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Semi-empirical modeling of apertures by use of FDTD
1999 IEEE International Symposium on Electromagnetic Compatability. Symposium Record (Cat. No.99CH36261), 2003A novel method to include models of complex apertures into the finite-difference time-domain method is presented. Instead of resolving the geometrical details of the aperture, the aperture is treated as a magnetic dipole. The properties of the magnetic dipole moment are determined using the measured transmission cross section of the aperture. This semi-
T. Martin, M. Backstrom
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Evolution of Semi-empirical Approach: Modeling and Inversion
2021Semi-empirical models for radar scattering from vegetation are discussed in this chapter. The evolution of semi-empirical approaches from the dielectric slab model to the Water Cloud Model (WCM) and its modified forms are presented with their theoretical development.
Dipankar Mandal +2 more
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Semi-Empirical Model for the Thermally tunable LPFG
2007 Conference on Lasers and Electro-Optics - Pacific Rim, 2007We propose a semi-empirical model for the analysis of a temperature-tuned long-period fiber gratings (LPFG) filter. Applying the multi-port lattice model to LPFGs, meanwhile utilizing the empirically determined temperature-dependence of core-to-clad mode-coupling coefficients, we achieve a precise, practical means of the transmission spectrum analysis ...
Junkye Bae +5 more
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Semi-empirical groundwork of the bond-valence model
Acta Crystallographica Section B Structural Science, 1995The bond-valence model (BVM) which relates the length R of a bond to its bond valence s is a widely used empirical approach to the interpretation and prediction of atomic arrangements in crystals. However, a theoretical foundation of the BVM appears to be fairly inadequate so far.
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Semi-empirical model of the rill erosion of soils
Eurasian Soil Science, 2007Semi-empirical equations for describing the erosive and transporting capacities of low-depth flows with account for their interaction with eroded soil were developed and experimentally and theoretically substantiated. These equations can form the basis for a unified model of rill erosion under irrigation, rainfall, and snowmelt runoff conditions.
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A Semi-Empirical Model for Dynamic Stall
Journal of the American Helicopter Society, 1989J. G. Leishman, T. S. Beddoes
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Semi-empirical Modelling of Hydrogen Sorption Isotherms
2021Solid-state hydrogen storage is the key to environmentally-friendly fuel economy. Several reports have demonstrated adsorption within micropores can densify hydrogen past the solid phase [1] moving the field closer to practical hydrogen storage. However, determination of adsorbate hydrogen density is difficult, expensive and time-consuming.
Brewster, Charlie D +4 more
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Semi-empirical modeling of CO2 and particles in moving buses
Urban Climate, 2023Yu Zhao, Chenmin Gu, Xiaocheng Song
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Semi-Empirical Modelling of SLD Physics
42nd AIAA Aerospace Sciences Meeting and Exhibit, 2004William Wright, Mark Potapczuk
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