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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) AQUATIC SCIENCE & MANAGEMENT Jurnal Pendidikan IPA Indonesia JTSL (Jurnal Tanah dan Sumberdaya Lahan) JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Edufisika: Jurnal Pendidikan Fisika PENDIPA Journal of Science Education COMPTON: Jurnal Ilmiah Pendidikan Fisika Kasuari: Physics Education Journal (KPEJ) Silampari Jurnal Pendidikan Ilmu Fisika Darmabakti: Jurnal Inovasi Pengabdian dalam Penerbangan Journal Evaluation in Education (JEE) Jurnal Inovasi Pengabdian Masyarakat Pendidikan East Asian Journal of Multidisciplinary Research (EAJMR) IJOEM: Indonesian Journal of Elearning and Multimedia Amplitudo: Jurnal Ilmu dan Pembelajaran Fisika IJIS Edu : Indonesian Journal of Integrated Science Education
Mayub, Afrizal
Universitas Bengkulu
Agriculture, Biological Sciences & Forestry 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 Mathematics Physics Social Sciences Transportation Other

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Application of Phenomena Based-Interactive Conceptual Instruction (PB-ICI) to Foster Critical Thinking Skills and Spiritual Attitude Johan, Henny; Mayub, Afrizal; Wardana, Rendy Wikrama; Noviana, Noni; Umaya, Umaya
Kasuari: Physics Education Journal (KPEJ) Vol. 7 No. 2 (2024): December 2024
Publisher : Universitas Papua, Jurusan Pendidikan Fisika FKIP Unipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37891/kpej.v7i2.600

Abstract

Learning programmes need to be designed to provide cognitive aspects, especially critical thinking skills with indikators and aspects of spiritual attitudes in the learning process. This study aims to apply the Phenomena Based-Interactive Conceptual Instruction (PB-ICI) lecture model to equip critical thinking skills and instil spiritual values through science learning. This research uses a quasi-experiment. The results showed that the average pre-test score of critical thinking skills was 43.45 in the low category, the average post-test score was 79.48 in the high category and the average N-gain was 0.64 in the medium category. The results of the analysis of the cultivation of spiritual values show that PB-ICI learning can instil spiritual values related to the nature of divinity with an average response score of 88. Thus it is concluded that PB-ICI learning can improve critical thinking, instil spiritual values and get a very good response after PB-ICI learning implementation activities.
NEED ASSESSMENT METODE PEMBELAJARAN PADA PERKULIAHAN STATISTIK PENELITIAN PENDIDIKAN DIMASA COVID-19 Wardana, Rendy Wikrama; Mayub, Afrizal
EduFisika: Jurnal Pendidikan Fisika Vol 6 No 1 (2021): Edufisika: Jurnal Pendidikan Fisika Volume 6 Nomor 01, Juni 2021
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The study aims to describe the need for appropriate learning methods in educational research statistics lectures in the Covid-19 era. The type of research used was descriptive quantitative. The research sample amounted to 59 students consisting of 20 students from the master's degree program in science education and 39 students from the bachelor's program in physics education at one of the State Universities in Bengkulu City. The research instrument was a student response questionnaire consisting of 8 question items. Data collection was done through the distribution of questionnaires via google form. Data analysis was performed with descriptive statistics. The results of the study show that the Scafolding learning method is an alternative learning method in the era of covid 19. In addition, educational research statistics lectures have difficult and complex characteristics, especially in the data analysis process.  
Pengembangan e-modul pembelajaran IPA berorientasi etnosains alat musik pada materi gelombang bunyi untuk meningkatkan kemampuan berpikir kritis peserta didik Riska, Dara; Mayub, Afrizal; Karyadi, Bhakti
PendIPA Journal of Science Education Vol 8 No 2 (2024): June
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.8.2.300-306

Abstract

This study aims to develop ethnoscience-oriented science learning e-modules on sound waves of musical instruments improve the critical thinking skills of junior high school students in Bengkulu City. The research method used is R&D with the ADDIE model which are Analysis, Design, Development, Implementation , and Evaluation. This research was conducted on 33 students of eighth grade junior high school 2 Bengkulu City by using pretest-posttest design method. The results showed that: 1) Students stated that it is necessary to develop ethnoscience electronic modules (e-modules) to improve critical thinking skills in science learning. 2) The results of expert and practitioner validation of e-module feasibility instruments consist of four aspects, namely aspects of graphics, media aspects, language feasibility aspects, presentation feasibility aspects, and content feasibility aspects were declared feasible with an average percentage of 87.20% 3) The results of expert and practitioner validation of critical thinking skills instruments consisting of elementary clarification, basic support, inference, providing advance clarification, and organizing strategies and tactics were declared feasible with an average percentage of 93.33% . 4) There is an increase in students' critical thinking skills after using e-modules with a moderate category and a significance value of <0.05 is obtained, meaning that there is a significant effect with the use of sound wave ethnoscience e-modules in improving students' critical thinking skills.5) Students' response to the sound wave ethnoscience e-modules developed in the science learning process reached a percentage of 90.79%. with a very good category.
ANALISIS KESULITAN SISWA DALAM MENYELESAIKAN SOAL FISIKA BERGAMBAR PADA MATERI LISTRIK STATIS DI MAN KAUR Wirahayu, Maya; Mayub, Afrizal; Sutarno, Sutarno
Kumparan Fisika Vol 4 No 1: Amplitudo : Jurnal Ilmu dan Pembelajaran Fisika Edisi September 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ajipf.4.1.34-38

Abstract

ABSTRAK Kesulitan belajar mengerjakan soal dapat diartikan sebagai suatu kondisi yang tidak memungkinkan siswa dapat menggunakan informasi dalam soal untuk menyelesaikan permasalahan yang muncul dalam soal disebabkan adanya gangguan yang menghambat belajarnya. Kemampuan dalam menyelesaikan soal bergambar merupakan suatu kemampuam memahami teori-teori dan konsep materi fisika dalam bentuk gambar serta kemampuan berhitung siswa yang baik terhadap materi yang dipelajari. Dalam menganalisis kesulitan siswa menyelesaikan soal fisika bergambar menggunakan teori polya yang memiliki empat tahap penyelesaian, yaitu pemahaman masalah, pemikiran suatu rencana, pelaksanaan rencana dan peninjauan kembali. Penelitian ini bertujuan untuk menganalisis kesulitan siswa dalam menyelesaikan soal fisika bergambar dan menganalisis bentuk kesulitan yang di alami siswa. Metode yang digunakan dalam penelitian ini adalah deskriptif. Dari hasil penelitian didapatkan bahwa siswa banyak mengalami kesulitan dalam menyelesaikan soal fisika bergambar sebesar 86,67%. Siswa kesulitan dalan menuliskan diketahui dan ditanya dari soal, kesulitan mengubah bentuk sistematis soal, kesulitan memahami simbol fisika, kesulitan menentukan rumus, kesulitan mensubsitusikan angka ke dalam rumus dan siswa banyak tidak melakukan pengecekan kembali terhadap jawaban. Kata kunci : Kesulitan, Teori Polya, Soal Fisika Bergambar ABSTRACT Learning difficulties in solving problems can be defined as a condition that prevents students from utilizing the information in the questions to resolve the issues presented, due to disruptions that hinder their learning. The ability to solve pictorial problems is a skill that involves understanding theories and concepts of physics through images, as well as the students' proficiency in calculations related to the material studied. In analyzing students' difficulties in solving pictorial physics problems, Polya's theory, which consists of four stages of problem-solving-understanding the problem, devising a plan, executing the plan, and reviewing the solution-was employed. This study aims to analyze students' difficulties in solving pictorial physics problems and to examine the types of difficulties experienced by the students. The method used in this research is descriptive. The results indicate that students face significant challenges in solving pictorial physics problems, with a difficulty rate of 86.67%. Students struggle with identifying knowns and unknowns in the questions, converting problems into systematic forms, understanding physics symbols, determining formulas, substituting numbers into formulas, and many do not perform a review of their answers. Keywords: Difficulties, Polya's Theory, Pictorial Physics Problems
Robot Inverted Pendulum Beroda Dua (IPBD) dengan Kendali Linear Quadratic Regulator (LQR) FAHMIZAL, FAHMIZAL; ARROFIQ, MUHAMMAD; ADRIAN, RONALD; MAYUB, AFRIZAL
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 7, No 2: Published May 2019
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v7i2.224

Abstract

ABSTRAKMakalah ini memaparkan proses pemodelan robot inverted pendulum beroda dua (IPBD) menggunakan dinamika Lagrange. Setelah sistem model robot IPBD diperoleh, teknik kendali optimal dalam hal ini menggunakan linear quadratic regulator (LQR) digunakan untuk melihat step respon sistem dan tanggapan respon sistem terhadap gangguan. Sebelum kendali LQR diimplementasikan, simulasi menggunakan Simulink Matlab dilakukan untuk mendapat parameter gain K pada kendali LQR. Selanjutnya, dengan mengubah-ubah matriks pembobot Q akan diperoleh variasi gain K. Pada penelitian ini dilakukan variasi matriks pembobotan Q sebanyak lima jenis. Sedangkan matriks elemen R dituning dengan nilai satu. Dari hasil pengujian diperoleh bahwa dengan membesarkan pembobotan matriks Q, dihasilkan respon menuju keadaan steady lebih cepat dan overshoot berkurang. Parameter gain K dari hasil simulasi selanjutnya akan diimplementasikan secara embedded programming ke dalam Arduino Uno pada sistem robot IPBD.Kata kunci: Inverted pendulum beroda, Pemodelan, LQR ABSTRACTThis paper describes the process of modeling two-wheeled pendulum inverted robots (IPBD) using the Lagrange dynamics. After the IPBD robot model system was obtained, the optimal control technique in this case using a linear quadratic regulator (LQR) was used to see the system response step and the response of the system response to interference. Before the LQR control is implemented, simulation using Matlab Simulink is conducted to get the gain K parameter on the LQR control. Furthermore, by varying the weighting matrix Q, the gain variation K will be obtained. There are five types of Q weighting matrix in this research and the R element matric is tuned with a value of 1. From the test, obtained results show that by raising the weighting matrix Q is produced a faster response to the steady state and overshoot is reduced. At the final stage, the gain K parameter from the simulation results will be implemented by embedded programming into Arduino Uno on the IPBD robot system.Keywords: Wheeled inverted pendulum, Modelling, LQR
Kendali Logika Fuzzy pada Car Like Mobile Robot (CLMR) Penjejak Garis FAHMIZAL, FAHMIZAL; MURTI, BUDI BAYU; PRATAMA, DONNY BUDI; MAYUB, AFRIZAL
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 6, No 3: Published September 2018
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v6i3.451

Abstract

ABSTRAKMakalah ini memaparkan perancangan sistem kendali logika fuzzy untuk mengatur kecepatan dan arah sudut steering pada car like mobile robot (CLMR) dengan menggunakan metode Ackermann steering. CLMR penjejak garis dirancang menggunakan 16 buah photodiode, dan terdapat 7 buah membership fuzzfikasi dari pembacaan error dan last error sehingga terbentuk 49 aturan. Untuk menguji perfoma kendali fuzzy pada sistem CLMR dalam mengikuti lintasan garis maka dilakukan pengujian dengan bentuk lintasan berupa garis lurus dan berbelok serta zig-zag dalam satu lintasan putar. Proses variasi nilai keanggotaan fuzzifikasi masukan dan defuzzifikasi keluaran dilakukan sebanyak lima kali. Dari hasil pengujian diperoleh bahwa kendali logika fuzzy yang diaplikasikan pada sistem mampu membuat pergerakan CLMR sukses mengikuti lintasan uji selama 9,38 detik lebih baik 0,53 detik dari kendali PID. Selanjutnya, hasil rancangan sistem CLMR ini merupakan sebuah prototipe self-driving car.Kata kunci: car like mobile robot, robot penjejak garis, fuzzy, self-driving car ABSTRACTThis paper describes the design of a fuzzy logic control system to adjust the speed and direction of the angle of the steering on the car like mobile robot (CLMR) using the Ackermann steering method. CLMR line tracking is  designed using 16 photodiode pieces, and there are 7 fuzzfication membership from reading error and last error so that 49 rules are formed. To test the fuzzy control performance on the CLMR system in following the line trajectory, it was tested with the form of a straight line and a turn and a zigzag in a rotary track. The process of varying input membership fuzzification values and output defuzzification is done five times. From the test results, it was found that the fuzzy logic control applied to the system was able to make CLMR movement successfully followed the test path for 9.38 seconds better than 0.53 seconds of PID control. Furthermore, the results of the CLMR system design are a prototype self-driving car.Keywords: car like mobile robot, line tracking robot, fuzzy, self-driving car
Kinematika dan Antarmuka Robot SCARA Serpent MAYUB, AFRIZAL; SYAHRONI, IVAN; FAHMIZAL, FAHMIZAL; ARROFIQ, MUHAMMAD
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 8, No 3: Published September 2020
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v8i3.561

Abstract

ABSTRAKPenelitian ini menyajikan kendali pergerakan posisi dari robot SCARA Serpent menggunakan persamaan kinematika dan antarmuka berbasis Processing IDE. Antarmuka bertujuan untuk memudahkan dalam pengendalian robot SCARA Serpent dan mendapatkan data koordinat objek. Data ini digunakan sebagai masukan persamaan kinematika balik untuk menentukan besar sudut tiap joint. Untuk mendapatkan hasil pergerakan robot SCARA Serpent yang baik, kendali Proporsional, Integral, Differensial (PID) diterapkan dalam mengendalikan posisi setiap joint-nya. Pada pengujian, robot SCARA Serpent diuiji dengan tiga pengujian, yaitu pengujian sudut joint, pengujian koordinat end-effector, dan pengujian kendali PID. Dari hasil pengujian, sistem dapat berjalan dengan baik. Hasil parameter kendali PID diperoleh dengan tuning secara eksperimental dengan parameter Kp=5.5, Ki=0.001 dan Kd=10 untuk sudut joint shoulder pada robot SCARA Serpent menuju error steady state bernilai nol.Kata kunci: SCARA Serpent, Kinematika, Antarmuka, Kendali PID. ABSTRACTThis paper presents position control of the SCARA Serpent robot using kinematics equations and Processing IDE-based interfaces. The interface aims to make it easier in controlling the SCARA Serpent robot and to get object coordinate data. This data are used as input to the reverse kinematics equation to determine the angle of each joint. To get good SCARA Serpent robot movement results, Proportional, Integral, Differential (PID) control is applied in controlling the position of each joint. In the testing, the SCARA Serpent robot is tested with three tests, namely joint angle testing, end- ffector coordinate testing, and PID control testing. From the test results, the system can run well. The results of the PID control parameters were obtained by experimental tuning with parameters Kp = 5.5, Ki = 0.001 and Kd = 10 for the joint shoulder angle of the SCARA Serpent robot towards zero steady state error.Keywords: SCARA Serpent, Kinematics, Interface, PID Controller.
Validation of the Kaba Volcanic Eruption Disaster Mitigation E-Module as a Learning Media on Volcano Materials Purwaningsih; Johan, Henny; Mayub, Afrizal
Kasuari: Physics Education Journal (KPEJ) Vol. 8 No. 1 (2025): June 2025
Publisher : Universitas Papua, Jurusan Pendidikan Fisika FKIP Unipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37891/kpej.v8i1.849

Abstract

Indonesia is on the path of the "Pacific Ring of Fire," so it has a high risk of catastrophic volcanic eruptions. One of the active volcanoes that has the potential to have a big impact is Mount Kaba. To improve students' understanding of disaster mitigation, this study aims to develop and validate a science learning e-module about volcanoes that is integrated with the disaster mitigation of the eruption of Mount Kaba. This study uses a qualitative descriptive method with a 4D model Research and Development (R&D) approach, which consists of the Define, Design, Develop, and Disseminate stages, but only carried out until the development stage, namely validation. Data was collected through observations, questionnaires, and interviews involving teachers and validators from among disaster mitigation and science education experts. The validation results show that the e-module obtained an average score of 92% with the category "Very Feasible" based on the feasibility of content, language, and graphic display. These results indicate that the e-module has great potential as a learning medium for disaster mitigation in schools.
PERBEDAAN VARIASI SAMPAH SAWI DAN PEPAYA SEBAGAI PAKAN CACING TANAH (Lumbricus rubellus) TERHADAP KUALITAS VERMIKOMPOS Nurcahyani; Ruyani, Aceng; Johan, Henny; Mayub, Afrizal; Parlindungan, Deni
Jurnal Tanah dan Sumberdaya Lahan Vol. 12 No. 2 (2025)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2025.012.2.14

Abstract

The purpose of this study was to determine the NPK value, biomass increase, and pH as the effect of the use of variations in Chinese cabbage and papaya waste feed to reduce environmental pollution and also increase the benefits of organic waste, and organic vegetable and fruit waste has the potential to fertilize the soil. This study was conducted on July 22, 2024 to August 19, 2024 at the Sumber Belajar Ilmu Hayati Ruyani (Bengkulu) and used the RAL (Complete Randomized Design) research method. Data analysis was carried out using an analytical balance, pH paper, and NPK level testing carried out at the Soil Science Laboratory, University of Bengkulu on November 18, 2024 using the methods, namely Nitrogen (Kjeldahl or spectrophotometric method), Phosphorus (Sulfuric acid method followed by spectrophotometric method), Potassium (Extraction method followed by analysis using spectrophotometry). The results of the study showed that the highest NPK levels in sequence were Nitrogen (N) 2.05% in the 100% (Chinese cabbage) feed variation, Phosphorus (P) 0.58% in the 75% (papaya): 25% (Chinese cabbage) feed variation and potassium (K) 0.40% in the 50% (Chinese cabbage): 50% (papaya) feed variation. The highest biomass increase was obtained in the 100% (papaya) feed variation with a weight increase of 27.4g and the highest pH in the 100% (papaya) variation of 6.8 in the normal category. Based on the results of data analysis, it can be concluded that the addition of earthworms Lumbricus rubellus in making vermicompost can degrade Chinese cabbage and papaya waste into usable products, and the use of Chinese cabbage and papaya waste as feed in making vermicompost can increase NPK levels, Biomass and soil pH.
Pengembangan E-Modul Fisika Berbasis AR Terintegrasi Mitigasi Bencana Tanah Longsor untuk Penguasaan Konsep dan Kesiapsiagaan Maulana, Yudi; Mayub, Afrizal; Johan, Henny
COMPTON: Jurnal Ilmiah Pendidikan Fisika Vol 11 No 2 (2024): 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.v11i2.20169

Abstract

This study aims to develop an Augmented Reality (AR)-based physics e-module that integrates landslide disaster mitigation within the topic of work and energy to improve students’ conceptual mastery and disaster preparedness. To support contextual learning, the study also identifies the predominant frequency (f₀), amplification factor (A0), and seismic vulnerability index (Kg) at MAN Insan Cendekia Bengkulu Tengah using the microtremor method. The development followed the 4D model Define, Design, Develop, and Disseminate including needs analysis, product design, expert validation, and both limited and large-scale trials. Expert validation showed the module was highly feasible, with scores of 99% for content and 97% for media. The large-scale trial involved 45 students, namely 30 in the experimental group using the AR-based e-module and 15 in the control group using printed textbooks. Results indicated that the experimental group achieved an average N-Gain of 0.470 (moderate), with 70% of students in the moderate to high category. In contrast, the control group obtained an N-Gain of only 0.180 (low). An independent t-test showed a statistically significant improvement within the experimental group (p = 0.001) and a significant difference between groups (p = 0.000). The Chi-Square test revealed significant differences in cognitive (p = 0.000) and conative (p = 0.003) aspects, while the affective aspect remained statistically insignificant. Overall, the AR-based e-module proves to be a relevant and effective tool to strengthen students’ conceptual understanding and readiness in responding to disaster risks through contextual physics education
Co-Authors ACENG RUYANI Aniliawati, Ur Arsela Eko Listiono BHAKTI KARYADI Budi Bayu Murti Budiyanto, Ma’un Deddy Bakhtiar, Deddy Defianti, Aprina Delima, Ega Marita Dinata, Kristian Eko Risdianto Elsi Adelia Fitri Esra, Gracia Fahmizal, Fahmizal Farid, Muchammad Firdaus, M. Lutfhi Firdaus, Mochamad Lutfi Funny Farady Coastera, Funny Farady Henny Johan Herawati, Asmida Iwan Setiawan Lazfihma, Lazfihma M. Farid, M. M. Lutfi Firdaus, M. Lutfi Malau, Defi Dormasi Maulana, Yudi Muhammad Arrofiq Nirwana, Nirwana Noviana, Noni Nurcahyani Nurhamidah Nursa'adah, Euis Nursa’adah, Euis Parlindungan, Deni Pistira, Pistira PRATAMA, DONNY BUDI Pratiwi, Revika Julia Purwaningsih Rijalussalam, Dhiya Uddin Riska, Dara Ronald Adrian, Ronald Silaban, Sintiana Sudirman Sudirman Sutarno Sutarno SYAHRONI, IVAN Umaya Umaya, Umaya Wardana, Rendy Wikrama wati, Devica Wikrama Whardana, Rendy Wirahayu, Maya