This paper describes a novel method of real-time virtual view generation for augmented virtuality system. The aim is to rectify the displacement between virtual eye position and video cameras which are attached on the head mounted display. It consists of three steps: Firstly, stereo calibration was used to generate cameras' internal and external parameters, and then image planes were rectified ...

We study the electronic lifetimes in molecular junctions using the Keldysh nonequilibrium Green function (NEGF) model. It is found that two characteristic time scales which govern the electron tunneling phenomena. One is the electronic lifetime in which electronic energy in the molecular electronic state dissipates into the right/left electrode or vibrational mode, the other is the residence ti...

A low energy ion beam system for space charge compensation (SCC) experiments was developed and evaluated. This system was designed for observation of SCC of a positive ion beam with an electron beam. The system consisted of the ion source chamber and the SCC experiment chamber. The ion source chamber was equipped with the compact microwave ion source for low voltage extraction. Ion current at i...

Cyber threats become more and more pervasive on the Internet and on distributed/decentralized systems. In order to secure communication over these infrastructures and respond to mobility constraint, a new class of Virtual Private Networks (VPN), which support both security and mobility, has emerged in the course of last years. Mobile Virtual Private Networks, called mobile VPN, provide not only...

This paper proposes a general framework to enhance grasping interactions of an operator wearing a digital glove. We focus on a consistent interpretation of the posture information acquired with the glove in order to reflect the grasp of virtual artifacts. This allows manipulations requiring a higher skill in virtual environment and also improve interactions with virtual human models. A handshak...

introduction electron linear accelerator (linac) can be used for neutron production in boron neutron capture therapy (bnct). bnct is an external radiotherapeutic method for the treatment of some cancers. in this study, varian 2300 c/d linac was simulated as an electron accelerator-based photoneutron source to provide a suitable neutron flux for bnct. materials and methods photoneutron sources w...

We present a discussion of design issues involving whole hand input in virtual environments. In many cases, whole hand input devices limit the types of interaction that the user can perform in the virtual world due to the nature of the device. One possible approach to alleviate these limitations is to provide hybrid input devices which enable the user to combine information generated from two d...