Results 21 to 30 of about 620 (267)

Radiometric properties of sepiolite minerals from quarries in central Anatolia of Turkey [PDF]

open access: yesNuclear Technology and Radiation Protection, 2019
Sepiolite is a naturally occurring clay mineral of sedimentary origin and is a magnesium hydrosilicate. Sepiolite has been widely used as an additive raw material in ceramics and cement industry, pharmaceutical, cleaning-detergent, paper, paint, cosmetic
Hancerliogullari Aybaba   +3 more
doaj   +1 more source

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

Ion implantation of 226Ra for a primary 222Rn emanation standard

open access: yes, 2022
Laser resonance ionization at the RISIKO 30 kV mass separator has been used to produce isotopically and isobarically pure and well quantified 222Rn emanation standards.
Weber, Felix   +9 more
core   +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

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

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

High Radon Emanation Coefficients of Porous Matters Produced through Filtration and Precipitation [PDF]

open access: yesJournal of Nuclear Science and Technology, 2008
Previous theoretical predictions of high radon emanation coefficients were verified in experiments using porous matters artificially produced through filtration and precipitation. Such porous matters were prepared by replicating uranium-bearing waste generating processes used in fuel fabrication facilities in Japan except that radium was employed ...
Tomozo SASAKI, Yasuyoshi GUNJI
openaire   +1 more source

Radon emanation of building material-impact of back diffusion and difference between one-dimensional and three-dimensional tests

open access: yes, 1999
Small-scale chamber experiments were conducted to investigate the radon emanation rates of commonly used building materials such as bare concrete, granite, red brick, and sand brick.
Chao, Christopher Y.H.   +1 more
core   +2 more sources

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