Results 11 to 20 of about 151,109 (221)
Proposal of revision for electrical section of Coal Mine Safety Regulatio
Gong-kuang zidonghua, 2014 The paper proposed that low-power and non-explosion-proof equipments such as general lighting lamps, equipments and instruments of communication and automation are prohibited to be used in coal mine underground; lighting lamps should adopt LED cold light
SUN Jiping
doaj +1 more source
Frontiers in Energy Research, 2022 With the motivation of electricity marketization, the demand for large-capacity electrochemical energy storage technology represented by prefabricated cabin energy storage systems is rapidly developing in power grids.
Chen Chen, Jun Lai, Minyuan Guan
doaj +1 more source
Design of novel intrinsically safe power supply with 'ia' grade
Gong-kuang zidonghua, 2017 According to working condition of mine-used power supply in coal mine underground, novel intrinsically safe power supply with 'ia' grade was designed. The power supply uses a fully enclosed AC-DC module to eliminate special flameproof enclosure, and has ...
YU Zhixue, FANG Xupeng, ZHAO Yang
doaj +1 more source
Gong-kuang zidonghua, 2019 Over-voltage and over-current protection are two forms of over-voltage and over-current protection sequences of intrinsic safety power supply. In order to study the influence of different protection sequence forms on safety performance of intrinsic ...
BAO Changjun +4 more
doaj +1 more source
Design of wide range DC input power module used in coal mine
Gong-kuang zidonghua, 2015 In view of problems that power supply voltage level and power type between mine-used sensors and DC power supply system is inconsistent, a design scheme of new type of wide range DC input and intrinsic safety type power module was put forward.
HU Yun +3 more
doaj +1 more source
Initial safety evaluation of Enterococcus faecium LBB.E81
Biotechnology & Biotechnological Equipment, 2021 Due to their antimicrobial activity Enterococcus faecium strains have a growing record of use as beneficial adjunct cultures in animal nutrition or components of probiotic preparations for humans.
Zoltan Urshev, Tsvetelina Yungareva
doaj +1 more source
Short circuit transient power analysis of hybrid intrinsically safe circuit
Gong-kuang zidonghua, 2023 Currently, research on the intrinsically safe features of intrinsically safe circuits mostly relies on the IEC spark experimental device as the experimental platform.
NIE Honglin +6 more
doaj +1 more source
Control of Foodborne Biological Hazards by Ionizing Radiations
Foods, 2020 Ionization radiations are used to ensure food safety and quality. This irradiation process uses ions of beta or gamma rays to inactivate or destroy the food spoilage pests, microorganisms and their toxins without significantly increasing the temperature ...
Muhammad Tanveer Munir, Michel Federighi
doaj +1 more source
Entropy, 2020 Condition monitoring and fault diagnosis of a rolling bearing is crucial to ensure the reliability and safety of a mechanical system. When local faults happen in a rolling bearing, the complexity of intrinsic oscillations of the vibration signals will ...
Songrong Luo, Wenxian Yang, Youxin Luo
doaj +1 more source
Using FPGA reconfigurable integrated circuits for monitoring, controlling and managing industrial processes in potentially explosive atmospheres [PDF]
MATEC Web of Conferences, 2022 The implementation of calculation architectures, data acquisition and processing systems, VLSI type integrated circuits within driving systems shows and increased trend in the industry, due to the advantages of such circuits compared to microcontrollers ...
Colda Cosmin +3 more
doaj +1 more source