Results 31 to 40 of about 2,020 (237)

Application of Neural Network and Time-Domain Feature Extraction Techniques for Determining Volumetric Percentages and the Type of Two Phase Flow Regimes Independent of Scale Layer Thickness

Applied Sciences, 2022
One of the factors that significantly affects the efficiency of oil and gas industry equipment is the scales formed in the pipelines. In this innovative, non-invasive system, the inclusion of a dual-energy gamma source and two sodium iodide detectors was
Abdullah K. Alanazi, Seyed Mehdi Alizadeh, Karina Shamilyevna Nurgalieva, Slavko Nesic, John William Grimaldo Guerrero, Hala M. Abo-Dief, Ehsan Eftekhari-Zadeh, Ehsan Nazemi, Igor M. Narozhnyy   +8 more
doaj   +1 more source

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, Stobiński Marcin, Szaciłowski Grzegorz, Szarłowicz Katarzyna   +3 more
doaj   +1 more source

Forecast of radionuclide migration in groundwater of the zone affected by construction drainage at the Leningrad NPP-2

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, Vyacheslav G. Rumynin, Anton M. Nikulenkov, Konstantin V. Vladimirov, Sergei M. Sudarikov, Mariia V. Vilkina   +5 more
doaj   +1 more source

Development of a Small-Sized, Flexible, and Insertable Fiber-Optic Radiation Sensor for Gamma-Ray Spectroscopy

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, Sang Hun Shin, Dong Eun Lee, Kyoung Won Jang, Seunghyun Cho, Bongsoo Lee   +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, A. Stohl, D. J. L. Olivié, B. Croft, O. A. Søvde, H. Klein, T. Christoudias, D. Kunkel, S. J. Leadbetter, Y. H. Lee, K. Zhang, K. Tsigaridis, T. Bergman, N. Evangeliou, N. Evangeliou, H. Wang, P.-L. Ma, R. C. Easter, P. J. Rasch, X. Liu, G. Pitari, G. Di Genova, S. Y. Zhao, Y. Balkanski, S. E. Bauer, G. S. Faluvegi, H. Kokkola, R. V. Martin, J. R. Pierce, J. R. Pierce, M. Schulz, D. Shindell, H. Tost, H. Zhang   +33 more
doaj   +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 енергетика
Transfer 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, V. Kashparov, V. Morozova, V. Pavliuchenko   +3 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, J. Zylicz, R. Kirchner, O. Klepper, E. Roeckl, P. Tidemand-Petersson, I.S. Grant, P. Misaelides   +7 more
openaire   +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., Audi, G., Beck, D., Bollen, G., de Saint Simon, M., Jertz, R., Kluge, H.J., Kohl, A., Konig, M., Lunney, D., Martel, I., Moore, R.B., Otto, T., Patyk, Z., Raimbault-Hartmann, H., Rouleau, G., Savard, G., Schark, E., Schwarz, S., Schweikhard, L., Stolzenberg, H., Szerypo, J.   +21 more
openaire   +1 more source

Cross Kingdom Metabolic Engineering Paradigm Elevating Sustainable Protein Production

Advanced Science, EarlyView.
ABSTRACT Confronting the dual crisis of escalating global protein demand and unsustainable agriculture necessitates transformative solutions. Here, we pioneer evolutionary insights from maize nitrogen optimization via asparagine synthetase (ASNS) to rewire metabolism in Pichia pastoris.
Yuanyuan Du, Changyu Pi, Kai Hong, Le Gao, Xin Wu   +4 more
wiley   +1 more source

CO2 as a Redox Shuttle Enables Photocatalytic Dehydrogenative Decarbonylation of Biomass‐Derived Alcohols to Light Alkanes

Angewandte Chemie, EarlyView.
A heterogeneous photocatalytic system has been developed that enables the dehydrogenative decarbonylation of primary alcohols under visible light using highly dispersed oxidic iron sites supported on aryl‐modified graphitic carbon nitride (Fe@f–gC3N4).
Jun Hu, Wenhao Su, Chaoqin Zeng, Bruno Vinicius Manzolli Rodrigues, Nils Rockstroh, Susanna Monti, Giovanni Barcaro, Piotr Kuśtrowski, Aleksander Jaworski, Jabor Rabeah, Adam Slabon, Shoubhik Das   +11 more
wiley   +2 more sources