Results 31 to 40 of about 159,458 (294)

Fractional order impedance models as rising tools for quantification of unconscious analgesia [PDF]

open access: yes, 2013
This research focuses on modeling the diffusion process that occurs in the human body when an analgesic drug is taken up, by using fractional-order impedance models (FOIMs).
Chevalier, Amélie   +3 more
core   +1 more source

Design of a Wideband Inductively Coupled Loop Feed Patch Antenna for UHF RFID Tag [PDF]

open access: yes, 2015
A planar wideband patch antenna for ultra-high frequency (UHF) radio frequency identification (RFID) tag for metallic applications is presented in this research work.
Bashri, M. S. R.   +2 more
core   +2 more sources

Numerical and Experimental Analysis of the Effect of Acoustic Loads on the Source Characterization for an Internal Combustion Engine Exhaust System

open access: yesIEEE Access, 2020
The identification of source characteristics, commonly characterized as the source strength and source impedance, is essential for predicting the acoustic performance of an internal combustion (IC) engine exhaust system.
Haitao Liu, Yonghua Chen, Qian Xiao
doaj   +1 more source

Effective electrothermal analysis of electronic devices and systems with parameterized macromodeling [PDF]

open access: yes, 2015
We propose a parameterized macromodeling methodology to effectively and accurately carry out dynamic electrothermal (ET) simulations of electronic components and systems, while taking into account the influence of key design parameters on the system ...
d'Alessandro, Vincenzo   +6 more
core   +1 more source

Normal mode identification for impedance boundary conditions [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1983
When using the plane wave reflection coefficient (impedance condition) to represent bottom interaction for a normal mode calculation, counting the number of eigenfunction zeroes to identify normal modes is impractical. A method for identifying these modes by knowing the characteristics of the reflection coefficient is presented [R. A. Koch, P.
Robert A. Koch   +2 more
openaire   +1 more source

Compound Damages Detection for Rotors by the Coupled Piezoelectric Impedance

open access: yesIEEE Access, 2018
The rotor is a key component of rotating machinery, thus it is of great importance to quantitatively detect its damage. Since the sensitivity matrix in the impedance-based rotor damage identification model with a single piezoelectric transducer has lower
Yongfang Mao, Yi Qin, Aibing Zhang
doaj   +1 more source

Topology and Impedance Identification Method of Low-Voltage Distribution Network Based on Smart Meter Measurements

open access: yesFrontiers in Energy Research, 2022
In recent years, distributed photovoltaic facilities and distributed energy storage are widely connected to a low-voltage distribution network, which makes the topology of the low-voltage distribution network change faster, and the online identification ...
Li Tong, Weijian Chai, Dongqi Wu
doaj   +1 more source

Identification of cracks with non linear impedances [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2003
Summary: We consider the inverse problem of determining a crack submitted to a nonlinear impedance law. Identifiability and local Lipschitz stability results are proved for both the crack and the impedance.
Jaoua, Mohamed   +2 more
openaire   +1 more source

Identification of Three-Phase Grid Impedance in the Presence of Parallel Converters

open access: yesEnergies, 2019
Grid impedance is an important parameter which affects the control performance of grid-connected power converters. Several methods already exist for optimizing the converter control system based on knowledge of grid impedance value.
Roni Luhtala   +6 more
doaj   +1 more source

An equivalent circuit for the evaluation of cross-country fault currents in medium voltage (MV) distribution networks [PDF]

open access: yes, 2018
A Cross-Country Fault (CCF) is the simultaneous occurrence of a couple of Line-to-Ground Faults (LGFs), affecting different phases of same feeder or of two distinct ones, at different fault locations.
Gatta, Fabio Massimo   +3 more
core   +1 more source

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