Results 221 to 230 of about 2,137,122 (310)

Characteristics of overburden failure and evolution of fractures in fully mechanized top coal mining face. [PDF]

Sci Rep
Wang X, Liu F.
europepmc   +1 more source

Transformative, Iterative or Performative? Conceptualising Patterns of Fossil Fuel Phaseout Leadership

Environmental Policy and Governance, EarlyView.
ABSTRACT Global leadership in phasing out fossil fuels is an important new frontier in climate governance, yet remains undertheorised within existing scholarly accounts of climate leadership. In this paper, we argue that ‘phaseout leadership’—climate leadership centred on curtailing fossil fuel supply—is a distinct kind of leadership that dominant ...
Freddie Daley, Lukas Slothuus, Daniela Soto‐Hernandez   +2 more
wiley   +1 more source

Deformation law of overlying rock strata during the initial mining period of a coal mining face: mechanical analysis. [PDF]

Sci Rep
Chuantian L, Zeyu L, Liting L, Yongliang H, Yuping F, Xiaoyuan S.   +5 more
europepmc   +1 more source

Researching Attitude–Identity Dynamics to Understand Social Conflict and Change

European Journal of Social Psychology, EarlyView.
Abstract Societies undergo constant change, manifested in various ways such as technological developments, economic transitions, reorganization of cultural values and beliefs, or changes in social structures. Individuals play an active role in shaping social and societal change by interactively negotiating its manifestation.
Adrian Lüders, Mike Quayle, Paul Maher, Ana‐Maria Bliuc, Pádraig MacCarron   +4 more
wiley   +1 more source

Plant Functional Diversity Is Primarily Influenced by Exchangeable Cation Deposition in a Saline-Alkaline Coal-Mining Region in Northwestern China. [PDF]

Ecol Evol
Li C, Yu H, Li B, Huang S, Huang J.
europepmc   +1 more source

Numerical Simulation Study on Optimization of Horizontal Sublevel Top‐Coal Caving Mining Technique for Steeply Inclined Extra‐Thick Coal Seam

Energy Science &Engineering, EarlyView.
As the sublevel height increases, the top‐coal recovery amount gradually increases, but both the top‐coal recovery rate and the thickened top‐coal recovery rate show a downward trend, and the decline in the top‐coal recovery rate is gradually increasing. The comparison indicates that the optimal sublevel height is 20 m.
Hongsheng Tu, Dingyi Hao, Wenhong Xiao, Fuhao Jiang, Shikun Xu   +4 more
wiley   +1 more source

A Low-Viscosity Copper-Based Deep Eutectic Solvent for Carbon Monoxide Elimination at the Return Corner of Coal Mining Faces. [PDF]

Molecules
Xin T, Zhou X, Sun Y, Bai G, Sun W, Wang J, Liang B, Jin J.   +7 more
europepmc   +1 more source

Damage Characteristics and Stress Distribution Law of Overburden Rock in Multiple Mining of Close Coal Seams

Energy Science &Engineering, EarlyView.
This study on close coal seams shows that multi‐seam mining increases the height of the fractured zone from approximately 26 m (single upper‐seam mining) to about 49 m. When the lower seam is mined after the extraction of the upper seam, the heights of both the caved zone and the fractured zone increase by approximately two times.
Xiaoyu Wu, Lei Guo, Zedong Sun, Xiaowei Wu, Nan Zhang   +4 more
wiley   +1 more source

Predicting carbon storage changes in coal mining regions: a remote sensing approach based on the PIM-PLUS-INVEST model. [PDF]

Sci Rep
Wang X, Liang Y, Geng Y, Huang K.
europepmc   +1 more source

Study on Fluid Pressure in Tubing, Dynamic Stress in Reservoir, and Fracture Propagation Morphology During Variable‐Rate Hydraulic Fracturing

Energy Science &Engineering, EarlyView.
Variable‐rate hydraulic fracturing can induce unsteady flow in the tubing, thereby generating fluctuating fluid pressure near the bottom‐hole reservoir. Dynamic stress is generated in the reservoir under the action of fluctuating fluid pressure and propagates as stress waves.
Zhu Ge, Wang Chaojing, Li Weicheng
wiley   +1 more source