Results 261 to 270 of about 14,176,106 (302)
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Railway lines models for impedance evaluation
8th International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.98EX227), 2002This paper deals with modeling of electrified railway lines using the multiconductor transmission lines (MTLs) approach, in order to investigate the harmonic impedance seen at the train pantograph at various locations along the line. A railway line model has been studied and a sensitivity analysis with respect to the structure of the model has been ...
P. Ferrari, POZZOBON, PAOLO
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Beam Measurements of the LHC Impedance and Validation of the Impedance Model
2014Different measurements of the longitudinal impedance of the LHC done with single bunches with various intensities and longitudinal emittances during measurement sessions in 2011-2012 are compared with particle simulations based on the existing LHC impedance model.
Esteban Müller, Juan +5 more
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European Journal of Physics, 2015
Impedance models of pipes can be used to estimate resonant frequencies of standing waves and model acoustic pressure of closed and open ended pipes. Modelling a pipe with impedance methods allows additional variations to the pipe to be included in the overall model as a system.
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Impedance models of pipes can be used to estimate resonant frequencies of standing waves and model acoustic pressure of closed and open ended pipes. Modelling a pipe with impedance methods allows additional variations to the pipe to be included in the overall model as a system.
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Electrode Modelling in Electrical Impedance Tomography
SIAM Journal on Applied Mathematics, 1992Summary: In electrical impedance tomography, measurements of an applied electrical current and the corresponding electrical potential are made on a finite number of electrodes placed on the boundary of an object. These measurements are then used to reconstruct the electrical conductivity distribution in the interior of the object.
Paulson, Kevin +2 more
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Modelling impedance for 3D impedimetric biosensor
2015 9th International Conference on Sensing Technology (ICST), 2015There is a growing need for new biosensing technologies that are more rapid and convenient to use for onsite sensing. Impedance-based electrochemical sensor is a promising candidate due to simplicity of its sensing mechanism. However, like other emerging biosensors, specificity, sensitivity, and reliability are major obstacles that limit their use in ...
Johnny Yeh +4 more
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The Proton Synchrotron Transverse impedance model
2014The current knowledge of the transverse impedance of the CERN Proton Synchrotron (PS) has been established by theoretical computations, electromagnetic simulations and beam-based measurements at different energies. The transverse coherent tune and phase advance shifts as a function of intensity have been measured in order to evaluate the total ...
PERSICHELLI, SERENA +5 more
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Measurement of the glottal impedance with a mechanical model
The Journal of the Acoustical Society of America, 1989An approximate but realistic model of the human larynx was constructed to gain better knowledge of the complex glottal impedance and its dependence on glottal width, flow, and frequency. The glottal width was adjustable from 0 to 3 mm, the flow from 0 to 500 cm3/s.
S, Rösler, H W, Strube
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Experimental modelling of biomechanical impedance characteristics
Medical & Biological Engineering & Computing, 1986New experimental modelling of biomechanical impedance is proposed. The parameters which express the impedance characteristics are simply determined by impedance measurement. Audiofrequencies below about 1000 Hz and comparatively lower preloads (below about 6370 kg m−2) are chosen as the research domain.
T, Yamamoto, H, Oka
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(Keynote) Modeling of Impedance
ECS Meeting Abstracts, 2016Sophisticated models exist for many electrochemical systems, based on physical and chemical laws. These may be transient or steady. They generally involve many physical quantities, and a corresponding number of governing equations, distributed over a spatial region.
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Modeling Degradation in SOEC Impedance Spectra
Journal of The Electrochemical Society, 2013Solid oxide cell (SOC) performance is limited by various processes. One way to investigate these processes is by electrochemical impedance spectroscopy. In order to quantify and characterize the processes, an equivalent circuit can be used to model the SOC impedance spectra (IS).
Jensen, Soren Hojgaard +4 more
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