Results 71 to 80 of about 222,323 (280)

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

Advanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen, Anastasiya Toenjes, Annika Bohlen, Thomas Seefeld   +3 more
wiley   +1 more source

Radiation shielding properties of polycarbonate/poly (methyle methacrylate) polymer blends comprising cobalt tin sulphide, zinc molybdate, and copper cobaltite oxide composites in photon beams [PDF]

Nuclear Technology and Radiation Protection
The present study focuses on the calculation of selected shielding parameters of polycarbonate/poly(methyl methacrylate), polycarbonate/poly (methyl methacrylate)/cobalt tin sulphide, polycarbonate/poly(methyl methacrylate)/zinc molybdate, and ...
Alsufyani Sultan J., Algethami Merfat, Barakat Mai M.E., Nouh Abdallah S., Nouh Samir A., Gouda Mona M.   +5 more
doaj   +1 more source

Nano tin oxide/dimethyl polysiloxane reinforced composite as a flexible radiation protecting material

Scientific Reports, 2023
Reinforced polymer composites are a recent type of advanced shielding material that has been studied experimentally and theoretically. This work described the protection properties of silicon rubber filled with nano and micro tin oxide (II).
Mona M. Gouda, Mahmoud I. Abbas, Sabbah I. Hammoury, Kareman Zard, Ahmed M.El-Khatib   +4 more
doaj   +1 more source

An Experimental Investigation of the use of Q-Factor to Determine the Shielding Effectiveness of Electrically Large Equipment Enclosures with Apertures [PDF]

, 2011
The current method of obtaining a Shielding Effectiveness (SE) measurement involves field measurements both inside and outside the enclosure to be tested. In this paper, a relationship between the Shielding Effectiveness and the Q-factor of the enclosure
Armstrong, Robert, Dawson, John Frederick, Marvin, Andy   +2 more
core  

Suppression of HD-cooling in protogalactic gas clouds by Lyman-Werner radiation

, 2010
It has been shown that HD molecules can form efficiently in metal-free gas collapsing into massive protogalactic halos at high redshift. The resulting radiative cooling by HD can lower the gas temperature to that of the cosmic microwave background, T_CMB=
Abel, Abgrall, Abgrall, Abgrall, Abgrall, Abgrall, Biermann, Birnboim, Bromm, Bromm, Bromm, Clark, Dabrowski, Dalgarno, Dijkstra, Dijkstra, Draine, Fernandez, Galli, Galli, Glover, Glover, Glover, Glover, Glover, Glover, Haiman, Haiman, Haiman, Haiman, Hansen, Heger, J. Wolcott-Green, Jasche, Johnson, Johnson, Kirkman, Komatsu, Kreckel, Kuhlen, Lipovka, Machida, McGreer, Nagakura, Nakamura, O'Meara, Oh, Oh, Omukai, Omukai, Ripamonti, Ripamonti, Savin, Savin, Schaerer, Shang, Shapiro, Shchekinov, Shchekinov, Stacy, Stasielak, Stenrup, Susa, Tan, Tumlinson, Uehara, Vasiliev, Whalen, Yoshida, Yoshida, Yoshida, Z. Haiman   +71 more
core   +1 more source

Radiation environment for rendezvous and docking with nuclear rockets [PDF]

, 1972
Radiation environment data for the NERVA engine are provided which may be utilized in estimating radiation exposures associated with various space maneuvers.
Lindsey, B. A., Rogers, D. R., Warman, E. A.   +2 more
core   +2 more sources

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

Status report of the CERN microwave axion experiment [PDF]

, 2013
"Light Shining Through the Wall" experiments can probe the existence of "axion like particles" through their weak coupling to photons. We have adapted such an experiment to the microwave regime and constructed the table top apparatus.
Betz, M., Caspers, F., Gasior, M.
core   +1 more source

Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding

Advanced Engineering Materials, EarlyView.
This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou, Mohammed Benwadih, Arnaud Gabas, Lina Kadura, Minh‐Quyen Le, Daniel Grinberg, Pierre‐Jean Cottinet   +6 more
wiley   +1 more source

Inflammatory Response‐Inspired Thermochromic Shield for Pneumatic Structures

Advanced Engineering Materials, EarlyView.
A thermochromic shield for pneumatic structures is developed, using anhydrous sodium acetate powder and thermochromic pigment‐included solution. In this shield composed of three layers, the exothermic and thermochromic reactions, followed by the mixture of both components, occur promptly with an incident of penetrating damage as a sign of initial ...
Hyun Jae Lee, Ryuma Niiyama
wiley   +1 more source