In this paper, a two-tiered Wireless Sensor Network (WSN) where nodes are divided into clusters and nodes forward data to base stations through cluster heads is considered. To maximize the network lifetime, two energy efficient approaches are investigated. We first propose an approach that optimally locates the base stations within the network so that the distance between each cluster head and ...

Now, days the consumption of electricity has become a basic need in human life. The major issue faced is increased past few years. traditional system unable to track electric meters.in man power needs be employed note down meter readings. Monitoring and keeping record becomes tedious task. To overcome this problem automatic energy introduced. uses internet things which saves time. automatically...

INTRODUCTION Mobile phones hold considerable promise for delivering evidence-based smoking cessation interventions that require frequent and objective assessment of smoking status via breath carbon monoxide (Breath CO) measurement. However, there are currently no commercially available mobile-phone-based Breath CO meters. We developed a mobile-phone-based Breath CO meter prototype that attaches...

Terminal restriction fragment length polymorphism (T-RFLP) is a culture-independent method of obtaining a genetic fingerprint of the composition of a microbial community. Comparisons of the utility of different methods of (i) including peaks, (ii) computing the difference (or distance) between profiles, and (iii) performing statistical analysis were made by using replicated profiles of eubacter...

Location awareness is a basic need for future wireless systems. In this paper we use the time measurement principle DTDOA and discuss a solution of time measurement based on an add-on correlator module in an IEEE 802.11a receiver. Furthermore, we investigate the performance of an indoor localization system for a Gbit/s, 60 GHz high-performance wireless LAN, currently under development. Simulati...