This paper presents our e orts to accurately track a Head Mounted Display HMD in a large environment We review our current benchtop prototype introduced in WCF then describe our plans for building the full scale system Both systems use an inside out optical tracking scheme where lateral e ect photodiodes mounted on the user s helmet view ashing infrared beacons placed in the environment Church ...

A 2D analytical method for magnetic vector potential calculation in inner rotor surface mounted and surface inset permanent magnet machines considering slotting effects, magnetization orientation and winding layout has been proposed in this paper. The analytical method is based on the resolution of Laplace and Poisson equations as well as Maxwell equation in quasi- Cartesian coordinate by using...

Generating transgenic mice using fertilized egg cells Purified experimental DNA is directly injected into the male pronucleus of a fertilized mouse egg using a microscope-mounted manipulator and microneedle. The three essential instruments for embryo injection are an inverted microscope with stage magnification of 400X, a micromanipulator-mounted negative pressure holding pipette (left) and a m...

People who suffer from acrophobia fear any situation that involves heights. Several Virtual Reality systems have been presented to treat this problem. This paper presents a comparison study of the levels of presence and anxiety in an acrophobic environment that is viewed using a Computer Automatic Virtual Environment (CAVE) and a Head-Mounted Display (HMD). In this environment, the floor fell a...