Article Per Year (5 Year)
p-Index From 2021 - 2026
3.063
P-Index
This Author published in this journals
All Journal Jurnal technoscientia Jurnal Rekavasi Prosiding Semnastek Jurnal Teknik Industri Terintegrasi (JUTIN) Reswara: Jurnal Pengabdian Kepada Masyarakat JURNAL TEKNOLOGI TECHNOSCIENTIA Pilar Teknologi : Jurnal Penelitian Ilmu-ilmu Teknik JagoMIPA: Jurnal Pendidikan Matematika dan IPA Journal of Industial Engineering and Technology KARYA: Jurnal Pengabdian Kepada Masyarakat Dharma: Jurnal Pengabdian Masyarakat Polinomial : Jurnal Pendidikan Matematika Jurnal Sains dan Aplikasi Keilmuan Teknik Industri Prosiding Seminar Nasional Teknik Industri Scientica: Jurnal Ilmiah Sains dan Teknologi Spektrum Industri
Khoiri, Halwa Annisa
Unknown Affiliation
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

Published : 22 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 22 Documents
Search

 1   2   3 
Eksplorasi Etnomatematika Pada Benteng “Van Den Bosch” Ngawi Susanto, Doni; Untari, Erny; Khoiri, Halwa Annisa
Polinomial : Jurnal Pendidikan Matematika Vol. 5 No. 1 (2026)
Publisher : Papanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56916/jp.v5i1.3044

Abstract

Mathematics is often regarded as a discipline detached from social and cultural contexts, even though the development of mathematical concepts is inherently connected to human experiences in understanding space, form, and everyday needs. Ethnomathematics emerges as a perspective that highlights this interrelationship by positioning mathematical practices as an integral part of culture. This study aims to examine the application of mathematical concepts found in Van den Bosch Fort in Ngawi, a nineteenth-century colonial structure built by the Dutch for defense purposes and for monitoring strategic routes at the confluence of the Bengawan Solo and Madiun rivers. Employing a qualitative approach with an ethnographic method, this research conducted direct observations of the building’s structure, interviews with local informants, and visual documentation to identify mathematical elements embedded within the fort’s architectural features. The data analysis techniques used were data collection, data presentation and drawing conclusions. The findings reveal that various concepts of plane and solid geometry are represented through the shapes of the gateways, doors, windows, guard posts, and supporting pillars, which include squares, rectangles, equilateral triangles, right triangles, semicircles, and cylinders. These results demonstrate that colonial architecture was not solely designed based on strategic or military considerations, but also incorporated systematic mathematical principles. In addition to providing theoretical contributions to ethnomathematics studies, this research holds practical implications for the development of culture-based mathematics learning. By utilizing historical buildings as learning resources, students are expected to gain a more contextual and meaningful understanding of mathematics while cultivating an appreciation for the historical and local values embodied in Van den Bosch Fort.
Analisis Pengendalian Kualitas Pada Proses Coating di PT ABC dengan Pendekatan Statistical Quality Control (SQC) dan FMEA Khoiri, Halwa Annisa; Aryani, Wilis Herlin
Jurnal Sains dan Aplikasi Keilmuan Teknik Industri (SAKTI) Vol. 5 No. 02 (2025): December 2025
Publisher : Teknik Industri Universitas Ma Chung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33479/sakti.v5i02.186

Abstract

PT ABC is a manufacturing company operating in the construction and fabrication sector. One of the projects currently undertaken by PT ABC is the manufacture of 12 sets of off-screen bars. In this process, the coating stage shows a high defect rate, accounting for 35.1% of total defects. This study aims to analyze the quality control process at the coating stage using Statistical Quality Control (SQC) and Failure Mode and Effects Analysis (FMEA). The SQC tools applied include control charts, Pareto diagrams, and fishbone diagrams. SQC is used to identify dominant defect types and their contributing factors, followed by FMEA to determine risk priorities using the Risk Priority Number (RPN) approach. The integration of these two methods provides a comprehensive framework for quality improvement. The results show that the two dominant defects are mottling and dust spray. Based on the RPN calculations, the highest RPN value is 280, caused by inconsistent spraying at corner areas leading to mottling defects. This is followed by excessive spraying distance in dust spray defects with an RPN of 252. Other significant causes are related to human factors, namely operators failing to clean the workpiece surface in dust spray defects and lack of operator attentiveness in mottling defects, both with an RPN value of 210. Based on these findings, several improvement recommendations are proposed, including operator retraining, standardization of spraying distance and angle, and the implementation of surface cleaning procedures prior to the coating process.
Co-Authors Achmad, Amin Yazid Amarullah, Muhammad Saif Aryani, Wilis Herlin Aryaningtyas, Fanny Diantina Astuti, Indra Puji AVANDY, DICY SEFTIAN Azhari, Zahrul Cahyaningtyas, Putri Doni Susanto, Doni Elyuda, Dika Restu Erny Untari, Erny Fandidarma, Bayu Hendarawan, Aloysius Tommy Hendrawan, Aloysius Tommy Isnaini, Wildanul Jurjani, Aladdin Hidayatullah Kurnia, Reza Fitra Mumtaha, Hani Atun Muttaqin, Aan Zainal Nita, Sekreningsih Pratama, Heru Andi Wardana, Bima Triaji Yudha Adi Kusuma