Results 31 to 40 of about 200,429 (137)

Quantum maximum power transfer theorem

open access: yes, 2019
We discover the quantum analog of the well-known classical maximum power transfer theorem. Our theoretical framework considers the continuous steady-state problem of coherent energy transfer through an N-node bosonic network coupled to an external dissipative load. We present an exact solution for optimal power transfer in the form of the maximum power
Cortes, Cristian L., Jacob, Zubin
openaire   +2 more sources

Gouy-Stodola Theorem as a variational principle for open systems [PDF]

open access: yes, 2012
The recent researches in non equilibrium and far from equilibrium systems have been proved to be useful for their applications in different disciplines and many subjects.
Lucia, Umberto
core   +4 more sources

Selection criteria of dc-dc converter and control variable for MPPT of PV system utilized in heating and cooking applications

open access: yesCogent Engineering, 2017
This paper deals with the selection of dc-dc converter and control variable required to track the maximum power of photovoltaic (PV) array, to optimize the utilization of solar power.
Byamakesh Nayak   +2 more
doaj   +1 more source

Frequency-Domain Analysis of Linear Time-Periodic Systems [PDF]

open access: yes, 2004
In this paper, we study convergence of truncated representations of the frequency-response operator of a linear time-periodic system. The frequency-response operator is frequently called the harmonic transfer function. We introduce the concepts of input,
Bernhardsson, Bo   +2 more
core   +1 more source

Radiative heat transfer in nonlinear Kerr media [PDF]

open access: yes, 2015
We obtain a fluctuation--dissipation theorem describing thermal electromagnetic fluctuation effects in nonlinear media that we exploit in conjunction with a stochastic Langevin framework to study thermal radiation from Kerr ($\chi^{(3)}$) photonic ...
Johnson, Steven G.   +3 more
core   +2 more sources

Optimum load computation of a piezoelectric-based energy harvester

open access: yesTecnura
Objective: Maximum power extraction from piezoelectric energy harvesters is of key importance in the development of various current technologies. However, direct use of the maximum power transfer theorem on this type of energy harvester produces unstable
Andrés Felipe Gomez-Casseres
doaj   +1 more source

An Energy-Efficient Controller for Wirelessly-Powered Communication Networks

open access: yes, 2019
In a wirelessly-powered communication network (WPCN), an energy access point (E-AP) supplies the energy needs of the network nodes through radio frequency wave transmission, and the nodes store their received energy in their batteries for possible data ...
Makki, Behrooz   +5 more
core   +1 more source

Energy-Efficient Power Allocation in OFDM Systems with Wireless Information and Power Transfer

open access: yes, 2013
This paper considers an orthogonal frequency division multiplexing (OFDM) downlink point-to-point system with simultaneous wireless information and power transfer.
Lo, Ernest S.   +2 more
core   +1 more source

A Framework for Qualitative Analysis of Voltage Stability Indices (VSIs)

open access: yesIEEE Access
Voltage stability assessment (VSA) is invariably an essential step in the satisfactory operation of power system. For this, several Voltage Stability Indices (VSIs) based on 1) Existence of solution for voltage equations, 2) Maximum power transfer (MPT ...
Lokesh Kumar Yadav   +7 more
doaj   +1 more source

Inscribed Matter Communication: Part I

open access: yes, 2016
We provide a fundamental treatment of the molecular communication channel wherein "inscribed matter" is transmitted across a spatial gap to provide reliable signaling between a sender and receiver.
Mian, Ismat Saira, Rose, Christopher
core   +1 more source

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