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Design of BCI motor imagery classification using WPT-CSP and CNN

AIP Conference Proceedings 2022年第1期2537卷

作者： Dio Alif Pradana Basari 1Biomedical Engineering Study Program Department of Electrical Engineering Faculty of Engineering Universitas Indonesia Kampus UI Depok West Java 16424 Indonesia 2Research Center for Biomedical Engineering Faculty of Engineering Universitas Indonesia Kampus UI Depok West Java 16424 Indonesia

This study proposes a new method in an electroencephalograph (EEG)-based Brain-Computer Interface (BCI) that can directly utilize brain signals to control external devices. The motor Imagery (MI) signal, which contains an image of a certain limb movement, is generally used in BCI. It does not need direct movements. The implementation of MI-EEG signal into BCI still experiences major issues because the patterns obtained for each recording can vary from one another even though they have the same type of motion. In this study, we utilized the Wavelet Packet Transform (WPT) method to decompose the EEG signal into specific sub-band frequencies and Common Spatial Pattern (CSP) as a spatial filter to increase the spatial resolution of the EEG signal. The Convolutional Neural Network (CNN) was subsequently selected for training from the classifier. Next, the results of the training were used to classify the movements of the given MI-EEG. We evaluated the model using dataset 2a from Brain-Computer Interface Competition (BCIC) IV. The results of this method showed the increase in the accuracy of 32% and in Kappa up to 0.42 and the decrease in Root Mean Square Error (RMSE) up to 1.21, compared with only using CNN as the classifier. These results showed fairly good performance compared to other methods used previously in dataset 2a from BCIC IV.

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Android Based Heart-rate Monitoring System using ECG Sensor

Android Based Heart-rate Monitoring System using ECG Sensor

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International Conference on Sustainable engineering and Creative Computing (ICSECC)

作者： Rosalina Grace Selina Rila Mandala Faculty of Computing Information Technology Study Program President University Bekasi Indonesia School of Electrical Engineering and Informatics Bandung Institute of Technology Bandung Indonesia

ISBN: (纸本)9781728175898

This research aims to help the user monitor their heart’s condition and notify other people in case of an emergency due to an abnormal heartbeat (normal heartbeat around 60-100 beats per minute). From the heart rate graph, the user could do a consultation with an expert in the nearest hospital using a map feature that will show the nearest hospital with a 1 KM radius from the user’s current location. The heart is undeniably an essential part of the human body system. The heart's missions are to pump blood to the lungs to expel the waste carbon dioxide that resulted from the respiration and pump blood that will deliver oxygen throughout the human body's circulation system. While the blood that carries oxygen being pumped throughout the human body, the heart will provide the oxygen to all cells. Body cells need to use oxygen to get the energy from food through a process called cellular respiration. Monitoring our heartbeat and pulse rate can increase people’s awareness about their heart’s health, motivating, and encouraging people to maintain a healthy eating plan and exercise. This research will be implemented ECG Sensor. The sensor will then send the data to the android application via HC-06 Bluetooth module. Monitoring the heart rate and analyzing the user’s heartbeat will be done in the android with a microcontroller device's help.

关键词： Bluetooth Heart beat Hospitals Microcontrollers Lung Electrocardiography Biomedical monitoring

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Developing the Indonesian Qualifications Framework's descriptors for electrical engineering as the basis of the Recognition of Prior Learning (RPL)

Developing the Indonesian Qualifications Framework's descrip...

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International Conference on electrical, Electronic, Informatics and Vocational education 2018, ICE-ELINVO 2018

作者： Zamtinah Supriyadi, E. Electrical Engineering Education Study Program Faculty of Engineering Yogyakarta State University Indonesia

This study aims to: 1) describe the mechanism of the level 2 IQF (the Indonesian Qualifications Framework) descriptor development for electrical engineering, and 2) formulate a set of detailed-level-2 descriptors for electrical engineering. The method used to develop the descriptors is brainstorming between the researcher and several experts from both academicians and practitioners. Meanwhile, the method to formulate the IQF descriptors for electrical engineering is literature review referring to The Indonesian National Work Competency Standard (SKKNI) and focus group discussion involving experts from academicians, Professional Certification Institute Gema PDKB, the Association of Indonesian electrical Works (APEI), Consortium for electrical Installation Safety (KONSUIL), and industry practitioners such as PT. LEN Bandung, PT. Bukaka Teknik Utama, PT. Schneider Electric Indonesia, and PT. Smart Energi Semesta. The descriptors are in the form of the guttman scale questionnaire. The questionnaire was then tested on limited-scale respondents. The KR 20 method was employed to examine the reliability and resulted in r11 = 0.9;thus, the guttman scale questionnaire was considered "very reliable". The respondents consisted of 8 academicians, 8 electrical engineering teachers at vocational high schools, and 8 industrial practitioners. The collected data were then analyzed descriptively. This study resulted in a set of level 2 IQF descriptors which were designed according to the taxonomy of electricity system, namely electric power transmission system descriptors, electric power distribution system descriptors, and electric power utilization descriptors. In regard to electric power transmission system, 103 out of 154 (67%) descriptors were approved by more than 80% of respondents;for electric power distribution system, 83 descriptors (75%) were approved by more than 80% of respondents;and for electric power utilization system, 61 descriptors (94%) were approved by more than 8

关键词： Surveys

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A simple approach for curcumin extraction from turmeric roots

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AIP Conference Proceedings 2022年第1期2537卷 040016页

作者： Siti Fauziyah Rahman Adella Josephin Ridha Alviny Syakirah Grace Priscilla Nadia Wulandari Nurul Intan Yudan Whulanza Biomedical Engineering Study Program Department of Electrical Engineering Faculty of Engineering Universitas Indonesia Kampus UI Depok West Java 16424 Indonesia Research Center for Biomedical Engineering Faculty of Engineering Universitas Indonesia Kampus UI Depok West Java 16424 Indonesia Department of Mechanical Engineering Faculty of Engineering Universitas Indonesia Kampus UI Depok West Java 16424 Indonesia

Turmeric, particularly its most active ingredient, curcumin, has a long list of scientifically documented health advantages, including the ability to boost heart health and protect against a variety of diseases. Curcumin is one of the most important active components in turmeric, with a wide range of bioactivity and medicinal uses. Preparing samples from biological components is a time-consuming and difficult operation. This study aims to understand the process of extracting curcumin from turmeric and to analyze the appropriate solvent for curcumin extraction. The method used is Soxhlet extraction with acetone and ethanol as solvents. The analysis of curcumin content was carried out using a UV-Vis spectrophotometer. The results showed that the curcumin extracted with acetone solvent had a higher concentration than the extraction with ethanol. Therefore, extracting curcumin from turmeric using the Soxhlet method, acetone is a superior solvent than ethanol.

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Technological perspective on innovation, development and change in response to Covid-19: A scientometric research

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AIP Conference Proceedings 2023年第1期2646卷

作者： S. R. Mubaroq A. G. Abdullah A. Setiawan I. Widiaty M. A. Dhina Technical and Vocational Education Program Graduate School Universitas Pendidikan Indonesia Bandung Indonesia Department of Electrical Engineering Education Universitas Pendidikan Indonesia Bandung Indonesia Department of Mechanical Engineering Education Universitas Pendidikan Indonesia Bandung Indonesia Department of Family Welfare Education Universitas Pendidikan Indonesia Bandung Indonesia Faculty of Mathematics and Natural Sciences Universitas Al-Ghifari Bandung Indonesia

This research aims to obtain an overview of innovation, development and change in response to Covid-19 *** schools, especially from a technology perspective. Thus, a foothold is obtained in developing and improving educational models in vocational education during the post-pandemic with a two-sided approach, namely social and technical. This research uses a scientometrics approach, that uses data from the Clarivate Analytics' Web of Science (WOS) Core Collection and the Scopus Elsevier database. Data analysis was performed using VOSviewer (version 1.6.13) and Histcite. The results of the analysis are from 94 articles used as datasets. After filtering and adjusting the articles, it was found that innovation, development and technological change in vocational education as a response to COVID-19 are the media and methods in learning. The next research and study that becomes the main focus of vocational education from a socio-technical point of view is the social impact of the COVID-19 pandemic. It is the great potential for increasing unemployment. As a result, the answers/solutions are obtained for these impacts. This article concludes with a discussion of the implications and limitations of the study.

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Tools and Strategy for Distance Learning to Respond COVID-19 Pandemic in Indonesia

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Ingenierie des Systemes d'Information 2020年第3期25卷 383-390页

作者： Utomo, Muhammad Nur Yasir Sudaryanto, Memet Saddhono, Kundharu Computer and Network Engineering Study Program Department of Electrical Engineering Politeknik Negeri Ujung Pandang Makassar90245 Indonesia Faculty of Teacher and Training Graduate School of Javanese Language and Literature Universitas Sebelas Maret Surakarta57126 Indonesia

Distance learning is a learning process that allows students and instructors are in different physical locations. During the COVID-19 pandemic, various countries including Indonesia chose the distance learning option to avoid the spread of the pandemic. However, the implementation of distance learning is not without problems. In Indonesia, the problems to implement distance learning are enormous both in terms of equitable distribution of infrastructure and costs for accessing the internet. To overcome these problems, research about best distance learning tools and its implementation strategy is really needed. Therefore, this research aimed to analyze the strategies and tools for implementing distance learning that reliable and cost-effective for the student at the same time. Based on research that has been conducted by analyzing questionnaire surveys of 256 students in Indonesia, this research recommends tools combination strategy consists of Google Classroom tool as a learning app, Whatsapp group as broadcast messaging and Zoom as a video conference media for distance learning. This research also recommended to maximize the e-learning/learning app features for theoretical lessons and consider video conference just in practical lessons so that the distance learning costs become cheaper for students. © 2020 International Information and engineering Technology Association. All rights reserved.

关键词： Students

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Rabi antenna using microstrip add-drop multiplexer for electron warp speed investigation

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Chinese Optics Letters 2022年第7期20卷 80-87页

作者： Somchat Sonasang Prakasit Prabpal Piya Sirikan Pratimakorn Hakaew Nhat Truong Pham Preecha Yupapin Kanad Ray Sarawoot Boonkirdram Department of Electronic Technology Faculty of Industrial TechnologyNakhon Phanom UniversityNakhon Phanom 48000Thailand Department of Electrical Technology School of Industrial TechnologySakonnakhon Technical CollegeInstitute of Vocational Education Northeastern Region 2Sakonnakhorn 47000Thailand Division of Computational Mechatronics Institute for Computational ScienceTon Duc Thang UniversityHo Chi Minh City 72915Vietnam Faculty of Electrical and Electronics Engineering Ton Duc Thang UniversityHo Chi Minh City 72915Vietnam Amity School of Applied Sciences Amity University RajasthanJaipurIndia Faubert Lab Universitéde MontréalH3T 1P1 MontréalCanada Facultad de CienciasFisico-Matematicas Benemérita Universidad Autónoma de PueblaAv.San Claudio y Av.18 surCol.San Manuel Ciudad UniversitariaPuebla Pue 72570Mexico Program of Electrical and Electronics Faculty of Industrial TechnologySakon Nakhon Rajabhat UniversitySakon Nakhon 47000Thailand

This work presents experimental results of Rabi antenna characteristics using the coupled line microstrip *** was constructed by a modified coupled line microstrip four-port network,which is known as an add-drop *** driven AC input enters the device via an input port using the suitable frequency and coupled line microstrip ring *** multilevel system is generated by a wave-particle aspect before the two-level system is *** the resonance,the transitions of the states induce the energy called whispering gallery mode(WGM)at the circuit center,which is the squeezed *** generated electron oscillation within the WGM envelope oscillated by the frequency is known as the Rabi *** the successive filtering with continuous AC input via the selected port,the electron cloud warp speed can be generated and achieved inside the two-level *** constructed microstrip ring radius is 25 mm,and the experimental results of the Rabi antenna characteristics are in good agreement with the simulation *** obtained resonant antenna oscillation frequency is 2.103 *** electron cloud warp speed of 1.100c and time dilation of 0.006μs are obtained.

关键词： integrated photonics waveguide microwave photonics Rabi antenna

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The innovation of technology utilisation in distributing employee by vocational secondary school career centre

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Journal of Physics: Conference Series 2021年第1期1833卷

作者： D Triantini N Yuniarti Postgraduate Program of Electrical Engineering Education Universitas Negeri Yogyakarta Yogyakarta Indonesia Department of Electrical Engineering Education Faculty of Engineering Universitas Negeri Yogyakarta Yogyakarta Indonesia

Career Centre has a main role as a division in Vocational Secondary School (VSS) to bridge the students and alumni with their work field. Finding out how the success of the Career Centre's performance is very important for evaluation purposes. This study aimed to: (1) find out the role of the Career Centre in distributing the graduates of VSS in Yogyakarta at the workplace; (2) find out the obstacle experienced and its solution. This was evaluation research using the quantitative descriptive approach. The results showed that Career Centre's role was good accumulatively viewed from five aspects: (1) as seeker and provider of employment information; (2) conducting a coaching and employee briefing for students/alumni; (3) regarding stakeholders' partnership; (4) regarding recruitment, selection, and graduate distribution; and (5) graduates tracing. As doing their role, Career Centres faced some obstacles, such as a limited number of administrators, mismatching skills among vocational graduates, less developed IT utilisation, and less organized administrative management. Career Centre's performance has not been optimal thus it needs innovation. Optimizing technology utilisation by creating an information system with important and helpful features will improve the Career Centre in doing their role. Those features will facilitate the students, alumni, and administrators regarding job vacancies and recruitment information, work field recommendation, graduates' tracing, administrative management, etc.

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Implementation of Generate and Test Algorithm for Junior High School Zoning System in Malang 4

Implementation of Generate and Test Algorithm for Junior Hig...

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4th International Conference on Vocational education and Training, ICOVET 2020

作者： Ratnasar, Novia Agustin Mawarni, Inggar Tri Nur Handayani, Anik Wibawa, Aji Prasetya Hammad, Jehad A. H Wibowotomo, Budi Sugandi, MacHmud Universitas Negeri Malang Vocational Education Program Department Indonesia Universitas Negeri Malang Electrical Engineering Dept Indonesia Al-Quds Open University Faculty of Technology and Applied Sciences Department of Computer Information Systems Palestine Universitas Negeri Malang Industrial Technology Department Malang65145 Indonesia Universitas Negeri Malang Mechanical ENgineering Department Malang65145 Indonesia

ISBN: (纸本)9781728181318

Admission of new students in 2019 through zoning still faces many obstacles, one of which is the readiness of the application to determine the distance of a student's house from the nearest recommended school. The purpose of this study is to provide better recommendations regarding the shortest and most accurate distance in the zoning system for admission of junior high school students in Malang by using the Generate and Test algorithm without having to do it manually or using other map applications. The results of this study indicate that the distance value obtained from the haversine formula corresponds to the original distance measured through a zoning application that applies the Generate and Test algorithm to measure the closest distance from the student's location. The recommended distance is given through a process of repetition and comparison of nodes. By using the generate and test algorithm for the search process the shortest distance from the user to the destination school has an average time of 6.2MB, the level of accuracy is the same as the Haversine calculation. © 2020 IEEE.

关键词： Students

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Disaster Robot Navigation using Behavior-based Systems 3

Disaster Robot Navigation using Behavior-based Systems

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3rd International Conference on Applied Science and Technology, iCAST 2020

作者： Kuswadi, Son Tamara, Mohamad Nasyir Brahmantio, Bagoes Taufiq Sugiharto, Debynata Mohammad, N.U.H. Mechatronic Study Program Machanical and Energy Department Politeknik Elektronika Negeri Surabaya Surabaya Indonesia Mechatronic Study Program Machanical and Energy Department Politeknik Negeri Banyuwangi Banyuwangi Indonesia PT Prima Nurjwan Samudera Indonesia Group Jakarta Indonesia PT Pabrik Kertas Tjiwi Kimia APP Sinar Mas Group Sidoarjo Indonesia Biomedical Engineering Department Faculty of Inteliigent Electrical and Informatics Technology Institut Teknologi Sepuluh Nopember Surabaya Indonesia

ISBN: (纸本)9781728195674

In a natural disaster, it is often necessary to have an autonomous system capable of moving in an irregular and unpredictable area. This paper proposes a robot that is mechanically capable of moving in a disaster area and equipped with a navigation using behavior-based systems. Its mechanical, electronic and computing systems are described. The development of the primitive behavior that has been made is explained in detail. Several experiments have been carried out to show the performance of the proposed robotic systems. © 2020 IEEE.

关键词： Disasters

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