the production, distribution, and consumption of information are the most important development indices of any nation. plenty of opportunities were created by e-learning which have overall paved the grounds for and enriched the presentation of learning materials through advanced audiovisual educational facilities. such learning environments are by and large flexible and provide more appropriate...

this study aimed at examining the major mobile wireless technologies, that is,mobile phones and the possibilities associated with them, currently in use in theeducational domains, with an emphasis on language teaching and learning practices.accordingly, some of the most typical studies using different functions of mobilephones such as e-mail, multimedia capabilities, wireless application protoc...

In this article, an experimental calibration of the constraining linkage of a wire-actuated parallel robot is discussed. The experimental test bed includes a prototyped 4 degrees of freedom wire-actuated parallel manipulator and an optical tracking system. The parallel manipulator employs hybrid actuation ofjoints and wires and includes a rigid branch to constrain the motion of its mobile platf...

Heterogeneous networks allow mobile terminals to take advantage of complementary radio technologies for their concurrent connections. In this paper we propose a mechanism for automated radio access network selection with several novelties: It enables terminals to build prioritized lists of target access networks independently for each of their active connections. It aims to satisfy user prefere...

Much of the primary research of Louisiana State University’s Robotics Research Laboratory (RRL) is conducted with the help of a specially modified Denning MRV (mobile robot vehicle) III research robot (figure 1). MRV III is an excellent test bed for robotics research: It has a straightforward user interface, it is easily modified to accept new features, and it ■ The Department of Computer Scien...

The fast growing deployment of mobile information technologies in the healthcare sector presents valuable opportunities to explore the impact of mobile technologies in this industry. As the demand on the health dollar increases, many healthcare providers throughout the world are starting to take advantage of mobile technologies as part of their key initiatives to provide better quality of servi...

We estimated HIV-1 incidence and characterized risk factors associated with recent infection among participants of a mobile HIV voluntary counseling and testing (VCT) pilot program in two communities in Zimbabwe (N = 1096). HIV-1 infection was diagnosed using a parallel rapid testing algorithm. Recent HIV-1 infections were characterized using the BED immunoglobulin G capture enzyme immunoassay ...

The development of computer technology has created artifacts that have more complex and intelligent functions. Such artifacts need more sophisticated interfaces than primitive artifacts. In this paper, we discuss which characteristics are appropriate for interfaces with artifacts and propose a concept of active affordance. We describe an autonomous mobile chair that we built as a test bed for a...

In this paper, we propose a mobile IP model that can provide the mobility on both the IPv4 and IPv6 transport network. The proposed model provides IP mobility regardless of the type of transport network. To provide a seamless handover among different wireless networks, we propose the MBB(Make Before Break) handover method among multiple network interfaces, such as Ethernet, WiFi, Wibro, HSDPA e...

—This paper considers the problem of computational resource allocation for a team of dynamic mobile robots subject to limited communication and processing bandwidth, and uncertain state information. We describe a robot test bed, the Dynabot, that exhibits these constraints and characterize its information flow and state estimation accuracy. These models are used for simulating formation of a gr...