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IOP Conference Series: Materials Science and engineering 2018年第1期433卷

作者： G. B. Abdulhussein T. Kanakis A. A. R. Altahir Computer Network Engineering Dept. - Faculty of Arts Science & Technology – University of Northampton Northampton UK Faculty of Arts Science & Technology – University of Northampton Northampton UK Electrical Engineering Department Faculty of Engineering University of Kerbala

Detecting network topology is essential to cope with any existing or future network changes such as the loss of network devices (routers, switches, or hubs), interfaces going down, or cable issues, any if which might change packets' paths, interfere with the network structure, interface status, or neighbour status, or disconnect and reconnect devices. This paper develops a low-cost network detection system that is responsible for discovering network topology by identifying each network device's neighbours to allowed the network administrators to know where each device and its neighbours are located, maintaining these devices' information in a local database to be used for visualisation purposes to demonstrate relevant changes inside the devices such as IP address, interfaces, and neighbours by using a configured hardware device. This system can be implemented in any large to medium size of network, measured depending on the number of users that join such a network. In addition, it can be used to remotely fix any minor issues that are detected which may later affect the entire network. The experimental results substantiate the fact that the system resolves the high cost of hardware experienced by previous work in this field.

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Soft Electromagnetic Actuators: Miniature Soft Electromagnetic Actuators for Robotic Applications (Adv. Funct. Mater. 18/2018)

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Advanced Functional Materials 2018年第18期28卷

作者： Thanh Nho Do Hung Phan Thuc‐Quyen Nguyen Yon Visell Department of Electrical Computer Engineering Media Arts and Technology Program California NanoSystems Institute University of California Santa Barbara CA 93106 USA Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA

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Users’ perceived control, trust and expectation on privacy settings of smartphone 9th

Users’ perceived control, trust and expectation on privacy ...

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9th International Symposium on Cyberspace Safety and Security, CSS 2017

作者： Zhou, Yun Raake, Alexander Xu, Tao Zhang, Xuyun School of Education Shaanxi Normal University Xi’anShaanxi710062 China Audiovisual Technology Group Institute for Media Technology University of Technology Ilmenau Ilmenau98693 Germany School of Software and Microelectronics Northwestern Polytechnical University Xi’anShaanxi710072 China State Key Laboratory for Manufacturing Systems Engineering Xi’an Jiaotong University Xi’anShaanxi710054 China Department of Electrical and Computer Engineering University of Auckland Auckland1010 New Zealand

ISBN: (纸本)9783319694702

A common issue is that a large number of authorized apps use important and sensitive personal information without arousing users’ full awareness. Existing schemes for privacy protection on smartphones try to provide users with privacy settings to control privacy leakage. Privacy settings on smartphone are intended to inform users about risks of privacy leakage and let users take over control of smartphone. Therefore, it is essential to understand and measure how much users perceive and trust these settings. To this end, we design and conduct a fine-grained online survey with 222 respondents. We collect the demographics as well as users’ smartphone usage, covering not only participants’ basic background information like age, gender, job, but also time of smartphone use per day, respective importance and sensitivity level of personal data, and their smartphone OSs. In this paper, we investigate users’ current privacy perception and protection on smartphone in different groups, discussing participants’ responses to (1) Rating the importance and sensitivity of personal information;(2) Trust on existing privacy protection;(3) Perceived control on smartphone;(4) Frequency of searching privacy knowledge;(5) Concerns about manufacturer and third-party company’s behaviors on personal data and decision. © 2017, Springer International Publishing AG.

关键词： Surveys

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Role of element-specific damping on the ultrafast, helicity-independent all-optical switching dynamics in amorphous (Gd,Tb)Co thin films

arXiv

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arXiv 2019年

作者： Ceballos-Sanchez, Alejandro Pattabi, Akshay El-Ghazaly, Amal Ruta, Sergiu Simon, Christian P. Evans, Richard F.L. Ostler, Thomas Chantrell, Roy W. Kennedy, Ellis Scott, Mary Bokor, Jeffrey Hellman, Frances Department of Materials Science and Engineering University of California Berkeley BerkeleyCA94720 United States Materials Sciences Division Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Department of Electrical Engineering and Computer Sciences University of California Berkeley BerkeleyCA94720 United States Department of Physics University of York Heslington YorkYO10 5DD United Kingdom Department of Physics University of California Berkeley BerkeleyCA94720 United States Materials and Engineering Research Institute Sheffield Hallam University Howard Street SheffieldS1 1WB United Kingdom Faculty of Science Technology and Arts Sheffield Hallam University Howard Street SheffieldS1 1WB United Kingdom National Center for Electron Microscopy Molecular Foundry Lawrence Berkeley National Laboratory BerkeleyCA94720 United States

Ultrafast control of the magnetization in ps timescales by fs laser pulses offers an attractive avenue for applications such as fast magnetic devices for logic and memory. However, ultrafast helicity-independent all-optical switching (HI-AOS) of the magnetization has thus far only been observed in Gd-based, ferrimagnetic amorphous (a-) rare earth-transition metal (a-RE-TM) systems, and a comprehensive understanding of the reversal mechanism remains elusive. Here, we report HI-AOS in ferrimagnetic a-Gd22−xTbxCo78 thin films, from x = 0 to x = 18, and elucidate the role of Gd in HI-AOS in a-RE-TM alloys and multilayers. Increasing Tb content results in increasing perpendicular magnetic anisotropy and coercivity, without modifying magnetization density, and slower remagnetization rates and higher critical fluences for switching but still shows picosecond HI-AOS. Simulations of the atomistic spin dynamics based on the two-temperature model reproduce these results qualitatively and predict that the lower damping on the RE sublattice arising from the small spin-orbit coupling of Gd (with L = 0) is instrumental for the faster dynamics and lower critical fluences of the Gd-rich alloys. Annealing a-Gd10Tb12Co78 leads to slower dynamics which we argue is due to an increase in damping. These simulations strongly indicate that acounting for element-specific damping is crucial in understanding HI-AOS phenomena. The results suggest that engineering the element specific damping of materials can open up new classes of materials that exhibit low-energy, ultrafast HI-AOS. Copyright © 2019, The Authors. All rights reserved.

关键词： Optical switches

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The 2021 report of the Lancet Countdown on health and climate change: code red for a healthy future

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The Lancet 2021年第10311期398卷 1619-1662页

作者： Romanello, Marina McGushin, Alice Di Napoli, Claudia Drummond, Paul Hughes, Nick Jamart, Louis Kennard, Harry Lampard, Pete Solano Rodriguez, Baltazar Arnell, Nigel Ayeb-Karlsson, Sonja Belesova, Kristine Cai, Wenjia Campbell-Lendrum, Diarmid Capstick, Stuart Chambers, Jonathan Chu, Lingzhi Ciampi, Luisa Dalin, Carole Dasandi, Niheer Dasgupta, Shouro Davies, Michael Dominguez-Salas, Paula Dubrow, Robert Ebi, Kristie L Eckelman, Matthew Ekins, Paul Escobar, Luis E Georgeson, Lucien Grace, Delia Graham, Hilary Gunther, Samuel H Hartinger, Stella He, Kehan Heaviside, Clare Hess, Jeremy Hsu, Shih-Che Jankin, Slava Jimenez, Marcia P Kelman, Ilan Kiesewetter, Gregor Kinney, Patrick L Kjellstrom, Tord Kniveton, Dominic Lee, Jason K W Lemke, Bruno Liu, Yang Liu, Zhao Lott, Melissa Lowe, Rachel Martinez-Urtaza, Jaime Maslin, Mark McAllister, Lucy McMichael, Celia Mi, Zhifu Milner, James Minor, Kelton Mohajeri, Nahid Moradi-Lakeh, Maziar Morrissey, Karyn Munzert, Simon Murray, Kris A Neville, Tara Nilsson, Maria Obradovich, Nick Sewe, Maquins Odhiambo Oreszczyn, Tadj Otto, Matthias Owfi, Fereidoon Pearman, Olivia Pencheon, David Rabbaniha, Mahnaz Robinson, Elizabeth Rocklöv, Joacim Salas, Renee N Semenza, Jan C Sherman, Jodi Shi, Liuhua Springmann, Marco Tabatabaei, Meisam Taylor, Jonathon Trinanes, Joaquin Shumake-Guillemot, Joy Vu, Bryan Wagner, Fabian Wilkinson, Paul Winning, Matthew Yglesias, Marisol Zhang, Shihui Gong, Peng Montgomery, Hugh Costello, Anthony Hamilton, Ian Institute for Global Health University College London London UK United Kingdom Institute for Sustainable Resources University College London London UK United Kingdom UCL Energy Institute University College London London UK United Kingdom Institute for Environmental Design and Engineering University College London London UK United Kingdom Department of Geography University College London London UK United Kingdom The Bartlett School of Sustainable Construction University College London London UK United Kingdom Centre for Human Health and Performance University College London London UK United Kingdom School of Agriculture Policy and Development University of Reading Reading United Kingdom Department of Meteorology University of Reading Reading United Kingdom The Walker Institute University of Reading Reading United Kingdom Department of Health Sciences University of York York United Kingdom Institute for Environment and Human Security United Nations University Bonn Germany Centre on Climate Change and Planetary Health London School of Hygiene & Tropical Medicine London UK United Kingdom Centre for Mathematical Modelling of Infectious Diseases London School of Hygiene & Tropical Medicine London UK United Kingdom Department of Public Health Environments and Society London School of Hygiene & Tropical Medicine London UK United Kingdom Department of Earth System Science Tsinghua University Beijing China Department of Environment Climate Change and Health World Health Organization Geneva Switzerland Institute for Environmental Sciences World Health Organization Geneva Switzerland Centre for Climate Change and Social Transformations School of Psychology Cardiff University Cardiff United Kingdom Yale Center on Climate Change and Health Yale University New Haven CT United States School of Government University of Birmingham Birmingham United Kingdom Economic analysis of Climate Impacts and Policy Centro Euro-Mediterraneo sui Cambiamenti Climatic

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Towards ‘verifying’ a water treatment system

arXiv

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arXiv 2017年

作者： Wang, Jingyi Jun, Sun Jia, Yifan Qin, Shengchao Xu, Zhiwu Singapore University of Technology and Design School of Computing Media and the Arts Teesside University College of Computer Science and Software Engineering Shenzhen University TUV-SUD Asia Pacific Pte Ltd Singapore

Modeling and verifying real-world cyber-physical systems is challenging, which is especially so for complex systems where manually modeling is infeasible. In this work, we report our experience on combining model learning and abstraction refinement to analyze a challenging system, i.e., a real-world Secure Water Treatment system (SWaT). Given a set of safety requirements, the objective is to either show that the system is safe with a high probability (so that a system shutdown is rarely triggered due to safety violation) or not. As the system is too complicated to be manually modeled, we apply latest automatic model learning techniques to construct a set of Markov chains through abstraction and refinement, based on two long system execution logs (one for training and the other for testing). For each probabilistic safety property, we either report it does not hold with a certain level of probabilistic confidence, or report that it holds by showing the evidence in the form of an abstract Markov chain. The Markov chains can subsequently be implemented as runtime monitors in SWaT. Copyright © 2017, The Authors. All rights reserved.

关键词： Embedded systems

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BHEL Smart Wall Blowing System: New Product Development in Manufacturing Industry

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Vikalpa 2021年第4期45卷 240 - 249页

作者： Abhishek Kumar R. Dhanuskodi R. Kaliappan K. Nandakumar Abhishek Kumar teaches design philosophies at Anant National University Ahmedabad. He earned his Ph.D in Management from Pondicherry University. He is an Economics graduate from Calcutta University and MBA from BIM Trichy. He has published more than 20 articles in reputed international journals has authored two books written articles and columns for newspapers and is quoted on issues related to leadership and marketing by various media platforms. His research work comprises construction of brand personality scale for media aesthetics and phenomenological design. His recent publications are on philosophy of a photograph hermeneutic reality of product and on philosophy of intimate spaces. R. Dhanuskodi has nearly 40 years of R&D experience at BHEL India in technical areas applicable for thermal power plants. He is a life member of The Institution of Engineers (India) and The Combustion Institute. He has won two BHEL’s Excel awards under the best author category for technical papers. He has visited France Netherlands and Germany under Indo-Europe Clean Coal Development Program. He has guided 42 UG PG and PhD project works. He holds 11 patents 40 copyrights and 2 design registrations. He has presented papers in 20 conferences and published in 10 national and international journals. R. Kaliappan completed his bachelors in electrical and electronics engineering and Masters in Computer Science. He has 36 years of research experience in different fields of power generation and power plant subsystems such as heat transfer studies on boiler circulation efficiency improvements of boiler subsystems product improvements/ enhancements and setting up test facilities for research studies. He has published a number of technical papers on MHD power generation and heat transfer studies in various national and international journals. He has more than 25 patents and copyrights on products development related to power boilers. He has won BHEL’S gold medal for product development for Smart Wall Blowing system. K. Nandakumar

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Control System of a Semi-Autonomous Mobile Robot

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IFAC-PapersOnLine 2016年第25期49卷 460-469页

作者： Škrabánek, Pavel Vodika, Pavel Yildirim-Yayilgan, Sule Faculty of Electrical Engineering and Informatics University of Pardubice Studentská 95 Pardubice532 10 Czech Republic Faculty of Computer Science and Media Technology Norwegian University of Science and Technology postboks 191 GjøvikNO-2802 Norway

In this paper, a control system, which has been designed for a semi-autonomous mobile robot, is presented. The robot has been developed as a part of a teaching aid. The teaching aid is aimed at practice of a path-planning theory. The main purpose of the robot within the teaching aid is physical execution of a path-plan scheduled by a high-level control system. The execution of path-plans is required to be accomplished by the robot autonomously, hence the ‘semi-autonomous’ appellation. The robot is based on an Arduino UNO microcontroller board. The robot acquires information about his workspace via reflectance sensors, encoders, and a magnetometer sensor. Since all these sensors provide only very limited information about the workspace, all the acquired data has to be used with utmost effectiveness. Thus, processing of the sensor data and multi-sensor integration is also considered in this paper. © 2016

关键词： computer control systems Control theory Data integration Data processing Intelligent robots Leveling (machinery) Machine design Mobile robots Motion planning Navigation Robot programming Autonomous Mobile Robot High level control systems Limited information Magnetometer sensors Microcontroller boards Multi sensor integrations Reflectance sensors Teaching aids

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Fifth international workshop on Behavior Change Support Systems (BCSS 2017)

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CEUR Workshop Proceedings 2017年 1822卷 1-6页

作者： Tikka, Piiastiina Klaassen, Randy Karppinen, Pasi Van Delden, Robby De Vries, Roelof Van Gemert-Pijnen, Lisette Oinas-Kukkonen, Harri Heylen, Dirk Oulu Advanced Research on Service and Information Systems Group Faculty of Information Technology and Electrical Engineering University of Oulu Oulu Finland Human Media Interaction Faculty of Electrical Engineering Mathematics and Computer Science University of Twente Enschede Netherlands Psychology Health and Technology Faculty of Behavioural Management and Social Sciences University of Twente Enschede Netherlands

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A Novel Technique for Quantifying Clusters Based on Small Squares in a Spatial Prisoner’s Dilemma

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Procedia computer Science 2017年 112卷 2497-2505页

作者： Ryota Matsumoto Masahiro Tokumitsu Hironao Koshimizu Yoshiteru Ishida Department of Electrical and Control Engineering National Institute of Technology Yonago College 4448 Hikonacho Yonago Tottori 683-0854 Japan Department of Liberal Arts National Institute of Technology Yonago College 4448 Hikonacho Yonago Tottori 683-0854 Japan Department of Computer Science and Engineering Toyohashi University of Technology 1-1 Hibarigaoka Toyohashi Aichi 441-8580 Japan

A number of studies have revealed and investigated how the clusters organized by cooperators emerge in a spatial prisoner’s dilemma. However, a qualitative analysis of the clusters formed by the cooperators has not yet been studied. This paper aims to propose a new technique for quantifying clusters that consist of players with cooperative strategies. The proposed method can be applied to the spatial prisoner’s dilemma in a square lattice network. In the proposed method, a minimum cluster is defined as a group of the cooperators based on a small square (2 by 2). This paper also defines a degree of the clusters by extending the small squares that based on how the players organize themselves into coordinated groups. The authors analyze and compare with typical examples of the clusters in the spatial prisoner’s dilemma. By analyzing the examples, this paper demonstrates that the proposed method quantifies the degree of the clusters organized by the cooperators. The authors also examine the significance of the proposed method by the simulations of the spatial prisoner’s dilemma.

关键词： Spatial prisoner’s dilemma prisoner’s dilemma game theory clusters of cooperators cluster index of cooperators cooperative strategies

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