهت مشاهده تصویر بزرگتر کلیک کنید
Purpose: Accurate organs at risk definition is essential for radiation treatment of brain tumors. The aim of this study is to provide a stepwise and simplified contouring guide to delineate the OARs in the brain as it would be done in the everyday practice of planning radiotherapy for brain cancer treatment.
Methods: Anatomical descriptions and neuroimaging atlases of the brain were studied. The dosimetric
constraints used in literature were reviewed.
Results: A Computed Tomography and Magnetic Resonance Imaging based detailed atlas was developed jointly by radiation oncologists, a neuroradiologist and a neurosurgeon. For each organ brief anatomical notion, main radiological reference points and useful considerations are provided.
Recommended dose-constraints both for adult and pediatric patients were also provided.
Conclusions: This report provides guidelines for OARs delineation and their dose-constraints for the treatment planning of patients with brain tumors.
Radiotherapy atlasوOrgans at riskوBrain contouring atlasوNormal tissueوDose-constraintsوOptic chiasm
Xe calorimeter, wire-chamber spectrometer, timing counters
an updated discussion on:
advantages, disadvantages, open problems, etc.
of proposed methods