Abstract: The Road Traffic Monitoring and Control System (RTMCS) presented in this paper is intended to offer support for the surveillance, control and monitoring of road networks. It integrates complex components in a modular, flexible and open structure in order to validate models that take into account real time constraints and include tools to simulate various traffic scenarios and communication technologies, WEB based virtual instrumentation, personalized user interfaces and relational data. The system can be used to change the configuration of the road map (to design new streets segments) or to visualize the results of the different traffic scenarios implying the tuning of various parameters. RTMCS also offers several advantages, one of the most important consisting of the possibility to choose different configuration and components using a web browser. An implementation variant, including suitable, promising new technologies, different maps configurations, communication devices and protocols and routing systems is presented and analyzed. A large set of experiments and the corresponding results highlight the functionality of the configurable virtual web instrument concept illustrated by the proposed system. Aspects regarding the possibility of a subsequent integration of new tools are also presented.
Abstract: This paper presents the rate 3/4 (triple-binary) memory 3 recursive and systematic convolutional encoders with a single shift register (TBEm3) implemented in the observer canonical form with the best frame error rate (FER) versus signal to noise ratio (SNR) performance in configuration turbo (parallel concatenated) The triple-binary turbo-codes (TBTC) were compared in terms of performance with the turbo-codes (TC) from the actual standards of communications, at the same turbo-coding rates of 3/5 and 3/4. Besides the very good FER/SNR performance, the TBTC present several other advantages that recommend them: an effect error floor low, latency diminution, more compact blocks lower delay caused by interleaving, the possibility to connect the encoder TBTC to modulation blocks of higher order.
Abstract: This article presents an online checking method to get the accumulated x-ray radiation dose for Computed Tomography imaging investigations performed to the human patients. When the patient arrived to imaging center to request a new investigation the system will generate an online verification based on the CNP. The software application will show a warning message if the radiation doze is exceeded. The software technologies used are based on web services and HL7 Version 2.3.1 standard.
Abstract: The aim of this article is to present a demonstrative Web application with Romanian language continuous speech recognition based multimodal interface. The scope of the paper also includes the presentation and testing of the capabilities of a context dependent grapheme based acoustic model for the Romanian language. The article describes the system architecture, the Web application development and the speech database used for the acoustic feature vector construction and acoustic model training. Further the task grammar is presented. At the end recognition results are presented in both offline and online operating mode. The used speech corpora together with the transcriptions are freely available for academic use on the NaviRo project website: http://users.utcluj.ro/~jdomokos/naviro/.
Abstract: Continuously emerging forms of eLearning like MOOC (Massive Open Online Courses), PLE (Personal Learning Environment) and the use of Semantic Web standards in learning environments, are consistent proof that IT, the Internet, the World Wide Web, Content Management Systems, audio/video lectures, videoconferences, Semantic Web are here to stay, evolve and furthermore, to take control of the learning process, making from it a flexible, viable, profitable and extensively used solution for delivering knowledge. In this general context, the present paper offers an eLearning state-of-the-art and an overview of the trends and technologies proposed, developed and implemented in a particular eLearning environment, over the last years, as part of a postdoctoral research program. The mentioned environment was the Moodle portal used at the “Politehnica” University of Timisoara, the implemented standards were the hCard and hCalendar microformats and the proposed model was one of collective learning through question answering.
Abstract: This paper presents a complete solution for the creation and manipulation of the 3D representationof a human face model using off the shelf components. First, the 3D model is obtained bymeans of a structured light system that is calibrated using only the vanishing points extracted from asimple planar surface. Then, an immersive interaction technique is used to manipulate the 3D model.The interaction tool is located in 3D space using a fuzzy technique with the advantages of a lowmemory usage, real-time operation and low positioning errors as compared to classical solutions. Experimentalresults including accuracy evaluation of the reconstruction and of the interaction tool arepresented. The resulting system can find applications in expression based human-computer interaction,virtual assisted cosmetic surgery, as well as in the teleconferencing, being in line with the currenttrends of intelligent user interfaces.
Abstract: The technical educational act means theory and practice, individual study, group-based projects or experimental work that involves equipment, simulation/emulation software packages and laboratory applications. In order to develop advanced e-learning tools and integrate them within online platforms for higher and postgraduate engineering education, new methodologies should be taken into consideration: project-and problem based learning, virtual laboratory (remote access to laboratory infrastructure and task evaluation) or remote assistance for diploma projects and mobility grants. This paper presents new blended learning concepts and approaches and the manner they can be adopted in engineering education, by using the symbiotic computing paradigms adapted to blended learning, especially blended learning gap and blended learning bridge.
Abstract: An important part of the articles published in the last years highlight teaching and learning approaches and technologies integrated in complex applications and present the concepts used for creating and presenting the educational content. They refer to the methodologies used in self-and collaborative learning, including problem-and project-based learning. The assessment process is also illustrated in several articles but there is no a generic framework that complies with the rules of both formal and non-formal education acts. Our proposal is focused on advanced concepts for improving the educational services and the manner a generic framework for blended learning can be customized for higher education and lifelong learning. In addition, the paper proposes a virtual collaboration prototype that supports interpersonal and inter-process collaborative learning services that can be used as core of any rapidly growing educational community.
Abstract: Power factor correction in electrical distribution networks can lead to harmonic risk increase. The paper presents a method to anticipate the amplification of network harmonic conditions based on the equivalent network harmonic impedance which can be monitored using virtual instruments. Based on the values of the harmonic impedance and the required reactive power, a mathematical model is implemented through an algorithm and software classes are developed for the solution regarding the type of the reactive power sources (capacitor banks or filters) and the place where it will be installed.