Results 101 to 110 of about 670,391 (188)

Behavior of Injection‐Molded Nylon 6 Composites With Virgin and Field‐Exposed Waste‐Recycled Blends

Polymer Composites, EarlyView.
Recycling field‐exposed Nylon 6 composites for sustainable secondary applications. ABSTRACT Every year, more than 18,600 metric tonnes of glass fiber‐reinforced Nylon 6 composite waste from sucker rod guides used in downhole oil and gas applications are landfilled due to uncertainty about retained performance after prolonged service exposure.
Chundu Gyem Tamang, Allan Manalo, Paulomi (Polly) Burey, Wahid Ferdous, Tristan Shelley, Mayur Patel, Tony Chapman   +6 more
wiley   +1 more source

Intelligent prediction of time series and grade of rock burst in steeply inclined ultra-thick coal seam excavation roadway [PDF]

Realizing the intelligent warning of rock burst in coal mine is of great significance to ensure the safety of mine operation. Based on the intelligent classification prediction of rock burst occurrence time series in roadway of steeply inclined ultra ...
Suilin ZHANG, Chong JIA, Xingping LAI, Feng CUI, Shifeng HE, Cheng ZONG   +5 more
core   +1 more source

Reasonable Width of Coal Pillar in Gob-side Trapezoidal Roadway in Inclined Thick Coal Seam

, 2020
To explore the reasonable pillar width of roadway along goaf in inclined coal seam, theoretical analysis, numerical simulation and industrial test are combined to carry out the research.
XU Rengui, ZHAI Chunjia, LIU Limin, LI Changhao
core   +1 more source

Structural and Rheological Properties of Chitosan‐Biochar Composites Prepared With Waste Biomass‐Derived Biochar

Polymer Engineering &Science, EarlyView.
Chitosan dispersions containing biochar derived from vine pruning residue showed increasing shear stress and improved thermal stability with loading. Flow behavior was described by the Bingham plastic model in all cases. These results support the valorization of agricultural waste in functional biopolymer formulations.
Ahmet Eser, Mehmet Sadrettin Zeybek, Mertcan Öksüz, Kamil Şirin   +3 more
wiley   +1 more source

Calculation method of support working resistance for fully mechanized top-coal caving face with large mining height in extra-thick coal seam based on structural mechanics analysis of low-lying overburden

Meitan xuebao
To explore the mechanism of hydraulic support pressure and the calculation method of working resistance for super-high mining height fully mechanized top-coal caving face in extra-thick coal seam, taking the Tashan mine field in Datong mining area as the
Jun GUO, Zi WANG, Guorui FENG, Hongfei DUAN, JinWen BAI, LiRong LI, Xiaoze WEN, Wenbo HUANG, Jie ZHANG, Longlong YANG, Quan LIU, Jiahao ZHANG   +11 more
doaj   +1 more source

Foamed Concrete Sealing Materials for Coal Seam Gas Drainage Boreholes: A Review

Safety Science and Technology, EarlyView.
This study investigates the sealing performance of foamed concrete in gas drainage boreholes. By comparing leakage pathways (a, c) with sealed systems (b, d), the research demonstrates how foamed concrete effectively fills mining‐induced fractures and resists deformation.
Jiaxing Zou, Erlei Su, Huanchun Liu, Xiangjun Chen, Lin Wang, Haidong Chen, Lin Li   +6 more
wiley   +1 more source

Progress in Explosion Mechanisms and Prevention Technologies for Direct Chill Casting Aluminum Melt Upon Water Contact: A Review

Safety Science and Technology, EarlyView.
Molten aluminum–water explosion triggered by leakage remains the core unresolved safety hazard hindering safe production in aluminum direct chill casting. This review summarizes its explosion mechanism, key influencing factors, prevention technologies, existing gaps, and prospects of intelligent multi‐technology integrated explosion‐proof systems ...
Min Wang, Kang Yang, Jiang Dong, Lidong Xing, Bing Chen, Changke Chen   +5 more
wiley   +1 more source

Influence of Reduced Graphene Oxide on the Morphological and Mechanical Behavior of Compatibilized Linear Low Density Polyethylene Nanocomposites for the Rotational Molding Industry

Journal of Vinyl and Additive Technology, EarlyView.
Influence of reduced graphene oxide on the morphological and mechanical behavior of compatibilized linear low density polyethylene nanocomposites for the rotational molding Industry. ABSTRACT This study investigates the development of high‐performance LLDPE nanocomposites reinforced with reduced graphene oxide (rGO) and a maleic anhydride‐grafted ...
Samuel Costa, Douglas Alexandre Simon, Renan Demori, Raquel Santos Mauler, João Maia, Eveline Bischoff   +5 more
wiley   +1 more source

Coalbed methane reservoir properties assessment and 3D static modeling for sweet-spot prediction in Dahebian block, Liupanshui Coal field, Guizhou Province, southwestern China

Heliyon
Guizhou Province has many multi-layer, thin-thick coal seams; however, complex geology, incomplete reservoir characterization, and sweet-spot selection technology prevent large-scale coalbed methane (CBM) development.
Debashish Mondal, Shuxun Sang, Sijie Han, Xiaozhi Zhou, Fuping Zhao, Jinchao Zhang, Wei Gao   +6 more
doaj   +1 more source

Salt Range Formation of Pakistan Preserves Unique Record of Volcanic Fertilization During the Ediacaran Shuram Excursion

Terra Nova, EarlyView.
ABSTRACT Thin, discontinuous, organic‐rich oil shale beds in the siliciclastic‐evaporitic Salt Range Formation (SRF) of Pakistan are of approximate Neoproterozoic to Cambrian age based on stratigraphic constraints. The beds are enriched (26–43 wt.% total organic carbon, TOC) in aliphatic organic matter (OM) of low thermal maturity despite their ...
Paul C. Hackley, Ryan J. McAleer, Jay M. Thompson, Brett J. Valentine, Imran Khan   +4 more
wiley   +1 more source