Results 31 to 40 of about 450,539 (268)
Coal industry in the context of Ukraine economic security [PDF]
, 2017 Purpose. To rate the main factors and indicators of the national economic security, in particular the degree of the country’s provision with primary natural resources which determine the global energy consumption trends. Methods.
Horbatova, V +3 more
core +2 more sources
Research progress on coal mine laser methane sensor [PDF]
, 2019 This paper discusses the research progress of low-power technology of laser methane sensors for coal mine. On the basis of environment of coal mines, such as ultra-long-distance transmission and high stability, a series of studies have been carried out ...
Grattan, K. T. V. +10 more
core +1 more source
ГІДРОАКУМУЛЮЮЧІ ЕЛЕКТРОСТАНЦІЇ ЯК ДЖЕРЕЛА РОЗПОДІЛЕНОЇ ГЕНЕРАЦІЇ У СКЛАДІ ПРОМИСЛОВИХ ЕНЕРГОСИСТЕМ
Праці Інституту електродинаміки Національної академії наук України, 2023 The article examines the economic aspects of the efficiency of power systems for mine loads, which include peak pumped-storage hydroelectric power plants that use reservoirs of the mine underground water drainage.
О.Ю. Михайленко +2 more
doaj +1 more source
Design of current sharing system for mine explosion-proof lithium power supply
Gong-kuang zidonghua, 2021 In order to solve the problem of uneven discharge current when multiple mine explosion-proof lithium power supplies are used in parallel, a current sharing system for mine explosion-proof lithium power supply is designed.
LI Qiwei1,2,3 +3 more
doaj +1 more source
Gong-kuang zidonghua, 2017 The standard stipulates product classification, general requirements, environmental conditions, power supply, system design requirements, basic functions, software functions, main technical indexes, transmission performance, power fluctuation ...
SUN Jiping
doaj +1 more source
Innovative aspects of underground coal gasification technology in mine conditions [PDF]
, 2018 Purpose. Development of innovative approaches in technological and technical solutions improvement for coal seam gasification. Methods. Carrying-out of native and world experience in the coal reserves development by underground gasification technology ...
Dychkovskyi, R +4 more
core +1 more source
New technologies and new equipments of coal mine monitoring
Gong-kuang zidonghua, 2015 The paper analyzed the national coal production，the total number of accidents, the death rate per million tons and the changes of serious accidents. On average per year, the coal production had increased by 194 million tons, the number of accidents had ...
SUN Jiping
doaj +1 more source
Research on Key Factors Affecting Power Supply and Demand Trend Based on Complex Correlation [PDF]
E3S Web of Conferences, 2020 The market behaviors of the supply and demand sides in the power market are the issues that market participants, operators and regulators are most concerned about. This article starts from the two dimensions of power generation market behavior and demand
Liu Dunnan +6 more
doaj +1 more source
Heat recovery from mineworkings: opportunities in the Glasgow area [PDF]
, 2017 Glasgow is one of many locations within the United Kingdom once dotted with a number of thriving coal mines. Before the suitability of the water stored in mines can be determined for use in ground source heat pump (GSHP) heating applications, it is ...
Aaen, Bjorn +6 more
core +1 more source
Research on composite resonator network with onstant—current output for current—fed ICPT systems
Gong-kuang zidonghua, 2018 In order to solve problem of constant current wireless power supply of different sensors used in coal mine safety monitoring and control system, a composite resonator compensation network for wireless power supply were studied based on current—fed ICPT ...
HOU Chun +3 more
doaj +1 more source