A hard challenge facing developers of online communities is attaining a critical mass of members and subsequently sustaining their participation. We propose a new mechanism for motivating participation in interest-based online communities, which engages non-contributing members (lurkers) by modeling and visualizing the asymmetrical relations formed when reading, evaluating, or commenting other ...

Television and the Internet have proven to be a popular combination for both broadcasters and viewers. Because of this popularity they are increasingly facing the consequences of central bottlenecks, which could be overcome by taking a different approach: Peer-to-Peer (P2P) technology. P2P systems can only be successful with as much cooperation among as many users as possible. We explain how th...

WSN has been directed from military applications to various civil applications. However, many applications are not ready for real world deployment. Most challenging issues are still unresolved. The main challenge facing the operation of WSN is saving energy to prolong the network lifetime. Clustering is an efficient technique used for managing energy consumption. However, clustering is an NP ha...

hard magnetic srfe12o19 (srm) nanoparticles were synthesized by a facile sonochemical reaction. the magnetic nanoparticles were then added to acrylonitrile-butadiene-styrene, polystyrene, polycarbonate, and poly sulfone to make magnetic nanocomposites. the magnetic properties of the samples were also investigated using an alternating gradient force magnetometer. the strontium ferrite nanopartic...

The aim of this case report is to present a technique for removing the denture which locked to ball-attachment because of excessive hard relining resin material flows around the ball-attachment. An alternative method was used in the present case. A cylindrical resin was removed with a diamond bur at the level of matrix and by this way the matrix was removed safely. The advantage of the presente...

The thermal stability of 200 nm thick plasma enhanced chemical vapor deposited a-C:H and a-C:D layers ranging from soft to hard layers has been studied and compared to that of deposits collected on the Tore Supra tokamak plasma facing components by means of insitu Raman spectroscopy. Linear ramp heating and long term isotherms (from several minutes to 21 days) have been performed and correlatio...

Abstract I chose my current career path because enjoy the freedom to pursue research ideas that excite me, and love teaching … The biggest challenge facing generation of scientists is impact Brexit, now makes it very hard for British move work in rest Europe return UK with their EU or Non-EU spouses …“ Find out more about Jon Ashley his Introducing Profile.

Music industry is “facing the music” now. Big stakeholders try very hard to maintain their positions while other players see opportunities in the advent of peer-to-peer networks. Music, as a kind of representative information good, deserves its economic properties to be examined and made explicit. Using the familiar Hotelling (1929) model of product differentiation, I show that the current musi...

Mobile computing devices like mobile, laptops& tablets that covered large market of end user facing battery issues is an open challenge for research scholars. In this project work I have attempt to optimize power [batteries relate issues] at decoding. Stare of most efficient error control LDPC code which is being used. In this work bit flipping decoder hard decision decoding is used which can b...