Clouds can be used to provide on-demand capacity as a utility. Although the realization of this idea can differ among various cloud providers (from Google App Engine to Amazon EC2), the most flexible approach is the provisioning of virtualized resources as a service. These virtualization-based clouds, like Amazon EC2 or the Science Clouds (which uses the Globus Virtual Workspace Service [4]), p...

Immersive virtual environments (VEs) provide participants with computer-generated environments filled with virtual objects to assist in learning, training, and practicing dangerous and/or expensive tasks. But for certain tasks, does having every object being virtual inhibit the interactivity? Further, does the virtual object’s visual fidelity affect performance? Overall VE effectiveness may be ...

The dramatic linear increase in ergodic capacity with the number of antennas promised by MIMO wireless communication systems is based on idealized channel models representing a rich scattering environment. Is such scaling sustainable in realistic scattering scenarios? Existing physical models, although realistic, are intractable for addressing this problem analytically due to their complicated ...

according to the changing business, nowadays teams are cornerstones of successful organizations, in addition, with the developments and technological innovations in communication and information, virtual teams are playing more critical role in today's business. on this basis, determining factors which affect virtual team's performance are important to both scholars and practitioners. ...

Introduction Research is still emerging on how to develop school leaders’ instructional capacity. We implemented research-based practices through virtual professional leadership learning communities (VPLCs) for building examined perceptions of (a) the effectiveness VPLC as a vehicle improving practices, (b) essential components an effective VPLC, and (c) discussions within VPLC. Methods The par...

Market-oriented production systems generally have the characteristics of multi-product and small-batch production. Dynamic virtual cellular manufacturing create cells periodically in a planning horizon to respond changing demands flexibly quickly, thus are suitable for problems market-oriented systems. In current research, we propose dynamic cell reconfiguration framework under environment with...

Abstract Virtual reality (VR) technology has revolutionized the way organizations are approaching training of their workforce. By adopting elements gamification, VR developers now able to develop simulations that studies beginning demonstrate can teach vocational content in a more effective, efficient, and cost-effective manner, comparison traditional teaching approaches, such as classroom tuit...