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All Journal Jurnal Gizi dan Pangan Jurnal Penelitian dan Evaluasi Pendidikan INOTEKS : Jurnal Inovasi Ilmu Pengetahuan, Teknologi, dan Seni Journal of Business and Management Jurnal Perikanan dan Kelautan Edulib Conference SENATIK STT Adisutjipto Yogyakarta Angkasa: Jurnal Ilmiah Bidang Teknologi Ensiklopedia of Journal Ensiklopedia Education Review Jurnal Pengabdian Masyarakat Ilmu Keguruan dan Pendidikan (JPM-IKP) Jurnal Riset Sistem Informasi dan Teknologi Informasi (JURSISTEKNI) Jurnal Teknik Informatika (JUTIF) Jurnal UNITEK Journal of Community Practice and Social Welfare (JaCiPS) Vortex Jurnal Peradaban Masyarakat (JPM) Journal of Scientific Research, Education, and Technology International Journal of Multidisciplinary Sciences and Arts Mestaka: Jurnal Pengabdian Kepada Masyarakat Jurnal Teknologi dan Vokasi AME (Aplikasi Mekanika dan Energi) : Jurnal Ilmiah Teknik Mesin Journal of Health Management, Administration and Public Health Policies Hikamatzu Journal of Multidisciplinary Research Jurnal Perikanan dan Kelautan Environmental Insight Journal Journal of Sustainability Industrial Engineering and Management System

FAJAR NUGROHO

Jurusan Teknik Mesin STT Adisutjipto

Author-ID : 333260

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Other

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Problems Implementing the Independent Curriculum in History Learning at SMA Negeri 1 Sarudu Ratna; Nugroho, Fajar; Iskandar; Rore, Idrus
Journal of Scientific Research, Education, and Technology (JSRET) Vol. 4 No. 3 (2025): Vol. 4 No. 3 2025
Publisher : Kirana Publisher (KNPub)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58526/jsret.v4i3.874

Challenges in Implementing the Merdeka Curriculum in History Learning at SMA Negeri 1 Sarudu. Skripsi. Bachelor’s degree. History Education Study Program, Social Science Education Department, Teacher Training, and Education Faculty, Tadulako University. Under the supervision of Fajar Nugroho. This research aims to describe the implementation process, identify the challenges encountered, and examine the solutions applied in applying the Merdeka Curriculum in history learning at SMA Negeri 1 Sarudu. This research used a descriptive qualitative approach with data collection techniques through observation, interviews, and documentation. Data analysis was conducted using the Miles and Huberman model, which includes stages of data reduction, data presentation, and conclusion. The research results show that implementing the Merdeka Curriculum at SMA Negeri 1 Sarudu encompasses three stages: planning, implementation, and evaluation, centred on students' needs and characteristics. In the process, various problems were found, including student objections to P5 projects, teachers' difficulties in implementing differentiated learning, facility limitations, teachers' lack of initial understanding, and constraints in assessment time management. The solutions implemented by the school and teachers include socialising the benefits of P5, student mentoring, learning style mapping, teacher training, facility optimisation, and more structured assessment scheduling. This research concludes that implementing the Merdeka Curriculum at SMA Negeri 1 Sarudu still faces challenges, but these can be overcome through collaboration between the school and teachers so that history learning runs more effectively and in line with the principles of independent learning.

Strengthening the Pancasila Student Profile through Local Diversity Activities at SMP Negeri 12 Palu Mentemas, Abelia; Nugroho, Fajar; Iskandar; Suyuti
Journal of Scientific Research, Education, and Technology (JSRET) Vol. 4 No. 3 (2025): Vol. 4 No. 3 2025
Publisher : Kirana Publisher (KNPub)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58526/jsret.v4i3.875

Strengthening the Pancasila Student Profile through Local Diversity Activities at SMP Negeri 12 Palu. Study Program of History Education, Department of Social Science Education, Faculty of Teacher Training and Education, Tadulako University. Supervisor: Fajar Nugroho. This study aims to: (1) Describe the process of strengthening the Pancasila Student Profile through local diversity activities at SMP Negeri 12 Palu; (2) Explain the impact of strengthening the Pancasila Student Profile on students through local diversity activities; and (3) Identify challenges and obstacles in implementing the strengthening of the Pancasila Student Profile through local diversity activities. This research employed a descriptive qualitative method with data collection techniques including: (1) observation; (2) interviews; and (3) documentation. The findings show that local diversity activities conducted in the form of Cultural Exhibitions, traditional dances, and other cultural projects actively instill Pancasila values such as mutual cooperation, local diversity, and critical reasoning. However, obstacles remain, such as limited teacher understanding of the P5 module and low student participation. The study concludes that local diversity activities are able to strengthen student character dimensions in line with the Pancasila Student Profile if supported by the consistent and sustainable involvement of the entire school community.

Development of WebGIS for Street Light Mapping Using Geospatial Tools Anisya, Anisya; Fajrin, Fajrin; warman, Indra; Minarni, Minarni; Syahrani, Anna; Nugroho, Fajar
Jurnal Teknik Informatika (Jutif) Vol. 6 No. 4 (2025): JUTIF Volume 6, Number 4, Agustus 2025
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2025.6.4.4777

Padang City, as one of the cities the largest on the west coast of Sumatra Island, plays a strategic role in the economy and government. One of the vital infrastructures that supports public activities is the street lighting system. However, the monitoring and maintenance of streetlights still face obstacles, especially in North Padang District, which is the busiest area due to the presence of numerous educational facilities, government offices, and economic centers. This research aims to develop a WebGIS application that facilitates the monitoring and management of street lighting more efficiently. Our research contributes by introducing a new approach to spatial-based streetlight management strategies. This approach is based on a methodology for field data collection and spatial database development to manage all stages of streetlight infrastructure management. This application integrates geospatial technology by utilizing GeoServer, QGIS, and PostgreSQL for visualization and spatial data management. With this system, information about the location and condition of streetlights can be accessed in real-time, thereby facilitating better planning and maintenance of street lighting infrastructure. The result of this study is a WebGIS application capable of mapping and monitoring streetlight points interactively. The implementation of this system is expected to assist relevant authorities in improving the effectiveness of street lighting management in Padang City and contribute to the development of geospatial technology-based solutions for urban infrastructure.

Peran stop-drilling dalam menurunkan konsentrasi tegangan crack-tip material aluminium 2024-T3 Prattiwi, Elisabeth Anna; Wibowo, Irfan; Nugroho, Fajar; Hartini, Dwi; Santoso, Djarot Wahju
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 16, No 2 (2024): November
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/angkasa.v16i2.2597

Dalam penelitian ini membahas pengaruh metode stop-drilling terhadap konsentrasi tegangan pada crack tip struktur pesawat terbang menggunakan material aluminium 2024-T3 pada skin aileron Cessna-150 dengan mengasumsikan dengan bentuk spesimen bersegi panjang. Metode stop-drilling adalah teknik perbaikan yang digunakan untuk mengurangi perambatan crack pada struktur pesawat. Analisis yang digunakan pada penelitian ini menggunakan analisis numerik yaitu Finite Element Analysis (FEA) dilakukan untuk menentukan hasil Von-Mises stress pada spesimen untuk mengetahui konsentrasi tegangan pada crack tip. Hasil penenlitian ini menunjukkan bahwa diameter lubang 3,454 mm menghasilkan konsentrasi tegangan terendah dengan nilai 18,1, sedangkan diameter lubang 3,048 mm menghasilkan konsentrasi tegangan tertinggi dengan nilai 19,0. Hasil penelitian menunjukan bahwa panjang crack 50,8 mm menghasilkan konsentrasi tegangan tertinggi dengan nilai 18,5. Dari hasil menunjukan penempatan stop-drilling tipe C memiliki konsentrasi tegangan tertinggi dengan nilai 20,6. Sedangkan penempatan stop drilling tipe A memiliki konsentrasi tegangan terendah dengan nilai 10,5

PENGARUH KOMPOSISI SKIN TERHADAP KEKUATAN BENDING PADA KOMPOSIT SANDWICH SERAT AREN-POLYESTER DENGAN SERBUK KAYU SENGON-POLYESTER Nugroho, Fajar; Ahmadi, Nurfi
Vortex Vol 4, No 1 (2023)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v4i1.1425

Komposit sandwich adalah jenis komposit yang mempunyai kekuatan tinggi apabila digunakan sebagai struktur primer maupun sekunder. Komposit juga memiliki kelebihan dari sifat mekaniknya, tahan korosi, massa jenis yang kecil dan proses pembuatannya yang sederhana. Penelitian ini bertujuan untuk menyelidiki pengaruh variasi fraksi volume lapisan kulit serat aren dengan inti limbah gergaji kayu sengon laut terhadap kekuatan bending komposit sandwich bermatriks polyester. Bahan penelitian ini adalah serat aren, unsaturated polyester resin 157 BQTN-EX, serbuk limbah gergaji kayu sengon laut dan urea formaldehide. Spesimen ini dibuat dengan metode cetak tekan dengan tebal skin (2 mm) dan tebal core (10 mm). Pengujian bending komposit sandwich ini mengacu pada standar ASTM D-790-03. Metode yang digunakan dalam proses pembuatan komposit ini adalah metode hand lay up.Hasil penelitian menunjukkan nilai kekuatan bending mengalami kenaikan dari variasi fraksi volume 20% : 80% ke variasi fraksi volume 40% : 60%, dengan nilai tegangan lentur maksimum tertinggi 54,87 N/mm2 pada variasi fraksi volume 40% : 60%. Berdasarkan hal ini dapat diketahui bahwa seiring penambahan serat maka turut mempengaruhi nilai tegangan yang dihasilkan. Hasil pengujian morfologi pada variasi 30% : 70% ditemukan adanya void atau pori-pori di sekitar permukaan spesimen.

Analysis of the influence of groove welds of oxy-acetylene welding joints on tensile strength and microstructure on steel ST 37 Nugroho, Fajar; Muga, Yohanes Fernando Leo; Setiabudi, Dedet Hermawan; Sudarmanto, Sudarmanto
Vortex Vol 5, No 1 (2024)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v5i1.1955

In this study, the authors conducted a study on the analysis of the effect of oxy-acetylene welding joints on tensile strength and microstructure in the HAZ and weld metal areas on st 37 steel plates. The results of this study indicate that the average value of the highest tensile strength value is at V groove weld with the average strength of the welded joint is 4.796 kgf/mm2. While the lowest tensile stress is on the I groove weld of 4.674 kgf/mm2. Meanwhile, from the microstructure test, it can be seen that in the HAZ area each groove. Microstructure in the HAZ area shows that the double V groove weld types are fine ferrite, coarse pearlite and martensite. In type V groove weld the structures formed are ferrite, coarse pearlite and martensite. In type I groove weld the structures formed are ferrite, grain boundary ferrite and fine pearlite. Whereas in the weld metal area, and the results of the microstructure test of the weld area on the V seam, it shows a dense microstructure arrangement, the arrangement is identical to pearlite (dark color) so that the specimen is harder.

PENGARUH KECEPATAN FEEDRATE FRICTION STIR WELDING (FSW) TERHADAP SIFAT MEKANIK DAN STRUKTUR MIKRO PADA ALUMINIUM PADUAN AA 2024-T3 Nugroho, Fajar; Ahmadi, Nurfi; Hidayat, Sarif
Vortex Vol 3, No 2 (2022)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Friction stir welding (FSW) adalah suatu teknologi pengelasan yang merupakan proses solid-state joining yang bisa digunakan untuk menyambungkan material aluminium dengan mampu las yang rendah. Proses FSW memanfaatkan putaran dari tool yang menggesek dua buah lempengan logam yang akan disambung. Aluminium 2024 T3 dengan ketebalan 4 mm disambung menggunakan proses FSW dengan variasi feedrate yang digunakan 13 mm/menit, 15 mm/menit, dan 25 mm/menit, kecepatan putaran spindle 910 rpm dan kedalaman pin 3 mm. Pengujian yang dilakukan adalah pengujian tarik, kekerasan dan uji struktur mikro pada masing-masing variasi pengelasan.Hasil penelitian menunjukkan bahwa kekuatan tarik dan regangan tarik tertinggi terjadi pada pengelasan dengan feedrate 25 mm/menit sebesar 221,51 MPa dan 3,60. Kemudian kekuatan tarik dan regangan tarik terendah terjadi pada pengelasan dengan feedrate 13 mm/menit sebesar 198,63 MPa dan 2,26. Nilai kekerasan tertinggi di area nugget zone dihasilkan pada pengelasan dengan feedrate 25 mm/menit yaitu sebesar 137 VHN dan nilai kekerasan terendah dihasilkan pada pengelasan dengan feedrate 13 mm/menit yaitu sebesar 105 VHN. Hasil foto struktur mikro pada area nugget zone dan TMAZ (Thermomecanically Affected Zone) mengalami perubahan seiring dengan berubahnya feedrate.

PENGARUH POSISI SHIELDED METAL ARC WELDING (SMAW) GERAK SPIRAL KAMPUH V TERHADAP KEKUATAN TARIK DAN STRUKTUR MIKRO BAJA KARBON RENDAH Ahmadi, Nurfi; Nugroho, Fajar; Ahmad A, Dadang
Vortex Vol 4, No 1 (2023)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v4i1.1320

The purpose of this study was to determine the relationship between the position of shielded metal arc welding (SMAW) with spiral motion V on the tensile strength and microstructure of low carbon steel. The research was conducted by welding V-coated low carbon steel with horizontal 2G, vertical 3G and overhead 4G. The test results show that the welding position does not have a significant effect on the tensile strength of low carbon steel welds, where the 3G vertical position provides a higher tensile strength value than the 2G horizontal position and 4G overhead. The microstructure of acicular ferrite (AF) in the vertical position looks dominant uniformly and tightly.

REKAYASA MESIN PENGKABUT AIR (HUMIDIFIER CONTROL) UNTUK PENINGKATAN PRODUKSI BIBIT KLENGKENG PINGPONG Widata, Sri; Gunarso, Gunarso; Nugroho, Fajar; Herahli, Among
INOTEKS: Jurnal Inovasi Ilmu Pengetahuan,Teknologi, dan Seni Vol 15, No 1 (2011)
Publisher : Universitas Negeri Yogyakarta

This research is aimed to disclose fogging machine application effectiveness for improving klengkeng pingpong seed production. The effectiveness of fogging machine may be measured based on the degree of the fogging machine usage success in klengkeng pingpong nursery process, whose degree of achievement shall be higher than nursery process conducted in natural manner. The research result shows that the average degree of achievement in klengkeng pingpong nursery in way of seedling, top grafting, bridging or marcot, by using fogging machine is 79.26%. Meanwhile klengkeng pingpong nursery process in natural manner is approximately 40%. In return to this, it indicates that fogging machine usage on klengkeng pingpong nursery is deemed effective as it has exceeded successful level of natural klengkeng pingpong nursery. Thus, it may eventually be applied in improving klengkeng pingpong seed production

Effects of COVID-19 Pandemic on Changes in Nutritional Status and Physical Activities of School-Age Children: A Scoping Review Nugroho, Fajar; Ruchaina, Annisa Nafilata; Wicaksono, Angga Galih Luhur
Jurnal Gizi dan Pangan Vol. 17 No. 3 (2022)
Publisher : The Food and Nutrition Society of Indonesia in collaboration with the Department of Community Nutrition, IPB University

This study's objective is to review the consequence of the COVID-19 epidemic on physical activities, sedentary lifestyles, screen time, and changes in the nutritional status of school-age children. The outcomes of this study are intended to be applicable to obesity management in children. This study reviewed full-text articles and open-access publications on the sedentary lifestyle of children during the pandemic. and the data were analyzed using cohort, case-control, and cross-sectional designs. The results of reviewing 17 articles show that school-age children’s physical activities and nutritional status have decreased, but their sedentary lifestyle and screen time have increased due to social restrictions during the COVID-19 pandemic. Children’s decreased physical activities are caused by the absence of a comparable replacement mechanism as that before the pandemic. Meanwhile, the increasingly sedentary lifestyle highly influences children’s physical and mental health. Screen time has also increased and is unavoidable during the pandemic because children’s activities were limited and their learning systems are switched to online learning; as a result, their supporting sedentary lifestyle increases while physical activities decrease. These factors have changed the nutritional status of children during the pandemic. These results support the idea that the pandemic will impact the health of school-age children, especially their nutritional status. This review concludes that it is important to establish policies that prevent children’s further health effects, such as obesity, caused by COVID-19.

Co-Authors abdul haris subarjo, abdul haris Adya Hermawati Agamuddin, Agri Americo Ahmad A, Dadang Ahmadi , Nurfi Albar, Muhammad Rafi Among Herahli Ana Sopanah, Ana Andrano, Reza Anisya Anisya Anna Prattiwi, Elisabeth Anna Anzani, Luthfi Arman A Arman A, Arman A Bachtiar, Muhamad Irfan Dedet Hermawan Setiabudi, Dedet Hermawan Djarot Wahju Santoso Dwi Hartini Dwi Lestari EKO YULIANTO Eli Kumolosari Ellyawan Setyo Arbintarso Fadhil Azman, Hanif Fajrin, Fajrin Fakhrizal Fakhrizal, Fakhrizal Freddy Kurniawan GUNARSO GUNARSO Haliadi Hamdeni Medriosa Hasan Hasidu, La Ode Abdul Fajar Indra Warman Irfansyah, Rahmat Irman Hermadi ISKANDAR Isror, Maizul Kartika Sari, Mega Kurniawan, Muh. Firdaus Agung Kunto Kusumawardani, Mawar Laia, Dominikus Yoeli Wilson Lukito, Aji Mahardhika, R. Hernan Maizetri, Resti Maizir Maizir Maulida, Siti Nurhaliza Mentemas, Abelia Minarni Minarni Minsaris, La Ode Alam Misbah Misbah MUCHLIS Muga, Yohanes Fernando Leo Mulyati Mulyati Mutawakkil Noor Latifah Nurcahyani Dewi Retnowati Nurfi Ahmadi, Nurfi Octavia, Dyla Midya Okto Dinaryanto Pinandhita, Lazuardy Rahendra Prattiwi, Elisabeth Anna Pudji Muljono Rachmat, Fauzy Rahardjo, Cakra Rahayu, Mina Ismu Ratna Reskiani, Dita Rinaldi, Donni Rore, Idrus Ruchaina, Annisa Nafilata Santoso, Prasidananto Nur Sarif Hidayat, Sarif Shivani, Nifla Juniar Sri Widata Sudarmanto Sudarmanto, Sudarmanto Sulistyaningsih, Eka Suyuti Suyuti Suyuti Sylviana Maya Damayanti Tadoda, Mersy Marselyna Teguh Wibowo Triwibowo, Nur Ahmad Wibowo, Irfan Wicaksono, Angga Galih Luhur Wilujeung, Alya Dina Windayanti

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