Results 61 to 70 of about 2,823 (220)

Radon and thoron exhalation rate in the soil of Western Haryana, India

open access: yesEnvironmental Monitoring and Assessment, 2022
Abstract This study, reports the exhalation rates of radon and thoron from surface soil collected from 60 rural sites of district Hisar, Haryana, India. The exhalation rates of Rn222 (Radon)& Rn220(Thoron) were measured by portable SMART RnDuo (AQTEK SYSTEMS) using a mass accumulation chamber which is equipped with a scintillation material ...
Shakuntala, Rani   +5 more
openaire   +2 more sources

Artificial Neural Network Optimization to Estimate Radon in Soil

open access: yesStatistical Analysis and Data Mining: An ASA Data Science Journal, Volume 18, Issue 5, October 2025.
ABSTRACT Modeling and estimating radon concentration are of crucial interest to support health protection campaigns. In the literature, many studies concentrated on indoor radon, while few of them investigated the outdoor radon spatial distribution and the factors that influence its formation.
Veronica Distefano   +2 more
wiley   +1 more source

The Schauinsland CO2 record: 30 years of continental observations and their implications for the variability of the European CO2 budget [PDF]

open access: yes, 2003
Since 1972, the German Environment Agency (UBA) has been measuring continuously CO2 concentration at Schauinsland station (southwest Germany, 1205 m asl).
Graul, Rolf   +3 more
core   +1 more source

Estimation of indoor radon levels using etched track detector

open access: yesJournal of Radiation Research and Applied Sciences, 2018
In this investigation, the activity levels of Indoor Radon-222, effective radium contents, exhalation rate of radon, and annual effective dose are reported for different indoor locations (Offices, Laboratories, Meeting rooms, and Storerooms) at two ...
Basma A. El-Badry, Tayseer I. Al-Naggar
doaj   +1 more source

The presence and dosimetry of radon and thoron in a historical, underground metalliferous mine [PDF]

open access: yes, 2018
A combination of long term passive, and short term active radon-222, radon-220 and respective progeny measurements were conducted in both traverse and longitudinal axes of a historical metalliferous underground mine in North Queensland, Australia.
Blevin   +41 more
core   +2 more sources

Measurement of Air Exchange Rate and Radon Exhalation Rate from Walls [PDF]

open access: yesMeasurement of Air Exchange Rate and Radon Exhalation Rate from Walls
H. "Yamanishi   +9 more
core   +1 more source

An Animal Model of Liuzijue Based on Kinematic Features Exploration: A Pilot Study Conducting in COPD

open access: yesImmunity, Inflammation and Disease, Volume 13, Issue 8, August 2025.
In this study, we initiated an exploration based on the kinematic characteristics of Liuzijue Qigong, aiming to develop an animal model of Liuzijue suitable for animal experimentation. The outcomes of the research have substantiated the feasibility of this model establishment protocol.
Jian Li   +10 more
wiley   +1 more source

QUANTIFICATION OF BACK DIFFUSION IN RADON AND THORON EXHALATION RATE MEASUREMENTS

open access: yesRadiation Protection Dosimetry, 2020
Abstract The radon (222Rn) and thoron (220Rn) fluxes from the soil and building materials are the major contributors to their indoor levels. Hence, the measurement of radon and thoron exhalation rates from the source matrix becomes the foremost step in controlling the indoor radon and thoron exposure.
N, Chitra   +5 more
openaire   +2 more sources

Non‐Invasive Diagnosis of Hypertrophic Cardiomyopathy by Breath

open access: yesAdvanced Sensor Research, Volume 4, Issue 7, July 2025.
The use of sensor technologies for the diagnosis of hypertrophic cardiomyopathy (HCM) by identification of volatile organic compounds (VOCs) in breath samples. By combining gas chromatography‐mass spectrometry (GC‐MS) and electronic nose (eNose) platforms, specific VOC patterns associated with HCM are detected and analyzed.
Yael Hershkovitz‐Pollak   +5 more
wiley   +1 more source

Indoor radon and thoron from building materials: Analysis of humidity, air exchange rate, and dose assessment

open access: yesNuclear Engineering and Technology, 2020
Building materials contribute significantly to the indoor radon and thoron levels. Therefore, parameters that influence the exhalation rates of radon and thoron from building material need to be analyzed closely.
Ahmad Ciptadi Syuryavin   +3 more
doaj   +1 more source

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