Results 71 to 80 of about 7,043 (214)
Black in Impressionism and Post‐Impressionism: Art, Color Vision, and Psychophysics
Color Research &Application, Volume 51, Issue 3, May/June 2026.Black has engendered controversy in 19th Century color theory and in Impressionist and Post‐Impresssionist painting. The neural mechanisms of blackness perception are being revealed through contemporary psychophysics. ABSTRACT From Paleolithic cave art to modern abstraction, artists have used black not merely as a neutral tone, but as a powerful ...
John S. Werner
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Subsidence resulting from mining [PDF]
, 1916 Illinois coal mining investigations, cooperative agreement. (This report was prepared under a cooperative agreement between the Engineering Experiment Station of the University of Illinois, the Illinois State Geological survey and the U.S.
Stoek, Harry Harkness, 1866-1923 +1 more
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Design of Initial Mining Pressure Relief Scheme for Large‐Size Mining Face: A Case Study
Engineering Reports, Volume 8, Issue 4, April 2026.The numerical simulation analysis method is used to compare the actual mining face (315 m) with the designed mining face (200 m). The results show that the large mining height working face has larger abutment pressure peak and stress concentration factor than the general mining height working face.
Qinghu Wei +3 more
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Meikuang Anquan, 2020 In order to improve the top coal resources at both ends of fully mechanized top coal caving face in extra-thick seam and the recovery rate of coal resources during the initial caving, reduce the impact of initial weighting on the working face during the
SUN Zhenping
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Energy Science &Engineering, Volume 14, Issue 4, Page 1808-1821, April 2026.Aiming at the difficulties in accurately calculating the movement and deformation of small‐sized, deep‐buried dams with a significant height‐to‐depth ratio in deep fully mechanized caving mining, this study proposes to separate the analysis of surface and dam deformation.
Zhang Feng +7 more
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Numerical simulation of gas migration rules and comparison between U shape and U+L shape ventilation system [PDF]
, 2015 This paper offers an overview of numerical simulation with the aim of improving the knowledge and reference of coal mine gas distribution rule, and providing a case study of the optimization of ventilation system and environment protection. The numerical
Bascompta Massanes, Marc +4 more
core
Energy Science &Engineering, Volume 14, Issue 4, Page 1851-1863, April 2026.With the advancement of coal mining technology driving the development of working faces toward increased mining heights and extended lengths, the enlargement of face dimensions has led to expanded overlying strata failure zones and intensified ground pressure manifestations. Consequently, traditional methods for determining hydraulic support resistance
Chen Gong +5 more
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Energy Science &Engineering, Volume 14, Issue 4, Page 1864-1880, April 2026.This study reveals the temporal and spatial evolution law of roof separation under the karst aquifer and the dynamic water inrush mechanism of roof separation. The FAHP–EWM–CRITIC combination weighting method was established to obtain the risk zoning of bed separation water inrush in a karst landform mining area. ABSTRACT Coalfields in northern Guizhou
Xilong Zhu +5 more
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International Journal of Mining Science and Technology, 2015 Aimed at determining the appropriate caving–mining ratio for fully mechanized mining of 20 m thick coal seam, this research investigated the effects of caving–mining ratio on the flow fields of coal and waste rocks, amount of cyclically caved coal and ...
Ningbo Zhang, Changyou Liu, Mengsong Pei
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Intelligent long wall top coal caving mining
Longwall Top Coal Caving (LTCC) mining technology is an effective method for mining thick and extra thick coal seams in China.Since its application in China in 1982, significant progress has been made, forming a variety of mining modes such as LTCC with large mining height, LTCC in extra thick coal seams and LTCC in steeply inclined thick coal seams ...
Wang, Jiachen, Li, Yang
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