We present our updated results of the nucleon-nucleon potential in quenched lattice QCD simulations with the plaquette gauge action and the Wilson quark action on the 324(≃ (4.4fm)4) lattice. From the equal-time Bethe-Salpeter (BS) wave function, the NN potential is constructed through the Schrödinger-type equation. Resulting NN potential has all the qualitative features which phenomenological ...

The complete calculation of the lowest order short-distance contributions to the Bs → γγ decay in the SM are presented. The amplitude and branching ratio are calculated. 1 Permanent address: High Energy Physics Institute, Tbilisi State University, University St.9, Tbilisi 380086, Rep. of Georgia. E-mail:[email protected]

Wireless Sensor Network (WSN) consists of several Nodes (SN) for monitoring various applications and sensing the environmental data. The WSN gathers compiles detected data before sending it to Base Station (BS). nodes have limited battery power, so efficient transmission techniques collection methods are required enhance sensor network lifetime. In this paper, Particle Swarm Optimization (PSO) ...

Owing to the rise in mobile users accessing high-quality video content, content delivery networks are under increased load. Therefore, a distributed cooperative caching technique, which each device functions as cache server and shares through device-to-device communication has been proposed alleviate network However, efficient placement on devices is challenging, because capacity of limited did...

In this work, we investigate the joint optimization of base station (BS) location, its density, and transmit power allocation to minimize the overall network operational cost required to meet an underlying coverage constraint at each user equipment (UE), which is randomly deployed following the binomial point process (BPP). As this joint optimization problem is nonconvex and combinatorial in na...

This paper critically analyses the foundations of three widely advocated information security management standards (BS7799, GASPP and SSE-CMM). The analysis reveals several fundamental problems related to these standards, casting serious doubts on their validity. The implications for research and practice, in improving information security management standards, are considered.