Results 141 to 150 of about 55,523 (269)

Laser Welding in Space [PDF]

Solidification type welding process experiments in conditions of microgravity were performed. The role of convection in such phenomena was examined and convective effects in the small volumes obtained in the laser weld zone were observed.
Kaukler, William F., Workman, Gary L.
core   +1 more source

Mobile electromagnetic levitator for time‐resolved in situ X‐ray diffraction studies of high‐temperature phase transformations

Journal of Synchrotron Radiation, EarlyView.
A mobile electromagnetic levitator combined with time‐resolved synchrotron X‐ray diffraction enables in situ studies of high‐temperature phase transformations without container‐induced contamination and reveals the first direct observation of metastable phase formation in undercooled Fe–Co alloys.In situ observations of high‐temperature transformations,
Olga Shuleshova, Ivan Kaban, Steffen Ziller, Uwe Reinhold, Ann-Christin Dippel, Olof Gutowski, Martin von Zimmermann   +6 more
wiley   +1 more source

Can prisons move people into better jobs? A look at correctional vocational training programs and sectoral employment outcomes

Criminology, EarlyView.
Abstract Three‐quarters of US prisons offer vocational training programs, which aim to place trainees in middle‐skills jobs in specific occupational sectors post‐release. These middle‐skills jobs may more effectively reduce recidivism than the jobs that normally characterize the labor market experience of the formerly incarcerated, yet whether ...
Britte van Tiem
wiley   +1 more source

Influence of welding speed on the microstructure and mechanical properties of CMT+P WAAM-based 205C aluminum alloy

Reviews on Advanced Materials Science
To address the limited understanding of the influence of different welding speeds on the performance of thin-walled 205C aluminum alloy components fabricated via CMT+P dual-pass forming, a single-variable comparative study was conducted within the speed ...
Wang Zekai, Yin Peng, Wang Lin, Li Chengde, Hao Tingting, Ming Zhu   +5 more
doaj   +1 more source

Identification of Autologous Tissue Sources and Optimization of a Treatment Method for Intraoperative Manufacturing of Heart Valve Constructs

Artificial Organs, EarlyView.
The use of autologous connective tissue, such as pericardium or peritoneum, combined with controlled tissue treatment, has the potential to result in a more durable heart valve prosthesis than current commercial prostheses. ABSTRACT Introduction Valvular heart disease remains a leading cause of morbidity and mortality. Current biological and mechanical
Marvin Steitz, Mahamuda Badhon Khan, Katharina Fritsch, Alexander Breitenstein‐Attach, Jana Katharina Betty Korbacher, Jordi Joaquin Modolell Y Mainou, Katrin Schrimpf, Robert Ramm, Sara Knigge, Katja Eildermann, Georg Arlt, Antonia Schulz, Jonathan Frederik Sebastian Kiekenap, Boris Warnack, Peter Kramer, Frank Edelmann, Felix Berger, Boris Schmitt   +17 more
wiley   +1 more source

Simulation and analysis of fatigue life for FSW welded joints of 7075 aluminum alloy

Hanjie xuebao
Process parameters affect the temperature field and stress field of friction stir welding (FSW) welded joints, thereby affecting their fatigue performance.
Chao LIU, Jiangtao WANG, Li XIE, Rui QIU, Yongkang ZHANG, Kejun HU, Carlo. Massimo. CASCIOLA   +6 more
doaj   +1 more source

Mobile Work: Handcart and Bicycle Workers Across the Urban Economy of Greater Accra Region

Area, EarlyView.
Short Abstract This article explores the role of handcart and bicycle workers—mobile workers—in the urban economy of Accra and Tema, Ghana. Drawing on qualitative fieldwork, it shows how their practices of food vending, e‐waste collection and mobile trade exemplify a form of relational infrastructure that sustains urban life through improvisation ...
Kauê Lopes dos Santos, Livia Cangiano Antipon   +1 more
wiley   +1 more source

Establishment of an MRI‐Based Diagnostic Approach to Identify Critical Pulpal Inflammation Zones in a Rat Caries‐Derived Pulpitis Model

International Endodontic Journal, EarlyView.
ABSTRACT Aim To establish a magnetic resonance imaging (MRI)‐based diagnostic approach for identifying ‘critical pulpal inflammation’ zones in a rat model of caries‐derived pulpitis. Methodology Caries‐derived pulpitis was induced in the molars of Sprague–Dawley rats using the caries‐derived pulpitis model.
Kiichi Moriyama, Motoki Okamoto, Masakatsu Watanabe, Hailing Huang, Koki Nakatani, Shigeyoshi Saito, Yusuke Takahashi, Mikako Hayashi   +7 more
wiley   +1 more source

Production status of GaAs/Ge solar cells and panels [PDF]

GaAs/Ge solar cells with lot average efficiencies in excess of 18 percent were produced by MOCVD growth techniques. A description of the cell, its performance and the production facility are discussed.
Gillanders, M., Lillington, D., Rolph, R., Smith, B., Vijayakumar, P., Yang, H.   +5 more
core   +1 more source

The Support Paradox: Explaining (Mis)Matches in Refugee Workplace Support

Journal of Management Studies, EarlyView.
Abstract Recent refugee movements have spurred corporate initiatives, with workplace support proving critical for integration. However, while research on workplace support for refugees remains limited, the broader support literature highlights paradoxical effects – support either benefits or harms recipients depending on how well it matches their needs.
Robin Pesch, Ebru Ipek
wiley   +1 more source