Results 161 to 170 of about 695,487 (206)

A L-band semi-empirical ocean backscattering model

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
A semi-empirical model is proposed by merging an improved directional spectrum into the advanced integral equation method (AIEM) in this paper. By establishing a new angular spreading function (ASF), this improved directional spectrum provides a better description of wave directionality, especially over wavenumber range from short-gravity waves to ...
Yanlei Du, Xiaofeng Yang 0002, Kun-Shan Chen, Ziwei Li   +3 more
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A semi-empirical model for maximal LINPACK performance predictions

Sixth IEEE International Symposium on Cluster Computing and the Grid (CCGRID'06), 2006
In general, the maximal LINPACK performance of a large cluster depends on the number of processors, the total memory capacities, the problem size, the block size, the middle-ware of message passing, and the BLAS (basic linear algebra subprograms) library. One must handle these multi-variables factors to predict the performance score.
Chau-Yi Chou, Hsi-Ya Chang, Shuen-Tai Wang, Chang-Hsing Wu   +3 more
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Semi-Empirical Model of Strong Evaporation

2017
Knowledge of laws of strong evaporation is instrumental for the solution of a number of applied problems: the effect of laser radiation on materials (Gusarov and Smurov in Phys. Fluids 14:4242–4255, [1]), calculation of the parameters of discharge into vacuum of a flashing coolant (Larina et al. in Fluid Dyn. 31:127–133, [2]), etc.
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A New Semi-empirical Model for the Analysis of Surface Roughness Heterogeneity

2006 IEEE International Symposium on Geoscience and Remote Sensing, 2006
The use of a theoretical backscatter model to analyse medium to low spatial resolution microwave data is still very complicated, particularly because of the difficulty in defining a unique roughness parameter, capable of adequately representing heterogeneous terrain.
Zribi, Mehrez, Baghdadi, Nicolas, Guérin, C.   +2 more
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Semi-empirical scattering correction model for MSCT

SPIE Proceedings, 2007
Scattering in CT is a major process that may result in severe image artifacts. In order to suppress this scattering, most CT scanners are equipped with post collimation anti-scatter grid along the fan beam direction. In the longitudinal direction (z-direction) no hardware solution has been implemented since the scattering is negligible in narrow ...
O. Amir, I. Sabo-Napadensky
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Semi-empirical model for intense evaporation

Thermophysics and Aeromechanics, 2017
A semi-empirical model based on the linear kinetic theory was developed for intense evaporation. The extrapolated drops for pressure and temperature at the condensed phase surface were calculated through summing of linear and squared terms. The analytical dependencies were obtained for gas parameters in gas-dynamic zone as functions of Mach number ...
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Semi-Empirical Process Modeling: Model and Database Integration

CAE and Intelligent Processing of Polymeric Materials, 1997
Abstract Process modeling has been successfully used in the plastics injection molding industry over the past decade. However, mathematical descriptions in certain areas of plastics processing are either not very well understood or are too complicated to be formulated.
H. P. Wang, Erin M. Perry, Martin K. Lee
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A simple semi-empirical model for the magnetospheric substorm

Planetary and Space Science, 1981
Abstract A first order description of the behaviour of the electric and magnetic fields in the magnetotail during substorms is obtained taking into account the known experimental information. For the growth phase the spatial distribution of the electric field and the temporal evolution of the neutral sheet current density are studied.
V.S. Semenov, V.A. Sergeev
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The semi-empirical thermosphere model DTM2013

2014
Atmospheric density models are used in satellite orbit determination and prediction programs to compute the atmospheric drag force, as well as in upper atmosphere studies. They represent temperature and (partial) density as a function of altitude, latitude, local solar time, day-of-year, and parameters related to the state of atmospheric heating due to
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A semi-empirical convection model for northward IMF

Journal of Atmospheric and Terrestrial Physics, 1986
Abstract Observations of convective electric fields and Birkeland currents during northward IMF are unified in a semi-empirical quantitative model, in which the total potential is regarded as the summation of three parts: φ v , viscous convection with two crescent cells around the polar cap boundary; φ n , positive B z convection with ...
Min-Yun Zi, Chang-Shou Shen
openaire   +1 more source