This paper tries to make some spatial extensions to W3C’s Scalable Vector Graphics (SVG) Specification to support SVG-based spatial information representation and analysis in the Web environment. Based on the theory of spatial data modeling, this paper attempts to find a theoretical foundation for SVG-based spatial information representation. And then, based on this theoretical foundation, we p...

This paper summarizes the bidding procedures proposed by NEPOOL for the Energy, Reserve, Automatic Generation Control (AGC), and Operable Capability markets. Experience with the Installed Capability market is also described. On October 29, 1997 FERC accepted NEPOOL’s previous filings proposing the implementation of the Installed Capability Market by November 1, 1997, but suspended its implement...

This paper aims to give a general review of existing literature on adaptive educational hypermedia systems and to reveal technological trends and approaches within these studies. Fifty-six studies conducted between 2002 and 2012 were examined, to identify prominent themes and approaches. According to the content analysis, the new technological trends and approaches were grouped into seven categ...

This paper addresses the stability of the switched systems with discrete and distributed time delays. By applying Lyapunov functional and function method, we show that, if the norm of system matrices Bi is small enough, the asymptotic stability is always achieved. Finally, a example is provided to verify technically feasibility and operability of the developed results. Keywords—Switched system,...

We present an operable definition of focus which is argued to be of a cognito-pragmatic nature and explore how it is determined in discourse in a formalized manner. For this purpose, a file card model of discourse model and knowledge store is introduced enabling the decomposition and formal representation of its determination process as a programmable algorithm (FDA). Interdisciplinary evidence...

A case of villous adenoma of the common hepatic duct causing obstructive jaundice, where the diagnosis was made by ultrasound guided percutaneous biopsy is reported. At surgery ultrasonography was used to define the extent and operability of the tumour.

Knowledge discovery in large multimedia databases which usually contain large amounts of noise and high-dimensional feature vectors is an increasingly important research issue. Density-based clustering is proved to be much more efficient when dealing with such databases. However, its clustering quality mainly depends on the parameter setting. For the adequate choice of the parameters to be pres...