Results 141 to 150 of about 7,249 (281)
Exploiting Device Deformability for Fluid and Particle Manipulation
Small, EarlyView.Deformable devices enable fluid and particle manipulation modes that are inaccessible to rigid platforms. This review examines soft materials and architectures that translate controlled deformation into microscale fluid operations such as pumping, valving, mixing, and particle handling.
Zhiyang Hong +4 more
wiley +1 more source
Laser–Arc Welding Adaptive Model of Multi-Pre-Welding Condition Based on GA-BP Neural Network [PDF]
In large welding structures, maintaining a uniform assembly condition and machined dimension in the pre-welding groove is challenging. The assembly condition and machined dimension of the pre-welding groove significantly impact the selection of the ...
Zhaodong Zhang, Gang Song, Zesheng Wu
core +1 more source
Defects That Magnetize Beyond Monolayer PtSe2
Small, EarlyView.The presence of a complex point defect consisting of a Pt vacancy (black circle) and a PtSe antisite (red circle) revives and increases the quenched magnetism in bilayer PtSe2. Magnetic properties can be further modulated by the presence of an Se vacancy (blue circle), which can convert the ferromagnetic behavior into antiferromagnetic when it occurs ...
Ilias M. Oikonomou +7 more
wiley +1 more source
Small, EarlyView.How do the morphologies, crystal structures, and electronic properties of manganese oxides influence oxygen reaction pathways in lithium–oxygen batteries (LOBs)? This review systematically summarizes structure‐dependent catalytic mechanisms and recent engineering strategies, highlighting how defect engineering, compositional modulation, and reaction ...
Ruiqin Peng +7 more
wiley +1 more source
Small, EarlyView.The harmful ultraviolet component of sunlight necessitates reliable and wavelength‐selective personal UV monitoring technologies. Here, thermally evaporated CuBr thin films enable dual‐mode UV dosimetry through persistent photoconductive and colorimetric responses arising from charge trapping and surface oxide formation.
Suman Kundu +3 more
wiley +1 more source
Multi-pass laser welding with cut-wire particles of 50 mm thick steel plates
Journal of Alloys and Metallurgical SystemsMulti-pass laser welding with filler wire feeding shows significant potential for welding thick plates. However, this method faces challenges due to the need for edge preparation and stringent control of parameters such as wire feed speed and the ...
Mohamed Wahba +2 more
doaj +1 more source
Prospecções da natureza física da soldagem MIG automática de ligas de alumínuio [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2013Como processo de fabricação, a soldagem tem um papel de destaque dentro dos setores naval e ...
Marques, Cleber
core
steel research international, EarlyView.Laser powder bed fusion of JIS SKD61 tool steel is systematically optimized using a Taguchi design and ANOVA. Hatch spacing and layer thickness are identified as dominant parameters controlling surface roughness and tensile strength. Subsequent tempering at 600°C improves microstructural stability and mechanical performance, enabling high‐density SKD61
Masrurotin Masrurotin +4 more
wiley +1 more source
steel research international, EarlyView.Paint baking of resistance spot welded joints of 2.0 GPa warm‐stamped medium‐Mn steel activates low‐temperature tempering, forming fine cementite in the fusion zone and enhancing toughness. Crack propagation resistance increases, shifting the failure mode from partial interfacial to complete pullout, with peak load and energy absorption rising ...
Sunusi Marwana Manladan +8 more
wiley +1 more source
Journal of Advanced Joining ProcessesThis study evaluated the effects of beam control in adjustable ring mode laser-arc hybrid welding on the microstructure, porosity, and mechanical properties of a 5-mm-thick AA6N01-T5 Al alloy.
Seonghyun Kim +5 more
doaj +1 more source