Results 61 to 70 of about 12,556,675 (343)
, 2015 In this paper we develop a simple two compartment model which extends the Farhi equation to the case when the inhaled concentration of a volatile organic compound (VOC) is not zero.
Amann, Anton +7 more
core +1 more source
Global perspective of nitrate flux in ice cores [PDF]
, 1995 The relationships between the concentration and the flux of chemical species (Cl-, NO3 - , SO42-, Na +, K + , NH4 + , Mg 2+ , Ca 2+) versus snow accumulation rate were examined at GISP2 and 20D in Greenland, Mount Logan from the St.
Dibb, Jack E. +7 more
core +3 more sources
, 2020 A layer of phosphogypsum was placed at the bottom of two large volume boxes. This system allowed to measure the surface radon exhalation from phosphogypsum without altering the emitting material.
I. Gutiérrez-Álvarez +5 more
semanticscholar +1 more source
Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization
Advanced Materials Interfaces, EarlyView.Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan +6 more
wiley +1 more source
Radiation Protection and Environment, 2018 In the present study, Radon (222Rn) and Thoron (220Rn) concentration have been measured in the Bangalore University Campus using RAD7 during the postmonsoon season. The results reveal that 222Rn concentration ranged from 360 ± 146 to 643 ± 196 Bq/m3 with
M B Karthik Kumar +3 more
doaj +1 more source
Lithosphere, 2021 On the basis of reviewing the existing research status of cumulative damage of the rock mass and summarizing the existing engineering application fields of radon, this paper attempts to apply radon detection technology to the research field of rock ...
Shuai Zhang +5 more
doaj +1 more source
Real-time setup to measure radon emission during rock deformation. Implications for geochemical surveillance [PDF]
, 2015 Laboratory experiments can represent a valid approach to unravel the complex interplay between the geochemical behaviour of radon and rock deformation mechanisms.
Castelluccio, M. +4 more
core +3 more sources
Radon and thoron exhalation rate measurements from building materials used in Serbia
Nukleonika, 2020 The second most important source of indoor radon, after soil beneath dwelling, is building material. With the increase in environmental awareness and new energy-saving policies, residents tend to replace the existing windows with tighter windows, which ...
I. Čeliković +6 more
semanticscholar +1 more source
Advanced Materials Technologies, EarlyView.Integrated Au nanosheet sensor array enables simultaneous inference of gas concentration and flow rate via deep neural network analysis, without external flow control. ABSTRACT Gas sensor responses are considerably affected by gas flow rates, thereby inhibiting the accurate detection of target gas concentrations in variable‐flow applications such as ...
Taro Kato +4 more
wiley +1 more source
Fuzzy optimization of radon reduction by ventilation system in uranium mine
Nuclear Engineering and Technology, 2023 Radon and radon progeny being natural radioactive pollutants, seriously affect the health of uranium miners. Radon reduction by ventilation is an essential means to improve the working environment. Firstly, the relational model is built between the radon
Meirong Zhang, Jianyong Dai
doaj +1 more source