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Advanced Search Results For "FREQUENCY-domain analysis"

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 "FREQUENCY-domain analysis"
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Remote sea-surface temperature variations (2001–2019) in Kuwait Bay: Time series analysis in frequency and time domains.

Publication Type: Academic Journal

Source(s): Kuwait Journal of Science. Jul2022, Vol. 49 Issue 3, p1-17. 17p.

Abstract: Because of the direct link between sea temperature and aquatic biodiversity, there is a need to analyze the temporal changes in sea surface temperature in various water bodies, especially the semi-enclosed ones. There has been substantial research unde...

Vibration and Constitutive Relations of Viscoelastic Cantilever Beam of HTPB Propellant.

Publication Type: Academic Journal

Source(s): Mathematical Problems in Engineering. 6/1/2022, p1-9. 9p.


Abstract: A cantilever beam test specimen of a viscoelastic material, which is sourced from the hydroxy-terminated polybutadiene (HTPB) propellant, has been made. The traditional experimental modal analysis (EMA) is performed using the SIEMENS TESTLAB software t...

An Electrostatic Approach for Simulation of Grounding Systems Lightning Response in Time Domain.

Publication Type: Academic Journal

Source(s): IEEE Transactions on Power Delivery. Dec2022, Vol. 37 Issue 6, p5289-5298. 10p.


Abstract: Most of the literatures dealing with time domain simulation of grounding system response to lightning surges use an electrostatic approach. In this approach frequency dependence of soil electrical parameters and plane-wave propagation constant are not ...

Experimental Validation of Ultra-Shortened 3D Finite Element Models for Frequency-Domain Analyses of Three-Core Armored Cables.

Publication Type: Academic Journal

Source(s): IEEE Transactions on Power Delivery. Dec2022, Vol. 37 Issue 6, p4766-4774. 9p.

Abstract: Recently, large offshore wind power plants have been installed far from the shore, using long HVAC three-core armored cables to export power. Its high capacitance may contribute to the appearance of unwanted phenomena, such as overvoltages or resonance...

Variable Switching Frequency Scheme Minimizing Inductor Saturation Margin for Totem-Pole Rectifier Based on Frequency-Domain Ripple Analysis.

Publication Type: Academic Journal

Source(s): IEEE Transactions on Industrial Electronics. Dec2022, Vol. 69 Issue 12, p12632-12640. 9p.

Abstract: Powdered iron core (PIC) inductors demand a considerable design margin to avoid magnetic saturation, limiting the converters’ power density. This article formulates a frequency-domain method to assess the saturation’s influence on the current ripple, a...

Robust convergence conditions of iterative learning control for time‐delay systems under random non‐repetitive uncertainties.

Publication Type: Academic Journal

Source(s): IET Control Theory & Applications (Wiley-Blackwell). Jan2023, Vol. 17 Issue 2, p144-159. 16p.

Abstract: Some of the most fundamental assumptions in the design of iterative learning control (ILC) for uncertain systems are the strict repetitiveness (i.e. iteration‐independence) of uncertainties in all factors of plant dynamic, external disturbances, initia...


Publication Type: Academic Journal

Source(s): Singapore Economic Review. Dec2022, Vol. 67 Issue 6, p1951-1986. 36p. 1 Chart, 8 Graphs.

Abstract: This paper employs the local Bayesian likelihood methodology to estimate a medium-scale dynamic stochastic general equilibrium (DSGE) model on different frequencies and uses frequency-domain tools to evaluate the time-varying parameter model and the fi...

Current Harmonics Analysis and Design for Load-Independent ZVS Single-Switch Resonant DC/DC Converter.

Publication Type: Academic Journal

Source(s): IEEE Transactions on Power Electronics. Sep2022, Vol. 37 Issue 9, p10877-10888. 12p.

Abstract: This article presents a new design theory named current harmonics analysis (CHA) for designing load-independent zero voltage switching (LI-ZVS) single-switch resonant dc/dc converters. Compared to the traditional VDS shaping analysis method, the propos...

Vibration Analysis and Experimental Study of GIS Busbar Enclosure under Electric Force.

Publication Type: Academic Journal

Source(s): Shock & Vibration. 1/30/2022, p1-8. 8p.

Abstract: To explore the vibration response of the GIS busbar enclosure in a strong electric field, the electric force on the busbar enclosure was solved by the voltage in the circuit and the principle of virtual work. The vibration mode was obtained by finite e...

Maiden application of fractional order PID plus second order derivative controller in automatic voltage regulator.

Publication Type: Academic Journal

Source(s): International Transactions on Electrical Energy Systems. Dec2021, Vol. 31 Issue 12, p1-22. 22p.

Abstract: This paper proposes a maiden application of the fractional‐order proportional‐integral‐derivative plus the second‐order derivative controller called FOPIDD2 (PIλDμD2) to achieve better transient response at a terminal voltage of automatic voltage regul...