Results 211 to 220 of about 3,648 (254)

Combined Association of Plasma Metabolites with Body Mass Index and Physical Activity Level. [PDF]

Biology (Basel)
Lambert M, Pedroso LC, Rosini Silva AA, Messias LHD, Porcari AM, Carvalho PO, Scariot PPM, Dos Reis IGM.   +7 more
europepmc   +1 more source

Outdoor Radon Dose Rate in Canada's Arctic amid Climate Change. [PDF]

Environ Sci Technol
Liu C, Chen J, Zhang W, Ungar K.
europepmc   +1 more source

Prokaryotic Diversity and Community Distribution in the Complex Hydrogeological System of the Añana Continental Saltern. [PDF]

Microb Ecol
Azpiazu-Muniozguren M, García-Martínez M, Zabaleta A, Antiguedad I, Garaizar J, Laorden L, Martinez-Malaxetxebarria I, Martinez-Ballesteros I.   +7 more
europepmc   +1 more source

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Variation rules of the radon emanation coefficient in dump-leached uranium tailing sand

Journal of Radioanalytical and Nuclear Chemistry, 2019
This study was intended to determine the variation rules of the radon emanation coefficient in dump-leached uranium tailing sand. A temperature and humidity controllable device for measuring the emanation coefficient was designed. Tailing sand with different grain sizes was selected from uranium tailings in southern China.
Chun-hua Huang, Shi Li, Yong-jun Ye, De-xin Ding, Wen-hao Wu   +4 more
openaire   +3 more sources

Natural radioactivity and radon emanation coefficient in the soil of Ninh Son region, Vietnam

Applied Geochemistry, 2019
Abstract The natural radioactivity (238U, 226Ra, 232Th and 40K) and radon emanation coefficient for 57 soil samples belonging to alluvial, red, forest surface, slip-debris, metamorphic and sandy soil of the Ninh Son region in Ninh Thuan province have been determined.
Huynh Nguyen Phong Thu, Nguyen Van Thang, Truong Thi Hong Loan, Nguyen Van Dong, Le Cong Hao   +4 more
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Estimating the radon emanation coefficient from crystalline rocks into groundwater

Applied Radiation and Isotopes, 2000
A simple method is proposed to estimate the coefficient of radon emanation from crystalline rocks into underground waters. In these cases, the crystalline rock seems as both the source and the reservoir of the radon. The calculations are based on a formula proposed by Maché for determining the concentration of radon in underground waters.
Tadeusz A Przylibski
openaire   +4 more sources

Determination of the emanation coefficient and the Henry’s law constant for the groundwater radon

Journal of Radioanalytical and Nuclear Chemistry, 2010
The radon emanation coefficient (e) from aquifer rock and the Henry’s law constant (H) of radon were determined by measuring activity concentrations using liquid scintillation counter (LSC). For the evaluation of the method, the coefficients were measured at 0, 10 and 20 °C and the temperature dependency of the coefficients was compared with others ...
Kil Yong Lee, Yoon Yeol Yoon, Kyung Seok Ko   +2 more
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The effect of water content on the radon emanation coefficient for some building materials used in Japan

Radiation Measurements, 2011
Abstract Building materials used in Japan were collected from several companies and their radionuclide concentrations were measured. Fifteen granite samples with high activity concentrations were selected for the present study. To investigate the effect of water content on the radon emanation coefficient, the coefficient was measured under 3 ...
Nabil M. Hassan, Tetsuo Ishikawa, Masahiro Hosoda, Kazuki Iwaoka, Atsuyuki Sorimachi, Sarata K. Sahoo, Miroslaw Janik, Chutima Kranrod, Hidenori Yonehara, Masahiro Fukushi, Shinji Tokonami   +10 more
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Simultaneous determination of the radon diffusion coefficient and the free radon production rate from compact porous emanation media

Building and Environment, 2018
Abstract The radon diffusion coefficient and the free radon production rate are important parameters for used to describe the migration of radon in porous emanation media. However, the method currently used to determine these two parameters is complicated.
Yong-jun Ye, Wen-hao Wu, Sheng-yang Feng, Chun-huang Huang, Shi Li   +4 more
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Dependence of the radon emanation coefficient on radium distribution and internal structure of the material

Geochimica et Cosmochimica Acta, 1993
Abstract The mechanisms of escape of radon from the solid structure of a particle to the free pore space are examined. According to the present state of knowledge, the most important factors affecting the radon emanation coefficient are the distribution of the parent radium atoms and the internal structure of the material.
Morawska, L., Phillips, Colin R.
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