SRI International participated in the MUC-6 evaluation using the latest version of SRI's FASTUS system [1] . The FASTUS system was originally developed for participation in the MUC-4 evaluatio n [3] in 1992, and the performance of FASTUS in MUC-4 helped demonstrate the viability of finit e state technologies in constrained natural-language understanding tasks . The system has undergon e signifi...

Electromagnetic penetration through an aperture in an infinite, planar screen separating two half spaces of different electromagnetic properties, " American Geophysical Union, pp. 349-357, 1976. (also in the book Moment Methods in Antennas and Scattering. [7] D. T. Auckland and R. F. Hanington, " Electromagnetic transmission through a filled slit in a conducting plane of finite thickness, TE ca...

)). ( ( )] [( ξ β ξ u g u x x = = (4) Problems of this type arise when we consider a diffusion equation with nonlinear localized chemical reactions. As a result of the reactions the derivatives are discontinuous across the interfaces (local sites of reactions). Some 2D problems with jump conditions, that depend on the solution on the interface are considered by J. Kandilarov and L. Vulkov [2,3,...

Finnish has a very productive compounding and a rich inflectional system, which causes ambiguity in the morphological segmentation of compounds made with finite state transducer methods. In order to disambiguate the compound segmentations, we compare three different strategies, which are all cast in the same probabilistic framework and compared for the first time. We present a method for implem...

coupled -shear walls are one of lateral load resisting systems in high and medium rise reinforced concrete buildings. the lateral structural response is exactly dependents on the shear walls behavior; therefore these elements must response well whenundergodifferent load conditions. the structures located in near-source region behave differently compared to those in near-source sites when subjec...

Chemical Vapor Deposition (CVD) is one of the most popular methods for producing Carbon Nanotubes (CNTs). The growth rate of CNTs based on CVD technique is investigated by using a numerical model based on finite volume method. Inlet gas mixture, including xylene as carbon source and mixture of argon and hydrogen as carrier gas enters into a horizontal CVD reactor at atmospheric pressure. In thi...

Received: 12 November 2002 / Accepted: 22 May 2003 / Published: 31 December 2003 __________________________________________________________________________________ Abstract: Based on a model of a two-heat-reservoir heat engine with a finite high-temperature source and bypass heat leak, the optimal configuration of the cycle is found for the fixed cycle period with another linear heat transfer l...

In this paper, a stochastic term is added to the classical generalized nonlinear Schrödinger Equation to describe the noise generated when light pulses propagate in a fiber. It has been shown that the generated supercontinuum light source fluctuates up to 50% of its output temporal intensity profile due to noises of different sources. The simulation method devised has been applied to the propag...

One of the important objectives in teaching finite element method at introductory level is to bring students into the comprehension of finite element procedures. This study presents a strategy of teaching structural line elements involving an open source computer-aided learning tool FreeMat integrated with another open source CALFEM finite element toolbox. FreeMat, which is a programming based ...