Results 221 to 230 of about 146,479 (306)

Research on Optimal Width of Coal Pillars in Both Sides of Abandoned Mining Areas and Tunnel Control Technology

Energy Science &Engineering, EarlyView.
This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin, Kanglei Han, En Wang, Yitao Yan, Xubo Zhao   +4 more
wiley   +1 more source

3D upper crustal structure modelling in southwestern Sicily through multiapproach onshore-offshore data: insight into Sciacca Geothermal Field. [PDF]

Sci Rep
Rizzo GF, Maiorana M, Gasparo Morticelli M, Lo Presti V, Agate M, Sulli A.   +5 more
europepmc   +1 more source

Stability Evaluation and Parametric Optimization of Coal‐Concrete Composite Bearing Systems Under Mine‐Water‐Induced Deterioration: Experiments and FEINN Analysis

Energy Science &Engineering, EarlyView.
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen, Hongchuan Dai, Guixin Zhang, Pengzhe Li, Tong Yang, Cang Gong, Renbo Gao   +6 more
wiley   +1 more source

Tectonic Styles and Tectonic Evolution of Salin Depression in Myanmar

Advances in Geosciences, 2018
openaire   +1 more source

Analysis and Optimization of Early‐Warning Indicators for Impact Critical Stress in Deep Soft Coal Seams

Energy Science &Engineering, EarlyView.
This study determines the impact critical stress early‐warning indicators for deep soft coal seams: 18 MPa (shallow holes), 20 MPa (deep holes), and 3 MPa/d daily stress change rate, via theoretical, experimental and simulation methods. ABSTRACT The accurate determination of early‐warning indicators for critical impact stress in deep soft coal seams is
Haichen Yin, Xiufeng Zhang, Atao Li, Yanliang Wang, Long Yuan, Chaohong Shi, Yang Chen, Caiping Lu, Liangjin Jiang   +8 more
wiley   +1 more source

Process and forces of tight-sandstone gas charging in the Shihezi formation (P₂x¹) Dongsheng gas field, northern Ordos Basin China. [PDF]

Sci Rep
Cao Q, He F, Zhang W, Ye J, Lu Y, Liu Y, Yu H, An C, Sun L.   +8 more
europepmc   +1 more source

Wonder as a Gateway to Science Meaning‐Making: Primary Pupils’ Narrative Journeys

Future in Educational Research, EarlyView.
ABSTRACT This study explores how wonder fosters transformative learning in science education for pupils (11–12 years old), creating meaning about cycles in nature. As an emotional and epistemic trigger, wonder may bridge everyday experiences with abstract scientific concepts by stimulating curiosity and creativity. Through a narrative writing task, the
Pauline Book, Siri‐Christine Seehuus
wiley   +1 more source

Metamorphic evolution of amphibolite from Proto-Tethys South Altyn orogen and its geological significance. [PDF]

Sci Rep
Zhang S, Ma T, Gai Y, Liu L.
europepmc   +1 more source

The Impact of Democratization and Globalization on Environmental Sustainability in Brazil

Geological Journal, EarlyView.
Fossil fuel, economic globalisation, and economic growth drive environmental degradation while democratisation positively influences environmental quality. ABSTRACT Although Brazil still possesses significant ecological reserves, the surplus in its biocapacity has been rapidly declining in recent years.
Mustafa Naimoğlu, Mehmet Metin Dam, Serdar Ongan, Andrew Adewale Alola   +3 more
wiley   +1 more source

Differential Accumulation Dynamics of Organic Matter in the Central and Eastern Bohai Bay Basin (Eastern China): Implications for Tectonic Activity. [PDF]

ACS Omega
Li Y, Chen Y, Ma Z, Pan K, Xu Y, Wu X, Zhang R, Song L, Ding Q, Qu L, Zhu Q.   +10 more
europepmc   +1 more source