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7th International Multi Topic Conference, 2003. INMIC 2003.最新文献

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Constellation selection for the high speed digital modems 星座选择为高速数字调制解调器
7th International Multi Topic Conference, 2003. INMIC 2003. Pub Date : 2003-12-08 DOI: 10.1109/INMIC.2003.1416669
A. Hussain, M.A. Khan
{"title":"Constellation selection for the high speed digital modems","authors":"A. Hussain, M.A. Khan","doi":"10.1109/INMIC.2003.1416669","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416669","url":null,"abstract":"We present a procedure to dynamically generate the constellation sets of pulse code modulation (PCM) octets, which represent digital data on the public switched telephone network (PSTN). The underlying mathematical modeling of the digital modem has been exploited in order to develop a novel technique, which allows the lower power constellation points to be spaced as far apart as possible from each other without compromising on the data rate and power limitation. The application of the algorithm lies in the design and development of the V.90, and V.92 high-speed modems.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115498344","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
Optimizing retrieval process and using neural networks for adaptation process in case based reasoning systems 案例推理系统中检索过程的优化与神经网络自适应
7th International Multi Topic Conference, 2003. INMIC 2003. Pub Date : 2003-12-08 DOI: 10.1109/INMIC.2003.1416750
I. Lodhi, K. Hasan, U. Hasan, N. Mahmood, T. Yoshida, M. A. Anwar
{"title":"Optimizing retrieval process and using neural networks for adaptation process in case based reasoning systems","authors":"I. Lodhi, K. Hasan, U. Hasan, N. Mahmood, T. Yoshida, M. A. Anwar","doi":"10.1109/INMIC.2003.1416750","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416750","url":null,"abstract":"The retrieval process in case based reasoning systems (CBR) is a two-step process. It starts with a problem description and ends when a best matching previous case(s) has/have been retrieved. To optimize the retrieval process, enhancement of both processes is required. This research work explores the use of XML (Extensible Markup Language) as a case descriptive language. An additional goal is to identify factors which play a major role in the optimization process. This work also presents an experimental investigation concerning the use of artificial neural networks in the adaptation process of CBR systems. A backpropagation feedforward neural network in different configurations, has been employed to carry out empirical analysis of using this technique for case based adaptation.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123195002","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: 2
Integrating knowledge-base and Dijkstra's algorithm for finding best alternate route dynamically 结合知识库和Dijkstra算法动态寻找最佳备选路径
7th International Multi Topic Conference, 2003. INMIC 2003. Pub Date : 2003-12-08 DOI: 10.1109/INMIC.2003.1416765
M. A. Anwar
{"title":"Integrating knowledge-base and Dijkstra's algorithm for finding best alternate route dynamically","authors":"M. A. Anwar","doi":"10.1109/INMIC.2003.1416765","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416765","url":null,"abstract":"Finding a good route for traveling has become a necessity for human beings and also one of the major problems faced by the transportation industry. The huge and complicated road network in a modern country makes it difficult to find the best route for traveling from one place to another place. In developing countries this problem becomes even more complex and complicated due to the small number of inevitable links and road-track-crossing links. The route searched by the shortest path algorithm alone may be shortest one but cannot guarantee to be the best route because of many irrelevant road segments as part of the solution. Moreover, en route emergencies may make the decided route unusable or more time is required than in normal situations. We discuss and propose adhoc database changes to find en route best alternate route in the case of an emergency. We also used knowledge-based techniques, case-based reasoning to prune the search space.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122158640","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: 2
Tests for temperature-rise, power-dissipation measurement and breaking capacity on a prototype model of a high-voltage fuse 高压熔断器样机的温升、功耗测量和分断能力试验
7th International Multi Topic Conference, 2003. INMIC 2003. Pub Date : 2003-12-08 DOI: 10.1109/INMIC.2003.1416774
M. Saqib
{"title":"Tests for temperature-rise, power-dissipation measurement and breaking capacity on a prototype model of a high-voltage fuse","authors":"M. Saqib","doi":"10.1109/INMIC.2003.1416774","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416774","url":null,"abstract":"This work presents the results for temperature-rise, power-dissipation measurement and breaking-capacity tests on a prototype model during the development of a current-limiting high-voltage fuse. The power-dissipation and temperature-rise measurements are made when rated current was passed through the fuse carrier. The temperature of various parts of the fuse-link has been measured using thermocouples: the results are within the limits set by several international standards. The upper limit of the results obtained by the power-dissipation measurements is around 110 W. The results of successive breaking tests, during the development work, for Test Duty 1 - at 11 kV, 20 kA - show gradual improvements.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124600435","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: 2
A step-up DC-DC voltage converter using capacitors as energy-storage elements 使用电容器作为储能元件的升压DC-DC电压变换器
7th International Multi Topic Conference, 2003. INMIC 2003. Pub Date : 2003-12-08 DOI: 10.1109/INMIC.2003.1416770
K. Karimov, M. Saqib, M.M. Ahmed, M. A. Turaev, W. Majeed
{"title":"A step-up DC-DC voltage converter using capacitors as energy-storage elements","authors":"K. Karimov, M. Saqib, M.M. Ahmed, M. A. Turaev, W. Majeed","doi":"10.1109/INMIC.2003.1416770","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416770","url":null,"abstract":"This work reports the design and implementation of a step-up DC-DC converter in which capacitors are used as energy-storage elements. A number of characteristics of this converter such as its output voltage, load power and efficiency are observed with the variations in the frequency of the driving-circuit's oscillator, base-emitter voltage of the power transistors and the source voltage. It is shown that, in optimal conditions, the converter's output voltage is twice its input voltage. This kind of converter is easy to fabricate, and can be used in power modules located inside portable systems where smaller size and lower weight are crucial considerations.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124624131","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: 2
Scattering of EM fields from a circular cylinder buried inside a dielectric half space using moment method 用矩量法研究介电介质半空间内圆柱体电磁场的散射
7th International Multi Topic Conference, 2003. INMIC 2003. Pub Date : 2003-12-08 DOI: 10.1109/INMIC.2003.1416709
M. A. Ashraf, A. A. Rizvi
{"title":"Scattering of EM fields from a circular cylinder buried inside a dielectric half space using moment method","authors":"M. A. Ashraf, A. A. Rizvi","doi":"10.1109/INMIC.2003.1416709","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416709","url":null,"abstract":"Scattering of electromagnetic field from a perfectly electrically conducting circular cylinder buried inside a dielectric half space is studied. A plane wave of known parameters is incident from the half space not containing the cylinder. The electric field of the incident plane wave is parallel to the axis of the cylinder. The electric field integral equation is used to find the currents induced on the cylinder. It is solved numerically using the method of moments. The elements of the impedance matrix have two parts, one is the free space Green's function and the second part is the Sommerfeld-type integral. The Sommerfeld-type integral is numerically integrated using Filon's method of integration. The induced currents are then used to find the scattered field in the half-space, which does not contain the cylinder. Results obtained are compared to results previously obtained by approximate methods.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127297378","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: 2
GA neuro-fuzzy damping control system for UPFC to enhance power system transient stability 基于遗传算法的UPFC神经模糊阻尼控制系统提高电力系统暂态稳定性
7th International Multi Topic Conference, 2003. INMIC 2003. Pub Date : 2003-12-08 DOI: 10.1109/INMIC.2003.1416727
L. Khan, N. Ahmed, C. Lozano
{"title":"GA neuro-fuzzy damping control system for UPFC to enhance power system transient stability","authors":"L. Khan, N. Ahmed, C. Lozano","doi":"10.1109/INMIC.2003.1416727","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416727","url":null,"abstract":"A hybrid GA-neurofuzzy damping control system for a unified power flow controller (UPFC) is proposed to enhance the transient and dynamic stability of a power system. The neurofuzzy damping controller is configured by employing a five layer feedforward fuzzy neural network. A novel \"grandparenting\" technique is employed for seeding the initial population to hasten the convergence speed of micro-GA. Also, a parallel micro-GA scheme is used to speed up the genetic algorithm search-space surfing process. The performance of the resulting neurofuzzy-based UPFC is validated in a multi-machine power system environment by means of digital simulation.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121954826","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: 7
A simulation framework for a reaction wheel based AOCS 基于反作用轮的AOCS仿真框架
7th International Multi Topic Conference, 2003. INMIC 2003. Pub Date : 2003-12-08 DOI: 10.1109/INMIC.2003.1416735
M. Omer, Q. Saeed, M. Suddle
{"title":"A simulation framework for a reaction wheel based AOCS","authors":"M. Omer, Q. Saeed, M. Suddle","doi":"10.1109/INMIC.2003.1416735","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416735","url":null,"abstract":"The attitude control problem for geo-stationary satellites poses a challenge to a control system designer due to the tradeoff between limited number of actuation techniques available and the robustness of the system. The reaction wheels present an economical solution in terms of energy and also enable a smooth control technique as opposed to a chattering control exhibited by thruster techniques. By continuously exchanging momentum between the spacecraft body and reaction/momentum wheels a fine pointing control can be implemented. This work describes a simulation framework built for the design of an attitude control system for an indigenous communication satellite. It describes the modeling of the dynamics of the spacecraft structure carrying reaction wheels and its capacity for external disturbance rejection. The controller and the associated compensator algorithms are discussed in the context of pitch axis control. Finally an integrated model allowing 3-degrees of freedom to the spacecraft structure carrying three separate reaction wheels is implemented. The expected performance of the control system is demonstrated through a simulation showing a graphic reorientation of a multi-faced body in accordance with the attitude control command issued by the autopilot.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115828157","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: 5
A general approach to natural language conversion 自然语言转换的一般方法
7th International Multi Topic Conference, 2003. INMIC 2003. Pub Date : 2003-12-08 DOI: 10.1109/INMIC.2003.1416754
M. Masud, M. Joarder, M. Tariq-ul-Azam
{"title":"A general approach to natural language conversion","authors":"M. Masud, M. Joarder, M. Tariq-ul-Azam","doi":"10.1109/INMIC.2003.1416754","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416754","url":null,"abstract":"Natural language processing is a technique that includes both natural language understanding and natural language generation. Translating one natural language into another becomes complex due to structural difference, varieties of meanings, different forms of verbs etc. In this paper, a general algorithm has been developed which takes one natural language (i.e. English, German etc) as input and produces another natural language (i.e. Bengali, Japanese etc.) as output reserving the same expression. For understanding the input natural language, a smart-parse algorithm has been developed which unambiguously and efficiently generates a stack of the parse tree from the existing structure. After parsing, it incorporates itself with the knowledge base and dictionary and finally produces the corresponding targeted natural language. After fixing up the input and output natural language, it is possible to use this algorithm for translation after simple modification.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"277 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125849261","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: 2
Precis of best practices for Pakistan's local software industry 巴基斯坦本地软件产业的最佳实践
7th International Multi Topic Conference, 2003. INMIC 2003. Pub Date : 2003-12-08 DOI: 10.1109/INMIC.2003.1416769
F. Lodhi, A. Tariq, S. Naveed, S. Gul, M. Khalid
{"title":"Precis of best practices for Pakistan's local software industry","authors":"F. Lodhi, A. Tariq, S. Naveed, S. Gul, M. Khalid","doi":"10.1109/INMIC.2003.1416769","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416769","url":null,"abstract":"At maturity level 2, the model proposed by CMM identifies more than 180 sub-practices. These sub-practices generate over 110 work-products. Small organizations simply do not have the resources to satisfy all these requirements. This work attempts to identify the best practices for our local software industry while at the same time aligning these activities with those of CMM, yielding the maximum value in the short term. This would enable organizations to smoothly transition to the CMM when desired.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126257404","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: 2
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