Results 11 to 20 of about 2,025,082 (140)

Investigation of Behaviour of Titanium Diboride Reinforced Boron Carbide-Silicon Carbide Composites against Cs-137 Gamma Radioisotope Source by Using Gamma Transmission Technique

Acta Physica Polonica A, 2012
Boron carbide is a material which has wide application areas in industry including nuclear technology. Titanium diboride reinforced boron carbide‐silicon carbide composites were studied for searching of the behaviour against the gamma ray. It has been adopted that depending on their properties such improved materials can be used in nuclear technology ...
B. Buyuk, A.B. Tugrul, A.C. Akarsu, A.O. Addemir   +3 more
openaire   +2 more sources

Experimental Measurements and Computer Simulation of Fission Product Gamma-Ray Spectra [PDF]

, 1997
Airborne gamma ray spectrometry using high volume scintillation detectors, optionally in conjunction with Ge detectors, has potential for making rapid environmental measurements in response to nuclear accidents. An experimental investigation and computer
Sanderson, D.C.W., McConville, P., Department of the Environment, Transport and the Regions: Radioactive Substances Division, Cresswell, A., Allyson, J.D.   +4 more
core   +8 more sources

Physical Features of High-Density Barium–Tungstate–Phosphate (BTP) Glasses: Elastic Moduli, and Gamma Transmission Factors

Electronics, 2022
We present elastic moduli, gamma radiation attenuation characteristics, and transmission factor of barium–tungstate–phosphate (BTP) glasses with the chemical formula (60-y)BaO-yWO3-40P2O5, where y = 10 (S1)–40 (S4) in steps of 10 mole%.
H. Zakaly, H. Tekin, Y. Rammah, S. Issa, A. Alomari, Fatema T. Ali, D. Baykal, W. Elshami, D. E. Abulyazied, G. Almisned, A. M. A. Mostafa, Antoaneta Ene   +11 more
semanticscholar   +1 more source

Gamma frequency entrainment rescues cognitive impairment by decreasing postsynaptic transmission after traumatic brain injury

CNS Neuroscience & Therapeutics, 2023
The relationship between oscillatory activity in hippocampus and cognitive impairment in traumatic brain injury (TBI) remains unclear. Although TBI decreases gamma oscillations and 40 Hz light flicker improves TBI prognosis, the effects and mechanism of ...
Weijie Wang, Xiaotian Zhang, Ruixing He, Shaoxun Li, Da-Zhao Fang, Cong Pang   +5 more
semanticscholar   +1 more source

Determination of gamma-ray transmission factors of WO3–TeO2–B2O3 glasses using MCNPX Monte Carlo code for shielding and protection purposes

Applied Rheology, 2022
The aim of this study is to assess the individual gamma-ray transmission factors (TFs) and some fundamental gamma-ray attenuation properties of several types of glasses based on WO3–TeO2–B2O3 glasses system.
G. Almisned, Duygu Şen Baykal, G. Susoy, G. Kilic, H. Zakaly, Antoaneta Ene, H. Tekin   +6 more
semanticscholar   +1 more source

Mechanical Properties and Gamma Radiation Transmission Rate of Heavyweight Concrete Containing Barite Aggregates

Materials, 2022
The primary objective of this research was to study the transmission of gamma radiation from heavyweight concrete containing barite aggregates. For this purpose, cylindrical and cubic specimens were produced for 10 mix designs. The mix designs containing
B. Badarloo, P. Lehner, Rooholah Bakhtiari Doost   +2 more
semanticscholar   +1 more source

Effectiveness of CoronaVac among healthcare workers in the setting of high SARS-CoV-2 Gamma variant transmission in Manaus, Brazil: A test-negative case-control study

The Lancet Regional Health - Americas, 2021
Background Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant, Gamma, emerged in the city of Manaus in late 2020 during a large resurgence of coronavirus disease (COVID-19), and has spread throughout Brazil.
M. Hitchings, O. Ranzani, M. S. S. Torres, S. D. de Oliveira, M. Almiron, R. Said, R. Borg, W. Schulz, R. D. de Oliveira, P. V. da Silva, D. B. de Castro, Vanderson de Souza Sampaio, B. C. de Albuquerque, T. C. Ramos, S. H. H. Fraxe, C. D. da Costa, F. Naveca, A. Siqueira, W. N. de Araújo, J. Andrews, D. Cummings, A. Ko, J. Croda   +22 more
semanticscholar   +1 more source

Mechanical properties, elastic moduli, transmission factors, and gamma-ray-shielding performances of Bi2O3–P2O5–B2O3–V2O5 quaternary glass system

Open Chemistry, 2022
Mechanical properties, elastic moduli, transmission factors (TFs), and gamma-ray shielding performance of quaternary glass systems with chemical composition (0.25−x)Bi2O3–xB2O3−0.75(50%P2O5−50%V2O5), where x = 0.05 (S1), 0.10 (S2), 0.15 (S3), and 0.20 ...
H. Tekin, G. Almisned, Y. Rammah, G. Susoy, Fatema T. Ali, Duygu Şen Baykal, H. Zakaly, S. Issa, Antoaneta Ene   +8 more
semanticscholar   +1 more source

Spread of Gamma (P.1) Sub-Lineages Carrying Spike Mutations Close to the Furin Cleavage Site and Deletions in the N-Terminal Domain Drives Ongoing Transmission of SARS-CoV-2 in Amazonas, Brazil

medRxiv, 2021
The continuous evolution of SARS-CoV-2 is an expected phenomenon that will continue to happen due to the high number of cases worldwide. The present study analyzed how a Variant of Concern (VOC) could still circulate in a population hardly affected by ...
F. Naveca, V. Nascimento, V. Souza, André de Lima Corado, F. Nascimento, George Silva, M. Mejía, M. J. Brandão, Ágatha Costa, D. Duarte, K. Pessoa, M. Jesus, L. Gonçalves, Cristiano Fernandes, T. Mattos, L. Abdalla, João Hugo Abdalla Santos, A. Martins, Fabíola Mendonça da Silva Chui, Fernando Val, G. D. de Melo, M. Xavier, Vanderson de Souza Sampaio, M. Mourão, M. Lacerda, Érika Lopes Rocha Batista, A. L. A. Magalhães, Nathânia Dábilla, Lucas Carlos Gomes Pereira, F. Vinhal, F. Miyajima, Fernando B S Dias, Eduardo Ruback dos Santos, Danilo F. Coêlho, M. Ferraz, R. Lins, G. Wallau, E. Delatorre, Tiago Gräf, M. Siqueira, P. Resende, G. Bello   +41 more
semanticscholar   +1 more source

Effectiveness of the ChAdOx1 vaccine in the elderly during SARS-CoV-2 Gamma variant transmission in Brazil

medRxiv, 2021
Background A two-dose regimen of ChAdOx1 coronavirus disease 19 (Covid-19) vaccine with an inter-dose interval of three months has been implemented in many countries with restricted vaccine supply. However, there is limited evidence for the effectiveness
M. Hitchings, O. Ranzani, M. Dorión, T. D’Agostini, R. D. de Paula, O. F. P. de Paula, E. Villela, M. S. S. Torres, S. D. de Oliveira, W. Schulz, M. Almiron, R. Said, R. D. de Oliveira, P. V. da Silva, W. N. de Araújo, J. C. Gorinchteyn, J. Andrews, D. Cummings, A. Ko, J. Croda   +19 more
semanticscholar   +1 more source