Pub Date : 2007-05-23DOI: 10.1109/ICIEA.2007.4318430
Li Yi, Tong Qinye, Fan Ying-le
Texture, a representation of the spatial relationship of gray levels in an image, is an important characteristic for the automated or semi-automated interpretation of digital images. Many previous analyses have shown how to discriminate texture images, which include gray level co-occurrence matrix (GLCM), Laws' texture energy (LAWS) and Gabor multi-channel filtering (GABOR) etc. We have devised a new method based pulse coupled neural networks (PCNN) to perform texture image segmentation. We propose a segmentation scheme, using PCNN to extract texture features of image and classified by Fuzzy c-Means algorithm (FCM). For demonstration purpose, this paper compares the discrimination ability of two texture analysis methods: pulse coupled neural networks (PCNN) and Gabor multi-channel filtering (GABOR). Experimental results indicate that our method is superior to Gabor multi-channel filtering for a wide range of texture pairs.
{"title":"Texture Image Segmentation Using Pulse Coupled Neural Networks","authors":"Li Yi, Tong Qinye, Fan Ying-le","doi":"10.1109/ICIEA.2007.4318430","DOIUrl":"https://doi.org/10.1109/ICIEA.2007.4318430","url":null,"abstract":"Texture, a representation of the spatial relationship of gray levels in an image, is an important characteristic for the automated or semi-automated interpretation of digital images. Many previous analyses have shown how to discriminate texture images, which include gray level co-occurrence matrix (GLCM), Laws' texture energy (LAWS) and Gabor multi-channel filtering (GABOR) etc. We have devised a new method based pulse coupled neural networks (PCNN) to perform texture image segmentation. We propose a segmentation scheme, using PCNN to extract texture features of image and classified by Fuzzy c-Means algorithm (FCM). For demonstration purpose, this paper compares the discrimination ability of two texture analysis methods: pulse coupled neural networks (PCNN) and Gabor multi-channel filtering (GABOR). Experimental results indicate that our method is superior to Gabor multi-channel filtering for a wide range of texture pairs.","PeriodicalId":231682,"journal":{"name":"2007 2nd IEEE Conference on Industrial Electronics and Applications","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125118404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-05-23DOI: 10.1109/ICIEA.2007.4318380
Yun Tian, Yi Wang, Chongyang Hao, Shihao Chen
The cubic convolution interpolation is usually employed to 3D interpolation of medical images. In the paper, the interpolation principle of cubic convolution is analyzed systematically, and essential relationship among the different cubic convolution interpolation methods is formulated. Based on these, a 3D interpolation method of medical images that is based on the optimal parameter of sharp control (PSC) is presented. The approach makes full use of the local characteristic of medical volume data, and the local optimal PSC is obtained by the iterative computation, and then the volume data is interpolated using the cubic convolution under this parameter in one time. The experimental results show the method presented in the paper not only can improve the interpolation accuracy effectively, but also is robust.
{"title":"3-D Interpolation of Medical Images Based on the Optimal Cubic Convolution Kernel","authors":"Yun Tian, Yi Wang, Chongyang Hao, Shihao Chen","doi":"10.1109/ICIEA.2007.4318380","DOIUrl":"https://doi.org/10.1109/ICIEA.2007.4318380","url":null,"abstract":"The cubic convolution interpolation is usually employed to 3D interpolation of medical images. In the paper, the interpolation principle of cubic convolution is analyzed systematically, and essential relationship among the different cubic convolution interpolation methods is formulated. Based on these, a 3D interpolation method of medical images that is based on the optimal parameter of sharp control (PSC) is presented. The approach makes full use of the local characteristic of medical volume data, and the local optimal PSC is obtained by the iterative computation, and then the volume data is interpolated using the cubic convolution under this parameter in one time. The experimental results show the method presented in the paper not only can improve the interpolation accuracy effectively, but also is robust.","PeriodicalId":231682,"journal":{"name":"2007 2nd IEEE Conference on Industrial Electronics and Applications","volume":"210 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123453742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In order to effectively use the resource of wireless overlay network, this paper proposes a vertical borrowing and dynamic allocation scheme for bandwidth. This scheme adopts a SCTP (stream control transport protocol) based vertical borrowing method to reduce call blocking probability, and gives corresponding weighted algorithm for borrowing order to dynamically allocate bandwidth. Simulation results show this scheme can obviously reduce call blocking probability for both new call and handoff request in wireless overlay network.
{"title":"An Efficient Vertical Borrowing and Dynamic Resource Allocation Scheme for Wireless Overlay Network","authors":"Q. Guo, Yinglong Wang, Xianghua Xu, Chun-jie Li, Qian Chen","doi":"10.1109/ICIEA.2007.4318937","DOIUrl":"https://doi.org/10.1109/ICIEA.2007.4318937","url":null,"abstract":"In order to effectively use the resource of wireless overlay network, this paper proposes a vertical borrowing and dynamic allocation scheme for bandwidth. This scheme adopts a SCTP (stream control transport protocol) based vertical borrowing method to reduce call blocking probability, and gives corresponding weighted algorithm for borrowing order to dynamically allocate bandwidth. Simulation results show this scheme can obviously reduce call blocking probability for both new call and handoff request in wireless overlay network.","PeriodicalId":231682,"journal":{"name":"2007 2nd IEEE Conference on Industrial Electronics and Applications","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125339020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-05-23DOI: 10.1109/ICIEA.2007.4318624
Wang Feng, Cao Xi-bin, Chen Xueqin
The paper presents the initialization condition for chaser flying around target and optimal keeping control algorithm to satisfy the requirement of on-orbit-servicing in eccentric orbits. The necessary condition for chaser fly around is presented by detailed analyzing with the time variant linear relative motion formula and resolution. Then, the condition for target to locate at the center of fly around cycle and the method to determine the shape and aperture of cycle are also presented. Considering the effect of perturbation, the paper designs a discrete LQR optimal controller with constraint control vector to keep chaser in scheduled cycle. And three control error boxes, which enable the controller work in the reasonable error areas and avoid much fuel be wasted for the measure error are designed. Finally, example design and simulation are carried out. The results are analyzed, and it is shown that the design method and control algorithm are rational and valid.
{"title":"On-Orbit-Servicing Spacecraft Flyaround Orbit Design and LQR Keep Control in Eccentric Orbits","authors":"Wang Feng, Cao Xi-bin, Chen Xueqin","doi":"10.1109/ICIEA.2007.4318624","DOIUrl":"https://doi.org/10.1109/ICIEA.2007.4318624","url":null,"abstract":"The paper presents the initialization condition for chaser flying around target and optimal keeping control algorithm to satisfy the requirement of on-orbit-servicing in eccentric orbits. The necessary condition for chaser fly around is presented by detailed analyzing with the time variant linear relative motion formula and resolution. Then, the condition for target to locate at the center of fly around cycle and the method to determine the shape and aperture of cycle are also presented. Considering the effect of perturbation, the paper designs a discrete LQR optimal controller with constraint control vector to keep chaser in scheduled cycle. And three control error boxes, which enable the controller work in the reasonable error areas and avoid much fuel be wasted for the measure error are designed. Finally, example design and simulation are carried out. The results are analyzed, and it is shown that the design method and control algorithm are rational and valid.","PeriodicalId":231682,"journal":{"name":"2007 2nd IEEE Conference on Industrial Electronics and Applications","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116234835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-05-23DOI: 10.1109/ICIEA.2007.4318479
Yunzhou Zhang, Chengdong Wu, Peng Ji, Zixi Jia
Based on the core of RMI Aul200, a portable media player (PMP) is designed for multimedia entertainment. To acquire the best result, Linux2.6 kernel is used as the operating system. According to the layered architecture of system software, bottom driving program and multimedia application are designed for those specific equipments. The design and implementation of system hardware, software and file system are introduced in details. The equipment acquires excellent effect and has been put into production.
{"title":"Design of Portable Media Player Based on Linux And MIPS-Core Au1200 Processor","authors":"Yunzhou Zhang, Chengdong Wu, Peng Ji, Zixi Jia","doi":"10.1109/ICIEA.2007.4318479","DOIUrl":"https://doi.org/10.1109/ICIEA.2007.4318479","url":null,"abstract":"Based on the core of RMI Aul200, a portable media player (PMP) is designed for multimedia entertainment. To acquire the best result, Linux2.6 kernel is used as the operating system. According to the layered architecture of system software, bottom driving program and multimedia application are designed for those specific equipments. The design and implementation of system hardware, software and file system are introduced in details. The equipment acquires excellent effect and has been put into production.","PeriodicalId":231682,"journal":{"name":"2007 2nd IEEE Conference on Industrial Electronics and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122318146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-05-23DOI: 10.1109/ICIEA.2007.4318574
Liguo Chen, Tao Chen, Lining Sun, W. Rong
Die level fabrication of MEMS pressure sensors is limited by the manually manipulation process which require specially trained technicians. To reduce the production costs and simultaneously obtain high production quality, an automatic microassembly system for batch fabrication of MEMS sensors is developed. Firstly the automatic fabrication process is analyzed in detail, and an optimal system structure of dual-arm is presented. Secondly, the system is modularized into a set of autonomous modules which can adapt their structures and functions to various sizes of MEMS sensors, including positioning stages, three microscopy imaging systems, two flexible micromanipulators, a bonding center with three work cells, a fixture, two supply stations and auxiliary systems. Thirdly, major methodology issues in optomechatronic design of this system are introduced. An auto-focus method is introduced to get good image. The hybrid control of vision and force method is presented. An image based microvision control method is used to adjust the position of the dies and the glass base. And a coarse-to-fine positioning strategy under the microscope with the same magnification is employed to perform high-speed and high-precision visual positioning operations. A smart force sensor with one dimension is employed to sense and control the interactive force. To perform manipulations automatically, a control system, including a task planning level and a real-time execution level, is developed. Lastly, the productivity of the flexible microassembly system is validated by further experiments.
{"title":"Automatic Microassembly System for Die Level Fabrication of MEMS Pressure Sensor","authors":"Liguo Chen, Tao Chen, Lining Sun, W. Rong","doi":"10.1109/ICIEA.2007.4318574","DOIUrl":"https://doi.org/10.1109/ICIEA.2007.4318574","url":null,"abstract":"Die level fabrication of MEMS pressure sensors is limited by the manually manipulation process which require specially trained technicians. To reduce the production costs and simultaneously obtain high production quality, an automatic microassembly system for batch fabrication of MEMS sensors is developed. Firstly the automatic fabrication process is analyzed in detail, and an optimal system structure of dual-arm is presented. Secondly, the system is modularized into a set of autonomous modules which can adapt their structures and functions to various sizes of MEMS sensors, including positioning stages, three microscopy imaging systems, two flexible micromanipulators, a bonding center with three work cells, a fixture, two supply stations and auxiliary systems. Thirdly, major methodology issues in optomechatronic design of this system are introduced. An auto-focus method is introduced to get good image. The hybrid control of vision and force method is presented. An image based microvision control method is used to adjust the position of the dies and the glass base. And a coarse-to-fine positioning strategy under the microscope with the same magnification is employed to perform high-speed and high-precision visual positioning operations. A smart force sensor with one dimension is employed to sense and control the interactive force. To perform manipulations automatically, a control system, including a task planning level and a real-time execution level, is developed. Lastly, the productivity of the flexible microassembly system is validated by further experiments.","PeriodicalId":231682,"journal":{"name":"2007 2nd IEEE Conference on Industrial Electronics and Applications","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122564492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-05-23DOI: 10.1109/ICIEA.2007.4318421
Chien-Ming Wang, C. Su, Chien-Yeh Ho, Kuo-Lun Fang
A novel zero-voltage-switching pulse-width-modulation (ZVS-PWM) single-phase inverter using a voltage clamp ZVS boost dc link is proposed in this paper. The proposed voltage clamp ZVS boost dc link not only provides the switches in the section of conventional PWM buck inverter operate at ZVS, but it has a boost input voltage function and the switches in itself also operate at ZVS. Thus, except for the switch in the section of ZVS-PWM commutation cell, all power semiconductor devices in proposed inverter operate at ZVS turn on and turn off. The switch in the section of ZVS-PWM commutation cell operates at zero-current-switching (ZCS) turn-on and turn-off. Besides operating at constant frequency, the proposed inverter has no voltage stress and current stress on the main switch compared to the hard switching inverter counterpart. Auxiliary components rated at very small current are used. The principle of operation, theoretical analysis, and experimental results of the new ZVS-PWM single-phase inverter, rated 1kW and operated at 80 kHz, are provided in this paper to verify the performance.
{"title":"A Novel ZVS-PWM Single-Phase Inverter Using a Voltage Clamp ZVS Boost DC Link","authors":"Chien-Ming Wang, C. Su, Chien-Yeh Ho, Kuo-Lun Fang","doi":"10.1109/ICIEA.2007.4318421","DOIUrl":"https://doi.org/10.1109/ICIEA.2007.4318421","url":null,"abstract":"A novel zero-voltage-switching pulse-width-modulation (ZVS-PWM) single-phase inverter using a voltage clamp ZVS boost dc link is proposed in this paper. The proposed voltage clamp ZVS boost dc link not only provides the switches in the section of conventional PWM buck inverter operate at ZVS, but it has a boost input voltage function and the switches in itself also operate at ZVS. Thus, except for the switch in the section of ZVS-PWM commutation cell, all power semiconductor devices in proposed inverter operate at ZVS turn on and turn off. The switch in the section of ZVS-PWM commutation cell operates at zero-current-switching (ZCS) turn-on and turn-off. Besides operating at constant frequency, the proposed inverter has no voltage stress and current stress on the main switch compared to the hard switching inverter counterpart. Auxiliary components rated at very small current are used. The principle of operation, theoretical analysis, and experimental results of the new ZVS-PWM single-phase inverter, rated 1kW and operated at 80 kHz, are provided in this paper to verify the performance.","PeriodicalId":231682,"journal":{"name":"2007 2nd IEEE Conference on Industrial Electronics and Applications","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122671445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-05-23DOI: 10.1109/ICIEA.2007.4318754
Qingyi Wang, Hui Luo, Xing Den, S. Wan
In a voltage-fed PWM inverter, the relation between the reference voltage and actual output voltage is nonlinear due to the dead time effect and the voltage drop of power devices. The distortion of voltage invokes serious problems such as current waveform distortion and deterioration of the systems. More seriously, the current waveform is clamped to be a wide platform around the zero crossing point in the low-frequency region. In this paper, an improved method which reduces the distortion of voltage and current is presented. The method is based on SVPWM strategy and it can be implemented with software without any extra hardware. Simulation results are presented to demonstrate the validity of the proposed method.
{"title":"An Improved Method of Dead Time Compensation in the Zero-crossing Current Region with Low-Frequency Operation","authors":"Qingyi Wang, Hui Luo, Xing Den, S. Wan","doi":"10.1109/ICIEA.2007.4318754","DOIUrl":"https://doi.org/10.1109/ICIEA.2007.4318754","url":null,"abstract":"In a voltage-fed PWM inverter, the relation between the reference voltage and actual output voltage is nonlinear due to the dead time effect and the voltage drop of power devices. The distortion of voltage invokes serious problems such as current waveform distortion and deterioration of the systems. More seriously, the current waveform is clamped to be a wide platform around the zero crossing point in the low-frequency region. In this paper, an improved method which reduces the distortion of voltage and current is presented. The method is based on SVPWM strategy and it can be implemented with software without any extra hardware. Simulation results are presented to demonstrate the validity of the proposed method.","PeriodicalId":231682,"journal":{"name":"2007 2nd IEEE Conference on Industrial Electronics and Applications","volume":"333 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122845663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-05-23DOI: 10.1109/ICIEA.2007.4318588
Weifeng Zhong, Ruijie Li, Dejun Wang, Xue Li, Lihua Hu
Y-cut quartz resonators operating on low-frequency thickness C-mode is chosen as the temperature sensor because of its availability and good linear frequency versus temperature characteristic. In order to reduce the mounting effects and to decouple interfering modes of motion, the contour structures of the quartz wafers having a biconvex type and bat metallic electrodes with the sine ripple on the surfaces of the quartz wafer are applied. The resonance frequency characteristic is analyzed by the finite element method and the results are compared with the theoretical values whenever they are available. According to the experimental result, it is confirmed that the accuracy of measurement is better than 0.05 degree C over a wide temperature range from -60 degree C to 200 degree C.
{"title":"Development of Quartz Resonant Temperature Sensor","authors":"Weifeng Zhong, Ruijie Li, Dejun Wang, Xue Li, Lihua Hu","doi":"10.1109/ICIEA.2007.4318588","DOIUrl":"https://doi.org/10.1109/ICIEA.2007.4318588","url":null,"abstract":"Y-cut quartz resonators operating on low-frequency thickness C-mode is chosen as the temperature sensor because of its availability and good linear frequency versus temperature characteristic. In order to reduce the mounting effects and to decouple interfering modes of motion, the contour structures of the quartz wafers having a biconvex type and bat metallic electrodes with the sine ripple on the surfaces of the quartz wafer are applied. The resonance frequency characteristic is analyzed by the finite element method and the results are compared with the theoretical values whenever they are available. According to the experimental result, it is confirmed that the accuracy of measurement is better than 0.05 degree C over a wide temperature range from -60 degree C to 200 degree C.","PeriodicalId":231682,"journal":{"name":"2007 2nd IEEE Conference on Industrial Electronics and Applications","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114138839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-05-23DOI: 10.1109/ICIEA.2007.4318858
Xing Zhu, Xiaoming Yin
In this paper, the problem of robust Kalman filtering for uncertain discrete-time systems with Markovian jump parameters is solved. We give a novel design methodology of a stochastic quadratic filter which guarantees both the stability and boundedness of the estimation error dynamics. Our methods depends on the solution to two sets of coupled algebraic Riccati equations.
{"title":"Robust Kalman Filtering for Uncertain Discrete Markovian Jump Systems","authors":"Xing Zhu, Xiaoming Yin","doi":"10.1109/ICIEA.2007.4318858","DOIUrl":"https://doi.org/10.1109/ICIEA.2007.4318858","url":null,"abstract":"In this paper, the problem of robust Kalman filtering for uncertain discrete-time systems with Markovian jump parameters is solved. We give a novel design methodology of a stochastic quadratic filter which guarantees both the stability and boundedness of the estimation error dynamics. Our methods depends on the solution to two sets of coupled algebraic Riccati equations.","PeriodicalId":231682,"journal":{"name":"2007 2nd IEEE Conference on Industrial Electronics and Applications","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114506629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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