Results 31 to 40 of about 2,823 (220)

Radon and Thoron Exhalation Rates from Surface Soil of Bangka - Belitung Islands, Indonesia

Indonesian Journal on Geoscience, 2015
DOI:10.17014/ijog.2.1.35-42Radon and thoron exhalation rate from soil is one of the most important factors that can influence the radioactivity level in the environment.
Syarbaini Syarbaini, E. Pudjadi
doaj   +1 more source

Radon Exhalation Patterns in A Dead-end Tunnel

MATEC Web of Conferences, 2016
The regularity of radon exhalation rate in the over-broken granite tunnel is susceptible to weather conditions and ventilation styles. Based on the calculation model of radon exhalation in tunnel, some experiments have been carried out to analyze the ...
Wang Shu Guang, Niu Xiao Bing, Chen Qing, Yang Wei   +3 more
doaj   +1 more source

Observations of atmospheric variability and soil exhalation rate of 222Radon at a Russian forest site: Technical approach and deployment for boundary layer studies [PDF]

, 2002
A monitor for continuous observations of the atmospheric 222Rn daughter activity has been improved and successfully implemented in a field study at a Russian site (Fyodorovskoye Forest Reserve).
Born, Matthias, Cuntz, Matthias, Langendörfer, Uwe, Levin, Ingeborg, Mantsch, Stefan, Naegler, Tobias, Schmidt, Martina, Varlagin, Andrej, Verclas, Stefan, Wagenbach, Dietmar   +9 more
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Measurement of the radon and thoron exhalation rates from the water surface of Yixin lake

Nuclear Engineering and Technology
The importance of determining the radon exhalation rate from water surface is emphasized by the increased use of radon and its daughter products as tracers in large-scale circulation studies of the atmosphere.
Jiulin Wu, Shuaibin Liu, Tao Hu, Fen Lin, Ruomei Xie, Shuai Yuan, Haibo Yi, Yixiang Mo, Jiale Sun, Linquan Cheng, Huiying Li, Zhipeng Liu, Zhongkai Fan, Yanliang Tan   +13 more
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Forecast of potentially dangerous rock pressure manifestations in the mine roadways by using information technology and radiometric control methods [PDF]

, 2019
Purpose. To reduce risk of emergency and injury-risk situations while improving the methods for predicting stress-strain state of the rock mass with the help of information systems, and to detect fissure locations in the mine roadways with the help of ...
Kurinnyi, V, Shevchenko, V, Slashchov, I, Slashchova, O, Yalanskyi, O   +4 more
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Assessment of radon/thoron exhalation rate in the soil samples of Amritsar and Tarn Taran district of Punjab state

Radiation Protection and Environment, 2018
In the present study, the radon mass and thoron surface exhalation rates have been measured in the soil samples collected from the villages of the Amritsar and Tarn Taran districts of Punjab using the active portable device, i.e., SMART RnDuo monitor to ...
Manpreet Kaur, Ajay Kumar, Sandeep Kaur, Kawaljit Kaur   +3 more
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Fuzzy optimal control of multilayer coverage based on radon exhalation dynamics in uranium tailings

Scientific Reports, 2023
Radon exhalation from uranium tailings has seriously affected environmental safety and human health. Many uncertain parameters, such as diffusion coefficient, porosity, percolation rate, material particle size, etc., are related to the diffusion and ...
Meirong Zhang, Jianyong Dai
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Simultaneous measurement of radon exhalation rate and CO2 flux based on accumulation chamber technique with a closed-loop system

Nuclear Engineering and Technology
Carbon dioxide is one of the most important greenhouse gases that contribute to global warming. Radon exhalation rate is an important factor in evaluating environmental radon levels.
Haibo Yi, Chenxi Zu, Jiale Sun, Jiulin Wu, Huiying Li, Zhipeng Liu, Hongbo Xu, Shicheng Luo, Xianfa Mao, Xinyue Yang, Feng Xiao, Hongzhi Yuan, Yanliang Tan   +12 more
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Correction of the radon exhalation rate using the Kalman filtering to reduce measurement errors

Nuclear Engineering and Technology
The RAD7 detector is widely used for measuring the radon exhalation rate from the surfaces of media such as soil, rocks, and building materials. However, during the measurement process, the accuracy of the results is prone to interference due to the ...
Haoyu You, Jianfeng Tang, Zhongkai Fan, Ruomei Xie, Hongzhi Yuan, Yanliang Tan   +5 more
doaj   +1 more source

Measurement of Radon Concentrations and Surface Exhalation Rates using CR-39 detector in Soil Samples of Al-Diwaniyah Governorate, Iraq [PDF]

Iranian Journal of Medical Physics, 2020
Introduction: Natural radioactivity in the soil is considered a major indicator of radiological contamination. Primordial radionuclides are the main source of natural radioactivity.
Majied Al-Gharabi, Anees Al-Hamzawi
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