Results 51 to 60 of about 2,980 (208)

Mechanism of the coal bursts in the working face during mining of steeply inclined and extra thick coal seam

Geomatics, Natural Hazards & Risk, 2023
Coal bursts caused by mining-induced seismicity occur in the working face in steeply inclined and extra thick coal seams (SIETCSs). This article presents a case study in SIETCS through discrete element simulation as well as field investigation.
Jinrong Cao, Linming Dou, Jiang He, Jiahao Xie, Zepeng Han, Songwei Wang   +5 more
doaj   +1 more source

Enhancing the Performance of Aqueous Lithium‐Ion Batteries via N‐Methylpyrrolidone Additive

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Aqueous lithium‐ion batteries (ALIBs) have garnered significant attention in the field of energy storage due to their inherent safety. However, their practical application is severely constrained by a narrow electrochemical window and electrolyte crystallization at low temperatures.
Zhiwei Shi, Hongmin Chen, Hongyu Xia, Min Jia, Haojie Lv, Fei Gu   +5 more
wiley   +1 more source

Supervised and unsupervised general framework for rockburst risk prediction based on feature contrast of long-term and short-term microseismic data

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
Short-term rockburst risk prediction based on microseismic (MS) data is a significant research task to overcome the rockburst challenge during the excavation stage. By reviewing previous short-term rockburst risk prediction methods based on MS data, this
Haikuan Zhang, Haitao Li, Xiufeng Zhang, Shanshan Xue, Haichen Ying, Atao Li, Jianwei Zheng, Xiaoshan Shi   +7 more
doaj   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source

A self-supervision rockburst risk prediction algorithm based on automatic mining of rockburst prediction index features

Frontiers in Earth Science
The rockburst risk prediction based on microseismic (MS) data is an important research task in deep mine safety prevention. However, the lack of systematic research on explicit prediction indexes and the waste of a large amount of unlabeled data are ...
Xiufeng Zhang, Haikuan Zhang, Haitao Li, Guoying Li, Shanshan Xue, Haichen Yin, Yang Chen, Fei Han   +7 more
doaj   +1 more source

Thermophilic anaerobic treatment and biogas generation from wastewater produced in an advanced biorefinery process

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Anaerobic digestion can be an alternative method for treating wastewater from second‐generation biorefineries while simultaneously producing biogas. However, the feasibility of the process and key operational parameters by which wastewater produced in lignocellulosic biorefineries affects reactor performance remain poorly understood.
Jairo M. Carrillo‐Osorio, Germán Buitrón   +1 more
wiley   +1 more source

Study on initial fracture distribution and bearing damage evolution mechanism of disturbed coal samples in oil-rich coal deposits in western China

Frontiers in Materials
The simultaneous formation of stress transfer and structural optimization in deep underground engineering strongly influences the occurrence and severity of dynamic disasters, especially under complex stress–structure conditions.
Yawu Shao, Yawu Shao, Yawu Shao, Yawu Shao, Lei Zhu, Lei Zhu, Lei Zhu, Chang Xin, Gang Han, Gang Han, Gang Han, Haifei Lin, Hu Liu, Hu Liu, Hu Liu, Jiahao Xie, Jiahao Xie, Jiahao Xie, Jiahao Xie, Mingming Sun, Mingming Sun, Mingming Sun, Jin Wang, Jin Wang, Jin Wang   +24 more
doaj   +1 more source

Signalling ESG Misconduct: What Matters to Investors?

Business Strategy and the Environment, EarlyView.
ABSTRACT We investigate what matters most to investors when environmental, social and governance (ESG)‐related corporate misconduct news is signalled and how these factors influence the magnitude of market value punishment. Using an event study on 44,859 corporate news items related to ESG incidents, we find that investors react negatively to such ...
Dewan Muktadir‐Al‐Mukit
wiley   +1 more source

Rock burst risk evaluation based on equivalent surrounding rock strength

International Journal of Mining Science and Technology, 2019
On-site investigations consistently show that the rock burst inherent to coal seams varies greatly with coal seam thickness. In this study, impact factors related to coal seam thickness and surrounding rock strength were analyzed and a corresponding rock
Jinglin Wen, Husheng Li, Fuxing Jiang, Zhengxing Yu, Haitao Ma, Xiaolin Yang   +5 more
doaj   +1 more source

Influence of Geopolitical Risk on Energy Transition and Climate Change

Business Strategy and the Environment, EarlyView.
ABSTRACT Geopolitical tensions can influence energy transition, which, in turn, can impact climate change. Thus, we construct a framework that integrates these processes, analyzing 17 economies from 1990 to 2020 using a GVAR model. We hypothesize that geopolitical risk shocks affect economies through domestic financial markets.
Luccas Assis Attílio
wiley   +1 more source