检索结果-内蒙古大学图书馆

IEEE International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom)

作者： Igor Buzhinsky Cheng Pang Valeriy Vyatkin Computer Technologies Laboratory ITMO University Russia Department of Electrical Engineering and Automation Aalto University Finland Department of Computer Science Luleå University of Technology Sweden

ISBN: (纸本)9781467379533

The paper presents a framework which uses formal models for testing control software for industrial automation systems. The formalism called Net Condition/Event Systems (NCES) is applied to model the program under test, along with the system under control (plant) and the testing environment. The benefits of using the framework include the opportunities to test systems with time delays without the need to wait, to test parameterized sets of systems with a single execution of a test suite, and to check test suites for correctness. The use of the framework is illustrated on a simple system consisting of a lab-scale plant and a control application for it.

关键词： Testing Software IEC Standards automation Delays Computational modeling Formal languages

来源：评论

学校读者我要写书评

暂无评论

Identification of Gastric Cancer Related Genes from Deep Sequencing Data by Differential Nonlinear Gene Coexpression Network Analysis

Identification of Gastric Cancer Related Genes from Deep Seq...

引用

2015 Global Conference on Biological engineering and Biomedical(CBEB 2015)

作者： Jun Wu Xiaodong Zhao Zongli Lin Zhifeng Shao Department of Automation Shanghai Jiao Tong University School of Biomedical Engineering Shanghai Jiao Tong University Department of Electrical and Computer Engineering University of Virginia

Gastric cancer is one of the most common malignancies and ranks the second highest mortality worldwide. Although much progress has been made so far, the understanding of the tumorigenicity remains far from being completed. To describe the complex interactions among genes with nonlinear property preserved and investigate genes playing important roles in the gastric cancer formation, we utilized the distance correlation as the measurement of the relevance to construct the gene coexpression networks in both gastric cancer and normal tissue datasets respectively. The genes which are present in the module of normal-associated network but absent in the module of cancer-associated network are selected for further study and we call these genes stray genes. Our results show that these stray genes are enriched in up-regulation and the connectivity of all the genes appear the circumstance of loss in the gastric cancer network, especially to the stray genes. These results indicate us that the activation of these stray genes may play important roles in the gastric cancer. To examine our hypnosis,we use PANTHER for gene ontology(GO) analysis and the results show that these stray genes are enriched in some biological processes and pathways, including cell cycle, mitosis and chromosome segregation, DNA replication and p53 pathway. These results prove the effectiveness of our method for cancer-related genes identification and these cancer-related genes can be selected for further analysis.

关键词： gastric cancer,distance correlation,nonlinear co-expression network,stray genes

来源：评论

学校读者我要写书评

暂无评论

Automatizing the detection of rotor failures in induction motors operated via soft-starters 41

Automatizing the detection of rotor failures in induction mo...

引用

41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015

作者： Georgoulas, George Karvelis, Petros Stylios, Chrysostomos D. Tsoumas, Ioannis P. Antonino-Daviu, Jose Alfonso Corral-Hernandez, Jesus Climente-Alarcon, Vicente Nikolakopoulos, George Department of Computer Engineering TEI of Epirus Arta Greece Larges Drives Products RandD Department Siemens Industry Sector - Drive Technologies Nuremberg Germany Instituto de Ingeniería Energética Universitat Politècnica de València Valencia Spain Department of Electrical Engineering and Automation Aalto University P. O. Box 13000 AaltoFI-00076 Finland Computer Science Electrical and Space Engineering Dept. Lulea University of Technology Lulea Sweden

ISBN: (纸本)9781479917624

Implementation of unsupervised induction motor condition monitoring systems has drawn an increasing attention recently among motor drives manufacturers. In the case of soft-starters the possibility of incorporating fault detection features to their conventional functions provides an added value to those elements. Design and development of advanced algorithms that are able to automatically detect and alert about possible failures without requiring continuous human inspection is a challenging research goal. In this paper, an algorithm for the automatic detection of rotor damages in induction motors in the case of soft starting is proposed. The twofold approach relies, first, on the application of a time-frequency transform to the starting current signal and, second, on a pattern recognition stage based on the treatment of the time-frequency representation as a symbolic sequence. The innovation of this work is the implementation of the proposed approach for the automatic detection of rotor cage faults in soft-started motors. The experimental results prove the usefulness of the approach for the automatic detection of such faults and its potential for possible future implementation in soft-started machines. © 2015 IEEE.

关键词： Induction motors

来源：评论

学校读者我要写书评

暂无评论

Parameterization of Limbus Distance in Van Herick Method's Angle Closure Glaucoma Diagnosis

Parameterization of Limbus Distance in Van Herick Method's A...

引用

International Conference of Information and Communication Technology for Embedded Systems

作者： I. S. Ardakani W. Kongprawechnon T. Theeramunkong P. Bunnun T. Isshiki A. Manassakorn School of ICT Sirindhorn International Institute of Technology (SIIT) Thammasat University PathumThani Thailand Advanced Automation and Electronics Research Unit National Electronics and Computer Technology Center Pathum Thani Thailand Tokyo Institute of Technology Global Scientific Information and Computing Center ICT Support Division Authentication and Networking Group Dept. Communications and Computer Engineering Tokyo Japan Department of Ophthalmology Faculty of Medicine Chulalongkorn University and King Chulalongkorn Memorial Hospital Thai Red Cross Society Bangkok Thailand

ISBN: (纸本)9781509022502

As a non-invasive angle closure glaucoma diagnosis procedure, Van Herick's slit-lamp Limbal Anterior Chamber Depth Estimation (LACDE) technique is preferably the current standard screening method preliminarily performed at hospitals and eye clinics. However, accuracy of depth estimation is very much dependent on the slit projection distance from the limbus (LD). This study investigated the relation and designed a parametric model to reduce the inconsistencies between results and improving the Van Herick's method accuracy. Additionally, two different types of classifiers such as Support Vector Machine (SVM) and Decision Tree with addition of LD as a predictor were trained and tested for comparison with parametric model. In the end acquired results clearly showed the effectiveness of LD consideration in LACDE, which lead to improvement in the experimental results.

关键词： Limbal Anterior Chamber Depth Measurement Van Herick Method Support Vector Machine Classifier Decision Tree Classifier

来源：评论

学校读者我要写书评

暂无评论

Collaborative human-robot manipulation of highly deformable materials

Collaborative human-robot manipulation of highly deformable ...

引用

IEEE International Conference on Robotics and automation (ICRA)

作者： Daniel Kruse Richard J. Radke John T. Wen Center for Automation Technologies and Systems and the Department of Electrical Computer and Systems Engineering at Rensselaer Polytechnic Institute Troy NY

Robotic manipulation of highly deformable materials is inherently challenging due to the need to maintain tension and the high dimensionality of the state of the material. Past work in this area mostly focuses on generating a detailed model for the material and its interaction with the robot, then using the model to construct a motion plan. In this paper, we take a different approach by using only sensor feedback to dictate the robot motion. We consider the collaborative manipulation of a deformable sheet between a person and a dual-armed robot (Baxter by Rethink Robotics). The robot is capable of contact sensing via joint torque sensors and is equipped with a head-mounted RGBd sensor. The robot senses contact force to maintain tension of the sheet, and in turn comply to the human motion. This is akin to handling a tablecloth with a partner but with one's eyes closed. To improve the response, we use the RGBd sensor to detect folds, and command the robot to move in an orthogonal direction to smooth them out. This is like handling cloth by looking at the cloth itself. Both controllers are able to follow human motion without excessive crimps in the sheet, but as expected, the hybrid controller combining force and vision outperforms the force controller alone in terms of tension force transient. The ability to quickly detect the state of the deformable material also enables more complex manipulation strategies in the future.

关键词： Force Robot sensing systems End effectors Joints Fabrics Collaboration

来源：评论

学校读者我要写书评

暂无评论

System architecture optimization with runtime reconfiguration of simulation models

System architecture optimization with runtime reconfiguratio...

引用

Annual IEEE Systems Conference

作者： Alexander Wichmann Sven Jäger Tino Jungebloud Ralph Maschotta Armin Zimmermann Automation Department Technische Universität Ilmenau Ilmenau Systems and Software Engineering Group Computer Science Germany

The development of complex systems often leads to delays in integration and roll-out, massive cost overruns, and in many cases to sub-optimal solutions regarding system performance and robustness. In order to overcome these issues, model-based systems engineering methodologies can be employed. The application of simulation models in addition to system specifications increase the engineers' understanding of complex system behavior. The approach also allows the detection of incomplete or inconsistent functional requirements as well as other design failures.

关键词： Optimization Sensors Wireless sensor networks Ports (computers) Unified modeling language Computational modeling

来源：评论

学校读者我要写书评

暂无评论

Optimal design of digital low pass Finite Impulse Response filter using Particle Swarm Optimization and Bat Algorithm

Optimal design of digital low pass Finite Impulse Response f...

引用

International Conference on Informatics in Control, automation and Robotics (ICINCO)

作者： Alcemy G. V. Severino Leandro L. S. Linhares Fábio M. U. de Araújo Department of Computer Engineering and Automation Federal University of Rio Grande do Norte 59078-900 Natal Brazil

In this paper, the traditional metaheuristic Particle Swarm Optmization (PSO) and the Bat Algorithm (BA) are used to optimal design digital low pass (LP) Finite Impulse Response (FIR) filters. These filters have a wide range of applications because of their characteristics. They are easy to be designed, they have guaranteed bounded input-bounded output (BIBO) stability and can be designed to present linear phase at all frequencies. Traditional optimization methods based on gradient are susceptible to getting trapped on a local optima solution when they are applied to optimize multimodal problems, such as the FIR filter design. Here, to overcome this drawback, the aforementioned metaheuristics are adopted to obtain the coefficients of low pass FIR filters of order 20 and 24. The performance of BA and PSO algorithms are compared with the classical Parks and McClellan (PM) filter design algorithm, which is a deterministic procedure. For this comparison is considered the filters pass band and stop band ripples, transition width and statistical data. The simulation results demonstrate that the proposed filter design approach using BA algorithm outperforms PM and PSO.

关键词： Finite impulse response filters Algorithm design and analysis Optimization Particle swarm optimization Frequency response Simulation Chebyshev approximation

来源：评论

学校读者我要写书评

暂无评论

A navigation system based on vision and motion fusion information using two UFKs

A navigation system based on vision and motion fusion inform...

引用

International Conference on Information and automation (ICIA)

作者： Chunming Yan Jun Luo Huayan Pu Shaorong Xie Jason Gu School of Mechatronic Engineering and Automation Shanghai University Shanghai China Department of Electrical & Computer Engineering Dalhousie University Halifax NS Canada

This paper proposes an autonomous navigation system for mobile robots using two unscented Kalman filters (UKFs) and a slip detector to fuse the vision and motion information. The vision information is extracted from images captured by cameras, while the motion data are gathered by two wheel encoders, an accelerometer and a gyroscope. Firstly, the description of navigation algorithm, including the system overview, the image processing procedure and the coordinate transformation, are presented. Then kinematic models of two UKFs and data integration are introduced. Analyzing the results of experiments, the multi-sensor fusion system has more stability and accuracy in comparison with the single sensor system.

关键词： Robot sensing systems Navigation Mobile robots Robot kinematics Wheels Detectors

来源：评论

学校读者我要写书评

暂无评论

Information security threats and an easy-to-implement attack detection framework for wireless sensor network-based smart grid applications

引用

IOP Conference Series: Materials Science and engineering 2016年第1期108卷

作者： G Tuna H Örenbaş R Daş D Kogias M Baykara K K Department of Computer Programming Trakya University Edime Turkey Department of Software Engineering Firat University Elazig Turkey Department of Electronics Engineering Piraeus University of Applied Sciences Aigaleo Greece Department of Control and Automation Engineering Yildiz Technical University Istanbul Turkey

Wireless Sensor Networks (WSNs) when combined with various energy harvesting solutions managing to prolong the overall lifetime of the system and enhanced capabilities of the communication protocols used by modern sensor nodes are efficiently used in are efficiently used in Smart Grid (SG), an evolutionary system for the modernization of existing power grids. However, wireless communication technology brings various types of security threats. In this study, firstly the use of WSNs for SG applications is presented. Second, the security related issues and challenges as well as the security threats are presented. In addition, proposed security mechanisms for WSN-based SG applications are discussed. Finally, an easy- to-implement and simple attack detection framework to prevent attacks directed to sink and gateway nodes with web interfaces is proposed and its efficiency is proved using a case study.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Information security management - Part of the integrated management system

引用

Acta Universitatis Cibiniensis - Series E: Food Technology 2015年第1期66卷 102-107页

作者： Manea, Constantin Adrian Faculty of Electrical Engineering and Computer Science Department of Automation and Information Technology Transilvania University Braşov Romania

The international management standards allow their integrated approach, thereby combining aspects of particular importance to the activity of any organization, from the quality management systems or the environmental management of the information security systems or the business continuity management systems. Although there is no national or international regulation, nor a defined standard for the Integrated Management System, the need to implement an integrated system occurs within the organization, which feels the opportunity to integrate the management components into a cohesive system, in agreement with the purpose and mission publicly stated. The issues relating to information security in the organization, from the perspective of the management system, raise serious questions to any organization in the current context of electronic information, reason for which we consider not only appropriate but necessary to promote and implement an Integrated Management System Quality - Environment - Health and Operational Security - Information Security. © 2015 Manea Constantin Adrian.

关键词： Security of data

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：