نتایج جستجو برای: calibrated equations
تعداد نتایج: 260683 فیلتر نتایج به سال:
In this article, an improved reduced order modelling approach, based on the proper orthogonal decomposition (POD) method, is presented. After projecting the governing equations of flow dynamics along the POD modes, a dynamical system was obtained. Normally, the classical reduced order models do not predict accurate time variations of flow variables due to some reasons. The response of the dynam...
Calibration is a conventional method which is utilized to adapt traffic models based on local situations in order to achieve best results. One of the issues regarding the efficiency of this method is whether traffic models should be calibrated only in one or two major cities of a country or calibrated based upon a comprehensive selection of cities. Therefore, this study, which has used the actu...
This chapter is a simple, rigorous, practically-oriented exposition of computable general equilibrium (CGE) modeling. The general algebraic framework of a CGE model is developed from microeconomic fundamentals, and employed to illustrate (i) how a model may be calibrated using the economic data in a social accounting matrix, (ii) how the resulting system of numerical equations may be solved for...
We present a multiscale model for numerical simulation of dynamics of crystalline solids. The method couples nonlinear elastodynamics as the continuum description and molecular dynamics as another component at the atomic scale. The governing equations on the macroscale are solved by the discontinuous Galerkin method, which is built up with an appropriate local curl-free space to produce a coher...
relating the coordinates of the vertex A and its projection a with the direction cosines: In this paper we model the camera-polygon system with parametric equations to locate a polygonal object in space. cosa. = J This leads to a nonlinear optimization method under true X +YO +fa perspective for monocular vision with a single image. The algorithm finds directly the 3D location in the camera coc...
In teleoperation, automatic identification of remote environment properties such as object weight, size, and friction can assist the teleoperator in determining optimal manipulation strategies. Similarly, virtual training systems can be calibrated using such an automatic identification procedure. For those properties which can be described by parameterized constraint equations, this paper provi...
The error in irradiance measured with Sun-calibrated multichannel radiometers may be large when the solar zenith angle (SZA) increases. This could be particularly detrimental in radiometers installed at mid and high latitudes, where SZAs at noon are larger than 50 degrees during part of the year. When a multiregressive methodology, including the total ozone column and SZA, was applied in the ca...
This paper presents a panoramic stereo imaging system which uses a single camera coaxially combined with a fisheye lens and a convex mirror. It provides the design methodology, trade analysis, and experimental results using commercially available components. The trade study shows the design equations and the various tradeoffs that must be made during design. The system's novelty is that it prov...
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