Explode-decay dromions in the non-isospectral Davey-Stewartson I (DSI) equation

In this letter, we report the existence of a novel type of explode-decay dromions, which are exponentially localized coherent structures whose amplitude varies with time, through Hirota method for a nonisospectral Davey-Stewartson equation I discussed recently by Jiang. Using suitable transformations, we also point out such solutions also exist for the isospectral Davey-Stewartson I equation itself for a careful choice of the potentials

India as a Foreign Policy Actor – Normative Redux. CEPS Working Document No. 285, February 2008

This paper analyses India’s behaviour as a foreign policy actor by looking at India’s changing relations over the past decade with the EU, US, China, Japan, Myanmar, Pakistan, Nepal and, in a historical departure, the former princely state of Sikkim. It argues that though India has almost always been a normative actor, Indian foreign policy is today transiting from abstract, and frequently ‘unrealpolitik,’ views of what constitutes normative behaviour. India’s ‘Look East’ policy has been the cornerstone of this transition, indicating that economic growth, maritime capability and peace and stability in its neighbourhood are key goals of India’s present behaviour as a normative foreign policy actor

Processing Posting Lists Using OpenCL

One of the main requirements of internet search engines is the ability to retrieve relevant results with faster response times. Yioop is an open source search engine designed and developed in PHP by Dr. Chris Pollett. The goal of this project is to explore the possibilities of enhancing the performance of Yioop by substituting resource-intensive existing PHP functions with C based native PHP extensions and the parallel data processing technology OpenCL. OpenCL leverages the Graphical Processing Unit (GPU) of a computer system for performance improvements. Some of the critical functions in search engines are resource-intensive in terms of processing power, memory, and I/O usage. The processing times vary based on the complexity and magnitude of data involved. This project involves different phases such as identifying critical resource intensive functions, initially replacing such methods with PHP Extensions, and eventually experimenting with OpenCL code. We also ran performance tests to measure the reduction in processing times. From our results, we concluded that PHP Extensions and OpenCL processing resulted in performance improvements