Results 191 to 200 of about 5,294 (263)

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Numerical research on anti‐dislocation measures design of deep‐buried tunnels in an anisotropic rock mass area

open access: yesDeep Underground Science and Engineering, EarlyView.
This paper conducts a numerical simulation study on the construction of a deep‐buried tunnel in an anisotropic stratum area. A statistical analysis of the effects of two anti‐faulting design measures, namely, a conventional design and an articulated design, is carried out, and the results demonstrate the effectiveness of the anti‐faulting structures ...
Shiqi Liu   +3 more
wiley   +1 more source

Wear Behavior and Multi-Technique Characterization of 3D Printed TPU Under Simulated Pharmaceutical Operating Conditions. [PDF]

open access: yesPolymers (Basel)
Stoica M   +7 more
europepmc   +1 more source

100% Selective Photoreduction of CO2 to CO on a Macroscopic CuO/Au/g‐C3N4 Film Enabled by Synergistic Photothermal and p‐n Heterojunction Effects

open access: yesEcoEnergy, EarlyView.
In this paper, a novel CuO/Au/g‐C3N4 film catalyst achieved ≈ 100% selective CO2 photoreduction to CO via synergistic photothermal and p‐n heterojunction effects. ABSTRACT Steering product selectivity is a paramount challenge in CO2 photoreduction. Herein, a series of macroscopic p‐n heterojunction photocatalysts, composed of the g‐C3N4 shell coated on
Wenwen Li   +7 more
wiley   +1 more source

Comparative Study of Nanofiller-Reinforced Orthophthalic Polyester Composites: Mechanical, Surface, Tribological and Environmental Performance. [PDF]

open access: yesMaterials (Basel)
Stępka D   +8 more
europepmc   +1 more source

Flexible Phase Change Bandage Incorporated With Zeolite for Temperature‐Controlled Wound Hemostasis

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A novel flexible hemostatic phase change bandage (HPB) was designed and constructed through chemical cross‐linking and electrospinning to mitigate thermal injury and broaden the application of PCMs in the medical field. Furthermore, the flexible HPB shows thermal stability, strong mechanical strength, excellent infiltration, and reliable thermal ...
Xinyu Zhang   +8 more
wiley   +1 more source

Helium spin-echo as a surface-sensitive probe of vibrational energy dissipation.

open access: yesFaraday Discuss
Tamtögl A   +5 more
europepmc   +1 more source

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