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Well-organized big data get together in the densely distributed sensor networks is, therefore, a challenging research area. One of the most effective solutions to address this challenge is to utilize the sink node’s mobility to facilitate the data gathering. While this technique can reduce energy consumption of the sensor nodes, the use of mobile sink presents additional Challenges such as determining the sink node’s trajectory and cluster formation prior to data collection. In this paper, we propose a new mobile sink routing and data gathering method through network clustering based on modified ExpectationMaximization (EM) technique. In addition, we derive an optimal number of clusters to minimize the energy consumption. The effectiveness of our proposal is verified through numerical results.
Routing in Wireless Sensor Networks has to take into account the limited battery resources of the nodes. Sensor nodes can also be powered by other energy sources like solar energy. This paper provides a review of Environment monitoring using Wireless Sensor Networks. The issues related to environment sensor networks is highlighted. The real time applications in environment monitoring is presented with emphasis on energy conservation. Furthermore in this paper we address the problem of scavenging energy using solar powered devices.
Development is explain not as an empirical term (Reese and Overton1970) and on occasion as through it is (Kaplan 1983) . Many times as what ever happens across the life span is what constitutes development. The concept of development centers on value based notion of improvement. In life span perspective the development is life long, interactive, multidimensional, culturally historically embedded process, shows plasticity, involves both gain and losses and has multidisciplinary field of study. (Sugarman 2001) The quality of life is interpreted differently as satisfaction (Summers 1976), happiness( Esterling 1978),psychological wellbeing( Andrews and Withey 1978) and degree of fulfillment of individuals important goals(Frish 1089) .In Positive Psychology the scientifically unwieldy notion of happiness is broken down several more quantifiable aspect: positive emotion (the pleasant life) engagement (engaged life) and purpose(meaningful life). (Seligman 2008)
Mobile Ad hoc Network (MANETs) is an infrastructure – less network which is created by deploying the mobile nodes carrying wireless devices, able to route the data through multi hop fashion. MANETs uses distributed routing approach. In this paper, analysis of different classification of routing protocols such as: Reactive (AODV, DSR) Proactive (DSDV) and Hybrid protocols ZRP (Zone Routing Protocols) has been done using NS2 simulator. The above work analysis has been done on the following QoS parameters such as: Packet Delivery Ratio, Average Throughput, Routing Overhead and Average Delay
Talk about your electronics hardware needs and one can definitely appreciate what Norvell Electronics provides through its website. With fifty years under its belt, Norvell Electronics has delivered service and support for the various power needs of the private and public sectors. When it comes to power solutions, Norvell associates offers a wide selection of power supplies, thermal cooling products, filters, protection devices and magnetic, manufactured by many leading companies. More than that, Norvell associates can also offer products not commonly available at the counter as well as develop solutions suited to the unique requirements of special power systems.
Network coding has been recently applied to wireless networks to increase throughput. Back-pressure type algorithms based on the algorithmby Tassiulas and Ephremides have recently receivedmuch attention for jointly routing and scheduling over multi-hopwireless networks. we explore the performance of backpressure routing and scheduling for TCP flows over wireless networks. TCP and backpressure are not compatible due to a mismatch between the congestion control mechanism of TCP and the queue size based routing and scheduling of the backpressure framework. We decouple the routing and scheduling components of the algorithm by designing a probabilistic routing table that is used to route packets to per-destination queues. The scheduling decisions in the case of wireless networks are made using counters called shadow queues.
The study aimed to develop a Training Module in Switching Logic as instructional material in the teaching of students of Bachelor of Technology in subjects such as Industrial Design Process and Control, Industrial Electronics and Industrial Motor Control. This was conducted at the University of Rizal System-Morong Campus during the First Semester of SchoolYear 2007-2008. Professors and Instructors of the College of Industrial Technology and College of Engineering as well as the fourth year students of Bachelor of Technology major in Electrical technology served as the respondents –evaluators in the study. The researchers used an adopted and modified questionnaire-checklist to determine the level of acceptability of the module with respect to its objectives, Contents, Pretest and post-test contents, Illustrations/photos and Usefulness.
Talk about your electronics hardware needs and one can definitely appreciate what Norvell Electronics provides through its website. With fifty years under its belt, Norvell Electronics has delivered service and support for the various power needs of the private and public sectors. When it comes to power solutions, Norvell offers a wide selection of power supplies, thermal cooling products, filters, protection devices and magnetic, manufactured by many leading companies.
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