The paper proposes a novel multi-area state estimator based on wide area measurements where only boundary buses are considered in the coordination level. The power injection measurements are not used during the coordination level reducing the number of states and therefore size of the problem. Instead, a set of pseudo-measurements are included whenever a power injection measurement is available...

Some image quality measures are proposed in this paper. The most desired feature of these method is high correlation with diagnostic accuracy of compressed medical images. The chi-square measure (global and local) as a measure of statistical similarity of original and compressed image data, REOBD as a measure of blocking effect and diagnostic quality coefficient give vector measure of diagnosti...

OMR (Optical Music Recognition) programs have been available for years, but they still leave much to be desired in terms of accuracy. We studied the feasibility of achieving substantially better accuracy by using the output of several programs to “triangulate” and get better results than any of the individual programs; this multiplerecognizer approach has had some success with other media but, ...

Model predictive contouring control is a new control scheme based on minimisation of a cost function which reflects the trade-off between the competing objectives of accuracy and traversal time. In this paper, model predictive contouring control is implemented in real time on an X-Y table. The controller automatically adjusts the feed rate to maintain accuracy along the desired path. By varying...

In the presence of the direction of arrival (DOA) mismatch, the performance of generalized sidelobe canceller (GSC) may suffer severe degradation due to the gain loss of the desired signal in the main array and cancellation. In this paper, one effective GSC algorithm is proposed to improve the robustness against the DOA mismatch of the desired signal. Firstly, two subspaces, which contain the d...

A recipe is given for creating material with a desired refraction coefficient by embedding many small particles in a given material. To implement this recipe practically, some technological problems have to be solved. These problems are formulated. PACS 43.20.+g, 62.40.+d, 78.20.-e. MSC 35J10, 74J25, 81U40

A method is given for creating material with a desired refraction coefficient. The method consists of embedding into a material with known refraction coefficient many small particles of size a. The number of particles per unit volume around any point is prescribed, the distance between neighboring particles is O(a 2−κ 3 ) as a → 0, 0 < κ < 1 is a fixed parameter. The total number of the embedde...

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With the rapid development of e-commerce over Internet, web services have attracted much attention in recent years. Nowadays, enterprises are able to outsource their internal business processes as services and make them accessible via the Web. Then they can dynamically combine individual services to provide new value-added services. A main problem that remains is how to discover desired web ser...