Results 81 to 90 of about 25,332 (303)

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

Deep 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, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

Deep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia, Yunpeng Ji, Zhao Lu, Honghua Zhao, Limin Zhang   +4 more
wiley   +1 more source

Characterization and Properties of Copper-Silica Sand Nanoparticle Composites

, 2011
Copper-based microcomposites fabricated by powder metallurgy with subsequent plastic deformation have received increasing attention over recent years.
Tahir Ahmad, Othman Mamat
core   +1 more source

Environmental and local habitat variables as predictors of trophic interactions in subtidal rocky reefs along the SE Pacific coast

Ecography, EarlyView.
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri, Alistair G. B. Poore, Oscar Pino, Nicolás Riquelme, Wolfgang B. Stotz, Fadia Tala, Martin Thiel   +6 more
wiley   +1 more source

Investigation on Rajendra Silica Sand No. III

, 1964
This investigation was carried out to study the moulding characteristics of a silica sand received from Rajendra Silica works, Allahabad.
Sastry, P R, Gupte, P K, Bhandary, V S
core  

Phase‐Change‐Activated Slippery Organogel Composite for All‐in‐One Anti‐Corrosion, Antifouling, and Self‐Cleaning

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A super‐slippery liquid‐infused composite organogel is engineered by localized interfacial grafting between hydrogel and oleogel networks, endowing the coating with a durable, multifunctional marine‐protective interface. Dynamic antifouling surfaces have emerged as a promising alternative, offering the potential for eco‐friendly and high‐performance ...
Mengsheng Xia, Chao Wang, Jiahao Ma, Jiwei Chen, Yixi Su, Junkai Gao, Weiqi Fu   +6 more
wiley   +1 more source

Physical and Mechanical Effects of Silica Sand in Cement Mortars: Experimental and Statistical Modeling. [PDF]

Materials (Basel), 2023
Douadi A, Hebbache K, Boutlikht M, Tabchouche S, Belebchouche C, Hammouche R, Del Serrone G, Moretti L.   +7 more
europepmc   +1 more source

Optimisation of Electrokinetic Extraction System: Colourimetric Determination of Copper (II) in Sand Using Polymer Inclusion Membrane

ELECTROPHORESIS, EarlyView.
Electrokinetic extraction (EKE) allows the direct transfer of heavy metals from soli samples, such as soil and sediment, into a polymer inclusion membrane (PIM) with a colourimetric detection. This avoids length and complex sampling handling and extraction processes.
Jia Jia Seet, Spas D. Kolev, Rosanne Guijt, Hong Heng See, Fernando Maya, Mostafa A. Atia, Eddie A. Nagul, Owen P. Missen, Michael Breadmore   +8 more
wiley   +1 more source

Pre- and post-cyclic loading strength of silica-grouted sand

, 2010
The aim of this study is to investigate whether there is a loss in the strength of fine- to medium-grained colloidalsilica-grouted sand after cyclic loading.
Y. Yilmaz, M. Mollamahmutoglu, Mollamahmutoglu M., Yilmaz Y.   +3 more
core   +1 more source

Iron Energy Carrier: Experimental Characterisation, Combustion Diagnostic and Benchmarking with Other Clean Metal Fuels

Energy Science &Engineering, EarlyView.
This study investigates how iron particles burn across a wide size range, revealing late‐stage nanoparticle release and a previously unrecognised shift in combustion behaviour near 118 µm. High‐speed imaging, PMT diagnostics and SEM analyses have been conducted.
Zakaria Mansouri
wiley   +1 more source