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All Journal JURNAL AKUNTANSI, EKONOMI dan MANAJEMEN BISNIS JURNAL REKAYASA SISTEM INDUSTRI Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Cahaya Mandalika Jurnal Pengabdian dan Edukasi Sekolah (Jubaedah) Civil Engineering For Community Development Sejahtera: Jurnal Inspirasi Mengabdi Untuk Negeri Jurnal Manajemen dan Teknologi Rekayasa Innovative: Journal Of Social Science Research Jurnal Taguchi : Jurnal Ilmiah Teknik dan Manajemen Industri Journal Serambi Engineering (JSE) Uranus: Jurnal Ilmiah Teknik Elektro, Sains dan Informatika Journal of Integrated System Journal of Information Technology
Sherin Ramadhania
Teknik Industri, Fakultas Teknologi Industri, Institut Teknologi Sumatera, Lampung, Indonesia
Humanities Chemical Engineering, Chemistry & Bioengineering 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 Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

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Usulan Tata Letak Bahan Baku dalam Gudang untuk Meminimasi Jarak Material Handling dengan Metode Dedicated-Storage di PT ABC Salvano, Rudi Atoric; Ramadhania, Sherin; Hanan, Siti
Journal of Integrated System Vol. 8 No. 1 (2025): Journal of Integrated System Vol. 8 No. 1 (June 2025)
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jis.v8i1.10217

Abstract

PT ABC adalah perusahaan petrokimia yang memproduksi biji plastik dan memiliki tiga gudang, salah satunya adalah gudang bahan baku pendukung. Gudang ini mengalami masalah penempatan yang tidak teratur, dimana barang tidak dikelompokkan berdasarkan jenisnya, sehingga menyulitkan staf dalam pencarian dan memperpanjang jarak material handling. Penelitian ini bertujuan untuk mengevaluasi tata letak dan jarak tempuh material handling pada gudang tersebut setelah usulan perbaikan tata letak diimplementasikan. Penelitian juga membandingkan tata letak gudang saat ini dengan tata letak usulan yang dioptimalkan menggunakan metode Dedicated Storage, yaitu metode pengaturan lokasi barang secara tetap sesuai jenisnya, serta menghitung jarak tempuh menggunakan metode rectilinear distance. Berdasarkan hasil analisis, total jarak tempuh material handling pada kondisi awal adalah 40.670,5 meter, yang diakibatkan oleh tata letak yang tidak optimal. Setelah perbaikan tata letak diusulkan, jarak tempuh material handling berkurang signifikan menjadi 9.545,25 meter, dengan pengurangan jarak sebesar 31.125 meter atau setara dengan penurunan sebesar 76,60%.
Perencanaan Perawatan Mesin Genset Pendekatan Metode Reliability Centered Maintenance Dan Maintenance Value Stream Mapping (Studi Kasus : PT Taco Anugrah Corporindo) Ramadhania, Sherin; Setyo Rini, Asih; Mislan, Mislan; Rahmatulloh, Asep; Mustofa, Mustofa
Innovative: Journal Of Social Science Research Vol. 4 No. 4 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i4.12959

Abstract

PT Taco Anugrah Corporindo merupakan produsen HPL di Indonesia, dalam menjalankan proses produksi dibantu dengan dua mesin genset dalam memenuhi kebutuhan pasokan listrik jika terjadi pemadaman listrik oleh PLN, padamnya listrik mendadak dapat menyebabkan proses produksi tidak berjalan optimal, dan akan menyebabkan kerugian bagi perusahaan. Sehingga perlu mengetahui keefektifan sistem perawatan mesin genset, dan penjadwalan ulang perawatan. RCM merupakan suatu pendekatan perawatan dengan mengkombinasi praktik dan strategi. FMEA bertujuan untuk mengevaluasi dengan memperhitungkan beberapa faktor kegagalan dari komponen sistem dan menganalisis dampak terhadap keandalan. MVSM adalah alat untuk memvisualisasikan sistem yang menampilkan aliran material dan data. Hasil pengolahan data didapat nilai RPN terbesar pada Filter oli yaitu nilai RPN 216. Proses perawatan mesin genset pada delay 2 dan delay 3 termasuk kegiatan yang tidak memberikan nilai tambah. Nilai efisiensi perawatan filter oli berdasarkan perhitungan meningkat dari 45,80% menjadi 57,69%, dan Belting kipas dimana sebelumnya 33,59% menjadi 47,36% dan komponen lainnya.
Penerapan Six Sigma untuk Perbaikan Mutu Produk Pengelesan di PT. DKH Banten Doto, Doto; Rini, Asih Setyo; Rahmatullah, Asep; Ramadhania, Sherin; Khaerudin, Dedy; Bryano, Ethana Harits
Innovative: Journal Of Social Science Research Vol. 4 No. 4 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i4.13008

Abstract

Pengendalian mutu merupakan bagian penting dalam menjaga kepuasan pelanggan karena ketidaksesuaian produk dapat mengakibatkan keterlambatan pengiriman, peningkatan biaya dan menurunnya citra perusahaan di mata pelanggan. Perusahaan dapat menggunakan metode six sigma dengan merumuskan DMAIC dan tools yang relevan untuk melakukan perbaikan. Seperti yang terjadi pada PT. DKH penyedia produk bejana tekan, salah satu proses yang kritis adalah pengelasan, yang mengalami banyak masalah terkait hasil pengelasan. Oleh karena itu, penelitian ini bertujuan untuk membantu perusahaan melakukan perbaikan mutu dengan menerapkan six sigma. Berdasarkan data, ketidaksesuaian/cacat yang terjadi adalah peleburan yang tidak sempurna, yang disebabkan oleh beberapa hal, antara lain juru las kurang kompeten, juru las lelah karena bekerja, perawatan pencegahan yang kurang baik, juru las kurang memperhatikan mutu. Perusahaan telah menerapkan six sigma, didapatkan perbandingan nilai sigma sebelum dan sesudah perbaikan sebesar 3,15 dibandingkan dengan sesudahnya yaitu 3,79 yang berarti menurunkan tingkat cacat dari sebelumnya 9,66% turun menjadi 3,26%.  
Perancangan dan Implementasi Jaringan Listrik Terbarukan Berbasis Mikrogrid untuk Pemukiman Terpencil Harahap, Muhammad Ade Kurnia; Ramadhania, Sherin; Ansori, Tirangga; Witjaksono, Gunawan; Malik, Malik
Jurnal Cahaya Mandalika ISSN 2721-4796 (online) Vol. 3 No. 2 (2022)
Publisher : Institut Penelitian Dan Pengambangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jcm.v3i2.2208

Abstract

Jaringan listrik terbarukan berbasis mikrogrid menjadi semakin relevan dalam memenuhi kebutuhan energi di pemukiman terpencil. Artikel ini membahas perancangan dan implementasi jaringan listrik terbarukan berbasis mikrogrid untuk meningkatkan akses terhadap listrik yang andal dan berkelanjutan di lokasi-lokasi terpencil. Keterbatasan infrastruktur listrik di daerah terpencil seringkali menjadi hambatan bagi pemukiman dan aktivitas ekonomi di sana. Oleh karena itu, penelitian ini mengusulkan solusi dengan memanfaatkan sumber energi terbarukan seperti panel surya, turbin angin, dan penyimpanan energi baterai. Dalam tahap perancangan, kami mengevaluasi kebutuhan energi pemukiman terpencil dan sumber daya terbarukan yang tersedia. Selain itu, kami mempertimbangkan aspek-aspek teknis, seperti sistem kontrol, pengaturan tegangan, dan penjadwalan daya untuk memastikan penyediaan energi yang stabil. Penelitian ini juga mencakup pemodelan mikrogrid menggunakan perangkat lunak simulasi dan alat perhitungan yang tepat. Hasil implementasi jaringan listrik terbarukan berbasis mikrogrid ini menunjukkan peningkatan signifikan dalam ketersediaan listrik di pemukiman terpencil. Selain itu, sistem ini memberikan fleksibilitas untuk mengintegrasikan lebih banyak sumber energi terbarukan jika diperlukan. Hal ini mengurangi ketergantungan pada bahan bakar fosil dan berkontribusi pada pengurangan emisi karbon. Selama pengujian dan pemantauan berkelanjutan, jaringan listrik terbarukan berbasis mikrogrid ini terbukti andal dan mampu memberikan daya listrik yang cukup untuk pemukiman terpencil. Artinya, solusi ini berpotensi meningkatkan kualitas hidup penduduk setempat dan mendukung pertumbuhan ekonomi di daerah tersebut. Penelitian ini memberikan kontribusi positif terhadap pengembangan sistem listrik berkelanjutan di wilayah terpencil dan dapat dijadikan acuan bagi proyek serupa di masa depan.
Analisis Produktivitas Electrolytic Tinning Line dengan Metode Overall Equipment Effectiveness dan Penentuan Kebutuhan Sparepart Komponen Mekanikal Kritis dengan Pendekatan ABC Ramadhania, Sherin; Iqballulah, Iqballulah; Mislan, Mislan
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 7 No. 3 (2024): July
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v7i3.30897

Abstract

A company that produces high quality tinplate with international standards. The product produced is tinplate, namely steel sheets coated with tin. In ETL downtime from May 2022 – April 2023, there is a gap between actual and target downtime, causing the production process to not run optimally, and will cause losses for the company. So it is necessary to determine the effectiveness value of the equipment in ETL and determine the need for spare parts for critical mechanical components. OEE is the magnitude of the effectiveness value of equipment or machines in the Company. ABC classification is a classification of a group of materials in descending order based on the cost of using the material per time period. The results of data processing obtained an average OEE value of 80.06% and for items in class A it was a mechanical seal sink roll. Items in class B are solenoid valve – 48VDC and scotch brite and items in class C are mechanical seal DN 45, filter regulator, bearing 7308DB, bearing NU308EC, and hose assembly.
Quality Control Of Capsule A Products Using Statistical Process Control (SPC) And Fuzzy Failure Mode And Effect Analysis (F-FMEA) Methods At PT.LP Sherin Ramadhania; Dinanjar Husni Mubarok; Mislan Mislan; Asep Rahmatullah; Bambang Setyo Panulisan; Dedy Khaerudin
Uranus: Jurnal Ilmiah Teknik Elektro, Sains dan Informatika Vol. 2 No. 1 (2024): Maret: Uranus: Jurnal Ilmiah Teknik Elektro, Sains dan Informatika
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/uranus.v2i1.80

Abstract

LP is one of the pharmaceutical companies located in Serang, Banten. The production of the company is tablets, capsules, and syrup. Problems that occur at PT. LP is a product defect that occurs in capsule filling, especially in capsule A. The purpose of this study is to determine the defective products that occur in capsule A and to find out the proposed improvements that will be made to reduce product defects in capsule A. The research methods used are Statistical Process Control (SPC) and Fuzzy Failure Mode and Effect Analysis (F-FMEA). The population and samples used were defective capsule A during the production process from March 2022 to May 2023, with sampling techniques through production data, observation and interviews. And the results of research using a check sheet show that the percentage of defects reaches 6%, based on the pareto chart, the priority of improvement that needs to be done is for the dominant type of defect, namely the dented capsule reject reaches 90%, and on the control chart there are still control points that are outside the UCL and LCL. FMEA calculations, the RPN value of the capsule is dented on the head of the capsule or capsule body reaches 384, and the FRPN value is 6.76.
Segmentation and Prediction of Store Performance on the Shopee Marketplace Using a Hybrid Clustering Approach, Spatial Analysis, and Feature Importance Eka Yuniar; Sherin Ramadhania; Pascawati Savitri Universitasari; Mas'ud Hermansyah; Akas Bagus Setiawan
J-INTECH ( Journal of Information and Technology) Vol 14 No 01 (2026): Journal of Information and Technology
Publisher : LPPM Universitas Bhinneka Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32664/j-intech.v14i01.2256

Abstract

Marketplace platforms have become a central component of digital commerce, particularly in Southeast Asia where Shopee has emerged as one of the dominant e-commerce ecosystems. The increasing number of sellers on the platform intensifies competition and requires data-driven approaches to understand store performance patterns. This study aims to analyze and predict the performance of Shopee stores using a hybrid data mining approach that integrates clustering, spatial analysis, and feature importance evaluation. The dataset consists of 655 Shopee stores collected on February 18, 2026, including attributes such as number of products, chat response rate, follower count, store rating, store tenure, promotional activity, and seller address. K-Means clustering is applied to segment store performance, while spatial analysis examines the geographic distribution of clusters across Indonesian provinces. Furthermore, a Random Forest classifier is used to predict performance categories and identify influential features affecting store competitiveness. The clustering results reveal three distinct store performance groups representing low, medium, and high activity levels. Spatial analysis indicates that provinces with stronger digital ecosystems, particularly West Java and Jakarta, contain a higher concentration of active stores. Feature importance analysis shows that promotional activity, chat responsiveness, and follower count significantly influence store performance classification. The findings contribute to the development of hybrid data mining frameworks for marketplace analysis and provide practical insights for improving seller competitiveness in digital commerce ecosystems.
STANDARDISASI PROSES MANUFAKTUR UNTUK MENINGKATKAN DAYA SAING UMKM INDUSTRI GENTING PRINGSEWU LAMPUNG Juniwati Juniwati; Muhammad Suryo Panotogomo Abi Suroso; Sherin Ramadhania; Dian Fajarika; Nia Sastra Permata
Civil Engineering for Community Development (CECD) Vol 5, No 1 (2026): Edisi April 2026
Publisher : Department of Civil Engineering Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/cecd.v5i1.39696

Abstract

Kegiatan pengabdian masyarakat ini bertujuan untuk merancang dan menerapkan standardisasi proses manufaktur guna meningkatkan daya saing UMKM industri genting di Kabupaten Pringsewu, Lampung. Permasalahan utama mitra terletak pada proses produksi tradisional yang sangat bergantung pada intuisi dan kondisi cuaca, sehingga menghasilkan variasi kualitas produk yang tinggi. Metode pelaksanaan menggunakan pendekatan Participatory Action Research (PAR) yang diintegrasikan dengan alat manajemen kualitas SIPOC (Supplier, Input, Process, Output, Customer) dan siklus PDCA (Plan-Do-Check-Act). Hasil pengabdian menunjukkan bahwa pemetaan proses bisnis berhasil mengidentifikasi titik kritis pada tahap pengeringan dan pembakaran yang memicu cacat produk. Melalui penyusunan SOP partisipatif dan pendampingan teknis, terjadi transformasi pola kerja mitra dari sistem berbasis pengalaman individu menuju sistem operasional yang lebih terukur dan semi-terstandar. Kesimpulannya, standardisasi ini efektif meningkatkan konsistensi mutu dan kualitas manajerial UMKM. Meskipun demikian, keterbatasan infrastruktur pengeringan mekanis tetap menjadi tantangan utama. Rekomendasi ke depan difokuskan pada modernisasi teknologi produksi serta digitalisasi pelaporan mutu untuk menjamin keberlanjutan industri di masa depan.
Job Safety Analysis as a Sustainable Solution for Hazard Identification and Control in the Sugarcane Klentek Frame Fabrication Process at PT. XYZ Achmad Samudra Dewantara; Sherin Ramadhania; Nia Sastra Permata; Muhammad Suryo Panatagomo Abi Suroso; Eka Rachmadi Endarta Putra
JUMANTARA: Jurnal Manajemen dan Teknologi Rekayasa Vol 5, No 2 (2026): Juli
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/jumantara.v5i2.3613

Abstract

This study applies Job Safety Analysis (JSA) as a qualitative method to manage occupational safety and health (OSH) risks in the production of the Frame Klentek Tebu component at PT. XYZ, an agricultural machinery company. Despite having existing OSH programs, the company continues to face high-frequency incidents of near-misses and Lost Time Injuries, mainly due to heavy machinery use, welding, and painting. The initial analysis suggests that these accidents are caused by procedural lapses and inadequate hazard identification at the task level. The JSA process involved analyzing key tasks Cutting, Fit-Up, Welding, Primer Painting, and Finishing Painting to identify hazards such as falling materials, electric shock and burns during welding, and chemical inhalation during painting. A significant finding was the non-compliance with Personal Protective Equipment (PPE), largely due to operator habits. The research proposed a control hierarchy, prioritizing Elimination (e.g., chamfering sharp edges, replacing forklifts with automated conveyors) and Engineering Controls (e.g., proper grounding systems, installing barriers). This JSA serves as an essential tool for embedding safety into Standard Operating Procedures (SOPs), ensuring business continuity, and creating a safer work environment at PT. XYZ.
Design Of Artificial Neural Network (ANN) Based Analytics Model for Safety Stock and Reorder Point Prediction at Galeri 1 ITERA Guido Immanuel Simanungkalit; Hersa Dwi Yanuarso; Frieska Ariesta Syafnijal; Eka Rachmadi Endarta Putra; Sherin Ramadhania
JUMANTARA: Jurnal Manajemen dan Teknologi Rekayasa Vol 5, No 2 (2026): Juli
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/jumantara.v5i2.3992

Abstract

Inventory management in retail environments such as Galeri 1 ITERA faces significant challenges due to fluctuating and irregular demand patterns, which often lead to stockout and overstock conditions. This study proposes an integrated inventory analytics system that combines ABC classification, demand forecasting using Artificial Neural Network (ANN), safety stock (SS) and reorder point (ROP) calculation, as well as interactive dashboard visualization to support data-driven inventory decision-making. The research methodology consists of: (1) ABC analysis to determine inventory control priorities for 56 products; (2) demand forecasting using ANN models trained on historical sales data; (3) calculation of safety stock and reorder point based on forecasting results and lead time variability; and (4) development of an analytics dashboard using Microsoft Power BI. The proposed ANN model utilizes a multilayer feedforward architecture capable of capturing nonlinear demand patterns. Forecasting performance was evaluated using WAPE, RMSE, and MAE metrics. The results indicate that 24 category-A items (42.9%) contribute to 79.45% of the total inventory consumption value, highlighting the need for tighter inventory control. The ANN forecasting model achieved an average accuracy of 88.72% with an average WAPE of 11.28%, while most products showed stable MAE and RMSE values below 2.5 units. Forecasting outputs were subsequently integrated into safety stock and reorder point calculations, producing dynamic inventory control parameters ranging from 3–209 units for safety stock and 3–296 units for reorder points. The main scientific contribution of this study lies in the integration of ABC classification, ANN-based forecasting, and dashboard-based predictive analytics into a unified inventory management framework for retail operations. The resulting dashboard enables interactive monitoring of inventory conditions, stock alerts, demand predictions, safety stock, and reorder point values, thereby improving the effectiveness and responsiveness of inventory control decisions.
Co-Authors Achmad Samudera Dewantara Achmad Samudera Dewantara Achmad Samudra Dewantara Afif, Sofwan Ahmad Hipni Ansori, Tirangga Asep Rahmatullah Asih Setyo Rini Aulia, Nindy Nur Bambang Setyo Panulisan Bryano, Ethana Harits Budiharjo Budiharjo, Budiharjo Dedy Khaerudin Dian Fajarika, Dian Dinanjar Husni Mubarok Doto Doto Eka Rachmadi Endarta Putra Eka Yuniar Frieska Ariesta Syafnijal Gandara, Ganjar Sidik Guido Immanuel Simanungkalit Gunawan Gunawan Gunawan Witjaksono Hanan, Siti Herdiyani, Ahmad Hersa Dwi Yanuarso Iqballulah, Iqballulah Irfan Muhammad Juniwati Juniwati Khaerudin, Dedy Lucky Setiawan Lucky Setiawan, Lucky Majdi, Nur Cholis Malik Malik, Malik Mas'ud Hermansyah Mislan Muhammad Ade Kurnia Harahap Muhammad Miftahul Abid Muhammad Suroso Muhammad Suryo Panatagomo Abi Suroso Muhammad Suryo Panotogomo Abi Suroso Mustofa Mustofa Mustofa Zein, Aji Mustri, Pingki Avrillia Wandani Nia Sastra Permata Nia Sastra Permata Pascawati Savitri Universitasari Rahmatullah, Asep Rahmatulloh, Asep Ramadhan, Muhamad Rafli Salvano, Rudi Atoric Setiawan, Akas Bagus Siti Hanan Sri Sukmawati Suroso, Muhammad Suryo Panotogomo Abi Susilo, Diyan Wirabuana, Setyo Fiddin Yolla Sukma Handayani