Results 31 to 40 of about 26,402,257 (196)
Design of a high-performance mine-used intrinsically safe power supply
Gong-kuang zidonghua, 2019 For problems of poor electromagnetic immunity and weak load capacity of current intrinsically safe power supply, a high-performance mine-used intrinsically safe power supply was designed.
HUANG Hesong +3 more
doaj +1 more source
Gong-kuang zidonghua, 2020 For problems of large output voltage ripple-wave and poor intrinsic safety performance existed in mine-used intrinsic safety type power supply caused by large filtering capacitor of switching converter, a filtering capacitor resolution scheme was ...
CHEN Huili, LI Jie
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Study of large capacity power supply used for coal mine emergency facilities
Gong-kuang zidonghua, 2014 In view of problem that common accumulators used in underground coal mine have obvious constraints, the paper analyzed electricity demands of coal mine emergency facilities and characteristics of dry-charged lead-acid battery, developed large capacity ...
LI Meixiang, ZHOU Zhong, ZHANG Yong
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Firm Power Supply Project Committee Meeting
, 2021 Firm Power Supply Project Committee Meeting, September 15 ...
Utah Associated Municipal Power Systems;
core +6 more sources
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
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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
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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
Power Supply Technology of 5G Equipment in Underground Coal Mine
, 2020 This paper focuses on the study of power supply technology of 5G equipment in coal mine. Combined with the comparison of existing power supply modes and the existing problems, this paper comprehensively analyzes the design scheme of power supply in ...
MA Long
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld +5 more
wiley +1 more source