Results 61 to 70 of about 206,755 (328)

Multiphysics Numerical Simulation of the Transient Forming Mechanism of Magnetic Pulse Welding

open access: yesMetals, 2022
Magnetic pulse welding (MPW) is widely used in the connection of dissimilar metals. The welding process involves the coupling of the electromagnetic field and structural field, which is a high-energy transient forming process.
Yan Li   +4 more
doaj   +1 more source

Wafer Bonding Technologies for Microelectromechanical Systems and 3D ICs: Advances, Challenges, and Trends

open access: yesAdvanced Engineering Materials, EarlyView.
This review explores wafer bonding technologies, covering wafer preparation, activation methods, and bonding mechanisms. It compares direct and indirect bonding, highlights recent advancements and future trends, and examines applications in 3D integration and packaging.
Abdul Ahad Khan   +5 more
wiley   +1 more source

Study of micro electromagnetic bulging on a stainless steel foil

open access: yesManufacturing Review, 2015
Electromagnetic micro-forming is a novel technology of micro-fabrication with high-energy rate which shows superiority in fabricating shallow and concave parts. In the research reported in this paper, micro electromagnetic bulging process was carried out
Zhao Qing-juan   +4 more
doaj   +1 more source

Effect of the Duration of Electromagnetic Pulse Force on the Rebound Suppression in V-Bending Experiment [PDF]

open access: yes, 2014
Electromagnetic Forming (EMF) is one of the high speed forming technologies. The spatial distribution and temporal evolution of electromagnetic body force and the constraint imposed by the die on the sheet metal, are key factors which influence the ...
Pan, Long   +3 more
core  

Large Area, Cost‐Effective, and Ultra‐Fast Fabrication of Mini‐Coils Toward Noninvasive Magnetic Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A simple, cleanroom‐free method produces flexible mini‐coils using automated blade cutting. The process is fast, low‐cost, and supports diverse materials. The coils show strong durability and performance under repeated bending. Demonstrated use in resistor‐inductor filters and magnetic nanoparticle control proves their adaptability.
Changhao Ge   +5 more
wiley   +1 more source

Programmable Reconfiguration of Hybrid 4D Chiral Metamaterials via Mechanical and Thermal Stimuli

open access: yesAdvanced Engineering Materials, EarlyView.
A class of hybrid chiral mechanical metamaterials is designed to achieve programmable reconfiguration through soft networks, hinges, and bilayer joints integrated with rigid units. Responsive to mechanical and thermal stimuli, these structures exhibit large volume changes, tunable deformation pathways, and both positive and negative thermal expansion ...
Yunyao Jiang, Siyao Liu, Yaning Li
wiley   +1 more source

Study of Electromagnetic Forming of Cylindrical Workpieces Based on Equivalent Electrical Circuit [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2008
Electromagnetic forming is a method ofmetal working by plastic deformation, under theaction of forces acting on the conductor in a rapidlyvarying magnetic field obtained by discharging abattery of condensers through a forming coil.
Paşca Sorin, Tomşe Marin
doaj  

Optical beam forming for phased-array antennas [PDF]

open access: yes, 2007
The activities of the Telecommunication Engineering (TE) group span the communications spectrum from copper cables, optical fibres, microwaves, radio and electromagnetic compatibility.
Borreman, A.   +6 more
core   +2 more sources

The Kerr theorem and multiparticle Kerr-Schild solutions

open access: yes, 2005
We discuss and prove an extended version of the Kerr theorem which allows one to construct exact solutions of the Einstein-Maxwell field equations from a holomorphic generating function $F$ of twistor variables.
ALEXANDER BURINSKII   +9 more
core   +1 more source

Joule‐Assisted Nanotherapeutic Urethral Stent (JANUS) for Spatiotemporal Theragenerative Treatment of Urethral Strictures

open access: yesAdvanced Functional Materials, EarlyView.
Joule‐assisted nanotherapeutic urethral stent harnesses a smart, biodegradable magnesium stent to orchestrate spatiotemporal theragenerative therapy for urethral strictures. Magnetically induced Joule heating enables on‐demand drug release and bacterial ablation, while simultaneously guiding urothelial regeneration.
Yuhyun Na   +15 more
wiley   +1 more source

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