{"title":"Design of digital phase shift trigger of induction heating power supply","authors":"Ya-long Su, J. Cui, Gang Peng","doi":"10.1109/EMEIT.2011.6023784","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023784","url":null,"abstract":"Phase shift trigger circuit is important to rectifier circuit with three-phase fully-controlled. In this paper, the phase shift trigger is referred and improved in hardware and software algorithms. The system which has been improved is simple and reliable; it can produce a pulse with good symmetry and anti-jamming capability. It ensures to capture each commutation area and trigger SCR at time.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125710367","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}
{"title":"In-material measurement technique for brittle materials subjected to shock loading","authors":"Songlin Xu, Yonggui Liu, Hang Zheng, Daorong Wang","doi":"10.1109/EMEIT.2011.6023213","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023213","url":null,"abstract":"Two kinds of magnetic gauges, including electromagnetic particle velocity (EMV) gauge and a combined gauge composed of EMV gauge and electromagnetic (EM) stress gauge, are introduced to investigate the dynamic damage of brittle materials subjected to shock loading. The former is now used for the measurements of non-magnetic materials under pressure-shear impact loading. The latter one can be used in normal plate impact, and the experimental results with this gauge could be self-proofed. The preliminarily experimental results show that these techniques are satisfactory.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114346397","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}
{"title":"A study on the stress distribution of pressure vessel and saddle support","authors":"Haidong Ren, E. Peng","doi":"10.1109/EMEIT.2011.6022832","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6022832","url":null,"abstract":"This article uses finite-element analysis to know the stress distribution of the horizontal type pressure vessel and saddle support by setting up 1/4 pressure vessel model and single saddle support model. It elaborates the stress distribution of the horizontal type pressure vessel and different parts of the saddle support. Meanwhile, It studies the changing load and relative effects on stress from different geometric parameter.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116401644","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}
{"title":"Time-domain analysis and research on blasting vibration signals based on Fourier transform","authors":"Baoquan Geng","doi":"10.1109/EMEIT.2011.6022920","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6022920","url":null,"abstract":"The blasting earthquake waves characteristics is studied by the Fourier transform in this paper, the energy distribution of blasting vibration signals with short-time and non-stationary characteristics is analyzed by short-time Fourier transform. According to time-frequency properties of Fourier transform, the blasting vibration time signal is scanned with stratified reconstruction signal, the relative energy distribution of blasting vibration and time variation law of the vibration intensity with different frequencies are obtaapined by these signals. The measured results of blasting vibration signal show that the analysis of energy distribution characteristics based on Fourier transform can accurately gives the information of blasting vibration signal. The results provide much more feasible and efficient way of analyzing the structural security of blasting vibration.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116850400","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}
{"title":"Research on mutual fusion scheme of IPv4 and IPv6","authors":"Shunyan Wang, Jun Wang, Fangfang Cao, Haitao Zhou","doi":"10.1109/EMEIT.2011.6023058","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023058","url":null,"abstract":"Based on the problems of IPv4 network, advantages of IPv6 network and limitations of traditional transition mechanisms from IPv4 to IPv6, this research start with extend IPv4 protocol package header, and propose a method for unrestrained communication between IPv4 hosts and IPv6 hosts without changing IPv4 network infrastructure and protocol. Then, combine with the traditional tunneling mechanism to display the mutual fusion scheme of IPv4 and IPv6. Its purpose is to make the IPv6 network has a faster development and become more popular so that solve the problem of IPv4 address is not enough. Therefore it can enhance the process of transition from IPv4 network to IPv6 network.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123994076","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}
{"title":"Detection system of meter pointer based on computer vision","authors":"Yanwen Li, Hongwei Zhang, Jinfeng Gong, Hui Rong","doi":"10.1109/EMEIT.2011.6023241","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023241","url":null,"abstract":"Aimed at problem of Auto meter pointer detection precision, the paper gives a solving plan based on computer vision technology. According to the input parameters provided by Manufacturers, the system can output signal that all kinds of meters need, and detects meter pointers automatically, then outputs result. The system is already applied in detection of CAN BUS digital instrument designed by ourselves. The final test result indicates that the system runs stable, and the function performed is satisfactory.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125946730","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}
{"title":"The investigation on the selection of measuring distance of acoustical holography","authors":"Desen Yang, Xiaoxia Guo, Shengguo Shi, Jianan Ma","doi":"10.1109/EMEIT.2011.6023024","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023024","url":null,"abstract":"To investigate the selection of the underwater large-scale structures measuring distance in acoustical holography, first the sound field distribution of underwater large-scale structure is analyzed, and then for the sound pressure attenuation characteristics of three different regions in the sound field, the sound field reconstruction in a different location of measuring surface is selected. Simulation data analysis results show that: In the process of measuring surface move from Fresnel zone to distance, when the measuring surface is in the transition zone, the error curve of the sound pressure reconstruction declines rapidly. So to get certain sound field reconstruction accuracy and resolution for underwater large-scale structures, measuring surface should be chosen in the transition zone of sound field.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"112 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123328122","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}
{"title":"Dynamic simulaion of multibody system with planar clearance joint","authors":"Shoufeng Jin, Yuewen Su","doi":"10.1109/EMEIT.2011.6022846","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6022846","url":null,"abstract":"A tribological analysis scheme for multibody system with clearance joints is presented by integrating frictional contact model, wear calculation with multibody dynamics. Clearance joints are modeled as a continuous contact model with friction. Progressive wear process is simulated by a widely used a finite-element-based iterative scheme. Frictional effect and wear of multibody system can be predicted combining the effects of changing joint clearance and dynamic behaviors. It is shown that maximum slider acceleration increases with friction efficient and wear of the bushing occurs more distinctly in specific zones.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115059836","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}
{"title":"Background segmentation of corn seedling stage base on the greenness method","authors":"Yue Xu, Zenghui Wang, Dongyan Wang","doi":"10.1109/EMEIT.2011.6023492","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023492","url":null,"abstract":"Background segmentation is the key step in image processing. The greenness method can satisfy the request of background segmentation of corn crops. Aiming at the different distribution of corn seedling stage in the field, segmentation operator of the greenness method is based on the ratios of R, G and B pixels in the total pixels. By researching on clear and unclear image of distribution between background and vegetation, the segmentation edge is found. By simulation, the greenness method can successfully divide image into background and vegetation.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115543403","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}
{"title":"A dynamic design method based on system reverse load for CDMA EV-DO RevA Qos","authors":"Feng Zhan, Xiaotang Li","doi":"10.1109/EMEIT.2011.6023315","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023315","url":null,"abstract":"CDMA EV-DO Rev.A has greatly enhanced support for real-time business. This article provides a design target at optimizing CDMA EV-DO Rev.A QoS algorithm to ensure better network performance.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114316697","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}