Results 231 to 240 of about 51,311 (264)

Computing coupled-cluster wave functions with arbitrary excitations

The Journal of Chemical Physics, 2000
An algorithm is presented for solving coupled-cluster (CC) equations by successive diagonalization of 2×2 matrices. It is more expensive than usual procedures, but it is capable of solving a CC problem where any arbitrary excitation is included in the cluster operator.
Mihály Kállay, Péter R. Surján
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Ferrite core loss measurement with arbitrary wave excitation

2004 International Conference on Power System Technology, 2004. PowerCon 2004., 2005
This paper studies the methods of loss measurement for ferrite cores under sinusoidal and nonsinusoidal excitations. For the sinusoidal excitation, a resonant method is introduced and the impedance angle of the ferrite inductor under study is reduced to zero, which makes the measurement least sensitive to the influence of parasitic impedance. Hence the
null Mang Daming, S. Birlasekaran, null Sim Tsi Tang, null Hum Peng Cheng   +3 more
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Arbitrary excitation of high-contrast thin dielectric disk

Proceedings of CAOL'2003. 1st International Conference on Advanced Optoelectronics and Lasers. Jontly with 1st Workshop on Precision Oscillations in Electronics and Optics (IEEE Cat. No.03EX715), 2004
One of the simplified models of semiconductor microdisk is based on the concept of the effective refraction index and leads to the 2D approximation that neglects the out-of-plane radiation of the lasing mode field. This paper aims to characterize this feature while still assuming the disk thin and high-contrast.
M.V. Balaban, A.I. Nosich
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A heuristic prediction of the number of solitons that are excited by an arbitrary potential

Physica Scripta, 1992
The number of Korteweg-de Vries solitons that are excited from an arbitrary potential are determined using a simple intuitive model. The results are compared with a numerical study of a nonlinear transmission line. The technique can be extended to nonlinear Schrodinger solitons.
Karl E Lönngren, Paul Hansen, Tom Kuusela   +2 more
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A unified study on the output probability distribution of arbitrary linear vibratory systems with arbitrary random excitation

Journal of Sound and Vibration, 1975
Abstract New theoretical expressions of probability density and cumulative distribution functions for the output response are exactly derived without any simplification of the problem and any approximation of analysis in the case when a general random signal with arbitrary probability distribution and correlation functions is passed through an ...
Ohta, M., Hatakeyama, K., Hiromitsu, S., Yamaguchi, S.   +3 more
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Electromagnetic Excitation of a Spherical Medium by an Arbitrary Dipole and Related Inverse Problems

Studies in Applied Mathematics, 2018
AbstractA piecewise homogeneous spherical medium is excited by an external or internal electric dipole with arbitrary location and polarization. The dyadic Green's function of the medium is determined analytically. Then, the vector electric fields and far‐field patterns are obtained.
Prokopios Prokopiou, Nikolaos L. Tsitsas
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HfZrO Ferroelectric Characterization and Parameterization of Response to Arbitrary Excitation Waveform

2019 IEEE SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S), 2019
Response of a metal\ferroelectric Hf 0.5 Zr 0.5 O 2 \metal capacitor to an arbitrary excitation is investigated by polarization reversal curves and switching speed characterization. Results are explained in a steady-state Preisach as well as a modified transient NLS model framework. Applicability and limitations of each model are discussed.
Md Nur K. Alam, M. Thesberg, B. Kaczer, Ph. Roussel, B. Vermeulen, B. Truijen, M. I. Popovici, L.-A. Ragnarsson, A. S. Verhulst, N. Horiguchi, M. Heyns, J. Van Houdt   +11 more
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A high frequency core loss measurement method for arbitrary excitations

2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2011
Recently, point of load (POL) converter are pushed to higher switching frequency for higher power density. As the frequency increases, magnetic core loss becomes a significant part of the total loss of POL converters. Accurate measurement of this part of loss is important for the converter design.
Mingkai Mu, Fred C. Lee, Qiang Li, David Gilham, Khai D. T. Ngo   +4 more
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Electromagnetic behaviour of circular wire loops with arbitrary excitation and loading

Proceedings of the Institution of Electrical Engineers, 1968
A general analysis of circular wire loops with arbitrary electromagnetic excitation and admittance loading is given. The analysis is made in terms of generalised network parameters and is equivalent to previous analyses of particular problems. Some important special cases of the general theory are circular-loop antennas, loaded-loop antennas, circular ...
R.F. Harrington, J. Mautz
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Generating piecewise-constant excitations with an arbitrary power spectrum

International Conference on Control '94, 1994
In this paper, a comparison is made between zero-order-hold-noise (ZOH-noise) and ZOH-periodic excitations. Their ability to excite a system with maximum power and a specified power spectrum while the peak value of the excitation is restricted is studied. >
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