Background: According to the situation of education in Iran it is clear that over the years, there has been no successful attempt to identify related challenges and problems to development and implementation of virtual training. In this regard, the effect of this type of training influenced by the role of hidden curriculum of education in the country.   Based on this, current study has investig...

Embedded GPS receivers have become commonplace with the proliferation of GPS navigation systems into all but the least expensive vehicle and cell phone lines. As more manufacturers embed low-cost GPS receivers into their products, the need for low-cost GPS signal simulators has also grown. Controlled virtual testing is vital in ensuring the expected system performance. NAVSYS developed a low co...

Computer Engineering Group Assistant Professor ChingShun Lin Ph.D., Electrical Engineering, University of Southern California, U.S.A. Fields of study: Immersive System, Multimedia Application, Spatial Audio Rendering, Multichannel Audio Signal Processing, Virtual Technology, Transformation between Image and Graphics, and Soft Computing.

In this paper, we use a novel virtual branch technique to succinctly derive the mean and variance of the combiner output signal-to-noise ratio for hybrid selection/maximal-ratio combining in a multipath-fading environment.

Sound is essential to enhance any visual experience and is becoming an important issue in virtual reality systems, computer animation and interactive computer graphics applications such as video games. Real-time rendering of sound from a source positioned arbitrarily in space around the listener, often referred to as “3Dsound”, has seen dynamic development in the recent years. Many approaches h...

This work addresses the problem of distributed formation tracking for a group follower holonomic mobile robots around reference signal. The signal is comprised geometric center positions multiple leaders. work’s main contribution novel Modulated Distributed Virtual Observer (MDVO) Moreover, proposed MDVO based on an exact dynamic consensus algorithm with prescribed convergence time. In a...

background: the i-space is a radiological imaging system in which computed tomography (ct)-scans can be evaluated as a three dimensional hologram. the aim of this study is to analyze the value of virtual reality (i-space) in diagnosing acute occult scaphoid fractures.   methods: a convenient cohort of 24 patients with a ct-scan from prior studies, without a scaphoid fracture on radiograph, yet ...

the purpose of this study was to evaluate the rate of using standards of designing electronic courses in educational contents of state-virtual universities in iran. the method of the study was a descriptive-survey one. the statistical population was the educational content of electronic courses in state-virtual universities such as university of science and technology, and shiraz university. da...

Virtual environments involve the user in an interactive three-dimensional computer generated environment. The methods of interaction typically involve direct manipulation of virtual objects via three-dimensional trackers. The tracking signal may be degraded in various ways, impacting the ability of the user to perform various tasks. This presentation will address the impact of two types of degr...