Results 191 to 200 of about 13,495 (286)

Overdamping of vibration resonances by liquid crystal elastomers. [PDF]

Sci Rep
Elmadih W, Terentjev A, Liang HL, Terentjev E.   +3 more
europepmc   +2 more sources

Static and Dynamic Performance of Long-Span Suspension Bridges with Flexible CFRP Central Buckles. [PDF]

Polymers (Basel)
Wang M, Zhang T, Yang H, Zhu Y, Liu B, Liu Y.   +5 more
europepmc   +1 more source

Static and Dynamic Analysis of Porous Gas Bearings Lubricated With Air, Refrigerant R‐134a, Helium and Hydrogen

Lubrication Science, EarlyView.
ABSTRACT Porous gas bearings (PGBs) enable high‐speed, oil‐free operation in modern rotating machinery. This study develops a coupled thermo‐hydrodynamic (THD) model for a cylindrical porous gas bearing lubricated with four working fluids—air, R‐134a, helium and hydrogen.
S. Bechiri, B. Bouchehit, B. Bou‐Saïd
wiley   +1 more source

Advanced seismic resilient performance of steel MRF equipped with viscoelastic friction dampers. [PDF]

Sci Rep
Bae J, Huang X, Zhang Z.
europepmc   +1 more source

Polymerized Pro‐Estrogen Microneedles via Two Photon Polymerization

Macromolecular Rapid Communications, EarlyView.
Acrylic pro‐drugs of 17β‐estradiol were subjected to spatially controlled two‐photon polymerization to create bespoke microneedle geometries with potential biomedical applications for long‐term transdermal hormone delivery. ABSTRACT Two‐photon polymerization (TPP) is a powerful technique to create microscale structures with high precision, offering ...
Yang Lou, John T. Leman, Harper Serringer, Ke Xia, Christopher N. LaFratta, Chaitanya Ullal, Edmund F. Palermo   +6 more
wiley   +1 more source

Establishing thresholds for swing transparency at the knee during gait to inform exoskeleton design. [PDF]

PLoS One
Mathews CW, Clawson DA, Zelik KE.
europepmc   +1 more source

Recent Advances in Conductive Rubber Composites: Progress, Challenges, and Emerging Opportunities

Macromolecular Rapid Communications, EarlyView.
This study reviews the recent advances in conductive rubber composites, focusing on key aspects such as material selection, conductive mechanisms, interfacial engineering, processing methods, vulcanization strategies, and practical applications. It also discusses current challenges and highlights emerging directions that are shaping the development of ...
Lu Yin, Ali Vahidifar, Steven Yu, Boxin Zhao   +3 more
wiley   +1 more source

The mechanics of the squash nick shot. [PDF]

Proc Natl Acad Sci U S A
Ravisankar M, Federle ME, Bahadori M, Das A, Kesari H, Zenit R.   +5 more
europepmc   +1 more source

From Stability to Chaos: A Complete Classification of the Damped Klein‐Gordon Dynamics

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We investigate the transition between stability and chaos in the damped Klein‐Gordon equation, a fundamental model for wave propagation and energy dissipation. Using semigroup methods and spectral criteria, we derive explicit thresholds that determine when the system exhibits asymptotic stability and when it displays strong chaotic dynamics ...
Carlos Lizama, Marina Murillo‐Arcila, Julio Puerta‐Fernández   +2 more
wiley   +1 more source

Shaking table test on seismic performance of a large-span high-rise building. [PDF]

Sci Rep
Sun L, Bai Y, Lai Z.
europepmc   +1 more source