Results 181 to 190 of about 9,727 (308)

Computational and Experimental Modeling of Interfaces and Joints in Advanced Materials. [PDF]

Materials (Basel)
Grzejda R.
europepmc   +1 more source

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, Xiaoyue Kang, Dan Yuan, Nam‐Trung Nguyen, Jun Zhang   +4 more
wiley   +1 more source

Transient Contact Elastic-Plastic Characteristics Analysis of Rail Welded Joints in Heavy-Haul Railways. [PDF]

Materials (Basel)
Liu C, Wang Z.
europepmc   +1 more source

Efficient Harvesting of Irregular and Low‐Frequency Mechanical Energy via Hybridized Electromagnetic‐Triboelectric Systems

Small, EarlyView.
ABSTRACT The rapid expansion of the Internet of Things (IoT) and wearable electronics necessitates sustainable power sources to replace the limited electrochemical battery. While mechanical energy harvesting offers a promising solution, traditional harvesters face challenges of irregular and low−frequency environmental sources. This review presents the
Yongbin Han, Ju‐Hyuck Lee, Hong‐Joon Yoon   +2 more
wiley   +1 more source

Research Progress on the Influence of Surface Treatment Techniques on Fatigue Properties of Titanium Alloys. [PDF]

Materials (Basel)
Liu B, Zhang H, Wang X, Li Y, Li S, Cui X, Luhovskyi Y, Nong Z.   +7 more
europepmc   +1 more source

Concussed: Unintended Consequences of the Guardian Cap Mandate in the NFL

Southern Economic Journal, EarlyView.
ABSTRACT Guardian Caps are padded shells worn over American football helmets to cushion impacts and reduce concussion risks. In 2022, the NFL mandated their use for specific position groups during preseason practices, later expanding this requirement. While the league praised the Caps for enhancing player safety, skeptics argue they may promote riskier
Kerianne Lawson Rubenstein, Todd Nesbit
wiley   +1 more source

Influence of Viscous Dissipation on Wear Behavior and Hardness Evolution of Tool Steels in Glass‐Fiber‐Reinforced Polymer Processing

steel research international, EarlyView.
Tool steels tested under injection molding conditions with glass‐fiber‐reinforced polymers, revealing how viscous dissipation drives hardness loss, even in PM grades. A sharp rise in wear with increasing injection volume rate and thermomechanical load uncovers striking material differences.
David Zidar, Roman Staudigl, Walter Friesenbichler, Clemens Holzer   +3 more
wiley   +1 more source

Study on the failure mechanism and improvement measures of bearings in the full-ocean-depth ultra-high-pressure seawater pump. [PDF]

Sci Rep
Chen Z, Hu X, Li L, Ye C, Wu D, Liu S, Ma Y, Gu L.   +7 more
europepmc   +1 more source

Tailoring Microstructure and Hardness in Maraging 300 Steel via 2.4 wt.% Niobium Addition and Controlled Aging Treatments

steel research international, EarlyView.
High Nb (2.4 wt.%) addition to Maraging 300 steel drives lattice distortion and nanoscale Nb–Mo‐rich precipitation, confirmed by energy‐dispersive X‐ray spectroscopy mapping (Mo ~5.4 wt.%, Nb ~2.5 wt.%). Nanoindentation reveals strong matrix hardening (H >4.8 GPa) at 480°C aging, while 560°C induces ~1.92 vol.% reverted austenite, enabling tunable ...
Laylla Sharon B. Peixoto, Mohammad Masoumi, Luís Henrique N. de Lima, Marcos Natan da Silva Lima, Luis Flávio Gaspar Herculano, Isabel Ferreira de Barros, Geronimo Perez, Maria Vittoria Moraschini Reis, Hamilton Ferreira Gome Abreu, Marcelo J. Gomes da Silva   +9 more
wiley   +1 more source

An investigation into rail corrugation evaluation based on fractal theory and explicit finite element method. [PDF]

Sci Rep
Qian Y, Zhu H, Bai T, Wang K, Yang J, Xu J, Wang P, Ma X.   +7 more
europepmc   +1 more source