检索结果-内蒙古大学图书馆

2012 International Conference on Computer Science and Service System, CSSS 2012

作者： Lin, Haijun Hou, Zelong Yao, Fu Xuhui, Zhang School of Measurement-Control Technology and Communication Engineering Harbin University of Science and Technology Harbin China

ISBN: (纸本)9780769547190

Based on the analysis of the IEEE 1149.4 Std for a Mixed-Signal Test Bus, this paper analyzed the working and use principle of STA400 that supports the IEEE1149.4 Std in detail. Then this paper proposed constructive view on its use in design for testability on analog circuits, which has practical significance to the use of IEEE1149.4 Std. © 2012 IEEE.

关键词： Design for testability

来源：评论

学校读者我要写书评

暂无评论

Performance Enhancement of Nanogenerator by Piezoelectric Filler Microstructure Design Towards Electrical Transmission Power Line Monitoring

SSRN

引用

SSRN 2025年

作者： Lu, Haowei Hu, Zhenghua Wang, Xin Chen, Gaoru Zheng, Xiaogan Xia, Jintao Huang, Mingju Yang, Wenlong Liu, Junhui Hu, Benlin Henan Key Laboratory of High Efficiency Energy Conversion Science and Technology Henan International Joint Laboratory of New Energy Materials and Devices School of Physics and Electronics Henan University Kaifeng475004 China School of Information and Artificial Intelligence Anhui Agricultural University Hefei230036 China School of Intelligent Manufacturing Wenzhou Polytechnic Wenzhou325035 China State Grid Fuzhou Electric Power Supply Company Fuzhou350009 China School of Measurement and Communication Engineering Harbin University of Science and Technology Harbin150080 China CAS Key Laboratory of Magnetic Materials and Devices Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo315201 China

Flexible composites-based piezoelectric nanogenerator (PENG) with low cost, stable properties and sensitivity to mechanical deformation is highly suitable for constructing a new self-powered perception layer in distributed electrical transmission power lines, which has the potential to reduce labor maintenance costs and improve sensing recognition accuracy. However, the lower output performance of PENG makes it difficult to integrate with energy management circuit and signal recognition system. Herein, we propose a enhanced output performance of composites-based PENG by designing piezoelectric fillers, where BCZT@Ag nanoparticles grow on the surface of BCZT fibers to form a Bracnch heterostructure. The PENG prepared by this new filler exhibits significantly enhanced output of 96.4 V and 15.52 µA, which are about 3.2 and 6.5 times higher than those of PENG without specific design, benefiting from improved charge transport mechanism and induced-polarization. Moreover, a intelligent Power IoTs system through the synergistic integration of this high-performance PENG and learning-assisted data analytics has been constructed, which enables accurate self-powered real-time monitoring of abnormal vibration states in transmission power lines to avoid rupture accident. This work not only provides an effective strategy to enhance the performance of PENG but also offers a new solution for the safe operation in power grid. © 2025, The Authors. All rights reserved.

关键词： Piezoelectricity

来源：评论

学校读者我要写书评

暂无评论

Study on the technology of digital recognition in verification process of mechanical and electronic anemometer

International Journal of Control and Automation

引用

International Journal of control and Automation 2014年第4期7卷 337-344页

作者： Fan, Jianying Wang, An Gao, Yang Yu, Lei School of Measurement-Control and Communication Engineering Harbin University of Science and Technology 150080 Harbin China College of Information and Electronic Technology Jiamusi University 154007 Jiamusi China

In order to solve the key technical problem in the verification process of mechanical and electrical coal mine anemometer, the paper presents digital recognition approach base on the characters of the anemometer image. First of all, collect the mirror images of the anemometer from a plain mirror which in the wind tunnels. And then we process the mirror images with secondary mirroring, grayscaling, denoising and binarization. Followed the location of the digital area can be determined and the incline distortion of the image can be adjusted. The final step is segmenting the single character in the digital character region and identify the corresponding number base on the characteristics of anemometer, which using the LED digital tube to display numbers. The experiments show that this method can accurately identify the numbers on the anemometer and has high recognition rate. The recognition time is able to meet the requirement for the verification of anemometer. Thus the method has high practical value. © 2014 SERSC.

关键词： Coal mines

来源：评论

学校读者我要写书评

暂无评论

Multi-perspective digital image correlation method using a single color camera

引用

Science China(Technological Sciences) 2018年第1期61卷 61-67页

作者： WANG YongHong DAN XiZuo LI JunRui WU SiJin YANG LianXiang School of Instrument Science and Opto-electronics Engineering Hefei University of Technology Department of Mechanical Engineering School of Engineering and Computer Science Oakland University Department of Measurement-Control Technology and Instrumentation Beijing Information Science and Technology University

A novel 3 D digital image correlation(DIC) system based on a single three charge-couple device(3 CCD) color camera is proposed in this paper. Images from three different perspectives are captured by a 3 CCD camera using a reflective-based pseudo-vision system. These images are then separated by the different CCD channels, and the correlation algorithm for the multi-camera DIC system is adopted to evaluate the images. Compared to the conventional multi-camera DIC system, the proposed system is much more compact. In addition, the proposed system has no loss of spatial resolution, compares to the traditional single camera DIC system. The complex surface measurement ability and the measurement accuracy is significantly improved through the use of the multi-camera DIC algorithm. The principle of the proposed system is described in detail as well as the experimental setup. A series of validation tests are performed, and the results are verified with the commercial 3 D-DIC system.

关键词： digital image correlation 3D-DIC single camera multi-perspective

来源：评论

学校读者我要写书评

暂无评论

Classification System Based on Data Mining Technique for Flat-Colored Textiles

SSRN

引用

SSRN 2025年

作者： Zhou, Min Lin, Yukai Hu, Wei Dai, Chai Tang, Guangfa He, Fei School of Information and Intelligent Engineering Guangzhou xinhua University Dongguan China School of Intelligent Control Hunan Railway Professional Technology College Zhuzhou China College of Electrical and Electrical Engineering Hunan University Changsha China Dept. of Pingdingshan Branch of China Mobile Communication Group Henan co. LTD Henan Pingdingshan China Dept.of Physics Electrical and Intelligent Manufacturing Huaihua University Changsha China College of Computer Science and Software Engineering Shenzhen University Shenzhen China

Manual visual inspection for defect detection in manufacturing can lead to high false positive rates. This paper compares data mining techniques for the binary classification of defects in flat products in a relatively open scenario. The background provides context on research into data mining-based detection. The methodology is divided into five sections: data collection, selection, preprocessing and transformation, classification, and model evaluation. Each section details the techniques applied, tailored to the application context, with specifying examples. Experiments apply real-world data sets self-collected from production lines. Statistics like prediction accuracy are generated by established data mining evaluation algorithms. Results indicate the efficacy of data mining for automated defect detection over manual approaches. Finally, conclusions summarize findings and discuss the limitations of the current research and planned future work to address the drawbacks. Overall, the formalized methodology and supportive experimental results demonstrate both the viability and potential areas of improvement for data mining in manufacturing quality control. © 2025, The Authors. All rights reserved.

关键词： Data accuracy

来源：评论

学校读者我要写书评

暂无评论

Shape Embedding and Knowledge Mining Network for Generalized Few-Shot Remote Sensing Segmentation

引用

IEEE Geoscience and Remote Sensing Letters 2025年 22卷

作者： Qiu, Zifeng Liu, Hongyu Xiong, Hang Di, Chengliang Fang, Hao Cong, Runmin Beijing Jiaotong University Institute of Information Science Beijing100044 China The54th Research Institute of CETC Shijiazhuang050081 China China Communication System Co. Ltd. Hebei Branch Shijiazhuang050081 China Shandong University School of Control Science and Engineering Jinan250061 China Ministry of Education Key Laboratory of Machine Intelligence and System Control Jinan250061 China Beijing Key Laboratory of Advanced Information Science and Network Technology Beijing100044 China

In recent years, generalized few-shot segmentation (GFSS) has received widespread attention from scholars by virtue of its superiority in low-data regimes. Most of the existing research focuses on natural image processing, and few studies have been devoted to the practical but challenging topic of remote sensing image (RSI) understanding. In this paper, we propose a Shape Embedding and Knowledge Mining Network (SKNet) for generalized few-shot RSI segmentation. Specifically, the framework is divided into two key stages: (a) In the base class learning stage, shape representation embedding is introduced to enhance the network's ability to perceive remote sensing objects. Simultaneously, we introduce the self-reconstruction constraint to prevent new unseen classes from merging, thereby improving the representation uniqueness of these classes. (b) In the novel class learning stage, a base class knowledge mining mechanism is designed to update the prototypes of the novel class by using the prototype representation of the base class, so as to enhance the discrimination ability of the network. We validated our methods on the adapted version of OpenEarthMap and iSAID datasets. In comparison with existing GFSS methods, the proposed approach demonstrates an advancement. © 2004-2012 IEEE.

关键词： Semantic Segmentation

来源：评论

学校读者我要写书评

暂无评论

Robust Transverse and Axial Flow measurement Using Constrained Dynamic Time Warping and Cumulative Decorrelation of Intravascular Ultrasound Signals

引用

IEEE Transactions on Instrumentation and measurement 2025年 74卷

作者： Shi, Jiachen Ren, Shangjie Dong, Wenxue Zhao, Shiyong Liu, Bingchen Jiang, Jun Tan, Chao Dong, Feng Tianjin Horimed Technology Company Ltd. Tianjin300308 China Zhejiang University The Second Affiliated Hospital School of Medicine State Key Laboratory of Transvascular Implantation Devices Heart Regeneration and Repair Key Laboratory of Zhejiang Province Department of Cardiology Hangzhou310009 China Tianjin University Tianjin Key Laboratory of Process Measurement and Control School of Electrical and Information Engineering Tianjin300072 China Tianjin Renai College School of Information and Intelligent Engineering Tianjin301636 China

The accurate measurement of blood flow velocity is vital for diagnosing and treating various medical conditions. However, precisely measuring transverse and axial blood flow velocities in small, deeply embedded blood vessels remains a significant challenge. This article presents a robust approach that leverages cumulative signal decorrelation for intravascular ultrasound (IVUS) applications. Within the vessel, movement of blood cells induces a phase discrepancy in the signals acquired by microprobes, manifesting as a time lag between corresponding segments of a set of radio frequency (RF) signals. A triangular constrained dynamic time warping (DTW) model is proposed to calculate the time lag, coupled with an empirical formula relating cumulative decorrelation to RF echo signals. This integration enables the estimation of both axial and transverse blood flow velocities, overcoming the limitations of traditional decorrelation methods, such as sensitivity to signal-to-noise ratio (SNR) and cycle hopping, thereby enhancing the accuracy and stability of blood flow velocity measurements. The technique was validated using a 50-MHz IVUS system to measure flow velocities within a microchannel with a 3 mm inner diameter, demonstrating robustness independent of the probe angle. This method effectively measures various blood flow parameters, including transverse and axial velocities and velocity profiles, across a wide range up to 75.5 cm/s. Notably, the spatial resolution achieved for both transverse and axial velocities is up to 10μm, providing an opportunity for highly accurate wall shear rate estimation. © 1963-2012 IEEE.

关键词： Velocity measurement

来源：评论

学校读者我要写书评

暂无评论

Bit-Level Composite Signal Design for Simultaneous Ranging and communication

引用

China communications 2021年第6期18卷 214-227页

作者： Weigang Chen Yalong He Changcai Han Jinsheng Yang Zhan Xu School of Microelectronics Tianjin UniversityTianjin 300072China Key Laboratory of Modern Measurement and Control Technology Beijing 100192China School of Information and Communication Engineering Beijing Information Science and Technology UniversityBeijing 100192China

As the complexity of space exploration missions augments,how to enhance the overall performance of communication,ranging or other functions has become a challengeable *** the integration of communication and ranging,we present a bit-level composite signal for simultaneous ranging and *** this composite method,through a specially designed mapping scheme using low-weight codewords,the information sequence is converted to a sparse sequence which is then superimposed on the ranging *** ranging,the correlation characteristics of the ranging code component can be maintained to calculate the transmitter-receiver *** communications,the sparse sequence can be extracted without interference by eliminating the ranging code *** results show that the proposed composite signal can support communication and ranging simultaneously with limited sacrifice of ranging performance,and the performance loss of ranging can be controlled and minimized by lowering the density of information sequences using different sparsification encoding methods.

关键词： composite signal spectrum sharing lowweight codeword regenerative PN ranging code

来源：评论

学校读者我要写书评

暂无评论

New enhancement of infrared image based on human visual system

引用

Chinese Optics Letters 2009年第3期7卷 206-209页

作者：于天河李秋明戴景民 Department of Automation Measurement and Control Engineering Harbin Institute of Technology Computer Center Harbin University of Science and Technology School of Astronautics Harbin Institute of Technology

Infrared images are firstly analyzed using the multifractal theory so that the singularity of each pixel can be extracted from the images. The multifractal spectrum is then estimated, which can reflect overall characteristic of an infrared image. Thus the edge and texture of an infrared image can be accurately extracted based on the singularity of each pixel and the multifractal spectrum. Finally the edge pixels are classified and enhanced in accordance with the sensitivity of human visual system to the edge profile of an infrared image. The experimental results obtained by this approach are compared with those obtained by other methods. It is found that the proposed approach can be used to highlight the edge area of an infrared image to make an infrared image more suitable for observation by human eyes.

关键词： Imaging systems Infrared imaging Infrared spectroscopy Pixels

来源：评论

学校读者我要写书评

暂无评论

Characterization of Hollow-core Silicon Nanowires

Characterization of Hollow-core Silicon Nanowires

引用

2012 International Conference on measurement, Information and control, MIC 2012

作者： Wang, Yingli Lai, Houhu Wang, Ming Measurement and Control Technology and Communication Engineering Haerbin University of Science and Technology China

ISBN: (纸本)9781457716027

This project investigates the performance characteristics of Hollow-core Silicon Nanowires, specially the confinement in each layer of the slot waveguide. In order to undertake such analysis, an accurate and efficient full-vectorial Finite Element Method (FEM) is used to calculate the propagation constant and the modal field profiles of the optical waveguide. The variation of effective indices, effective areas, power density in slot region and the confinement factors of the slot waveguide are rigorous investigated. The modal magnetic and electric field profiles are also presented. © 2012 IEEE.

关键词： Nanowires

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：