Results 101 to 110 of about 78,351 (202)

Empirical Model of a High-Temperature Proton Exchange Membrane Fuel Cell for Diagnostics Based on the Test Without Active Gases Procedure

open access: yesTASK Quarterly
This paper presents a static electrical model developed to analyze results from the Test Without Active Gases (TWAG) procedure, which characterizes fuel cell behavior in the absence of electrochemically active gases.
Wojciech Rosiński   +2 more
doaj   +1 more source

Experimental Observation of Topological Disclination States in Lossy Electric Circuits

open access: yes
Topological phase transitions can be remarkably induced purely by manipulating gain and loss mechanisms, offering a novel approach to engineering topological properties. Recent theoretical studies have revealed gain-loss-induced topological disclination states, along with the associated fractional charge trapped at the disclination sites.
Liu, Jin   +8 more
openaire   +2 more sources

Transmission Expansion Planning Considering Energy Storage

open access: yes, 2014
In electricity transmission networks, energy storage systems (ESS) provide a means of upgrade deferral by smoothing supply and matching demand. We develop a mixed integer programming (MIP) extension to the transmission network expansion planning (TEP ...
Ernst, Andreas T.   +2 more
core   +1 more source

Asimov's Coming Back [PDF]

open access: yes, 2006
Ever since the word ‘ROBOT’ first appeared in a science\ud fiction in 1921, scientists and engineers have been trying\ud different ways to create it. Present technologies in\ud mechanical and electrical engineering makes it possible\ud to have robots in ...
Wang, Mr. L.
core  

A Generalized Approach to the Calculation Procedure of Distribution Network Steady-state and Transient Regime [PDF]

open access: yesProblems of the Regional Energetics, 2015
The low-voltage electrical distribution networks are characterized by ramified topology and spatial distribution of the consumers connected to the power supply. This leads to certain difficulties in calculation of such circuits even in the case of steady
Berzan V.   +3 more
doaj  

Author Correction: Realization of quasicrystalline quadrupole topological insulators in electrical circuits [PDF]

open access: yesCommunications Physics, 2021
Bo Lv   +11 more
openaire   +2 more sources

Bidirectional Hybrid DC Circuit Breaker With Zero Voltage and Current Switching for Radar Power System

open access: yesIEEE Open Journal of Industry Applications
This article proposes a novel zero-voltage switching (ZVS) and zero-current switching (ZCS)-based hybrid dc circuit breaker for a radar power system. Long-range radars demand huge power, in the order of hundreds of kW. Radar's phased array antenna
Nandakumar Saminathan   +5 more
doaj   +1 more source

Thermoelectric Generator Circuit With Tree Topology and Evolutionary Reconfiguration

open access: yesIEEE Access
This paper presents an original technique for the dynamic reconfiguration of a thermoelectric generators (TEGs) electric mesh. The novelty of the method is the use of a unique binary tree topology of the switching circuit, as well as the designed ...
Tomasz Golonek, Jan Machniewski
doaj   +1 more source

Observation of Multiple Topological edge States in Square-Root electric circuits

open access: yesAcademic Journal of Science and Technology
Square-root topological states are new topological phases, whose intriguing topological properties are inherited from the parent lattice Hamiltonian. Because of the square-root procedure, the bulk gap of the parent Hamiltonian is doubled. In this letter, we report the observation of the square-root topological insulators (SRTIs) in topological LC ...
Jingxiang Gao   +4 more
openaire   +1 more source

Unified linear response theory of quantum electronic circuits

open access: yesnpj Quantum Information
Modeling the electrical response of multi-level quantum systems at finite frequency has been typically performed in the context of two incomplete paradigms: (i) input-output theory, which is valid at any frequency but neglects dynamic losses, and (ii ...
L. Peri   +3 more
doaj   +1 more source

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