Results 211 to 220 of about 70,920 (305)

Study on the limestone fracturing characteristics of PDC cutters in high-temperature environments. [PDF]

Sci Prog
Liu T, Ren X, Ren S, Zhang C, Ren H.
europepmc   +1 more source

Shear Mechanical Properties and Damage Deterioration of Anchored Sandstone-Concrete Under Freeze-Thaw Cycles. [PDF]

Sensors (Basel)
Liu T, Zeng Q, Cai W, Cao P.
europepmc   +1 more source

Comparative Study on the Engineering Performance of Lime- and Cement-Improved Argillaceous Siltstone. [PDF]

Materials (Basel)
Chen Y, Huang F, Zhan R, Zhou M, Weng H, Yang H.   +5 more
europepmc   +1 more source

Research on the integrated technology of bearing structure reconstruction and support control in high risk area of top coal roadway in thick coal seam. [PDF]

Sci Rep
Xiaokang S, Bacha S, Heng Z, Xiaojing L, Xiaozhen C, Kai W, Hua Z.   +6 more
europepmc   +1 more source

Scaling laws for rockfall impact fragmentation emerging from diverse lithologies. [PDF]

Sci Rep
Vergara Á, Palma S, Fuentes R.
europepmc   +1 more source

Predicting the uniaxial compressive strength and elasticity modulus of sandstones from physical and mechanical properties using statistical analyses and artificial intelligence-based techniques. [PDF]

PLoS One
Fereidooni D, Hejazifar M.
europepmc   +1 more source

Macro-Meso Damage Mechanism of Sandstone Under Wet-Dry Cycles: A Study Based on Nuclear Magnetic Resonance Technology. [PDF]

Materials (Basel)
Wei Y, Niu F, Zhu S, Zhang J.
europepmc   +1 more source

Optimized Selenium‐Doped Nanocomposites for Enhanced Polymer Gel Performance in Permeability Reduction

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Excessive water production in mature oil fields necessitates robust shut‐off treatments, yet conventional polymer gels often fail under high‐temperature and high‐salinity conditions. This study aims to enhance gel thermal stability and mechanical strength by incorporating selenium‐doped Ag/AgO–ZnO nanocomposites synthesized via a novel green ...
Fadhil F. Sead, Farag M. A. Altalbawy, M. Sudhakara Reddy, Badri Narayan Sahu, Sridharan Sundharam, Sanjeev Kumar, Atreyi Pramanik, Aseel Smerat, Fatimah Pashtun   +8 more
wiley   +1 more source

Research on numerical simulation of surrounding rock stability of deep roadway with advanced strain softening model based on Hoek-Brown criterion. [PDF]

Sci Rep
Wang R, Wu R, Xu J, Wu H, Wang K.
europepmc   +1 more source

Preparation and Performance Evaluation of a Self‐Generated Particle Plugging Agent Based on Thermosetting Resin

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT A thermosetting in situ curing resin microsphere system has been developed. It has controllable phase transition time and particle size. This system addresses the current challenges of low strength, shear susceptibility, and short phase transition time in polymer microsphere blockers and thermoplastic particle blockers.
Baolei Jiao, Lifeng Chen, Minghao Xue, Xuemin Yan, Jiamin Zhang, Feifan Liu   +5 more
wiley   +1 more source