Results 31 to 40 of about 126,199 (290)

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

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

Electronic Excitations and Insulator-Metal Transition in Poly(3-hexylthiophene) Organic Field-Effect Transistors [PDF]

open access: yes, 2006
We carry out a comprehensive theoretical and experimental study of charge injection in Poly(3-hexylthiophene) (P3HT) to determine the most likely scenario for metal-insulator transition in this system.
D. Baeriswyl   +7 more
core   +2 more sources

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

Operating Power Grids with Few Flow Control Buses

open access: yes, 2015
Future power grids will offer enhanced controllability due to the increased availability of power flow control units (FACTS). As the installation of control units in the grid is an expensive investment, we are interested in using few controllers to ...
Leibfried, Thomas   +7 more
core   +1 more source

Proportional-integral-plus control applications of state-dependent parameter models [PDF]

open access: yes, 2007
This paper considers proportional-integral-plus (PIP) control of non-linear systems defined by state-dependent parameter models, with particular emphasis on three practical demonstrators: a microclimate test chamber, a 1/5th-scale laboratory ...
Ako, S.   +3 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

Attack detection design for dc microgrid using eigenvalue assignment approach

open access: yesEnergy Reports, 2021
DC microgrids (MGs) are complex systems connecting a number of renewable energy sources to different types of loads based on distributed networks. However, the strong reliance on communication networks makes DC MGs vulnerable to intentional cyber-attacks.
Sen Tan   +5 more
doaj   +1 more source

Fano Effect in a Few-Electron Quantum Dot

open access: yes, 2007
We have studied the Fano effect in a few-electron quantum dot side-coupled to a quantum wire. The conductance of the wire, which shows an ordinal staircase-like quantization without the dot, is modified through the interference (the Fano effect) and the ...
Austing D. G.   +20 more
core   +1 more source

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