Results 71 to 80 of about 39,891 (249)
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
Development of diagnostic and prognostic algorithms for SF6 puffer circuit breakers from transient waveforms: a validation proposal [PDF]
, 2009 - This paper presents a validation proposal for development of diagnostic and prognostic algorithms for SF6 puffer circuit-breakers reproduced from actual site waveforms.
Kam, Shui-cheong, Ledwich, Gerard
core +1 more source
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
A capacitive high voltage DC circuit breaker incorporating a current limiting function
Zhejiang dianliDC circuit breakers， as one of the vital devices for fault clearance in DC power systems， significantly influence the secure and stable operation of the system.
TU Lizhong +4 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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People and Nature, EarlyView.Abstract Active outdoor play has been positioned in the literature as an opportunity to address concerns over climate (in)action and the rising trend of disconnection from the outdoors and nature. The objective of this systematic review was to examine associations between active outdoor play and people's connection to nature and/or environmental ...
Louise de Lannoy +10 more
wiley +1 more source
Short- circuit tests of circuit breakers [PDF]
, 2015 This paper deals with short-circuit tests of low voltage electrical devices. In the first part of this paper, there are described basic types of short- circuit tests and their principles.
Chorovský, P.
core
People and Nature, EarlyView.Abstract Nature‐based tourism is a rapidly growing subsector of the international tourism industry. However, capturing broad‐scale patterns of nature visits during touristic trips or visitors' appreciation of nature may be difficult using traditional data sources and methods. In this study, we harness geotagged social media data to understand the scale
Matti Hästbacka +4 more
wiley +1 more source
China Suspends Circuit Breakers [PDF]
, 2016 Circuit breakers are designed to slow down (or even halt) panicked selling. However, Chinese authorities recently suspended their newly implemented circuit breakers, as they seemed to be increasing panic (as opposed to reducing it).
Dolvin, Steven D.
core +1 more source