检索结果-内蒙古大学图书馆

International Conference on Electrical Machines, ICEM

作者： Damir Žarko Stjepan Stipetić Department of Electrical Machines Drives and Automation Faculty of Electrical Engineering and Computing University of Zagreb Zagreb Croatia

This paper presents a general approach to the optimized design of a series of interior permanent magnet motors with the same lamination cross section. A concept of a referent and particular design has been introduced and analytical expressions which relate the principal machine parameters for the referent and particular machine have been derived. The referent design can be optimized according to a certain criterion which automatically yields the optimal design of the entire series. The particular designs are then obtained from the referent design by varying the stack length, the number of turns per coil and the number of parallel circuits. In order to demonstrate the correctness of the derived design principles the optimized design of a referent machine with IEC frame size 160 has been made by combining the finite-element method and Differential Evolution optimization algorithm from which five particular designs with power ratings ranging from 15 kW to 110 kW have been derived.

关键词： Torque Lamination Windings Optimization Couplings Coils Rotors

来源：评论

学校读者我要写书评

暂无评论

The effect of clicking by smiling on the accuracy of head-mounted gaze tracking 12

The effect of clicking by smiling on the accuracy of head-mo...

引用

7th Eye Tracking Research and Applications Symposium, ETRA 2012

作者： Rantanen, Ville Verho, Jarmo Lekkala, Jukka Tuisku, Outi Surakka, Veikko Vanhala, Toni Sensor Technology and Biomeasurements Department of Automation Science and Engineering Tampere University of Technology Finland Research Group for Emotions Sociality and Computing School of Information Sciences University of Tampere Tampere Finland VTT Technical Research Centre of Finland Tampere Finland

ISBN: (纸本)9781450312257

The effect of facial behaviour on gaze tracking accuracy was studied while using a prototype system that integrated head-mounted, video-based gaze tracking and a capacitive facial movement detection for respective pointing and selecting objects in a simple graphical user interface. Experiments were carried out to determine how voluntary smiling movements that were used to indicate clicks affect the accuracy of gaze tracking due to the combination of user eye movement behaviour and the operation of gaze tracking algorithms. The results showed no observable degradation of the gaze tracking accuracy when using voluntary smiling for object selections. © 2012 ACM.

关键词： Eye tracking

来源：评论

学校读者我要写书评

暂无评论

Biophotogrammetry Model of Respiratory Motion Analysis Applied to Children

Biophotogrammetry Model of Respiratory Motion Analysis Appli...

引用

34th Annual International Conference of the IEEE engineering-in-Medicine-and-Biology-Society (EMBS)

作者： Ripka, W. L. Ricieri, D. da V. Ulbricht, L. Neves, E. B. Stadnik, A. M. W. Romaneli, E. F. R. Electrical Engineering and Industrial Computing Program Federal University of Technology - Paraná Brazil Physical Education Department Federal University of Paraná Brazil Master Program in Biomedical Engineering Federal University of Technology - Paraná Brazil Federal University of Technology - Paraná. Brazil Physical Education Federal University of Technology - Paraná Brazil Control and Automation Engineering Federal University of Technology - Paraná Brazil

ISBN: (纸本)9781457717871

This study aimed to test a protocol of measurements based on Biophotogrammetry to Analysis of Respiratory Mechanics (BARM) in healthy children. Seventeen normal spirometric children (six male and 11 female) were tested. Their performed maneuvers of forced inspiratory vital capacity were recorded in the supine position. The images were acquired by a digital camera, laterally placed to the trunk. Surface markers allowed that the files, exported to CorelDraw (R) software, were processed by irregular trapezoids paths. Compartments were defined in the thoracic (TX), abdominal (AB) and the chest wall (CW). They were defined at the end of an inspiration and expiration, both maximum, controlled by a digital spirometer. The result showed that the measured areas at the inspiratory and expiratory periods were statistically different (p<0.05). It reflects the mobility of CW and compartments. In conclusion, the proposed method can identify the breathing pattern of the measured subject using images in two dimensions (2D).

关键词： respiratory mechanics chest wall respiratory movements photogrammetry children

来源：评论

学校读者我要写书评

暂无评论

Discrete flight path angle tracking control of hypersonic flight vehicles via multi-rate sampling

Discrete flight path angle tracking control of hypersonic fl...

引用

2012 UKACC International Conference on Control, CONTROL 2012

作者： Xu, Bin Wang, Danwei Yang, Chenguang Li, Jing Wang, Shixing School of Automation Northwestern Polytechnical University Xi'an China School of Electrical and Electronic Engineering Nanyang Technological University Singapore Singapore School of Computing and Mathematics Plymouth University United Kingdom Department of Mathematics Xidian University China Department of Computer Science Tsinghua University Beijing China

ISBN: (纸本)9781467315609

This paper presents the flight path angle tracking control of the longitudinal dynamics of a generic hypersonic flight vehicle(HFV). Due to the use of digital computers and microprocessors for controls applications, the discrete hypersonic flight control is investigated. The altitude command is transformed into the flight path angle information. The back-stepping scheme is applied for the attitude subsystem which includes flight path angle, pitch angle and pitch rate. The virtual control is designed with nominal feedback and Neural Network (NN) approximation. To use the information of throttle setting, the multi-rate sampling method is employed for the two subsystems where the velocity subsystem is considered as slow dynamics. Under the proposed controller, the semiglobal uniform ultimate boundedness (SGUUB) stability is guaranteed. The simulation is presented to show the effectiveness of the proposed control approach. © 2012 IEEE.

关键词： Digital computers

来源：评论

学校读者我要写书评

暂无评论

Fault detection in a wastewater treatment plant based on neural networks and PCA

Fault detection in a wastewater treatment plant based on neu...

引用

Mediterranean Conference on Control and automation (MED)

作者： M.J. Fuente D. Garcia-Alvarez G.I. Sainz-Palmero P. Vega Department of Systems Engineering and Control University of Valladolid Valladolid Spain Department of Computing and Automation ETSII University of Sakamanca Bejar Salamanca Spain

In this paper, a neural network PCA method that integrates neural networks (NN) and principal component analysis (PCA) is used to detect faults in a wastewater treatment plant. The neural networks are used to calculate a non-linear and dynamic model of the process in normal operating conditions. PCA is used to generate monitoring charts based on the residuals calculated as the difference between the process measurements and the output of the networks. It can evaluate the current performance of the process and detects the faults. This technique has been applied to the simulation of a benchmark of a biological wastewater treatment process, a highly non-linear process. The simulation results clearly show the advantages of using this NNPCA monitoring in comparison with classical PCA monitoring.

关键词： Principal component analysis Monitoring Wastewater treatment Modeling Artificial neural networks Fault detection

来源：评论

学校读者我要写书评

暂无评论

Output improvement of Sg. Piah run-off river hydro-electric station with a new computed river flow-based control system

引用

IOP Conference Series: Earth and Environmental Science 2013年第1期16卷

作者： Razali Jidin Bahari Othman Centre for Automation and Embedded Computing System (CAECS) College of Engineering Universiti Tenaga Nasional (UNITEN) Jalan IKRAM-UNITEN 43000 Kajang Malaysia Generation Research Department Tenaga Nasional Research Centre (TNBR) 43000 Kajang Selangor Malaysia

The lower Sg. Piah hydro-electric station is a river run-off hydro scheme with generators capable of generating 55MW of electricity. It is located 30km away from Sg. Siput, a small town in the state of Perak, Malaysia. The station has two turbines (Pelton) to harness energy from water that flow through a 7km tunnel from a small intake dam. The trait of a run-off river hydro station is small-reservoir that cannot store water for a long duration; therefore potential energy carried by the spillage will be wasted if the dam level is not appropriately regulated. To improve the station annual energy output, a new controller based on the computed river flow has been installed. The controller regulates the dam level with an algorithm based on the river flow derived indirectly from the intake-dam water level and other plant parameters. The controller has been able to maintain the dam at optimum water level and regulate the turbines to maximize the total generation output.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Combining SIFT and global features for web image classification

Combining SIFT and global features for web image classificat...

引用

13th Pacific-Rim Conference on Multimedia, PCM 2012

作者： Cheng, Qimin Wen, Yue Zha, Zheng-Jun Chen, Xihua Shao, Zhenfeng Department of Electronics and Information Engineering Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 China Department of Automation Tsinghua University Beijing 100086 China School of Computing National University of Singapore 117417 Singapore Singapore State Key Laboratory for Information Engineering in Surveying Mapping and Remote Sensing Wuhan University Wuhan 430079 China

ISBN: (纸本)9783642347771

Nowadays, web images are rapidly increasing with the development of internet technology. This situation leads to the difficulties on effective and efficient image retrieval from mass data under web environment. In this paper, we propose a web images classification method by integrating SIFT features of the images with global features. First, Locality Sensitive Hashing (LSH) is adopted for local feature extraction by embedding the SIFT feature vector. Then, other global features, such as color, texture or shape feature, are extracted. Support Vector Machine (SVM) is employed for image classification by using these two types of features respectively. The two classification results are integrated by decision-level fusion to get the final classification result. Experimental results on a web image dataset show that the proposed method is able to improve the performance of web images classification. © 2012 Springer-Verlag.

关键词： Support vector machines

来源：评论

学校读者我要写书评

暂无评论

Cellular neural networks for gold immunochromatographic strip image segmentation

引用

1st International Conference on Health Information Science, HIS 2012

作者： Zeng, Nianyin Wang, Zidong Li, Yurong Du, Min College of Electrical Engineering and Automation Fuzhou University Fuzhou 350002 China Department of Information Systems and Computing Brunel University Uxbridge Middlesex UB8 3PH United Kingdom Fujian Key Laboratory of Medical Instrumentation and Pharmaceutical Technology Fuzhou 350002 China

ISBN: (纸本)9783642293603

Gold immunochromatographic strip assay provides a rapid, simple, single-copy and on-site way to detect the presence or absence of the target analyte. Comparing to the traditional qualitative or semi-quantitative method, a completely quantitative interpretation of the strips can lead to more functional information than the traditional qualitative or semi-quantitative strip assay. This paper aims to develop a method for accurately segmenting the test line and control line of the gold immunochromatographic strip (GICS) image for quantitatively determining the trace concentrations in the specimen. The canny operator as well as the mathematical morphology method is used to detect and extract the GICS reading-window. Then, the test line and control line of the GICS reading-window are segmented by the cellular neural network (CNN) algorithm. It is shown that the CNN offers a robust method for accurately segmenting the test and control lines via adaptively setting the threshold value, and therefore serves as a novel image methodology for the interpretation of GICS. © 2012 Springer-Verlag.

关键词： Mathematical morphology

来源：评论

学校读者我要写书评

暂无评论

Reduced-Order Fault Estimation Observer Design for Discrete-Time Systems

Reduced-Order Fault Estimation Observer Design for Discrete-...

引用

World Congress on Intelligent Control and automation

作者： Ke Zhang Bin Jiang Alexey Shumsky Peng Shi College of Automation Engineering Nanjing University of Aeronautics and Astronautics Far Eastern Federal University Department of Computing and Mathematical Sciences University of Glamorgan

ISBN: (纸本)9781467313971

This paper addresses the fault estimation problem for discrete-time dynamic systems. First, using a specific system decomposition, we propose a new reduced-order fault estimation observer (RFEO) with multiconstrained idea. A detailed discussion of the RFEO is given. Then, with the help of the slack-variable technique, fault estimation performances are further enhanced to reduce the conservatism generated by the direct design method. Simulation results of a discrete-time aircraft application are presented to illustrate our contributions.

关键词： Fault diagnosis Fault estimation Multiconstrained design Slack variables

来源：评论

学校读者我要写书评

暂无评论

Laboratory education experiences in the development of advanced digital TV services

Laboratory education experiences in the development of advan...

引用

IEEE Education engineering (EDUCON)

作者： Papadakis Andreas Panaousis Marios- Georgios Alafodimos Costas Department of Electronics Engineering Educators School of Pedagogical and Technological Education (ASPETE) Athens Greece Faculty of Science Engineering and Computing Kingston University London UK Department of Automation TEI Piraeus Egaleo – Athens Greece

In this work we have composed an innovative environment for the development of interactive TV applications. This has been evaluated in the context of laboratory exercises by students. We present the environment as wel... 详细信息

关键词： Multiplexing Digital TV Multimedia communication Education Materials Streaming media

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：