Results 11 to 20 of about 212,876 (197)

Design of mine-used adaptive wide-voltage power supply with explosion-proof and intrinsic safety

open access: yesGong-kuang zidonghua, 2013
For characteristics that power supplys in coal mine underground has multi input voltage grades and are susceptible to disturbed when big equipments are starting or stopping, the paper put forward a design scheme of adaptive wide-voltage power supply with
LIU Ya-hui, GUO Jiang-tao, LIN Yin
doaj   +1 more source

Analysis of influencing factors of short-circuit spark discharge in electric potential capacitance circuit

open access: yesGong-kuang zidonghua, 2020
Most of existing models and methods for research of capacitive circuit spark discharge and high-power intrinsic safety power supply only consider discharge characteristics of energy storage elements during discharge process, and do not consider influence
KANG Qian   +3 more
doaj   +1 more source

Meat consumption: Trends and quality matters [PDF]

open access: yes, 2014
peer-reviewedThis paper uses quality theory to identify opportunities for the meat sector that are consistent with trends in meat consumption. Meat consumption has increased and is likely to continue into the future.
Henchion, Maeve   +3 more
core   +1 more source

Power Supply Technology of 5G Equipment in Underground Coal Mine

open access: yesMeikuang Anquan, 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
doaj   +1 more source

Implementation of explosion safety regulations in design of a mobile robot for coal mines [PDF]

open access: yes, 2018
The article focuses on specific challenges of the design of a reconnaissance mobile robotic system aimed for inspection in underground coal mine areas after a catastrophic event.
Babjak, Ján   +5 more
core   +2 more sources

Are geographical indication products fostering public goods? some evidence from Europe [PDF]

open access: yes, 2019
Within the framework of multifunctional conceptualisation, the authors have investigated the level of public goods embedded in Agri-food geographical indication productsPostprint (published ...
Arfini, Filippo   +4 more
core   +4 more sources

Design of quasi-resonant flyback secondary intrinsically safe power supply [PDF]

open access: yesArchives of Electrical Engineering, 2019
In order to improve the efficiency and ensure the security of power supply used in a mine, this paper mainly studies the quasi-resonant flyback secondary power supply and analyzes its operational principles based on the requirements of soft-switching ...
Shengnan Lu, Bin Wang
doaj   +1 more source

Short circuit transient power analysis of hybrid intrinsically safe circuit

open access: yesGong-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

Design of wide range DC input power module used in coal mine

open access: yesGong-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

A goal programming methodology for multiobjective optimization of distributed energy hubs operation [PDF]

open access: yes, 2014
This paper addresses the problem of optimal energy flow management in multicarrier energy networks in the presence of interconnected energy hubs. The overall problem is here formalized by a nonlinear constrained multiobjective optimization problem and ...
A. Vaccaro   +16 more
core   +2 more sources

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