Results 11 to 20 of about 142,677 (303)

Design and Testing of a Low-Tech DEW Generator for Determining Electromagnetic Immunity of Standard Electronic Circuits

open access: yesEnergies, 2021
This article describes the effect of high-power electromagnetic environments (HPEMs) on the operation of all basic elements of electrical power networks. Frequency bands are defined for the HPEM environments. Attention is focused particularly on directed
Libor Dražan   +2 more
doaj   +1 more source

A general waveguide circuit theory

open access: yesJournal of Research of the National Institute of Standards and Technology, 1992
This work generalizes and extends the classical circuit theory of electromagnetic waveguides. Unlike the conventional theory, the present formulation applies to all waveguides composed of linear, isotropic material, even those involving lossy conductors and hybrid mode fields, in a fully rigorous way.
Marks, Roger B., Williams, Dylan F.
openaire   +2 more sources

Employment of electric torch discharge and a steam-gas generator in surface schooping of materials [PDF]

open access: yesРадиофизика и электроника, 2020
Subject and Purpose. The present paper is concerned with the method of surface schooping of materials using high-frequency torch discharge (HFTD) and glycerol vapor as a base for dissolving activating additives to the working gas. To approach the problem,
A.O. Puzanov
doaj   +1 more source

Application of chaos and extension theory to fault diagnosis of three-phase synchronous generators

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2020
This study applied an extension algorithm combined with the Chaos Theory to the fault diagnosis of the three-phase synchronous generator. First, the three-phase synchronous generator is classified, including normal, carbon brush fault, three-phase ...
Shiue Der Lu   +2 more
doaj   +1 more source

A New Effective Shift Rule for M-Sequences

open access: yesIEEE Access, 2020
Pseudo-random sequences have been extensively used in design theory, coding theory, and cryptographic system. Pseudo-random sequences generator based on feedback shift register is an important component of a symmetric crypto-system, which is circuit ...
Xiaofang Wang   +2 more
doaj   +1 more source

Analysis of Internally Bandlimited Multistage Cubic-Term Generators for RF Receivers [PDF]

open access: yes, 2009
Adaptive feedforward error cancellation applied to correct distortion arising from third-order nonlinearities in RF receivers requires low-noise low-power reference cubic nonidealities.
Hajimiri, Ali, Keehr, Edward A.
core   +1 more source

Calculation and Analysis of Rotor Thermal Static Field for Inter-Turn Short Circuit of Large Hydro-Generator Excitation Winding

open access: yesEnergies, 2019
Rotor winding inter-turn short circuit a common fault in hydro-generators. This fault would change the temperature, stress, and other thermal fields of a rotor and threaten the safe operation of the generator.
Junqing Li, Luo Wang
doaj   +1 more source

Equivalent Circuit Theory-Assisted Deep Learning for Accelerated Generative Design of Metasurfaces

open access: yesIEEE Transactions on Antennas and Propagation, 2022
In this article, we propose an equivalent circuit theory-assisted deep learning approach to accelerate the design of metasurfaces. By combining the filter equivalent circuit theory and a sophisticated deep learning model, designers can achieve efficient metasurface designs.
Zhaohui Wei   +6 more
openaire   +2 more sources

Voltage-Mode Four-Phase Sinusoidal Generator and Its Useful Extensions

open access: yesActive and Passive Electronic Components, 2013
This paper introduces a new voltage-mode second-order sinusoidal generator circuit with four active elements and six passive elements, including grounded capacitors. The frequency and condition of oscillation can be independently controlled.
Sudhanshu Maheshwari
doaj   +1 more source

Theoretical and experimental research on control strategy of maximum power point tracking for monolayer thermoelectric generator considering the degree of disturbance

open access: yesEnergy Reports, 2022
In this paper, the simulation model of thermoelectric generator and maximum power point tracking control (MPPT) DC/DC circuit is set up from the theory and mathematical formula. On this basis, this paper completes the maximum power point tracking control
Xinyu Liu   +7 more
doaj   +1 more source

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