Results 51 to 60 of about 353,530 (338)
Financial Risks of Investments in Coal [PDF]
, 2011 Analyzes the regulatory, commodity, and construction risks of investing in coal mining and coal-fired power plants. Examines industry analysts' consensus on viable alternatives to coal, including natural gas, solar, wind, and energy ...
Amy Galland, Leslie Lowe, Tom Sanzillo
core
, 2010 Energy resources have been a major focus for BGS over our 175 year history. In the past, our geologists searched for coal to keep the UK supplied with energy crucial for economic development.
Busby, Jon +8 more
core +1 more source
Application of coal mine roof rating in Chinese coal mines
International Journal of Mining Science and Technology, 2018 The coal mine roof rating (CMRR) is a measure of roof quality or structure competency for bedded roof types typically of underground coal mines. The CMRR has been used widely in the US, South Africa, Canada and Australia. In order to investigate the application of the CMRR system in Chinese coal mines, two coal mines in China located in Panjiang Coal ...
Yongyin Wang +3 more
openaire +3 more sources
Advanced Intelligent Discovery, EarlyView.Bayesian optimization enabled the design of PA56 system with just 8 wt% additives, achieving limiting oxygen index 30.5%, tensile strength 80.9 MPa, and UL‐94 V‐0 rating. Without prior knowledge, the algorithm uncovered synergistic effects between aluminum diethyl‐phosphinate and nanoclay.
Burcu Ozdemir +4 more
wiley +1 more source
Advances in Polymer TechnologyTo improve the deteriorated performance caused by CO2 release during the curing process of traditional moisture-crosslinked polyurethane or polyurea and poor flame retardancy, this work realized an effective in situ crosslinking technique triggered by ...
Zongke He +6 more
doaj +1 more source
Deep Underground Science and Engineering, 2023 Grouting is an effective method to improve the integrity and stability of fractured rocks that surround deep roadways. After years of research and practice, various theories and a complete set of grouting technologies for deep roadways with fractured ...
Hongpu Kang +3 more
doaj +1 more source
Natural Resource Curse and Poverty in Appalachian America [PDF]
, 2012 The Appalachian mountain region has long been characterized by deep poverty which led to the formation of the Appalachian Regional Commission (ARC) in 1965.
Betz, Mike +2 more
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Case study of hydraulic fracturing for coal burst risk mitigation
International Journal of Coal Science & TechnologyCoal bursts pose significant safety and operational challenges in deep mining environments, necessitating effective mitigation strategies to address high-stress concentrations and dynamic failure risks.
Hongpu Kang +4 more
doaj +1 more source
Meikuang AnquanIn order to explore the fluid-solid coupling feedback characteristics of rock under the action of hydro-mechanical coupling, the triaxial and pore water pressure loading tests of saturated sandstone were carried out by using the rock mechanics ...
Jiawei LI +4 more
doaj +1 more source