Pub Date : 2011-03-20DOI: 10.1109/ISCI.2011.5958906
Marwa Solla, A. Patel, Christopher Wills
Measuring programmer productivity is a challenging exercise because it is not well understood since it is without bounded rules and ill-defined meanings of complicated set of parameters. This is made worse by new software development paradigms such as agile and mashup methods and the ensuing advances in software engineering practices and ways of designing and developing software. The existing metrics for measuring performance of solo and pairs of programmers does not appear to be suitable to meet these new forms of software development. This paper presents a new metrics which can be used to measure performance productivity of programming effort by solo and pair programmers in a much more comprehensive manner. All of the key parameters are looked at objectively and defined for and from software engineering lifecycle points of view to make productivity performance calculations for solo and pair programmers. The methodology used for formulating and composing the formulae and defining the parameters as coefficients is explained. These parameters are based on a weighting system to derive the effective performance results. It is a more objective and quick way for the performance analysts to define a table of weights for the parameters based on several criteria within the different aspects of the software development lifecycle. The composition of the formulae and the metric for measuring programmer productivity performance is presented and examples are used to illustrate the method and the outcomes.
{"title":"New metric for measuring programmer productivity","authors":"Marwa Solla, A. Patel, Christopher Wills","doi":"10.1109/ISCI.2011.5958906","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958906","url":null,"abstract":"Measuring programmer productivity is a challenging exercise because it is not well understood since it is without bounded rules and ill-defined meanings of complicated set of parameters. This is made worse by new software development paradigms such as agile and mashup methods and the ensuing advances in software engineering practices and ways of designing and developing software. The existing metrics for measuring performance of solo and pairs of programmers does not appear to be suitable to meet these new forms of software development. This paper presents a new metrics which can be used to measure performance productivity of programming effort by solo and pair programmers in a much more comprehensive manner. All of the key parameters are looked at objectively and defined for and from software engineering lifecycle points of view to make productivity performance calculations for solo and pair programmers. The methodology used for formulating and composing the formulae and defining the parameters as coefficients is explained. These parameters are based on a weighting system to derive the effective performance results. It is a more objective and quick way for the performance analysts to define a table of weights for the parameters based on several criteria within the different aspects of the software development lifecycle. The composition of the formulae and the metric for measuring programmer productivity performance is presented and examples are used to illustrate the method and the outcomes.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116259020","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 : 2011-03-20DOI: 10.1109/ISCI.2011.5958987
M. A. Ayu, T. Mantoro, A. F. A. Matin, Saeed Salem Basamh
Activity recognition refers to the ability of a machine/device to recognize the activity of users. This area of research has attracted many works especially related to the context aware and ubiquitous computing area. Wearable accelerometers have been explored for this activity recognition purpose; however the impracticality of attaching accelerometers to the user presents significant issues. Accelerometers today are embedded in many mobile devices. This paper explores the potential and possibility of using these accelerometer data to determine user activity recognition. The initial experiments show encouraging results with a very good accuracy rate of 92%. A simple prototype developed supports the implementation of the recognition process conducted.
{"title":"Recognizing user activity based on accelerometer data from a mobile phone","authors":"M. A. Ayu, T. Mantoro, A. F. A. Matin, Saeed Salem Basamh","doi":"10.1109/ISCI.2011.5958987","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958987","url":null,"abstract":"Activity recognition refers to the ability of a machine/device to recognize the activity of users. This area of research has attracted many works especially related to the context aware and ubiquitous computing area. Wearable accelerometers have been explored for this activity recognition purpose; however the impracticality of attaching accelerometers to the user presents significant issues. Accelerometers today are embedded in many mobile devices. This paper explores the potential and possibility of using these accelerometer data to determine user activity recognition. The initial experiments show encouraging results with a very good accuracy rate of 92%. A simple prototype developed supports the implementation of the recognition process conducted.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133310372","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 : 2011-03-20DOI: 10.1109/ISCI.2011.5958949
R. Sridhar, S. Balasubramaniam
DNA computing is a new method of simulating biomolecular structure of DNA and computing by means of molecular biology technological computation. It introduces a fire-new data structure and calculating method, providing a new way of solving NP-complete problem of traveling salesman. It is a new computational method by harnessing the enormous parallel computing ability and high memory density of bio-molecules, which brings potential challenges and opportunities to cryptography, steganography, Signature and Authentication. In this paper, DNA computing is integrated with GIS to find shortest path of traveling salesman problem with geocomputational method and DNA Computing method without using laboratory. Both methods show the same result proving that problems of GIS could be solved using DNA computing.
{"title":"GIS integrated DNA computing for solving Travelling Salesman Problem","authors":"R. Sridhar, S. Balasubramaniam","doi":"10.1109/ISCI.2011.5958949","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958949","url":null,"abstract":"DNA computing is a new method of simulating biomolecular structure of DNA and computing by means of molecular biology technological computation. It introduces a fire-new data structure and calculating method, providing a new way of solving NP-complete problem of traveling salesman. It is a new computational method by harnessing the enormous parallel computing ability and high memory density of bio-molecules, which brings potential challenges and opportunities to cryptography, steganography, Signature and Authentication. In this paper, DNA computing is integrated with GIS to find shortest path of traveling salesman problem with geocomputational method and DNA Computing method without using laboratory. Both methods show the same result proving that problems of GIS could be solved using DNA computing.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133983520","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 : 2011-03-20DOI: 10.1109/ISCI.2011.5958994
S. Ong, D. Chai, A. Rassau
Business cards have existed since the 19th century and exchanging of business cards is common during introduction. The digital version, an electronic business card, helps to share information quickly and accurately. Also, it allows information to be stored and easily located. However, the current state of the art in business card readers using OCR technology usually fail in correctly reading all elements of the business card. Hence, in this paper, we proposed the use of an Mobile Multi-Colour Composite (MMCC) barcode printed on the business card. Containing the electronic version of the business card, the MMCC barcode allows cheap and accurate reading of the business card with a mobile phone camera. To highlight the effectiveness of the proposed method, we compared the results against commercially available business card readers, both in desktop and mobile versions.
{"title":"A robust mobile business card reader using MMCC barcode","authors":"S. Ong, D. Chai, A. Rassau","doi":"10.1109/ISCI.2011.5958994","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958994","url":null,"abstract":"Business cards have existed since the 19th century and exchanging of business cards is common during introduction. The digital version, an electronic business card, helps to share information quickly and accurately. Also, it allows information to be stored and easily located. However, the current state of the art in business card readers using OCR technology usually fail in correctly reading all elements of the business card. Hence, in this paper, we proposed the use of an Mobile Multi-Colour Composite (MMCC) barcode printed on the business card. Containing the electronic version of the business card, the MMCC barcode allows cheap and accurate reading of the business card with a mobile phone camera. To highlight the effectiveness of the proposed method, we compared the results against commercially available business card readers, both in desktop and mobile versions.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133076561","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 : 2011-03-20DOI: 10.1109/ISCI.2011.5958890
Jangsik Cho, Shohei Kato
This paper describes a method for detecting a dialogist's emotion from his or her voice. The method is based on pairwise classification by probability from the selective pairwise classifiers. In this research, we focus on the elements of emotion included in a dialogist's voice. Thus, as training datasets for learning the pairwise classifiers, we extract acoustic features from emotionally expressive voice samples spoken by unspecified actors and actresses in films, and TV dramas. The acoustic features adopt duration per single mora, fundamental frequency, energy, and formant. All features except duration per single mora have statistics extracted standard deviation, mean, maximum, minimum, median, timezone of maximum, and timezone of minimum. Pairwise classification classifies a multi-class problem by using a series of binary classifiers. Pairwise classifiers used tree augmented naive bayes, which constructs tree structure among the attributes in naive bayes, by selected subset features. The subset features are selected on every pair of emotions by using naive bayes. This paper reports the accuracy rates of emotion detection by using our method. In experimental results from our voice samples, the emotion classification rates improved.
{"title":"Detecting emotion from voice using selective Bayesian pairwise classifiers","authors":"Jangsik Cho, Shohei Kato","doi":"10.1109/ISCI.2011.5958890","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958890","url":null,"abstract":"This paper describes a method for detecting a dialogist's emotion from his or her voice. The method is based on pairwise classification by probability from the selective pairwise classifiers. In this research, we focus on the elements of emotion included in a dialogist's voice. Thus, as training datasets for learning the pairwise classifiers, we extract acoustic features from emotionally expressive voice samples spoken by unspecified actors and actresses in films, and TV dramas. The acoustic features adopt duration per single mora, fundamental frequency, energy, and formant. All features except duration per single mora have statistics extracted standard deviation, mean, maximum, minimum, median, timezone of maximum, and timezone of minimum. Pairwise classification classifies a multi-class problem by using a series of binary classifiers. Pairwise classifiers used tree augmented naive bayes, which constructs tree structure among the attributes in naive bayes, by selected subset features. The subset features are selected on every pair of emotions by using naive bayes. This paper reports the accuracy rates of emotion detection by using our method. In experimental results from our voice samples, the emotion classification rates improved.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114053360","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 : 2011-03-20DOI: 10.1109/ISCI.2011.5958944
A. Yousofi, M. Banitaba, Saeed Yazdanpanah
The World Wide Web is fundamental infrastructure for different services. The number of accessing to web sites is significantly increasing. Cluster-based web systems (web-cluster) are a new solution to implement a web server system with high efficiency and availability. In practice, a web cluster consists of several web servers, and a web switch which distributes user's requests among server nodes. Achieving high efficiency from web cluster requires load balancing between web servers. In this paper, we propose a novel dispatching policy, namely Multi-Class Round Robin with Congestion Control and Cost Reduction (MC-RR-CC-CR), for web switches operating at layer 7 of the OSI protocol stack. The results of a real scenario showed that the proposed method can significantly balance the load of web cluster and substantially improve the system efficiency. Particularly when web cluster is heterogeneous and web site content is dynamic.
{"title":"A novel method for achieving load balancing in web clusters based on congestion control and cost reduction","authors":"A. Yousofi, M. Banitaba, Saeed Yazdanpanah","doi":"10.1109/ISCI.2011.5958944","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958944","url":null,"abstract":"The World Wide Web is fundamental infrastructure for different services. The number of accessing to web sites is significantly increasing. Cluster-based web systems (web-cluster) are a new solution to implement a web server system with high efficiency and availability. In practice, a web cluster consists of several web servers, and a web switch which distributes user's requests among server nodes. Achieving high efficiency from web cluster requires load balancing between web servers. In this paper, we propose a novel dispatching policy, namely Multi-Class Round Robin with Congestion Control and Cost Reduction (MC-RR-CC-CR), for web switches operating at layer 7 of the OSI protocol stack. The results of a real scenario showed that the proposed method can significantly balance the load of web cluster and substantially improve the system efficiency. Particularly when web cluster is heterogeneous and web site content is dynamic.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115706954","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 : 2011-03-20DOI: 10.1109/ISCI.2011.5958976
J. Tay, R. M. Noor
The traditional TCP was designed for wired network; implementing TCP protocol in wireless network may lead inaccuracy prediction and will results suffer performance degradation in network. A proposed TCP-Hybrid congestion mechanism is presented in this article to address the issues by improving TCP performance in wireless environments such as a mobile WiMAX. The model adapted the existing TCP congestion control which is based on TCP-Vegas and adopting a modification Scalable TCP aggressive rule to increase a window size. The experiment results have shown that while all TCP variants produces similar throughput, window size and round trip time, even they do in different ways. But however our propose mechanism has proven 1.3% to 3% more better throughput compared to TCP-Vegas and TCP-Scalable and also high window size contributed mechanism.
{"title":"A Hybrid TCP congestion mechanism to improve mobile WiMAX networks","authors":"J. Tay, R. M. Noor","doi":"10.1109/ISCI.2011.5958976","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958976","url":null,"abstract":"The traditional TCP was designed for wired network; implementing TCP protocol in wireless network may lead inaccuracy prediction and will results suffer performance degradation in network. A proposed TCP-Hybrid congestion mechanism is presented in this article to address the issues by improving TCP performance in wireless environments such as a mobile WiMAX. The model adapted the existing TCP congestion control which is based on TCP-Vegas and adopting a modification Scalable TCP aggressive rule to increase a window size. The experiment results have shown that while all TCP variants produces similar throughput, window size and round trip time, even they do in different ways. But however our propose mechanism has proven 1.3% to 3% more better throughput compared to TCP-Vegas and TCP-Scalable and also high window size contributed mechanism.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114396183","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 : 2011-03-20DOI: 10.1109/ISCI.2011.5959000
D. Bansal, S. Sofat, Prafulla Kumar
To deter internal attacks, Intrusion Detection Systems are the most favorable solutions for detecting intrusions and raising alerts for desired action since using encryption software for secure communication is not enough. A number of intrusion detection systems have been proposed for ad-hoc networks. Such intrusion detection systems cannot perform well for wireless mesh networks due to its multihop decentralized architecture. The selection of optimal and secure routing path and detection of multilayer security attacks cannot be achieved using traditional single layer IDS. Most of the MAC layer attacks occur due to non compliance of protocols by the nodes. Such a malicious behavior cannot be detected using conventional IDS. In this paper, a Cross Layer based Intrusion detection system has been proposed which takes advantage of the information available across different layers of protocol by activating multiple layer monitoring and detection. The proposed Cross layer based IDS is novel in its architecture and is able to detect multi layer attacks of compound nature. It can also detect low intensity attacks and attack switching behaviors which have been the major shortcoming of most of the existing IDS for Wireless Networks.
{"title":"Distributed cross layer approach for detecting multilayer attacks in wireless multi-hop networks","authors":"D. Bansal, S. Sofat, Prafulla Kumar","doi":"10.1109/ISCI.2011.5959000","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5959000","url":null,"abstract":"To deter internal attacks, Intrusion Detection Systems are the most favorable solutions for detecting intrusions and raising alerts for desired action since using encryption software for secure communication is not enough. A number of intrusion detection systems have been proposed for ad-hoc networks. Such intrusion detection systems cannot perform well for wireless mesh networks due to its multihop decentralized architecture. The selection of optimal and secure routing path and detection of multilayer security attacks cannot be achieved using traditional single layer IDS. Most of the MAC layer attacks occur due to non compliance of protocols by the nodes. Such a malicious behavior cannot be detected using conventional IDS. In this paper, a Cross Layer based Intrusion detection system has been proposed which takes advantage of the information available across different layers of protocol by activating multiple layer monitoring and detection. The proposed Cross layer based IDS is novel in its architecture and is able to detect multi layer attacks of compound nature. It can also detect low intensity attacks and attack switching behaviors which have been the major shortcoming of most of the existing IDS for Wireless Networks.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"192 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115491064","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 : 2011-03-20DOI: 10.1109/ISCI.2011.5958885
Salyani Osman, N. Zin, N. S. Ashaari, Y. Omar
Alternative method to reduce dependency on instructors in teaching and learning traditional crafts will be greatly benefited from electronic learning practices. In order to make sure the courseware for teaching and learning traditional craft is applicable, effective and support teaching and learning pedagogy, a model for courseware development of teaching and learning traditional craft was developed and derived from methodologies synthesized from related research areas. Through an extensive review of literature, the model was specifically designs to meet the needs of adult learners in a web-based environment with concentrating on designing strategic learning using cognitive apprenticeship approaches. The aim of this study is to verify each component of the proposed model (namely CDTC Model) through initial validation by an Evaluator Committee that was appointed among selected craft instructors from National Craft Institute, Rawang, Malaysia (Institut Kraf Negara (IKN)). The validation is purposely to examine, evaluate, and score the efficacy of each proposed components according to its relevance to the model and was realized through quantitative investigation using questionnaire among Evaluator Committee. The committee, evaluated the model and made recommendations for improving the model. Components validated by committee were used in designing a preliminary version of the model. A significant contribution in this research is to provide relevant preliminary CDTC model for courseware development of teaching and learning traditional craft that will support and preserve our traditional heritage for future generation. With the development of the CDTC model, hopefully it will encourage courseware designers to develop more multimedia applications for teaching and learning traditional craft as well as a good reference for educators, instructional designers, and product developers for developing interactive multimedia applications.
在传统工艺的教学和学习中，减少对教师依赖的替代方法将大大受益于电子学习实践。为保证传统工艺教学课件的适用性、有效性和对教与学教学法的支持，综合相关研究领域的方法，开发并导出了传统工艺教学课件开发模型。通过广泛的文献回顾，该模型是专门为满足成人学习者在网络环境中的需求而设计的，重点是使用认知学徒方法设计策略学习。本研究的目的是通过评估委员会的初步验证，验证所提议的模型(即CDTC模型)的每个组成部分，该委员会是由马来西亚拉旺国家工艺学院(Institut Kraf Negara (IKN))选定的工艺教师组成的。验证的目的是根据各提议成分与模型的相关性对其有效性进行检查、评价和评分，并通过评估委员会之间的问卷调查进行定量调查。委员会对该模型进行了评估，并提出了改进该模型的建议。通过委员会验证的组件被用于设计模型的初步版本。本研究的重要贡献在于为传统工艺教与学的课件开发提供相关的初步CDTC模型，以支持和保护我们的传统遗产。随着CDTC模型的发展，希望它能鼓励课件设计者开发更多的多媒体应用，用于传统工艺的教学和学习，并为教育工作者、教学设计师和产品开发者开发交互式多媒体应用提供良好的参考。
{"title":"Model for courseware development of teaching and learning traditional craft (CDTC model): Initial validation","authors":"Salyani Osman, N. Zin, N. S. Ashaari, Y. Omar","doi":"10.1109/ISCI.2011.5958885","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958885","url":null,"abstract":"Alternative method to reduce dependency on instructors in teaching and learning traditional crafts will be greatly benefited from electronic learning practices. In order to make sure the courseware for teaching and learning traditional craft is applicable, effective and support teaching and learning pedagogy, a model for courseware development of teaching and learning traditional craft was developed and derived from methodologies synthesized from related research areas. Through an extensive review of literature, the model was specifically designs to meet the needs of adult learners in a web-based environment with concentrating on designing strategic learning using cognitive apprenticeship approaches. The aim of this study is to verify each component of the proposed model (namely CDTC Model) through initial validation by an Evaluator Committee that was appointed among selected craft instructors from National Craft Institute, Rawang, Malaysia (Institut Kraf Negara (IKN)). The validation is purposely to examine, evaluate, and score the efficacy of each proposed components according to its relevance to the model and was realized through quantitative investigation using questionnaire among Evaluator Committee. The committee, evaluated the model and made recommendations for improving the model. Components validated by committee were used in designing a preliminary version of the model. A significant contribution in this research is to provide relevant preliminary CDTC model for courseware development of teaching and learning traditional craft that will support and preserve our traditional heritage for future generation. With the development of the CDTC model, hopefully it will encourage courseware designers to develop more multimedia applications for teaching and learning traditional craft as well as a good reference for educators, instructional designers, and product developers for developing interactive multimedia applications.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"193 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124288364","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 : 2011-03-20DOI: 10.1109/ISCI.2011.5959021
J. Cullen, A. Mason, M. Al-Jader, N. Wylie, A. Shaw, A. Al-Shamma'a
Resistance welding is used extensively in manufacturing industries, the most popular being spot welding in the automotive industry. Despite spot welding being in use for over a century, there has been relatively little development of sensors for monitoring the process in real-time. Most existing systems use current, voltage and electrode force to give an indication of welding quality, however these systems do not provide warning of changes in the welding environment. These changes could include material variability or electrode condition, which could result in weak weld nuggets. Presented in this paper is an investigation of a system that utilises an array of sensors, including current, voltage, infrared and ultrasonic that is capable of monitoring the spot welding process as it is performed. This system utilises wireless sensor technology to transmit data from the welding arms to a sensor connected to a base computer where the data can be analysed. The wireless link is particularly useful when retrofitting the sensor cluster to existing installations.
{"title":"Multi-sensor spot welding monitor using wireless sensor network technology","authors":"J. Cullen, A. Mason, M. Al-Jader, N. Wylie, A. Shaw, A. Al-Shamma'a","doi":"10.1109/ISCI.2011.5959021","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5959021","url":null,"abstract":"Resistance welding is used extensively in manufacturing industries, the most popular being spot welding in the automotive industry. Despite spot welding being in use for over a century, there has been relatively little development of sensors for monitoring the process in real-time. Most existing systems use current, voltage and electrode force to give an indication of welding quality, however these systems do not provide warning of changes in the welding environment. These changes could include material variability or electrode condition, which could result in weak weld nuggets. Presented in this paper is an investigation of a system that utilises an array of sensors, including current, voltage, infrared and ultrasonic that is capable of monitoring the spot welding process as it is performed. This system utilises wireless sensor technology to transmit data from the welding arms to a sensor connected to a base computer where the data can be analysed. The wireless link is particularly useful when retrofitting the sensor cluster to existing installations.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"593 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116553158","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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