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All Journal Jurnal Abdi: Media Pengabdian Kepada Masyarakat Inovasi Fisika Indonesia (IFI) Journal of Dedication in Community (JoDiC)
Nugrahani Primary Putri
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Humanities Earth & Planetary Sciences Education Electrical & Electronics Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Social Sciences Other

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Introduction to Robotics Technology for High School Students in Nganjuk Regency through Line Follower Robot Training Firdaus, Rohim Aminullah; Meta Yantidewi; Endah Rahmawati; Dzulkiflih; Muhimmatul Khoiro; Nugrahani Primary Putri
Journal of Dedication in Community Vol. 2 No. 2 (2024)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences (FMIPA) Universitas Negeri Surabaya (UNESA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jodic.v2n2.p17-24

Abstract

In the era of rapid technological advancement, mastering robotics has become crucial for the younger generation. A community service program by the Physics Study Program lecturer team of Surabaya State University introduced robotics training to high school students at SMAN 1 Nganjuk. This program aimed to foster interest in science and technology, enhance critical thinking, and develop problem-solving skills. The training included systematic steps such as needs analysis, material preparation, implementation, and evaluation. Students learned to design, assemble, and test line follower robots, integrating theory and hands-on practice to understand robotics concepts and techniques comprehensively. The program's outputs include video documentation, news articles, training modules registered as Intellectual Property Rights (IPR), and scientific articles for national journals. Supported by the Nganjuk Regency Education Office, the program aims to enhance students' technological competencies and inspire greater achievements. It also serves as a model for similar initiatives in other regions, promoting technology education development in Indonesia. Evaluation based on participant questionnaires showed positive results: understanding of material (80%), material relevance (81%), usefulness (83%), instructor quality (87%), facilities (93%), and training time adequacy (83%). Overall, the program achieved very good results, successfully engaging students and meeting its objectives.
STUDI PERBANDINGAN BAJA-LAS TIPE G300 DAN G550 DENGAN MENGGUNAKAN OPTICAL EMISSION SPECTROSCOPY (OES) DAN IMPLIKASI TERHADAP SIFAT FISIS Ainur Rofiatus Sya'diyah; Evi Suaebah; Nugrahani Primary Putri; Fany Aditama
Inovasi Fisika Indonesia Vol. 15 No. 2 (2026): Vol 15 No 2
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v15n2.p199-205

Abstract

Abstrak Penelitian ini membandingkan komposisi kimia baja lapis aluminium seng (BjLAS) tipe G300 dan G550 menggunakan Optical Emission Spectroscopy (OES) serta menelaah kaitannya dengan perbedaan kuat tarik berdasarkan data uji tarik. Sebanyak delapan sampel, masing-masing empat untuk G300 dan empat untuk G550, dianalisis terhadap unsur karbon (C), mangan (Mn), fosfor (P), dan sulfur (S). Hasil pengukuran menunjukkan bahwa G300 memiliki rata-rata kadar C 0,0745% dan Mn 0,1562%, sedangkan G550 memiliki kadar C 0,0607% dan Mn 0,1340%. Untuk unsur pengotor, kadar P dan S pada kedua tipe masih berada di bawah batas standar yang dirujuk, dengan P sebesar 0,0213% dan 0,0158%, serta S sebesar 0,0113% dan 0,0163% untuk masing-masing G300 dan G550. Meskipun G300 memiliki kadar C dan Mn sedikit lebih tinggi, G550 menunjukkan kuat tarik rata-rata lebih besar, yaitu 694,25 MPa dibandingkan 404,25 MPa pada G300. Temuan ini menunjukkan bahwa perbedaan komposisi kimia saja belum cukup menjelaskan perbedaan sifat mekanik, karena riwayat termomekanik selama proses produksi diduga turut berperan. Metode OES terbukti efektif dan akurat dalam menganalisis komposisi unsur dengan ketelitian tinggi, yang menjadi dasar untuk kontrol kualitas dan pemilihan material dalam industri.   Abstract This study compares the chemical composition of aluminum-zinc coated steel (BjLAS/AZCS) types G300 and G550 using Optical Emission Spectroscopy (OES) and examines its relation to differences in tensile strength using supporting tensile data. Eight samples, consisting of four G300 and four G550 specimens, were analyzed for carbon (C), manganese (Mn), phosphorus (P), and sulfur (S). The results show that G300 has average C and Mn contents of 0.0745% and 0.1562%, respectively, while G550 has 0.0607% C and 0.1340% Mn. The P and S contents of both grades remain below the cited standard limits, with P contents of 0.0213% and 0.0158% and S contents of 0.0113% and 0.0163% for G300 and G550, respectively. Although G300 contains slightly higher C and Mn, G550 exhibits a much higher average tensile strength, 694.25 MPa compared with 404.25 MPa for G300. These findings indicate that chemical composition alone is insufficient to explain the mechanical-property difference; the thermomechanical history during production is likely influential. The OES method has demonstrated efficacy and precision in analyzing elemental composition, providing a foundation for quality control and material selection in industry.
Co-Authors Abdul Kholiq, Ainur Rofiatus Sya'diyah DZULKIFLIH Endah Rahmawati Evi Suaebah Fany Aditama Firdaus, Rohim Aminullah Ika Nurjanah IMA LUTFIANA Lela Agustina LINDA MEI RESTIANA Lydia Rohmawati Lydia Rohmawati Meta Yantidewi Muhimmatul Khoiro NURVITA WIDIYANTI RIA DWI IZHYANTI ROSYI AVIVA LYDIA DA VEGA TIARA SARAH DEWI Woro Setyarsih Woro Setyarsih