Results 91 to 100 of about 934 (182)

“Thinking Out Loud” and “Pivoting on the Fly”—An Empirical Review and Critical Incident Study of How Physicians Engage in Incidental Learning Amidst Complexity

Human Resource Development Quarterly, EarlyView.
ABSTRACT This study explores incidental learning among physicians navigating uncertainty during the COVID‐19 pandemic. Using a constructivist research design, we conducted a literature review of 13 empirical studies on incidental learning in complexity and analyzed critical incident interviews with 12 emergency medicine and intensive care physicians ...
Henriette Lundgren, Karen E. Watkins, Victoria J. Marsick, Dimitrios Papanagnou, Urvashi Vaid   +4 more
wiley   +1 more source

Research on the attenuation characteristics of seismic energy in multicoal seam mining and the warning method of rock burst

Energy Science & Engineering
The mechanism of rock burst induced by the superposition of dynamic and static loads in multicoal seam mining is unique. To investigate the propagation attenuation law of large‐energy microseismic events and the induced mechanism of rock burst under this
Hongwei Mu, Yongliang Zhang, Mingzhong Gao, Quanlin Zhu, Jingbo Li, Jinfeng Cao, Wentao Fan   +6 more
doaj   +1 more source

Reasonable coal pillar setting and roadway surrounding rock control technology in close-distance coal seam working face

工程科学学报, 2022
To explore the reasonable width of the coal pillar and surrounding rock control technology of the mining roadway in a close-distance coal seam working face, this paper took the mining of No.10 and No.11 coal seams of the Huipodi coal mine as the engineering background.
Hui CHENG, Hong-bao ZHAO, Huan ZHANG, Jian-feng XU, Feng-yuan QIN   +4 more
openaire   +1 more source

Foamed Concrete Sealing Materials for Coal Seam Gas Drainage Boreholes: A Review

Safety Science and Technology, EarlyView.
This study investigates the sealing performance of foamed concrete in gas drainage boreholes. By comparing leakage pathways (a, c) with sealed systems (b, d), the research demonstrates how foamed concrete effectively fills mining‐induced fractures and resists deformation.
Jiaxing Zou, Erlei Su, Huanchun Liu, Xiangjun Chen, Lin Wang, Haidong Chen, Lin Li   +6 more
wiley   +1 more source

Nanomaterials‐Decorated Biomass‐Derived Carbon for Overall Water Splitting: Interfacial Engineering, Mechanistic Insights, and Device Translation

The Chemical Record, EarlyView.
Biomass‐derived carbon provides a sustainable, porous, and conductive scaffold that stabilizes nanomaterials for bifunctional hydrogen evolution reaction/oxygen evolution reaction catalysis. This review summarizes design strategies (defects, heteroatom doping, heterostructures, single atoms), mechanistic/density functional theory insights, degradation ...
Paricha Jebin, Md. Rakib Khan, Syed Shaheen Shah, S. M. Mostafa Kamal, Mst. Kaniz Subarna, Nipa Debnath, Md. Abdul Aziz, Bong‐Joong Kim, A. J. Saleh Ahammad   +8 more
wiley   +1 more source

Test of roof interception directional drilling for close distance coal seam group gas control in Qidong Coal Mine

Gong-kuang zidonghua, 2021
In the existing methods of close distance coal seam group gas control, there are problems such as large engineering quantities, high cost and long cycle. In order to solve the above problems, taking the 94 mining area of Qidong Coal Mine as the research object, a gas control method by using roof interception directional drilling is proposed.
ZHANG Chaoju1, FANG Jun2, YANG Yali1, WANG Xian2, YANG Xiaoji1   +4 more
openaire   +1 more source

The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman

Journal of Petroleum Geology, EarlyView.
ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi, Alan P. Heward, Lorraine B. Eglinton, Steve R. Packer, Darrin T. Stead   +4 more
wiley   +1 more source

Law Regarding Damage Caused by Repeated Mining in Close Coal Seams

Geofluids
Coal mining in China is increasingly moving towards deeper resources. In certain Carboniferous–Permian coal fields in North China, there is a typical problem of repeated mining over short distances and multiple coal seams, and the distance between the ...
Fuzhu Wu, Gen Chen, Yanjie Liu, Yonghui Wu, Zidong Jin   +4 more
doaj   +1 more source

Multi-field evolution laws of overburden rock in ultra-close multi-seams pressure relief mining and “blocking-reducing-controlling” synergistic control technology of gas

Meitan xuebao
Pressure relief mining is the most economical and effective regional gas control measure under coal seam conditions. However, compared to long-distance coal seam groups, the gas outflow from the first mining face under the condition of pressure relief ...
Kang LI, Guozhong HU, Duanwu ZENG, Jialin XU, Nan YANG, Wei QIN, Jiaxin ZHU   +6 more
doaj   +1 more source

Multi‐proxy sequence stratigraphy of a mixed carbonate–siliciclastic shelf across the Jurassic–Cretaceous transition

The Depositional Record, Volume 12, Issue 4, September 2026.
An integrated facies, MS and XRF‐based approach applied to the Tithonian–Berriasian Sidi Khalif Formation (central Tunisia) resolves five Tithonian and eight Berriasian third‐order sequences, showing how mixed carbonate–siliciclastic shelves record coupled eustatic, climatic and tectonic controls and providing a transferable template for similar mud ...
Hamdi Omar, Adnene Lafi, Chokri Yaich
wiley   +1 more source