Papers by pushpendra singh
International Journal of Electrical Power & Energy Systems, 2012
This paper presents an algorithm for anticipatory control of load bus voltages. The algorithm opt... more This paper presents an algorithm for anticipatory control of load bus voltages. The algorithm optimizes a set of reactive power control variables and maximizes reactive reserve available at generating buses. Voltage dependent reactive power limits have been accounted. The optimal settings of reactive power control variables have been obtained for next interval predicted loading condition. These optimized settings satisfy the operating inequality constraints in predicted load condition as well as in present base case loading conditions. A population based differential evolution strategy has been used for optimization. Results obtained have been compared with those obtained using another population based technique known as PSO.
Proceedings of the 4th ACM Workshop on Networked Systems for Developing Regions - NSDR '10, 2010
Mobile phones have emerged as truly pervasive and affordable Information and Communication Techno... more Mobile phones have emerged as truly pervasive and affordable Information and Communication Technology (ICT) platform in the last decade. Large penetration of cellular networks and availability of advanced hardware platforms have inspired multiple innovative research opportunities in mobile computing domain. However, most of the research challenges have focused on typical scenarios existing in the developed economies. Using the healthcare as an application for mobile computing, we present research challenges and novelties in mobile computing domain that take account for differences between developing such as India and developed economies based on commonly available mobile platforms, communication cost, differences in user behavior and acceptable societal norms, among others. With localization being a critical component of various mobile systems, we present early results for the application of GPS-less localization that highlight the corresponding differences in Indian context.
A usability study of adaptive interfaces for interactive voice response system
Proceedings of the 3rd ACM Symposium on Computing for Development - ACM DEV '13, 2013
ABSTRACT Interactive voice response (IVR) systems in developing nations are mostly key-press base... more ABSTRACT Interactive voice response (IVR) systems in developing nations are mostly key-press based IVR because of difficulties with speech recognition in under-supported languages and accents. Navigation problems in such IVR systems results in time consuming interaction. In this work, we propose and evaluate two approaches of adaptive user interface to enable faster access to information in key-press based IVR systems.
Under voltage load shedding using evolution strategy to enhance voltage stability
2011 International Conference on Energy, Automation and Signal, 2011
This paper proposes a methodology for curtailment of optimal load accounting operating and stabil... more This paper proposes a methodology for curtailment of optimal load accounting operating and stability inequality constraints at selected buses using differential evolution (DE). In this paper Schur's inequality of load flow Jacobian is a proximity indicator and load buses for load shedding have been selected based on the sensitivity of proximity indicator with respect to load shed. The algorithm accounts
CVDMagic
Proceedings of the Fifth International Conference on Information and Communication Technologies and Development - ICTD '12, 2012
Cardio-Vascular Diseases (CVD) are one of the major healthcare problems across the world, causing... more Cardio-Vascular Diseases (CVD) are one of the major healthcare problems across the world, causing deaths for nearly 17 million people every year. With more than 80% of all CVD cases occurring in developing countries, it is a big challenge that needs immediate attention. Specifically for India, World Health Organization (WHO) and many other organizations have predicted rapid growth of CVD
Effect of parameters on redistribution and removal of particles from drop surfaces
Soft Matter, 2010
It was recently shown by us that particles distributed on the surface of a drop can be concentrat... more It was recently shown by us that particles distributed on the surface of a drop can be concentrated at the poles or the equator of the drop by subjecting the latter to a uniform electric field and that such concentrated particles can then be removed from the drop by increasing the electric ...
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Papers by pushpendra singh