Results 61 to 70 of about 16,326,882 (286)

Management plan of geological hazard threats in the fault zone of adjacent open-pit mines

Meitan kexue jishu
In the development of large-scale open-pit coal fields in China, there are often several Coal companies entering the same coal field, and each Coal company is a main body of development, mining coal resources in the state-allocated strip area, and ...
Guangwei LIU, Junxiong TU, Xianshuai MA, Yong YAO, Liang WANG, Meiling ZHAO   +5 more
doaj   +1 more source

Deciphering the Palimpsest: Chronological Uncertainty and the Interpretation of Mining Landscapes at Písečný vrch (Czech Republic)

Archaeological Prospection, EarlyView.
ABSTRACT We investigated the Písečný vrch (Czech Republic), a site exploited for quartz mining in both prehistoric times and the 20th century. Due to their morphological similarity across all mining periods, the differentiation between pits with archaeological potential and recent ones is challenging.
Jan Fišer, Petr Krištuf, Jan Kropáček, Vojtěch Barták, Lenka Starková, Vítězslav Moudrý   +5 more
wiley   +1 more source

Innovative Approach for Heating of Buildings Using Water from a Flooded Coal Mine Through an Open Loop Based Single Shaft GSHP System [PDF]

, 2015
Geothermal energy, deep and shallow, has always been identified as an important renewable energy resource. The stable temperature and relatively low enthalpy of mine water contained in the abandoned and flooded coal mines have the potential to form a ...
Athresh, Anup P., Al-Habaibeh, A, Parker, K, Athresh, A, Parker, Keith, Al-Habaibeh, Amin   +5 more
core   +1 more source

Key technical progress of water cutoff curtain technology in open-pit coal mines in China

, 2022
The method of pumping and discharging groundwater is widely used in open-pit coal mines for groundwater control in China to meet the requirements of safe coal mining, which causes great damage to water resources and seriously affects the ecological ...
Xuanming, HUANG, Yan, ZHANG, Mingxing, WANG, Guozhi, LI, Qingshan, TENG   +4 more
core   +1 more source

Evidence for adaptive explanations of semelparity in animals

Biological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher, Roberto Salguero‐Gómez   +1 more
wiley   +1 more source

Unveiling the Potential of Metal and Non‐Metal Modified Porous Carbon for the Electrochemical Reduction of CO2

Carbon Energy, EarlyView.
Earth‐abundant metal‐ and non‐metal‐modified porous carbons offer a highly tunable platform for electrochemical CO2 reduction. This review shows how electronic interactions, active‐site coordination, pore architecture, and cooperative catalytic effects jointly govern intermediate stabilization, product selectivity, and device‐relevant CO2RR performance.
Hussein A. Younus, Asma Al Harthi, Mohammed Al Abri, Kamel Eid, Rashid Al Hajri   +4 more
wiley   +1 more source

Stability control mining method of soft rock slope in composite coal seam open-pit mine: a case study of Baiyinhua No.1 open-pit coal mine

Meitan kexue jishu
Rational slope stability-controlled mining method can effectively ensure the safety and stability of open-pit mine slopes, facilitate seamless production capacity transition, and enhance the economic benefits of mining areas. The Baiyinhua No. 1 open-pit
Weiqiang GUO, Hui ZHANG, Hongge TONG, Junxiong TU, Guangwei LIU, Huizhong ZHU, Zuchao LIANG, Jie YUAN, Yu BAI, Mingyu YU, Hao LUO   +10 more
doaj   +1 more source

Coal and Open-pit surface mining impacts on American Lands (COAL)

, 2018
COAL is a Python library for processing hyperspectral imagery from remote sensing devices such as the Airborne Visible/InfraRed Imaging Spectrometer (AVIRIS). COAL was originally developed as a 2016 – 2017 senior capstone collaboration between scientists at the Jet Propulsion Laboratory (JPL) and computer science students at Oregon State ...
McGibbney, Lewis, Brown, Taylor Alexander, Clayton, Heidi Ann, Wang, Xiaomei, Whitehall, Kim   +4 more
openaire   +1 more source

98 Life expectancy at an open pit coal mine in colombia [PDF]

Mining Occupational Safety and Health, 2018
Introduction Several studies have shown that life expectancy of miners in underground mines is greatly reduced. The complex working conditions to which they are subjected and the associated social conditions explain this reduction. However, few studies have come forward to show whether life expectancy is also reduced in miners working in open pit ...
Jaime Huertas, H Piedrahita
openaire   +1 more source

Applications of Biomaterials in Separators for Secondary Batteries

Carbon Energy, EarlyView.
In this review, biomaterial‐based separators are reviewed as sustainable alternatives to conventional polyolefin‐based separators. For 12 different natural polymers, spanning from Protista, Plantae, and Animalia, viable strategies for synthesizing biomass‐based separators are described.
Jongyoung Choi, Sung Cik Mun, Yong‐Seok Choi, Jong Ho Won   +3 more
wiley   +1 more source