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2018 IEEE International Conference on Pervasive Computing and communications Workshops, PerCom Workshops 2018

作者： Kralevska, Katina Dimitrios Vergados, J. Jiang, Yuming Michalas, Angelos Dep. of Information Security and Communication Technology NTNU Norwegian University of Science and Technology Norway School of Electrical and Computer Engineering National Technical University of Athens Greece Department of Informatics Engineering Technological Education Institute of Western Macedonia Kastoria Greece

ISBN: (纸本)9781538632277

The recently created IETF 6TiSCH working group combines the high reliability and low-energy consumption of IEEE 802. 15.4e Time Slotted Channel Hopping with IPv6 for industrial Internet of Things. We propose a distributed link scheduling algorithm, called Local Voting, for 6TiSCH networks that adapts the schedule to the network conditions. The algorithm tries to equalize the link load (defined as the ratio of the queue length over the number of allocated cells) through cell reallocation. Local Voting calculates the number of cells to be added or released by the 6TiSCH Operation Sublayer 6top. Compared to a representative algorithm from the literature, Local Voting provides simultaneously high reliability and low end-to-end latency while consuming significantly less energy. Its performance has been examined and compared to On-the- fly algorithm in 6TiSCH simulator by modeling an industrial environment with 50 sensors. © 2018 IEEE.

关键词： Resource allocation

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Big Data from Space for Precision Agriculture Applications

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IOP Conference Series: Earth and Environmental Science 2020年第1期509卷

作者： F Bovolo L Bruzzone D Fernández-Prieto C Paris Y T Solano-Correa E Volden M Zanetti Fondazione Bruno Kessler Center for Information and Communication Technology Trento Italy Dep. of Information Engineering and Computer Science University of Trento Trento Italy European Space Agency (ESA) ESRIN Frascati Italy

This paper presents an approach for precision agriculture large scale applications based on the analysis of big data consisting in Satellite Image Time Series (SITS) acquired by ESA Sentinel-2 (S2) satellite constellation. The approach has been developed in the framework of the ESA SEOM - Scientific Exploitation of Operational Missions - S2-4Sci Land and Water project [1]. To focus only on agricultural areas, images are first filtered based on a land cover (LC) map that is generated by updating available old maps by means of recent images. Then S2 SITS are used to analyse agricultural areas. Two macro challenges are therefore considered: (i) automatic update of LC maps and generation of agricultural areas mask; and (ii) unsupervised multi-temporal (MT) fine characterization of land plots.

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A virtual reality dance self-learning framework using Laban movement analysis

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Journal of engineering Science and Technology Review 2017年第5期10卷 25-32页

作者： Sun, Guoyu Chen, Wenjuan Li, Haiyan Sun, Qingjie Kyan, Matthew Muneesawang Zhang, Pengzhou Animation School Communication University of China Beijing100024 China Dep. of Electrical Engineering and Computer Science York University TorontoONM3J 1P3 Canada Dep. of Electrical and Computer Engineering Naresuan University Phisanulok65000 Thailand

The capabilities of general motion evaluation algorithms are significantly limited in analyzing the stylistic qualities and expressions of dance movement. This study proposes a novel dance self-learning framework on the basis of the principles of Laban movement analysis (LMA) to facilitate trainees in automatically analyzing dance movements and correcting dance techniques without an expert. First, a "shape-effort" feature description model was presented in this framework to reflect the subtleties of dance movement. The evaluation of body-shape performance was obtained via open-end dynamic time warping algorithm. Next, rhythm was qualitatively assessed by curve fitting, whereas effort was measured by using standard deviation. Finally, constructive instructions were generated in this framework on basis of the assessment scores of the movement of the trainees. The framework was implemented in cave automatic virtual environment, and its effectiveness and feasibility were verified through experiments. Results demonstrate that the feature description model with 23 LMA parameters can be used in describing dance movements. Multi-mode feedback with direct instructions for the problems in question satisfies the learning habits of the trainee. The quality of the trainees' movements achieves an average of 10% overall improvement by using the framework. Body-shape performance acquires the most improvement of 18%, followed by effort. This study provides a new research method for evaluation and training of dance movements. © 2017 Eastern Macedonia and Thrace Institute of Technology.

关键词： Virtual reality

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Investigative Study on the Interaction and Applications of Plasma Activated Water(PAW)

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IOP Conference Series: Materials Science and engineering 2020年第1期870卷

作者： Zainab T. Al-Sharify Talib A. Al-Sharify baker W. al-Obaidy Ameer M. al-Azawi Env. Eng. Dep. College of Engineering Mustansiriyah University. Baghdad – Iraq Chem.Eng Dep. University of Birmingham Birmingham United Kingdom Assistant Professor Computer communication department Al Rafidain University Baghdad Iraq Electronic technical diploma Authorized PAE Company in Baghdad Director of the Spanish Technical company in Iraq

Cold plasma is a budding technology that can be used as a nonthermal disinfectant and for surface modification which is free of chemicals and is environmentally friendly. The treatment of water with plasma, producing plasma activated water (PAW), generates an acidic condition resulting in the formation of reactive oxygen species (ROS), reactive nitrogen species (RNS), and creates change in the redox potential as well as conductivity. Consequently, the chemical composition of water and PAW differ from each other and can now be employed as a substitute for disinfection against microbes. The various sources of plasma used for PAW production, its physical and chemical properties and its prospective uses are reviewed in this paper. Particularly, the physiochemical properties of PAW will be discussed in the context of its acidity, conductivity, the amount of ROS and RNS, as well as its redox potential. Since the results are microbial in nature, the microbial disinfection with the use of PAW will also be reviewed. Lastly, the usage of PAW to enhance agricultural methods, such as its effect in plant growth and stimulating seed germination, is also discussed. It can be interpreted that PAW synergistically disinfects food as well as enhances the growth of seedlings. The boost in plant growth conceivably be mainly due to the increase in concentration of nitrate and nitrite ions in PAW. Therefore, in addition to the antimicrobial action of PAW, submerging seedlings in PAW supplements the germination of seeds and plant growth. This could possibly help fight against the drought stress and improve the yield of crops.

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A secure mutual trust scheme for wireless sensor networks 26

A secure mutual trust scheme for wireless sensor networks

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26th IEEE International Symposium on Industrial Electronics, ISIE 2017

作者： Dahgwo Yein, Alan Lin, Chih-Hsueh Hsieh, Wen-Shyong Dep. of Information Management Shu-Te University Kaohsiung Taiwan Dep. of Computer and Communication Shu-Te University Kaohsiung Taiwan Dep. of Computer Science and Engineering National Sun Yat-sen University Kaohsiung Taiwan

ISBN: (纸本)9781509014125

In this paper, we propose a secure mutual trust scheme based on the concept of chameleon hash function, for wireless sensor networks (WSNs). In the proposed scheme, the base station (BS), holding two common secrets, issues an identity to every dep.oyed sensor node. An identity contains a public data and a private key. The public data is used to present a node, and the private key is used to make mutual trust keys with other node's public data. A public data can be used in verifying the legitimacy of the node. The mutual trust key is the evidence that a node owns the related public data. At any time, or after finding malicious nodes or dep.oying new nodes, BS will broadcast new group key to all sensor nodes by multiple hopping. Following the group key broadcasting and rebroadcasting, the still-legal nodes can set new information in their public data, private key, hop counters, public parameters, and neighbor nodes set, which contains the public data and hop counter of its neighboring nodes. Based on the new information, a sensor node can make the mutual trust keys with its neighboring nodes to do message authentication and secure communicating, or to set up a secure path to forward the sensed information to BS by multiple relaying. The security analysis shows that the proposed scheme can revoke the right of malicious sensor nodes, dep.oy new sensor nodes, and work well under malicious attacking. As the result of performance comparison, the proposed secure scheme is superior to the related works. © 2017 IEEE.

关键词： Sensor nodes

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Towards autonomous reconfiguration in distribution networks: An approach based on finite state automaton models

Towards autonomous reconfiguration in distribution networks:...

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2017 Energy and Sustainability in Small Developing Economies, ES2DE 2017

作者： Košt'álová, Alena Carvalho, Pedro M. S. Kubalčík, Marek Dep. of Computer and Communication Systems Tomas Bata University in Zlin Czech Republic Electrical Engineering and Computer Dep. Instituto Superior Tecnico Lisbon Portugal Department of Process Control Tomas Bata University in Zlin Czech Republic

ISBN: (纸本)9781538620663

The demand on distribution network reconfiguration abilities is increasing. This paper proposes a Finite State Automaton model of a distribution network that deals with topologically safe reconfiguration. Autonomous operation of distribution networks can be designed, analysed and implemented in day-to-day operation with the aid of these automata: through supervisory control. Two approaches to supervisor design are proposed. One for the normal operating mode and the other for the contingency mode. Simple and comprehensive examples illustrate the approaches. © 2017 IEEE.

关键词： Topology

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A Compact 9 GHz Microwave Imaging System

A Compact 9 GHz Microwave Imaging System

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IEEE International Workshop on Electromagnetics, Applications and Student Innovation (iWEM)

作者： Kang-Chun Peng Chiu-Chin Lin Cyuan-Fong Li Cheng-Yuan Hung Yu-Sung Hsieh Dep. of Computer and Communication Engineering National Kaohsiung Univ. of Science and Technology Kaohsiung Taiwan Opto-electronics Equipment Department Metal Industries Research & Development Center Kaohsiung Taiwan

This work develops a compact 9 GHz microwave imaging system. The core of the system is a vector network analyzer (VNA) which utilizes range-correlation architecture to suppress the phase noise of the received signal. To overcome the bottleneck that conventional mixer-based phase detectors have limited phase detection range, a novel quadrature phase detection algorithm is proposed. The experimental results show that the microwave imaging system can well detect the bone image of a chicken wing.

关键词： Microwave imaging Microwave oscillators Microwave antennas Microwave communication

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A Load Balancing Algorithm for Resource Allocation in IEEE 802.15.4e Networks

A Load Balancing Algorithm for Resource Allocation in IEEE 8...

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IEEE International Conference on Pervasive Computing and communications

作者： Katina Kralevska Dimitrios J. Vergados Yuming Jiang Angelos Michalas Dep. of Information Security and Communication Technology NTNU Norwegian University of Science and Technology School of Electrical and Computer Engineering National Technical University of Athens Department of Informatics Engineering Technological Education Institute of Western Macedonia Kastoria Greece

ISBN: (纸本)9781538632284

The recently created IETF 6TiSCH working group combines the high reliability and low-energy consumption of IEEE 802.15.4e Time Slotted Channel Hopping with IPv6 for industrial Internet of Things. We propose a distributed link scheduling algorithm, called Local Voting, for 6TiSCH networks that adapts the schedule to the network conditions. The algorithm tries to equalize the link load (defined as the ratio of the queue length over the number of allocated cells) through cell reallocation. Local Voting calculates the number of cells to be added or released by the 6TiSCH Operation Sublayer (6top). Compared to a representative algorithm from the literature, Local Voting provides simultaneously high reliability and low end-to-end latency while consuming significantly less energy. Its performance has been examined and compared to On-the-fly algorithm in 6TiSCH simulator by modeling an industrial environment with 50 sensors.

关键词： Schedules IEEE 802.15 Standard Scheduling algorithms Reliability Resource management Scheduling Computational modeling management of resources Scheduling algorithms Computational modeling Link Load Resource utilization Vote INSTITUTE OF ELECTRICAL AND ELECTRONIC ENGINEERS Internet of things IPv6 Load balancing

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Assessment of spatial and temporal properties of Ka/Q band earth-space radio channel across Europe using Alphasat Aldo Paraboni payload

Assessment of spatial and temporal properties of Ka/Q band e...

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International Journal of Satellite communications and Networking

作者： Ventouras, Spiros Martellucci, Antonio Reeves, Richard Rumi, Emal Fontan, Fernando P. Machado, Fernando Pastoriza, Vicente Rocha, Armando Mota, Susana Jorge, Flavio Panagopoulos, Athanasios D. Papafragkakis, Apostolos Z. Kourogiorgas, Charilaos I. Fiser, Ondrej Pek, Viktor Pesice, Petr Grabner, Martin Vilhar, Andrej Kelmendi, Arsim Hrovat, Andrej Vanhoenacker-Janvier, Danielle Quibus, Laurent Goussetis, George Costouri, Alexios Nessel, James STFC Rutherford Appleton Laboratory RAL Space Oxford United Kingdom Escola de Enxeñaría de Telecomunicación University of Vigo Vigo Spain Dep. Elect. Telec. e Informática Instituto de Telecomunicações Aveiro Portugal School of Electrical and Computer Engineering National Technical University of Athens Athens Greece Meteorological Department Institute of Atmospheric Physics ASCR Prague Czech Republic TESTCOM Czech Metrology Institute Prague Czech Republic Department of Communication Systems Joef Stefan Institute Ljubljana Slovenia ICTEAM Université catholique de Louvain Louvain-la-Neuve Belgium School of Engineering and Physical Sciences Heriot-Watt University Edinburg United Kingdom Antennas and Optical Communications Branch NASA Glenn Research Center ClevelandOH United States TEC-EFW European Space Agency ESTEC Noordwijk Netherlands

The upcoming migration of satellite services to higher bands, namely, the Ka- and Q/V-bands, offers many advantages in terms of bandwidth and system capacity. However, it poses challenges as propagation effects introduced by the various atmospheric phenomena are particularly pronounced in these bands and can become a serious constraint in terms of system reliability and performance. This paper presents the goals, organisation, and preliminary results of an ongoing large-scale European coordinated propagation campaign using the Alphasat Aldo Paraboni Ka/Q band signal payload on satellite, performed by a wide scientific consortium in the framework of a European Space Agency (ESA) project. The main objective of this activity is the experimental characterisation of the spatial and temporal correlation over Europe of the radio channel at Ka and Q band for future modelling activities and to collect data for development and testing of fading mitigation techniques. © 2019 John Wiley & Sons, Ltd.

关键词： Earth (planet) Fading (radio) Radio waves Satellite communication systems Satellites Aldo Paraboni payload Alphasat ASALASCA ASAPE Fade mitigation techniques Ka band Measurement campaign Q bands Satellite communication services Slant path

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A secure mutual trust scheme for wireless sensor networks

A secure mutual trust scheme for wireless sensor networks

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IEEE International Symposium on Industrial Electronics (ISIE)

作者： Alan Dahgwo Yein Chih-Hsueh Lin Wen-Shyong Hsieh Dep. of Information Management Shu-Te University Taiwan Dep. of Computer and Communication Shu-Te University Kaohsiung Taiwan Dep. of Computer Science and Engineering National Sun Yat-sen University Taiwan

ISBN: (纸本)9781509014132

关键词： Wireless sensor networks Public key Receivers Broadcasting Radiation detectors Message authentication Elliptic curves

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