Results 211 to 220 of about 17,791 (261)
Measurement of Radon Exhalation Rate from Walls
Measurement of Radon Exhalation Rate from Wallsopenaire
Measurement of Air Exchange Rate and Radon Exhalation Rate from Walls
Measurement of Air Exchange Rate and Radon Exhalation Rate from Wallsopenaire
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Exhaled Methane Is Associated with a Lower Heart Rate
Cardiology, 2021<b><i>Background:</i></b> In humans, methane (CH<sub>4</sub>) is exclusively produced by the intestinal microbiota and has been implicated in several conditions including cardiovascular disease. After microbial production of CH<sub>4</sub> in the gut, it steadily crosses into the systemic circulation and ...
Will Takakura +11 more
openaire +2 more sources
Factors controlling measurements of radon mass exhalation rate
Journal of Environmental Radioactivity, 2005Radon mass exhalation rate of soil samples was measured using an exhalation chamber of 10 dm(3) volume and a Lucas cell. The results show that mass of sample, grain size and water content influence the radon mass exhalation rate. For soil of (226)Ra activity concentration about 2500 Bq kg(-1) and samples within the range from 0.20 kg to 0.50 kg, the ...
Chau Nguyen Dinh
exaly +3 more sources
Thoron exhalation rates in areas of Japan
Radiation Protection Dosimetry, 2010Thoron exhalation rates were measured with a newly made portable instrument at 33 areas in 7 prefectures of Japan. Thoron exhalation rates ranged from 49 to 4890 mBq m(-2) s(-1). Radon exhalation rates were also measured in many of the areas at the same time and ranged from 2.1 to 11 mBq m(-2) s(-1).
M, Shimo +3 more
openaire +2 more sources
Diffusion Model of Radon Exhalation Rates
Health Physics, 1998Radon migration through walls is considered using an effective diffusion model. One and two dimensional models as well as a spherical geometry are compared. It is concluded that either the 1-dimensional or spherical model, both having analytical solution, may be used for practical purposes. Application is made for typical cases in Athens, Greece.
M, Antonopoulos-Domis +2 more
openaire +2 more sources
INFLUENCE OF THE POROSITY ON THE 222RN EXHALATION RATE OF CONCRETE
Health Physics, 2011The composition of 23 concrete mixtures was varied in five separate series to evaluate the influence of porosity on the 222Rn exhalation rate. In each series, a range in porosities is obtained by varying (1) the amount of cement, (2) type of cement (Portland or blast furnace slag cement), (3) the amount of water at a fixed cement level, (4) addition of
Jong, P. de, Dijk, W. van, Rooij, M. de
openaire +3 more sources
Radiation Protection Dosimetry, 1992
By solving the diffusion equation for the axial-symmetric geometry of in situ radon exhalation measurements, the effect of the presence of the measuring device on the exhalation rate was determined. From analyses of the calculated growth curves of the radon concentration in the device it turned out that exhalation rates deduced from measurements ...
Aldenkamp, F.J. +3 more
openaire +2 more sources
By solving the diffusion equation for the axial-symmetric geometry of in situ radon exhalation measurements, the effect of the presence of the measuring device on the exhalation rate was determined. From analyses of the calculated growth curves of the radon concentration in the device it turned out that exhalation rates deduced from measurements ...
Aldenkamp, F.J. +3 more
openaire +2 more sources
Influence of soil environmental parameters on thoron exhalation rate
Radiation Protection Dosimetry, 2010Field measurements of thoron exhalation rates have been carried out using a ZnS(Ag) scintillation detector with an accumulation chamber. The influence of soil surface temperature and moisture saturation on the thoron exhalation rate was observed. When the variation of moisture saturation was small, the soil surface temperature appeared to induce a ...
M, Hosoda +11 more
openaire +2 more sources