Results 61 to 70 of about 4,130 (213)

Toward Carbon Neutrality: Pathways and Challenges in Green Steel Production

cScience, Volume 2, Issue 2, June 2026.
ABSTRACT Steel, a cornerstone of modern civilization and economic growth, has experienced exponential production growth, resulting in substantial carbon emissions owing to reliance on fossil‐based reducing agents and fuels. Although conventional steelmaking methods have improved, achieving the climate targets outlined in the Paris Agreement requires ...
Xianfeng Hu, Lena Sundqvist Ökvist, Guozhu Ye, Johan Björkvall   +3 more
wiley   +1 more source

Road Performance Evaluation of Unburned Coal Gangue in Cold Regions

, 2023
At present, the cumulative storage of coal gangue in China exceeds 7 billion tons, covering an area of approximately 70 km2. The engineering application of unburned coal gangue is mainly utilized as concrete aggregate or cement production after the ...
Xiaohe Chai, Chuang Lin, Feng Zhang, Deng Ma, Liang Shi, Yan Feng   +5 more
core   +1 more source

Study on the prediction of gangue content rate in fully mechanized caving face based on DeepLab v3+

Gong-kuang zidonghua
To tackle the challenge of accurately determining the volumetric gangue content rate under actual stacking conditions of coal-gangue in fully mechanized caving faces, a prediction method based on the DeepLab v3+ model was proposed.
WANG Zhifeng, WANG Jiachen, LI Lianghui, AN Bochao   +3 more
doaj   +1 more source

Research status and innovative utilization strategy of coal gangue resource in building material field

能源环境保护, 2023
Coal gangue has been the biggest industrial solid waste discharged in our country, with the cumulative stockpile of more than 7 billion tons. The accumulation and discharge of coal gangue occupy a large amount of land, pollute the soil, air and water ...
WU Changliang, WANG Wenlong*, WANG Xujiang, LI Jingwei   +3 more
doaj   +1 more source

Tailoring of Waste‐Derived CO2 Adsorbents From the Perspective of Apparent and Intrinsic Property Regulation

cScience, Volume 2, Issue 2, June 2026.
ABSTRACT The conversion of waste materials into solid CO2 adsorbents is a promising strategy for carbon capture and waste management. In this review, we discuss recent advances in the preparation and modification of waste‐derived CO2 adsorbents, including carbon‐based materials, zeolites, metal–organic frameworks, layered double hydroxides, CaO, and ...
Han Zhang, Ziyan Yang, Lina Liu, Zhikun Zhang   +3 more
wiley   +1 more source

Study on oxidation characteristics of coal gangue with different moisture content under water immersion drying [PDF]

Coal gangue, which accumulates in the open air, is modified by immersion in rain, and exhibits different tendencies to spontaneous combustion in different areas of precipitation.
Jing ZHANG, Chenhong ZHOU, Xuping LI, Xiaopeng REN, Jianan YAO, Zhi LI, Tianyu LI   +6 more
core   +1 more source

Stress Redistribution Mechanisms and Subsidence Control of Fluidized Gangue Backfilling in Underground Coal Mining: Integrated Experimental and Numerical Investigation

Energy Science &Engineering, Volume 14, Issue 5, Page 2476-2498, May 2026.
Fluidized gangue backfilling controls mining subsidence through stress redistribution in composite backfill‐pillar systems, reducing surface settlement and stress concentrations. Multi‐scale experimental and numerical analysis provides quantitative design parameters for optimizing ground control in sustainable underground coal mining operations ...
Weilong Zhang, Jie Zhang, Yuanzhen Zhang, Wenjing Liu, Liang Li, Deyi Nan, Guannan Zhao, Chen Yang, Haiqing Bian, Hua Shao, Xiao Zuo, Changtai Zhou   +11 more
wiley   +1 more source

Automatic separation method of coal and gangue based on wavelet transform

Gong-kuang zidonghua, 2018
In view of the problems of low recognition accuracy, multiple extraction parameters and low real-time processing efficiency of existing coal gangue recognition and separation methods based on image processing, an automatic separation method of coal ...
CHEN Li, DU Wenhua, ZENG Zhiqiang, WANG Junyuan, WANG Riju   +4 more
doaj   +1 more source

Failure Characteristic and Stability Control of Gob‐Side Entry Retention With Narrow Roadside Filling Wall

Energy Science &Engineering, Volume 14, Issue 4, Page 2137-2152, April 2026.
A novel collaborative control technology of gob‐side entry retention with narrow roadside filling wall is proposed, wherein anchoring end of anchor cable must penetrate the boundary line of stress peak (plastic zone). ABSTRACT Gob‐side entry retention represents a major technological innovation in the history of coal mining, offering numerous ...
Wenxu Liang, Wei Fu, Ziwen Liu
wiley   +1 more source

Coal gangue recognition method based on water heat transfer and infrared thermal imaging

Gong-kuang zidonghua
The coal gangue recognition method based on visible light images has low accuracy and slow recognition speed. The coal gangue recognition method based on high-energy ray transmission has significant radiation, resulting in limited application.
CHENG Gang, CHEN Jie, PAN Zeye, WEI Yifan, CHEN Sensen   +4 more
doaj   +1 more source