Results 41 to 50 of about 2,026 (243)
The activity of selected gamma radionuclides in the Tatra National Park
E3S Web of Conferences, 2017 Cesium is naturally occurring active metal, represented by one stable isotope 133Cs, and number of artificial, unstable, isotopes. The most common artificial isotope of cesium is 137Cs, present in the environment of the Tatra Mountains due to nuclear ...
Kubica Barbara +3 more
doaj +1 more source
Записки Горного института, 2023 The distribution of natural (at the level of global background) and technogenic radionuclides in groundwater of the industrial zone in Sosnovy Bor town, where several nuclear power facilities are operating, was analyzed.
Valentina A. Erzova +5 more
doaj +1 more source
Sensors, 2015 We fabricated a small-sized, flexible, and insertable fiber-optic radiation sensor (FORS) that is composed of a sensing probe, a plastic optical fiber (POF), a photomultiplier tube (PMT)-amplifier system, and a multichannel analyzer (MCA) to obtain the ...
Wook Jae Yoo +5 more
doaj +1 more source
Evaluation of observed and modelled aerosol lifetimes using radioactive tracers of opportunity and an ensemble of 19 global models [PDF]
Atmospheric Chemistry and Physics, 2016 Aerosols have important impacts on air quality and climate, but the processes affecting their removal from the atmosphere are not fully understood and are poorly constrained by observations. This makes modelled aerosol lifetimes uncertain.
N. I. Kristiansen +33 more
doaj +1 more source
Masses of very neutron-deficient isotopes in the cadmium-to-cesium region [PDF]
Nuclear Physics A, 1982 Abstract Recently measured Q-values for α-decays, β + EC decays and β-delayed proton decays in the tin region are used to link known mass-excess values to new ones close to the proton drip line, for elements ranging from cadmium to cesium. The strength of the Z = 50 proton shell is derived from experimental data in a model-independent way.
A. Płochocki +7 more
openaire +1 more source
The use of stable Cs and Sr as proxies for the estimation of radionuclide soil-plant transfer factors [PDF]
Ядерна фізика та енергетикаTransfer factors are key inputs for modelling the transport of radionuclides in the environment and for assessment of risk to humans and wildlife. However, for many combinations of soil conditions, plant species (products), and radionuclides, such ...
S. Levchuk +3 more
doaj +1 more source
High-accuracy mass determination of unstable cesium and barium isotopes [PDF]
Nuclear Physics A, 1999 Abstract Direct mass measurements of short-lived Cs and Ba isotopes have been performed with the tandem Penning trap mass spectrometer ISOLTRAP installed at the on-line isotope separator ISOLDE at CERN. Typically, a mass resolving power of 600 000 and an accuracy of δm ≈ 13 keV have been obtained.
Ames, F. +21 more
openaire +1 more source
Angewandte Chemie, EarlyView.Multiscale simulations reveal an inversed cation size effect (Li+ > Na+ > K+ > Cs+) in immobilized cobalt phthalocyanine ‐catalyzed CO2 reduction to methanol. Smaller cations like Li+ effectively stabilize the rate‐limiting proton‐transfer transition state through intimate coordination, whereas their disruption of the local hydrogen‐bond network ...
Ke Ye +3 more
wiley +2 more sources
Trends in Ocean S‐Isotopes May Be Influenced by Major LIP Events
Geophysical Monograph Series, Page 341-376., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Ross. R. Large +5 more
wiley +3 more sources
Angewandte Chemie, EarlyView.A metal‐free fluorinated ketazine‐linked COF is introduced as an efficient electrocatalyst for nitrate reduction to ammonia under neutral conditions. Fluorine substitution enhances π–π stacking and crystallinity, enabling a Faradaic efficiency of 59.9% and an NH3 yield rate of 1639.9 µmol h−1 mgCOF−1 at −0.9 V versus RHE. This establishes an unexplored
Islam E. Khalil +12 more
wiley +2 more sources