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All Journal Jurnal Teknologi International Journal for Educational and Vocational Studies Jurnal Teknik Mesin Journal of Welding Technology Journal of Applied Sciences and Advanced Technology Jurnal Mekanik Terapan Jurnal Hurriah: Jurnal Evaluasi Pendidikan dan Penelitian Malikussaleh Journal of Mechanical Science Technology Jurnal Teknologi Kimia Unimal Electronic Journal of Education, Social Economics and Technology International Journal of Trends in Mathematics Education Research (IJTMER) Jurnal Malikussaleh Mengabdi Jurnal Polimesin
Muhammad Nuzan Rizki
Program Studi Teknik Mesin, Fakultas Teknik Universitas Malikussaleh, Jl. Cot Tengku Nie, Reuleut,Muara Batu, Aceh Utara, Aceh
Religion Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Public Health Social Sciences Veterinary Other

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Peningkatan Literasi Matematika melalui Media Ular Tangga Matematika di SD Negeri 10 Syamtalira Bayu Faisal, Faisal; Kamar, Iqbal; Rizki, Muhammad Nuzan; Fibarzi, Wiza Ulfa; Ulfa, Raudhatul; Bahri, Syamsul; Yani, Firda Tirta
Jurnal Malikussaleh Mengabdi Vol. 4 No. 1 (2025): Jurnal Malikussaleh Mengabdi, April 2025
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jmm.v4i1.22839

Abstract

Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan kemampuan literasi matematika siswa SD melalui pendekatan permainan edukatif “Ular Tangga Matematika” dan juga salah satu program kampus mengajar dalam meningkatkan asistensis sekolah dasar di daerah-daerah terutama literasi dan numerasi. Permainan ini dirancang untuk membantu siswa memahami konsep dasar matematika seperti operasi hitung, satuan ukuran, dan geometri dalam bentuk yang menyenangkan. Sasaran kegiatan adalah siswa kelas V SD Negeri 10 Syamtalira Bayu. Metode pelaksanaan meliputi tahap perencanaan, implementasi media ular tangga matematika, dan evaluasi. Hasil kegiatan menunjukkan bahwa media ini mampu meningkatkan minat dan pemahaman siswa terhadap pelajaran matematika. Literasi matematika siswa meningkat signifikan, ditandai dengan peningkatan hasil tes dan keterlibatan aktif dalam proses pembelajaran
Analysis of the Mechanical Properties of SMAW Welded Joints on ST 37 Plate Material after PWHT as a Case Study in Welding Engineering Education Qulfaj, Asadda; A, Aljufri; Rizki, Muhammad Nuzan; Islami, Nurul; Isra, Muhammad
JURNAL HURRIAH: Jurnal Evaluasi Pendidikan dan Penelitian Vol. 6 No. 2 (2025): Jurnal Hurriah: Journal of Educational Evaluation and Research
Publisher : Yayasan Pendidikan dan Kemanusiaan Hurriah Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56806/jh.v6i2.260

Abstract

One of the techniques in improving the mechanical properties of a welding result is the Post Weld Heat Treatment (PWHT) process. Attempts to improve these properties are the main goal of users so that the construction they build can last a long time from the influence of natural phenomena. This research aims to analyze the mechanical properties of SMAW welded joints on ST37 plate material that undergoes the PWHT process, as well as contribute as a practicum teaching material or case study in learning welding techniques in the technical education environment. In this study, welding was carried out with E7016 electrodes, and then three variations of the PWHT process were carried out, namely at temperatures of 400, 500, and 600°C with a holding time of 30, 60, and 90 minutes, respectively. The joints were tested using a penetrant test and a hardness test. The results showed that PWHT at 600°C with a holding time of 90 minutes produced the highest average hardness value compared to 400°C and 500°C with 30 and 60 minutes. This finding reinforces the understanding that temperature and holding time in the PWHT process significantly affect the hardness value of the weld. Therefore, the results of this study are not only useful in the development of manufacturing technology but also utilized as an applicable learning medium. By knowing the effect of PWHT on the mechanical properties of welded joints, welding instructors can design a more effective practicum in teaching the principles of welding.
Optimization of Tensile Strength in Pineapple Leaf Fiber Composites: A Study of Fiber Volume Fractions with Clear Polyester Resin Zahra, Fatimah; Safriwardy, Ferri; Habibi, Muhammad; Zulmiardi, Zulmiardi; Rizki, Muhammad Nuzan
Electronic Journal of Education, Social Economics and Technology Vol 6, No 2 (2025)
Publisher : SAINTIS Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33122/ejeset.v6i2.1086

Abstract

The utilization of pineapple leaf fiber is still relatively small, only used as a basic material for various types of furniture products, fabrics for fashion products, crafts and composites as forming materials. This study aims to analyze the tensile strength of pineapple leaf fiber composites with variations in volume fractions using clear polyester resin. In this study, composites were made using three different volume fractions, namely 60% fiber: 40% resin, 70% fiber: 30% resin, and 85% fiber: 15% resin. After the test specimen manufacturing process, the specimens were then tested for tensile strength on each volume fraction. The results of this study indicate variations in tensile strength on each volume fraction used, where using a volume fraction of 85% fiber: 15% resin produces higher tensile strength compared to the volume fraction of 60% fiber: 40% resin and 70% fiber: 30% resin. Pineapple leaf fiber reinforced composites with variations in the volume fraction of pineapple leaf fiber 60%: resin 40%, pineapple leaf fiber 70%: resin 30%, and pineapple leaf fiber 85%: resin 15%. From the percentage variations, the highest tensile strength is in pineapple leaf fiber 85%: resin 15% with an average value of 105.69 MPa, elastic modulus strength of 1571 MPa, and elongation of 6.74%. While the lowest tensile strength value is in pineapple leaf fiber 60%: resin 40%, with an average value of 74.30 MPa, elastic modulus strength of 1231 MPa, and elongation of 6.04%, it can be concluded that the higher the percentage of fiber, the higher the tensile strength value. Variations in the volume fraction of pineapple leaf fiber can affect the mechanical properties of clear polyester resin composites. The composite strength value often increases with the increase in the fiber volume fraction. However, a high fiber volume fraction does not always have a good effect on the strength of the composite. The strength of the composite is not only influenced by the number of fibers but is also influenced by the binding factor, namely the matrix.
Identifying key parameters affecting the mechanical properties of 3D-printed ABS materials Rizki, Muhammad Nuzan; Putra, Reza; Durmuş, Alpaslan; Isra, Muhammad
Jurnal Polimesin Vol 23, No 5 (2025): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i5.7664

Abstract

Advances in additive manufacturing (AM) technology have opened up opportunities for the rapid and precise production of complex components, including those used in unmanned aerial vehicle (UAV) structures. However, ABS material prints often exhibit variations in quality due to the influence of various interacting process parameters. This study aims to analyze the influence of four parameters: infill pattern, layer thickness, print speed, and chamber temperature on two important mechanical properties: ultimate tensile strength (UTS) and elongation. The Taguchi method with an experimental design using an orthogonal array L9(3⁴) was applied to minimize the number of trials without sacrificing important information. The tensile test data were analyzed using the signal-to-noise ratio (S/N ratio) and Analysis of Variance (ANOVA). The results showed that the infill pattern was the most dominant parameter, contributing 80.78% to UTS and 73.16% to elongation. Chamber temperature has a significant effect on elongation (19.78%), as it enhances interlayer bonding through temperature control in the printing chamber. Layer thickness contributes moderately to UTS (10.01%), while print speed has the smallest effect on both responses. These findings emphasize the importance of selecting the appropriate combination of parameters to consistently improve ABS print quality and serve as a foundation for developing process standards based on experimental data.
Co-Authors A, Aljufri Abdul Rahman Adi Setiawan Ahmad Fikri Ahmad Nayan Akmal, Khafid Khaulsar Akmal, Syarifah Alchalil Alchalil Aljufri Aljufri Amalia Harmin Asnawi Daniel, Muhammad Dedi Afandi Durmuş, Alpaslan Fadhilla, Cut Alna Faisal Faisal Faisal Faisal Faisal, F Fathan Mubina Dewadi Fauzan Ferri Safriwardy Fibarzi, Wiza Ulfa Gunawan, Chichi Rizka Hadi, Dodi Alfarasi Hery Widijanto Indra Mawardi Isra, Muhammad Kamar, Iqbal Karyadi Karyadi Karyadi Marini Bravikawati Masrullita, M Masrullita, Masrullita Maulidan, Rahmat Maysyarah, Tjut Rizqi Muhammad Habibi Muhammad Isra Muhammad Muhammad Muhammad Sayuthi Muhammad Zulfri Mutia, Sri Nanda, Rizki Aulia Nurlaila, Rizka Nurul Islami, Nurul Pranata, Tri Agung Putra, Reza Qulfaj, Asadda Ramadhan, Muhammad Faiz Rambe, Farhan Wafi Rangkuti, Mhd. Saleh Riskan, Ardi Rizki Aulia Nanda Rizki Aulia Nanda Rizqullah, Akbar Simbolon, Muhammad Iqbal Sofyan Sofyan Suhara, Ade Syamsul Bahri Tukino, Tukino Ulfa, Raudhatul Yani, Firda Tirta Yasir Amani Yusuf, Edy Z Zulfahmi Zulmiardi Zulmiardi, Zulmiardi