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All Journal Indonesian Journal of Science and Mathematics Education JURNAL PENDIDIKAN TAMBUSAI Pillar of Physics Education : Jurnal Berkala Ilmiah Pendidikan Fisika Journal of Experimental and Applied Physics
Mairizwan, Mairizwan
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Control & Systems Engineering Education Electrical & Electronics Engineering Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Improving the Capacity of Physics Teachers in the Development of Laboratory Experiment Kits Based on Video Analysis and Modeling Tool Mairizwan, Mairizwan; Kamus, Zulhendri; Asrizal, Asrizal; Yohandri, Yohandri
PILLAR OF PHYSICS EDUCATION Vol 16, No 3 (2023)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/2632171074

Abstract

Science subjects really need a learning model that makes students learn a lot from experience, not from verbal speeches and memorizing concepts given by the teacher. Experience can only be gained through practical activities and experiments which can ultimately improve students' science process skills. The reality in the field shows that physics experimental activities cannot be carried out optimally because a lot of equipment cannot be operated, the number of experimental sets is not enough and the equipment needed is quite expensive. The aim of this research is to increase teachers' skills in developing low-cost laboratory experimental kits by combining technology from video analysis and modeling tools with the research object being the physics MGMP teachers of Agam district. Implementation stages include providing training/workshops, practical implementation and evaluation of results. After carrying out this activity stage, the results obtained are video analysis products from participants and student worksheets. The results of this research can be analyzed and concluded that physics teachers' understanding and skills in carrying out video-based practical activities have increased due to limited practical equipment in the laboratory. The increase in participants' understanding can be seen from the results and their satisfaction with the implementation of laboratory experiment kit development activities based on video analysis and modeling tools. Therefore, improving these skills has a very good impact on teachers to increase learning variations that attract students' interest, and assist students in understanding Physics concepts correctly and being able to find their best potential
Characteristic Test of TCS230 Color Sensor as Freshness Detection for Mackerel Fish Rambe, Indah Anggraini; Yulkifli, Yulkifli; Asrizal, Asrizal; Mairizwan, Mairizwan
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v9i1.25601

Abstract

Ikan merupakan sumber protein hewani yang penting bagi manusia, namun ikan rentan terhadap pembusukan. Oleh karena itu, diperlukan suatu metode yang cepat dan akurat untuk mendeteksi kesegaran ikan. Salah satu indikator kesegaran ikan adalah perubahan warna. Penelitian ini bertujuan untuk menguji karakteristik sensor warna TCS230 sebagai pendeteksi kesegaran ikan berdasarkan perubahan warna. Metode pengujian meliputi kalibrasi, pengukuran presisi, dan akurasi sensor TCS230 menggunakan lima variasi warna pada kertas uji, serta pengujian langsung pada sampel ikan segar, kurang segar, dan busuk. Hasil pengujian menunjukkan bahwa sensor TCS230 memiliki akurasi sebesar 98,83% dan presisi sebesar 98,3% dalam mendeteksi perubahan warna. Pada pengujian ikan, sensor berhasil mengidentifikasi kesegaran ikan berdasarkan perubahan warna kulit dan daging dengan konsistensi yang baik. Berdasarkan hasil tersebut, sensor TCS230 memiliki potensi yang baik sebagai pendeteksi kesegaran ikan yang cepat dan akurat.
Design of an Air Quality Monitoring System for Carbon Monoxide Gas and PM10 Particles Az-Zahra, Khalishah Raudhatul; Yulkifli, Yulkifli; Sudiar, Nofi Yendri; Mairizwan, Mairizwan
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v9i1.25602

Abstract

Udara mempunyai peranan yang sangat penting bagi kehidupan makhluk hidup, oleh karena itu udara sebagai sumber daya yang sangat penting harus dijaga dan dilindungi. Untuk mendapatkan udara yang sesuai dengan tingkat kualitas yang diinginkan maka pengendalian udara penting untuk dilakukan. Penelitian ini bertujuan untuk merancang dan membangun sistem monitoring kualitas udara yang mampu mendeteksi gas karbon monoksida (CO) dan partikel debu PM10 menggunakan sensor MQ-7 dan Sharp GP2Y1010AU0F. Sistem monitoring yang dikembangkan dirancang untuk memberikan hasil pengukuran secara langsung dengan cara membandingkan nilai fisis yang terukur oleh sensor dengan instrumen standar untuk evaluasi akurasi dan presisi. Implementasi sistem dilengkapi dengan interface aplikasi Blynk yang memudahkan monitoring data secara realtime. Hasil penelitian menunjukkan bahwa sensor yang digunakan pada sistem monitoring ini mempunyai tingkat linearitas yang baik dalam mengukur gas CO dan PM10. Spesifikasi perancangan sistem juga menunjukkan tingkat akurasi dan presisi yang tinggi dalam mengukur parameter suhu, kelembaban, karbon monoksida dan PM10.
The Improvement of The Competency of Science Teachers Using Science KIT: Optimizing Scientific Learning Dewi, Wahyuni Satria; Mairizwan, Mairizwan; Afrizon, Renol; Hidayati, Hidayati
Indonesian Journal of Science and Mathematics Education Vol. 4 No. 1 (2021): Indonesian Journal of Science and Mathematics Education
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijsme.v4i1.7956

Abstract

Based on observations and interviews with a science teacher at a junior high school in Pesisir Selatan Regency, it is known that there are still many science teachers who have not carried out practicum activities in scientific learning. Science kits are rarely used by teachers in science learning. The main reason is that the competence of science teachers in operating the science kit is still low. To improve the competence of science teachers in using KIT, it is very necessary to carry out activities to optimize the use of KIT for science teachers. The purpose of this study was to improve the competence of science teachers in using IPA KIT as a support for scientific learning. This type of research is a quasi-experimental design with a pretest-posttest using multiple choice test instruments at the beginning and at the end of the study. From the results of this study, it is known that there is an increase in the competence of science teachers in using science kits, with the percentage increase of 29.25%.
Comparison of Power Absorption Effectiveness of Dynamic Solar Panels and Static Solar Panels at an Angle of 15° Fauzi, Wulan Aulia; Mairizwan, Mairizwan; Yulkifli, Yulkifli
Journal of Experimental and Applied Physics Vol 2 No 2 (2024): June Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i2.56

Abstract

This study aims to determine the performance specifications and design of the measurement system so that it can measure the effectiveness of the two panel systems. The performance specifications of this system use 2 20Wp solar panels for both systems, namely static solar panels and dynamic systems, namely dual-axis solar trackers. Voltage and current measurements use INA219 sensors and are displayed and stored using a serial Bluetooth terminal as a data logger. Design specifications for The results of this linearity test show very satisfactory results in terms of measurements on voltage and current parameters, namely the R-Square value, which reaches 1 and 0.99. The accuracy of the INA219 sensor is 97.78% for voltage and 96.21% for current. The precision of the INA219 sensor for voltage is 100% and 91% for current. Based on these data, it can be said that this tool works well. The measurement results of the increase in solar panel power absorption are compared between the static solar panel system at an angle of 15 ° to the north and the dynamic solar panel system with the dua- axis solar tracker method. The power generated by the static solar panel system is 3229.81 watts, and the power generated by the dual-axis solar tracker system is 3865.92 watts, with a percentage increase in power of 19.7%. It can be concluded that the dual-axis solar tracker system is more efficient in generating power compared to static systems.
Design of a modeling tool for wheel connected with a belt using speed and time control for video tracker analysis Sari, Reza Novita; Asrizal, Asrizal; Amir, Harman; Mairizwan, Mairizwan
Journal of Experimental and Applied Physics Vol 2 No 3 (2024): September Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i3.63

Abstract

The influence of the advances of science produces technological innovations that leverage on education, economics, social and self-development. In education, design of laboratory experimental modeling tools continues to be carried out by researchers to improve learning effectiveness. Wheel movement experiments related to belts include one of physic learning activities. The parameter measured from the creation of modeling tool is the wheel speed and analysis of wheel motion related to the belt. The system can be controlled in speed and time using Blynk application. Video recordings are used as circular motion analysis material on Tracker applications. The design of system is a box size 35 cm in length, 20 cm in width and 18 in height consisting of one switch, LCD, and two wheels connected by a belt. Wheel 1 has a diameter of 15 cm and wheel 2 is 10 cm. Based on data analysis, the results of physical parameters were obtained with high accuracy and precision values using standard measuring instruments, namely tachometers, calculation of the theoretical formula. The system's precision was 98.84% and speed accuracy for 30 rpm, 50 rpm and 80 rpm were 99.3%, 99.19% and 99.93%. Frequency values increased according to the increase in input speed and compared to the reverse period.  The angle speed will increase as the wheel spokes become smaller. So, the wheel modeling tool related to the belt using speed and time control with the Blynk application as well as the Tracker video alysis can work effectively and validly.
Design and Build an Automatic Feeding System for Catfish Farming based-on Internet of Things (IoT) Fajri, Mukhlis Surito; Asrizal, Asrizal; Amir, Harman; Mairizwan, Mairizwan
Journal of Experimental and Applied Physics Vol 2 No 4 (2024): December Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i4.64

Abstract

Fish farming represents a sector aimed at boosting the national economy. The Ministry of Marine Affairs and Fisheries has prioritized programs to support the growth of catfish farming.. However, there are still obstacles experienced by cultivators such as irregularities in feeding time and uneven distribution of feed. Therefore, a solution is needed in the form of designing an efficient system in providing fish feed. The system is developed using ESP32 microcontroller, servo motor, stepper motor, loadcell, and connected to the website for remote control. The system utilizes a motor, load cell, and is integrated with a website for remote operation. This research employs an engineering approach, focusing on system design and testing. The findings indicate that the system achieves an average feed weight measurement accuracy of 98.31%, demonstrating reliable performance in both laboratory and field-scale tests. This system is expected to increase efficiency, practicality, and effectiveness in catfish farming, as well as providing real-time information about feed and feeding schedules.
Using Sensors with the Internet of Thing for Earthquake Detection System : A Systematic Literature Review Putri, Shinta Maharani; Asrizal, Asrizal; Amir, Harman; Mairizwan, Mairizwan; Fitri, Mutiara Nurul
Journal of Experimental and Applied Physics Vol 2 No 4 (2024): December Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i4.73

Abstract

Every human being needs safety in their lives from all disasters. However, earthquakes are the most impactful geological natural phenomena that can threaten human safety. One solution is to utilize an earthquake detection system to anticipate such disasters by utilizing sensor technology and the Internet of Thing (IoT). The purpose of this research is to evaluate the effectiveness of various earthquake detection technologies, including vibration sensors such as SW-420, MAG3110, DHT11, ADXL335 Accelerometer, HC-SRO4, and 801S vibration sensor, as well as IoT integration in early warning systems. The method used is Systematic Literature Review (SLR) with PRISMA design, including the steps of identification, screening, eligibility, and analysis of articles taken from the Google Scholar database for publications in 2018-2024. The results showed that the application of technologies such as Fuzzy Logic and vibration sensors, as well as IoT integration, significantly improved the effectiveness of earthquake detection and warning.
Compact Spectrophotometer Using TEMT600 Sensor for Protein Concentration Measurement Matondang, Anggun Sisri Br.; Yulkifli, Yulkifli; Mairizwan, Mairizwan; Sari, Mona Berlian
Journal of Experimental and Applied Physics Vol 2 No 4 (2024): December Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i4.74

Abstract

A simple spectrophotometer utilizing a white LED light source (520 nm wavelength) and a TEMT600 light sensor has been successfully developed to measure the concentration and absorbance of protein solutions. This device demonstrated an impressive average measurement accuracy of 96.26% for concentration and 95.97% for absorbance, making it highly effective for protein analysis. Despite its reliability, certain deviations were observed in the measurement results, primarily attributed to unpredictable environmental fluctuations and suboptimal sample preparation. These factors contributed to an average deviation of 3.74% for concentration and 4.25% for absorbance. While these deviations are relatively minimal and within an acceptable range, they highlight areas for potential improvement in future designs. Nevertheless, the tool is considered suitable for accurately measuring protein solution concentration and absorbance, proving its capability for laboratory or educational purposes. Its simplicity and cost-effectiveness make it a valuable device for routine protein analysis
Simulation of Silicon-Rubber and Boric Acid Composite Type Neutron Shields Thermal Absorpstion Efficiency Using NGCal Software Junita, Novia; Sari, Mona Berlian; Yulkifli, Yulkifli; Mairizwan, Mairizwan
Journal of Experimental and Applied Physics Vol 2 No 4 (2024): December Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i4.75

Abstract

Perisai neutron termal merupakan suatu struktur atau material yang memegang peranan penting dalam proteksi radiasi neutron termal untuk menghindari dampak negatif dari paparan radiasi secara langsung, baik terhadap lingkungan maupun kesehatan manusia. Pada penelitian ini, digunakan silikon-karet sebagai material utama perisai neutron, sedangkan asam borat berfungsi sebagai penyerap neutron termal, sehingga keakuratan informasi mengenai sifat redaman dan proteksi perisai neutron yang dirancang menjadi sangat penting. Beberapa parameter perisai radiasi yang harus dievaluasi dalam menentukan kinerja material perisai neutron yang difabrikasi antara lain faktor redaman massa, faktor redaman linier, dan lapisan nilai setengah. Perangkat lunak komputasi NGCal digunakan untuk mensimulasikan sifat dan parameter material perisai. Berdasarkan perhitungan yang dilakukan, dapat disimpulkan bahwa perisai dengan efisiensi tinggi adalah perisai dengan penggunaan rasio sorben yang lebih tinggi yaitu asam borat, sedangkan apabila rasio karet silikon lebih besar dari asam borat maka tingkat efisiensi penyerapan menurun, tetapi fleksibilitas mekanis perisai akan semakin baik. Ketebalan perisai neutron berhubungan langsung dengan nilai MAC dan LAC, dimana semakin tebal perisai maka nilai MAC dan LAC akan semakin tinggi, hal ini menyebabkan efisiensi penyerapan neutron termal oleh perisai neutron akan semakin meningkat apabila asam borat mendominasi pada komposit, namun apabila ketebalan perisai didominasi oleh karet silikon maka efisiensinya akan semakin menurun.
Co-Authors Asrizal Az-Zahra, Khalishah Raudhatul Fajri, Mukhlis Surito Fauzi, Wulan Aulia Fitri, Mutiara Nurul Harman Amir Hidayati Hidayati Junita, Novia Matondang, Anggun Sisri Br. Nofi Yendri Sudiar Putri, Shinta Maharani Rambe, Indah Anggraini Renol Afrizon Sari, Mona Berlian Sari, Reza Novita Wahyuni Satria Dewi Yohandri Bow Yulkifli Yulkifli Zulhendri Kamus