نتایج جستجو برای: سزیوم 137

تعداد نتایج: 13885  

Journal: :Journal of environmental radioactivity 2014
M H Paller G T Jannik R A Baker

During the operational history of the Savannah River Site (SRS), many different radionuclides have been released from site facilities into the SRS environment. However, only a relatively small number of pathways, most importantly (137)Cs in fish and deer, have contributed significantly to doses and risks to the public. The "effective" half-lives (Te) of (137)Cs (which include both physical deca...

ژورنال: :تابش و فناوری هسته ای 0
فرهاد ذوالفقارپور هیات علمی در دانشگاه محقق اردبیلی پریسا تقی پور نیار گروه فیزیک، دانشکده علوم پایه، دانشگاه محقق اردبیلی، اردبیل، ایران سارا عظیم خانی گروه فیزیک، دانشکده علوم پایه، دانشگاه محقق اردبیلی، اردبیل، ایران محمد نیکوصفت گروه فیزیک، دانشکده علوم پایه، دانشگاه محقق اردبیلی، اردبیل، ایران

پراکندگی فوتون های گاما به سمت عقب از سطح یک ماده را پس پراکندگی پرتوهای گاما می گویند. در این پژوهش حفاظ های سربی، آلومینیومی و آهنی به شکل دیسک به ضخامت تقریباً 1/0 سانتی متر و قطر 18 سانتی متر ، به منظور بررسی پس پراکندگی تهیه شدند. همچنین یک چشمه ی سزیم 137 بین حفاظ و آشکارساز یدورسدیم قرار داده شد و طیف گامای چشمه ثبت گردید. به منظور بررسی تأثیر ضخامت حفاظ در میزان پس پراکندگی گاما، در هر م...

Journal: :iranian journal of radiation research 0
a.a. fathivand iranian nuclear regulatory authority (inra), national radiation protection department (nrpd), tehran, iran j. amidi iranian nuclear regulatory authority (inra), national radiation protection department (nrpd), tehran, iran g.h. heravi iranian nuclear regulatory authority (inra), national radiation protection department (nrpd), tehran, iran

background: two of the important radionuclides which are entered to environment and human diet are radium-226 (226ra) and cesium-137 (137cs). it is clear that the methods for preparation of foods such as peeling, washing, cooking or frying can affect the dose which is received by human due the to consumption of foodstuffs. an experiment has been performed at the environmental monitoring section...

2011
Ali S. Faris Susan Goheen George Dumitrascu

137 Placenta Percreta, Unusual Presentation Abstract Type: Case Report/Case Series Ali S. Faris, M.B.Ch.B, FIBMS; Leo Jeyaraj, M.D., FRCA; Susan Goheen, M.D., F.R.C.P.C.; George Dumitrascu, M.D., F.R.C.P.C. The Ottawa Hospital Civic CampusType: Case Report/Case Series Ali S. Faris, M.B.Ch.B, FIBMS; Leo Jeyaraj, M.D., FRCA; Susan Goheen, M.D., F.R.C.P.C.; George Dumitrascu, M.D., F.R.C.P.C. The ...

2004
JOHN J. MCCARTHY

0 T verse has been a subject for lively discussion among scholars for at least two centuries. Yet in spite of the length of time that the topic has been under intensive study, no generally accepted solution has emerged. (A brief survey of previous research into the topic is offered by Stuart.)’ Among the different approaches to the problem, the one that seems most productive of insights is that...

2014
Jingwen Yin Juda Lin Xudong Luo Yanyan Chen Zheng Li Guoda Ma Keshen Li

Schizophrenia is a complex genetic disease and characterized by affective, cognitive, neuromorphological, and molecular abnormalities that may have a neurodevelopmental origin. MicroRNAs (miRNAs) are critical to neurodevelopment and adult neuronal processes by modulating the activity of multiple genes within biological networks. MiR-137 as a brain-enriched microRNA, plays important roles in reg...

Journal: :Journal of the Royal Naval Medical Service 1964
A G SLARK

During the course of the last decade the incidence of decompression sickness within the Royal Navy has markedly increased. Whereas in the past such cases were largely the result of accident or negligence and fortunately rare, the testing of new techniques and tables has produced sufficient material to make some analysis of the various methods of treatment worth while. This paper consists of sum...

2015
Karen Siu-Ting Davide Pisani Christopher J. Creevey Mark Wilkinson

Page: 137 137–143 Syst. Biol. 64(1):137–143, 2015 © The Author(s) 2014. Published by Oxford University Press, on behalf of the Society of Systematic Biologists. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provid...

Journal: :Old Testament Essays 2018

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید