No abstract

The technology-assisted teaching and learning process has seen a spurt in growth in the last two decades. The education technology field has rapidly embraced new tools and techniques to enhance the student learning experience. With the evolution of multimedia elements such as digital images, audio, video, graphics, and animation, the learning supported by technology has made learning flexible and accessible in terms of time and place. With Wi-Fi enabled campuses, it is much easier for students to learn using their smart devices enabled by hypermedia content. Hypermedia, also known as active media, is the multimedia content that brings in interactivity, where the user can interact with the system, rather than viewing the content in passive mode. This helps in generating a dialogue between the system and user, sustaining user interest. Some examples of hypermedia are interactive quizzes, games, interactive videos, etc. This study aims to investigate and evaluate four interactive tools, namely FluentU, Duolingo, Livemocha, and Hello English, which are designed for language learning. A qualitative assessment of the applications, including a review of past literature on language learning using tools, was undertaken. The expert evaluation or assessment was done using Jakob Nielsen’s ten heuristics or design guidelines. The objective was to compare the applications by measuring their usability against the standard heuristics. The goal of any usability study is user satisfaction. Through this interface evaluation, the researchers have concluded for designers that could be considered during future development of hypermedia-based tools.

No abstract

The flying networks provide an efficient solution for a wide range of military and commercial purposes. The demand for portable and flexible communication is directed towards a quick growth in interaction among unmanned aerial vehicles (UAVs). Due to the frequent change in topology and high mobility of vehicles, routing and coordination becomes a challenging task. To maximize the throughput of the network, this study addresses the UAV swarm’s problems related to the coordination and routing and defines the proposed solution to solve these issues. For this, a network is assumed which contains an equal number of dynamic vehicles. It also presents the communication graph concept of UAVs and designs a fixed-wing UAV model to improve the efficiency of the network in terms of throughput. Furthermore, the proposed algorithm based on Cauchy particle swarm optimization (CPSO) aims towards the better performance of UAV swarms and aims to solve the combinatorial problem. The simulation results show and confirm the performance of the proposed algorithm.

Today's generation has perceived wireless networking prospective applications in tremendously erratic and vibrant surroundings. Businesses as well as individuals pick wireless medium as their choice as it facilitates flexibility of location. It's obvious due to its convenience in terms of mobility, portability or even ease of installation at any preferred location. Mobile network has an intrinsic scalability restraint in terms of attainable network capability. The potential challenge of wireless communication in Smart cities network is, the environs that these communications travel through is changeable. So, the wireless networks which have ability to resolve their own fragmented communication links will definitely enhance their pervasive recognition. Due to the expansion of network capability changes are made to the network design and infrastructures giving way to new techniques for system development for this type of medium. Since it's the beginning there are initial hiccups, despite that, the modern advances in self-healing wireless networks are good enough in resolving the problem. The downlinks are repaired by using power conscious steady nodes. Authors have proposed, a self-healing structure and mobile Power aware stable nodes for smart city networks. Proposed design has been checked using NS2 simulator with existing schemes and show good results in most of the cases.