This paper describes a software system for rapid, coding-free development of interactive simulations in Web pages. The core of the system is a library of reusable objects based on the NumberLinX (NLX) architecture: GUI objects for user-controlled inputs, output displays, and controls, along with calculation objects and a manager linking all the objects. The development system included an NLX library, an application program for entering the model description, and integration of the NLX objects into a commercial Web design program for page construction
{"title":"Interactive Simulation in Web Pages: A System for Rapid Development","authors":"J. M. Kootsey","doi":"10.1109/AMS.2007.57","DOIUrl":"https://doi.org/10.1109/AMS.2007.57","url":null,"abstract":"This paper describes a software system for rapid, coding-free development of interactive simulations in Web pages. The core of the system is a library of reusable objects based on the NumberLinX (NLX) architecture: GUI objects for user-controlled inputs, output displays, and controls, along with calculation objects and a manager linking all the objects. The development system included an NLX library, an application program for entering the model description, and integration of the NLX objects into a commercial Web design program for page construction","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123361314","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}
Real-time simulation has been used since the early days of computer simulation. Current real-time operating systems can support real-time simulations with frame times as short as hundreds of microseconds. Some applications are now emerging that need shorter frame times, as low as 1 microsecond. New techniques are required for these high-speed real-time (HSRT) simulations. One approach is based on small arrays of digital signal processors. For complex systems it may be necessary to embed HSRT simulations in a larger real-time system using a multi-rate approach.
{"title":"High-Speed Real-Time Simulation","authors":"R. Crosbie","doi":"10.1109/AMS.2007.50","DOIUrl":"https://doi.org/10.1109/AMS.2007.50","url":null,"abstract":"Real-time simulation has been used since the early days of computer simulation. Current real-time operating systems can support real-time simulations with frame times as short as hundreds of microseconds. Some applications are now emerging that need shorter frame times, as low as 1 microsecond. New techniques are required for these high-speed real-time (HSRT) simulations. One approach is based on small arrays of digital signal processors. For complex systems it may be necessary to embed HSRT simulations in a larger real-time system using a multi-rate approach.","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114799141","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 paper contains the modelling of system comprising, the diesel generator, wind energy source, photovoltaic cell, solar power cells in source side domestic load, Industrial load in load side. The diesel generator is considered as a controlled energy source, and the wind is an uncontrolled energy source and the domestic load as an uncontrolled energy sink. All the components are modelled in MATLAB/SIMULINK and their response for the load changes are studied
{"title":"Analysis of Hybrid Power Systems","authors":"V. Rao, Chellamuthu Chinnagounder","doi":"10.1109/AMS.2007.15","DOIUrl":"https://doi.org/10.1109/AMS.2007.15","url":null,"abstract":"The paper contains the modelling of system comprising, the diesel generator, wind energy source, photovoltaic cell, solar power cells in source side domestic load, Industrial load in load side. The diesel generator is considered as a controlled energy source, and the wind is an uncontrolled energy source and the domestic load as an uncontrolled energy sink. All the components are modelled in MATLAB/SIMULINK and their response for the load changes are studied","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132071141","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}
A technique for the modelling of nonlinear process control using recursive least square and Takagi-Sugeno fuzzy system with genetic algorithm topology is described. This paper discusses the identification of parameters of the fuzzy sets at the antecedent part and linear model at the consequent part of fuzzy model within an application to process control. The key issues of finding the best model of the process are described. Results show that fuzzy model with genetic algorithm gives minimum mean squared error compare with recursive least square
{"title":"Recursive Least Square and Fuzzy Modelling Using Genetic Algorithm for Process Control Application","authors":"R. A. Rahman, R. Yusof, M. Khalid","doi":"10.1109/AMS.2007.83","DOIUrl":"https://doi.org/10.1109/AMS.2007.83","url":null,"abstract":"A technique for the modelling of nonlinear process control using recursive least square and Takagi-Sugeno fuzzy system with genetic algorithm topology is described. This paper discusses the identification of parameters of the fuzzy sets at the antecedent part and linear model at the consequent part of fuzzy model within an application to process control. The key issues of finding the best model of the process are described. Results show that fuzzy model with genetic algorithm gives minimum mean squared error compare with recursive least square","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131183334","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 recent years, the power quality of the AC system has become a great concern due to the rapidly increased numbers of electronic equipment, power electronics and high voltage power system. In order to reduce harmonic contamination in power lines and improve transmission efficiency, power factor correction research became a hot topic. Many control methods for the power factor correction (PFC) were proposed. This paper describes the design and development of a three-phase power factor corrector using PIC (programmable interface circuit) micro-controlling chip. This involves sensing and measuring the power factor value from the load using PIC and sensors, then using proper algorithm to determine and trigger sufficient switching capacitors in order to compensate excessive reactive components, thus withdraw PF near to unity; as a result acquires higher efficiency and better quality AC output. Various power factor correction methods will also be discussed upon their applications in a specific sections
{"title":"Programming of PIC Micro-Controller for Power Factor Correction","authors":"N. Barsoum","doi":"10.1109/AMS.2007.82","DOIUrl":"https://doi.org/10.1109/AMS.2007.82","url":null,"abstract":"In recent years, the power quality of the AC system has become a great concern due to the rapidly increased numbers of electronic equipment, power electronics and high voltage power system. In order to reduce harmonic contamination in power lines and improve transmission efficiency, power factor correction research became a hot topic. Many control methods for the power factor correction (PFC) were proposed. This paper describes the design and development of a three-phase power factor corrector using PIC (programmable interface circuit) micro-controlling chip. This involves sensing and measuring the power factor value from the load using PIC and sensors, then using proper algorithm to determine and trigger sufficient switching capacitors in order to compensate excessive reactive components, thus withdraw PF near to unity; as a result acquires higher efficiency and better quality AC output. Various power factor correction methods will also be discussed upon their applications in a specific sections","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"123 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124648683","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}
According to the results of our research, enterprise integration in a component-based environment need validation, design and provision stages to achieve its business goal. Our current research has extended to the service virtualization which is the final stage in service provisioning. This research paper reviews our previous work and use examples in the financial industry to demonstrate how services are derived from business components, and how they are designed and produced in achieving service virtualization
{"title":"Integration Strategy and Case Study in Financial Industry","authors":"R. Wu","doi":"10.1109/AMS.2007.56","DOIUrl":"https://doi.org/10.1109/AMS.2007.56","url":null,"abstract":"According to the results of our research, enterprise integration in a component-based environment need validation, design and provision stages to achieve its business goal. Our current research has extended to the service virtualization which is the final stage in service provisioning. This research paper reviews our previous work and use examples in the financial industry to demonstrate how services are derived from business components, and how they are designed and produced in achieving service virtualization","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129094468","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 foundation of the Internet network architecture, which revolves around the transfer of packets over multitude of networks, need to be improvised to support multimedia communications. To this end the Internet community has proposed several architectures that potentially can address this requirement. Two promising architectures are differentiated services (DiffServ) and multiprotocol label switching (MPLS). This paper describes a fuzzy logic token bucket bandwidth predictor for assured forwarding (AF) traffic aggregates at the DiffServ level in a DiffServ-aware MPLS Internet network. The AF traffic class comprise of variable bit rates traffic. The fuzzy logic bandwidth predictor facilitates bandwidth predicting and dynamic policing at the DiffServ level. A simulation study was performed for the fuzzy logic predictor using network simulator-2. The network and traffic models were developed and validated before the performance study is performed. The results show that the fuzzy logic predictor gave commendable bandwidth prediction compared to actual bandwidth utilization of the AF traffic class
{"title":"Fuzzy Logic Token Bucket Bandwidth Predictor for Assured Forwarding Traffic in a DiffServ-Aware MPLS Internet","authors":"N. M. Din, N. Fisal","doi":"10.1109/AMS.2007.47","DOIUrl":"https://doi.org/10.1109/AMS.2007.47","url":null,"abstract":"The foundation of the Internet network architecture, which revolves around the transfer of packets over multitude of networks, need to be improvised to support multimedia communications. To this end the Internet community has proposed several architectures that potentially can address this requirement. Two promising architectures are differentiated services (DiffServ) and multiprotocol label switching (MPLS). This paper describes a fuzzy logic token bucket bandwidth predictor for assured forwarding (AF) traffic aggregates at the DiffServ level in a DiffServ-aware MPLS Internet network. The AF traffic class comprise of variable bit rates traffic. The fuzzy logic bandwidth predictor facilitates bandwidth predicting and dynamic policing at the DiffServ level. A simulation study was performed for the fuzzy logic predictor using network simulator-2. The network and traffic models were developed and validated before the performance study is performed. The results show that the fuzzy logic predictor gave commendable bandwidth prediction compared to actual bandwidth utilization of the AF traffic class","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125601565","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}
H. Mohanty, J. Mulchandani, D. Chenthati, R. Shyamasundar
Web service modeling research is largely limited to service conversation i.e. choreography. Recently, we have proposed a method to model both service orchestration and choreography using a FSM. But a flat approach (i.e. modeling at one level only) is not suitable to represent a large and complex service process. For the purpose, we propose a method to model Web services using FSM modules. And shown that such a model is structured, understandable (especially while handling concurrent activities), verifiable and useful for model transformation. We have proposed two operators to model temporal behavior of Web services
{"title":"Modeling Web Services with FSM Modules","authors":"H. Mohanty, J. Mulchandani, D. Chenthati, R. Shyamasundar","doi":"10.1109/AMS.2007.63","DOIUrl":"https://doi.org/10.1109/AMS.2007.63","url":null,"abstract":"Web service modeling research is largely limited to service conversation i.e. choreography. Recently, we have proposed a method to model both service orchestration and choreography using a FSM. But a flat approach (i.e. modeling at one level only) is not suitable to represent a large and complex service process. For the purpose, we propose a method to model Web services using FSM modules. And shown that such a model is structured, understandable (especially while handling concurrent activities), verifiable and useful for model transformation. We have proposed two operators to model temporal behavior of Web services","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121576721","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}
Traffic models play an important role in both today's traffic research and in many traffic applications such as traffic flow prediction, incident detection and traffic control. Modelling traffic dynamics and optimising the control signal are two interrelated problems. Modelling provides fundamental understanding of traffic dynamics and behaviour. In this paper, traffic signal is modelled as a M/M/l queueing theory. The validation of a simulation model (M/M/l queue) with different arrival rates is presented. From the result, a traffic light model was developed by applying M/M/l queue theory for single intersection. In the optimisation strategy, the Markov decision control is applied to minimize queue length and waiting time. Simulation results show the excellent potential of this approach
{"title":"Modelling and Optimisation of a Traffic Intersection Based on Queue Theory and Markov Decision Control Methods","authors":"A. C. Soh, M. Marhaban, M. Khalid, R. Yusof","doi":"10.1109/AMS.2007.64","DOIUrl":"https://doi.org/10.1109/AMS.2007.64","url":null,"abstract":"Traffic models play an important role in both today's traffic research and in many traffic applications such as traffic flow prediction, incident detection and traffic control. Modelling traffic dynamics and optimising the control signal are two interrelated problems. Modelling provides fundamental understanding of traffic dynamics and behaviour. In this paper, traffic signal is modelled as a M/M/l queueing theory. The validation of a simulation model (M/M/l queue) with different arrival rates is presented. From the result, a traffic light model was developed by applying M/M/l queue theory for single intersection. In the optimisation strategy, the Markov decision control is applied to minimize queue length and waiting time. Simulation results show the excellent potential of this approach","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115855915","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}
Vehicle license plate recognition has been intensively studied in many countries. Due to the different types of license plates being used, the requirement of an automatic license plate recognition system is different for each country. In this paper, an automatic license plate recognition system is proposed for Malaysian vehicles with standard license plates using blob labeling and clustering for segmentation, seven popular and one proposed edge detectors for feature extraction and neural networks for classification. There were eight experiments conducted using eight different edge detectors: Kirsch, Sobel, Laplacian, Wallis, Prewitt, Frei Chen and a proposed edge detector. The result had shown kirsch edge detectors is the best technique for feature exractor while the proposed achieved better results compared to Prewitt, Frei Chen and Wallis
{"title":"Comparison of Feature Extractors in License Plate Recognition","authors":"S. Abdullah, M. Khalid, R. Yusof, K. Omar","doi":"10.1109/AMS.2007.25","DOIUrl":"https://doi.org/10.1109/AMS.2007.25","url":null,"abstract":"Vehicle license plate recognition has been intensively studied in many countries. Due to the different types of license plates being used, the requirement of an automatic license plate recognition system is different for each country. In this paper, an automatic license plate recognition system is proposed for Malaysian vehicles with standard license plates using blob labeling and clustering for segmentation, seven popular and one proposed edge detectors for feature extraction and neural networks for classification. There were eight experiments conducted using eight different edge detectors: Kirsch, Sobel, Laplacian, Wallis, Prewitt, Frei Chen and a proposed edge detector. The result had shown kirsch edge detectors is the best technique for feature exractor while the proposed achieved better results compared to Prewitt, Frei Chen and Wallis","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121060761","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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