Results 81 to 90 of about 8,725 (226)

Failure Mechanism of Asymmetric Large Deformations Under Repeated Mining in Roadways

Energy Science &Engineering, Volume 14, Issue 3, Page 1195-1212, March 2026.
Principal stress‐evolution diagram at different advance positions of 42205 working face. ABSTRACT To address the challenge of controlling severe asymmetrical deformation in roadways subjected to repeated mining, this study (i.e., based on the engineering context of the Buertai Coal Mine) investigated the characteristics of the regional stress field in ...
Ai‐Rong Wang, Tao Peng, Kang Zhou, Chong‐Yu Song   +3 more
wiley   +1 more source

Winston Churchill and South Africa: An Enduring, yet Debatable Connection, 1899–1955

History, Volume 111, Issue 395, Page 168-182, March 2026.
Abstract The article traces Churchill's engagement with South Africa, from his time as a newspaper correspondent during the Anglo‐Boer War to his services in both Liberal and Conservative cabinets as well as, ultimately, his premiership. The discussion highlights three phases in this relationship.
LUVUYO WOTSHELA
wiley   +1 more source

IMPROVING THE METHOD OF OPEN-PIT LIGNITE DEPOSITS DEVELOPMENT IN UKRAINE [PDF]

, 2018
Subject of the research is open-pit mining concerning a full- field industrial development of a number of lignite deposits; feasibility study has been performed for them as for the efficient environmental friendly processing of coal and associated ...
Adamchuk, A.A., Dryzhenko, A.Yu., Shustov, O.O., Адамчук, А.А., Адамчук, Андрей Андреевич, Адамчук, Андрій Андрійович, Дриженко, А.Ю., Дриженко, Анатолий Юрьевич, Дриженко, Анатолій Юрійович, Шустов, Александр Александрович, Шустов, О.О., Шустов, Олександр Олександрович   +11 more
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Towards Carbon Neutralization: Clean and Efficient Use of Coal

Carbon Neutralization, Volume 5, Issue 1, January 2026.
This paper provides a comprehensive exploration of the clean and efficient utilization of coal resources, with a particular emphasis on the potential of coal chemical technology, carbon materials, and CCUS technology, and the opening up of innovative pathways for the utilization of coal resources.
Xin Wen, Wei Song, Xue Wang, Chunrong He, Xinyue Chen, Ting Wang, Penggao Liu   +6 more
wiley   +1 more source

Research on the Mechanism and Control of Spalling on 8 m Fully Mechanized Mining Face in Huoxi Coalfield

Applied Sciences
The great success of fully mechanized mining with a large mining height of 8 m and above in Mongolia and Shaanxi proves the feasibility of this technology. Although fully mechanized mining with a large mining height significantly increases the production
Lin Meng, Mei Wang, Chenlong Wang, Yongkang Yang   +3 more
doaj   +1 more source

Distribution Law of Spontaneous Combustion Hazard of Coal in Lower Goaf of Close Distance Coal Seams

Meikuang Anquan, 2020
In view of the objective conditions of high sulfur content and local enrichment, large amount of residual coal and closing to upper goaf of coal seams in the 8104 fully mechanized coal mining face of Xinwei Coal Mine, the distribution law of coal ...
JIAO Gengxin, BAI Chengwu, QI Xuyao, QIAO Shi, CHEN Liangzhou, LI Xuewen, JI Youcang, CHEN Liang, SONG Runquan
doaj   +1 more source

English for Study and Work: Coursebook in 4 books. Book 2 Obtaining and Processing Information for Specific Purposes [PDF]

, 2015
Подано всі види діяльності студентів з вивчення англійської мови, спрямовані на розвиток мовної поведінки, необхідної для ефективного спілкування в академічному та професійному середовищах.
Зуенок, И. И., Зуенок, Ирина Ивановна, Зуєнок, І. І., Зуєнок, Ірина Іванівна, Кострицкая, С. И., Кострицкая, Светлана Ивановна, Кострицька, С. І., Кострицька, Світлана Іванівна, Поперечна, Н. В., Поперечна, Неллі Василівна, Поперечная, Н. В., Поперечная, Нелли Васильевна, Швец, Е. Д., Швец, Елена Дмитриевна, Швець, О. Д., Швець, Олена Дмитрівна   +15 more
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Hardening and Hollowing Out Private Property: Rentiership, Dispossession, and Planetary Extraction in the Marcellus Shale

Antipode, Volume 58, Issue 1, January 2026.
Abstract Southwestern Pennsylvania (SWPA) has long been an energy extractive periphery, continuously remade through cycles of dispossession and accumulation. Here we examine the changing dynamics of private property in these cycles and its central role in the latest phase of extraction—unconventional oil and gas development (UOGD).
Owen Harrington, Jennifer Baka
wiley   +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

THE NIGERIAN COAL CORPORATION: AN EVALUATION OF PRODUCTION PERFORMANCE(1960 1987) [PDF]

COAL WAS DISCOVERED IN NIGERIA IN 1909 AND COAL MINING STARTED WITH A DRIFT MINE AT OGBETE, ENUGU IN 1915. SINCE 1958/59, WHEN COAL PRODUCTION REACHED ITS PEAK, THERE HAS BEEN A PERSISTENT FLUCTUATION IN THE AMOUNT OF COAL PRODUCED IN SUBSEQUENT YEARS ...
DR. GODWIN CHUKWUDUM NWAOBI
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