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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
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Adapting Statistical Thinking in Traditional Manufacturing Contexts Nugroho, Fajar
Journal of Sustainability Industrial Engineering and Management System Vol. 2 No. 2 (2024): January - June
Publisher : Omnia Tempus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56953/jsiems.v2i2.36

Abstract

This study explores the adaptation of statistical thinking in traditional manufacturing contexts, emphasizing its significance as a cognitive and cultural framework for improving quality, reducing process variation, and fostering data-informed decision-making. While statistical thinking has become a cornerstone in modern manufacturing systems, its integration into traditional environments—dominated by legacy processes, experiential judgment, and minimal technological infrastructure—remains limited. The purpose of this research is to analyze the current landscape of statistical awareness in such settings and to identify both enablers and barriers to its broader adoption. Employing a qualitative methodology based on an integrative literature review, this study synthesizes evidence from peer-reviewed articles, industry case studies, and theoretical frameworks published between 2000 and 2024. Thematic analysis reveals a persistent gap in statistical literacy among employees, cultural resistance among leaders, and technological limitations that impede implementation. However, emerging practices—such as contextualized training, policy interventions, and leadership-driven cultural change—offer promising pathways for sustainable integration. The findings contribute to both academic and managerial discourse by reframing statistical thinking as a holistic organizational capability rather than a technical function. This research advocates for a strategic and inclusive approach that combines education, infrastructure, and leadership to foster statistical maturity in resource-constrained manufacturing environments. In doing so, it supports long-term resilience, continuous improvement, and competitiveness in the face of global industrial transformation.
Digital Transformation and Innovation Capability Effects on Marketing Performance Nugroho, Fajar; Hermawati, Adya; Sopanah, Ana
International Journal of Multidisciplinary Sciences and Arts Vol. 5 No. 1 (2026): International Journal of Multidisciplinary Sciences and Arts, Article January 2
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/ijmdsa.v5i1.7813

Abstract

This study examines the influence of digital transformation, innovation capability, social media marketing, and market turbulence on marketing performance among creative economy players in Malang City. It also analyzes the mediating role of social media marketing in the relationship between digital transformation and innovation capability with marketing performance, as well as the moderating role of market turbulence in the relationship between social media marketing and marketing performance.The study adopts a quantitative approach with a cross-sectional design. The population consists of 4,951 creative economy business players in Malang City, with a sample of 196 respondents determined using the Slovin formula. Data were collected through questionnaires and analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM) with SmartPLS software, including descriptive analysis, validity and reliability testing, and hypothesis testing through bootstrapping.The results indicate that digital transformation has a significant positive effect on marketing performance, while innovation capability does not. Digital transformation and innovation capability significantly improve social media marketing, which in turn has a significant positive effect on marketing performance. Market turbulence has a significant negative effect on marketing performance and significantly moderates the relationship between social media marketing and marketing performance. Social media marketing significantly mediates the effects of digital transformation and innovation capability on marketing performance.
ANALISIS SENTIMEN ULASAN DI PLAYSTORE TERHADAP APLIKASI MARKETPLACE (SHOPEE, LAZADA, TOKOPEDIA) MENGGUNAKAN NAIVE BAYES DAN LOGISTIC REGRESSION Lukito, Aji; Nugroho, Fajar; Latifah, Noor
JURNAL UNITEK Vol. 18 No. 2 (2025): Juli-Desember 2025
Publisher : Sekolah Tinggi Teknologi Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52072/unitek.v18i2.1625

Abstract

Analisis sentimen ulasan di Playstore terhadap Aplikasi Marketplace (Shopee, Tokopedia, dan Lazada) Menggunakan Naive bayes dan Logistic regression bertujuan untuk mengklasifikasikan sentimen pengguna menjadi positif atau negatif berdasarkan ulasan terhadap tiga aplikasi Marketplace populer di Indonesia. Permasalahan utama dalam penelitian ini adalah bagaimana mengklasifikasikan sentimen ulasan pengguna terhadap aplikasi Marketplace Indonesia di Google Playstore secara akurat menggunakan algoritma Naive bayes dan Logistic regression, serta membandingkan performa kedua algoritma dalam melakukan klasifikasi tersebut. Data dikumpulkan dari ulasan Playstore, kemudian diproses melalui tahapan tokenization, case folding, stopword removal, dan stemming. Selanjutnya, dilakukan klasifikasi menggunakan kedua algoritma, lalu hasilnya dibandingkan. Evaluasi dilakukan dengan metrik Accuracy, Precission, Recall, dan F1-score untuk menilai efektivitas masing-masing algoritma terhadap data yang tidak seimbang. Hasil penelitian ini diharapkan dapat menunjukkan algoritma yang lebih optimal untuk analisis sentimen, serta mendukung pengembangan strategi layanan e-commerce berbasis data secara lebih akurat dan efisien.  
Students' Perceptions of History Teaching in Grade XI of Senior High School at SMAN 1 Parigi Tengah Rachmat, Fauzy; Suyuti; Haliadi; Nugroho, Fajar
Journal of Scientific Research, Education, and Technology (JSRET) Vol. 5 No. 1 (2026): Vol. 5 No. 1 2026
Publisher : Kirana Publisher (KNPub)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58526/jsret.v5i1.1001

Abstract

This study aims to determine students' perceptions of History teaching in grade XI of SMA Negeri 1 Parigi Tengah, specifically regarding the teaching methods used by teachers with a background in Geography. This study uses a descriptive qualitative approach conducted in a natural setting. The research subjects consisted of grade XI students, with supporting informants in the form of subject teachers and homeroom teachers. Data collection techniques were carried out through observation, semi-structured interviews, and documentation. Data were analyzed using an interactive analysis model that includes data reduction, data presentation, and drawing conclusions. The results of the study indicate that students' perceptions of History teachers' teaching methods vary. Some students considered the lecture method used to help understanding the material if delivered clearly, coherently, and communicatively. However, some other students felt that the method was less interesting if it was done monotonously and with minimal variation, thus decreasing interest and active learning. The use of learning media was also considered suboptimal, even though supporting facilities were available at the school. Factors that influence students' perceptions include the teacher's ability to deliver the material, the teacher's teaching style and attitude, the suitability of the method to the characteristics of the History material, students' interests and learning styles, and the learning environment. This study concludes that variations in methods and the use of learning media are very necessary to increase students' interest and understanding in learning History.
Analysis of History Teachers' Pedagogical Skills in Junior High School of MTs Al Khairaat Kalukubula Reskiani, Dita; Hasan; Windayanti; Nugroho, Fajar
Journal of Scientific Research, Education, and Technology (JSRET) Vol. 5 No. 1 (2026): Vol. 5 No. 1 2026
Publisher : Kirana Publisher (KNPub)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58526/jsret.v5i1.1010

Abstract

This study aims to describe the pedagogical knowledge and skills of history teachers at MTs Al-Khairaat Kalukubula and identify factors that support and hinder their implementation. Pedagogical competence is a teacher's ability to understand students, design and implement learning, provide learning outcomes, and develop students' potential to achieve optimal learning objectives. This study used a qualitative descriptive approach with data collection techniques including interviews, observation, and documentation. The research subjects included history teachers, the principal, and students at MTs Al-Khairaat Kalukubula. The results indicate that historical teachers understand student characteristics and systematically plan learning through tools such as syllabi, lesson plans, annual programs (Prota), and semester programs (Promes). Learning progressed quite well, despite challenges such as limited media, infrastructure, and limited teaching staff. Learning outcomes were evaluated through assignments, daily tests, mid-term exams, and remedial classes for students who have not yet met the Minimum Completion Criteria (KKM). In general, the pedagogical competence of history teachers at MTs Al-Khairaat Kalukubula has been quite good, demonstrated by their ability to manage educational, communicative, and reflective learning. However, improvements are needed in the areas of method variation, the use of digital learning media, and more optimal implementation time.
Peningkatan Pengetahuan Manfaat HKI bagi UMKM Produk Pertanian di Banguntapan Kabupaten Bantul Kusumawardani, Mawar; Subarjo, Abdul Haris; Setiabudi, Dedet Hermawan; Ahmadi, Nurfi; Nugroho, Fajar; Santoso, Prasidananto Nur; Santoso, Djarot Wahju
Mestaka: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 6 (2025): Desember 2025
Publisher : Pakis Journal Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58184/mestaka.v4i6.780

Abstract

Micro, Small, and Medium Enterprises (MSMEs) entrepreneurs still focus on trading and forget the potential side of intellectual property rights, this is due to ignorance, ego, or closed nature of business actors about new ideas and entrepreneurs feel quickly satisfied with their achievements. In product marketing communications, one of the functions of intellectual property rights is as a means for cultivating a positive image in the minds of consumers, so this needs to be understood by business actors, because the benefits of intellectual property rights for products are one of the important points so that MSME agricultural products are always remembered by the public or consumers who have tried the product for a period of time and have added value from the product. In this community service activity, a presentation was carried out, and to measure quantitatively the increase in knowledge, a pretest and posttest were conducted. The results of the increase in knowledge were an increase of 39% from the posttest results for community service participants.
PENINGKATAN LITERASI MEMBACA SISWA SEKOLAH DASAR MELALUI KEGIATAN PENDAMPINGAN PEMBELAJARAN BERBASIS BUKU CERITA BERGAMBAR DI DESA CENDANA MEKAR Lestari, Dwi; Albar, Muhammad Rafi; Maulida, Siti Nurhaliza; Nugroho, Fajar
Jurnal Pengabdian Masyarakat Ilmu Keguruan dan Pendidikan (JPM-IKP) Vol 7, No 1 (2024): Jurnal Pengabdian Masyarakat (JPM-IKP)
Publisher : FKIP Universitas Trilogi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31326/jpm-ikp.v7i1.2276

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan kemampuan literasi membaca siswa sekolah dasar melalui pendekatan pembelajaran berbasis buku cerita bergambar. Sasaran kegiatan adalah siswa kelas 3 dan 4 SDN Cendana Mekar, Kecamatan Cikedung, Kabupaten Indramayu. Metode pelaksanaan terdiri dari tiga tahap: (1) identifikasi kebutuhan dan kondisi literasi awal siswa, (2) pelatihan dan pendampingan guru serta siswa menggunakan media buku cerita bergambar, dan (3) evaluasi capaian literasi. Hasil kegiatan menunjukkan peningkatan minat baca dan pemahaman isi bacaan. Selain itu, guru merasa terbantu dengan pendekatan yang menyenangkan dan kontekstual. Kegiatan ini memberikan kontribusi nyata dalam upaya peningkatan kualitas literasi dasar di daerah rural. 
Structural Design Optimization of Bellcrank 3 in the N219 Aircraft Flap Flight Control System Using the Finite Element Method Hartini, Dwi; Bachtiar, Muhamad Irfan; Nugroho, Fajar; Anna Prattiwi, Elisabeth Anna; Santoso, Djarot Wahju
Vortex Vol 7, No 1 (2026)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v7i1.3819

Abstract

The flap control system is a critical subsystem in aircraft that directly affects aerodynamic performance and flight safety. One of the key mechanical components in this system is the bellcrank, which functions to transmit and redirect loads from the actuator to the flap mechanism. In this study, structural optimization of bellcrank 3 in the flap control system of the N219 aircraft was performed using the Finite Element Method (FEM). Three design configurations were analyzed, namely the base model, optimization model 1 with thickness reduction, and optimization model 2 with the addition of holes in non-critical areas. Structural evaluation was conducted based on mass reduction, displacement, von Mises stress, and margin of safety (MS). The simulation results show that both optimization approaches successfully reduce structural mass compared to the base model. Optimization model 1 achieves the largest mass reduction but results in higher stress levels and lower margin of safety. Optimization model 2 provides a more balanced structural performance, with stress, displacement, and margin of safety values comparable to the base model while maintaining mass reduction. All analyzed configurations exhibit positive margin of safety values, indicating that the structures remain safe under the applied operational loads. Based on the overall structural performance, optimization model 2 is considered the most suitable design for application in the flap control system of the N219 aircraft.
Distribusi dan Karakteristik Mikroplastik di Perairan Waduk Sermo, Kulon Progo Nugroho, Fajar; Muchlis; Sulistyaningsih, Eka; Ellyawan Setyo Arbintarso
Environmental Insight Journal Vol. 2 No. 1 (2026): January
Publisher : Postgraduate Faculty, Yogyakarta Institut of Technology, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37412/eij.v2i1.435

Abstract

Mikroplastik merupakan polutan baru yang menjadi perhatian global karena keberadaannya yang persisten dan berpotensi menimbulkan dampak terhadap lingkungan perairan serta kesehatan manusia. Waduk Sermo di Kabupaten Kulon Progo merupakan perairan tawar yang dimanfaatkan sebagai sumber air baku, irigasi, perikanan, dan pariwisata, sehingga berpotensi terpapar pencemaran mikroplastik akibat aktivitas antropogenik di sekitarnya. Penelitian ini bertujuan untuk mengidentifikasi keberadaan, kelimpahan, karakteristik bentuk, ukuran, serta jenis polimer mikroplastik pada perairan Waduk Sermo. Pengambilan sampel air dilakukan pada tiga titik, yaitu inlet sungai, tengah waduk, dan inlet PDAM. Analisis mikroplastik dilakukan melalui pengamatan morfologi menggunakan mikroskop serta identifikasi jenis polimer menggunakan Fourier Transform Infrared Spectroscopy (FTIR). Hasil penelitian menunjukkan bahwa mikroplastik ditemukan pada seluruh titik pengamatan dengan kelimpahan tertinggi pada area inlet sungai. Mikroplastik berbentuk pellet merupakan bentuk yang paling dominan, diikuti oleh fiber, fragment, film, dan foam. Hasil analisis FTIR mengindikasikan bahwa mikroplastik yang ditemukan didominasi oleh polimer polyamide (nylon), yang diduga berasal dari aktivitas perikanan dan limbah domestik. Parameter kualitas air (suhu, pH, dan dissolved oxygen) berada dalam kisaran baku mutu kelas I sesuai PP No. 22 Tahun 2021, namun tidak menunjukkan hubungan yang signifikan dengan kelimpahan mikroplastik. Hasil penelitian ini memberikan informasi ilmiah mengenai kondisi pencemaran mikroplastik di Waduk Sermo dan dapat menjadi dasar dalam pengelolaan serta pengendalian pencemaran mikroplastik pada perairan tawar.
Studi Pengaruh Kecepatan Putaran Rotating Tool Friction Stir Welding (FSW) Terhadap Kekuatan, Kekerasan Dan Struktur Mikro Aluminium AA 2024-T3 Nugroho, Fajar; Ahmadi , Nurfi; Yulianto, Eko
AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Vol. 9 No. 1 (2023)
Publisher : Universitas Ibn Khaldun Bogor

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

Abstract

Dalam pengelasan FSW kecepatan putaran rotating tools merupakan salah satu faktor penting yang menentukan kualitas sambungan las. Dalam penelitian ini digunakan material aluminium AA 2024-T3 dengan kecepatan putar rotating tools sebesar 900 rpm, 1500 rpm dan 2280 rpm, serta kedalaman pin sebesar 3,5 mm dan kecepatan feed rate 18 mm/menit. Selanjutnya terhadap hasil sambungan las FSW dilakukan pengujian kekuatan tarik, pengujian kekerasan dan struktur mikro. Berdasarkan dari hasil pengujian sifat mekanik tersebut dapat dilihat bahwa kecepatan putaran rotating tools mempengaruhi nilai kekuatan tarik, nilai kekerasan dan struktur mikro dari sambungan las. Semakin tinggi putaran menyebabkan meningkatnya kekuatan tarik dan kekerasan. Namun peningkatan tersebut tidak berjalan kontinyu karena pada putaran yg tinggi perlu dilakukan penyesuaian terhadap feed rate pengumpanannya. Dalam penelitian ini hasil optimal diperoleh pada putaran rotating tools 1500 rpm dimana kekuatan tarik sebesar 236,93 MPa dan nilai kekerasannya sebesar 137,3 VHN. Dari pengamatan struktur mikro menunjukan adanya perubahan butiran pada area nugget zone akibat pengaruh putaran rotating tools. Kata kunci : aluminium 2024-T3; FSW; kekerasan; kekuatan tarik; struktur mikro.
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