Results 21 to 30 of about 5,619 (263)

Measurement Radon Concentration in Imported and Local Wood Using Solid State Nuclear Track Detectors

open access: yesمجلة بغداد للعلوم, 2013
: The aim of the present work is to measure radon concentration in wood. Solid state nuclear track detectors of type CR – 39 was used as measurement device. Eight different samples of imported and local wood were collected from markets.
Baghdad Science Journal
doaj   +1 more source

A New Approach for Approximating Solution of Continuous Semi-Infinite Linear Programming [PDF]

open access: yesControl and Optimization in Applied Mathematics, 2017
This paper describes a new optimization method for solving continuous semi-infinite linear problems. With regard to the dual properties, the problem is presented as a measure theoretical optimization problem, in which the existence of the solution is ...
Alireza Fakharzadeh Jahromi   +1 more
doaj  

Semigroups with Invariant Radon Measures [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
Let S S be a commutative semigroup which is a topological space such that the translations are both continuous and open ...
openaire   +2 more sources

Measurement of the radon and thoron exhalation rates from the water surface of Yixin lake

open access: yesNuclear 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   +13 more
doaj   +1 more source

Radon leakage assessment in a controlled radon laboratory [PDF]

open access: yesGeofísica Internacional, 2002
As part of the activities to have a radon calibrated laboratory in Mexico, a DOSEman, an Alpha GUARD and a Germanium detector were used to measure the radon concentration of a radon source chamber.
A. Chávez   +3 more
doaj  

Negligible sets of Radon measures [PDF]

open access: yesProceedings of the American Mathematical Society, 1983
Let m m be a Radon measure on a Hausdorff topological space
openaire   +2 more sources

Measuring radon in soil gas and groundwaters: a review

open access: yesAnnals of Geophysics, 2007
Instruments for the measurements of radon and its decay products in earthquake research are based mostly on the detection of alpha particles. The devices and methods used depend on whether the techniques measure radon or radon decay products ...
C. Papastefanou
doaj   +1 more source

Effecting of Radon Gas on Some Antioxidant and Liver Enzymes of Female Rats [PDF]

open access: yesEgyptian Journal of Health Care
Uranium and its daughters such as radium-226 and radon gas are harmful elements to the human body, it is considered a known carcinogen. Radon exposure can significantly affect the enzymes such as antioxidant enzymes and Liver enzymes.
Sajad A. Algazali   +10 more
doaj   +1 more source

Radon exhalation rate from the latex pillows and its potential exposure to users

open access: yesRadiation Medicine and Protection
Objective: To develop a new system to accurately measure the radon exhalation from the latex pillows, and to estimate its potential exposure to users. Methods: The new system is composed of two loops, the first loop is designed to trap background radon ...
Phachirarat Sola   +12 more
doaj   +1 more source

Continuity of solutions to the $G$-Laplace equation involving measures

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2019
We establish local continuity of solutions to the $G$-Laplace equation involving measures, i.e., \begin{align*} -\text{div}\ \bigg(\frac{g(|\nabla u|)}{|\nabla u|}\nabla u\bigg)=\mu,\end{align*} where $\mu$ is a nonnegative Radon measure satisfying $\mu (
Yan Zhang, Jun Zheng
doaj   +1 more source

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