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POTENSI SEKAM PADI DAN JERAMI SEBAGAI ALTERNATIF MATERIAL AKUSTIK Rohim, Ahmad Minanur; Fianti, Fianti; Nurbaiti, Upik
Physics Education Research Journal Vol 2, No 1 (2020)
Publisher : Faculty of Science and Education, UIN Walisongo Semarang

Technology that is increasingly developing produces equipments in the form of information, communication, production, transportation and entertainment facilities. Most of the equipments produce noises. Noise can be reduced by using acoustic dampers. This study aims to determine the potential for sound absorption from rice husks and straw as natural acoustic materials. Materials used include rice husks, rice straw, and resin. 12 cylindrical samples were made. Samples that have been made are tested using a sound absorption measuring instrument that is the impedance tube to measure the value of the sample sound absorption coefficient. The test results show the value of the sound absorption coefficient (?) can be influenced by the thickness. At a frequency of 500 Hz the value of the sound absorption coefficient (?) for each sample is 0.034dB; 0.030dB; 0.030dB; 0.027dB; 0.026dB; 0.027dB; 0.025dB; 0.025dB; 0.025dB; 0.024dB; 0.024dB; 0.023dB; 0.023dB. The sample material is good in research on materials 1 and 2 which have a sound absorption of 0.034 dB and 0.030 dB.

RANCANG BANGUN ALAT PENDETEKSI SUHU DAN KELEMBABAN BERBASIS NODEMCU PADA BUDIDAYA JAMUR TIRAM Rohim, Ahmad Minanur; Sulhadi, Sulhadi; Darsono, Teguh
Phenomenon : Jurnal Pendidikan MIPA Vol 9, No 2 (2019): Jurnal Pendidikan MIPA
Publisher : Sains and Technology Faculty, Walisongo State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/phen.2019.9.2.4636

Penelitian ini bertujuan menghasilkan alat pendeteksi suhu dan kelembaban terintegrasi dengan internet berbasis NodeMCU melalui WEB sebagai media informasi pada budidaya jamur tiram. Alat pendeteksi suhu dan kelembaban telah dikembangkan dengan mengkombinasikan sensor DHT11, NodeMCU, dan sketch program Arduino IDE sebagai pengirim data ke WEB dan relay sebagai saklar pompa. Hasil eksperimen telah memperlihatkan data pada WEB serta relay dapat menyalakan pompa saat alat mendeteksi kelembaban <80% dapat menyirami rak jamur tiram sedangkan saat alat mendeteksi kelembaban >80% relay mematikan pompa dan hasil panen tanpa perlakuan rata-rata perhari 1kg sedangkan dengan perlakuan rata-rata perhari 2kg. Demikian dapat disimpulkan alat pendeteksi suhu dan kelembaban mampu memberikan informasi dan membantu menaikkan hasil panen petani jamur tiram.

Improved Understanding of Student's Learning Concept and Motivation in Inclined Plane Material by PhET Simulation Rohim, Ahmad Minanur; Ellianawati, Ellianawati
Physics Communication Vol 4, No 2 (2020): August 2020
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v4i2.29310

This research is aimed to improve the understanding of the concept and the motivation of learning physics students on inclined plane material class of Eighth grade of MTs NU I'anatuth-Thullab Mutih Kulon Demak School Year of 2020/2021. This study conducted at the eighth grade of students as the subject consisting of 29 students. This class action research was conducted as much as one cycle consisting of three meetings. The results of pretest data were given moments before the implementation of virtual laboratory media. Based on PhET (Physics Education Technology) simulation, the researcher got different results with the posttest given after the implementation of learning using virtual laboratory media by using PhET. The results of the pretest reached 25% on understanding of student concepts, and there was increased after using the media through posttest which is 75%. There was increased on percentage through understanding of student concepts in inclined plane materials using virtual laboratory media by 50%, the percentage of student learning motivation increased on inclined plane material by 28%, and in the data after using virtual laboratory media got a good category at 76%.

Improved Understanding of Student's Learning Concept and Motivation in Inclined Plane Material by PhET Simulation Rohim, Ahmad Minanur; Ellianawati, Ellianawati
Physics Communication Vol 4, No 2 (2020): August 2020
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v4i2.29310

This research is aimed to improve the understanding of the concept and the motivation of learning physics students on inclined plane material class of Eighth grade of MTs NU I'anatuth-Thullab Mutih Kulon Demak School Year of 2020/2021. This study conducted at the eighth grade of students as the subject consisting of 29 students. This class action research was conducted as much as one cycle consisting of three meetings. The results of pretest data were given moments before the implementation of virtual laboratory media. Based on PhET (Physics Education Technology) simulation, the researcher got different results with the posttest given after the implementation of learning using virtual laboratory media by using PhET. The results of the pretest reached 25% on understanding of student concepts, and there was increased after using the media through posttest which is 75%. There was increased on percentage through understanding of student concepts in inclined plane materials using virtual laboratory media by 50%, the percentage of student learning motivation increased on inclined plane material by 28%, and in the data after using virtual laboratory media got a good category at 76%.

Changes in Students' Cognitive Structure on the Concept of Diffraction and Light Interference Using PhET Virtual Simulation Syifa, Almira; Darma Putra, Ngurah Made; Darsono, Teguh; Rohim, Ahmad Minanur
Physics Education Research Journal Vol 5, No 1 (2023)
Publisher : Faculty of Science and Education, UIN Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/perj.2023.5.1.13658

The concept of diffraction and interference of light is one of the abstract concepts of physics. The process of light diffraction and interference occurs in the abstract. Learning about diffraction and light interference requires media that represent the events. Cognitive structures can represent the quality of students' understanding. Learning Physics is easier to understand through direct experience in the form of practicum. Abstract Physics concepts will be easier to learn with the appropriate visualization. One of the virtual practicums' media uses PhET virtual simulations to improve students' cognitive structure is measured using concept map questions and supported by description questions. The purpose of this research is to increase the cognitive structure of students by using PhET. This research is quantitative research and the experimental design used the experiment method. There are three groups in the experiment, that is a virtual simulation, a real practicum as an experiment class, and a control class. The results of the one-way ANOVA test on the concept map questions showed a significance value (p) 0.05, meaning that there were differences in cognitive structure between groups. The significance value (p) between the virtual simulation group and the real practicum group was 0.014, while the significance value between the virtual simulation group and the control class was 0.00, meaning that there was a significant difference in learning effectiveness between groups. Based on the data of the research concluded that physics learning assisted by virtual simulations can develop students' cognitive structures on the concepts of diffraction and light interference.

Design and Implementation of Siprakfis (Physics Laboratory Practical Management Information System) to Optimize Practical Services in Higher Education Widyastuti, Widyastuti; Rofiudin, Muhammad; Rohim, Ahmad Minanur
Physics Education Research Journal Vol. 6 No. 2 (2024)
Publisher : Faculty of Science and Education, UIN Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/perj.2024.6.2.21570

Physics laboratories often face difficulties managing practicums, especially in scheduling, equipment tracking, assessment, and evaluation of practicum results. The mismatch between practicum needs and resource availability usually results in delays, administrative errors, and increased workload of laboratory staff. This study proposes the development of a Physics Laboratory Practicum Management Information System (SIPRAKFIS) to optimize practicum management in physics laboratories. The research method used is R&D with a waterfall development model, which includes communication, planning, modeling, construction, and deployment stages. SIPRAKFIS was developed using the PHP MySQL programming language. System testing was done through unit testing, functionality, usability, and implementation. The study results indicate that SIPRAKFIS is feasible to use in practicum management and can be accessed online via www.labfisikauin.com. Unit testing on the login system was declared victorious. Functional testing obtained good results, namely a functional value of 1. Usability testing obtained a value of 82.59%. Deployment testing showed that the system can be run on various browsers, namely Mozilla Firefox, Google Chrome, and Internet Explorer. SIPRAKFIS can help facilitate the management of practicum services, reduce administrative errors, speed up the practicum scheduling process, and facilitate equipment monitoring and reporting of practicum values. The results of this study can also be further developed for research and testing services.

Smart Library Service Based on Quick Response Code on Smartphone Anwar, Edi Daenuri; Khalif, Muhammad Ardhi; Maulana, Andika Rifki; Rohim, Ahmad Minanur
Jurnal Penelitian Pendidikan IPA Vol 11 No 7 (2025): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i7.10860

This study aims to develop a QR Code-based Smart Library software as a valid library service so that it can be used optimally in supporting library collection search and management activities. This Smart Library development research uses the Research and Development (R&D) method with the Unified Modeling Language (UML) development approach. The stages of this research include problem identification, data collection, system design, program creation, and testing stages. At the creation stage, the QR Code was developed using Quick Response Code Maker which was then integrated into the digital library system. The main software in the development of this Smart Library was built using Android Studio. Supporting facilities owned by Smart Library include the ability to display book collection metadata, display a list of collections based on the shelf number searched, and provide access to e-books from the library collection. This system also allows users to scan QR Codes directly via smartphones to get detailed information about available books. The results of the system test show that all application activities and performance run well and are in accordance with their functional needs. This QR Code-based Smart Library application program can produce output as expected and has fulfilled the basic functions of a smart library-based library service. Therefore, this QR Code-based Smart Library software development system is declared valid and suitable for use as an efficient library service solution.

Changes in Students' Cognitive Structure on the Concept of Diffraction and Light Interference Using PhET Virtual Simulation Syifa, Almira; Darma Putra, Ngurah Made; Darsono, Teguh; Rohim, Ahmad Minanur
Physics Education Research Journal Vol. 5 No. 1 (2023)
Publisher : Faculty of Science and Education, UIN Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/perj.2023.5.1.13658

The concept of diffraction and interference of light is one of the abstract concepts of physics. The process of light diffraction and interference occurs in the abstract. Learning about diffraction and light interference requires media that represent the events. Cognitive structures can represent the quality of students' understanding. Learning Physics is easier to understand through direct experience in the form of practicum. Abstract Physics concepts will be easier to learn with the appropriate visualization. One of the virtual practicums' media uses PhET virtual simulations to improve students' cognitive structure is measured using concept map questions and supported by description questions. The purpose of this research is to increase the cognitive structure of students by using PhET. This research is quantitative research and the experimental design used the experiment method. There are three groups in the experiment, that is a virtual simulation, a real practicum as an experiment class, and a control class. The results of the one-way ANOVA test on the concept map questions showed a significance value (p) <0.05, meaning that there were differences in cognitive structure between groups. The significance value (p) between the virtual simulation group and the real practicum group was 0.014, while the significance value between the virtual simulation group and the control class was 0.00, meaning that there was a significant difference in learning effectiveness between groups. Based on the data of the research concluded that physics learning assisted by virtual simulations can develop students' cognitive structures on the concepts of diffraction and light interference.

Design and Implementation of Siprakfis (Physics Laboratory Practical Management Information System) to Optimize Practical Services in Higher Education Widyastuti, Widyastuti; Rofiudin, Muhammad; Rohim, Ahmad Minanur
Physics Education Research Journal Vol. 6 No. 2 (2024)
Publisher : Faculty of Science and Education, UIN Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/perj.2024.6.2.21570

Physics laboratories often face difficulties managing practicums, especially in scheduling, equipment tracking, assessment, and evaluation of practicum results. The mismatch between practicum needs and resource availability usually results in delays, administrative errors, and increased workload of laboratory staff. This study proposes the development of a Physics Laboratory Practicum Management Information System (SIPRAKFIS) to optimize practicum management in physics laboratories. The research method used is R&D with a waterfall development model, which includes communication, planning, modeling, construction, and deployment stages. SIPRAKFIS was developed using the PHP MySQL programming language. System testing was done through unit testing, functionality, usability, and implementation. The study results indicate that SIPRAKFIS is feasible to use in practicum management and can be accessed online via www.labfisikauin.com. Unit testing on the login system was declared victorious. Functional testing obtained good results, namely a functional value of 1. Usability testing obtained a value of 82.59%. Deployment testing showed that the system can be run on various browsers, namely Mozilla Firefox, Google Chrome, and Internet Explorer. SIPRAKFIS can help facilitate the management of practicum services, reduce administrative errors, speed up the practicum scheduling process, and facilitate equipment monitoring and reporting of practicum values. The results of this study can also be further developed for research and testing services.

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