Results 81 to 90 of about 1,791,595 (181)

Study on the Energy Evolution and Stability of Roadway Surrounding Rock Under the “Simultaneous Mining–Driving” Condition

Energy Science &Engineering, Volume 14, Issue 4, Page 2225-2247, April 2026.
Based on theoretical analysis, the energy‐evolution behavior of the surrounding rock at various depths on the solid‐coal side of the 221303 material roadway during the “advancing‐toward‐mining” process was first clarified. Numerical simulations were then performed to validate and elaborate on the theoretical results.
Wei Zhang, Peilin Gong, Kang Yi, Guang Wen, Libin Bai, Lizhu Liu, Chen Gong, Peng Li   +7 more
wiley   +1 more source

Image Processing and Recognition System Based on DaVinci Technology for Coal and Gangue

, 2011
In this paper, an image processing and recognition system of the coal and gangue has been studied. We adopt digital video processing technology of high performance---DaVinci technology to design the system, which is made up by the chip DM6437 and some ...
Ming Feng Sun, Yi Ding Zhao
core   +1 more source

Dynamic weighing method for coal and gangue in coal-gangue sorting robots

Gong-kuang zidonghua
Image recognition-based coal-gangue sorting robots have become a research hotspot in the field of coal-gangue separation. To address the issue of low recognition accuracy caused by complex real-world conditions—such as dust adhesion, lighting variation ...
CAO Xiangang, LIU Yizhe, WU Xudong, WANG Peng, ZHANG Ye   +4 more
doaj   +1 more source

MnO2-TiO2 Composite Additives Driven Low-Cost Fabrication of Coal Gangue/Bauxite Ceramic Proppants [PDF]

The urgency of resource utilization for coal gangue has driven innovations toward its high-value processing technologies. Although coal gangue can serve as a low-cost source of silicon and aluminum—reducing raw material costs by 14% compared to pure ...
Yuan, Tian, Ge, Lei, Zhang, Jin, Li, Xiaogang, Zhu, Jingyi, Yang, Zhaozhong, Zhang, Liehui, Dorosti, Fatereh, Zhang, Heng, Yang, Hongcheng, Wang, Hao   +10 more
core   +1 more source

Research on multi-manipulator coal and gangue sorting robot system based on machine visio

Gong-kuang zidonghua, 2019
Existing coal and gangue sorting methods mainly use image processing and pattern recognition technology to identify and sort coal and gangue according to texture characteristic values of coal and rock.
WANG Peng, CAO Xiangang, XIA Jing, WU Xudong, MA Hongwei   +4 more
doaj   +1 more source

Experimental Study on the Characteristics of Activated Coal Gangue and Coal Gangue-Based Geopolymer

, 2020
Coal gangue-based geopolymer (CGGP) is one of the hot spots existing in the recycling of coal gangue resources due to its good comprehensive mechanical properties.
Qiang Sun, Weiqing Zhang, Jun Chai, Chaowei Dong, Peng Huang, Meng Li   +5 more
core   +1 more source

Recognition method of transient falling images of coal and gangue separation in underground solid backfill mining with multimodal large language models

Meitan kexue jishu
Solid backfill coal mining, as a green mining method that balances resource recovery and ecological protection, relies on coal and gangue separation as a core process for the efficient operation of integrated underground mining, selection, and backfill ...
Yun ZHANG, Yixuan YANG, Xingping LAI, Liang TONG, Shenggen CAO, Yongzi LIU, Long ZHANG, Licheng BAI, Hao YE   +8 more
doaj   +1 more source

Research on Coal Gangue Recognition Based on Multi-source Time-Frequency Domain Feature Fusion. [PDF]

ACS Omega, 2023
Zhang Y, Yang Y, Zeng Q.
europepmc   +1 more source

Transport mechanism of ammonia nitrogen in the simulated gob area packed with coal gangue

, 2022
In many coal mining areas in western China, waste water produced during coal mining is often dominant in mine water, resulting in high ammonia nitrogen content.
Qiong, CAO, Yucan, LU, Li, ZHAO, Kaipeng, ZHU, Lei, ZHANG, Hongfei, YU, Qing, ZHANG, Yusong, LI   +7 more
core   +1 more source

Research on extraction of image gray information and texture features of coal and gangue image

Gong-kuang zidonghua, 2017
In view of problems of low identification accuracy and efficiency existed in most recognition method of coal and gangue image which only used gray mean and gray variance, an extraction method of gray information and texture features of coal and gangue ...
TAN Chunchao, YANG Jieming
doaj   +1 more source