Results 41 to 50 of about 75,431 (87)

Multi scale fusion point cloud denoising method based on improved statistical filtering

Meitan kexue jishu
With the development of intelligent mining, 3D laser scanning technology has gradually been applied to coal mine tunnel monitoring. However, due to the complex environmental factors in underground coal mines, the point cloud data obtained through 3D ...
Guisheng DAI, Tianshan SUN
doaj   +1 more source

Effect of cement and straw fiber on water retention of vegetation substrate of Yellow River sediment

Meitan kexue jishu
In response to the challenge of utilising Yellow River sediment resources, artificial slope protection engineering techniques using vegetation substrates were employed to restore the ecology of coastal urban mine tailings ponds, with the aim of improving
Ning WANG, Dong XIA, Xiaoming DUAN, Liang SONG, Bingqin ZHAO, Wennian XU   +5 more
doaj   +1 more source

Microbial mineralization combined with vegetation soil stabilization in coal mining subsidence areas

Meitan kexue jishu
The shallow geological environment of coal mining in ecologically fragile mining areas continues to deteriorate. In order to control soil instability and soil erosion in collapsed areas, experimental research on microbial mineralization combined with ...
Ying GAO, Tao LI, Kaidan ZHENG, Limin FAN, Ruhong BAI, Qiang SUN   +5 more
doaj   +1 more source

Largely Enhanced Ferromagnetism in Bare CuO Nanoparticles by a Small Size Effect. [PDF]

ACS Omega, 2020
Batsaikhan E, Lee CH, Hsu H, Wu CM, Peng JC, Ma MH, Deleg S, Li WH.   +7 more
europepmc   +1 more source

Investigation into failure mechanisms of lunar regolith simulant under thin-walled drilling tool with critical parameters

International Journal of Mining Science and Technology
Acquiring pristine deep lunar regolith cores with appropriate drilling tools is crucial for deciphering the lunar geological history. Conventional thick-walled drill bits are inherently limited in obtaining deep lunar regolith samples, whereas thin ...
Zheng Gao, Mingzhong Gao, Haichun Hao, Yan Wu, Jinfeng Cao, Qichen Sun, Junshan Gong, Jiahua Li, Lang Zhou, Xuemin Zhou   +9 more
doaj   +1 more source

Homogeneity-dependent fracture behavior and instability mechanism of composite coal-rock: Insights from three-point bending tests

International Journal of Mining Science and Technology
To investigate the instability mechanisms of heterogeneous geological structures in goaf area roofs, three-point bending tests (TPBT) and numerical simulations are performed on composite coal-rock (CCR).
Weitao Yue, Enyuan Wang, Xiaojun Feng, Tingjiang Tan, Li Zhang, Dong Chen, Qiming Zhang, Zeng Ding   +7 more
doaj   +1 more source

Transient alumina transformations on Ni–Cr–Al alloys: nanocrystallization and Cr concentration impacts

Journal of Materials Research and Technology
Ni–Cr–Al coarse-grained (CG) or nanograined (NC) alloys with 5 wt% Al but various Cr concentrations (10 wt% and 30 wt%) were prepared via casting and magnetron sputtering, respectively.
Xia Zhang, Ziyi Zhou, Xun He, Zongxiang Huang, Yueyue Zhang, Zhenwei Chen, Xiao Peng   +6 more
doaj   +1 more source

Bridging the nano-scale interphase with macro-scale properties: Two-step simulating of electrical conductivity for polymer composites incorporating carbon nanofibers

Journal of Materials Research and Technology
The theoretical attitudes for conductivity of polymer-carbon nanofiber (CNF) system entitled as PCNFs are imperfect, thus constraining the upgrading of high-quality products.
Yasser Zare, Muhammad Tajammal Munir, Kyong Yop Rhee, Soo-Jin Park   +3 more
doaj   +1 more source

Dynamic compression and failure behavior of limestone under surface-constrained energy transmission

Journal of Materials Research and Technology
As an essential material in various construction and mining projects, the deformation and failure of rocks directly affect the safety and efficiency of the project. Energy transmission plays a crucial role in the deformation and failure process of rocks,
Baoping Zou, Kai Huang, Jingyuan Ma, Daoquan Wei, Manchao He, Jianping Sun   +5 more
doaj   +1 more source

Research progress on heat treatment regulation and mechanical properties of selective laser melted γ″-strengthened nickel-based superalloys

Fenmo yejin jishu
The thermal stability of the selective laser melted nickel-based superalloys with the complex non-equilibrium solidified microstructure is different from that of the traditional cast and forged counterparts, and the traditional standard heat treatment ...
NI Xiaoqing, DAI Kunjie, KONG Decheng
doaj   +1 more source