mobile robot navigation is one of the basic problems in robotics. in this paper, a new approachis proposed for autonomous mobile robot navigation in an unknown environment. the proposedapproach is based on learning virtual parallel paths that propel the mobile robot toward the trackusing a multi-layer, feed-forward neural network. for training, a human operator navigates themobile robot in some...

There is abundant literature regarding virtual reality as a technology of interest in the present age. However, there are few comprehensive studies on strategies that can improve the level of urban design research using this technique. To investigate the issue, this paper first reviews the concept of virtual reality. Next, the opinions of experts in the field of virtual reality technology are s...

Background: Virtual education refers to a variety of teaching-learning methods that are implemented and supported electronically. The present study was conducted to determine the effects of group blogging on the attitude of nursing students towards virtual education.    Methods: This was a quasi-experimental pretest-posttest study in which all fifth-semester nursing students (n=25) w...

There has been a recent development and explosion of interest among academicians across a wide range of disciplines in the use of virtual Class room. Utilization of the virtual class room as a laboratory experimentation for teaching and learning has increased significantly in recent years as development tools for web based applications have become easier to use and computers have become more ca...

Networked Collaborative Virtual Environments (NCVE) systems allow multiple geographically distant users to share the same 3D Virtual Environment using a network. The paper presents an overview of the developments in the field of NCVE in the past decade with an introduction of research challenges and solutions for such systems and a brief presentation of systems that brought major developments t...

With the growing demand for collaboration technologies, several CSCW (Compute-Supported Cooperative Work) systems have been developed. CVEs (Collaborative Virtual Environments) represent an important category of CSCW systems that generally make use of 3D shared space to provide collaboration facilities. However in most CVEs collaboration is restricted to the Virtual Reality context. In this pap...