Results 31 to 40 of about 125,675 (299)

Enhanced Density Peak-Based Power Grid Reactive Voltage Partitioning

open access: yesEnergies, 2023
Clustering-based reactive voltage partitioning is successful in reducing grid cascading faults, by using clustering methods to categorize different power-consuming entities in the power grid into distinct regions.
Xingye Deng   +5 more
doaj   +1 more source

Automatic voltage regulation of synchronous generator with pole assignment self-tuning regulator [PDF]

open access: yes, 1991
An automatic voltage regulator (AVR) of a synchronous generator based on the pole assignment self-tuning regulator is proposed. The poles of the closed-loop transfer function of the system and the poles of the controller are analytically discussed for ...
Funabiki, Shigeyuki   +3 more
core   +1 more source

The conduction pathway of potassium channels is water free under physiological conditions. [PDF]

open access: yes, 2019
Ion conduction through potassium channels is a fundamental process of life. On the basis of crystallographic data, it was originally proposed that potassium ions and water molecules are transported through the selectivity filter in an alternating ...
Chevelkov, V.   +9 more
core   +1 more source

Direct evidence that scorpion α-toxins (site-3) modulate sodium channel inactivation by hindrance of voltage-sensor movements. [PDF]

open access: yesPLoS ONE, 2013
The position of the voltage-sensing transmembrane segment, S4, in voltage-gated ion channels as a function of voltage remains incompletely elucidated. Site-3 toxins bind primarily to the extracellular loops connecting transmembrane helical segments S1-S2
Zhongming Ma   +4 more
doaj   +1 more source

First-principles study of the switching mechanism of [2]catenane molecular electronic devices [PDF]

open access: yes, 2005
We present a first-principles study of the coherent charge transport properties of bistable [2]catenane molecular monolayers sandwiched between Au(111) electrodes.
Goddard, William A., III   +3 more
core   +1 more source

Passivity-Based Control of a Doubly Fed Induction Generator System under Unbalanced Grid Voltage Conditions

open access: yesEnergies, 2017
According to the theory of passivity-based control (PBC), this paper establishes a port-controlled Hamiltonian system with dissipation (PCHD) model for a doubly fed induction generator (DFIG) system under unbalanced grid voltage conditions and proposes a
Jiawei Huang, Honghua Wang, Chong Wang
doaj   +1 more source

Biogeography-based algorithm for high voltage electrode surface optimization of a single-phase GIS bus terminal [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2014
A new method applying the biogeography-based optimization (BBO) technique is presented for the optimization of high voltage electrode surfaces. The aim is to obtain the optimization of the electrode shape in order to achieve a uniform field ...
Padghan Purushottam, Mukherjee Abhijit
doaj   +1 more source

NBTI and Power Reduction Using an Input Vector Control and Supply Voltage Assignment Method

open access: yesAlgorithms, 2017
As technology scales, negative bias temperature instability (NBTI) becomes one of the primary failure mechanisms for Very Large Scale Integration (VLSI) circuits.
Peng Sun   +4 more
doaj   +1 more source

Construction and analysis of causally dynamic hybrid bond graphs [PDF]

open access: yes, 2013
Engineering systems are frequently abstracted to models with discontinuous behaviour (such as a switch or contact), and a hybrid model is one which contains continuous and discontinuous behaviours.
Asher GM   +23 more
core   +1 more source

Generating all graph coverings by permutation voltage assignments

open access: yesDiscrete Mathematics, 1977
AbstractThis paper introduces the permutation voltage graph construction, which is a generalization of Gross's ordinary voltage graph construction. It is shown that every covering of a given graph arises from some permutation voltage assignment in a symmetric group and that every regular covering (in the topological sense) arises from some ordinary ...
Gross, Jonathan L., Tucker, Thomas W.
openaire   +2 more sources

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