Results 21 to 30 of about 1,308,491 (270)

Radon Emanation Phenomena: A Probabilistic Basis to Estimate Radon Emanation Coefficients Based on Its Zigzag Travel [PDF]

open access: yesJournal of Nuclear Science and Technology, 2008
Previous theoretical approaches based on mathematical models by other researchers to the subject of radon emanation assumed straight linear travel of radon generated in grains constituting rocks or soils. However, it is difficult for these approaches to explain high radon emanation coefficients for rocks or soils without the introduction of the ideas ...
Tomozo SASAKI, Yasuyoshi GUNJI
openaire   +1 more source

The Global Electric Circuit and Global Seismicity

open access: yesGeosciences, 2021
Basing on the catalogue of earthquakes with a magnitude of M ≥ 4.5 for the period 1973–2017, a UT variation with an amplitude of ~10% in the number of earthquakes is revealed and compared with a UT variation in the ionospheric potential (IP) with an ...
Sergey Pulinets, Galina Khachikyan
doaj   +1 more source

A method for measuring radioxenon emanation with cryotrapping and [gamma] spectroscopy [PDF]

open access: yes, 2019
Measuring noble gas emanation has been challenged by environmental variables that greatly impact the behavior of gas transport such as temperature, pressure gradients, and complex geologies.
Blood, Mikaela E.
core   +1 more source

Envisaging the asymmetrical association among FDI, ICT, and climate change: a case from developing country

open access: yesCarbon Management, 2021
This investigation utilized the Non-Linear Autoregressive Distributed Lag (NARDL) approach to ascertain the non-linear influence of FDI and ICT on CO2 emission in Pakistan.
Khurram Shehzad   +2 more
doaj   +1 more source

Geologic and climatic controls on the radon emanation coefficient

open access: yesEnvironment International, 1996
Abstract Geologic, pedologic, and climatic factors, including radium content, grain size, siting of radon parents within soil grains or on grain coatings, and soil moisture conditions, determine a soil's emanating power and radon transport characteristics.
R.Randall Schumann, Linda C.S. Gundersen
openaire   +1 more source

Environmental impacts of waste produced from processing of different uraniferous rock samples

open access: yesJournal of Radiation Research and Applied Sciences, 2016
Radon exhalation rates from five studied laboratory waste samples resulted from five different sedimentary rock types named sandy dolostone, siltstone –two samples-, marly claystone and black shale were measured using ‘‘Sealed Can technique”. These rates
Ibrahim E. El Aassy   +2 more
doaj   +1 more source

Shallow circulation groundwater – the main type of water containing hazardous radon concentration [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2011
The main factors affecting the value of <sup>222</sup>Rn activity concentration in groundwater are the emanation coefficient of reservoir rocks (<i>K</i><sub>em</sub>), the content of parent <sup>226</sup> ...
T. A. Przylibski
doaj   +1 more source

Using radon to understand parafluvial flows and the changing locations of groundwater inflows in the Avon River, southeast Australia [PDF]

open access: yesHydrology and Earth System Sciences, 2016
Understanding the location and magnitude of groundwater inflows to rivers is important for the protection of riverine ecosystems and the management of connected groundwater and surface water systems.
I. Cartwright, H. Hofmann
doaj   +1 more source

Quantification of 37Ar emanation fractions from irradiated natural rock samples and field applications. [PDF]

open access: yes, 2022
Underground-produced 37Ar can be used for underground nuclear explosions (UNE) detection and for groundwater dating. The quantification of the emanation, that is the fraction of activity produced in the rock that escapes to the pore space, is essential ...
Berger, A   +17 more
core   +2 more sources

Radon migration in the soils of the Irno Valley (Southern Italy) inferred from radioactive disequilibrium

open access: yesAnnals of Geophysics, 1995
Radon migration along vertical profiles in the soils of Irno River alluvial Valley (Southern Italy) was studied using radioactive disequilibrium between 226 Ra and 210 Pb.
P. Gasparini   +2 more
doaj   +1 more source

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