Pub Date : 2019-06-13DOI: 10.35382/18594816.1.1.2019.88
T. Nguyen, Vi Thi Thuy Ha
Higher education data is growing, but the exploitation and extraction of meaningful knowledge for management have not been paid much attention. The existing mining tools are not effective. This study aims to introduce three techniques for educational data mining: (1) Classification techniques, (2) Predictive models, (3) Clustering techniques. Simultaneously, the study also proposes some solutions to analyze and visualize data, predict students’ learning capacity and assemble learners. Thereby, education managers could choose appropriate data mining solutions for effective management and training.
{"title":"AN OVERVIEW OF EDUCATIONAL DATA MINING","authors":"T. Nguyen, Vi Thi Thuy Ha","doi":"10.35382/18594816.1.1.2019.88","DOIUrl":"https://doi.org/10.35382/18594816.1.1.2019.88","url":null,"abstract":"Higher education data is growing, but the exploitation and extraction of meaningful knowledge for management have not been paid much attention. The existing mining tools are not effective. This study aims to introduce three techniques for educational data mining: (1) Classification techniques, (2) Predictive models, (3) Clustering techniques. Simultaneously, the study also proposes some solutions to analyze and visualize data, predict students’ learning capacity and assemble learners. Thereby, education managers could choose appropriate data mining solutions for effective management and training.","PeriodicalId":21692,"journal":{"name":"Scientific Journal of Tra Vinh University","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84441997","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 : 2019-06-13DOI: 10.35382/18594816.1.1.2019.92
Nguyen Nguyen, Thuong Nguyen
This article introduces the method of designing, manufacturing, controlling and monitoring a concrete mixing plant model using Programmable Logic Controller (PLC) - Mitsubishi. The evaluation results show that the model operates stably and easily to replace components. HMI control screen makes it easy for operators to manipulate and change quantities. Successfully manufactured model serves the needs of learning, researching and PLC programming
{"title":"CONTROLLING AND MONITORING CONCRETE MIXING PLANT MODEL USING PLC-MITSUBISHI","authors":"Nguyen Nguyen, Thuong Nguyen","doi":"10.35382/18594816.1.1.2019.92","DOIUrl":"https://doi.org/10.35382/18594816.1.1.2019.92","url":null,"abstract":"This article introduces the method of designing, manufacturing, controlling and monitoring a concrete mixing plant model using Programmable Logic Controller (PLC) - Mitsubishi. The evaluation results show that the model operates stably and easily to replace components. HMI control screen makes it easy for operators to manipulate and change quantities. Successfully manufactured model serves the needs of learning, researching and PLC programming","PeriodicalId":21692,"journal":{"name":"Scientific Journal of Tra Vinh University","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80634883","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 : 2019-06-13DOI: 10.35382/18594816.1.1.2019.97
T. Phan, Tai Tan Phan, Minh Tan Tang
Currently, the gradual scarcity of traditional fuels, the rise of fuel prices and the environmental pollution are social issues of concern. The study is implemented to investigate the efficiency of using solar panel and braking system as recharging sources to a commercially electric motorcycle. The simultaneous combination of the two additionally recharging approaches will help the electric motorcycle to have a longer working distance as compared to original one. The result contributes to exploiting electric motorcycle effectively. In addition, the success of this work will partly contribute to energy saving and reduction of environmental pollution in transportation system.
{"title":"SOLUTION OF ADDITIONAL CHARGING TO ELECTRIC MOTORCYCLES","authors":"T. Phan, Tai Tan Phan, Minh Tan Tang","doi":"10.35382/18594816.1.1.2019.97","DOIUrl":"https://doi.org/10.35382/18594816.1.1.2019.97","url":null,"abstract":"Currently, the gradual scarcity of traditional fuels, the rise of fuel prices and the environmental pollution are social issues of concern. The study is implemented to investigate the efficiency of using solar panel and braking system as recharging sources to a commercially electric motorcycle. The simultaneous combination of the two additionally recharging approaches will help the electric motorcycle to have a longer working distance as compared to original one. The result contributes to exploiting electric motorcycle effectively. In addition, the success of this work will partly contribute to energy saving and reduction of environmental pollution in transportation system.","PeriodicalId":21692,"journal":{"name":"Scientific Journal of Tra Vinh University","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84219572","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 : 2019-06-13DOI: 10.35382/18594816.1.1.2019.91
H. Ngo, Banh Thanh Huynh
Car lighting system is a necessary means that helps drivers to observe in limited visibility conditions, the lighting system is also used to inform the movement situation so that people around can recognize in the night. In addition, the system also has the function of displaying the automobile operating parameters to the driver through the tableau panel and illuminating the space in the automobile. In cars, in order for the lighting system to work, the driver must turn on the light switch and make a continuous transition between hight beam and low beam when the car is operating in the city or when there is a vehicle moving in the opposite direction. To reduce unnecessary operations when controlling the lighting system, it is necessary to have a design which installed automatic hight-low beam control system. The paper presents the design, calculation and installation of electrical circuits that control the automatic hight-low beam transition on automobile by LabVIEW software and applies this experiment on a real model.
{"title":"DESIGN OF AUTOMATIC HIGHT-LOW BEAM CONTROL SYSTEM ON AUTOMOBILE","authors":"H. Ngo, Banh Thanh Huynh","doi":"10.35382/18594816.1.1.2019.91","DOIUrl":"https://doi.org/10.35382/18594816.1.1.2019.91","url":null,"abstract":"Car lighting system is a necessary means that helps drivers to observe in limited visibility conditions, the lighting system is also used to inform the movement situation so that people around can recognize in the night. In addition, the system also has the function of displaying the automobile operating parameters to the driver through the tableau panel and illuminating the space in the automobile. In cars, in order for the lighting system to work, the driver must turn on the light switch and make a continuous transition between hight beam and low beam when the car is operating in the city or when there is a vehicle moving in the opposite direction. To reduce unnecessary operations when controlling the lighting system, it is necessary to have a design which installed automatic hight-low beam control system. The paper presents the design, calculation and installation of electrical circuits that control the automatic hight-low beam transition on automobile by LabVIEW software and applies this experiment on a real model.","PeriodicalId":21692,"journal":{"name":"Scientific Journal of Tra Vinh University","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90438714","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 : 2019-06-13DOI: 10.35382/18594816.1.1.2019.85
Quoc Khac Nguyen, S. Nguyen
Building a system of data visualization of pig herds in Tra Vinh province based on GIS (Geographic Information System) will help management agencies update, do statistical analysis of and forecast the fluctuation in pig herds within the provincial area. Since then, pig farmers will have reliable information, which canmake their investment more efficient. The system is built on the WebGIS platform combining solutions for processing map data with PostGIS - an extension of PostgreSQL database management system to manage GIS objects. Additionally, the system will also provide solutions to handle and share pig herd data on the map with Geoserver - an open source server with the aim of connecting geographic information from PostGIS to Geoweb.
{"title":"DATA VISUALIZATION FOR PIG HERDS IN TRA VINH PROVINCE BASED ON GEOGRAPHIC INFORMATION SYSTEM (GIS)","authors":"Quoc Khac Nguyen, S. Nguyen","doi":"10.35382/18594816.1.1.2019.85","DOIUrl":"https://doi.org/10.35382/18594816.1.1.2019.85","url":null,"abstract":"Building a system of data visualization of pig herds in Tra Vinh province based on GIS (Geographic Information System) will help management agencies update, do statistical analysis of and forecast the fluctuation in pig herds within the provincial area. Since then, pig farmers will have reliable information, which canmake their investment more efficient. The system is built on the WebGIS platform combining solutions for processing map data with PostGIS - an extension of PostgreSQL database management system to manage GIS objects. Additionally, the system will also provide solutions to handle and share pig herd data on the map with Geoserver - an open source server with the aim of connecting geographic information from PostGIS to Geoweb.","PeriodicalId":21692,"journal":{"name":"Scientific Journal of Tra Vinh University","volume":"130 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88774942","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 : 2019-06-13DOI: 10.35382/18594816.1.1.2019.86
T. Nguyen, Dinh Q. Phung
The article presents solutions to support students in planning their learning. The existing educational data sources are derived from student information management system (learning results, training programs, schedules) used as a basic for exploring, analyzing and proposing suitable suggestions for each student (list of subjects that need to improve, relearning schedules, list of students who want to improve their learning results in the same subjects). The research results are a system that supports students searching their learning results as well as suggesting them the direction of improving subject scores. The system is to reach 100% accuracy in accordance with the training data of the Information Technology students, courses 2015 and 2017 at Tra Vinh University.
{"title":"AN APPROACH TO EXPLORING EDUCATIONAL DATA","authors":"T. Nguyen, Dinh Q. Phung","doi":"10.35382/18594816.1.1.2019.86","DOIUrl":"https://doi.org/10.35382/18594816.1.1.2019.86","url":null,"abstract":"The article presents solutions to support students in planning their learning. The existing educational data sources are derived from student information management system (learning results, training programs, schedules) used as a basic for exploring, analyzing and proposing suitable suggestions for each student (list of subjects that need to improve, relearning schedules, list of students who want to improve their learning results in the same subjects). The research results are a system that supports students searching their learning results as well as suggesting them the direction of improving subject scores. The system is to reach 100% accuracy in accordance with the training data of the Information Technology students, courses 2015 and 2017 at Tra Vinh University.","PeriodicalId":21692,"journal":{"name":"Scientific Journal of Tra Vinh University","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82459119","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 : 2019-06-13DOI: 10.35382/18594816.1.1.2019.90
Banh Thanh Huynh, Tai Tan Phan
This report aims to introduce a solution for saving fuel and reducing environmental pollution on motorcycles in order to increase the operational capacity of a very popular means of transport in Vietnam today. In this solution, we use an electric motorbike which is combined with a heat engine to meet the requirements of increasing vehicle performance. The article presents the methods to design, to install the parts of the system and the heat engine on electric motorbike as well as experiment and evaluate the effectiveness of the solution
{"title":"SOLUTION FOR SAVING ENERGY AND REDUCING ENVIRONMENTAL POLLUTION ON MOTORCYCLES","authors":"Banh Thanh Huynh, Tai Tan Phan","doi":"10.35382/18594816.1.1.2019.90","DOIUrl":"https://doi.org/10.35382/18594816.1.1.2019.90","url":null,"abstract":"This report aims to introduce a solution for saving fuel and reducing environmental pollution on motorcycles in order to increase the operational capacity of a very popular means of transport in Vietnam today. In this solution, we use an electric motorbike which is combined with a heat engine to meet the requirements of increasing vehicle performance. The article presents the methods to design, to install the parts of the system and the heat engine on electric motorbike as well as experiment and evaluate the effectiveness of the solution","PeriodicalId":21692,"journal":{"name":"Scientific Journal of Tra Vinh University","volume":"80 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73672955","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 : 2019-06-13DOI: 10.35382/18594816.1.1.2019.95
T. Nguyen
Today, raw material mixing systems are very popular in factories and manufacturing enterprises: cement, food processing, fertilizer,. . .The system of raw material mixers, in meeting that demand, must ensure the quality of the products. The objective of this article is to program the raw material mixing station using the S7-1200 PLC in combination with the control and supervising of the mixing and filling system by Webserver. The system performs the work of dividing the rate for each batch of mixing, material supplying, material mixing and extracting finished products. In addition, the author has rebuilt the plant model with a compact scale that suitable for the teaching or professional research purpose. The process of system programming is written on the TIA Portal V13 software ofSiemens agency and is operated on the HMI control screen as well as directly monitored on the Webserver. The results show that the stable running model produces good product, the system is operated and monitored accurately via webserver application designed by the author.
{"title":"CONTROLLING AND SUPERVISING THE MIXING SYSTEM USING PLC S7-1200 AND WEBSERVER","authors":"T. Nguyen","doi":"10.35382/18594816.1.1.2019.95","DOIUrl":"https://doi.org/10.35382/18594816.1.1.2019.95","url":null,"abstract":"Today, raw material mixing systems are very popular in factories and manufacturing enterprises: cement, food processing, fertilizer,. . .The system of raw material mixers, in meeting that demand, must ensure the quality of the products. The objective of this article is to program the raw material mixing station using the S7-1200 PLC in combination with the control and supervising of the mixing and filling system by Webserver. The system performs the work of dividing the rate for each batch of mixing, material supplying, material mixing and extracting finished products. In addition, the author has rebuilt the plant model with a compact scale that suitable for the teaching or professional research purpose. The process of system programming is written on the TIA Portal V13 software ofSiemens agency and is operated on the HMI control screen as well as directly monitored on the Webserver. The results show that the stable running model produces good product, the system is operated and monitored accurately via webserver application designed by the author.","PeriodicalId":21692,"journal":{"name":"Scientific Journal of Tra Vinh University","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85665900","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 : 2019-06-13DOI: 10.35382/18594816.1.1.2019.93
T. Nguyen, D. Nguyen
Robots imitating spider’s moving have many advantages such as flexible movement, high stability, diversity in movements performed, especially in terrain crossing, in military reconnaissance, in surveying and collecting environmental data in dangerous areas,.... In this article with the main objective is to exploit multiple control methods to support applications of a spider robot with low-cost, a spider robot with 6 legs and 18 joints was designed. The ESPWROOM-32 module (ESP32-D0WDQ6 chip) and MIT App Inventor were used as the main tools for conducting this research. As a result, the robot is controlled via Bluetooth and Wifi to move, making some actions by self-written software running on the Android operating system. In addition, the robot has the capacity of self-propelled to avoid simple obstacles and send some environmental parameters to the software, including obstacles distance, humidity and temperature.
{"title":"DESIGN AND CONTROL OF SPIDER ROBOT MODEL","authors":"T. Nguyen, D. Nguyen","doi":"10.35382/18594816.1.1.2019.93","DOIUrl":"https://doi.org/10.35382/18594816.1.1.2019.93","url":null,"abstract":"Robots imitating spider’s moving have many advantages such as flexible movement, high stability, diversity in movements performed, especially in terrain crossing, in military reconnaissance, in surveying and collecting environmental data in dangerous areas,.... In this article with the main objective is to exploit multiple control methods to support applications of a spider robot with low-cost, a spider robot with 6 legs and 18 joints was designed. The ESPWROOM-32 module (ESP32-D0WDQ6 chip) and MIT App Inventor were used as the main tools for conducting this research. As a result, the robot is controlled via Bluetooth and Wifi to move, making some actions by self-written software running on the Android operating system. In addition, the robot has the capacity of self-propelled to avoid simple obstacles and send some environmental parameters to the software, including obstacles distance, humidity and temperature.","PeriodicalId":21692,"journal":{"name":"Scientific Journal of Tra Vinh University","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89435306","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 : 2019-06-13DOI: 10.35382/18594816.1.1.2019.84
Phuc Minh Nhan, Thien Hoang Duy Nguyen
For open source software such as Firefox, Eclipse, Subversion,. . . they usually have a system for bug management that sent by users. These bug reports help the system identify various software bugs which makes software maintenance better. However, a situation occurs that there are many error reports sent to the processing repository that these bug reports were previously reported by different users, this is called duplicate bug reports. In this paper, we introduce a multi-feature model combined with weighted improvements from CFC (ClassFeature-Centroid) to detect duplicate bug reportsautomatically. We have experimented on three projects of Mozilla, Eclipse and OpenOffice. The results show that our method can improve 8-12% better as compared to the compared methods.
{"title":"MULTI-FEATURE MODEL FOR DUPLICATE BUG REPORTS DETECTION SOLUTION","authors":"Phuc Minh Nhan, Thien Hoang Duy Nguyen","doi":"10.35382/18594816.1.1.2019.84","DOIUrl":"https://doi.org/10.35382/18594816.1.1.2019.84","url":null,"abstract":"For open source software such as Firefox, Eclipse, Subversion,. . . they usually have a system for bug management that sent by users. These bug reports help the system identify various software bugs which makes software maintenance better. However, a situation occurs that there are many error reports sent to the processing repository that these bug reports were previously reported by different users, this is called duplicate bug reports. In this paper, we introduce a multi-feature model combined with weighted improvements from CFC (ClassFeature-Centroid) to detect duplicate bug reportsautomatically. We have experimented on three projects of Mozilla, Eclipse and OpenOffice. The results show that our method can improve 8-12% better as compared to the compared methods.","PeriodicalId":21692,"journal":{"name":"Scientific Journal of Tra Vinh University","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88728359","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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