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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) IAES International Journal of Robotics and Automation (IJRA) International Journal of Applied Power Engineering (IJAPE) Jurnal Penelitian Saintek AQUATIC SCIENCE & MANAGEMENT Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Jurnal Pendidikan IPA Indonesia JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Teknologi Informasi dan Ilmu Komputer JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Edufisika: Jurnal Pendidikan Fisika IJIET (International Journal of Indonesian Education and Teaching) Jurnal Ilmiah Pendidikan Fisika PENDIPA Journal of Science Education COMPTON: Jurnal Ilmiah Pendidikan Fisika JPBIO (Jurnal Pendidikan Biologi) PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Kasuari: Physics Education Journal (KPEJ) Silampari Jurnal Pendidikan Ilmu Fisika Jurnal Paedagogy Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Bioscientist : Jurnal Ilmiah Biologi Prima Abdika: Jurnal Pengabdian Masyarakat Darmabakti: Jurnal Inovasi Pengabdian dalam Penerbangan Jurnal Inovasi Pengabdian Masyarakat Pendidikan East Asian Journal of Multidisciplinary Research (EAJMR) IJOEM: Indonesian Journal of Elearning and Multimedia Finger : Jurnal Ilmiah Teknologi Pendidikan Amplitudo: Jurnal Ilmu dan Pembelajaran Fisika Aktual : Jurnal Pengabdian Kepada Masyarakat Jurnal Pendidikan MIPA IJIS Edu : Indonesian Journal of Integrated Science Education
Mayub, Afrizal
Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Transportation Other

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Kendali Logika Fuzzy pada Sistem Electronic Control Unit (ECU) Air Conditioner Mobil Fahmizal, Fahmizal; Orlando, Tommy Richard; Murti, Budi Bayu; Budiyanto, Maun; Mayub, Afrizal
Jurnal Teknologi Informasi dan Ilmu Komputer Vol 6 No 1: Februari 2019
Publisher : Fakultas Ilmu Komputer, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3156.001 KB) | DOI: 10.25126/jtiik.2019611045

Abstract

Makalah ini memaparkan perancangan kendali logika fuzzy pada sistem electronic control unit (ECU) air conditioner mobil. Salah satu kendala pada ECU mobil adalah kerusakan pada sistem air conditioner. Bila ini terjadi umumnya pengguna mobil mengganti sistem ECU secara keseluruhan. Namun pada makalah ini, penulis meracang sistem ECU yang secara khusus digunakan untuk sistem air conditioner mobil. Sistem yang dirancang menggunakan sensor DS18B20 waterproof untuk mendeteksi suhu evaporator mobil. Selanjutnya, nilai suhu tersebut digunakan sebagai masukan logika fuzzy yang terdiri dari pembacaan suhu sekarang dan suhu terakhir dalam mengatur kecepatan putar kipas motor DC atau fan exhausting dan waktu switching magnetic clutch compressor menyala. Hubungan relasi masukan fuzzy diselesaikan dengan aturan Mamdani dan keluaran dari logika fuzzy diselesaikan dengan metode weight average (WA). Dari hasil pengujian diperoleh bahwa kendali logika fuzzy yang diaplikasikan pada rancangan sistem air conditioner mampu mengendalikan kecepatan fan exhausting secara halus dan responsif.AbstractThis paper describes the design of fuzzy logic controls in the system of electronic control unit (ECU) of car air conditioner. One obstacle in the car ECU is damage to the air conditioner system. If this happens generally car users change the whole ECU system. But in this paper, the authors form the ECU system which is specifically used for car air conditioner systems. The system is designed using a DS18B20 waterproof sensor to detect the temperature of the car's evaporator. Furthermore, the temperature value is used as a fuzzy logic input consisting of reading the current temperature and the last temperature in adjusting the rotating speed of the DC motor fan or exhausting fan and when the switching magnetic clutch compressor is on. Completion of fuzzy input relations is solved using Mamdani rules and the output of fuzzy logic is solved using the weight average (WA) method. From the test results it was found that the fuzzy logic control applied to the design of the air conditioner system was able to control the speed of the exhausting fan in a smooth and responsive manner. 
DEVELOPING MULTIPLE INTELLIGENCES THROUGH ICT-BASED E-LEARNING PROGRAM Mayub, Afrizal; Fahmizal, Fahmizal
IJIET (International Journal of Indonesian Education and Teaching) Vol 7, No 1 (2023): January 2023
Publisher : Sanata Dharma University Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijiet.v7i1.3117

Abstract

This study aims to determine the development of nine types of intelligence (Multiple Intelligences) through an e-learning program implemented through a computer network and/or personal computer (PC) with CD ROM. This type of research includes quantitative descriptive research, which describes the function of e-learning programs as a means of growth and development of all types of intelligence. The research method is carried out by comparing the pedagogical way of developing multiple intelligences with the facilities owned by the e-learning program. The degree of conformity used a percentage (%), then processed using a Likert Scale. Based on theory and virtual experiments, as well as the opinions of 2 experts and 35 education practitioners as junior/high school teachers, it was found that the e-learning program functions to facilitate the development of intelligence in the "distributed" category with a score of 4 (scale 1-5). The results of this study will help teachers and lecturers reflect on face-to-face learning so that during the Covid-19 period learning can be transferred to a system that uses an e-learning program that can accommodate the growth and development of multiple intelligences supported by technological advances. Moreover, this system does not require a network and signal but can be accessed in the form of a CD-ROOM/Flash Disk. In the future, learning like this can be a priority to be implemented.
The effect of growth regulator on growth rate of amorphopallus titanum Anggraini, Lia; Mayub, Afrizal; Wardana, Rendy Wikrama; Ruyani, Aceng; Johan, Henny
JPBIO (Jurnal Pendidikan Biologi) Vol 10, No 1 (2025): April 2025
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v10i1.4052

Abstract

The Amorphophallus flower is one of the Endangered species, so there needs to be an effort to preserve breeding with a fast time, namely artificial vegetative. In addition, the a need for a growth hormone to accelerate the growth process so that the number is not extinct, namely growth regulators (ZPT). The purpose of this study was to breed A. titanum vegetatively supported with growth regulators (ZPT) to improve quality and growth rates. The method used is a completely randomized design (CRD), which is divided into 4 treatments namely A (coconut water), B (shallots), C (bamboo shoots), and D (control) with a total of 4 replications so that in this study there were 16 plants (polybags). The results showed that the natural growth regulator treatment of shallot extract gave the best results in the parameter of the number of shoots, while coconut water extract gave the best results in the parameters of shoot length and growth time. Based on the results, it can be concluded that the use of natural growth regulators from coconut water, shallots, and bamboo shoots affects the growth rate of Amorphophallus titanum.
Control and Navigation of Differential Drive Mobile Robot with PID and Hector SLAM: Simulation and Implementation Fahmizal, Fahmizal; Pratikno, Matthew Sebastian; Isnianto, Hidayat Nur; Mayub, Afrizal; Maghfiroh, Hari; Anugrah, Pinto
Jurnal Ilmiah Teknik Elektro Komputer dan Informatika Vol. 10 No. 3 (2024): September
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/jiteki.v10i3.29428

Abstract

Navigation technology is essential in fields like transportation and logistics, where precise mapping and localization are critical. Simultaneous Localization and Mapping (SLAM) technologies, such as Hector SLAM, enable robots to map environments by detecting and predicting object locations using sensors like LiDAR. Unlike other SLAM methods, Hector SLAM operates without odometry, relying solely on LiDAR data to produce accurate maps. This study investigates the application of Hector SLAM in a differential drive mobile robot controlled via the Robot Operating System (ROS), with PID control managing the motor speeds. The research contribution is the integration of Hector SLAM with PID control to enhance mapping accuracy in environments without odometry data. The method involves testing the robot's mapping performance in an indoor environment, focusing on the impact of varying linear and angular velocities on the quality of the generated maps. The PID control was tuned to ensure stable speed values for the robot's differential drive motors. Results show that Hector SLAM, when combined with well-tuned PID control, generates highly accurate maps that closely match the actual environment dimensions, with minimal errors. Specifically, the mapping error was found to be within 0.10 meters, validating the effectiveness of this approach in non-odometric systems. In conclusion, the study demonstrates that Hector SLAM, supported by PID-controlled motor stability, is an effective solution for mapping in differential drive mobile robots, particularly in scenarios where odometry is unavailable.
Pelatihan Mendesain Lembar Kerja Praktikum Berbasis Predict-Observ-Explain Bagi Guru SMP Nursa’adah, Euis; Firdaus, Mochamad Lutfi; Mayub, Afrizal
Prima Abdika: Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2025): Volume 5 Nomor 1 Tahun 2025 (Maret)
Publisher : Program Studi Pendidikan Guru Sekolah Dasar Universitas Flores Ende

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/abdika.v5i1.5010

Abstract

Knowledge continues to evolve, requiring teachers to innovate, particularly in implementing the Kurikulum Merdeka (Independent Curriculum). Field observations indicate that many schools still struggle with its implementation, as they must tailor learning to students' individual characteristics. SMPN 03 Lebong in Bengkulu Province is one such school facing these challenges. Given these issues, an alternative solution is needed to support the independent implementation of the Kurikulum Merdeka. One possible approach is to provide training for teachers at SMPN 03 Lebong on designing learning activities and practical worksheets based on the Prediction, Observation, and Explanation (POE) model. This training follows the I-CARE design, which consists of five stages: Introduction, Connection, Application, Reflection, and Extension. As a result, teachers successfully developed six learning designs and practical guides based on the POE model, utilizing available tools and materials from their surroundings. This initiative enhances student-centered learning, aligning with the objectives of the Kurikulum Merdeka.
Development of HOTS-Based Interactive E-Modules to Train High School Students' Critical Thinking Skills on Harmonic Vibration Material Akbar Agustian, Muhammad; Mayub, Afrizal; Hamdani, Dedy
FINGER : Jurnal Ilmiah Teknologi Pendidikan Vol. 3 No. 1 (2024): Finger : Jurnal Ilmiah Teknologi Pendidikan
Publisher : CV. Media Inti Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58723/finger.v3i1.212

Abstract

The goal of this project is to create an interactive e-module using Hots to teach high school students how to think critically about content related to harmonic vibration that is both realistic and well-received by the students. Thirty-five pupils from class X SMAN 01 Bengkulu City provided the data for this study. The 4D model research method—which stands for Define, Design, Develop, and Disseminate—is used in this study. The study employed many instruments, including observation sheets, student impression sheets, instructor needs questionnaires, and expert team validation sheets. In order to aid students in understanding the teaching materials, the resulting e-module includes text, tables, graphics, formulas, and learning videos. Additionally, an interactive quiz within the e-module allows students to practice their skills. The results of this study indicate that the developed e-module is included in the very feasible category with a value of 87.2%. Students' perception of this e-module is included in the very good category with a value of 84.4%.
Development of Electronic Student Worksheets (E-LKPD) Pendap Bengkulu Based on Discovery Learning as A Learning Media for Additive Material Nutriastuti, Putri; Uliyandari, Mellyta; Parlindungan, Deni; Mayub, Afrizal; Defianti, Aprina
Jurnal Paedagogy Vol. 11 No. 2 (2024): April
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jp.v11i2.11176

Abstract

This research aims to develop the electronic student worksheets (E-LKPD) Pendap Bengkulu based on Discovery Learning as a Learning Media for Additive Material in Science lesson content for class VIII SMP. This study used the 4D development model (Define, Design, Develop, and Disseminate), which was limited to the development stage with limited trials conducted at SMPN 03 Bengkulu City, with a sample of 33 students from class VIII.1. To collect data, several questionnaires were distributed to media experts, material experts, participants, and students. Data analysis was carried out using descriptive statistical analysis techniques using percentage analysis. The results of the research showed that the feasibility test of E-LKPD involving 3 material experts, 2 media experts, and 2 participants resulted in an 92.3% percentage of validation test results, and it can be said that E-LKPD Pendap Bengkulu, which was developed as a learning medium for additive material for junior high school students, was very feasible to use. Analysis of student readability of E-LKPD Pendap Bengkulu as a learning medium for additive material for junior high school students resulted in a percentage of 89.8% readability response, indicating that E-LKPD is very well applied to junior high school students in grade VIII.
Robotics Workshop to Increase Motivation and Science Literacy of SMP IT Khairu Ummah Rejang Lebong Students Mayub, Afrizal; Firdaus, M. Lutfi; Fahmizal, Fahmizal; Ruyani, Aceng; Lazfihma, Lazfihma; Dewi , Deshinta Arrova
Aktual: Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 1 (2025): Aktual: Jurnal Pengabdian Kepada Masyarakat January 2025
Publisher : CV Media Inti Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58723/aktual.v3i1.347

Abstract

This activity aims to Increase the Motivation and Science Literacy of SMP IT Khairu Ummah Rejang Lebong Students. This activity is one form of implementing the tridharma of higher education. One of the tri dharmas of higher education is community service, this service activity is an activity that every lecturer must carry out, therefore lecturers in the Master of Science program at Bengkulu University collaborated with IT SMP teacher Khairu Ummah Rejang Lebong Bengkulu on September 28, 2024, to carry out service activities at SMP IT Khairu Ummah Rejang Lebong. This collaboration takes the form of community service activities at SMP IT Khairu Ummah Rejang Lebong Bengkulu with the title "Robotics Workshop to Increase Motivation and Science Literacy of SMP IT Khairu Ummah Rejang Lebong Students". From these activities, it can be concluded that the teaching material delivered at the Robotics Workshop uses interactive multimedia which includes lectures, virtual demos, animations, visualizations, simulations and videos which have proven successful in motivating students in the motivated category with a score of 3.84 and increasing scientific literacy in the high category with a score of 3.93.
Effect honje forest fruit juice administration on hemoglobin levels following mercury chloride treatment in mice Iskandar, Aiza Sabina Putri; Ruyani, Aceng; Parlindungan, Deni; Johan, Henny; Mayub, Afrizal
JPBIO (Jurnal Pendidikan Biologi) Vol 10, No 2 (2025): November 2025
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v10i2.5561

Abstract

Exposure to mercury chloride (HgCl?) is known to induce oxidative stress, which negatively affects the hematological system, including a decrease in hemoglobin levels. This study aims to analyze the effect of honje fruit juice (Etlingera hemisphaerica), known for its high antioxidant content, on hemoglobin levels in mice (Mus musculus) exposed to mercury chloride. This study used an experimental method involving several groups of mice, namely group K1 (control), group K2 (given honje fruit juice), and group K3 (injected with mercury and given honje fruit juice). Hemoglobin levels were measured using a Sahli tube. The results showed that honje fruit juice significantly increased hemoglobin levels in mice exposed to mercury chloride compared to the control group. These findings indicate that the antioxidant content in honje fruit can help reduce the toxic effects of mercury chloride on the circulatory system. Therefore, honje fruit juice has the potential to be developed as a natural therapeutic agent in efforts to mitigate the toxic effects of mercury chloride.
Biogas in Science Education: A Systematic Literature Review and Bibliometric Mapping of Trends, Challenges, and HOTS Integration (2015–2024) Handayani, Rinda Fitri; Wardana, Rendy Wikrama; Mayub, Afrizal; Yanti, Fitri April; Nursaadah, Euis; Abdul Rahim, Suzieleez Syrene; Khamis, Noorzana
Jurnal Pendidikan MIPA Vol 27, No 1 (2026): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpmipa.v27i1.pp63-81

Abstract

Biogas is a renewable, environmentally friendly energy source with significant potential for science education, offering an alternative to the global fossil fuel crisis. This study aims to provide a brief overview of research trends, publication contributions, methodologies used, thematic coverage, and teaching integration in the biogas-based science education literature. This study is a Systematic Literature Review (SLR) with bibliometric analysis, supported by Publish or Perish and VOSviewer, including 720 selected articles from the period 2015 to 2024. The results show that, since 2020, publications related to biogas have increased significantly, with three main research focuses: the use of organic waste for renewable energy development; the application of biogas as an alternative global energy source through technological innovation; and its integration into HOTS learning and education. The majority of the publications come from reputable international journals such as Energies and Sustainability. Case studies and reviews remain the dominant research protocols, while empirical designs such as experiments and surveys are still relatively rare, leaving room for more applied follow-up studies. This review also finds that the application of biogas in science education can support the development of Higher Order Thinking Skills (HOTS). However, this application remains limited in the existing literature. Therefore, the findings highlight the need for further empirical research to more deeply explore the potential of biogas for science education and HOTS development. This study provides new insights that the biogas literature has not fully integrated practical applications for HOTS development, thus requiring further creative and applied research to address this gap. Keywords: alternative energy, biogas, environmentally friendly, HOTS, science education.
Co-Authors Abdul Rahim, Suzieleez Syrene ACENG RUYANI Akbar Agustian, Muhammad Aniliawati, Ur Anugrah, Pinto Arsela Eko Listiono Bambang Prayogo, Bambang BHAKTI KARYADI Bramastia Budi Bayu Murti Budiyanto, Ma’un Dara, Niki Dwi Dia Deddy Bakhtiar, Deddy Dedy Hamdani Defianti, Aprina Delima, Ega Marita Dewi , Deshinta Arrova Eko Risdianto Elsi Adelia Fitri Esra, Gracia Fahmizal, Fahmizal Farid, Muchammad Firdaus, M. Lutfhi Firdaus, Mochamad Lutfi Fitri April Yanti, Fitri April Funny Farady Coastera, Funny Farady Galih Setyawan Handayani, Rinda Fitri Henny Johan Herawati, Asmida Hidayat Nur Isnianto Iskandar, Aiza Sabina Putri Khamis, Noorzana Laberta, Tinu Lazfihma, Lazfihma Lia Anggraini Lina Mahardiani Lukmanul Hakim M. Farid, M. M. Lutfi Firdaus, M. Lutfi Maghfiroh, Hari Malau, Defi Dormasi Maulana, Yudi Maun Budiyanto, Maun Muhammad Arrofiq Najwa, Farah Aulia Nirwana, Nirwana Nofita, Inka Noni Noviana Nurcahyani Nurhamidah Nursa'adah, Euis Nursaadah, Euis Nursa’adah, Euis Nutriastuti, Putri Orlando, Tommy Richard Parlindungan, Deni Pistira, Pistira PRATAMA, DONNY BUDI Pratikno, Matthew Sebastian Pratiwi, Revika Julia Purwaningsih Rijalussalam, Dhiya Uddin Riska, Dara Ronald Adrian, Ronald Silaban, Sintiana Sudirman Sudirman Sutarno Sutarno SYAHRONI, IVAN Triana, Dini Fajar Triyanti, Dwi Erni Uliyandari, Mellyta Umaya Umaya, Umaya Wahyuningsih, Endah Tri Wardana, Rendy Wikrama wati, Devica Wikrama Whardana, Rendy Wirahayu, Maya