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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 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) 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 Prima Abdika: Jurnal Pengabdian Masyarakat Darmabakti: Jurnal Inovasi Pengabdian dalam Penerbangan Jurnal Inovasi Pengabdian Masyarakat Pendidikan East Asian Journal of Multidisciplinary Research (EAJMR) Amplitudo: Jurnal Ilmu dan Pembelajaran Fisika IJIS Edu : Indonesian Journal of Integrated Science Education

Mayub, Afrizal

Universitas Bengkulu

Author-ID : 698416

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 Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Transportation Other

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PENGEMBANGAN PEMAHAMAN TANAMAN OBAT DALAM PENDIDIKAN KONSERVASI MENDUKUNG PENGEMBANGAN KEBUN TOGA DI SMP KHAIRUL UMAH REJANG LEBONG Listiono, Arsela Eko; Umaya, Umaya; Firdaus, Mochamad Lutfi; Nursa’adah, Euis; Mayub, Afrizal; Fitri, Elsi Adelia
Jurnal Inovasi Pengabdian Masyarakat Pendidikan Vol. 5 No. 1 (2024): Vol. 5 No. 1 (2024)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jurnalinovasi.v5i1.36975

Pengabdian kepada masyarakat ini diselenggarakan di SMP IT Khoirul Ummah Rejang Lebong. Jika dilihat berdasarkan tata kelola gedung, SMP IT Khoirul Ummah belum memiliki gedung laboratorium namun memiliki lahan kosong yang cukup luas dan berpotensi dalam mengembangkan taman tanaman obat keluarga sebagai sumber bahan belajar bagi siswa. Metode yang digunakan meliputi penyampaian materi, sesi diskusi, demonstrasi pembuatan simplisia serta uji larutan asam basa, dan penanaman bunga telang sebagai pendidikan konservasi. Hasilnya yaitu terciptanya kebun tanaman obat keluarga yang dapat dimanfaatkan serta dikelola lebih baik oleh warga SMP IT Khoirul Ummah. Selain itu juga peserta pengabdian masyarakat ini khususnya warga SMP IT Khoirul Ummah memperoleh pengetahuan baru serta wawasan mengenai manfaat tanaman obat di sekitar untuk dijadikan sebagai obat pendamping keluarga.

Strengthening Spiritual Values through Environmental Physics Learning Assisted by Authentic Data Modelling and Visual Media Johan, Henny; Mayub, Afrizal; Wardana, Rendy Wikrama; Herawati, Asmida; Sudirman, Sudirman; Noviana, Noni; Umaya, Umaya
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 13 No 1 (2024): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v13i1.22377

Environmental Physics concepts are very likely to be explored to facilitate the cultivation of spiritual attitudes because they are closely related to phenomena in everyday life. Visual media can help visualize environmental phenomena so that they are easier to understand. This study aims to instill spiritual values through the concept of Environmental Physics as an alternative learning that focuses on the affective domain with the help of visual media. This study involved 15 science education postgraduate students. This research used a Pre-experimental design with a Shoot Case Study. The research design includes pre-experiment, experiment, and analysis of experimental data results. In the pre-experiment stage, the concept of environmental physics and spiritual attitudes were analyzed, learning tools were prepared, and questionnaire instruments for student perceptions related to the cultivation of spiritual values were prepared. At the experimental stage, the implementation of Environmental Physics learning integrated with spiritual values was carried out. In the post-experiment stage, data analysis and interpretation were carried out to answer research problems. Based on the results of data analysis, it is known that 92.15% of respondents strongly agree that learning environmental physics can instill awareness of the nature of God. Based on the results of the open-ended questionnaire, it is known that students can explain the content of spiritual values in various phenomena in the environment. In addition, students stated that visual media can facilitate the activity of instilling awareness that God is omnipotent over all the universe. Thus it can be concluded that environmental physics learning activities can instil spiritual attitudes through environmental physics content assisted by visual media. Science content, especially environmental physics, is very relevant in instilling spiritual values

Solar cell-based garden light automation for environmentally friendly technology learning Mayub, Afrizal; Fahmizal, Fahmizal; Lazfihma, Lazfihma
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 3: September 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i3.pp1457-1471

This research aims to: 1) Produce a prototype design for a solar cell-based automatic garden lighting system; 2) Determine the relationship between current, power, and voltage and light intensity; 3) Describe the feasibility of an environmentally friendly technology practicum guidebook; and 4) Describe teacher and student responses to the environmentally friendly technology practice guidebook. This research is R&D type Analysis, Design, Development, Implementation and Evaluation (ADDIE) Analysis, design, development, implementation and evaluation. The research sample used 44 class IX students at MTS Rahmatullah. According to students, aspects of teaching materials, aspects of content, and difficulty of teaching materials at school are inadequate at 84.25%, 80% and 82.5%. Student interest in environmentally friendly technology practicum guidebooks was 84.25%. The higher the light intensity, the higher the current, power, and voltage. Expert validation shows; the prototype of an automatic garden lighting system based on solar cells and a practical guidebook on environmentally friendly technology are very suitable for use (89.14% and 90.75%). The use of environmentally friendly technology practicum guidebooks increased students' critical thinking skills in the high category (N-Gain = 0.7937) and received responses from teachers and students in the "almost all" category (91.50% and 89.9%).

Needs Analysis for the Development of Student Worksheets on Heat Material in the Context of a Solar Energy Desalinator Aniliawati, Ur; Wardana, Rendy Wikrama; Mayub, Afrizal
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 5, No 1 (2023): January 2023
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29300/ijisedu.v5i1.6505

Before using student worksheets, so that they can be used legally, they should be tested first on at least 3 experts and tested on students. The type of research used is descriptive qualitative. This needs analysis aims to determine what teaching materials are needed in the heat material at Junior High School 4 Bengkulu City. The method in this study, researchers used the Research and Development (R&D). ADDIE model development procedure. The research was carried out in September 2022. The research sample consisted of 40 students who were in 8th grade. The research instruments were in the form of interviews and student response questionnaires which consisted of 18 question items regarding the needs of integrated worksheets for solar energy-based desalinator designs which contained 4 aspects namely indicator aspects, teaching material needs aspects, learning media aspects, and interest aspects. The results of student response data based on aspects of the average indicator of 80% do not use Student Worksheets on heat material, the aspect of teaching material needs on average is 80% of students find it difficult to learn science on heat material with teaching materials that used by teachers, the learning media aspects of students on average 77% rarely use laboratories to conduct experiments or practicums, so teachers rarely use and provide Student Worksheets to students in science lessons, and the motivational aspects of student interest on average on average 82% are quite interested, quite enthusiastic about learning science so what are they interested in developing Student Worksheets teaching materials. From the data obtained, some students agree that it is necessary to develop Student Worksheets

Acoustic Characteristics of Several Fish Species of Jenggalu River Estuary Through Controlled Measurements in Bengkulu City Bakhtiar, Deddy; Malau, Defi Dormasi; Silaban, Sintiana; Esra, Gracia; Mayub, Afrizal
East Asian Journal of Multidisciplinary Research Vol. 3 No. 2 (2024): February 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/eajmr.v3i2.7830

Estuary waters are important habitats as spawning and nursery areas for various species of fish so it is necessary to monitor the fish resources in them. The purpose of this study is to analyze the target strength values of various estuary fish species from the Jenggalu River estuary through controlled measurements and formulate the relationship of target strength to total fish length. The controlled acoustic method uses a Simrad EK-15 echosounder with a frequency of 200 kHz. Measurements were taken in the pond using the tethered method, where the dead test fish was hung horizontally on the frame and then the acoustic signal was emitted vertically from above. The samples used were 13 species of fish with a total of 62 fish. The results obtained the average value of target strength has a range of values ranging from -68.86 to -54.80 dB. The relationship between the target strength value and the total length of the fish shows a very strong relationship with the correlation coefficient (r) value ranging from 0.86 – 0.96 and the coefficient of determination shows more than 74% of the TS value is influenced by the size of the fish length. The resulting equation model of the relationship between TS and total length size showed that TS values on the dorsal aspect increased in proportion to the square of fish length.

Aplikasi Konsep Sains dalam E-Comic Bencana Banjir untuk Meningkatkan Keterampilan Berpikir Kritis dan Membekalkan Kesiapsiagaan Bencana Siswa SMP Laberta, Tinu; Nursa’adah, Euis; Mayub, Afrizal; Karyadi, Bhakti; Bramastia
COMPTON: Jurnal Ilmiah Pendidikan Fisika Vol 11 No 2 (2025): Compton: Jurnal Ilmiah Pendidikan Fisika
Publisher : Prodi Pendidikan Fisika Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/cjipf.v11i2.20882

Low levels of disaster literacy and critical thinking among students highlight the need for innovative and contextualized learning media in science education. This research develops and evaluates the effectiveness of a flood disaster mitigation science E-comic to enhance students’ critical thinking and disaster preparedness. The study employed a Research and Development (R&D) approach using the 4D model (Define, Design, Develop, and Disseminate). Validation results indicated that the E-comic is feasible as a learning medium, with CVI values of 0.89 (media) and 1.00 (content). The use of the E-comic effectively improved students’ critical thinking skills and disaster preparedness, as evidenced by high N-Gain scores and significant statistical results. The improvement was consistently observed across all disaster preparedness indicators, including knowledge, attitudes, and response planning. The study concludes that the flood disaster mitigation E-comic is both effective and feasible as a contextual science learning medium. The integration of flood-related physical science concepts demonstrates how contextualized media can strengthen scientific literacy in disaster education.

Logika Fuzzy pada Robot Inverted Pendulum Beroda Dua Fahmizal, Fahmizal; Setyawan, Galih; Arrofiq, Muhammad; Mayub, Afrizal
Jurnal Teknologi Informasi dan Ilmu Komputer Vol 4 No 4: Desember 2017
Publisher : Fakultas Ilmu Komputer, Universitas Brawijaya

AbstrakRobot inverted pendulum beroda dua (IPBD) merupakan sistem yang tidak stabil dan bersifat non-linear. Motor DC sebagai penggerak robot yang terletak pada masing-masing roda kiri dan kanan memberikan variabel gaya untuk mempertahankan kestabilan robot. Oleh karena itu diperlukan suatu kendali yang dapat menjaga keseimbangan dari robot. Makalah ini memaparkan kendali logika fuzzy dalam hal pengendali keseimbangan robot. Pada perancangan robot ini, penulis menggunakan senor inertia measurement unit (IMU) versi MPU 6050 sebagai sensor pendeteksi keseimbangan robot. Nilai setpoint sudut robot yang diberikan adalah sudut elevasi robot terhadap sumbu horizontal atau pada sumbu pitch. Selanjutnya, nilai keluaran sensor IMU dibandingkan dengan setpoint. Lebih lanjut, nilai kesalahan (error) dan nilai perubahan kesalahan (delta errror) yang dihasilkan akan digunakan sebagai masukan logika fuzzy. Hubungan relasi masukan fuzzy diselesaikan dengan aturan Mamdani. Keluaran dari logika fuzzy diselesaikan dengan perhitungan weight average (WA). Hasil keluaran logika fuzzy berupa nilai putaran motor kiri dan kanan yang dikendalikan dengan cara mengatur lebar pulsa sinyal pulse with modulation (PWM). Dari hasil pengujian diperoleh bahwa kendali logika fuzzy yang diaplikasikan pada robot IPBD dapat menjaga keseimbangan robot dengan osilasi pada sudut -2 hingga 2 derajat.Kata kunci: Logika Fuzzy, Inverted Pendulum, IMU AbstractInverted robot pendulum two (IPBD) is an unstable system that is naturally and non-linear. The DC motor as a robot drive located on each of the left and right wheels provides a force variable to maintain the robot's stability. Therefore we need a control that can maintain the balance of the robot. This paper presents fuzzy logic control in terms of robot balance control. In designing this robot, the author uses inertia measurement unit senator (IMU) MPU 6050 version as a robot balance detection sensor. The given set of corner robot values is the robot's elevation angle to the horizontal axis or on the pitch axis. Furthermore, the value of the IMU sensor output is compared with the setpoint. Furthermore, the error value and the resulting error change value (delta errror) will be used as fuzzy logic input. The relation of fuzzy input relation is solved with Mamdani rule. The output of fuzzy logic is solved by calculating the weight average (WA). The result of fuzzy logic output is left and right motor rotation controlled by adjusting pulse signal of pulse with modulation (PWM). The experiment results obtained that fuzzy logic control applied to the robot IPBD can maintain the robot balance by having oscillations at an angle of -2 to 2 degrees.Keywords: Fuzzy Logic, Inverted Pendulum, IMU

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

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

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

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.

Co-Authors ACENG RUYANI Aniliawati, Ur Arsela Eko Listiono Bambang Prayogo, Bambang BHAKTI KARYADI Bramastia Budi Bayu Murti Budiyanto, Ma’un Dara, Niki Dwi Dia Deddy Bakhtiar, Deddy Defianti, Aprina Delima, Ega Marita Eko Risdianto Elsi Adelia Fitri Esra, Gracia Fahmizal, Fahmizal Farid, Muchammad Firdaus, M. Lutfhi Firdaus, Mochamad Lutfi Funny Farady Coastera, Funny Farady Galih Setyawan Henny Johan Herawati, Asmida Iskandar, Aiza Sabina Putri Laberta, Tinu Lazfihma, Lazfihma Lia Anggraini M. Farid, M. M. Lutfi Firdaus, M. Lutfi Malau, Defi Dormasi Maulana, Yudi Maun Budiyanto, Maun Muhammad Arrofiq Nirwana, Nirwana Nofita, Inka Noni Noviana Nurcahyani Nurhamidah Nursaadah, Euis Nutriastuti, Putri Orlando, Tommy Richard Parlindungan, Deni PRATAMA, DONNY BUDI Pratiwi, Revika Julia Purwaningsih Rihadatulaisi, Hersi Rijalussalam, Dhiya Uddin Riska, Dara Ronald Adrian, Ronald Silaban, Sintiana Sudirman Sudirman Sutarno Sutarno SYAHRONI, IVAN Triyanti, Dwi Erni Uliyandari, Mellyta Umaya Umaya, Umaya Wardana, Rendy Wikrama wati, Devica Wikrama Whardana, Rendy Wirahayu, Maya

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