Pub Date : 2010-12-06DOI: 10.1109/DBTA.2010.5659077
X. Qian
FDMA is the easiest multiplex access mode in satellite communication,and it has wide application. In this paper,we have studied the principle of FDMA technology and its application. We also have analyzed the relationship between satellite's power and bandwidth, power control technology, guard band technology and some methods which can reduce the affection of intermodulation.We have mainly studied SCPC in FDMA.
{"title":"SCPC & Principle of FDMA Which Used in Satellite Communication","authors":"X. Qian","doi":"10.1109/DBTA.2010.5659077","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659077","url":null,"abstract":"FDMA is the easiest multiplex access mode in satellite communication,and it has wide application. In this paper,we have studied the principle of FDMA technology and its application. We also have analyzed the relationship between satellite's power and bandwidth, power control technology, guard band technology and some methods which can reduce the affection of intermodulation.We have mainly studied SCPC in FDMA.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130855665","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 : 2010-12-06DOI: 10.1109/DBTA.2010.5659037
F. He, Huiyu Zhao, Qiang Wang
The prestressed dies is an important way to improve the using life of the dies. This paper mainly analyzes the linear speed control of the winding system based on fuzzy PI where the winding tension of the system is considered as a load disturbance. Based on the actual system, the mathematical model of the winding system is built in Matlab/Simulink. The fuzzy PI control method is applied to improve the transient and steady states of linear speed control in trip winding system. And the fuzzy controller adopted into the fuzzy PI controller has been designed in detail. In simulation, the control effects of the conventional PI controller and the fuzzy PI controller are compared under the same conditions. The simulated results have shown that fuzzy PI control has better control performance than the conventional PI control. The study of this paper has a good reference value for fuzzy PI control using in actual winding system.
{"title":"Constant Linear Speed Control of Motor Based on Fuzzy PI in Strip Winding System","authors":"F. He, Huiyu Zhao, Qiang Wang","doi":"10.1109/DBTA.2010.5659037","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659037","url":null,"abstract":"The prestressed dies is an important way to improve the using life of the dies. This paper mainly analyzes the linear speed control of the winding system based on fuzzy PI where the winding tension of the system is considered as a load disturbance. Based on the actual system, the mathematical model of the winding system is built in Matlab/Simulink. The fuzzy PI control method is applied to improve the transient and steady states of linear speed control in trip winding system. And the fuzzy controller adopted into the fuzzy PI controller has been designed in detail. In simulation, the control effects of the conventional PI controller and the fuzzy PI controller are compared under the same conditions. The simulated results have shown that fuzzy PI control has better control performance than the conventional PI control. The study of this paper has a good reference value for fuzzy PI control using in actual winding system.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127626720","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 : 2010-12-06DOI: 10.1109/DBTA.2010.5659035
Ah Han, Zhonghe Li, Dongseop Kwon, Youngbae Park
Although several algorithms for computing the reverse skyline queries have been proposed, they are developed only for point datasets and cannot handle reverse skyline queries over arbitrary spatial objects such as regions, polygons or lines. In this paper, we introduce a novel method for processing reverse skyline queries over arbitrary spatial objects. The proposed method also processes reverse skyline queries efficiently because it reduces the number of disk accesses by pruning unnecessary traverses of nodes. Since arbitrary spatial objects may have overlaps with each other differently from point dataset, the proposed method allows users to choose a precedence among overlapped objects, which is useful for various applications such as decision support systems and data mining systems. Extensive experiments under various settings are conducted to prove the superiority of the proposed method.
{"title":"An Efficient Method for Processing Reverse Skyline Queries over Arbitrary Spatial Objects","authors":"Ah Han, Zhonghe Li, Dongseop Kwon, Youngbae Park","doi":"10.1109/DBTA.2010.5659035","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659035","url":null,"abstract":"Although several algorithms for computing the reverse skyline queries have been proposed, they are developed only for point datasets and cannot handle reverse skyline queries over arbitrary spatial objects such as regions, polygons or lines. In this paper, we introduce a novel method for processing reverse skyline queries over arbitrary spatial objects. The proposed method also processes reverse skyline queries efficiently because it reduces the number of disk accesses by pruning unnecessary traverses of nodes. Since arbitrary spatial objects may have overlaps with each other differently from point dataset, the proposed method allows users to choose a precedence among overlapped objects, which is useful for various applications such as decision support systems and data mining systems. Extensive experiments under various settings are conducted to prove the superiority of the proposed method.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131698274","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 : 2010-12-06DOI: 10.1109/DBTA.2010.5659089
Suyin Dong, Min Huang, Y. Liu, Jingyang Wang, Xiaohong Wang
In order to propel project-driven Competitive Intelligence of teaching model better, study convenient for undergraduate students, promote study efficiency and enhance communication between teachers and students, we create a competitive intelligence consciousness an skill cultivating platform for undergraduate students based on SOA and MVC. In this paper, the platform function is described and system structure and the main implementation process are introduced in detail. Because of the platform using the combination of SOA and MVC framework, the platform development process realizes the reuse and sharing of software resources, loose coupling, reduces the difficulty of the development and maintenance cost, improves the efficiency of development, and the platform has some characters such as flexibility, extensibility, reusability, etc. This model not only can adapt to the platform construction, but also can be applied to the system construction in other areas.
{"title":"Design of Competitive Intelligence Consciousness and Skill Cultivating Platform for Undergraduate Students Based on SOA and MVC","authors":"Suyin Dong, Min Huang, Y. Liu, Jingyang Wang, Xiaohong Wang","doi":"10.1109/DBTA.2010.5659089","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659089","url":null,"abstract":"In order to propel project-driven Competitive Intelligence of teaching model better, study convenient for undergraduate students, promote study efficiency and enhance communication between teachers and students, we create a competitive intelligence consciousness an skill cultivating platform for undergraduate students based on SOA and MVC. In this paper, the platform function is described and system structure and the main implementation process are introduced in detail. Because of the platform using the combination of SOA and MVC framework, the platform development process realizes the reuse and sharing of software resources, loose coupling, reduces the difficulty of the development and maintenance cost, improves the efficiency of development, and the platform has some characters such as flexibility, extensibility, reusability, etc. This model not only can adapt to the platform construction, but also can be applied to the system construction in other areas.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"20 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131726669","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 : 2010-12-06DOI: 10.1109/DBTA.2010.5658963
Zhao-hong Wang
The quantitative association rules mining method is difficult for their values are too large. The usual means is dividing quantitative Data to discrete conception. The trapezium Cloud model combines ambiguity and randomness organically to fit the real world objectively, divide quantitative Data with trapezium Cloud model to create concepts, the concept cluster within one class, and separated with each other. So the quantitative Data can be transforms to Boolean data well, the Boolean data can be mined by the mature Boolean association rules mining method.
{"title":"Quantitative Association Rules Mining Method Based on Trapezium Cloud Model","authors":"Zhao-hong Wang","doi":"10.1109/DBTA.2010.5658963","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5658963","url":null,"abstract":"The quantitative association rules mining method is difficult for their values are too large. The usual means is dividing quantitative Data to discrete conception. The trapezium Cloud model combines ambiguity and randomness organically to fit the real world objectively, divide quantitative Data with trapezium Cloud model to create concepts, the concept cluster within one class, and separated with each other. So the quantitative Data can be transforms to Boolean data well, the Boolean data can be mined by the mature Boolean association rules mining method.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126774607","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 : 2010-12-06DOI: 10.1109/DBTA.2010.5659092
Zhiyuan Li, Li Jia, Xuechen Dong
Supply chain management has been commonly implemented in manufacturing management. It has become a new management model. As the source of manufacturing resource, the performance of supplier influences the whole chain directly. So supplier selection has become one of the core steps of supply chain management. This paper spreads out just based on the above background and then it researches on supplier selection based on AHP-FUZZY method, which not only improves the scientificalness and objectivity on supplier selection by quantitative computation, but also provides theoretical basis for further improvement on supplier selection.
{"title":"Research of Supplier Selection Based on Supply Chain Management","authors":"Zhiyuan Li, Li Jia, Xuechen Dong","doi":"10.1109/DBTA.2010.5659092","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659092","url":null,"abstract":"Supply chain management has been commonly implemented in manufacturing management. It has become a new management model. As the source of manufacturing resource, the performance of supplier influences the whole chain directly. So supplier selection has become one of the core steps of supply chain management. This paper spreads out just based on the above background and then it researches on supplier selection based on AHP-FUZZY method, which not only improves the scientificalness and objectivity on supplier selection by quantitative computation, but also provides theoretical basis for further improvement on supplier selection.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121386905","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 : 2010-12-06DOI: 10.1109/DBTA.2010.5659067
Weijun Yu, X. Qian
In this paper,we have analyzed that some kinds of signals affect the quality of satellite communication. These signals include cosmic noise, atmospheric noise, rainfall noise, ground noise, interfering noise and multipath fading.At last,we have concluded the quality factor expression (G/Tays) about earth communication station.This is significant to the analysis of satellite communication link.
{"title":"Some Factors Which Affect the Satellite Communication","authors":"Weijun Yu, X. Qian","doi":"10.1109/DBTA.2010.5659067","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659067","url":null,"abstract":"In this paper,we have analyzed that some kinds of signals affect the quality of satellite communication. These signals include cosmic noise, atmospheric noise, rainfall noise, ground noise, interfering noise and multipath fading.At last,we have concluded the quality factor expression (G/Tays) about earth communication station.This is significant to the analysis of satellite communication link.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122305035","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 : 2010-12-06DOI: 10.1109/DBTA.2010.5658937
Li-shuang Wei, Wei Song, Wenbin Hu, Zhengbing Hu
The usual network message transmission is based on store and forward mechanism.The network node does not process the network messages.Network coding theory has changed this routing form. Toimprove the network transmission capacity,it allows nodes to encode the transmitting messages.Some researches show that the network coding theory makes the node reach the maximal network traffic introduced by max flow min cut theory.Our paper uses network coding theory to optimize the performance of P2P network resource sharing.Lastly,we implement a P2P content sharing system based on network coding and design simulations to evaluate its performance. Analysing the experimental results,we find that network coding theory make P2P content sharing application efficient and scalable.
{"title":"Using Network Coding Make P2P Content Sharing Scalable","authors":"Li-shuang Wei, Wei Song, Wenbin Hu, Zhengbing Hu","doi":"10.1109/DBTA.2010.5658937","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5658937","url":null,"abstract":"The usual network message transmission is based on store and forward mechanism.The network node does not process the network messages.Network coding theory has changed this routing form. Toimprove the network transmission capacity,it allows nodes to encode the transmitting messages.Some researches show that the network coding theory makes the node reach the maximal network traffic introduced by max flow min cut theory.Our paper uses network coding theory to optimize the performance of P2P network resource sharing.Lastly,we implement a P2P content sharing system based on network coding and design simulations to evaluate its performance. Analysing the experimental results,we find that network coding theory make P2P content sharing application efficient and scalable.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125701955","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 : 2010-12-06DOI: 10.1109/DBTA.2010.5659043
Fuhua Yu, Hongke Xu, Limin Wang, Xiaojian Zhou
For the limited application and shortcoming of FCM (Fuzzy C-Means) clustering algorithm, an improved automatic FCM clustering algorithm is put forward. First, the fuzzy equivalent matrix is achieved by fuzzier the standard uniform data sets; then, the objective function of the improved automatic FCM clustering algorithm is optimized by the amendment of membership function and distance measuring function; The Lagrange multiplier optimization algorithm is calculated to update iteration of membership degree and clustering center. Finally, the automatic clustering is obtained by the degree of cohesion and separation. The traffic flow data of an extra long highway tunnel in Shaanxi is taken as an actual example to apply the improved automatic FCM clustering algorithm. The clustering result shows that the validity of clustering is improved using the improved automatic FCM algorithm.
{"title":"An Improved Automatic FCM Clustering Algorithm","authors":"Fuhua Yu, Hongke Xu, Limin Wang, Xiaojian Zhou","doi":"10.1109/DBTA.2010.5659043","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659043","url":null,"abstract":"For the limited application and shortcoming of FCM (Fuzzy C-Means) clustering algorithm, an improved automatic FCM clustering algorithm is put forward. First, the fuzzy equivalent matrix is achieved by fuzzier the standard uniform data sets; then, the objective function of the improved automatic FCM clustering algorithm is optimized by the amendment of membership function and distance measuring function; The Lagrange multiplier optimization algorithm is calculated to update iteration of membership degree and clustering center. Finally, the automatic clustering is obtained by the degree of cohesion and separation. The traffic flow data of an extra long highway tunnel in Shaanxi is taken as an actual example to apply the improved automatic FCM clustering algorithm. The clustering result shows that the validity of clustering is improved using the improved automatic FCM algorithm.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121073637","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 : 2010-12-06DOI: 10.1109/DBTA.2010.5659088
Jingqi Sun, Hongze Li, Dong Sun, Xiaomeng Zhai, Aijun Wang
The great efforts have been called for in improving the country's innovation capabilities to accelerate the transformation of economic growth pattern.The enterprise is the basic unit for it.So it is a necessary work to study how the enterprise gets a higher technovation.In this paper,the factors influencing the technovation become our targets. But there is a wide range of influential factors which are associated with each other in complex ways. In order to clarify these relationships and get a definite object in view,it's quite important to identify and establish a scientific index system.The interpretive structural modeling is an appropriate method.
{"title":"Application of Interpretive Structural Modeling in Enterprise Technovation","authors":"Jingqi Sun, Hongze Li, Dong Sun, Xiaomeng Zhai, Aijun Wang","doi":"10.1109/DBTA.2010.5659088","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659088","url":null,"abstract":"The great efforts have been called for in improving the country's innovation capabilities to accelerate the transformation of economic growth pattern.The enterprise is the basic unit for it.So it is a necessary work to study how the enterprise gets a higher technovation.In this paper,the factors influencing the technovation become our targets. But there is a wide range of influential factors which are associated with each other in complex ways. In order to clarify these relationships and get a definite object in view,it's quite important to identify and establish a scientific index system.The interpretive structural modeling is an appropriate method.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125218614","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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