Results 221 to 230 of about 1,373,848 (355)

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

open access: yesDeep Underground Science and Engineering, EarlyView.
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza   +3 more
wiley   +1 more source

Characterization of heat-treated gas metal arc-welded boron steel sheets

open access: yes, 2018
K. I. Yaakob   +4 more
semanticscholar   +1 more source

Random finite element analysis on ground subsidence caused by tunnel excavation in karst regions with spatial variable soil

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigates ground subsidence during tunnel excavation in karst areas, highlighting the combined effects of karst cave proximity, cave size, and soil spatial variability. Findings suggest that shorter cave distances and larger cave sizes increase subsidence variability, and a modified Peck formula is proposed for more accurate subsidence ...
Zhenghong Su   +4 more
wiley   +1 more source

Versatile Biomass Hydrogel Electrolyte for Supercapacitors: Exceptional Water Retention, Robust Adhesion, Subzero Self‐Healing, and All‐Climate Cycling Stability

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The PSBGD‐Li hydrogel electrolyte, synthesized via dynamic crosslinking of peach gum polysaccharide and starch, resolves critical issues: easy dehydration, narrow temperature tolerance, poor interfacial adhesion, and mechanical irreparability.
Nannan Zhu   +6 more
wiley   +1 more source

Harnessing Piezoelectric Biomaterials for Pathogenic Eradication and Tissue Regeneration

open access: yesExploration, EarlyView.
This review highlights recent advances in piezoelectric biomaterials for antibacterial therapy and tissue regeneration, discussing material classifications, catalytic mechanisms, property enhancements, biomedical applications, and future challenges in clinical translation.
Wenxuan Mao   +11 more
wiley   +1 more source

Wear Performance of a Physical Vapour Deposition-Coated, Spark Plasma Sintered TiB<sub>2</sub>/Ti Composite Lubricated with Externally Introduced hBN at Temperatures up to 900 °C. [PDF]

open access: yesMaterials (Basel)
Michalczewski R   +9 more
europepmc   +1 more source

An Analogue Memristor Based on Conjugated Porous Polymer Composite for Artificial Synapse

open access: yesExploration, EarlyView.
The conjugated porous polymers integrated with boron‐doped carbon dots form a composite for organic memristor in an artificial synapse. The memristor shows analog‐type resistive switching behavior under ultraviolet irradiation, which is attributed to photoinduced redox.
Haotian Hao   +12 more
wiley   +1 more source

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