With the development of restructured power systems and increase of prices in some hours of day and increase fuel price, demand response programs were noticed more by customers. demand response consists of a series of activities that governments or utilities design to change the amount or time of electric energy consumption, to achieve better social welfare or some times for maximizing the benef...

In this paper, we propose, SCUBA, a Scalable Cluster Based Algorithm for evaluating a large set of continuous queries over spatiotemporal data streams. The key idea of SCUBA is to group moving objects and queries based on common spatio-temporal properties at runtime into moving clusters to optimize query execution and thus facilitate scalability. SCUBA exploits shared cluster-based execution by...

This paper presents a new scheme for power system stability enhancement using emergency control. The proposed scheme is based on a grid rulc-based fuzzy classification approach for power system security evaluation. Generator tripping is adoptcd as the emergency control technique followed by the necessary load shedding, if needed. The proposed strategy was tested through numerical simulation for...

Objectives: To find the coverage and factors associated with low immunization with respect to user and provider in urban and rural areas of Peshawar. Material and Methods: This cross-sectional study was conducted in selected areas of Peshawar from 9th to 19th of June 2010. 486 children, aged 4 years and below, were included in the study. Infants below 9 months were excluded. Parents were asked ...

Complex authentication schemes, such as some forms of biometric authentication and context analysis, require large quantities of sensor data and the identify verification can be computationally intensive. This can result in long latencies from the time of the authentication challenge until the authorization decision is determined. This can be worse when there is congestion in the system due to ...

Existing control techniques for DG systems are designed to operate a system either in the connected or disconnected (islanding) mode to the utility; thus not allowing for both modes to be implemented and transitioned between. Existing detection and re-closure algorithms can also be improved upon. Dependent upon the method implemented, detection algorithms can either cause distortions in the out...

1. A high viral load in nasopharyngeal aspirate (with or without a high viral load in serum) is a useful prognostic indicator of respiratory failure or mortality. The presence of viral RNA in multiple body sites is also indicative of poor prognosis. 2. Early treatment with an effective antiviral agent before day 10 may decrease the peak viral load, and thus ameliorate the clinical symptoms and ...

Recognising patterns that correlate multiple events over time becomes increasingly important in applications from urban transportation to surveillance monitoring. In many realworld scenarios, however, timestamps of events may be erroneously recorded and events may be dropped from a stream due to network failures or load shedding policies. In this work, we present SimpMatch, a novel simplex-base...

Traditionally, the protection of power transformers has been relegated to the application of transformer differential and backup overcurrent relays to provide shortcircuit protection. With the advent of modern multifunction transformer packages, differential and overcurrent protection are only two of many protective and logic functions that can be incorporated into the transformer protection pa...