The problem of finding the roots of a polynomial equation is important because many calculations in engineering and scientific computation can be summarized to it. An adaptive algorithm based on Sturm's theorem which could find the isolate intervals for all the real roots rapidly is used to locate all the roots. To find the numerical root, they will first be roughly approximated by dichotomy method. And then these roots are computed by Newton method using the initial values got in the first step. This method overcomes the shortcomings of dichotomy method and iterative method. The first step could find a good initial point quickly for Newton method, and Newton method converges faster than dichotomy method. Numerical example shows the effectiveness of this method.
{"title":"Numerical Methods for Solving High Order Polynomial Equations","authors":"Ling Wamg, Kaili Wang, Guanchen Zhou, Yuhuan Cui","doi":"10.1109/ICIC.2011.83","DOIUrl":"https://doi.org/10.1109/ICIC.2011.83","url":null,"abstract":"The problem of finding the roots of a polynomial equation is important because many calculations in engineering and scientific computation can be summarized to it. An adaptive algorithm based on Sturm's theorem which could find the isolate intervals for all the real roots rapidly is used to locate all the roots. To find the numerical root, they will first be roughly approximated by dichotomy method. And then these roots are computed by Newton method using the initial values got in the first step. This method overcomes the shortcomings of dichotomy method and iterative method. The first step could find a good initial point quickly for Newton method, and Newton method converges faster than dichotomy method. Numerical example shows the effectiveness of this method.","PeriodicalId":6397,"journal":{"name":"2011 Fourth International Conference on Information and Computing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75798960","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 this paper, a non-autonomous n-Species Lotka-Volterra cooperative system with feedback controls and smith growth for prey is investigated. By using Comparability Theorem, constructing Lyapunov function and Continuation Theorem, a set of easily verifiable sufficient conditions are obtained to guarantee the permanent and Positive periodic solution global attractivity of the system.
{"title":"Persistence and Periodicity of Nonautonomos n-Species Cooperative System with Feedback Controls and Smith Growth for Prey","authors":"Xu Sun, Rong Cheng","doi":"10.1109/ICIC.2011.94","DOIUrl":"https://doi.org/10.1109/ICIC.2011.94","url":null,"abstract":"In this paper, a non-autonomous n-Species Lotka-Volterra cooperative system with feedback controls and smith growth for prey is investigated. By using Comparability Theorem, constructing Lyapunov function and Continuation Theorem, a set of easily verifiable sufficient conditions are obtained to guarantee the permanent and Positive periodic solution global attractivity of the system.","PeriodicalId":6397,"journal":{"name":"2011 Fourth International Conference on Information and Computing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73854588","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 this paper, we present a new fast bias field method, which is based on adapted K-means and a smooth intensity fitting function. The experiments results show that our method can obtain good results.
{"title":"A New Fast Intensity Inhomogeneity Estimate Method","authors":"Shunfeng Wang","doi":"10.1109/ICIC.2011.24","DOIUrl":"https://doi.org/10.1109/ICIC.2011.24","url":null,"abstract":"In this paper, we present a new fast bias field method, which is based on adapted K-means and a smooth intensity fitting function. The experiments results show that our method can obtain good results.","PeriodicalId":6397,"journal":{"name":"2011 Fourth International Conference on Information and Computing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78758504","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}
Customer Relationship Management (CRM) system which puts client on the central location, plays an important role in automobile marketing field. It can help corporation understand customer's requirement better. improve the relation between customers and corporations, and enhance the customer's satisfaction degree, then advance competitive strength. The application of data dig technology in CRM would let CRM system into intelligent direction, and help automobile Marketing Corporation forecast operation developmental, and help corporation disentomb new customers and hold old customers, then make corporation at a more advantage competitive position.
{"title":"Research and Application of Data Dig Techniques in Automobile Marketing","authors":"Xingqiang Ba, Dan Ma","doi":"10.1109/ICIC.2011.97","DOIUrl":"https://doi.org/10.1109/ICIC.2011.97","url":null,"abstract":"Customer Relationship Management (CRM) system which puts client on the central location, plays an important role in automobile marketing field. It can help corporation understand customer's requirement better. improve the relation between customers and corporations, and enhance the customer's satisfaction degree, then advance competitive strength. The application of data dig technology in CRM would let CRM system into intelligent direction, and help automobile Marketing Corporation forecast operation developmental, and help corporation disentomb new customers and hold old customers, then make corporation at a more advantage competitive position.","PeriodicalId":6397,"journal":{"name":"2011 Fourth International Conference on Information and Computing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77623099","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}
The capability to provide network service even under a significant network system element disruption is the backbone for the survival of network technology in today's world, keeping this view in mind, the present paper highlights cryptosystem. A global initial key distribution method based on public key certificate chain shall be presented.
{"title":"A Survivability Strategy in Mobile Network by Using Key Distribution System","authors":"K. Gautam","doi":"10.1109/ICIC.2011.31","DOIUrl":"https://doi.org/10.1109/ICIC.2011.31","url":null,"abstract":"The capability to provide network service even under a significant network system element disruption is the backbone for the survival of network technology in today's world, keeping this view in mind, the present paper highlights cryptosystem. A global initial key distribution method based on public key certificate chain shall be presented.","PeriodicalId":6397,"journal":{"name":"2011 Fourth International Conference on Information and Computing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77819766","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}
Numerical simulations were performed to study the fluid characteristics in a novel static jet mixer with respect to the specific configuration. The results show that the profiles of three velocity components are symmetry to the cross-section z/H=0.5 and varies with the same trend of the different radial position. The magnitude of tangential velocity is one order greater than that of the axial velocity. The baffle length has an effect on the velocity components. The peak of the turbulent intensity is always at the jet position and the trend is the same as that of the turbulent kinetic energy.
{"title":"Numerical Study of the Turbulent Characteristic in a Novel Circulating Jet Mixer","authors":"Yanfang Yu, Wei Wang, Jian-hua Wu, Huibo Meng","doi":"10.1109/ICIC.2011.87","DOIUrl":"https://doi.org/10.1109/ICIC.2011.87","url":null,"abstract":"Numerical simulations were performed to study the fluid characteristics in a novel static jet mixer with respect to the specific configuration. The results show that the profiles of three velocity components are symmetry to the cross-section z/H=0.5 and varies with the same trend of the different radial position. The magnitude of tangential velocity is one order greater than that of the axial velocity. The baffle length has an effect on the velocity components. The peak of the turbulent intensity is always at the jet position and the trend is the same as that of the turbulent kinetic energy.","PeriodicalId":6397,"journal":{"name":"2011 Fourth International Conference on Information and Computing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84084478","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}
To resolve the difficulty of reading and identifying the CAD graphics file about automatic distinguishing and judging of CAD graphics file, this paper propses a CAD graphics identification method based on the graphics primitive. In this method, the CAD graphics is exploded to graphics primitive and read the graphics attribute. According to the comparison results of the identified graphics and standard graphics, the graphics primitives are differentiated with their graphics attributs. The graphics identification is finished by reading different sorts of graphics primitives.
{"title":"Graphic Identification System's Design and Research Based on Graphics Primitive","authors":"Hong-ying Zhao, Jing-qiu Tang","doi":"10.1109/ICIC.2011.8","DOIUrl":"https://doi.org/10.1109/ICIC.2011.8","url":null,"abstract":"To resolve the difficulty of reading and identifying the CAD graphics file about automatic distinguishing and judging of CAD graphics file, this paper propses a CAD graphics identification method based on the graphics primitive. In this method, the CAD graphics is exploded to graphics primitive and read the graphics attribute. According to the comparison results of the identified graphics and standard graphics, the graphics primitives are differentiated with their graphics attributs. The graphics identification is finished by reading different sorts of graphics primitives.","PeriodicalId":6397,"journal":{"name":"2011 Fourth International Conference on Information and Computing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82276878","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}
Foreground extraction is widely used in pattern recognition, movie and arts, etc. And the most important part of Foreground extraction is detecting the image edge. By detecting the image edge, we can build the models to extract foreground from the image through region, pixel or color. This paper begin with the analysis and evaluation of several typical algorithms of edge detection operator, and then the mixture Gaussian model which based on the foreground and background colors basic model is given to balance the insufficient of two models. Next we get matrix E(x) from the mixture Gaussian model, and then realize foreground extraction by maximum flow minimum cut algorithm cutting. Finally as the parameter's change, the extracted effect is analyzed.
{"title":"Numerical Analysis and Comparison of the Algorithms of Image Foreground Extraction","authors":"Guohua Wu, Jiangliang Li, Yong Jiang","doi":"10.1109/ICIC.2011.81","DOIUrl":"https://doi.org/10.1109/ICIC.2011.81","url":null,"abstract":"Foreground extraction is widely used in pattern recognition, movie and arts, etc. And the most important part of Foreground extraction is detecting the image edge. By detecting the image edge, we can build the models to extract foreground from the image through region, pixel or color. This paper begin with the analysis and evaluation of several typical algorithms of edge detection operator, and then the mixture Gaussian model which based on the foreground and background colors basic model is given to balance the insufficient of two models. Next we get matrix E(x) from the mixture Gaussian model, and then realize foreground extraction by maximum flow minimum cut algorithm cutting. Finally as the parameter's change, the extracted effect is analyzed.","PeriodicalId":6397,"journal":{"name":"2011 Fourth International Conference on Information and Computing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86073714","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}
The Dynamic mesh which offered by commercial computational fluid dynamics(CFD) software was adopted to realize transient aerodynamic characteristics numerical simulation during the crossing process. the Navier-Stokes (N-S) equations and standard turbulence model were applied to set up the model. The train transient aerodynamic characteristic during the crossing process has been research. The simulation results show that carrying on the transient state aerodynamics value simulation to the train is feasible, the flow field around train has a remarkable change in the process of crossing, the law of the piston wind and pressure change sharply like sinusoidal functions. It is of significant importance for further studying the structure of train, shorten its development and guiding significance for practical application.
{"title":"Transient Aerodynamic Numerical of Trains Crossing in Tunnel","authors":"Hai-tao Bao","doi":"10.1109/ICIC.2011.139","DOIUrl":"https://doi.org/10.1109/ICIC.2011.139","url":null,"abstract":"The Dynamic mesh which offered by commercial computational fluid dynamics(CFD) software was adopted to realize transient aerodynamic characteristics numerical simulation during the crossing process. the Navier-Stokes (N-S) equations and standard turbulence model were applied to set up the model. The train transient aerodynamic characteristic during the crossing process has been research. The simulation results show that carrying on the transient state aerodynamics value simulation to the train is feasible, the flow field around train has a remarkable change in the process of crossing, the law of the piston wind and pressure change sharply like sinusoidal functions. It is of significant importance for further studying the structure of train, shorten its development and guiding significance for practical application.","PeriodicalId":6397,"journal":{"name":"2011 Fourth International Conference on Information and Computing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91467757","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}
Some species are cannibalism and their lives can be divided into several stages. When this kind of species is predator, a Predator-prey system with ratio-dependent functional response, time delay, cannibalism and stage-structured can be formulated. For this system, the non-negativity of solution are discussed. The sufficient condition for existence of positive periodic solution is obtained by using coincidence degree theory. Some new results obtained.
{"title":"Positive Periodic Solution of a Predator-Prey System with Stage-Structured and Cannibalism for Predator","authors":"Hui Li","doi":"10.1109/ICIC.2011.95","DOIUrl":"https://doi.org/10.1109/ICIC.2011.95","url":null,"abstract":"Some species are cannibalism and their lives can be divided into several stages. When this kind of species is predator, a Predator-prey system with ratio-dependent functional response, time delay, cannibalism and stage-structured can be formulated. For this system, the non-negativity of solution are discussed. The sufficient condition for existence of positive periodic solution is obtained by using coincidence degree theory. Some new results obtained.","PeriodicalId":6397,"journal":{"name":"2011 Fourth International Conference on Information and Computing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83118894","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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