Pub Date : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559779
Auttanit Wongjak
Programming classes are now commonly found at both the high school and university levels. However, when learning this field, the copying program code problem is always a big issue. As a result, the author comes up with the idea of developing software that can compare the similarity of text as a group to determine the program code's similarity. A dynamic programming (DP) approach can solve the text comparison problem, which is also known as the Longest Common Subsequence (LCS) problem. To decrease the number of comparison characters, a grouping algorithm was introduced, and a token table was employed. The program can function as intended after the development is completed. Which can be used to compare and group file. With the grouping method presented, the number of comparisons was decreased. The number of the text to be compared was reduced by an average of 33.58 percent, making the program more efficient.
{"title":"Text Compare and Grouping Program using Dynamic Programming Algorithm","authors":"Auttanit Wongjak","doi":"10.1109/RI2C51727.2021.9559779","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559779","url":null,"abstract":"Programming classes are now commonly found at both the high school and university levels. However, when learning this field, the copying program code problem is always a big issue. As a result, the author comes up with the idea of developing software that can compare the similarity of text as a group to determine the program code's similarity. A dynamic programming (DP) approach can solve the text comparison problem, which is also known as the Longest Common Subsequence (LCS) problem. To decrease the number of comparison characters, a grouping algorithm was introduced, and a token table was employed. The program can function as intended after the development is completed. Which can be used to compare and group file. With the grouping method presented, the number of comparisons was decreased. The number of the text to be compared was reduced by an average of 33.58 percent, making the program more efficient.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134523550","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559785
Sakchai Chaiyarak, P. Nilsook, P. Wannapiroon
The modern world’s social systems are rapidly becoming more complex and humans need to adapt their learning strategies due to the development of advanced technology, such as artificial intelligence (AI), the internet of things (IoT) and virtual technology. Intelligent technology is able to promote smart modern education. This research aims to present the results of synthetic and intelligent virtual universal learning platforms. It consists of a review of universal designs for learning, intelligent learning systems and the virtual learning environment. The results of the research are as follows. An intelligent virtual universal learning model has three core components: the first is a universal learning process, the second is an intelligent learning system and the third is a virtual learning environment. Each section contains details of the sub-elements as follows: the universal learning process has three components: 1) engagement of the learners (Engagement); 2) clarification or demonstration of knowledge (Representation); and 3) the actions and expressions of the learners (Action and Expression). Each of these components has three sequences: access, build and internalize. An intelligent learning system has four components: 1) an intelligent learning system, 2) an automatic learners analysis system, 3) an intelligent knowledge presentation system and 4) an intelligent suggestion system. Finally, the virtual learning environment has five components: 1) virtual contents, 2) virtual learning activities, 3) virtual learners’ interaction, 4) virtual media and resources, and 5) virtual assessments.
{"title":"An empirical study of intelligent virtual universal learning platforms","authors":"Sakchai Chaiyarak, P. Nilsook, P. Wannapiroon","doi":"10.1109/RI2C51727.2021.9559785","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559785","url":null,"abstract":"The modern world’s social systems are rapidly becoming more complex and humans need to adapt their learning strategies due to the development of advanced technology, such as artificial intelligence (AI), the internet of things (IoT) and virtual technology. Intelligent technology is able to promote smart modern education. This research aims to present the results of synthetic and intelligent virtual universal learning platforms. It consists of a review of universal designs for learning, intelligent learning systems and the virtual learning environment. The results of the research are as follows. An intelligent virtual universal learning model has three core components: the first is a universal learning process, the second is an intelligent learning system and the third is a virtual learning environment. Each section contains details of the sub-elements as follows: the universal learning process has three components: 1) engagement of the learners (Engagement); 2) clarification or demonstration of knowledge (Representation); and 3) the actions and expressions of the learners (Action and Expression). Each of these components has three sequences: access, build and internalize. An intelligent learning system has four components: 1) an intelligent learning system, 2) an automatic learners analysis system, 3) an intelligent knowledge presentation system and 4) an intelligent suggestion system. Finally, the virtual learning environment has five components: 1) virtual contents, 2) virtual learning activities, 3) virtual learners’ interaction, 4) virtual media and resources, and 5) virtual assessments.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122678920","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}
Security baseline hardening is a baseline configuration framework aims to improve the robustness of the operating system, lowering the risk and impact of breach incidents. In typical best practice, the security baseline hardening requires to have regular check and follow-up to keep the system in-check, this set of activities are called "Security Baseline Audit". The Security Baseline Audit process is responsible by the IT department. In terms of business, this process consumes a fair number of resources such as man-hour, time, and technical knowledge. In a huge production environment, the resources mentioned can be multiplied by the system's amount in the production environment. This research proposes improving the process with automation while maintaining the quality and security level at the standard. Robot Framework, a useful and flexible opensource automation framework, is being utilized in this research following with a very successful result where the configuration is aligned with CIS (Center for Internet Security) run by the automation process. A tremendous amount of time and process are decreased while the configuration is according to this tool's standard.
{"title":"Low Cost Automated OS Security Audit Platform Using Robot Framework","authors":"Hachol Dabthong, Maykin Warasart, Phongsaphat Duma, Pongpat Rakdej, Natt Majaroen, W. Lilakiatsakun","doi":"10.1109/RI2C51727.2021.9559826","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559826","url":null,"abstract":"Security baseline hardening is a baseline configuration framework aims to improve the robustness of the operating system, lowering the risk and impact of breach incidents. In typical best practice, the security baseline hardening requires to have regular check and follow-up to keep the system in-check, this set of activities are called \"Security Baseline Audit\". The Security Baseline Audit process is responsible by the IT department. In terms of business, this process consumes a fair number of resources such as man-hour, time, and technical knowledge. In a huge production environment, the resources mentioned can be multiplied by the system's amount in the production environment. This research proposes improving the process with automation while maintaining the quality and security level at the standard. Robot Framework, a useful and flexible opensource automation framework, is being utilized in this research following with a very successful result where the configuration is aligned with CIS (Center for Internet Security) run by the automation process. A tremendous amount of time and process are decreased while the configuration is according to this tool's standard.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115183205","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559796
Akksatcha Duangsuphasin, Preecha Rungsaksangmanee, A. Kengpol, K. Elfvengren
The objective of this research is to develop a decision support framework using deep learning methods to select passion fruit for the ageing society. Many substances present in passion fruit such as vitamin A, vitamin C, and vitamin E can contribute to beneficial effects in our body. Especially, it could help to reduce the risk of cardiovascular diseases suitable for the ageing society. It is expected that 4-age levels of passion fruit for three groups of ageing society can be classified and suggested by using multi-layer perceptron neural network (MLPNN) architectures in Python program. The implications of the study are that selecting age levels of passion fruit is appropriate for three ageing society groups. The deep neural network model can generate the accuracy of a trained dataset is 73.9 % and a tested dataset is 72.5%. This model is used to create the computer software which is convenient for the selection of passion fruit or other fruits for the fruit juice industry.
{"title":"The Development of Deep Learning Methods to Select Passion Fruit for the Ageing Society","authors":"Akksatcha Duangsuphasin, Preecha Rungsaksangmanee, A. Kengpol, K. Elfvengren","doi":"10.1109/RI2C51727.2021.9559796","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559796","url":null,"abstract":"The objective of this research is to develop a decision support framework using deep learning methods to select passion fruit for the ageing society. Many substances present in passion fruit such as vitamin A, vitamin C, and vitamin E can contribute to beneficial effects in our body. Especially, it could help to reduce the risk of cardiovascular diseases suitable for the ageing society. It is expected that 4-age levels of passion fruit for three groups of ageing society can be classified and suggested by using multi-layer perceptron neural network (MLPNN) architectures in Python program. The implications of the study are that selecting age levels of passion fruit is appropriate for three ageing society groups. The deep neural network model can generate the accuracy of a trained dataset is 73.9 % and a tested dataset is 72.5%. This model is used to create the computer software which is convenient for the selection of passion fruit or other fruits for the fruit juice industry.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128054000","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559778
Parham Karimi, R. Gavagsaz-Ghoachani, M. Phattanasak
A story is a narrative that has a long history of conveying concepts. In addition, the image makes the content more memorable. The combination of story and image forms the comic story. The use of comic stories in education may enhance the attractiveness and durability of the transmission of scientific concepts. It requires special conditions to apply this kind of story at a high educational level. These conditions include the qualitative conditions and the place of use of the comic story. Appropriate scientific content, outward attractiveness, and proper characterization are essential points in designing scientifically comic stories. In addition, the strengths, weaknesses, and position of using comic fiction are essential factors in the effectiveness of comic stories. In this paper, field study and analysis of public feedback are used to determine the framework for using comic narratives at the higher education level. For this purpose, a scientific comic story is designed based on the project of simulating the power of a hybrid car in MATLAB. The scientific comic story is formed through PowerPoint software. The Comic story is presented in an undergraduate classroom in mechanical engineering. Then the students' feedback on the story is recorded. Students find that this method is effective and appropriate for presenting, teaching, and publishing in educational journals. Additionally, the diversity of content is one of the strengths of this method. Lack of focus on detail is also one of the weaknesses of this method. Based on the feedback received, this method makes the audience attracted to continue the content. It also raises questions in students' minds. For these reasons, it is suggested that this method be used more in pre-study.
{"title":"Investigating the transfer of scientific content with the help of comic stories at a level of higher education","authors":"Parham Karimi, R. Gavagsaz-Ghoachani, M. Phattanasak","doi":"10.1109/RI2C51727.2021.9559778","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559778","url":null,"abstract":"A story is a narrative that has a long history of conveying concepts. In addition, the image makes the content more memorable. The combination of story and image forms the comic story. The use of comic stories in education may enhance the attractiveness and durability of the transmission of scientific concepts. It requires special conditions to apply this kind of story at a high educational level. These conditions include the qualitative conditions and the place of use of the comic story. Appropriate scientific content, outward attractiveness, and proper characterization are essential points in designing scientifically comic stories. In addition, the strengths, weaknesses, and position of using comic fiction are essential factors in the effectiveness of comic stories. In this paper, field study and analysis of public feedback are used to determine the framework for using comic narratives at the higher education level. For this purpose, a scientific comic story is designed based on the project of simulating the power of a hybrid car in MATLAB. The scientific comic story is formed through PowerPoint software. The Comic story is presented in an undergraduate classroom in mechanical engineering. Then the students' feedback on the story is recorded. Students find that this method is effective and appropriate for presenting, teaching, and publishing in educational journals. Additionally, the diversity of content is one of the strengths of this method. Lack of focus on detail is also one of the weaknesses of this method. Based on the feedback received, this method makes the audience attracted to continue the content. It also raises questions in students' minds. For these reasons, it is suggested that this method be used more in pre-study.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"387 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124793021","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559815
Mohammad Afkar, R. Gavagsaz-Ghoachani, M. Phattanasak, S. Pierfederici
Ensuring the stable points of a system is of great importance. In this paper, the stability analysis of a modular system is investigated using a large-signal average modeling. This is possible by determining the Jacobian matrix and then the system eigenvalues. The model for a two-module structure based on a three-level boost converter are applied. This studied structure is used with a controller to balance the voltages in the system. To implement the model, the equations of the system, including the stage power and the controller, are considered. It is also possible to study the robustness of the system when the system parameters are variable or uncertain. Simulation results using MATLAB/Simulink are presented. The robust properties of the system are investigated by studying the eigenvalues of the Jacobin matrix when the inductance and capacitance values change. It is observed that all eigenvalues have a negative real value. This ensures system stability for system parameters variations.
{"title":"Stability and robustness investigation of a modular system using a large-signal average model","authors":"Mohammad Afkar, R. Gavagsaz-Ghoachani, M. Phattanasak, S. Pierfederici","doi":"10.1109/RI2C51727.2021.9559815","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559815","url":null,"abstract":"Ensuring the stable points of a system is of great importance. In this paper, the stability analysis of a modular system is investigated using a large-signal average modeling. This is possible by determining the Jacobian matrix and then the system eigenvalues. The model for a two-module structure based on a three-level boost converter are applied. This studied structure is used with a controller to balance the voltages in the system. To implement the model, the equations of the system, including the stage power and the controller, are considered. It is also possible to study the robustness of the system when the system parameters are variable or uncertain. Simulation results using MATLAB/Simulink are presented. The robust properties of the system are investigated by studying the eigenvalues of the Jacobin matrix when the inductance and capacitance values change. It is observed that all eigenvalues have a negative real value. This ensures system stability for system parameters variations.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126411702","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559819
S. Kittiwittayapong, D. Torrungrueng, K. Phaebua, T. Lertwiriyaprapa, P. Akkaraekthalin, Kitiphon Sukprecha
This paper presents a novel design of miniaturized wideband impedance transformers using quarter-wave-like transformers (QWLTs), implemented by asymmetric compact microstrip resonant cells (CMRCs). For illustration, the binomial matching transformers are employed for wideband impedance matching, and they are implemented using asymmetric CMRCs in cascade. It is found that the total size reduction of about 58% can be achieved by using the novel design, compared with that of the conventional binomial impedance matching circuit, with acceptable impedance bandwidth performance.
{"title":"Wideband Impedance Matching Using Quarter-Wave-Like-Transformers Implemented by Asymmetric Compact Microstrip Resonant Cells","authors":"S. Kittiwittayapong, D. Torrungrueng, K. Phaebua, T. Lertwiriyaprapa, P. Akkaraekthalin, Kitiphon Sukprecha","doi":"10.1109/RI2C51727.2021.9559819","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559819","url":null,"abstract":"This paper presents a novel design of miniaturized wideband impedance transformers using quarter-wave-like transformers (QWLTs), implemented by asymmetric compact microstrip resonant cells (CMRCs). For illustration, the binomial matching transformers are employed for wideband impedance matching, and they are implemented using asymmetric CMRCs in cascade. It is found that the total size reduction of about 58% can be achieved by using the novel design, compared with that of the conventional binomial impedance matching circuit, with acceptable impedance bandwidth performance.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"1953 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129534882","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559745
K. Ugsornrat, Triwit Phurksasukkasem, A. Sappat, C. Sriprachuabwong, C. Karuwan, A. Tuantranont
This research studied the development of mini-potentiostat for portable electrochemical measurement. The mini-potentiostat was fabricated for analysis of electrochemical values with substances in low concentrations to use with lab on a chip. The mini-potentiostat was designed by using electronic circuits and fabricated from integrated circuits and controlled by microcontrollers. The lab on a chip was designed to be T-shaped and uses digital microfluidics for acting on microfluid to move the liquid droplets to electrochemical sensor of lab on a chip. The sensor consists of screen-printing electrodes: a graphene-carbon paste working and counter electrodes and a silver/silver chloride paste reference electrode. The electrochemical electrodes were fabricated by screen printing methods. The mini-potentiostat was calibrated to test for electrochemical sensor. For analysis, the lab on a chip was tested using low concentration, using potassium hexacyanoferrate and varying concentration of minimal reagent consumption from 200 mM to 1000 mM with increment of 200 mM. This mini-potentiostat can distinguish the concentration of substances with low concentrations effectively
{"title":"Mini-Potentiostat for Low Power Chemical Sensing of Graphene-Carbon Paste Lab on a Chip","authors":"K. Ugsornrat, Triwit Phurksasukkasem, A. Sappat, C. Sriprachuabwong, C. Karuwan, A. Tuantranont","doi":"10.1109/RI2C51727.2021.9559745","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559745","url":null,"abstract":"This research studied the development of mini-potentiostat for portable electrochemical measurement. The mini-potentiostat was fabricated for analysis of electrochemical values with substances in low concentrations to use with lab on a chip. The mini-potentiostat was designed by using electronic circuits and fabricated from integrated circuits and controlled by microcontrollers. The lab on a chip was designed to be T-shaped and uses digital microfluidics for acting on microfluid to move the liquid droplets to electrochemical sensor of lab on a chip. The sensor consists of screen-printing electrodes: a graphene-carbon paste working and counter electrodes and a silver/silver chloride paste reference electrode. The electrochemical electrodes were fabricated by screen printing methods. The mini-potentiostat was calibrated to test for electrochemical sensor. For analysis, the lab on a chip was tested using low concentration, using potassium hexacyanoferrate and varying concentration of minimal reagent consumption from 200 mM to 1000 mM with increment of 200 mM. This mini-potentiostat can distinguish the concentration of substances with low concentrations effectively","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125142685","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559782
Nirach Romyen, Sureeporn Nualnim, Maleerat Maliyaem, H. Unger
As part of natural language processing, sentiment analysis intends to investigate the author's emotions while writing a given text. This paper proposes a new method that uses a co-occurrence graph that can be automatically extended in a background reading (and learning) process, when a person's additional text source is available. The proposed method applies the concepts of PageRank to find the sentiment value of a considered node depending on the sentiment value of predecessor nodes that point to it and iteratively process those values in the same manner. The experiment results showed that 1) the methods described converge and 2) from a few, initially labelled positive (good) and negative (bad) words precise sentiment values for other words can be obtained, which corresponds to the authors emotions.
{"title":"Learning Sentiments using Co-occurrence Analysis","authors":"Nirach Romyen, Sureeporn Nualnim, Maleerat Maliyaem, H. Unger","doi":"10.1109/RI2C51727.2021.9559782","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559782","url":null,"abstract":"As part of natural language processing, sentiment analysis intends to investigate the author's emotions while writing a given text. This paper proposes a new method that uses a co-occurrence graph that can be automatically extended in a background reading (and learning) process, when a person's additional text source is available. The proposed method applies the concepts of PageRank to find the sentiment value of a considered node depending on the sentiment value of predecessor nodes that point to it and iteratively process those values in the same manner. The experiment results showed that 1) the methods described converge and 2) from a few, initially labelled positive (good) and negative (bad) words precise sentiment values for other words can be obtained, which corresponds to the authors emotions.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"20 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123272701","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559790
B. Yodwong, D. Guilbert, W. Kaewmanee, M. Phattanasak, M. Hinaje, G. Vitale
The purpose of this paper is to propose a three-level interleaved DC-DC buck converter with a modified sliding mode-based control complying with the performance requirements for a proton exchange membrane (PEM) electrolyzer applications. The proposed and realized three-level interleaved DC-DC buck converter features an improved step-down ratio and low output current ripple. The design of modified sliding mode-based control and the experimental results of the studied system are presented and discussed. Thanks to the robustness of the controller, the electrolyzer current correctly follows its reference with respect to the uncertainty parameters. Moreover, the voltage balancing of the two capacitors at the converter's input side is taken into account by the control system.
{"title":"Modified Sliding Mode-Based Control of a Three-Level Interleaved DC-DC Buck Converter for Proton Exchange Membrane Water Electrolysis","authors":"B. Yodwong, D. Guilbert, W. Kaewmanee, M. Phattanasak, M. Hinaje, G. Vitale","doi":"10.1109/RI2C51727.2021.9559790","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559790","url":null,"abstract":"The purpose of this paper is to propose a three-level interleaved DC-DC buck converter with a modified sliding mode-based control complying with the performance requirements for a proton exchange membrane (PEM) electrolyzer applications. The proposed and realized three-level interleaved DC-DC buck converter features an improved step-down ratio and low output current ripple. The design of modified sliding mode-based control and the experimental results of the studied system are presented and discussed. Thanks to the robustness of the controller, the electrolyzer current correctly follows its reference with respect to the uncertainty parameters. Moreover, the voltage balancing of the two capacitors at the converter's input side is taken into account by the control system.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123040446","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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