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All Journal Mechatronics, Electrical Power, and Vehicular Technology TEKMAPRO Journal of Industrial Engineering and Management REKAYASA Jurnal Informatika dan Teknik Elektro Terapan JURNAL NASIONAL TEKNIK ELEKTRO JPM (Jurnal Pemberdayaan Masyarakat) Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Dinamisia: Jurnal Pengabdian Kepada Masyarakat COMPTON: Jurnal Ilmiah Pendidikan Fisika AL-ULUM: JURNAL SAINS DAN TEKNOLOGI Kasuari: Physics Education Journal (KPEJ) TRIDARMA: Pengabdian Kepada Masyarakat (PkM) SOLUSI Jurnal E-Komtek Budapest International Research in Exact Sciences (BirEx Journal) Nusantara Science and Technology Proceedings Unri Conference Series: Community Engagement Didaktika: Jurnal Kependidikan Juminten : Jurnal Manajemen Industri dan Teknologi Journal La Multiapp Bulletin of Community Engagement JoTELL: Journal of Teaching English, Linguistics, and Literature Aptekmas : Jurnal Pengabdian Kepada Masyarakat ELOQUENCE: Journal of Foreign Language JURNAL TEKNIK INDUSTRI Al Basirah Journal of Islamic Studies and Education Teaching English and Language Learning English Journal Jurnal Kendali Teknik dan Sains ABDI UNISAP: Jurnal Pengabdian Kepada Masyarakat Journal of Language Education and Development (JLed) VISA: Journal of Vision and Ideas Journal Serambi Engineering (JSE) Jurnal Sains Materi Indonesia Akiratech Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Jurnal Riset Multidisiplin Edukasi IPSSJ ETERNAL: English Teaching Journal Journal Electrical and Computer Experiences Ar-Rasyid: Jurnal Publikasi Penelitian Ilmiah
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PENERAPAN SISTEM PERAWATAN MESIN NIAGARA FILTER MENGGUNAKAN METODE PREVENTIVE MAINTENANCE DENGAN KLASIFIKASI ISMO DI PT XYZ Pranata, Krisnayana; Joumil Aidil Saifudin
Tekmapro Vol. 19 No. 2 (2024): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v19i2.418

Abstract

PT XYZ merupakan suatu perusahaan agribisnis yang berfokus pada pengolahan crude palm oil (CPO) yang berlokasi di Indonesia. Pada praktiknya perusahaan masih belum menerapkan strategi preventive maintenance untuk perawatan mesin produksinya dan hanya mengandalkan corrective maintenance sebagai strategi dalam tindakan perawatan mesin. Berdasarkan data historis perusahaan yang ada pada bulan januari 2023-desember 2023 tercatat ada 96 kali tindakan perawatan yang dilakukan pada mesin niagara filter dan mesin tersebut memiliki nilai availabity terendah dibandingkan mesin yang lain sebesar 73,33%. Oleh karena itu peneliti berusaha melakukan evaluasi sistem perawatan mesin dengan menerapkan preventive maintenance berdasarkan klasifikasi ISMO. Preventive maintenance dengan klasifikasi ISMO mampu menentukan siklus perawatan dan estimasi biaya perawatan suatu mesin berdasarkan nilai repair complexity mesin yang akan diklasifikasikan dalam masing-masing kegiatan inspection, small repair, medium repair, and overhaul. Hasil penelitian menyatakan 1 siklus perawatan mesin niagara filter selama 3 tahun dengan rincian Inspection 9 kali, Small Repair 6 kali, dan Medium Repair 2 kali dan nilai availability mesin meningkat menjadi 88%. Sehingga, diperoleh total estimasi biaya perawatan mesin niagara filter dengan klasifikasi ISMO adalah sebesar Rp93.110.152,98.
ANALISIS PENERAPAN LEAN MANUFACTURING DENGAN METODE VSM (VALUE STREAM MAPPING) GUNA MENGURANGI WASTE DAN CYCLE TIME PADA PROSES PRODUKSI KERAMIK DI PT XYZ Siagian, Wiranty Tiara Wijaya; Joumil Aidil Saifudin
Tekmapro Vol. 19 No. 2 (2024): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v19i2.419

Abstract

PT XYZ merupakan salah satu perusahaan manufaktur yang bergerak dalam bidang usaha industri keramik. Dalam pelaksanaan produksinya, masih ditemukan beberapa waste. Untuk mengurangi waste yang teridentifikasi dalam proses produksinya, digunakan penerapan Lean Manufacturing dengan metode VSM (Value Stream Mapping) untuk menganalisa dan merancang aliran material dan informasi sehingga dapat melakukan identifikasi, analisa dan mencari solusi untuk melakukan usulan perbaikan untuk mengurangi waste yang terjadi. Pada pelaksanaannya, dimulai dengan identifikasi waste yang dominan terjadi menggunakan kuesioner borda, selanjutnya dicocokkan dengan data perusahaan apakah waste tersebut benar terjadi atau tidak. Hasil identifikasi 3 waste dominan yang terjadi pada PT XYZ yaitu Overproduction, Defect dan Inventory. Usulan perbaikan yang diberikan untuk mengurangi waste yaitu, overproduction dengan peramalan yang mendapat hasil ramalan ke-13 sebesar 249,186.3 dengan nilai MAPE yang lebih kecil dari forecast perusahaan yaitu 0,75%, sehingga dapat digunakan untuk mengurangi waste overproduction sekaligus waste inventory dengan menambahkan perhitungan Safety Stock yaitu sebesar 9,162.54 unit dan defect dengan usulan perbaikan Root Cause Analysis dengan tools fishbone diagram untuk 3 defect dominan dan Kaizen 5W1H untuk merumuskan perbaikan yang tepat.
The Correlation among AI-Assisted English Learning, Technology Acceptance, and Willingness to Use English among English Education Alumni Graduates from UIN Raden Mas Said Surakarta Adam Ghivari; Sujito
Jurnal Riset Multidisiplin Edukasi Vol. 2 No. 12 (2025): Jurnal Riset Multidisiplin Edukasi (Edisi Desember 2025)
Publisher : PT. Hasba Edukasi Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71282/jurmie.v2i12.1337

Abstract

This quantitative correlational study was conducted to find out the relationship between AI-Assisted English Learning, Tech Acceptance, and Willingness to Use English in the AI Learning, with the target population being the graduates of the English Language Education program at UIN Raden Mas Said Surakarta. There were 30 respondents taken for this quantitative correlation analysis, with the respondents completing an online questionnaire designed in relation to the AI usage scale, Tech Acceptance Model, and Willingness to Communicate. The data revealed that both predictors were found to be at high levels, denoting the involvement of the graduates in learning English and their positive attitude towards technology. AI-supported learning in English was revealed to be positively significant with Willingness to Use English (ρ =.386, p =.035), indicating that regular use of AI technologies boosts alumni confidence and drive when speaking English. In contrast, Willingness to Use English did not significantly correlate with Technology Acceptance (ρ =.155, p =.414). Nonetheless, the combination of the two variables explained 23.2% of the variance (R² =.232) and significantly contributed to the variation in Willingness to Use English (F = 4.085, p =.028). This result implied that the integration of AI with English language learning could enhance the quality of graduates’ communication preparedness, especially when they possessed an optimistic attitude towards technology. Future studies involving more factors, such as affective elements, should be conducted to further explore English language usage behavior post-graduation.
Optimasi Titik Daya Maksimum Global dan Distorsi Harmonik Arus pada Sistem PV-Inverter menggunakan Algoritma Migrasi Lebah (QHBM) Muhammad Cahyo Bagaskoro; Aripriharta; sujito; Saodah Omar
JURNAL NASIONAL TEKNIK ELEKTRO Vol 14, No 3: November 2025
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jnte.v14n3.1331.2025

Abstract

This paper investigates the optimization of the Global Maximum Power Point (GMPP) and the simulation of Total Harmonic Distortion of Current (THDI) from an inverter connected to a nonlinear load. THDI variations are analyzed with respect to ambient temperature (T) and solar irradiance (G). The study also highlights how harmonic components negatively affect steady-state voltage stability in photovoltaic (PV) systems. The Queen Honey Bee Migration (QHBM) algorithm is applied to optimize GMPP while minimizing THDI. An off-grid PV-inverter system is modeled in MATLAB/Simulink. The model extracts THDI as a function of temperature and irradiance. Simulations cover irradiance from 794.8 to 994.2 W/m² and temperature from 20.0°C to 32.3°C, based on daily measurements from 08:25 to 16:50. The QHBM algorithm tracks GMPP effectively under fluctuating irradiance. Results show a 17.3% improvement in power extraction efficiency and a 32.8% reduction in THDI compared to conventional methods. The highest THDI occurs during low irradiance, particularly in the early morning and late afternoon. The algorithm converges in 0.18 seconds, outperforming other techniques. THDI increases during rapid irradiance and temperature changes. The proposed method ensures stable performance and lower THDI. Combining QHBM with active harmonic filters under low irradiance conditions is recommended to improve power quality and enhance system protection.
CORRELATION OF CANVA AI WITH WRITING SKILL AND VOCABULARY MASTERY OF DESCRIPTIVE TEXT FOR DEAF STUDENTS CLASS VII AT SLB HAMONG PUTRO JOMBOR SUKOHARJO Sujito; Vinna Mei Astuti
Ar-Rasyid: Jurnal Publikasi Penelitian Ilmiah Vol. 1 No. 6 (2025): Ar-Rasyid: Jurnal Publikasi Penelitian Ilmiah (Bulan Desember 2025)
Publisher : PT. Saha Kreasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64788/ar-rasyid.v1i6.217

Abstract

This research was conducted to analyze multivariate correlational relationship among using canva ai (artificial intelligence) features, writing descriptive text skill, and vocabulary mastery of class vii deaf students in slb hamong putro jombor sukoharjo. This study adopted a quantitative correlational research design, and the sample consisted of four students, using a intensive case study approach. The data was gathered through observation on canva ai utilization, descriptive text writing skill tesr, and vocabulary mastery test. Data were processed by employing multiple correlation and partial correlation. Hypothetical results predict a significant positive relationship between the collective use of Canva AI and students writing skills and vocabulary mastery (R = 0.85; p < 0.05). In part, using canva ai correlated strongly to writing skills (r = 0.78) and moderately to vocabulary mastery (r = 0.62). The research findings imply that visual and text-based interactive features of Canva AI which address learning requirements for deaf students, can be considered as promising new learning media to develop their literacy and languag e competence particularly in the sphere of descriptive text.
Peningkatan Kemampuan Membaca dan Memahami Teks pada Siswa SMP Melalui Strategi Pertanyaan dan Jawaban (QAR) : Meningkatkan Reading Comprehension di Sekolah Menengah Pertama Melalui Strategi QAR Fikri Fathoni, Afrizal; Budiasih; Sujito; Arifin, Zainal
ELOQUENCE : Journal of Foreign Language Vol. 4 No. 3 (2025): DECEMBER
Publisher : Language Development Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58194/eloquence.v4i3.3011

Abstract

Background: Reading comprehension represents a crucial aspect of learning English effectively, yet many junior high school students struggle to interpret and engage meaningfully with texts. Purpose: This study examines the impact of the Question Answer Relationships (QAR) strategy on enhancing students’ performance in reading comprehension. Method: This study employed a quantitative one-group pretest–posttest design involving 30 students from an Islamic Public Junior High School (JHS) in Karanganyar, selected through simple random sampling. Pre- and post-tests based on descriptive texts aligned with the national English curriculum were administered, and the data were analyzed using descriptive statistics and a paired-sample t-test to assess changes in students’ reading comprehension. Results and Discussion: The analysis showed that employing the QAR strategy resulted in a notable enhancement of students’ reading comprehension abilities. The average score improved from 22.67 on the pre-test to 32.53 on the post-test. Statistical results from the paired-sample t-test verified a significant improvement (t = –26.191, p < .001), indicating the effectiveness of the intervention. These results suggest that QAR supports students’ understanding of text by helping them differentiate between information derived directly from the text and knowledge constructed from prior understanding, thereby strengthening metacognitive engagement and filling the gap in strategies for fostering comprehension at the junior high level. Conclusions and Implications: The implementation of the QAR strategy provides a learning experience that guides students to think critically, understand the relationship between questions and the text, and gradually enhance their reading comprehension skills. QAR can serve as an innovative instructional approach for English teachers to foster students’ deeper understanding of reading comprehension.
Membentuk Kepuasan Pelanggan: Peran Reliabilitas Dan Interaksi Personal Melalui Citra Toko Jayanti Jiwa Prasetyaningtyas; Sujito
Solusi Vol. 24 No. 1 (2026): January
Publisher : Fakultas Ekonomi, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/slsi.v24i1.13376

Abstract

Penelitian ini melihat bagaimana pengaruh dua dimensi kualitas layanan—reliabilitas dan interaksi personal—terhadap kepuasan pelanggan, dengan melihat peran citra toko sebagai variabel pemoderasi. Studi dilakukan dengan menyebarkan kuesioner kepada 100 pelanggan Alfamart di Kota Semarang yang dipilih secara purposif. Data kemudian dianalisis menggunakan Structural Equation Modeling (SEM) melalui perangkat lunak SmartPLS 4. Hasil dari penelitian menunjukkan bahwa reliabilitas tidak memberikan pengaruh yang signifikan terhadap tingkat kepuasan pelanggan. Di sisi lain, interaksi personal terbukti memiliki dampak positif dan signifikan dalam meningkatkan kepuasan. Analisis lebih lanjut mengungkap peran kompleks citra toko sebagai moderator. Pada hubungan antara reliabilitas dan kepuasan, citra toko berfungsi sebagai homologiser moderator, yang mengindikasikan bahwa citra toko tidak berinteraksi dengan reliabilitas dan juga tidak memiliki hubungan langsung dengan kepuasan pelanggan. Sementara itu, dalam konteks hubungan interaksi personal dan kepuasan, citra toko bertindak sebagai pure moderator dengan koefisien negatif. Artinya, citra toko justru melemahkan pengaruh positif yang dimiliki interaksi personal terhadap kepuasan pelanggan. Implikasi dari penelitian ini menyoroti pentingnya bagi manajemen ritel untuk lebih memprioritaskan peningkatan kualitas interaksi personal, seperti melalui pelatihan staf yang berkelanjutan. Selain itu, perlu dilakukan evaluasi mendalam terhadap strategi pembentukan citra toko, memastikan bahwa citra yang dibangun tidak hanya kuat, tetapi juga sinergis dan mendukung pengalaman layanan langsung, bukan malah mengurangi efektivitasnya.
Fluistik Zone: Interactive Digital Media for Learning Static Fluid Concepts in Senior High School Physics Diraya, Inayatun; Riska, Fati Matur; Sujito
Kasuari: Physics Education Journal (KPEJ) Vol. 8 No. 2 (2025): December 2025
Publisher : Universitas Papua, Jurusan Pendidikan Fisika FKIP Unipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37891/kpej.v8i2.939

Abstract

This study aims to develop an interactive digital learning media called Fluistik Zone on static fluid material using the 4D development model (Define, Design, Develop, Disseminate). This media covers the subtopic of introductory static fluids, consisting of density, hydrostatic pressure, Pascal's law, and Archimedes' law. The development procedure begins with a needs analysis through teacher interviews and literature reviews, followed by the initial design of Android application-based media equipped with features such as learning videos, interactive quizzes, and Online Active Learning Guide (OALG). Validation was carried out by material experts and media experts with average validity results of 94% and 99% respectively in the very valid category. The practicality assessment by teachers reached 94% in the very well category and student responses showed an average of 85% in the well category. These findings indicate that Fluistik Zone is valid, practical, and interesting for students in supporting physics learning interactively and contextually. This media is designed following the principles of multimedia learning to increase student engagement and understanding. Therefore, Fluistik Zone has the potential as an effective, interesting, and relevant physics learning media innovation to support 21st century learning. However, testing the effectiveness of the media on learning outcomes has not been carried out experimentally and the trial is still limited to one school. Further research is recommended to test the effect of using Fluistik Zone on student learning outcomes through a quasi-experimental design and expand the development to other physics topics and different levels of education.
THE INFLUENCE OF PEER INTERACTION AND PRACTICE FREQUENCY ON ENGLISH VOCABULARY MASTERY AT MTS MIFTAHUL ULUM KEBUN WANGI Moh Rofiki; Sujito
Integrative Perspectives of Social and Science Journal Vol. 2 No. 07 Desember (2025): Integrative Perspectives of Social and Science Journal
Publisher : PT Wahana Global Education

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

Abstract

This research investigates the impact of peer interaction and practice frequency on the English vocabulary mastery of eighth-grade students at MTs Miftahul Ulum Kebun Wangi. Employing a quantitative correlational approach, the study involved 48 participants selected through simple random sampling. Data were collected using two instruments: a Likert-scale questionnaire measuring peer interaction and practice frequency, and a 30-item vocabulary test assessing students’ lexical knowledge. The results of the descriptive analysis indicated mean scores of 3.40 (SD = 0.61) for peer interaction, 3.15 (SD = 0.68) for practice frequency, and 72.7% (SD = 11.9) for vocabulary mastery. Correlation analysis revealed a significant positive relationship between peer interaction and vocabulary mastery (r = 0.52, p < 0.001), as well as between practice frequency and vocabulary mastery (r = 0.60, p < 0.001). Furthermore, multiple regression analysis showed that both independent variables jointly accounted for 46% of the variance in vocabulary mastery (R² = 0.46, F(2,45) = 19.1, p < 0.001), with standardized beta coefficients of 0.34 for peer interaction and 0.41 for practice frequency. The findings highlight that collaborative peer engagement and consistent practice significantly enhance students’ vocabulary acquisition. It is therefore recommended that English teachers integrate peer-based and practice-oriented strategies to strengthen students’ lexical development.
Analisis Penyebab Downtime Pada Mesin Produksi Pupuk NPK Granul Compaction Menggunakan Metode Root Cause Analysis di PT XYZ Hidayatullah, Fajar Rizky; Joumil Aidil SZS
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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

Abstract

The fertilizer industry plays a strategic role in supporting agricultural productivity and national food security. However, production effectiveness is often constrained by machine downtime, which negatively affects operational performance. This study aims to analyze the main causes of machine downtime in the NPK granular compaction production process at PT XYZ and to propose appropriate improvement strategies. The research method employs downtime analysis using a Pareto diagram to identify the machine contributing the highest downtime, followed by root cause analysis using a Fishbone (Ishikawa) diagram and the 5W+1H method. The Pareto analysis results indicate that the Compact machine was the largest contributor to downtime during the October 2025 period, with a total duration of 395.23 hours. Fishbone analysis reveals that downtime is influenced by multiple interrelated factors, including machine, method, manpower, material, measurement, and working environment. Furthermore, the 5W+1H analysis shows that failures of key components such as the roller press, crusher chain, bearings, screen, and Teflon were caused by high workload, inadequate maintenance practices, non-compliance with standard operating procedures, substandard spare part quality, incomplete downtime records, and unfavorable working conditions. Based on the findings, strengthening the implementation of preventive maintenance is recommended as the primary strategy to reduce downtime, improve machine productivity, and enhance the overall efficiency of the NPK granular compaction production process.
Co-Authors A.N. Afandi Abdullah Iskandar Syah Abdullah Iskandar Syah Abyan Thariq Fadhilah Adam Ghivari Ahmad Bayu Laksono Al Afrin Uwais, Tito Aldha Asmaradanta Andini Fajarwati Andita Rizki Ramadani Anik Nur Handayani anugra, rizky Arif Hidayat Aripriharta - Aryudho Widyatno Ashshiddiqi, Dimas Jundan Aulia Zulfa Indi Putri Aya Sofia Mufti Azhar Ahmad Smaragdina Azhar Muhammad Nurdin Azhar Muhammad Nurdin Bima Adhi Prasetya Wahyudi Bima Adhi Prasetya Wahyudi Budi Wibowotomo Budiasih Denny Yatmadi Dina Fitria, Dina Dira Ernawati Diraya, Inayatun Dita Rochmawati Divya Aisha Diyah Ayu Wulandari Dyah Lestari DYAH NURWIDYANINGRUM E. Hidayah Erlina Fitri Aji Evie Dwi Jayanti Fahreza, M. Dimas Aviv Fakhruddin, Dhiyaurrahman Falah, Moh. Zainul Farah Wardatul Afifah Fatma, Nurul Fikri Fathoni, Afrizal Firman Syarif, Rangga Fitriyyatul Muslihah Fitrotul Bahri Affandi Fuad Indra Kusuma Hakkun Elmunsyah Haqiqi, Ahmad Faiz Risvan Hari Putranto Hari Wisodo, Hari Hari, Nirwana Haidar Harits Ar Rosyid Haryoto, Dwi Hasan Ismail Heru Wahyu Herwanto Hestiningtyas Yuli Pratiwi Hidayatullah, Fajar Rizky Imam Ghozali Irfan Fikri Akmalia Irgi Aditya Irham Fadlika Irma Rizky Aprillia Isna Nugraha Ivan Jeremias Tjioewinata Ivanda, Shabrina Tsalsabela Jamilah, Umi Januari Adi Prasetya Jayanti Jiwa Prasetyaningtyas Jonathan Saputra Krisnawan, Shandy Langlang Gumilar M. Cahyo Bagaskoro M. Rodhi Faiz, M. Rodhi Mahfud Jiono Marcelani, Rigel Saesaria Moh Rofiki Moh. Amri Pradaka Moh. Zainul Falah Mokh Sholihul Hadi Muhammad Abd. Hadi Bin Bunyamin Muhammad Aqshal Muhammad Cahyo Bagaskoro muhammad cahyo bagaskoro Muhammad Khoirul Hudha Muhammad Sandi Kurniawan Muhammad Tahfidlul Azmi Muis Muhtadi Muladi N. Hidayatillah Naizatul Zainul Rofiqi Nanang Winarno Nanda Firlana Nike Illiyine Pangestuti Nur Hidayat, Wahyu Parno Pradaka, Moh. Amri Pranata, Krisnayana Puji Hariati Winingsih Raditya Chavvah Hesa Putra Raditya Chavvah Hesa Putra Raffi Taufik Gushardana Ramadhan, Moch. Rizal Ridho Riski Hadi Rindi Santika Agustin Riska, Fati Matur Riyanto, Didik Rusindiyanto Ryan Setyo Putro Robawa Sakti Gunawan Irianto, Wahyu Saodah Omar Saputri, Avida Pramayshela Satriani, Cahya Tifandi Shita Dwi Annisya Shita Dwi Annisya Siagian, Wiranty Tiara Wijaya Siti Sendari Sucipto Sulistiyanto Sunarti Syaad Patmanthara Syaifuddin Zuhri Tran Huy Duy Tranggono Tranggono Tri Wulan Sari Usman, Nurlatifah Utomo Pujianto Utomo, Imam Tree Vinna Mei Astuti Vivi Indah Lestari Wahyu Sakti Gunawan Irianto Wahyu Tri Handoko Yekti Condro Winursito Yekti Condro Winursito Yuni Rahmawati Zainal Arifin Zainul Falah, Moh Zidan, Rahmat