Results 61 to 70 of about 1,510,051 (362)
SUSTAINABLE DEVELOPMENT OF TERRITORIES OF MINING REGIONS [PDF]
, 2018 Developing innovative technologies of mining coal seams and increasing the competitiveness of coal produced and providing further diversification of the mine using the "post-mining" concept as the basis for sustainable ...
DUBOVIK, Oleksandr, LOHUNOVA, Oleksandra
core
Advanced Materials, EarlyView.This review summarizes the principles and challenges of nonaqueous lithium‐oxygen batteries and recent advances in cathode catalysts, including carbon‐based materials, metals, oxides, sulfides, nitrides, carbides, and redox mediators. It highlights emerging design strategies and artificial intelligence‐driven approaches, emphasizing data‐assisted ...
Yuqing Yao +8 more
wiley +1 more source
Research into the process of preparation of Ukrainian coal by the oil aggregation method [PDF]
, 2009 We conducted a study into concentration of Donetsk coal with varying degrees of coalification – anthracite and grade G – by the method of oil aggregation. We determined the character of impact of the following factors on the results of oil aggregation of
Biletskyi, V. S. +8 more
core +2 more sources
ASPECTS REGARDING THE TECHNICAL EXPERTISE OF THE ROTATIONAL MECHANISM OF COAL MINING MACHINE - Part I [PDF]
Fiabilitate şi Durabilitate, 2019 In this paper we presents technical conditions for the rotational mechanism of the coal mining machine after we made technical expertise. The rehabilitation at the rotational mechanism will be subjected, it will be done by performing the intervention ...
Marius Liviu CÎRŢÎNĂ +2 more
doaj
Історія науки і техніки, 2020 The activity of the mining industry in the South of the Russian Empire, of which Ukraine was part at that time, is analyzed. It is noted that the rapid development of industry in the Russian Empire after the abolition of serfdom in 1861 opened up ...
Maryna Gutnyk, Serhii Radohuz
doaj +1 more source
A novel dry coal feeding concept for high-pressure gasifiers [PDF]
, 1977 A novel dry coal feeding concept was developed for injecting ground coal into high-pressure gasifiers. Significant power savings are projected because the coal is injected directly with a ram and there is no requirement for pumping large volumes of gas ...
Davis, H. C., Trumbull, H. E.
core +1 more source
Advanced Materials, EarlyView.By designing a P/N‐ and π–π interacting biphenyl‐containing diol as hard segments but side groups, a strong, tough, fire‐extinguishing and self‐healing elastomer is developed, demonstrating a break strain of ∼2500%, a toughness of 379 MJ/m3 and a tensile strength of 46 MPa, as well as a healing efficiency of 95% (tensile strength) and 99% (break strain)
Yijiao Xue +11 more
wiley +1 more source
Environmental Research: EnergyUnderstanding the costs and the spatial distribution of health and employment outcomes of low-carbon electricity pathways is critical to enable an equitable transition.
Haozhe Yang +8 more
doaj +1 more source
Selection of the optimal feeding variant for hammer crushers in order to achieve the designed parameters of crushed coal [PDF]
Mining and Metallurgy Engineering BorThe process of coal crushing for the Kostolac "B" Thermal Power Plant is carried out at the "Drmno" crushing plant using two hammer crushers of Czechoslovak production (PSP Engineering a.s.
Stojičić Ivan +4 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.This review systematically explains the synthesis, properties, and energy storage and conversion applications of vanadium carbides. We introduce the structural and the synthetic strategies and reviewed recent developments in the material synthesis processes. The emerging applications of vanadium carbides in energy storage and conversion are highlighted.
Swathy B. Saseendran +2 more
wiley +1 more source