Preliminary Study on Natural Radionuclide Concentration in Samosir Area
نویسندگان
چکیده
منابع مشابه
Preliminary Study on Natural Radionuclide Concentration in Samosir area
Measurement of natural radionuclides concentration in Samosir area of Sumatera island of Indonesia aims to obtain basis data of the content of radionuclides that could be tended in the development of the area. This research was conducted using Neutron Activation Analysis (NAA), which consists of a sampling of soil of Samosir Island as the residential area and the soil surrounding of Pangururan ...
متن کاملStudy on Vegetation Changes of Natural Ranges in KhoyBilehvar Semi-Steppic Area of West Azarbaijan Province
The study of the exclosure effects on the vegetation changes undergrazing and non-grazing conditions in the rangeland areas has particularimportance in the rangeland improvement and revivification projects. Theresearch was accomplished in semi-steppe KhoyBilehvar area, from 1999 to2005. Vegetation cover was annually measured within fixed plots during transact.The results showed that during nine...
متن کاملeffects of first language on second language writing-a preliminary contrastive rhetoric study of farsi and english
to explore the idea the investingation proposed, aimed at finding whether the performances of the population of iranians students studying english in an efl context are consistent in l1 and l2 writing taks and whether there is a cross-linguistic transfer in this respect. in this regard the subjects were instructed to write four compositions-two in english and two in farsi-which consisted of an ...
15 صفحه اولOn the Gaussian Concentration Inequality and Its Relation to the Gaussian Surface Area (preliminary Version)
Let γ2 be a standard Gaussian measure in R. For a given measurable set Q in R, let HQ be a half space in R such that γ2(Q) = γ2(HQ). The classical Gaussian concentration inequality states that for all measurable sets Q ⊂ R and for all h > 0, γ2(Q+ hB n 2 ) ≥ γ2(HQ + hB 2 ). Under some minor constrains on the set Q we obtain an improvement of the latter inequality in a certain range of h, depend...
متن کاملThe role of natural ventilation on reducing indoor radon concentration
Due to the increasing of closed ventilation systems used in buildings, the risk of indoor radon is increased day by day. In this study, we selected two sample rooms to calculate the radon emission coefficient from different levels, radon concentration measured when the natural ventilation was completely closed and compared with the analytical results. The results clearly show the difference in ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Oriental Journal of Chemistry
سال: 2017
ISSN: 0970-020X
DOI: 10.13005/ojc/330157