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2010 Second International Conference on Information Technology and Computer Science最新文献

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The Prediction Model of Diurnal Ionosphere TEC Based on TWSTFT 基于TWSTFT的电离层TEC日预报模型
2010 Second International Conference on Information Technology and Computer Science Pub Date : 2010-07-24 DOI: 10.1109/ITCS.2010.74
L. Huiru, Y. Zhiqiang
{"title":"The Prediction Model of Diurnal Ionosphere TEC Based on TWSTFT","authors":"L. Huiru, Y. Zhiqiang","doi":"10.1109/ITCS.2010.74","DOIUrl":"https://doi.org/10.1109/ITCS.2010.74","url":null,"abstract":"This paper estimated the local model to predict ionosphere TEC on a scale of day. Ionosphere TEC were obtained from the two-way satellite time and frequency transfer (TWSTFT), based on these data a sine function was fitted by iteration to get the prediction model of diurnal ionosphere TEC. This model simply and directly reflected the characteristic of the diurnal ionosphere behavior, and was consistent with the corresponding Ionosphere TEC obtained from TWSTFT.","PeriodicalId":340471,"journal":{"name":"2010 Second International Conference on Information Technology and Computer Science","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127064011","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}
引用次数: 1
Fluid Model Driven by an M/M/1 Queue with Exponential Vacation 具有指数休假的M/M/1队列驱动的流体模型
2010 Second International Conference on Information Technology and Computer Science Pub Date : 2010-07-24 DOI: 10.1109/ITCS.2010.138
Bing-wei Mao, Fu-Wei Wang, N. Tian
{"title":"Fluid Model Driven by an M/M/1 Queue with Exponential Vacation","authors":"Bing-wei Mao, Fu-Wei Wang, N. Tian","doi":"10.1109/ITCS.2010.138","DOIUrl":"https://doi.org/10.1109/ITCS.2010.138","url":null,"abstract":"This paper studies a fluid model driven by an M/M/1 queue with single exponential vacation. The Laplace transform of the steady-state distribution of the buffer content is expressed through the minimal positive solution to a crucial quadratic equation. Then the performance measure—mean buffer content which is independent of the vacation parameter, is obtained. Finally, using some numerical examples, we present the parameter effect on the mean buffer content.","PeriodicalId":340471,"journal":{"name":"2010 Second International Conference on Information Technology and Computer Science","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126996093","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}
引用次数: 10
Research on Visualization of Radar Beam Considering Virtual Environment Effect 考虑虚拟环境效应的雷达波束可视化研究
2010 Second International Conference on Information Technology and Computer Science Pub Date : 2010-07-24 DOI: 10.1109/ITCS.2010.92
Gao Ying, Liu Weiyuan, Lei Lei, Guo Shuxia
{"title":"Research on Visualization of Radar Beam Considering Virtual Environment Effect","authors":"Gao Ying, Liu Weiyuan, Lei Lei, Guo Shuxia","doi":"10.1109/ITCS.2010.92","DOIUrl":"https://doi.org/10.1109/ITCS.2010.92","url":null,"abstract":"In a virtual battlefield environment, the 3D visualization of the abstract information of radar beam under the environmental influence of the terrain and weather is the current development trend of the visualization of electromagnetic information. In this article, we have designed two methods by the OpenGL function to complete the drawing of the spatial beam pattern that is inserted into the virtual battlefield environment. And then we combined the stereoscopic concept with the research, and studied the information visualization methods of the radar beam that were under the influence of different environmental factors with the premise of that the radar beam parameters and the terrain elevation data and other relevant parameters were acquired. At last, the users could be able to get electromagnetic battlefield information they need vividly and intuitively, which could make them determine more promptly.","PeriodicalId":340471,"journal":{"name":"2010 Second International Conference on Information Technology and Computer Science","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133087988","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}
引用次数: 3
Notice of RetractionPPP Security Mechanism Analysis and Improvement 撤回通知ppp安全机制分析与改进
2010 Second International Conference on Information Technology and Computer Science Pub Date : 2010-07-24 DOI: 10.1109/ITCS.2010.106
Liao Hua-li, Shu Quan-Wei, Ling Lu
{"title":"Notice of RetractionPPP Security Mechanism Analysis and Improvement","authors":"Liao Hua-li, Shu Quan-Wei, Ling Lu","doi":"10.1109/ITCS.2010.106","DOIUrl":"https://doi.org/10.1109/ITCS.2010.106","url":null,"abstract":"This article introduced the principle of PPP, then carried the detailed analysis to the protocol's security mechanism, with the concrete analysis of the traditional PAP and CHAP existing in the PPP, the PPP network expose some shortage of security which is easily cracked, on this basis, finally, reached the improved security algorithm, which can enhance the security of PPP network obviously.","PeriodicalId":340471,"journal":{"name":"2010 Second International Conference on Information Technology and Computer Science","volume":"234 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123252360","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}
引用次数: 0
An Approach to Support Portlet Semantic Interoperation by Using Ontology Based on JSR268 基于JSR268的本体支持Portlet语义互操作方法
2010 Second International Conference on Information Technology and Computer Science Pub Date : 2010-07-24 DOI: 10.1109/ITCS.2010.38
Zhou Qingyun, Li Shixian
{"title":"An Approach to Support Portlet Semantic Interoperation by Using Ontology Based on JSR268","authors":"Zhou Qingyun, Li Shixian","doi":"10.1109/ITCS.2010.38","DOIUrl":"https://doi.org/10.1109/ITCS.2010.38","url":null,"abstract":"Web portals are integration of enterprise applications and services. The further integration of applications in portal context is actually the problem of portlet interoperation. However, there is not yet a definitive answer to portlet interoperation. This paper focuses on using ontology to support portlet semantic interoperability based on new features of JSR268. The proposed approach maps the portlets to concepts in ontology, and then constructs semantic data associations between such concepts, and finally achieves portlet interoperation based on the data associations. Experimental results show that this proposed approach can achieve application integration in portal without modifications to the applications.","PeriodicalId":340471,"journal":{"name":"2010 Second International Conference on Information Technology and Computer Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128922838","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}
引用次数: 3
Design and Implementation of Automatic Generation of Test Cases Based on Model Driven Architecture 基于模型驱动架构的测试用例自动生成的设计与实现
2010 Second International Conference on Information Technology and Computer Science Pub Date : 2010-07-24 DOI: 10.1109/ITCS.2010.90
Yang Liu, Yafen Li, Pu Wang
{"title":"Design and Implementation of Automatic Generation of Test Cases Based on Model Driven Architecture","authors":"Yang Liu, Yafen Li, Pu Wang","doi":"10.1109/ITCS.2010.90","DOIUrl":"https://doi.org/10.1109/ITCS.2010.90","url":null,"abstract":"Methodology of automatic generation of test cases based on Model Driven Architecture is proposed, and its design and implementation have be done. The process of generating test cases is that a platform-independent model is converted into a platform-independent test model through level conversion, and the platform-independent test model is converted into the corresponding test cases through vertical conversion. The basic structures of the system model and the test model are designed using Web-application system for the study. The conversion rules from the system model to the test model are designed using the model to model conversion method. The conversion rules from the test model to the test cases are designed using the model to code conversion method. Ultimately, the relevant test cases are generated.","PeriodicalId":340471,"journal":{"name":"2010 Second International Conference on Information Technology and Computer Science","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128928332","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}
引用次数: 15
Test CSRC's Ability to Select Firms for IPO and Public Offering 检验证监会选择IPO和公开发行公司的能力
2010 Second International Conference on Information Technology and Computer Science Pub Date : 2010-07-24 DOI: 10.1109/ITCS.2010.98
L. Guoping
{"title":"Test CSRC's Ability to Select Firms for IPO and Public Offering","authors":"L. Guoping","doi":"10.1109/ITCS.2010.98","DOIUrl":"https://doi.org/10.1109/ITCS.2010.98","url":null,"abstract":"In China, all applications for IPO and listing on stock exchanges must be approved by China Securities Regulatory Commission (CSRC) to ensure that only the best-managed firms are allowed to go public. This article finds that in terms of long-term financial performance, state-owned enterprises (SOEs) that are approved for IPO and public listing by CSRC tend to under-perform those privately owned enterprises that are not approved for IPO and public listing by CSRC. Such a finding has some important implications for how China’s domestic stock markets should be regulated.","PeriodicalId":340471,"journal":{"name":"2010 Second International Conference on Information Technology and Computer Science","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127711228","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}
引用次数: 0
A Digital Pulse Drive Circuit for Continuously Modulated Semiconductor Laser 连续调制半导体激光器的数字脉冲驱动电路
2010 Second International Conference on Information Technology and Computer Science Pub Date : 2010-07-24 DOI: 10.1109/ITCS.2010.66
Song Zhi-yuan, Feng Li, Zhu Shao-lan, Niu Lin-quan
{"title":"A Digital Pulse Drive Circuit for Continuously Modulated Semiconductor Laser","authors":"Song Zhi-yuan, Feng Li, Zhu Shao-lan, Niu Lin-quan","doi":"10.1109/ITCS.2010.66","DOIUrl":"https://doi.org/10.1109/ITCS.2010.66","url":null,"abstract":"A digital designing way of laser drive circuit for continuously modulate the frequency, pulse width and amplitude of the output of semiconductor laser has been demonstrated. Complex programmable logic device (CPLD) was utilized to generate square waves with tunable frequency, the accurate delaying chip and logic circuit which are digital controlled were used to generate electrical pulses with adjustable pulse width. The pulses were amplified by the laser diode driver. The maximum output current of the driver can be up to 600 mA. When the signal was used to drive the semiconductor laser, the shape of the pulses generated by the laser is identical with the electrical pulses. The repetition rate and pulse width of the laser pulse can be continuously adjustable from 1 to 10 kHz and 3 to 20 ns, respectively. Furthermore, the time of rising and falling edges for the laser pulse were less than 2 ns.","PeriodicalId":340471,"journal":{"name":"2010 Second International Conference on Information Technology and Computer Science","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127695002","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}
引用次数: 0
Finite Element Analysis of Oval Steel Coal Scuttle with Double Funnels and Its Unfolded Drawing Automatic Generation 双漏斗椭圆形钢煤斗的有限元分析及展开图自动生成
2010 Second International Conference on Information Technology and Computer Science Pub Date : 2010-07-24 DOI: 10.1109/ITCS.2010.25
Yufeng Zhang
{"title":"Finite Element Analysis of Oval Steel Coal Scuttle with Double Funnels and Its Unfolded Drawing Automatic Generation","authors":"Yufeng Zhang","doi":"10.1109/ITCS.2010.25","DOIUrl":"https://doi.org/10.1109/ITCS.2010.25","url":null,"abstract":"During the design of the second-phase extension project of a fuel electric plant in China, in order to meet the technological requirements, a typical oval steel coal scuttle with double funnels was proposed. This kind of scuttle has a complicated geometrical shape and is difficult to be designed and built. To evaluate the mechanical behavior of this scuttle, the 3D finite element structural analysis was performed by using the software ANSYS. More concretely, the linear elastic static analysis, the elasto-plastic analysis and the buckling analysis were carried out respectively, under two load cases—the whole scuttle is full of coal, one half of the scuttle is full of coal and the other half of the scuttle is empty. The support reactions also were given so as to be capable of providing accurate loads applied on the top of the support beams of the scuttle. The results of calculating and analyzing show that this kind of oval steel coal scuttle is of the better mechanical behaviors and can ensure its running reliably. Further more, in order to be built conveniently and reduce the loss of steel plat as far as possible during blanking and processing, the unfolded drawings were generated automatically by the program written with the language Visual C++ under Object ARX in AutoCAD.","PeriodicalId":340471,"journal":{"name":"2010 Second International Conference on Information Technology and Computer Science","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115949955","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}
引用次数: 0
Using the C_net for Formalizing Workflow Patterns 使用C_net形式化工作流模式
2010 Second International Conference on Information Technology and Computer Science Pub Date : 2010-07-24 DOI: 10.1109/ITCS.2010.31
Liang Zhang, Shuzhen Yao
{"title":"Using the C_net for Formalizing Workflow Patterns","authors":"Liang Zhang, Shuzhen Yao","doi":"10.1109/ITCS.2010.31","DOIUrl":"https://doi.org/10.1109/ITCS.2010.31","url":null,"abstract":"The essence of workflow systems is workflow patterns. Languages based on Petri nets perform better when it comes to state-based workflow patterns. However, some patterns with complex semantic can not be described by Petri-net. C_net was proposed for improving Petri nets in expressiveness of complex data structure and computing method of data value. C_net extends the Petri-Net through adding some new elements and the corresponding mechanisms. C_net can be applied in workflow modeling. In this paper, we use V element and C relation of C_net for describing instance runtime data and complex relation of computing and communication. Soundness of an C_net can be converted to the analysis of throughness and well designedness. All workflow patterns can be directly described using C_net. This paper investigates the issue and introduces a collection of workflow patterns formalizations, each with a sound formal definition and execution semantics. An application example is also given which includes most workflow patterns. The formalizations can be used as a foundation for pattern-based workflow execution, reasoning, and simulation as well as a basis for future research on theoretical aspects of workflow.","PeriodicalId":340471,"journal":{"name":"2010 Second International Conference on Information Technology and Computer Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126102711","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}
引用次数: 1
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