In this paper, a two-phase hybrid particle swarm optimization (PSO) approach is used to solve optimal reactive power dispatch (ORPD) problem. In this hybrid approach, PSO is used to explore the optimal region and direct search is used as local optimization technique for finer convergence. The performance of the proposed hybrid approach is demonstrated with the IEEE 30-bus and IEEE 57-bus system...

In recent years there has been considerable interest in developing instructional techniques that enhance the visual perception skills of students taking engineering graphics courses. One of the techniques often mentioned is animation: the dynamic display of visual information. This paper examines computer-based dynamic display techniques that assist in the perception of three dimensional form. ...

A dynamic graph problem is a problem of maintaining a graph subject to edge insertions and/or deletions, and queries about some property of the graph. An incremental dynamic graph algorithm supports just edge insertions, a decremental dynamic graph algorithm supports just edge deletions, and a fully dynamic graph algorithm supports both edge insertions and deletions. In this paper, we survey so...

Peer-to-peer (P2P) technology has triggered a wide range of distributed applications including file-sharing, distributed XML databases, distributed computing, server-less web publishing and networked resource/service sharing. Despite of the diversity in application, these systems share common requirements for searching due to transitory nodes population and content volatility. In such dynamic e...

This paper makes two contributions at two different levels: one is about a design principle of HCI, namely the provision of personalized and dynamic feedback in interactive applications; the second contribution is a demonstration of the need for visual and dynamic representations to explain the design of interactive interfaces. At the first level, in the context of patients managing their healt...

By reviewing and improving previous empirical works on this topic, the present paper investigates the dynamic externalities of agglomeration in China. Taking China’s top three municipalities (i.e., Beijing, Shanghai, and Tianjin) as sample regions, it assesses empirically and compares how three types of dynamic externalities—namely MAR (Marshall–Arrow–Romer), Jacobs, and Porter externalities—af...

In two studies the effectiveness of dynamic and multiple static visualizations was investigated for a highly perceptual learning task, namely locomotion pattern classification. In Study 1a, seventy-five students viewed either dynamic, staticsequential, or static-simultaneous visualizations. For tasks with intermediate difficulty dynamic visualizations led to better recognition of the locomotion...

This paper makes two contributions at two different levels: one is about a design principle of HCI, namely the provision of personalized and dynamic feedback in interactive applications; the second contribution is a demonstration of the need for visual and dynamic representations to explain the design of interactive interfaces. At the first level, in the context of patients managing their healt...

In this paper we define a model, namely the recursive ECATNets (Recatnets) based on a sound combination of Extended Concurrent Algebraic Term nets and Recursive Petri nets, allowing a concise modeling of dynamic reconfiguration mechanisms of flexible workflow processes. The descriptive power of Recatnes is well-suited for collaborative workflows modeling. Moreover the use of model checking tech...