Results 231 to 240 of about 110,292 (263)

A Semi-Analytical Model for Perforated Pipe Mufflers

14th AIAA/CEAS Aeroacoustics Conference (29th AIAA Aeroacoustics Conference), 2008
A quasi-steady semi-analytical model is proposed to predict the grazing-bias flow in a perforated-pipe muffler at low Mach numbers for high Reynolds numbers based on the diameter of the perforation. This model allows both the prediction of the steady flow distribution through a muffler and the prediction of the acoustical response of the perforated ...
Guo, Y., Tonon, D., Margiotta, L., Schram, C.F., Hofmans, G.C.J., Hirschberg, A.   +5 more
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A semi-analytical extraction method for transformer model

2014 International Symposium on Integrated Circuits (ISIC), 2014
A novel compact model based on 2-π architecture for millimeter wave circuits on-chip transformer is presented. The model is validated through experimental data of IBM 130-nm RF-CMOS transformer. A MATLAB program has been developed to implement the modeling technique using semi-analytical extraction method which is convenient to calculate the particular
Bo Chen 0014, Liheng Lou, Supeng Liu, Kai Tang 0002, Yong Wang, Jianjun Gao 0006, Yuanjin Zheng   +6 more
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Semi-analytical models for precipitation

Atmospheric Research, 1996
The problem of precipitation from a point source is solved in closed form using Green's function methods, as is precipitation from an infinite line source. Examples are provided to illustrate methods for the combination of several sources to form a more complex or extended source.
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Semi-analytic models for photonic circuits

6th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service, 2003. TELSIKS 2003., 2004
In this paper we review a suite of highly accurate, yet extremely efficient, simulation techniques based upon semianalytical approaches that we have successfully developed. In these approaches, physically appropriate approximations are made that significantly simplify the analyses, without compromising accuracy.
T.M. Benson, A. Vukovic, P. Sewell
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Semi-analytic modeling of stacked metasurfaces

2022
Ziel dieser Arbeit war die Entwicklung eines semi-analytischen Models mehrschichtiger nano- strukturierter Oberflächen. Einzelne Schichten werden hierbei in Forschungsgemeinschaft als “Metasurface” bezeichnet. In Folge nennt man Schichtsysteme aus Metasurfaces “Metasurface Stacks” oder “Stacked Metasurfaces”.
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Semi-analytic AMR element model

Applied Thermal Engineering, 2018
Abstract The active magnetic regenerator (AMR) cycle has the potential to reduce energy consumption and mitigate environmental pollutants. While layering regenerators with spatially varying Curie (or transition) temperatures has been shown to significantly increase AMR performance, layering strategies have yet to be developed.
R. Teyber, P.V. Trevizoli, T.V. Christiaanse, P. Govindappa, I. Niknia, A. Rowe   +5 more
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AMR thermodynamics: Semi-analytic modeling

Cryogenics, 2014
Abstract Temperature span, cooling power, work, and efficiency are key performance metrics describing active magnetic regenerators used as refrigerators. Numerical methods to calculate these parameters efficiently and accurately are needed. This paper proposes a set of semi-analytic relationships to determine cooling power and magnetic work as a ...
Thomas Burdyny, Danny S. Arnold, Andrew Rowe   +2 more
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Semi-analytic model of the Moon's rotation

Celestial Mechanics, 1982
A comprehensive semi-analytic model of the Moon's rotation has been developed and libration tables have been compiled which are suitable for the analysis of lunar laser ranging measurements (Eckhardt, 1981). In the model, the Moon is considered to be rigid, elastic (using a potential disturbance Love number) or anelastic (using a complex Love number ...
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A Semi-analytical Model of Quasar Formation

Chinese Astronomy and Astrophysics, 2014
Abstract On the basis of Kang et al.’s semi-analytical model of galaxy formation and evolution, the joint formation and evolution of galaxies and their central massive black holes are studied. It is assumed that the activity of quasars is caused by merging of galaxies.
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Semi-Analytical Modeling of Coaxial Feeds

IEEE Transactions on Antennas and Propagation, 2012
A highly accurate semi-analytical model is given for the widely used practical topology of a coaxial feed exciting an arbitrary grounded planar structure. The probe connecting the inner conductor of the coaxial topology to the planar structure may cross an arbitrary number of layers.
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