Results 81 to 90 of about 9,578 (228)

A roadmap for China to peak carbon dioxide emissions and achieve a 20% share of non-fossil fuels in primary energy by 2030 [PDF]

, 2019
As part of its Paris Agreement commitment, China pledged to peak carbon dioxide (CO2) emissions around 2030, striving to peak earlier, and to increase the non-fossil share of primary energy to 20% by 2030. Yet by the end of 2017, China emitted 28% of the
Agenbroad, J, Bai, Q, Chrisman, K, Creyts, J, Feng, W, Franconi, E, Fridley, D, Hasanbeigi, A, Ke, Y, Khanna, N, Liu, X, Lu, H, McIntosh, R, Mullaney, D, Price, L, Stranger, C, Tian, Z, Wanless, E, Wetzel, D, Xiong, H, Yande, D, Yang, H, Yee, C, Zhang, J, Zhou, N, Zhu, Y   +25 more
core  

Dynamic froth stability of copper flotation tailings [PDF]

, 2018
In this work, dynamic froth stability is used for the first time to investigate the flotation behaviour of copper tailings. Reprocessing of material from tailings dams is not only environmentally desirable, but also increasingly economically feasible as ...
Brito Parada, PR, Cilliers, JJ, Mackay, I, Mendez, E, Molina, I, Videla, AR   +5 more
core   +1 more source

Distribution Characteristics of Stress Sources and Surrounding Rock Structure Control Techniques of Gob‐Side Entry Driving in Extra‐Thick Coal Seam

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
To address the challenges of surrounding rock control caused by complex stress sources and intense ground pressure in gob‐side entry driving (GED) with narrow coal pillars under extra‐thick coal seams, this study takes the 10 m‐thick coal seam 8204 panel of Tashan Coal Mine as the engineering background.
Dongjie Jiang, Guangzhong Sun, Junjie Guo, Junwen Li, Xing Xu, Qi Ma, Arnab Biswas   +6 more
wiley   +1 more source

Comparative Test For the Upgrading of Lead in Sabon Layi Lead-Zinc Ore (Alkaleri Local Government Area, Bauchi State), Using Gravity and Froth Flotation Beneficiation Methods [PDF]

, 2016
This research work deals with the upgrading of lead in Sabon Layi lead-zinc ore using gravity and froth flotation beneficiation methods. Analysis of the chemical composition reveals that this crude ore contains 38.76%lead and other related minerals such ...
Abere, D. V. (Dare), Alabi, O. O. (Oladunni), Araoye, B. O. (Babatunde), Bala, M. B. (Meshack), Dalhatu, A. A. (Aboki), Igbonwelundu, M. T. (Magnus)   +5 more
core  

Research on Mechanical Response Mechanisms of Interlayer Rock Strata in Closely Spaced Coal Seam Mining

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Closely spaced coal seams holds significant importance in global energy development, as the mechanical response mechanism of interlayer rock strata directly governs roadway deformation and stress concentration levels. This study investigates the impact of bearing structures within interlayer strata on the stability of surrounding rock during closely ...
Yuancheng Pei, Pucheng Rui, Fengyuan Lv, Wenyue Qi, Qiming Wei, Xiaolong Sun   +5 more
wiley   +1 more source

Research on coal gangue recognition method based on infrared thermal imaging

Gong-kuang zidonghua
Coal and gangue sorting methods based on heavy-medium coal selection technology, jigging technology, flotation technology, dry coal selection technology and γ-ray detection method have high investment costs, low sorting efficiency and serious ...
CHENG Gang, PAN Zeye, WEI Yifan, CHEN Jie   +3 more
doaj   +1 more source

Research on the DAS Recognition Method for Blockages in Long‐Distance Downhole Backfilling Pipelines of Goaf Coal Gangue Slurry

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Against the background of the continuous expansion of deep coal mining scale, goaf stability control and gangue disposal have become key issues restricting the safe and efficient advancement of engineering projects. The underground goaf gangue slurry backfilling technology, as a core method for gangue disposal in deep mining, not only fundamentally ...
Gu Wenzhe, Zhang Dingding, Sheng Fengtian, Wang Ziming, Qiu Fengqi, Tong Liang, Wu Yuyi, Chai Jing, Deepali   +8 more
wiley   +1 more source

An algebraic approach to modeling distributed multiphysics problems: The case of a DRI reactor [PDF]

, 2015
© 2015, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.This paper deals with the problem of modelling a chemical reactor for the Direct Reduction of Iron ore (DRI).
Boem, F, Ferrari, RMG, Parisini, T
core   +1 more source

Case studies on the use of LiveLink for MATLAB for evaluation and optimization of the heat sources in experimental borehole [PDF]

, 2020
In the Czech part of the Upper Silesian Coal Basin (Moravian-Silesian region, Czech Republic), there are many deposits of endogenous combustion (e.g., localized burning soil bodies, landfills containing industrial waste, or slag rocks caused by mining ...
Hájovský, Radovan, Martinek, Radek, Ožana, Štěpán, Pieš, Martin   +3 more
core   +1 more source

Lanthanide Sulfate Recovery by Synergistic Dimethyl Ether and Na2SO4 Fractional Crystallization

ChemSusChem, Volume 18, Issue 24, December 13, 2025.
This work demonstrates synergistic lanthanide salt recovery from an aqueous magnet leachate to single ppm concentrations using Na2SO4 combined with dimethyl ether crystallization. This waste valorization process minimizes chemicals consumed and waste generated while maximizing the recovery of a critical material product. Lanthanides (Lns) are important
Chloe Tolbert, Caleb Stetson, Denis Prodius, Christopher Orme, David Appy, Ikenna Nlebedim, Aaron D. Wilson   +6 more
wiley   +1 more source