Results 21 to 30 of about 497,213 (338)

Assessment of the Usability of a Composite Containing Boron Carbide for Shielding the Gamma Rays

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2023
Considering the negative effects on the environment and toxicity of lead, which has been widely used for gamma shielding for a long time in nuclear technology, studies have been focused on the development of various materials that can be used as an ...
Urkiye Akar Tarım
doaj   +1 more source

Radiation protection performance and positron lifetime of nano Y2O3/epoxy resin composites

He jishu, 2022
BackgroundTraditional shielding X/γ ray materials are generally lead or lead containing materials, which have the disadvantages of high toxicity, heavy weight, difficult molding and high price.
ZHENG Yulong, PAN Xinyi, XIONG Houhua, ZENG Zhengkui, DU Jifu, CHEN Zhiyuan   +5 more
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Tailoring a symmetry for material properties of tellurite glasses through tungsten(vi) oxide addition: Mechanical properties and gamma-ray transmissions properties

Applied Rheology, 2023
We report a correlation outcome for mechanical and gamma-ray transmission properties of tellurite glasses by increasing tungsten(vi) oxide concentration in glass structure.
ALMisned Ghada, Khattari Ziad Y., Rabaa Elaf, Rammah Yasser S., Sen Baykal Duygu, Kilic Gokhan, Zakaly Hesham M. H., Ene Antoaneta, Tekin Huseyin Ozan   +8 more
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An evaluation of weld metal nitrogen retention and properties in 316NL austenitic stainless steel [PDF]

, 2011
A series of tests were conducted using varying levels of nitrogen and helium in a conventional argon shielding gas when welding 316LN austenitic stainless steel. The outcome was that a 15 per cent nitrogen addition to the argon shielding gas had the most
Baker, Thomas, Galloway, Alexander, McPherson, Norman   +2 more
core   +1 more source

Percepciones de personas económicamente activas obligadas a realizar trabajo remoto durante la pandemia de COVID-19 por tener una comorbilidad: estudio cualitativo

Revista del Hospital Italiano de Buenos Aires, 2022
Introducción: la probabilidad de presentar una forma grave de COVID-19 es mayor en personas con algunas condiciones preexistentes. En la Argentina, las personas con alguna de estas comorbilidades realizaron un trabajo remoto y diferenciado respecto de ...
Mariano Granero, María Viti, Malena Colombo, Natalia Mozeluk, Sergio Terrasa   +4 more
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Impact of WO3 and BaO nanoparticles on the radiation shielding characteristics of polydimethylsiloxane composites

e-Polymers, 2023
In this study, we developed flexible composites using silicone rubber (SR) or polydimethylsiloxane as the matrix and WO3 and BaO nanoparticles as filler to analyze their radiation-shielding performance. The linear attenuation coefficient (LAC) values for
Alorain Dalal A., Almuqrin Aljawhara H., Sayyed M. I., Elsafi Mohamed   +3 more
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Analysis of Coil Parameters and Comparison of Circular, Rectangular, and Hexagonal Coils Used in WPT System for Electric Vehicle Charging

World Electric Vehicle Journal, 2021
In this paper, the major factors that affect the performance of wireless power transfer systems, such as coil inner radius and coil number of turns, are discussed.
Tasnime Bouanou, Hassan El Fadil, Abdellah Lassioui, Ouidad Assaddiki, Sara Njili   +4 more
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Gravitational Shielding Effects in Gauge Theory of Gravity

, 2003
In 1992, E.E.Podkletnov and R.Nieminen find that, under certain conditions, ceramic superconductor with composite structure has revealed weak shielding properties against gravitational force. In classical Newton's theory of gravity and even in Einstein's
Wu, Ning
core   +1 more source

Uncertainty quantification and sensitivity analysis of a nuclear thermal propulsion reactor startup sequence

Frontiers in Nuclear Engineering
The research presented in this article describes progress in applying stochastic methods, uncertainty quantification, parametric studies, and variance-based sensitivity analysis (also known as Sobol sensitivity analysis) to a full-core model of a nuclear
Jackson R. Harter, Mark D. DeHart
doaj   +1 more source

Suppression of intrinsic neutron background in the Multi-Grid detector

, 2018
One of the key requirements for neutron scattering instruments is the Signal-to-Background ratio (SBR). This is as well a design driving requirement for many instruments at the European Spallation Source (ESS), which aspires to be the brightest neutron ...
Dian, E., Hall-Wilton, R., Kanaki, K., Khaplanov, A., Kittelmann, T., Zagyvai, P.   +5 more
core   +1 more source