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International Conference on Communications, Signal Processing, and their Applications (ICCSPA)

作者： Abdi Wahab Rizal Broer Bahaweres Mudrik Alaydrus Muhaemin Riyanarto Sarno Graduate Program of Electrical Engineering Department Mercu Buana University Jakarta Indonesia Department of Information Systems STMIK Indonesia Jakarta Indonesia Department of Informatics Engineering Faculty of Information Tech ITS Surabaya Indonesia

The number of VoIP users in Indonesia is very low, although the cost offered by VoIP is smaller than using pulsed phone. One of the reason is security provided by the VoIP service provider is still lacking. VoIP users have not received yet the security service to ensure the security of communications. This study tries to secure communications between VoIP users using encryption module that is integrated with VoIP client Sipdroid running on Android Smartphone. It is possible for VoIP users because VoIP client that can only be accessed by VoIP users. The result obtained after integration with encryption module using three encryption schemes, they are AES, DES, and RC4. Sipdroid able to resist passive attack from tapping information (eavesdropping) during the communication session. And the result of QoS measurements is an increase delay of 0.01 ms and no significant change in the throughput and the packet loss, for throughput generated about 78 kbps, and for the average packet loss is 0.8%. However there is a noise that follows the communication on Sipdroid integrated with the encryption module due to the wave skew from the increase time during the encryption process.

关键词： Encryption Delays Throughput Packet loss Androids

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Shunt Active Power Filter With Open-End Winding Transformer and Series Connected Converters

Shunt Active Power Filter With Open-End Winding Transformer ...

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IEEE Energy Conversion Congress and Exposition

作者： G. A. de A. Carlos C. B. Jacobina E. C. dos Santos E. L. L. Fabricio N. Rocha Department of Control and Industrial Process Federal Institute of Alagoas (IFAL) Post-Graduate Program in Electrical Engineering - PPgEE - COPELE Department of Electrical Engineering Federal University of Campina Grande (UFCG) Department of Electrical and Computer Engineering Purdue School of Engineering and Technology (IUPI) Department of Electrical Engineering Federal University of Paraiba (UFPB)

ISBN: (纸本)9781479903375

This paper presents a shunt active power filter based on the concept of open-end winding (OEW) transformers. The proposed configuration is constituted of two converters with three legs each series connected throughout a three-phase OEW transformer. Model PWM strategy and control scheme are presented as well. The main advantage of the proposed system lies on the multi-level waveform generation, which allows reduction of either harmonic distortions or switching losses. This proposed topology is suitable for medium voltage (MV) distribution systems. Simulation and experimental results validate the theoretical study.

关键词： OEW multi-level MV active power filter Transformer power filters multilayers Converters winding (process) shunt Shunts (electrical) Multiple Virtual Storage Theoretical Study

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Low cost vision-based 3D localization system for indoor unmanned aerial vehicles

Low cost vision-based 3D localization system for indoor unma...

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IEEE International Conference on Robotics, Biomimetics, and Intelligent Computational Systems (ROBIONETICS)

作者： Stefio Yosse Andrean Endra Joelianto Augie Widyotriatmo Widyawardana Adiprawita Faculty of Industrial Technology Engineering Physics Study Program Bandung Indonesia Instrumentation & Control Research Group ITB Bandung Indonesia School of Electrical Engineering and Informatics Institute of Technology Bandung Bandung Indonesia

The paper presents a method to determine a position of objects in three dimentional coordinates. The proposed method uses a vision-based localization using two low cost cameras. The formulation is derived by using a pin-hole camera principal to project a location of a point in a 2D image into 3D space. This method can be used for indoor unmanned aerial vehicles localization to provide position information for control and navigation purposes.

关键词： Cameras

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Performance and cost comparison of extended length WDM-PON

Performance and cost comparison of extended length WDM-PON

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SBMO/IEEE MTT-S International Conference on Microwave and Optoelectronics (IMOC)

作者： Luiz Fernando Henning Alexandre de Almeida Prado Pohl Federal Institute of Santa Catarina IFSC-Jaraguá do Sul Brazil Graduate Program on Electrical Engineering-CPGEI Federal University of Technology Paraná Curitiba Brazil

ISBN: (纸本)9781479913961

Currently there is an effort by system operators to deploy cost effective Passive Optical Networks (PON). In this way, next generation PON is the subject of studies by researchers and system designers. Among them, Wavelength division multiplexing on Passive Optical Network (WDM-PON) are of particular interest once they can provide larger bandwidths. This work presents a comparison of WDM-PON configurations that employ a LED source, a directly modulated laser and a CW Laser with external modulation. Performance data and a cost comparison for the three cases are presented and discussed.

关键词： Passive optical networks Wavelength division multiplexing Optical network units Light emitting diodes Modulation Dispersion Lasers

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Controllability of a class of networked passive linear systems

Controllability of a class of networked passive linear syste...

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IEEE Annual Conference on Decision and Control

作者： Bart Besselink Henrik Sandberg Karl Henrik Johansson Jun-ichi Imura ACCESS Linnaeus Centre and the Automatic Control Laboratory Department of Electrical Engineering KTH Royal Institute of Technology Stockholm Sweden Department of Mechanical and Environmental Informatics Graduate School of Information Science and Engineering Tokyo Institute of Technology Tokyo Japan

ISBN: (纸本)9781467357159

In this paper, controllability properties of networks of diffusively coupled linear systems are considered through the controllability Gramian. For a class of passive linear systems, it is shown that the controllability Gramian can be decomposed into two parts. The first part is related to the dynamics of the individual systems whereas the second part is dependent only on the interconnection topology, allowing for a clear interpretation and efficient computation of controllability properties for a class of networked systems. Moreover, a relation between symmetries in the interconnection topology and controllability is given. The results are illustrated by an example.

关键词： controllability Linear system

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Erratum to: Methods for evaluating medical tests and biomarkers

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Diagnostic and prognostic research 2017年第1期1卷 11页

作者： Gowri Gopalakrishna Miranda Langendam Rob Scholten Patrick Bossuyt Mariska Leeflang Anna Noel-Storr James Thomas Iain Marshall Byron Wallace Penny Whiting Clare Davenport Gowri GopalaKrishna Isabel de Salis Sue Mallett Robert Wolff Richard Riley Marie Westwood Jos Kleinen Gary Collins Hans Reitsma Karel Moons Antonia Zapf Annika Hoyer Katharina Kramer Oliver Kuss J Ensor J J Deeks E C Martin R D Riley Gerta Rücker Susanne Steinhauser Martin Schumacher Joie Ensor Kym Snell Brian Willis Thomas Debray Jon Deeks Lavinia Ferrante di Ruffano Sian Taylor-Phillips Chris Hyde Stuart A Taylor Gauraang Batnagar Lavinia Ferrante Di Ruffano Farah Seedat Aileen Clarke Sarah Byron Frances Nixon Rebecca Albrow Thomas Walker Carla Deakin Zhivko Zhelev Harriet Hunt Yaling Yang Lucy Abel James Buchanan Thomas Fanshawe Bethany Shinkins Laure Wynants Jan Verbakel Sabine Van Huffel Dirk Timmerman Ben Van Calster Aeliko Zwinderman Jason Oke Jack O'Sullivan Rafael Perera Brian Nicholson Hannah L Bromley Tracy E Roberts Adele Francis Denniis Petrie G Bruce Mann Kinga Malottki Holly Smith Lucinda Billingham Alice Sitch Oke Gerke Mie Holm-Vilstrup Eivind Antonsen Segtnan Ulrich Halekoh Poul Flemming Høilund-Carlsen Bernard G Francq Jac Dinnes Julie Parkes Walter Gregory Jenny Hewison Doug Altman William Rosenberg Peter Selby Julien Asselineau Paul Perez Aïssatou Paye Emilie Bessede Cécile Proust-Lima Christiana Naaktgeboren Joris de Groot Anne Rutjes Johannes Reitsma Emmanuel Ogundimu Jonathan Cook Yannick Le Manach Yvonne Vergouwe Romin Pajouheshnia Rolf Groenwold Karen Moons Linda Peelen Daan Nieboer Bavo De Cock Micael J Pencina Ewout W Steyerberg Jennifer Cooper Nick Parsons Chris Stinton Steve Smith Andy Dickens Rachel Jordan Alexandra Enocson David Fitzmaurice Peymane Adab Charles Boachie Gaj Vidmar Karoline Freeman Martin Connock Rachel Court Carl Moons Jessica Harris Andrew Mumford Zoe Plummer Kurtis Lee Barnaby Reeves Chris Rogers Veerle Verheyden Gianni D Angelini Gavin J Murphy Jeremy Huddy Melody Ni Katherine Good Graham Cooke 1Department of Clinical Epidemiology Biostatistics & Bioinformatics Academic Medical Center University of Amsterdam Amsterdam The Netherlands. 2Cochrane Netherlands Julius Center for Health Sciences and Primary Care University Medical Center Utrecht Utrecht Netherlands. 234Department of Clinical Epidemiology Biostatistics & Bioinformatics Academic Medical Center University of Amsterdam Amsterdam The Netherlands. 49Department of Clinical Epidemiology Biostatistics & Bioinformatics Academic Medical Center University of Amsterdam Amsterdam The Netherlands. 3Cochrane Dementia and Cognitive Improvement Group University of Oxford Oxford UK. 4EPPI-Centre Department of Social Science University College London London UK. 5Division of Health and Social Care Research King's College London London UK. 6College of Computer and Information Science Northeastern University Boston USA. 13University Hospitals Bristol NHS Foundation Trust School of Social and Community Medicine Bristol UK. 275Institute of Applied Health Research University of Birmingham Birmingham UK. 9Department of Clinical Epidemiology Biostatistics & Bioinformatics Academic Medical Center University of Amsterdam Amsterdam The Netherlands. 10School of Social and Community Medicine University of Bristol Bristol UK. 179Institute of Applied Health Research University of Birmingham Birmingham UK. 12Kleijnen Systematic Reviews Ltd York UK. 25Research Institute for Primary Care and Health Sciences Keele University Keele UK. 188Centre for Statistics in Medicine Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK. 191Julius Center for Health Sciences and Primary Care University Medical Center Utrecht 3584 CG Utrecht Netherlands. 237Julius Center for Health Sciences and Primary Care University Medical Center Utrecht 3584 CG Utrecht Netherlands. 18Department of Medical Statistics University Medical Center Göttingen Göttingen Germany. 19Institute for B

[This corrects the article DOI: 10.1186/s41512-016-0001-y.].

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A Security Model for Distributed Collaborative Environments in the Healthcare

A Security Model for Distributed Collaborative Environments ...

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International Conference on Computational Science and its Applications (ICCSA)

作者： Rafael Viana Lopes Araújo Francisco J.S. e Silva Graduate Program in Electrical Engineering Federal University of Maranhão (UFMA) São Luís MA Brazil Department of Informatics of the Federal University of Maranhão (UFMA) São Luís MA Brazil

Distributed Collaborative Environments provide a common user interface that enables collaborative tasks of geographically dispersed users in a specific context. In such environments, many features can be provided, such as asynchronous and synchronous communication mechanisms, a repository for shared resources, and concurrent (synchronous) edition of content. However, it is clear that there is still a shortage concerning the security support in such environments. This becomes even more severe when the context in which these environments are inserted deals with sensitive data, such as patient data and their medical records. The present work proposes a security model for distributed collaborative environments focusing the support for medical researches.

关键词： Collaboration Context Distributed databases Educational institutions Authentication

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Analysis of Needle-Tissue Friction during Vibration-Assisted Needle Insertion

Analysis of Needle-Tissue Friction during Vibration-Assisted...

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IEEE/RSJ International Conference on Intelligent Robots and Systems

作者： Iman Khalaji Mostafa Hadavand Ali Asadian Rajni V. Patel Michael D. Naish Canadian Surgical Technologies and Advanced Robotics (CSTAR) Lawson Health Research Institute London Canada Biomedical Engineering Graduate Program Western University Department of Electrical and Computer Engineering Western University Department of Electrical and Computer Engineering and the Department of Surgery Western University Department of Mechanical and Materials Engineering and the Department of Electrical and Computer Engineering Western University

ISBN: (纸本)9781467363563

In this paper, a vibration-assisted needle insertion technique has been proposed in order to reduce needle-tissue friction. The LuGre friction model was employed as a basis for the current study and the model was extended and analyzed to include the impact of high-frequency vibration on translational friction. Experiments were conducted to evaluate the role of insertion speed as well as vibration frequency on frictional effects. In the experiments conducted, an 18 GA brachytherapy needle was vibrated and inserted into an ex-vivo soft tissue sample using a pair of amplified piezoelectric actuators. Analysis demonstrates that the translational friction can be reduced by introducing a vibratory low-amplitude motion onto a regular insertion profile, which is usually performed at a constant rate.

关键词： friction high frequency vibration LuGre friction Vibrational frequencies Insertion Mutation Pairing

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Nuclear cardiology image enhancement using wavelet transform analysis

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Physica Medica 2014年 30卷 e30-e30页

作者： A. Poulakis S. Angelakis G. Fountos G.S. Panagiotakis I. Asteriadis I. Valais Department of Biomedical Engineering Technological Educational Institute of Athens 12210 Athens Greece Biomedical Informatics and Technology Graduate Program School of Computer Science University of Crete Department of Medical Physics Medical School University of Patras 265 00 Patras Greece Department of Nuclear Medicine General Hospital of Kavala 65 500 Kavala Greece

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A new positioning and path following controller for unicycle mobile robots

A new positioning and path following controller for unicycle...

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International Conference on Advanced Robotics (ICAR)

作者： Cassius Zanetti Resende Ricardo Carelli Teodiano F. Bastos-Filho Mário Sarcinelli-Filho Department of Industrial Automation Federal Institute of Espírito Santo Brazil Institute of Automatics National University of San Juan Argentine Graduate Program on Electrical Engineering Federal University of Espírito Santo Vitória Brazil

This paper presents a new motion controller for unicycle mobile robots that is capable of performing positioning and path-following tasks. The proposed controller has the advantage of simultaneously performing the approximation of the robot to the proposed path by the shortest route and limiting its velocity. Such features are achieved by the continuous variation of the controller gains, whose values are determined through fuzzy rules.

关键词： Mobile robots Frequency modulation Closed loop systems Collision avoidance Kinematics Fuzzy sets

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