Results 61 to 70 of about 39,622 (243)
Circuit breakers for addiction [PDF]
Internal Medicine Journal, 2007 AbstractThe phenomenon of addiction is complex, although its expression clinically is relatively straightforward. There is a series of neurophysiological changes that mediate changes in the mesolimbic and mesocortical systems which in turn lead to disturbances in reward mechanisms.
openaire +2 more sources
Land Degradation &Development, EarlyView.ABSTRACT Forest ecosystem services (ESs) are garnering increasing public attention as awareness grows regarding society's fundamental dependence on them for well‐being. Forest fires, one of the major disturbances of ESs, are becoming more frequent and destructive, exacerbated in part by climate change.
Emanuele Spada +6 more
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Chengshi guidao jiaotong yanjiuObjective Arc extinction technology for DC (direct current) is one of the design challenges in urban rail transit traction power supply systems. Therefore, it is necessary to analyze the principles of DC opening and arc extinction for main DC fast ...
MENG Junfeng +3 more
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Известия высших учебных заведений: Проблемы энергетики, 2019 : The article presents an algorithm for estimating reliability parameters - probability of failure-free operation time and failure rate of low-voltage switching devices based on statistical data on failures of circuit breakers installed in control and ...
E. I. Gracheva +3 more
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Simulation study on arc motion process of DC miniature circuit breakers
AIP Advances, 2023 Based on the theory of magnetohydrodynamics, a mathematical model of air arc in the arc extinguishing chamber of a DC miniature circuit breaker was established. By coupling external circuit characteristics and contact movement process, the motion process
Dezhi Xiong +3 more
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Influence of UHV GIL access on transient recovery voltage of circuit breaker
电力工程技术, 2022 The access of ultra high voltage (UHV) gas-insulated transmission line (GIL) affects both the transient recovery voltage (TRV) amplitude and the rate of rise of TRV (RRRV) of circuit breakers,which may endanger the breaking capacity of circuit breakers ...
SUN Yi +5 more
doaj +1 more source
, 2013 Following the Flash Crash in 2010, the SEC implemented new trading curbs. Following continued discussion, these curbs have been updated once again--for both individual stocks and the market as a whole.
Dolvin, Steven D.
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Laser &Photonics Reviews, EarlyView.Optically confined gold nanorods exhibit cooperative light‐driven dynamics, forming mobile end‐to‐end dimers with orientation‐dependent propulsion. Using structured laser traps and an opto‐thermo‐hydrodynamic model, we uncover how optical binding, polarization‐induced torque, and near‐surface hydrodynamics govern their motion.
José A. Rodrigo, Tatiana Alieva
wiley +1 more source
IEEE Access, 2020 Spring operation mechanism is widely used in high voltage circuit breakers, and its reliability is related to the ability of the circuit breaker breaking fault current. During the life cycle of spring operating mechanism, stress relaxation, metal fatigue,
Yakui Liu +5 more
doaj +1 more source
Two terminal current limiter [PDF]
, 1970 Two terminal device protects dc electronic circuits and experimental solid state devices, and replaces fuses and circuit breakers directly. The device consists of two transistors and two resistors and draws its necessary supply voltage from power source ...
Doubt, L. S.
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