Results 121 to 130 of about 225,989 (345)

Effects of NonUniform Copper Shielding Thickness on End Leakage Flux and Temperature Rise in Turbogenerators

IET Electric Power Applications
Magnetic flux leakage and excessive heating at the generator end are significant challenges in large steam turbine design. Copper shielding is an effective strategy to reduce end‐region magnetic losses and enhance heat dissipation. However, under leading
Yonggang Li, Tianyu Yao, Yongtao Liu, Xuan Ji, Minghan Ma   +4 more
doaj   +1 more source

Gamma radiation shielding and interaction properties of MoO3-Doped cadmium zinc lithium-borate glasses

Nuclear Engineering and Technology
This study, theoretically examined the impact of MoO3 addition on gamma radiation shielding properties of cadmium zinc lithium-borate (BCZLMx) glasses to find the optimal quantity of molybdenum oxide (MoO3) needed for a stable glass matrix with excellent
M.S. Al-Buriahi, E.O. Echeweozo, Chahkrit Sriwunkum, Norah Alomayrah, Jamila S. Alzahrani   +4 more
doaj   +1 more source

Identifying factors associated with successful implementation and uptake of an evidence-based voluntary medical male circumcision program in Zambia: the Spear and Shield 2 Program [PDF]

, 2019
Violeta J. Rodriguez, Antonio Chahine, Aileen de la Rosa, Tae Kyoung Lee, Nicholas V. Cristofari, Deborah L. Jones, Robert Zulu, Ndashi Chitalu, Stephen M. Weiss   +8 more
openalex   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

Advanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut, Pierre Le Berre, Hamdi Jaballah, Lukas Fink, Victor Poline, Richard Haettel, Stéphane Grenier, Gilbert Chahine, Ewen Bellec, Guillaume Buatier, Wilfried Hortschitz, Santa Pile, Thomas Schrefl, Nils Blanc, Yuan Hong, Thibaut Devillers, Nora M. Dempsey   +16 more
wiley   +1 more source

Perceived Workload Using Separate (FFP2 Respirator and Face Shield) and Integrated (Powered Air Purifying Respirator) Personal Protective Equipment for Respiratory Protection: Human Factors Randomized Cross-over Feasibility Protocol (Preprint)

, 2022
Amy Price, Larry F. Chu, Ying Lin, Anna S. Levin, Fabio Tumetto, Rodrigo Maximiano Antunes de Almeida, Ana Paula Siqueira Silva de Almeida, Caroline Lopes Ciofi-Silva, Luca Fontana, Naila Albertina de Oliveira, Nicola Francesco Parisi, Giulia Marcelino Mainardi, Luciana Cordeiro, Marco Roselli, Paul Shepherd, Luana Morelli, Najmeh Mehrabi, Kathleen J. Price, Whitney Chan, Shrinidhy Srinivas, May Chu, Maria Clara Padoveze   +21 more
openalex   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva, Aman Kaushik, Afsaneh Rabiei   +2 more
wiley   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Evaluation of the Stress-Shielding Effect of a PEEK Knee Prosthesis. A Finite Element Study

Osteology
Background: The long-term success of total knee arthroplasty (TKA) is often compromised by stress shielding, which can lead to bone resorption and even implant loosening.
Mario Ceddia, Arcangelo Morizio, Giuseppe Solarino, Bartolomeo Trentadue   +3 more
doaj   +1 more source

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

Advanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari, Gokul Bhaskaran, Krishan Kumar, Yun Suk Huh, Young‐Kyu Han   +4 more
wiley   +1 more source