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All Journal RADIASI: Jurnal Berkala Pendidikan Fisika BERKALA FISIKA EDUSAINS TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Tadris: Jurnal keguruan dan Ilmu Tarbiyah Fibusi (Jurnal Online Fisika) Jurnal Matematika & Sains JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Indonesian Journal of Science and Technology Phenomenon : Jurnal Pendidikan MIPA Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Journal of Teaching and Learning Physics JIPF (Jurnal Ilmu Pendidikan Fisika) Jurnal Penelitian Pendidikan IPA (JPPIPA) JTERA (Jurnal Teknologi Rekayasa) Spektra: Jurnal Fisika dan Aplikasinya JURNAL EKSAKTA PENDIDIKAN (JEP) Jurnal Tarbiyah : Jurnal Ilmiah Kependidikan Jurnal Pendidikan Fisika dan Sains (JPFS) ABDI MOESTOPO: Jurnal Pengabdian pada Masyarakat Guiding World : Jurnal Bimbingan dan Konseling Jurnal Abmas Negeri (JAGRI) Pendikdas: Jurnal Pendidikan Dasar Online Learning in Educational Research PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Indonesian Journal of Physics (IJP) Unnes Science Education Journal Jurnal Pendidikan MIPA Jurnal Pendidikan Fisika Indonesia IJIS Edu : Indonesian Journal of Integrated Science Education Pedagogia : Jurnal Ilmiah Pendidikan Jurnal Elektronika dan Telekomunikasi
Lilik Hasanah
Universitas Pendidikan Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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DEVELOPMENT OF DC-DC BUCK CONVERTER FOR SOLAR PANEL ENERGY STORAGE THROUGH LOAD OPTIMIZATION AND FEEDBACK CIRCUIT Indrasari, Widyaningrum; Rama, Gusti; Setiadi, Rahmondia Nanda; Hasanah, Lilik; Sahari, Siti Kudnie
Spektra: Jurnal Fisika dan Aplikasinya Vol. 8 No. 3 (2023): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 8 Issue 3, December 2023
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.083.02

Abstract

Solar panels are crucial components in converting sun radiation into electrical energy through the photovoltaic effect. A solar panels cannot be connected directly to the load due to its low energy conversion efficiency and low output voltage. One of the methods used to control solar cells to operate efficiently at their maximum power point is MPPT. In this paper, we design a DC-DC converter by modifications of the Butterworth filter circuit and feedback circuit in the MPPT system for storing solar panel electrical using the Hill Climbing (HC) method. The device consists of a DC-DC buck converter circuit, two pieces of INA219 sensors, a DS18B20 temperature sensor, a MAX44009 light intensity sensor, a SD card module and a DS3231 RTC. The DC-DC buck converter circuit simulation is carried out to determine the optimal load. The load optimization was conducted by analyzing the AC simulation using Ltspice software. The magnitude of the output voltage ripple in nine different loads was observed. From the simulations performed, it was found that the 50 Ω load has an output voltage ripple of 8.96 mV and is smaller than the other loads. The main DC-DC buck converter circuit is designed using a butterworth low pass filter with a cut-off frequency of 1000 Hz (R = 50 Ω, L = 33.8 mH and C = 750 nF) and a feedback circuit with a cut-off frequency of 500 Hz is added. From the prototype measurement, it was found that the average output power was 3249,7 milliwatts and the average input power was 4779 milliwatts, thus the average efficiency was 68%. With these results, the DC-DC converter circuit configuration is suitable for use in electrical energy storage systems from solar panels that have high efficiency.
Integration of Project Based Learning with STEM Approach to Alternative Energy Material as Effective Learning to Improve Problem Solving Skills Roslina, Roslina; Liliawati, Winny; Hasanah, Lilik
Journal of Teaching and Learning Physics Vol 9, No 2 (2024): Journal of Teaching and Learning Physics (September 2024)
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jotalp.v9i2.26650

Abstract

This study aims to determine the effectiveness of STEM-PjBL learning in improving students' problem-solving abilities in alternative energy materials. This research was conducted in one of the high schools in the city of Bandung. Samples were obtained by rational sampling of 35 students in class X MIPA I (experimental class) and 35 students in class X MIPA II (control class). The method used is a quasi-experimental design with a non-equivalent control group design. Data collection technique is a description test in the form of pre-test and post-test. Based on data analysis it is known that the use of STEM-PjBL can improve students' problem solving skills (N-Gain = 0.65) in the experimental class compared to the control class (N)-Gain = 0.44). The t-test results with SPSS 22 with Sig. (2-value) less than 0.05 indicates that there is a significant difference in the increase in the problem solving ability of students in the experimental class and the control class. Based on these results, learning has a positive impact on students' problem solving abilities. STEM-PjBL learning can be used as an alternative teaching strategy at various school levels.
Metode Anotasi Visual Baru untuk Meningkatkan Akurasi Sistem Penentuan Posisi dalam Ruangan Berbasis Kamera Ramdhania, Lathifa Nur; Almadaniy, Hanif; Aminudin, Ahmad; Hasanah, Lilik
JTERA (Jurnal Teknologi Rekayasa) Vol 10, No 1: Juni 2025
Publisher : Politeknik Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31544/jtera.v10.i1.2025.105-112

Abstract

Sistem penentuan posisi dalam ruangan (Indoor Positioning System/IPS) memiliki peranan penting dalam berbagai aplikasi seperti navigasi robot, pelacakan aset, dan sistem layanan otomatis. Salah satu pendekatan IPS yang menjanjikan adalah berbasis kamera menggunakan algoritma YOLOv4 karena biayanya yang relatif rendah dan fleksibilitas penggunaannya, namun akurasinya masih tergolong rendah. Studi ini meningkatkan akurasi sistem IPS berbasis kamera melalui pendekatan anotasi visual baru, yaitu dengan menempatkan anotasi pada titik tengah antara dua kaki manusia sebagai acuan posisi objek di lantai. Dataset khusus berisi 2.000 citra digunakan untuk melatih model YOLOv4 yang telah disesuaikan. Hasil evaluasi menunjukkan peningkatan performa dengan nilai mean average precision (mAP) sebesar 99,19% setelah pelatihan sebanyak 6.000 iterasi. Rasio konversi pixel-ke-centimeter yang diperoleh mencapai 0,309 cm/pixel (sumbu-x) dan 0,308 cm/pixel (sumbu-y), dengan peningkatan akurasi sebesar 62,43% dan penurunan standar deviasi sebesar 69,01%. Temuan ini menunjukkan bahwa metode kalibrasi menggunakan anotasi pada kaki secara signifikan meningkatkan akurasi estimasi posisi dalam ruangan.
Mapping Active Lava Flows from the 2022 Mauna Loa Eruption Using NOAA-20 and S-NPP Satellite Data Ramayanti, Suci; Lee, Chang-Wook; Iryanti, Mimin; Indrasari, Widyaningrum; Hamidah, Ida; Hasanah, Lilik
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 14 No 1 (2025): 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.v14i1.26753

Abstract

The development of satellite data has played an important role in monitoring natural disasters on the Earth's surface. Providing an overview of the current conditions of a volcanic crisis, including information on lava flow extension, is a challenge in observing volcanoes. Various methods were used to map lava flows, such as identifying lava on optical satellite images and detecting thermal anomalies emitted by hot lava. This study aimed to generate a preliminary map of active lava flow caused by the 2022 Mauna Loa eruption in near real-time by analyzing fire radiative power (FRP) data acquired from Suomi National Polar-orbiting Partnership (S-NPP) and National Oceanic and Atmospheric Administration-20 (NOAA-20) satellites. FRP data was filtered to identify lava flow using statistically determined thresholds from its value distribution, including the 5th percentile, 3rd quartile, mean, and 95th percentile. The obtained active lava flow map is evaluated using confusion matrix analysis by comparing the estimated map with the reference map. The maps generated using various thresholds were compared, and the best result was provided by the threshold of the 3rd quartile, with S-NPP and NOAA-20 FRP threshold values of 27.2 and 27.9 MW/pixel, respectively, with overall accuracy reaching 97%. The higher threshold reduced the overestimated lava location represented by a false positive (FP) value. The results show that the active lava originated from the summit caldera, and the eruptive fissure on the northeast flank extended to the northeastern area with an estimated daily distance reaching about 18 km from a certain reference point. This preliminary lava flow map can provide general information regarding areas prone to lava flows, especially around Mauna Loa, and support related parties in updating hazard zones rapidly. The findings should help make immediate decisions for evacuation routes and public warnings when an eruption occurs without visiting the volcanic area directly.
Penguatan Kelompok Ternak Ikan Bandeng melalui Pemantau Kualitas Air Iryanti, Mimin; Aminudin, Ahmad; Hasanah, Lilik
ABDI MOESTOPO: Jurnal Pengabdian Pada Masyarakat Vol 8, No 2 (2025): Juli 2025
Publisher : Universitas Prof. Dr. Moestopo (Beragama)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32509/abdimoestopo.v8i2.4800

Abstract

Ikan bandeng merupakan salah satu komoditas perikanan payau yang bernilai ekonomi tinggi. Berkembangnya kabupaten dan kota di kawasan pantai dikhawatirkan akan berdampak pada penurunan produksi dan produktifitas bandeng. Di sisi lain kebutuhan ikan bandeng terus meningkat seiring dengan peningkatan jumlah penduduk dan makin tingginya kesadaran masyarakat untuk mengkonsumsi sumber protein yang menyehatkan dan berlemak rendah. Untuk itu dibutuhkanlah lingkungan yang membantu ikan bandeng untuk terus berproduksi dengan baik. Peran penting dalam pertumbuhan dan perkembangbiakan ini adalah kondisi air kolam atau tambak ikan. Karena itu diperlukan pengawasan kondisi air secara berkala dan kontinu. Kualitas ait tambak berupa suhu, pH, dan TDS (Total Dissolved Solid). Karena itu pada kegiatan Program Pengabdian kepada Masyarakat Berbasis Kepakaran Bidang Ilmu (PkM Bidang Ilmu)  ini dengan cara memfasilitasi peternak ikan memiliki alat ukur menggunakan sistem sensor untuk mengetahui kondisi kualitas air tambak di daerah pertambakan ikan bandeng di Bojong Salawe, Kab. Pangandaran Jawa Barat.
The utilization of the Taguchi method on microring resonator design parameters to enhance the value of the quality factor Aminudin, Ahmad; Hasanah, Lilik; Setyo Nugroho, Harbi; Wulandari, Chandra; Mulyanti, Budi; Eka Pawinanto, Roer; Rifqi Md Zain, Ahmad; Sugandi, Gandi; Hamidah, Ida; Indrasari, Widyaningrum; Yunas, Jumril
Bulletin of Electrical Engineering and Informatics Vol 14, No 5: October 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v14i5.9780

Abstract

This study uses the Taguchi method to optimize the quality factor (Q-factor) of microring resonators (MRRs) for sensor applications. The MRRs are compact optical components widely used in biosensors and environmental monitoring due to their sensitivity to refractive index changes. The Q-factor, a key performance metric for MRRs, is significantly influenced by structural parameters such as ring radius (R), gap (g), waveguide width (W), and waveguide height (h). We employed a finite difference time domain (FDTD) simulation to model light propagation within the MRR and compute the corresponding Q-factor to identify the optimal combination of these parameters. An L9 orthogonal array (OA) is used in the Taguchi method to analyze each factor's influence with three levels systematically. The optimization resulted in a Q-factor of 6208.44, significantly higher than the baseline value, indicating a substantial improvement. Compared to previous works, this research highlights the advantages of combining FDTD-based electromagnetic modeling with statistical optimization, offering a structured yet efficient approach to MRR design. The proposed method enhances Q-factor performance and provides scalability for practical applications in biomedical and environmental sensing. These findings underscore the utility of Taguchi-based design in advancing the field of photonic sensor optimization.
Profile of the Need for STEM Teaching Materials in Science Learning in Vocational Schools Susilawati, Aay; Rochintaniawati, Diana; Hasanah, Lilik; Kustiawan, Iwan; Rustaman, Nuryani; Kaniawati, Ida
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 5, No 2 (2023): July 2023
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29300/ijisedu.v5i2.3297

Abstract

Science education in vocational schools has undergone several changes in subject characteristics. Scienceteachers need to understand these characteristics to facilitate the delivery and implementation of learning inthe classroom. Therefore, the purpose of this article is to describe the requirements profile of needs forSTEM teaching materials in science learning at vocational schools. The research methods used aredescriptive and qualitative through field observations (field studies) derived from professional research inthe form of curriculum documents, lesson plans, learning videos, and analysis of six science textbooks invocational school. The results of a curriculum analysis from document, videos and textbooks on theavailability of project-based STEM components in learning equipment plans and existing materials are stillinadequate to support the life skills of 21st century professional students, and the following curriculumrequirements are: Not yet supported. So, in future research need integration, project-based, and underlyingskills according to competency skills in vocational school.
Project Based Learning with Stem Approach to Alternative Energy Material as Effective Learning to Improve Problem Solving Skills Roslina, Roslina; Liliawati, Winny; Hasanah, Lilik
Phenomenon : Jurnal Pendidikan MIPA Vol. 13 No. 2 (2023): Jurnal Pendidikan MIPA
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/phen.2023.13.2.16609

Abstract

This study aims to determine the effectiveness of STEM-PjBL learning in improving students' problem-solving abilities in alternative energy materials. This research was conducted in one of the high schools in the city of Bandung. Samples were obtained by rational sampling of 35 students in class X MIPA I (experimental class) and 35 students in class X MIPA II (control class). The method used is a quasi-experimental design with a non-equivalent control group design. Data collection technique is a description test in the form of pre-test and post-test. Based on data analysis it is known that the use of STEM-PjBL can improve students' problem solving skills (N-Gain = 0.65) in the experimental class compared to the control class (N)-Gain = 0.44). The t-test results with SPSS 22 with Sig. (2-value) less than 0.05 indicates that there is a significant difference in the increase in the problem solving ability of students in the experimental class and the control class. Based on these results, learning has a positive impact on students' problem solving abilities. STEM-PjBL learning can be used as an alternative teaching strategy at various school levels.
Integration of Project Based Learning with STEM Approach to Alternative Energy Material as Effective Learning to Improve Problem Solving Skills Roslina, Roslina; Liliawati, Winny; Hasanah, Lilik
Journal of Teaching and Learning Physics Vol. 9 No. 2 (2024): Journal of Teaching and Learning Physics (September 2024)
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jotalp.v9i2.26650

Abstract

This study aims to determine the effectiveness of STEM-PjBL learning in improving students' problem-solving abilities in alternative energy materials. This research was conducted in one of the high schools in the city of Bandung. Samples were obtained by rational sampling of 35 students in class X MIPA I (experimental class) and 35 students in class X MIPA II (control class). The method used is a quasi-experimental design with a non-equivalent control group design. Data collection technique is a description test in the form of pre-test and post-test. Based on data analysis it is known that the use of STEM-PjBL can improve students' problem solving skills (N-Gain = 0.65) in the experimental class compared to the control class (N)-Gain = 0.44). The t-test results with SPSS 22 with Sig. (2-value) less than 0.05 indicates that there is a significant difference in the increase in the problem solving ability of students in the experimental class and the control class. Based on these results, learning has a positive impact on students' problem solving abilities. STEM-PjBL learning can be used as an alternative teaching strategy at various school levels.
Integration of Digital Technologies in Physics Experiments: A Bibliometric Analysis Wahyudi, Ismu; Rusdiana, Dadi; Samsudin, Achmad; Hasanah, Lilik; Kapici, Hasan Ozgur
Jurnal Pendidikan MIPA Vol 25, No 2 (2024): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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

Abstract

Digital technology plays an important role in physics experiments by increasing the accuracy of data collection, enabling complex simulations and conducting real-time analysis, which accelerates scientific discovery, and improve test accuracy. The purpose of this study is to provide an overview of the conduct of research on the integration of digital technologies into physics experiments. This study conduct a bibliometric analysis of the integration of digital technology into physics experiments from January 2014 to May 2024. Based on the keywords, only articles selected by SCOPUS in English were included, and using the PRISMA guidelines we obtained 344 articles for analysis. In this studies, sample articles from SCOPUS in *RIS formats are processed using the VOSviewer to facilitate visualization and trend detection. Our analysis revealed seven prominent trends, included e-learning, digital twin, numerical model, high energy physics, application specific integrate, analog electronic circuit, and tracking detectors. The inspection results show that there was no significant development, research on the integration of digital technology into physics experiments has not been seriously conducted from the point of view of future teachers and teacher education, and only a few countries have investigated it. Therefore, based on the results of this bibliometric analysis, it provides an overview and opportunities for further research.         Keywords: bibliometric, digital technology, physics experiments, VOSviewer.DOI: http://dx.doi.org/10.23960/jpmipa/v25i2.pp659-670
Co-Authors Aa Juhanda Aay Susilawati Abi Sofyan Achmad Samsudin Adi Bagus Suryamas Ahmad Aminudin Ahmad Zulkarnain Zain Ainun Jariah Ajuni B. Pantjawati Almadaniy, Hanif Alta Ridho Anugrah Andhy Setiawan Andrivo Rusydi Apri Wiyono Arjuni B Pantjawati Asep Irvan Irvani Ayub Subandi Brian Yuliarto Budi Mulyanti Cecep Kusmana Chandra Wulandari Dadin Mahmudin Deni Irawan Deni K. Jamil Dewi Yulianawati Dewi Yulianawati Dian Purnama Dian Regita Cahyani Diana Maulidia Diana Rochintaniawati E. Suhendi Edy Junaidi Eis Nurzakiyah Eka Cahya Prima Eka Pawinanto, Roer Endi Suhendi Endi Suhendi Endi Suhendi Erwina Oktavianty Euis Sustini Farhan Farhan Fauzan, Jahril Nur Ghina Aghnia Nur Assyifaa Goib Wiranto Goib Wiranto Goib Wiranto, Goib Hera Novia Herni Yuniarti Suhendi Heru Yuwono Ida Hamidah Ida Hamidah Ida Kaniawati Indra Irawan Iqbal Syamsu Iqbal Syamsu Ismu Wahyudi Iwan Kustiawan Jumril Yunas Jumril Yunas, Jumril Kapıcı, Hasan Özgür Khairurrijal Khairurrijal Kusrini, Priyani Lee, Chang-Wook Leni Anggraeni Lina Aviyanti Luqmanul Hakim Maknun, Johar Maman Budiman Markus Diantoro Maulidia, Diana Mikrajuddin Abdullah Mimin Iryanti Muhammad Musyaddad Muhammad Zakaria Mulvia, Rahmadhani Mutiara Syifa Nada Sadidah Naftalia Trivenia Simbolon Nanang Winarno Nanang Winarno Nurjannah Nurjannah Nurul Ashri Nurul Huda Nuryani Rustaman P. Susthita Menon Pamungkas, Rahadian Sri Pangestu, M. Assadillah Parlindungan Sinaga Priyani Kusrini Putri Flamonia Rahadian Sri Pamungkas Rahmondia N. Setiadi Rama, Gusti Ramayanti, Suci Ramdhani Ramdhani Ramdhania, Lathifa Nur Rifqi Md Zain, Ahmad Roer Eka Pawinanto, Roer Eka Roslina Roslina, Roslina Safanah, Almas Sahari, Siti Kudnie Sahbudin Shaari Sahidin Sahidin Salsabilla Dwita Putri Satria Zulkarnaen Bisri Setiya Utari Setyo Nugroho, Harbi Siti Kudnie Sahari Siti Nurdianti Muhajir Sri Astuti Sudirman Sudirman Sugandi, Gandi Sukirno Sukirno Sukirno Sukirno Susilawati, Aay Syifa, Mutiara Tommi Hariyadi, Tommi Toto Winata Tri Lunggari D. C W Widia Wahyu Sasongko Putro Waslaluddin MT Widia Widia Widyaningrum Indrasari Winny Liliawati Wulandari, Chandra Yulianda, Hanny Yusi Riksa Yustiana, Yusi Riksa Yuski Maolid Rizki Faozan Yusuf Nur Wijayanto Yuyu Rachmat Tayubi