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Multimedia content delivery to capable smart phones with
high-speed next-generation Internet connectivity is becoming commonplace.
However, the openness of delivery demands adaptive and robust management of
intellectual property rights. The purpose of this article is to describe a
framework to address the central issues in content delivery: a scalable
peer-to-peer-based content delivery model. Our method pairs the delivery with a
secure access control model that enables data providers to secure a return from
making their original content available. Our work resulted in a prototype
implementation written in Java that includes a client for the Android mobile
platform. Adding robust trust management to scalable peer-to-peer content
delivery is the major significance of our work.
The virial theorem is written by using the canonical equations of motion in classical mechanics. A moving particle with an initial speed in an n-particle system is considered. The distance of the moving particle from the origin of the system to the final position is derived as a function of the kinetic energy of the particle. It is thought that the considered particle would not collide with other particles in the system. The relation between the final and initial distance of the particle from the origin of the system is given by a single equation.
The scattering of electron by a photon is a well-known reaction in physics. In this study, the change in the electron’s energy after the scattering is taken into account. The previous works are searched. In order to take into account this change in the electron’s energy in the equation of motion of the electron, the Dirac equation is used with the virial theorem. The scattered electron kinetic energy which is given to the electron by the loss in photon’s energy is related to the potential energy of the electron by the virial theorem which states that the potential energy is two times of the kinetic energy in minus sign. A first time application of the virial theorem on a scattered electron by a photon is included to the Dirac equation.