Results 91 to 100 of about 337,035 (306)
Geofluids, 2019 Under the geological condition of soft and hard rock interaction stratum, the overburden damage height can provide a quantitative support for the design of the locations of gas drainage boreholes in the roof mining fracture zone and the determination of ...
Liang Chen +4 more
doaj +1 more source
Advanced Energy Materials, EarlyView.This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim +5 more
wiley +1 more source
Meikuang AnquanIn complex coal mine environment and poor lighting conditions, the existing target detection technology is difficult to meet the needs of intelligent inspection.
Junfei TANG +5 more
doaj +1 more source
THE NIGERIAN COAL CORPORATION: AN EVALUATION OF PRODUCTION PERFORMANCE(1960 1987) [PDF]
COAL WAS DISCOVERED IN NIGERIA IN 1909 AND COAL MINING STARTED WITH A DRIFT MINE AT OGBETE, ENUGU IN 1915. SINCE 1958/59, WHEN COAL PRODUCTION REACHED ITS PEAK, THERE HAS BEEN A PERSISTENT FLUCTUATION IN THE AMOUNT OF COAL PRODUCED IN SUBSEQUENT YEARS ...
DR. GODWIN CHUKWUDUM NWAOBI
core
A Leaf‐Inspired Janus‐Structured Triboelectric‐Moisture Hybrid Energy Harvester
Advanced Energy Materials, EarlyView.This study proposes a bioinspired Janus structured energy‐leaf with hybrid triboelectric‐moisture hybrid energy harvesters. This hybrid energy harvester is demonstrated in an intelligent emergency system for effective distress signaling and evacuation guiding during potential crises.
Liang Wei +10 more
wiley +1 more source
Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology
Applied Economic Perspectives and Policy, EarlyView.ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková +4 more
wiley +1 more source
Meikuang AnquanThere are a lot of dangerous environment and large volume transportation tasks in the coal mining process. Improving the working quality of coal mine equipment is the key to the intelligent construction of coal mine. In order to improve the efficiency of
Tianfei WEN +3 more
doaj +1 more source
Agribusiness, EarlyView.ABSTRACT This study aims to explore the influence of Wine Tourism (WT) on the Sustainable Performance (SP) of wineries in Spain. It particularly investigates how Corporate Social Legitimacy (CSL) and Green Innovation (GI) may act as intermediary factors in this relationship.
Javier Martínez‐Falcó +3 more
wiley +1 more source
Design of a new type of dynamic quantitative loading system of wheel loader
Gong-kuang zidonghua, 2015 For the low efficient of existing coal shipment method, a new type of dynamic quantitative loading system of wheel loader was designed according to actual situation of coal enterprises.
ZONG Weilin +6 more
doaj +1 more source
The enviornmental assessment of a contemporary coal mining system [PDF]
A contemporary underground coal mine in eastern Kentucky was assessed in order to determine potential off-site and on-site environmental impacts associated with the mining system in the given environmental setting. A 4 section, continuous room and pillor
Dutzi, E. J. +3 more
core +1 more source