Bandung Conference Series: Industrial Engineering Science
type: channel
description: Bandung Conference Series: Industrial Engineering Science merupakan wadah publikasi hasil-hasil penelitian dan pengabdian masyarakat dalam bidang Ilmu Teknik Industri yang telah dipresentasikan pada Seminar Nasional UNISBA yang diselenggarakan tahunan oleh UPT Publikasi Ilmiah Universitas Islam Bandung. BCSIES ini dipublikasikan pertamanya 2021 dengan eISSN 2828-2132 yang diterbitkan oleh UPT Publikasi Ilmiah, Universitas Islam Bandung. Semua artikel diperiksa plagiasinya dengan perangkat lunak anti plagiarisme. Jurnal ini ter-indeks di Google Scholar, Garuda, Crossref, dan <a title="DOAJ" href="https://doaj.org/search/journals?ref=quick-search&source=%7B%22query%22%3A%7B%22filtered%22%3A%7B%22filter%22%3A%7B%22bool%22%3A%7B%22must%22%3A%5B%7B%22terms%22%3A%7B%22bibjson.publisher.name.exact%22%3A%5B%22Universitas%20Islam%20Bandung%22%5D%7D%7D%5D%7D%7D%2C%22query%22%3A%7B%22query_string%22%3A%7B%22query%22%3A%22universitas%20islam%20bandung%22%2C%22default_operator%22%3A%22AND%22%2C%22default_field%22%3A%22bibjson.publisher.name%22%7D%7D%7D%7D%7D" target="_blank" rel="noopener">DOAJ. Terbit setiap Maret dan September.
publisher: UNISBA Press
language: en-US
publication name: Bandung Conference Series: Industrial Engineering Science
issn: 2828-2132
items: Model Prediksi Pembentukan Blast Furnace Slag Berbasis Regresi Linear Berganda pada Industri Baja
items: Perancangan Fasilitas Kerja Pelukisan dengan Memperhatikan Aspek-Aspek Ergonomi pada Proses Pembuatan Keramik
items: Perancangan Sistem Informasi Manajemen Gudang dan Produksi di PT. Duta Ekspor Globalindo
items: Penerapan Sistem Informasi Customer Relationship Management (CRM) di PT Lucas Djaja
items: Sistem Kinerja Berbasis OKR & Business Intelligence Dashboard
items: Perancangan Fasilitas Kerja pada Stasiun Kerja Pemotongan di CV. Buana Ar-Rahni
items: Implementasi CRM pada Perusahaan Konveksi Menggunakan Commercial Application Package Implementation Strategy
items: Perancangan Strategi Pemasaran Berbasis Analisis Sentimen Naive Bayes
items: Usulan Perbaikan Pengendalian Kualitas untuk Mengurangi Cacat Produk di PT. Temaru Engineering Indonesia dengan Metode Six Sigma
items: Penerapan Sistem Enterprise Resource Planning Menggunakan Software Odoo
items: Pengaruh Jenis Biomassa dan Waktu Pirolisis terhadap Kualitas Biochar sebagai Bahan Bakar Padat Terbarukan
items: Peningkatan Automatic Speech Recognition Dialek Bugis-Makassar Menggunakan Data Ucapan Sintetis

Model Prediksi Pembentukan Blast Furnace Slag Berbasis Regresi Linear Berganda pada Industri Baja
type: item
description: Abstract. Blast furnace generates slag as a major by-product in the steel industry, affecting operational efficiency, flux consumption, energy requirements, and waste management. Variations in slag chemical composition contribute to fluctuations in slag formation, requiring a data-driven predictive approach to support process control. This study aims to develop a blast furnace slag formation prediction model using multiple linear regression based on key chemical composition parameters, including CaO, SiO₂, Fe, and Al₂O₃. The research data were obtained from blast furnace process observations during April 2026, consisting of 17 operational datasets. The analysis involved regression model development, significance testing, coefficient of determination evaluation, and comparison between actual and Predicted slag values. The results indicate that the developed regression model achieved an R² value of 0.9244, an adjusted R² value of 0.8969, and a Significance F value of 4.1296 × 10⁻⁶. The model successfully explains most variations in slag formation and demonstrates high agreement between actual and Predicted values. Multiple linear regression provides a potential predictive modeling approach for improving blast furnace operation control and supporting sustainable steel industry development. Abstrak. Blast furnace menghasilkan slag sebagai produk samping utama dalam industri baja yang berpengaruh terhadap efisiensi operasi, konsumsi flux, kebutuhan energi, dan pengelolaan limbah. Variasi komposisi kimia slag menyebabkan perubahan jumlah slag yang terbentuk sehingga diperlukan pendekatan prediktif berbasis data untuk mendukung pengendalian proses. Penelitian ini bertujuan mengembangkan model prediksi pembentukan blast furnace slag menggunakan regresi linear berganda berdasarkan parameter komposisi kimia CaO, SiO₂, Fe, dan Al₂O₃. Data penelitian diperoleh dari pengamatan proses blast furnace selama April 2026 dengan 17 data pengamatan. Analisis dilakukan melalui pembentuka…
creator: Sry Wahyuny Umar L
creator: Setyawati Yani
creator: Syamsuddin Yani
rights: Copyright (c) 2026 Bandung Conference Series: Industrial Engineering Science
date: 2026-07-29
publication date: 2026-07-29
volume: 6
number: 2
starting page: 499
ending page: 508
doi: 10.29313/bcsies.v6i2.24045

Perancangan Fasilitas Kerja Pelukisan dengan Memperhatikan Aspek-Aspek Ergonomi pada Proses Pembuatan Keramik
type: item
description: Abstract. CV. XYZ is a company operating in the clay-based ceramic handicraft industry. The ceramic manufacturing process involves several stage: molding, shaping, drying, painting, glazing, and firing. Field observations revealed that operators at the painting workstation frequently experience fatigue and complain of pain in various body parts while performing tasks such as retrieving produts, setting up product for processing, painting, and storing finished products. These issues have led to delays in completing produts within the scheduled timeframe. This study employs the Nordic Body Map (NBM) questionnaire and the Baseline Risk Identification of Ergonomics (BRIEF) Survey method. Results from the NBM questionnaire administered to three operators indicate frequent complaints of discomfort in the neck, shoulders, upper back, lower back, writs, knees, and ankles. Meanwhile, the BRIEF Survey analysis reveals that the highest occupational risk levels and the highest scores are associated with the tasks of product retrieval, product painting, and product storage. These high scores across all three operators indicate a significant risk of injury, necessitating immediate improvements based on anthropometric principles. Abstrak. CV. XYZ merupakan industri yang bergerak di bidang industry kerjainan keramik yang berbahan baku tanah liat. Pembuatan keramik dilakukan melalui beberapa proses diantaranya proses percetakan, pembentukan, pengeringan, pelukisan, pengglasiran dan pembakaran. Berdasrakan observasi lapangan ditemukan operator pada stasiun kerja pelukisan sering mengalami kelelahan dan mengeluhkan rasa sakit pada beberapa bagian tubuhnya dengan elemen kerja yang dilakukan yaitu pengambilan produk, product setting process, pelukisan dan penyimpanan produk. Sehingga keterlambatan penyelesaian produk dengan jangka waktu yang telah ditentukan. Metode yang digunakan dalam penelitian ini ialah kuesioner Nordic Body Map (NBM), metode Baseline Risk Identification of Ergonomi…
creator: Irwansyah Tri Putra Jungjunan
creator: Harits Nu’man
creator: Iyan Bachtiar
rights: Copyright (c) 2026 Bandung Conference Series: Industrial Engineering Science
date: 2026-07-29
publication date: 2026-07-29
volume: 6
number: 2
starting page: 509
ending page: 516
doi: 10.29313/bcsies.v6i2.24049

Perancangan Sistem Informasi Manajemen Gudang dan Produksi di PT. Duta Ekspor Globalindo
type: item
description: Abstract. PT. Duta Ekspor Globalindo is a company engaged in furniture manufacturing and export. The management of warehouse and production data is not yet fully integrated, causing difficulties in inventory monitoring, delays in information delivery, and data recording errors. This study aims to design and develop a Warehouse and Production Information System that integrates raw material inventory management with production activities. The Prototype method was applied through stages of communication, prototype design, user evaluation, system development, and implementation. A web-based application was developed using the Laravel framework with MySQL as the database management system. The system provides features for inventory monitoring, raw material management, production recording, and material requirement planning. The results show that the proposed system improves data accuracy, accelerates information processing, and enhances coordination between warehouse and production departments, thereby increasing operational effectiveness and efficiency. Abstrak. PT. Duta Ekspor Globalindo merupakan perusahaan yang bergerak di bidang produksi dan ekspor furnitur. Pengelolaan data gudang dan produksi yang belum terintegrasi secara optimal menyebabkan kesulitan dalam pemantauan persediaan bahan baku, keterlambatan penyampaian informasi, serta risiko kesalahan pencatatan data. Penelitian ini bertujuan untuk merancang dan mengembangkan sistem informasi gudang dan produksi yang mampu mengintegrasikan pengelolaan persediaan bahan baku dengan aktivitas produksi. Metode yang digunakan adalah metode prototype yang meliputi tahap komunikasi, perancangan prototipe, evaluasi pengguna, pengembangan sistem, dan implementasi. Sistem dikembangkan berbasis website menggunakan framework Laravel dengan basis data MySQL. Fitur yang tersedia meliputi pengelolaan bahan baku, pemantauan persediaan, perencanaan kebutuhan material, dan pencatatan aktivitas produksi. Hasil penelitian menunjukkan …
creator: Ilham Haruman
creator: Ahmad Arif Nurrahman
creator: Ajrina Febri Suahati
rights: Copyright (c) 2026 Bandung Conference Series: Industrial Engineering Science
date: 2026-07-30
publication date: 2026-07-30
volume: 6
number: 2
starting page: 517
ending page: 526
doi: 10.29313/bcsies.v6i2.24402

Penerapan Sistem Informasi Customer Relationship Management (CRM) di PT Lucas Djaja
type: item
description: Abstract. PT Lucas Djaja has experienced a downward trend in sales due to the lack of an integrated digital customer information system, relying instead on conventional transactions and communication methods. This study aims to design an e-commerce-based Customer Relationship Management (CRM) system to automate information acquisition and provide digital communication channels. The system design method began with an analysis of the company's condition using the 7C Framework of Customer Interface, followed by implementation using the PrestaShop e-commerce platform integrated with the Tawk.to live chat module. The results indicate that this CRM system successfully digitalizes and automates marketing, sales, and customer service processes. This integration provides a digital product catalog database, self-service transactions, real-time communication, and automated analytical reports. In conclusion, implementing a CRM system using PrestaShop and Tawk.to offers a strategic solution to overcome operational issues, enhance work efficiency, and strengthen customer loyalty at PT Lucas Djaja. Abstrak. PT Lucas Djaja mengalami tren penurunan penjualan akibat ketiadaan sistem informasi pelanggan berbasis digital yang terintegrasi, di mana transaksi dan komunikasi masih dilakukan secara konvensional. Penelitian ini bertujuan merancang sistem informasi Customer Relationship Management (CRM) berbasis e-commerce guna mengotomatisasi perolehan informasi dan menyediakan saluran komunikasi digital. Metode perancangan diawali dengan analisis kondisi perusahaan menggunakan kerangka kerja 7C Framework of Customer Interface, kemudian diimplementasikan menggunakan platform e-commerce PrestaShop yang diintegrasikan dengan modul live chat Tawk.to. Hasil penelitian menunjukkan bahwa sistem CRM ini berhasil mendigitalisasi dan mengotomatisasi proses pemasaran, penjualan, dan layanan pelanggan. Integrasi ini menyediakan pangkalan data katalog digital, transaksi mandiri (self-service), komunika…
creator: Abel Roman Saviola
creator: Otong Rukmana
creator: Ahmad Arif Nurrahman
rights: Copyright (c) 2026 Bandung Conference Series: Industrial Engineering Science
date: 2026-07-31
publication date: 2026-07-31
volume: 6
number: 2
starting page: 527
ending page: 536
doi: 10.29313/bcsies.v6i2.24481

Sistem Kinerja Berbasis OKR & Business Intelligence Dashboard
type: item
description: Abstract. PT Inovasi Mandiri Pratama is a mapping and geospatial services company facing constraints such as an unstructured performance measurement system, a high absenteeism rate (9.5%), and a competency mismatch of 38%. This study aims to design an employee performance measurement system based on Objectives and Key Results (OKR) integrated with a Business Intelligence (BI) Dashboard. This study used a quantitative descriptive method. Primary data collection was conducted through questionnaires and interviews, while secondary data was obtained from company documentation. The system design was carried out through the identification of Spencer Competencies, the preparation of Key Performance Indicators (KPI), OKR cascading, and dashboard visualization on Looker Studio. The results showed that 16 out of 20 generic Spencer competencies were identified as relevant, with the Concern for Order competency having the highest urgency. Performance measurement resulted in a variation in employee OKR achievement scores in the range of 0.09 to 0.94. The achievement results are visualized through a BI Dashboard to facilitate management in monitoring actual performance. This research provides managerial implications in the form of an integrated framework between competencies, KPIs, and OKRs embodied in a dashboard information system for more objective decision making. Abstrak. PT Inovasi Mandiri Pratama merupakan perusahaan jasa pemetaan dan geospasial yang menghadapi kendala belum terstrukturnya sistem pengukuran kinerja, tingginya tingkat ketidakhadiran (9,5%), dan adanya mismatch kompetensi sebesar 38%. Penelitian ini bertujuan merancang sistem pengukuran kinerja karyawan berbasis Objectives and Key Results (OKR) yang terintegrasi dengan Dashboard Business Intelligence (BI). Penelitian ini menggunakan metode deskriptif kuantitatif. Pengumpulan data primer dilakukan melalui kuesioner dan wawancara, sedangkan data sekunder dari dokumentasi perusahaan. Perancangan sistem dilakuka…
creator: Fadli Naufal Machmud
creator: Otong Rukmana
creator: Dewi Shofi Mulyati
rights: Copyright (c) 2026 Bandung Conference Series: Industrial Engineering Science
date: 2026-08-01
publication date: 2026-08-01
volume: 6
number: 2
starting page: 537
ending page: 544
doi: 10.29313/bcsies.v6i2.24890

Perancangan Fasilitas Kerja pada Stasiun Kerja Pemotongan di CV. Buana Ar-Rahni
type: item
description: Abstract. Musculoskeletal disorders (MSDs) remain a common issue in the garment industry due to non-ergonomic working postures during production activities. One such condition was identified at CV. Buana Ar-Rahni, where fabric cutting is performed on the floor in squatting or kneeling positions with prolonged trunk bending. This working posture increases the risk of musculoskeletal disorders and contributes to the company's inability to consistently achieve its daily cutting target. This study aims to design an ergonomic fabric cutting workstation to reduce ergonomic risks for cutting operators. The research methods included observation, interviews, the Nordic Body Map (NBM) questionnaire, ergonomic risk assessment using the Workplace Ergonomic Risk Assessment (WERA) method, anthropometric measurements of 23 operators, and design simulation using CATIA V5. The initial WERA assessment produced final scores ranging from 37 to 43, indicating a Medium Risk level. Based on these findings, an ergonomic fabric cutting table equipped with telescopic legs, a fabric roll support, a bearing system, and fabric hooks was designed. Simulation results demonstrated improved working posture, with WERA scores decreasing to 22–29, corresponding to a Low Risk level. The proposed workstation is expected to reduce ergonomic risks while improving the efficiency of the fabric cutting process and supporting the achievement of the company's daily production targets Abstrak. Gangguan Musculoskeletal disorders (MSDs) masih menjadi permasalahan yang sering dijumpai pada industri konveksi akibat postur kerja yang tidak ergonomis selama proses produksi. Salah satu kondisi tersebut terjadi di CV. Buana Ar-Rahni, dimana aktivitas pemotongan kain masih dilakukan di lantai dengan posisi jongkok atau berlutut disertai postur membungkuk dalam waktu yang lama, sehingga meningkatkan risiko gangguan muskuloskeletal dan menyebabkan target pemotongan harian sering tidak tercapai. Penelitian ini bertujuan me…
creator: Rizka Khoerun Nisa
creator: Nur Rahman As’ad
creator: Anis Septiani
rights: Copyright (c) 2026 Bandung Conference Series: Industrial Engineering Science
date: 2026-08-02
publication date: 2026-08-02
volume: 6
number: 2
starting page: 545
ending page: 552
doi: 10.29313/bcsies.v6i2.25030

Implementasi CRM pada Perusahaan Konveksi Menggunakan Commercial Application Package Implementation Strategy
type: item
description: Abstract. Conventional customer administration management at Asep Nasir Konveksi triggers operational issues, such as information fragmentation (data silos), delayed consumer responses, and declining sales due to unstructured follow-up schedules. To overcome this, this research aims to implement a website-based Operational Customer Relationship Management (CRM) system to optimize customer management effectiveness and operational efficiency. The method applied is the Commercial Application Package Implementation Strategy through the adoption of the Krayin CRM software. The PIECES analytical framework is utilized to evaluate system requirements, while Docker technology is applied to facilitate the application deployment process. Based on testing, the system demonstrates significant performance improvements. Order recording duration was successfully reduced from 5–10 minutes to under two minutes, and automatic price quotation generation is completed in 1–2 minutes. The system also successfully eliminates data redundancy and provides real-time order monitoring features. In conclusion, workflow digitalization using a centralized CRM system effectively improves manual operations, facilitates proactive customer service, and strengthens the garment business's competitiveness in the MSME sector. Abstrak. Pengelolaan administrasi pelanggan secara konvensional di Asep Nasir Konveksi memicu masalah operasional, seperti fragmentasi informasi (data silos), kelambatan merespons konsumen, dan menurunnya penjualan akibat ketiadaan jadwal tindak lanjut terstruktur. Untuk mengatasinya, penelitian ini bertujuan mengimplementasikan sistem Operational Customer Relationship Management (CRM) berbasis website guna mengoptimalkan efektivitas manajemen pelanggan dan efisiensi operasional. Metode yang digunakan adalah Commercial Application Package Implementation Strategy melalui adopsi perangkat lunak Krayin CRM. Kerangka analisis PIECES digunakan untuk mengevaluasi spesifikasi kebutuhan sist…
creator: Vini Fatihatul Fiqri P
creator: Agus Nana Supena
creator: Otong Rukamana
rights: Copyright (c) 2026 Bandung Conference Series: Industrial Engineering Science
date: 2026-08-03
publication date: 2026-08-03
volume: 6
number: 2
starting page: 553
ending page: 560
doi: 10.29313/bcsies.v6i2.25751

Perancangan Strategi Pemasaran Berbasis Analisis Sentimen Naive Bayes
type: item
description: Abstract. Aquila Knives is a micro, small, and medium enterprise (MSME) engaged in the production and sale of kitchen knives, butcher knives, outdoor knives, and traditional Indonesian blades. In recent periods, the company experienced a 37% decline in sales, indicating the need to evaluate its marketing strategy based on customer perceptions. This study aims to analyze customer sentiment and develop a marketing strategy based on the analysis results. The dataset consists of 896 YouTube comments collected through web scraping. The analysis process includes text preprocessing, Term Frequency–Inverse Document Frequency (TF-IDF) weighting, sentiment classification using the Naïve Bayes algorithm, and Rule-Based Aspect Extraction based on Kotler’s product quality dimensions: Price, Feature, Reliability, Durability, Performance, Service, and Aesthetic. The results show that the Naïve Bayes model achieved an accuracy of 71.67%. The Performance aspect received the highest positive sentiment, while the Service aspect was dominated by negative sentiment, making it the highest priority for improvement. Based on these findings, a marketing strategy was developed using the Marketing Mix (4Ps) and translated into the 7 StoryBrand framework to support content marketing. The proposed approach provides a more targeted, customer-oriented marketing strategy with the potential to improve marketing effectiveness and increase Aquila Knives' sales. Abstrak. Aquila Knives merupakan usaha mikro, kecil, dan menengah (UMKM) yang bergerak di bidang produksi dan penjualan pisau, seperti pisau dapur, pisau jagal, pisau outdoor, dan senjata tradisional Indonesia. Dalam beberapa periode terakhir, perusahaan mengalami penurunan penjualan sebesar 37%, yang mengindikasikan perlunya evaluasi strategi pemasaran berdasarkan kebutuhan pelanggan. Penelitian ini bertujuan menganalisis sentimen pelanggan serta merancang strategi pemasaran berbasis hasil analisis tersebut. Data penelitian berupa 894 komenta…
creator: Firman Aji Utama
creator: Ahmad Arif Nurrahman
creator: Dewi Shofi Mulyati
creator: Suliadi
rights: Copyright (c) 2026 Bandung Conference Series: Industrial Engineering Science
date: 2026-08-03
publication date: 2026-08-03
volume: 6
number: 2
starting page: 561
ending page: 568
doi: 10.29313/bcsies.v6i2.25756

Usulan Perbaikan Pengendalian Kualitas untuk Mengurangi Cacat Produk di PT. Temaru Engineering Indonesia dengan Metode Six Sigma
type: item
description: Abstract. The manufacturing industry regards production process quality as a critical factor alongside final product quality, as controlling work-in-process allows for the detection and rectification of defects before production is complete. Products failing to meet quality standards result in cost inefficiencies due to rework or scrap, while also negatively impacting the company's image and consumer trust. Driven by rising domestic demand, exports, and investment, the growth of Indonesia's manufacturing sector has heightened expectations for product quality. PT Temaru Engineering Indonesia (PT TEIN), a manufacturer of automotive components such as subscrews and bevel gears, faces challenges in maintaining product quality amidst increasing demand. Despite established quality standards, defects including cracks, holes, and rough surfaces persist, rendering products unfit for use and driving up production costs. This study employs the Six Sigma methodology using the DMAIC (Define, Measure, Analyze, Improve, and Control) approach. Six Sigma aims to reduce process variation and product defects through data-driven analysis, while DMAIC is utilized to identify issues, measure process performance, analyze root causes, design improvements, and maintain control over outcomes. The findings indicate that the quality of bevel gears and subscrews requires ongoing control and improvement. An analysis of defect rates using the Defects per Million Opportunities (DPMO) metric identified production processes and human resource factors as the primary sources of defects. Improvement efforts prioritize strengthening production processes and enhancing workforce communication and engagement, with a priority weight of 3.45. The control phase involves implementing consistent procedures to ensure sustained product quality and improve production process effectiveness. Abstrak. Industri manufaktur menempatkan kualitas proses produksi sebagai faktor penting selain kualitas produk akhir, karena …
creator: Fauzan Nugraha Gonzales
creator: M Dzikron
creator: Dewi Shofi Mulyati
rights: Copyright (c) 2026 Bandung Conference Series: Industrial Engineering Science
date: 2026-08-04
publication date: 2026-08-04
volume: 6
number: 2
starting page: 569
ending page: 578
doi: 10.29313/bcsies.v6i2.25878

Penerapan Sistem Enterprise Resource Planning Menggunakan Software Odoo
type: item
description: Abstract. CV. Jafariah faced several business process management challenges, including manual data recording, fragmented inventory management, duplicated activities, and slow information exchange between departments. These issues reduced operational efficiency and hindered effective decision-making. This study aimed to implement an Enterprise Resource Planning (ERP) system using Odoo to integrate business processes, improve data management, and support operational performance. The research adopted a case study approach using the Accelerated SAP (ASAP) methodology, covering the Project Preparation, Business Blueprint, Realization, and Final Preparation phases. The implementation involved Odoo modules, including Website, Sales, Inventory, Purchase, Invoicing, Accounting, Customer Relationship Management (CRM), Sales Report, and Live Chat. The results showed that all implementation scenarios were successfully executed in accordance with the proposed business processes. Fit and Gap analysis confirmed that the implemented modules met the company's core operational requirements, including sales, inventory control, purchasing, financial recording, reporting, customer relationship management, and communication. The ERP implementation also improved data integration, accelerated information flow, minimized reliance on physical documents, and enhanced operational efficiency. Overall, the implementation of Odoo successfully aligned CV. Jafariah's business processes with an integrated information system, enabling more effective operations and supporting faster, more accurate managerial decision-making. Abstrak. CV. Jafariah masih menghadapi berbagai kendala dalam pengelolaan proses bisnis, seperti pencatatan data secara manual, pengelolaan persediaan yang belum terintegrasi, duplikasi pekerjaan, serta lambatnya penyampaian informasi antar divisi. Permasalahan tersebut menyebabkan proses operasional menjadi kurang efektif dan efisien. Penelitian ini bertujuan menerapkan sistem En…
creator: Muhammad Hanif Fadhilah
creator: Reni Amaranti
creator: Ahmad Arif Nurrahman
rights: Copyright (c) 2026 Bandung Conference Series: Industrial Engineering Science
date: 2026-08-03
publication date: 2026-08-03
volume: 6
number: 2
starting page: 579
ending page: 588
doi: 10.29313/bcsies.v6i2.26023

Pengaruh Jenis Biomassa dan Waktu Pirolisis terhadap Kualitas Biochar sebagai Bahan Bakar Padat Terbarukan
type: item
description: Abstract. Sigi has an untapped biomass potential, thus encouraging the use of biomass waste as a renewable energy source. This study aims to analyze the effect of biomass type and pyrolysis time on biochar quality and evaluate its suitability as a solid fuel. The study used a quantitative experimental method with biochar objects produced from rice husk biomass and mixed biomass (corn cobs, coffee husks, and cocoa husks) in a ratio of 30%:50%:20%. Pyrolysis was carried out at a temperature of 400°C with time variations of 60, 90, 120, 150, and 180 minutes. Data were analyzed based on parameters such as water content, ash content, volatile matter content, bound carbon, and calorific value, then compared with SNI 1683:2021. The results showed that the mixed biomass produced better quality biochar, characterized by a calorific value of 5,410 cal/g, bound carbon of 73,27%, and ash content of 2,06%. The best results were mixed biomass for 150 minutes with a moisture content of 3.95%, ash content of 2,90%, volatile matter content of 35.76%, bound carbon content of 74,85%, and a calorific value of 5,606 cal/g. Increasing pyrolysis time improved the carbonization quality. All samples met the moisture content requirements, but did not meet all the quality parameters of wood charcoal. Optimization of the carbonization process is needed to improve the quality of biochar so that it is suitable for development as a renewable solid fuel. Abstrak. Kabupaten Sigi memiliki potensi biomassa yang belum dimanfaatkan secara optimal, sehingga mendorong pemanfaatan limbah biomassa sebagai sumber energi terbarukan. Penelitian ini bertujuan menganalisis pengaruh jenis biomassa dan waktu pirolisis terhadap kualitas biochar serta mengevaluasi kesesuaiannya sebagai bahan bakar padat. Penelitian menggunakan metode kuantitatif eksperimental dengan objek biochar yang dihasilkan dari biomassa sekam padi dan biomassa campuran (tongkol jagung, kulit kopi, dan kulit kakao) rasio 30%:50%:20%. Pirolisis…
creator: Sulfitri
creator: A. Suryanto
creator: Ruslan Kalla
rights: Copyright (c) 2026 Bandung Conference Series: Industrial Engineering Science
date: 2026-08-04
publication date: 2026-08-04
volume: 6
number: 2
starting page: 589
ending page: 596
doi: 10.29313/bcsies.v6i2.26128

Peningkatan Automatic Speech Recognition Dialek Bugis-Makassar Menggunakan Data Ucapan Sintetis
type: item
description: Abstract. Speech in the Bugis-Makassar dialect poses a major challenge for Automatic Speech Recognition (ASR) systems, particularly in detecting clitic particles that are essential to utterance meaning but do not exist in standard Indonesian. This study investigates the effect of synthetic speech data augmentation using OpenAI's gpt-4o-mini-tts on ASR performance for this dialect, testing four ratios of synthetic-to-real data (0%, 50%, 100%, and 150%) through fine-tuning of the wav2vec2-large-xlsr-indonesian model. Evaluation was conducted using Word Error Rate (WER), Character Error Rate (CER), and Particle Detection Rate (PDR) as a dedicated metric for clitic particle detection. Results show that augmentation at a 50% ratio produced consistent improvements across all metrics compared to baseline, with WER decreasing by 3.47 percentage points and PDR increasing by 3.62 percentage points. Further increases in ratio progressively reduced these gains, forming an inverted-U pattern, with performance at a 150% ratio returning to near-baseline levels. Acoustic analysis identified a significant pitch distribution gap between synthetic and real speech (a difference of 58.09 Hz, or 24.8%) as a contributing factor to performance degradation at higher ratios. These findings indicate that TTS-based synthetic data augmentation effectively supports low-resource dialectal ASR, but only when applied at a controlled, moderate ratio. Abstrak. Tuturan dialek Bugis-Makassar merupakan tantangan besar bagi sistem Automatic Speech Recognition (ASR), khususnya dalam mendeteksi partikel klitik yang penting bagi makna ujaran namun tidak terdapat dalam Bahasa Indonesia standar. Penelitian ini menginvestigasi pengaruh augmentasi data sintetis menggunakan OpenAI gpt-4o-mini-tts terhadap performa ASR dialek tersebut, dengan menguji empat rasio data sintetis terhadap data asli (0%, 50%, 100%, dan 150%) melalui fine-tuning model wav2vec2-large-xlsr-indonesian. Evaluasi dilakukan menggunakan Word …
creator: Muh Fatwah Fajriansyah Marlang
creator: Herdianti Darwis
creator: Huzain Azis
creator: Abdul Rachman Manga
rights: Copyright (c) 2026 Bandung Conference Series: Industrial Engineering Science
date: 2026-08-04
publication date: 2026-08-04
volume: 6
number: 2
starting page: 597
ending page: 604
doi: 10.29313/bcsies.v6i2.26221