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Jimstek
Published by Universitas Sahid Surakarta
ISSN : 30906385     EISSN : 30906385     DOI : https://doi.org/10.47942/jimstek.v8i01.2119
Core Subject : Health, Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Veterinary
JIMSTEK : Scientific Journal of Science and Technology is a peer-reviewed journal that can be accessed by the public, published by the Faculty of Science, Technology and Health (FSTK) Sahid University Surakarta. This journal is published twice a year, every February and October with the online version E-ISSN: 3090-6385. JIMSTEK provides a forum for researchers, academics, professionals, practitioners and students to impart and share knowledge in the form of empirical and theoretical research papers, case studies, literature reviews and book reviews related to science and technology research in the fields of Mathematics and Science ( MIPA), Health, Engineering and Health. JIMSTEK welcomes and acknowledges high-quality theoretical and empirical research papers, case studies, review papers, literature reviews, book reviews, conceptual frameworks, analysis and simulation models, research-related technical notes from researchers, academics, professionals, practitioners, and students.
Arjuna Subject : Umum - Umum
Articles 73 Documents
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PENENTUAN JUMLAH SERVER UNTUK MENGURAI ANTRIAN STUDI KASUS BANK XYZ Ardianto Risqi Barata; Bekti Nugrahadi; Yunita Primasanti
JIMSTEK: Jurnal Ilmiah Sains dan Teknologi Vol. 8 No. 01 (2026): JIMSTEK: Jurnal Ilmiah Sains dan Teknologi
Publisher : Fakultas Sains, Teknologi dan Kesehatan Universitas Sahid Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47942/jimstek.v8i01.2117

Abstract

Penelitian ini dilakukan untuk mengoptimalkan jumlah server (Teller dan Customer Service) dalam mengatasi masalah antrian panjang di Bank XYZ yang berdampak pada ketidaknyamanan nasabah dan tidak efisien dari sisi operasional. Menggunakan pendekatan teori antrian model M/M/s dan simulasi berbantuan software WinQSB, penelitian menganalisis data operasional selama tiga bulan (April-Juni 2025) yang mencakup tingkat kedatangan nasabah (arrival rate), waktu pelayanan (service rate), dan utilisasi server Hasil analisis menunjukkan pola utilisasi yang fluktuatif: pada April, Customer Service mencapai utilisasi optimal 77,33% sementara Teller hanya 19,85% (underutilized); Mei menunjukkan kondisi sebaliknya dengan Teller 82% (optimal) tetapi Customer Service turun drastis ke 36,62%; sedangkan di Juni kedua server mengalami overload dengan utilisasi melebihi 93%. Berdasarkan simulasi, direkomendasikan penyesuaian dinamis jumlah server: April (3 CS dan 1 Teller), Mei (2 CS dan 3 Teller), serta Juni (6 CS dan 5 Teller). Implikasi penelitian merekomendasikan penerapan sistem manajemen server yang adaptif berbasis data real-time, didukung strategi penjadwalan dinamis dan multi-role server. Pendekatan ini tidak hanya meningkatkan efisiensi operasional tetapi juga mampu meningkatkan customer experience melalui pengurangan waktu tunggu yang signifikan.
Analisis Pengendalian Kualitas Produk Bata Ringan Dengan Pendekatan Metode Six Sigma Dan FMEA-AHP di PT Nusantara Building Industries (PT.NBI) Habib Syahrun Ramadhan Habib; Yunita Primasanti; Agung Widiyanto Fajar Sutrisno; Anita Oktaviana Trisna Devi
JIMSTEK: Jurnal Ilmiah Sains dan Teknologi Vol. 8 No. 01 (2026): JIMSTEK: Jurnal Ilmiah Sains dan Teknologi
Publisher : Fakultas Sains, Teknologi dan Kesehatan Universitas Sahid Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47942/jimstek.v8i01.2119

Abstract

Pengendalian kualitas merupakan aspek penting dalam menjaga konsistensi mutu produk, khususnya pada industri bata ringan. Penelitian ini bertujuan untuk mengukur kinerja proses dan mengidentifikasi faktor risiko penyebab cacat. Metode yang digunakan yaitu Six Sigma dengan tahapan DMAIC (Define, Measure, Analyze, Improve, and Control), dikombinasikan dengan FMEA (Failure Mode and Effect Analysis) dan AHP (Analytical Hierarchy Process). Hasil penelitian menunjukkan bahwa rata-rata nilai tingkat sigma proses produksi bata ringan periode Januari – Desember 2024 sebesar 3,905, yang artinya bahwa proses produksi bata ringan di PT NBI sudah memenuhi atau melebihi standar rata-rata kualitas di Indonesia. Jenis reject dominan dari hasil analisis diagram pareto yaitu pecah, gompal, dan dimensi dengan total persentase reject kumulatif sebesar 91,74%. Berdasarkan perhitungan FMEA-AHP, diperoleh faktor prioritas penyebab cacat yaitu pada jenis reject pecah dan gompal antara lain proses cutting pada penetrasi rendah atau green cake keras dengan nilai RPN sebesar 6,96, proses oiling kurang merata dengan nilai RPN 6,78, adanya gap atau terjadi hentakan antara meja tilting dengan green cake dengan nilai RPN 6,7. Sedangkan pada jenis reject dimensi antara lain operator kurang teliti dengan nilai RPN sebesar 7,11, operator kurang pengecekan dengan nilai RPN 6,56, pengembangan cake pendek dengan nilai RPN 6,37.
A PERANCANGAN ALAT BANTU (JIG) DIGITAL CALIPER UNTUK MENGUKUR KEDALAMAN YANG LEBIH AKURAT DI CV. HAHAN ACINTYA Pujosakti Herdhianto
JIMSTEK: Jurnal Ilmiah Sains dan Teknologi Vol. 8 No. 01 (2026): JIMSTEK: Jurnal Ilmiah Sains dan Teknologi
Publisher : Fakultas Sains, Teknologi dan Kesehatan Universitas Sahid Surakarta

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

Abstract

The potential for measurement errors in workpieces can increase product defects or rejects, which can impact business profits at CV. Hahan Acintya. Therefore, a more accurate digital caliper measuring tool was designed to reduce the number of product defects using the DFSS (Design for Six Sigma) method. This study used the DFSS method with the DMADV procedure, which includes the stages of Define, Measuring, Analyze, Design, and Verify. In the Define stage, Critical to Quality (CTQ) is identified and defect types are classified using a pareto diagram. The Measure stage calculates the DPU, DPO, and DPMO values ​​to determine the initial sigma level. In the Analyze stage, the most common defects are analyzed from the pareto diagram and then problem-solving is developed using a fishbone diagram, which is dominated by worker measurement errors. The Design stage produces a jig design using Solidworks software that can minimize product defects caused by measurement errors. The Verify stage tests the jig implementation in the field and re-measures the defect level and sigma values. The results of the study showed that before and after the implementation of the jig caliper, the sigma level value decreased from 4.39 to 4.65, and the percentage of out-of-tolerance defects decreased from 1.82% to 0%. This proves that the designed jig effectively reduces measurement variation and improves product quality. The conclusion from this design is that the jig caliper addresses the problem of production defects at CV. Hahan Acintya regarding out-of-tolerance defects. This tool assists production workers in measuring the depth of workpieces. In general, there are significant results related to the problem of defects caused by out-of-tolerance.

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