检索结果-内蒙古大学图书馆

International Conference on System Science and engineering (ICSSE)

作者： Tsai-Sheng Kao Chiu-Hsiung Chen Sheng-Chih Chen Sheng-Yun Hou Yuan-Chang Chang Xsing-Bang Chou Department of Electronic Engineering Hwa-Hsia College of Technology and Commerce Taipei Taiwan Department of Computer Science and Information Engineering China University of Technology Hsinchu Taiwan Graduate Program of Digital Content and Technologies Chengchi University Taiwan

The nonlinear effects of partial erasure and transition shift, however, often limit the performance attained by the partial response maximum likelihood (PRML) detector because of model mismatch. Conventionally, the nonlinear effects are either ignored or approximated by linearization technique. In the article, a PRML detector for the PR4 model including the nonlinear effects has been developed to improve the detector performance. The new representation is more accurate and the corresponding PRML detector has better performance without increasing the realization complexity. computer simulation results show that the new representation outperforms the conventional ones due to the enhanced modeling capability. The method is also expected to be applied in the high order partial response channel.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Unrestrained facile measurement of narrow-band ECG and respiratory variation in infants with a capacitive sheet-type sensor

Transactions of Japanese Society for Medical and Biological ...

引用

Transactions of Japanese Society for Medical and Biological engineering 2009年第1期47卷 42-50页

作者： Yama, Yoshihiro Ueno, Akinori Master's Program in Electronic and Computer Engineering Tokyo Denki University Japan Department of Electrical and Electronic Engineering Tokyo Denki University Japan

We propose a new method for obtaining narrow-band electrocardiographic potential (ECG) and respiratory variation in infants through their underwear. This method is based on capacitive coupling involving the electrode, the underwear, and the skin. In order to detect ECG signal and respiratory variation individually, a differential separation filter is introduced. The filter divides an input signal into a high frequency component for narrow-band ECG detection and a low frequency component for respiratory variation detection. To evaluate the proposed method, a pilot measuring device was made and tested. As the results, we confirmed the following: (1) Respiratory variation signal obtained with our device was highly correlated (r = 0.995) with that measured simultaneously with a commercial pneumotachograph. (2) Our pilot device succeeded in measuring narrow-band ECGand respiratory variation respectively in 13 of 15 and 11 of 15 measurements of infant aging 53 to 187 days. (3) R-R interval extracted from the narrow-band ECG was 25 times more precise than that calculated from photoplethysmogram. (4) Heart rate variability extracted from the narrow-band ECG was 100 times more precise than that calculated from photoplethysmogram. These results reveal that the proposed method appears promising for application to bedding of infants and neonate as a non-invasive and awareness-free approach for ECG and respiratory variation monitoring during sleep.

关键词： Electrodes

来源：评论

学校读者我要写书评

暂无评论

The keyword-based and semantic-driven data matching approach for assisting structuralizing the textual clinical documents

The keyword-based and semantic-driven data matching approach...

引用

International Conference on BioMedical engineering and Informatics (BMEI)

作者： Chi-Huang Chen Xiao-Ou Ping Zi-Jun Wang Sheau-Ling Hsieh Li-Chin Chen Yi-Ju Tseng Ching-Wei Hsu Feipei Lai Department of Electrical Engineering National Taiwan University Taipei Taiwan Graduate Institute of Computer Science and Information Engineering National Taiwan University Taipei Taiwan Graduate Institute of Biomedical Electronic and Bioinformatics National Taiwan University Taipei Taiwan EECS International Graduate Program Institute IT Center National Chiao Tung University Hsinchu Taiwan

The clinical data stored in the health information system can be categorized as two types including structuralized data and non-structuralized ones. In the paper, a data extraction system is developed to assist data retrieval from the non-structuralized textual clinical documents such as radiology reports, pathology reports, etc. The system provides keyword-based and semantic-driven data matching methodology to extract the specific information from the textual clinical documents. The matching methodology provides the capabilities to recognize the selected keywords and the related semantics in the documents. Through the extraction verification interface, clinicians can extract and verify the matched information semi-automatically. The extracted data can be filled into predefined case-oriented templates. The structuralized data can be stored back into the clinical data warehouse for further analyzing. Moreover, the case-oriented templates can support collecting corresponding extracted data for various researches.

关键词： Data mining Semantics Pattern matching Tumors Radiology Pathology Cancer

来源：评论

学校读者我要写书评

暂无评论

Friction feedforward compensation and position feedforward in CNC machines

Friction feedforward compensation and position feedforward i...

引用

7th Annual International Conference on Electrical engineering/electronics, computer, Telecommunications and Information Technology, ECTI-CON 2010

作者： Suteeratanapirom, Wijin Rattanawaorahirankul, Rapeepong Laosapan, Chutima Sanposh, Peerayot Chayopitak, Nattapon Tungpimolrut, Kanokvate Kunieda, Hiroaki TAIST Tokyo Tech ICTES Program Department of Electrical Engineering Kasetsart University 50 Phahonyothin Rd. Ladyao Jatujak Bangkok 10903 Thailand Intelligent Mechatronics Automation Robotics and Control Laboratory Department of Electrical Engineering Kasetsart University 50 Phahonyothin Rd. Ladyao Jatujak Bangkok 10903 Thailand Industrial Control and Automation Laboratory National Electronics and Computer Technology Center 112 Thailand Science Park Phahonyothin Rd. Klong 1 Klong Luang Pathumthani 12120 Thailand Department of Electrical and Electronic Engineering Tokyo Institute of Technology S3-65 2-12-1 Ookayama Meguro-ku Tokyo 152-8550 Japan

ISBN: (纸本)9789746724913

This research proposes a method to eliminate friction effect and reduced tracking error on CNC milling machines. A CNC milling machine has many connected mechanical components which have friction effects such as ball screws and rails. To control servo motors which are used to drive X-Y table in CNC milling machine, the conventional PID controller is widely used. In this research, Panasonic motor driver is set to the torque control mode. To compensate the friction effects, the friction feedforward compensation method is proposed. Moreover, to reduce the position tracking error, position feedforward controller is used. The simulation and implementation of position control in one axis of PID with Friction Feedforward Compensation and Position Feedforward Controller (FFC-PFC) are presented.

关键词： Friction

来源：评论

学校读者我要写书评

暂无评论

A digitally programmable voltage-mode multifunction filter using CCDVCCs

A digitally programmable voltage-mode multifunction filter u...

引用

2009 9th International Symposium on Communications and Information Technology, ISCIT 2009

作者： Chanapromma, Chaiyan Jaikla, Winai Siripruchyanun, Montree Computer Engineering Program Faculty of Industrial Technology Uttaradit Rajabhat University Muang Uttaradit 53000 Thailand Electric and Electronic Program Faculty of Industrial Technology Suan Sunandha Rajabhat University Dusit Bangkok 10300 Thailand Department of Teacher Training in Electrical Engineering Faculty of Technical Education King Mongkut's University of Technology North Bangkok Bangkok 10800 Thailand

ISBN: (纸本)9781424445219

This article presents a voltage-mode multi-function filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, current controlled differential voltage current conveyors (CCDVCCs). The features of the circuit are that: the quality factor and pole frequency can be tuned independently via the input bias currents: the circuit description is very simple, consisting of merely 2 CCDVCCs, 1 resistor and 2 capacitors. Only one external resistor and without any component matching conditions, the proposed circuit is very appropriate to further develop into an integrated circuit. Additionally, each function response can be selected by suitably selecting input signals with digital method. The PSPICE simulation results are depicted. The given results agree well with the theoretical anticipation. ©2009 IEEE.

关键词： Resistors

来源：评论

学校读者我要写书评

暂无评论

Time series mining approach for noninvasive intracranial pressure assessment: An investigation of different regularization techniques

Time series mining approach for noninvasive intracranial pre...

引用

2009 WRI World Congress on computer Science and Information engineering, CSIE 2009

作者： Wu, Shaozhi Xu, Peng Asgari, Shadnaz Bergsneider, Marvin Hu, Xiao Department of Neurosurgery David Geffen School of Medicine University of California Los Angeles CA United States Biomedical Engineering Graduate Program Henry Samueli School of Engineering and Applied Science University of California Los Angeles CA United States School of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 China

ISBN: (纸本)9780769535074

A data mining framework has been proposed to estimate intracranial pressure (ICP) non-invasively in our previous work. In the corresponding approach, the feature vector extracted from arterial blood pressure (ABP) and flow velocity (FV) is translated to the estimated errors by the mapping function for each entry in the database. In this paper, three different mapping function solutions, linear least squares (LLS), truncated singular value decomposition (TSVD) and standard Tikhonov regularization (STR) are systemically tested to compare the possible effects of different solutions on the non-invasive ICP estimation. The conducted comparison demonstrated that the selection of mapping function solution actually influences the estimation. Among the tested three solutions for mapping function, TSVD and STR show better ICP estimation performance with smaller ICP errors than LLS. © 2008 IEEE.

关键词： Flow velocity

来源：评论

学校读者我要写书评

暂无评论

Performance of H.264 in Real Time Optimization

Performance of H.264 in Real Time Optimization

引用

International Conference on computer Technology and Development (ICCTD)

作者： Faizul Hadi Bin Mohamad Jamil Razak Mohd Ali Lee Terence Daim Jerome Khairul Anuar Mohamad Ahmad Razani Haron Computer Engineering Program School of Engineering and Information Technology Universiti Malaysia Sabah UMS Kota Kinabalu Sabah Malaysia Electrical and Electronic Engineering Program School of Engineering and Information Technology Universiti Malaysia Sabah UMS Kota Kinabalu Sabah Malaysia

MPEG-2, H.263 and MPEG-4 are some example of video codec series used around the world. Different type video codec bring a different compression and quality values. h.264 /mpeg-4 part 10 or AVC (advance video coding) is the latest video codec/coding standard developed by ITU-T Video Coding Expert Group (VCEG) and ISO/IEC Moving Picture Experts Group (MPEG). It produces more straightforward and simple video coding design, with enhanced compression performance, and a high quality video. Original raw video (uncompressed video) require large and huge storage and it is important to compress the video data so it can be useful storage and transmission purpose. Good codec design will bring a higher quality of the video and the higher compression ratio. The purpose of this study is to optimize the current H.264 encoder for a more satisfying video quality. The image's peak signal noise ratio (PSNR) result obtained from both original H.264 and optimized H.264 video coding, together with its sizes is used as a comparison for the performance.

关键词： Video compression Video coding Video codecs Transform coding MPEG 4 Standard IEC standards ISO standards Image coding PSNR Automatic voltage control

来源：评论

学校读者我要写书评

暂无评论

Time Series Mining Approach for Noninvasive Intracranial Pressure Assessment: An Investigation of Different Regularization Techniques

Time Series Mining Approach for Noninvasive Intracranial Pre...

引用

computer Science and Information engineering, CSIE, WRI World Congress on FLAGGED

作者： Shaozhi Wu Peng Xu Shadnaz Asgari Marvin Bergsneider Xiao Hu Biomedical Engineering Graduate Program Henry Samueli School of Engineering and Applied Science University of California Los Angeles USA Neural Systems and Dynamics Laboratory Department of Neurosurgery the David Geffen School of Medicine University of California Los Angeles USA School of Computer Science and Engineering University of Electronic Science and Technology Chengdu China

关键词： Cranial pressure Data mining Biomedical engineering Data engineering Spatial databases computer science Feature extraction Arterial blood pressure Biomedical measurements Laboratories

来源：评论

学校读者我要写书评

暂无评论

Comparison of Different Approaches to ICP Dominated Pulse Extraction

Comparison of Different Approaches to ICP Dominated Pulse Ex...

引用

International Conference on Bioinformatics and Biomedical engineering (ICBBE)

作者： Peng Xu Shaozhi Wu Shadnaz Asgari Magdalena Kasprowicz Marvin Bergsneider Xiao Hu Center of Neuroinformatics School of Life Science and Technology University of Electronic Science and Technology Chengdu China Neural Systems and Dynamics Laboratory Department of Neurosurgery the David Geffen School of Medicine University of California Los Angeles USA School of Computer Science and Engineering University of Electronic Science and Technology Chengdu China Biomedical Engineering Graduate Program Henry Samueli School of Engineering and Applied Science University of California Los Angeles USA University of California Los Angeles Los Angeles CA US

Changes of ICP waveform morphology are characterized with different patients' states like hypertension, hydrocephalus and traumatic brain injury etc. Morphological clustering and analysis of ICP pulse (MOCAIP) approach is recently developed to extract ICP morphology feature, in which hierarchical clustering is used to extract the dominated pulse. In this paper, we evaluate the feasibility of using principle component analysis (PCA) and independent component analysis (ICA) to extract dominated pulse. The comparative study among clustering, PCA and ICP based approaches shows that PCA approach may be an alternative of clustering approach to extract dominated pulse in a faster fashion when dataset is of large size.

关键词： Independent component analysis Morphology Principal component analysis Biomedical engineering Feature extraction Electrocardiography Tellurium Hypertension Data mining Laboratories

来源：评论

学校读者我要写书评

暂无评论

Beating the competition down with the stick of education: A winning strategy for a global world

Beating the competition down with the stick of education: A ...

引用

2008 ASEE Annual Conference and Exposition

作者： Khan, Saeed Kissick, Beverlee Kansas State University Salina United States Electronic and Computer Engineering Technology Program Kansas State University Salina United States

At the outset of this paper, we studied the global competition that makes it necessary to increase the number of well trained engineers and technologists. We then listed the kinds of global learning outcomes that are needed to enhance the education of this workforce, and enumerated ways to teach these skills to students without incurring excessive costs. In addition, we discussed different strategies to increase the overall numbers of globally competent engineers and technologists. It is our belief that more students will choose to study engineering when they are told that engineers with management and leadership skills are highly desirable. For example, students, who would otherwise become business majors due to an inherent need to manage and lead, can now visualize engineering or technology as alternative gateway to their career destinations. The number of technologists can also be enhanced by creating student-centered transfer opportunities of A.A.S. degree holders and Certificate holders. © American Society for engineering Education, 2008.

关键词： Students

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：