检索结果-内蒙古大学图书馆

17th International Conference on Machine Learning and Cybernetics, ICMLC 2018

作者： Li, Cheng-Cheng Li, Gong-Fa Sun, Ying Jiang, Guo-Zhang Kong, Jian-Yi Xu, Shuang Key Laboratory of Metallurgical Equipment and Control Technology Ministry of Education Wuhan University of Science and Technology Wuhan430083 China Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering Wuhan University of Science and Technology Wuhan430083 China Research Center of Biologic Manipulator and Intelligent Measurement and Control Wuhan University of Science and Technology Wuhan430081 China 3D Printing and Intelligent Manufacturing Engineering Institute Wuhan University of Science and Technology Wuhan430081 China

ISBN: (纸本)9781538652121

The traditional image compression technique uses the redundancy of the image data to compress the image without lossless coding by the corresponding coding techniques. Different compression coding techniques are redundant for different image data. Under the background of many new applications, the traditional image compression technology can no longer meet the requirement of further improving the quality of compressed images. In recent years, with the continuous development of artificial neural network technology, Some good properties of neural network, such as nonlinear, fault-Tolerant, self-organizing and adaptive, has been widely applied in image processing technology, which greatly simplifies the complexity of image processing. This paper mainly introduces the basic principles of BP neural network, studies the application of neural network in image compression, carries out simulation experiments through MATLAB, and analyzes the feasibility and advantages of BP neural network applied to image compression. © 2018 IEEE.

关键词： Image compression

来源：评论

学校读者我要写书评

暂无评论

Defocus Fuzzy Image Restoration 2

Defocus Fuzzy Image Restoration

引用

2018 2nd Annual International Conference on Cloud technology and communication engineering, CTCE 2018

作者： Li, Chengcheng Li, Gongfa Sun, Ying Jiang, Guozhang Jiang, Du Xu, Shuang Key Laboratory of Metallurgical Equipment and Control Technology Ministry of Education Wuhan University of Science and Technology Wuhan430081 China Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering Wuhan University of Science and Technology Wuhan430081 China Research Center of Biologic Manipulator and Intelligent Measurement and Control Wuhan University of Science and Technology Wuhan430081 China 3D Printing and Intelligent Manufacturing Engineering Institute Wuhan University of Science and Technology Wuhan430081 China

In daily life, if the focus is not on the object to be photographed, the image is blurred. This is the blurred image caused by the defocus. The defocus is a very common factor, and in most cases, the defocus amount is unpredictable, which brings great difficulty to defocus image restoration. In the existing defocus fuzzy image restoration method, the defocused point diffusion function can be estimated by determining the model parameters of the defocus blurred image, and then the reconstructed image can be obtained by inverse filtering or Wiener filtering. This paper introduces the causes of the defocus image, expounds the inverse filtering, Wiener filtering and blind restoration methods, and analyses the different principles of the three methods, and uses inverse filtering, Wiener filtering and blind restoration to deal with the defocus blurred images, and the expected results are obtained. © Published under licence by IOP Publishing Ltd.

关键词： Image reconstruction

来源：评论

学校读者我要写书评

暂无评论

control Strategy for Start-Up Process of Micro Gas Turbine Generation Systems

Control Strategy for Start-Up Process of Micro Gas Turbine G...

引用

International Conference on Electrical Machines and Systems (ICEMS)

作者： Yang Zhan Zhongqin Cai Zhiyong Chen Qilei Bao Chengli Zhang Mingji Liu School of Electrical and Electronic Engineering North China Electric Power University Beijing China School of Electrical Engineering and Automation Harbin Institute of Technology Harbin China Department of Measurement Control and Debugging ENN Energy Power Technology (Shanghai) Co. Ltd. Shanghai China State Grid of China Zhengzhou Power Supply Company Zhengzhou China

ISBN: (纸本)9781728133997

Micro gas turbine generation system (MGTGS) has the advantages of low emission, high comprehensive efficiency and fast response. It gradually becomes a distributed power source with the prospect of development in the fields of renewable energy resource and the emergency power supply in hospital. However, the MGTGS does not have the self-starting ability. The permanent magnet machine in the system can be used as the motor to drive the micro gas turbine to start up. In this paper, the simplified model of the micro gas turbine and the mathematical models of the permanent magnet synchronous machine (PMSM) and the converter at the grid-side are established. The grid-side converter is controlled by the strategy of grid voltage orientation based vector control, and the PMSM-side converter is controlled by the strategy of vector control based on rotor flux orientation. Modeling and simulation of the start-up control strategy of micro-gas turbine power generation system are implemented. The simulation and experimental results validate the effectiveness of the control strategy.

关键词： Turbines Voltage control Permanent magnet motors Mathematical model Torque Synchronous motors Machine vector control

来源：评论

学校读者我要写书评

暂无评论

Bearing Capacitance Estimation of Electric Vehicle Driving Motor

Bearing Capacitance Estimation of Electric Vehicle Driving M...

引用

2018 First International Conference on Environment Prevention and Pollution control technology (EPPCT 2018)

作者： Xianhui Zhu Nan Shi Yidan Li Ying Yang Xinrui Wang School of Electrical and Control Engineering Heilongjiang University of Science and Technology School of Measurement-Control Tech & Communications Engineering Harbin Institute of Technology The Engineering Training and Basic Experimental Center Heilongjiang University of Science and Technology

The bearing capacitance and bearing voltage are the main causes of the failure of the driving motor bearing in the electric vehicle powered by the PWM *** has an important influence on the driving safety of the electric vehicle,and is very important to calculate the bearing voltage and bearing current *** 6006 ball bearings in 25 KW permanent magnet motor as an example,this paper analyzes the load of each rolling element under the action of gravity,unilateral magnetic pull and centrifugal *** this paper discusses the effect of load distribution and speed on the contact area and oil film thickness between each rolling element and the *** the estimation results of bearing capacitance at different speeds are given *** could provide a reference basis for the life calculation and reliability analysis of the motor bearing in electric vehicle.

关键词： PWM Bearing Capacitance Estimation of Electric Vehicle Driving Motor

来源：评论

学校读者我要写书评

暂无评论

Initial ASEAN digital security and interoperability standard proposal

引用

AIP Conference Proceedings 2023年第1期2739卷

作者： Sangsuree Vasupongayya Gunawan Hutagalung Obrina Candra Chalee Vorakulpipat Doni Purnomo Parinda Wattanasri Eko Supriyanto Shukor Abd Razak Othman Ibrahim Anazida Zainal Sri Devi Ravana Hiep Cong Pham Tharith Sriv Daw Khin Myo Su Mora Hertanto Agus Winarno Prabaswari Raden Muhammad Taufik Yuniantoro Badrus Zaman Fatmawati Retna Apsari Yutika Amelia Effendi Norjihan Abdul Ghani Zarina Shukur Hamidah Ibrahim Nur Izura Udzir Marnel Peradilla Jude Michael Teves Nestor Michael Tiglao Cenon Alfonso Pg Emeroylariffion Abas Mueen Uddin Agustin Kusumayati Brian Sri Prahastuti Department of Computer Engineering Faculty of Engineering Prince of Songkla University Hatyai Songkhla 90110 THAILAND Directorate General of Post and Information Technology Ministry of Communication and Information Technology Jakarta INDONESIA Politeknik Siber dan Sandi Negara National Cyber & Crypto Agency (BSSN) Depok West Java INDONESIA Information Security Research Team at National Electronics and Computer Technology Center Bangkok THAILAND National Standardization Agency of Indonesia Jakarta INDONESIA Department of Disease Control Ministry of Public Health Mueang Nonthaburi Nonthaburi THAILAND School of Biomedical Engineering and Health Sciences Faculty of Engineering Universiti Teknologi Malaysia Johor Bahru Johor MALAYSIA IJN-UTM Cardiovascular Engineering Center Institute of Human Centered Engineering Universiti Teknologi Malaysia Johor Bahru Johor MALAYSIA School of Computing Faculty of Engineering Universiti Teknologi Malaysia Johor Bahru Johor MALAYSIA Faculty of Computer Science & Information Technology Universiti Malaya Kuala Lumpur MALAYSIA RMIT University Vietnam Ho Chi Minh City VIETNAM Royal University of Phnom Penh Phnom Penh CAMBODIA Yangon University of Economics Yangon MYANMAR Agency for the Assessment and Application of Technology (BPPT) Jakarta INDONESIA Faculty of Science and Technology Universitas Airlangga Surabaya East Java INDONESIA Faculty of Advanced Technology and Multidiscipline Universitas Airlangga Surabaya East Java INDONESIA Centre for Cyber Security Universiti Kebangsaan Malaysia Bangi Selangor MALAYSIA Faculty of Computer Science and Information Technology Universiti Putra Malaysia Serdang Selangor MALAYSIA Computer Technology Department College of Computer Studies De La Salle University Manila PHILIPPINES Software Technology Department College of Computer Studies De La Salle University Manila PHILIPPINES Electrical and Electronics Engineering Institute University of the Philippines Diliman Quezon City P

In this work, the result of the initial attempt to propose an Association of Southeast Asian Nations (ASEAN) digital security and interoperability standard to support the mobility among ASEAN countries is presented. Literature reviews on existing coronavirus disease 2019 (COVID-19) related digital technologies of six ASEAN member countries are conducted. Several concerns related to creating/implementing the ASEAN digital security and interoperability standard are discussed including the technology accessing concern, the data security and privacy concern, and the data interoperability and availability concern. The proposed solution toward creating an ASEAN digital security and interoperability standard is then presented. To evaluate the proposed solution, a survey has been conducted on representatives of nine ASEAN countries on four main issues including the security standards and requirements, the interoperability standard and requirements, the certifications, and the implementation challenges. According to the survey and the discussion, seven recommendations were proposed toward creating an ASEAN digital security and interoperability standard. First, each country collects and maintains the data of its own citizens and also provides a method to authenticate and access the data by authorized requests. Second, QR code standard or ASEAN QR code standard must be agreed upon so that it can be authenticated and verified by ASEAN countries. Third, health risk assessment must be agreed upon to be used. Forth, the security standard, the data, the data format and the exchange protocol must be agreed upon at the ASEAN policy level while adoption of international standards as an implementation guideline will ease of the process and neutralize different requirements from various countries. Fifth, any accountability of incidents must be agreed upon at the ASEAN policy level. Sixth, certification might be extended to certification of risk assessment for organizations, products or

关键词：

来源：评论

学校读者我要写书评

暂无评论

Physical violence detection with movement sensors 3rd

Physical violence detection with movement sensors

引用

3rd International Conference on Machine Learning and Intelligent communications, MLICOM 2018

作者： Ye, Liang Wang, Le Wang, Peng Ferdinando, Hany Seppänen, Tapio Alasaarela, Esko Communication Research Center Harbin Institute of Technology Harbin150080 China Optoelectronics and Measurement Techniques Laboratory Department of Electrical Engineering University of Oulu Oulu90570 Finland China Electronics Technology Group Corporation Nanjing210012 China Department of Electrical Engineering Petra Christian University Surabaya60236 Indonesia Department of Computer Science and Engineering University of Oulu Oulu90570 Finland

ISBN: (纸本)9783030005566

With the development of movement sensors, activity recognition becomes more and more popular. Compared with daily-life activity recognition, physical violence detection is more meaningful and valuable. This paper proposes a physical violence detecting method. Movement data of acceleration and gyro are gathered by role playing of physical violence and daily-life activities. Time domain features and frequency domain ones are extracted and filtered to discribe the differences between physical violence and daily-life activities. A specific BPNN trained with the L-M method works as the classifier. Altogether 9 kinds of activities are involved. For 9-class classification, the average recognition accuracy is 67.0%, whereas for 2-class classification, i.e. activities are classified as violence or daily-life activity, the average recognition accuracy reaches 83.7%. © ICST institute for Computer Sciences, Social Informatics and Telecommunications engineering 2018.

关键词： Frequency domain analysis

来源：评论

学校读者我要写书评

暂无评论

Input optics systems of the KAGRA detector during O3GK (vol 2023, 023F01, 2023)

引用

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS 2023年第5期2023卷

作者： Akutsu, T. Ando, M. Arai, K. Arai, Y. Araki, S. Araya, A. Aritomi, N. Asada, H. Aso, Y. Bae, S. Bae, Y. Baiotti, L. Bajpai, R. Barton, M. A. Cannon, K. Cao, Z. Capocasa, E. Chan, M. Chen, C. Chen, K. Chen, Y. Chiang, C-I Chu, H. Chu, Y-K Eguchi, S. Enomoto, Y. Flaminio, R. Fujii, Y. Fujikawa, Y. Fukunaga, M. Fukushima, M. Furuhata, T. Gao, D. Ge, G-G Ha, S. Hagiwara, A. Haino, S. Han, W-B Hasegawa, K. Hattori, K. Hayakawa, H. Hayama, K. Himemoto, Y. Hiranuma, Y. Hirata, N. Hirose, E. Hong, Z. Hsieh, B-H Huang, G-Z Huang, H-Y Huang, P. Huang, Y-C Huang, Y-J Hui, D. C. Y. Ide, S. Ikenoue, B. Imam, S. Inayoshi, K. Inoue, Y. Ioka, K. Ito, K. Itoh, Y. Izumi, K. Jeon, C. Jin, H-B Jung, K. Jung, P. Kaihotsu, K. Kajita, T. Kakizaki, M. Kamiizumi, M. Kanbara, S. Kanda, N. Kang, G. Kataoka, Y. Kawaguchi, K. Kawai, N. Kawasaki, T. Kim, C. Kim, J. Kim, J. C. Kim, Ws Kim, Y-M Kimura, N. Kita, N. Kitazawa, H. Kojima, Y. Kokeyama, K. Komori, K. Kong, A. K. H. Kotake, K. Kozakai, C. Kozu, R. Kumar, R. Kume, J. Kuo, C. Kuo, H-S Kuromiya, Y. Kuroyanagi, S. Kusayanagi, K. Kwak, K. Lee, H. K. Lee, H. W. Lee, R. Leonardi, M. Li, K. L. Lin, L. C-C Lin, C-Y Lin, F-K Lin, F-L Lin, H. L. Liu, G. C. Luo, L-W Majorana, E. Marchio, M. Michimura, Y. Mio, N. Miyakawa, O. Miyamoto, A. Miyazaki, Y. Miyo, K. Miyoki, S. Mori, Y. Morisaki, S. Moriwaki, Y. Nagano, K. Nagano, S. Nakamura, K. Nakano, H. Nakano, M. Nakashima, R. Nakayama, Y. Narikawa, T. Naticchioni, L. Negishi, R. Quynh, L. Nguyen Ni, W-T Nishizawa, A. Nozaki, S. Obuchi, Y. Ogaki, W. Oh, J. J. Oh, S. H. Ohashi, M. Ohishi, N. Ohkawa, M. Ohta, H. Okutani, Y. Okutomi, K. Oohara, K. Ooi, C. Oshino, S. Otabe, S. Pan, K-C Pang, H. Parisi, A. Park, J. Arellano, F. E. Pena Pinto, I. Sago, N. Saito, S. Saito, Y. Sakai, K. Sakai, Y. Sakuno, Y. Sato, S. Sato, T. Sawada, T. Sekiguchi, T. Sekiguchi, Y. Shao, L. Shibagaki, S. Shimizu, R. Shimoda, T. Shimode, K. Shinkai, H. Shishido, T. Shoda, A. Somiya, K. Son, E. J. Sotani, H. Sugimoto, R. Suresh, J. Suzuki, T. Suzuki, T. Tagoshi, H. Takahashi, H Gravitational Wave Science Project National Astronomical Observatory of Japan 2-21-1 Osawa Mitaka City Tokyo 181-8588 Japan Advanced Technology Center National Astronomical Observatory of Japan 2-21-1 Osawa Mitaka City Tokyo 181-8588 Japan Department of Physics The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan Research Center for the Early Universe The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan Institute for Cosmic Ray Research KAGRA Observatory The University of Tokyo 5-1-5 Kashiwa-no-Ha Kashiwa City Chiba 277-8582 Japan Accelerator Laboratory High Energy Accelerator Research Organization (KEK) 1-1 Oho Tsukuba City Ibaraki 305-0801 Japan Earthquake Research Institute The University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113-0032 Japan Department of Mathematics and Physics Graduate School of Science and Technology Hirosaki University 3 Bunkyo-cho Hirosaki Aomori 036-8561 Japan Kamioka Branch National Astronomical Observatory of Japan 238 Higashi-Mozumi Kamioka-cho Hida City Gifu 506-1205 Japan The Graduate University for Advanced Studies (SOKENDAI) 2-21-1 Osawa Mitaka City Tokyo 181-8588 Japan Korea Institute of Science and Technology Information 245 Daehak-ro Yuseong-gu Daejeon 34141 Republic of Korea National Institute for Mathematical Sciences 70 Yuseong-daero 1689 Beon-gil Yuseong-gu Daejeon 34047 Republic of Korea International College Osaka University 1-1 Machikaneyama-cho Toyonaka City Osaka 560-0043 Japan School of High Energy Accelerator Science The Graduate University for Advanced Studies (SOKENDAI) 1-1 Oho Tsukuba City Ibaraki 305-0801 Japan Department of Astronomy Beijing Normal University Xinjiekouwai Street 19 Haidian District Beijing 100875 China Department of Applied Physics Fukuoka University 8-19-1 Nanakuma Jonan Fukuoka City Fukuoka 814-0180 Japan Department of Physics Tamkang University No. 151 Yingzhuan Road Danshui Dist. New Taipei City 25137 Taiwan Department of Physics

KAGRA, the underground and cryogenic gravitational-wave detector, was operated for its solo observation from February 25 to March 10, 2020, and its first joint observation with the GEO 600 detector from April 7 to April 21, 2020 (O3GK). This study presents an overview of the input optics systems of the KAGRA detector, which consist of various optical systems, such as a laser source, its intensity and frequency stabilization systems, modulators, a Faraday isolator, mode-matching telescopes, and a high-power beam dump. These optics were successfully delivered to the KAGRA interferometer and operated stably during the observations. The laser frequency noise was observed to limit the detector sensitivity above a few kilohertz, whereas the laser intensity did not significantly limit the detector sensitivity.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A Method of Conflict Detection for Cooperative Defense Strategy in Power Industrial control System

A Method of Conflict Detection for Cooperative Defense Strat...

引用

International Conference on Advanced Cloud and Big Data (CBD)

作者： Hongqin Zhu Zi Wang Wei Li Dawei Su Jiawei Sun Muye Li Power Dispatching Control Center State Grid Nanjing Power Supply Company Nanjing P.R. China Nanjing NARI Information & Communication Technology Co. Ltd. NARI Group Co. Ltd./State Grid Electric Power Research Institute Co. Ltd. Nanjing P.R. China School of Computer Science and Engineering Southeast University Nanjing P.R. China Power Dispatching Control Center State Grid Jiangsu Electric Power Co. Ltd. Nanjing P.R. China

With the increasingly rampancy of network attacks and the steady progress of the national smart grid construction, the security protection of the power industrial control system is facing severe challenges. It is an effective means to improve the overall defense capability of the power industrial control system by formulating the security collaborative defense strategy and dynamically configuring the relevant equipment to make them have linkage response. For this purpose, a method of conflict detection for cooperative defense strategy in power industrial control system is proposed in this paper. Based on the formal description of cooperative defense strategy, the type of policy conflicts is analyzed according to the relationship between policy actions and system states. And the policy execution is simulated for detecting conflict by establishing the temporal relationship between policy actions. The experimental results show that this method can reduce the dependence on the system administrator, and can quickly and accurately find the conflicts in the collaborative defense strategy.

关键词： Couplings Industrial control Collaboration Big Data Smart grids Security

来源：评论

学校读者我要写书评

暂无评论

High-resolution noise source focusing localization based on combination array in dock environment

引用

Harbin Gongcheng Daxue Xuebao/Journal of Harbin engineering University 2018年第7期39卷 1191-1197页

作者： Yu, Shuhua Shi, Shengguo Shi, Jie Han, Chuang College of Underwater Acoustic Engineering Harbin Engineering University Harbin150001 China Southwest China Institute of Electronic Technology Chengdu610036 China Acoustic Science and Technology Laboratory Harbin Engineering University Harbin150001 China School of Measurement and Communication Harbin University of Science and Technology Harbin150080 China

The localization of a noise source is influenced by the multipath effect in a wharf test;hence, a high-resolution noise source localization method based on a combination array is proposed for measurement in a environment. This method applies an array form that provides a vector sensor in an even sound pressure array. Multipath information is utilized to generate a space-focusing wave beam matching actual wharf channel sound propagation properties. In combination with the passive time reversal technology, a sharper focusing peak and a more powerful background constraint ability are obtained. Meanwhile, the worst performance optimization is introduced to reduce the performance decline of the high-resolution focusing positioning method caused by various mismatch errors. The simulation and water-tank experiment results show that the method can realize a high-resolution focusing positioning of a noise source in a complex sound field environment of wharf. In addition, the robustness is excellent. © 2018, Editorial Department of Journal of HEU. All right reserved.

关键词： Focusing

来源：评论

学校读者我要写书评

暂无评论

Development of airborne distributed analog data acquisition system 13

Development of airborne distributed analog data acquisition ...

引用

2017 13th IEEE International Conference on Electronic measurement & Instruments (ICEMI)

作者： Yu Jinxiang Peng Yu Pan Dawei Wang Benkuan Department of Automatic Test and Control Harbin Institute of Technology Department of Measurement and Control technology and Instrument Harbin Engineering University

ISBN: (纸本)9781509050369;9781509050352

Flight testing is a necessary procession which gathers information and data from the airplane when flying. The airborne distributed analog data acquisition system is used to collect, store and display the analog data of the airplane in the flight test, which provide data support for further aircraft state estimating, performance test and fault diagnosis. The essence of it is a wild-distributed data acquisition system which gathers large numbers of analog parameters with high time synchronization accuracy Traditional airborne data acquisition system is based on PCM architecture which has advantages in system time synchronization stability, however, as planes become more sophisticated, a large number of parameters with a wild spatial distribution needs to be collected, the routing needs to be more concise as long as the time synchronization accuracy is highly demanded. As a result, the existing PCM architecture may not fully meets the requirements of the latest flight test. In this paper a hierarchical distributed airborne analog data acquisition system is designed and developed. In order to enhance the system expansibility and achieve high bandwidth, an easy-routing distributed architecture which combines Ethernet with the RS-485 bus was proposed. A RS-485 frame based time synchronization is applied to achieve high time synchronization accuracy. It is verifiable that the developed prototype can synchronously collect analog signals under high time synchronization accuracy, which fully meet the requirements of China self-developed large airplane and boost the development of China aviation industry.

关键词： airborne test data acquisition distributed system time synchronization

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：