Results 111 to 120 of about 5,588 (284)
Mechanically origami‐coded 3D kirigami photovoltaics convert a single extension–release cycle into deterministic self‐folding, reconfiguring planar solar cells into programmable 3D modules. Distinct coding strategies enable either ultrahigh stretchability (500% system strain) or ultrahigh initial effective areal coverage (225%).
Seok Joon Hwang +15 more
wiley +1 more source
Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández +15 more
wiley +1 more source
A Methodology for Measuring Actual Mesh Stiffness in Gear Pairs
The measurement of the meshing stiffness in gear pairs is a technological problem. Many studies have been conducted, but a few results are available. A tailored test bench was designed and realized to measure the Static Transmission Error in two mating gears to address this issue.
Rosso, Carlo +3 more
openaire +2 more sources
Modeling of Spur Gear Meshing Characteristics under Various Crack Size [PDF]
This report focused on the study of gear defect based on the gear meshing stiffness variation. The main objective of this study is to investigate the gear defect by modeling the gear based on the gear material and gear parameter.
Sofuan Najen Bin Othman, Sofuan Najen Bin Othman
core
We address the inherently weak particle adhesion of conventional air filters by coating a dynamically crosslinked adhesive layer that delivers capillarity‐driven strong adhesion and particle absorption mediated by dynamic bond exchange. The resulting enhancement in particle adhesion enables efficient ultrafast (up to 20 m s−1) and omnidirectional ...
Junyong Park +11 more
wiley +1 more source
Weaving Intelligence: Thermally Drawn Multimaterial Fibers Toward AI‐Enabled Smart Textiles
Thermally drawn multimaterial fibers are rapidly advancing as intelligent structural units for next‐generation smart textiles. Integrating multimaterial architectures with neuromorphic and spiking‐neural‐network principles enables fabrics that can sense, compute, and adapt autonomously.
Vuong Dinh Trung +9 more
wiley +1 more source
Research of the Torsion Stiffness of Involute Gear Transmission
The gear stiffness calculation has important significance for the study of noise and vibration of power transmission system. Based on the finite element calculation of the software Abaqus,the torsional mesh stiffness of spur gear with involute profile is
Zhou Xin +3 more
doaj
Research of Internal Excitation of Helical Gear Meshing Transmission
The internal excitation of gear meshing transmission is the key factor that causes gear vibration and noise. Taking a pair of constant meshing helical gears in an 8-speed automatic transmission as the research object,the internal excitation of meshing ...
Yue Huijun +3 more
core +1 more source
A double‐sided mechanical interlocking strategy is developed to create robust electrical contact between polymer electrode and metal interconnect. The fibrous structure enables formation of thread–hole adhesion, which only breaks under bulk failure and achieves a record high interfacial energy exceeding 730 J·m−2. This adhesion secures the integrity of
Gang Li +6 more
wiley +1 more source
The mesh stiffness curve of spur gear at any meshing phase.
The mesh stiffness curve of spur gear at any meshing phase.
Bin Li (39349) +4 more
core +1 more source

