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All Journal Journal of Engineering and Management in Industrial System Infotech Journal Jurnal Sistem dan Manajemen Industri Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri JURNAL MANAJEMEN INDUSTRI DAN LOGISTIK Digital Zone: Jurnal Teknologi Informasi dan Komunikasi Jurnal Logistik Indonesia JARES (Journal of Academic Research and Sciences) Enrichment : Journal of Management Indonesian Journal of Computing, Engineering, and Design Journal of Community Services: Sustainability and Empowerment

Anak Agung Ngurah Perwira Redi

Bina Nusantara University

Author-ID : 2241403

Arts Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

Published : 19 Documents Claim Missing Document

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Algoritma Simulated Annealing untuk Optimasi Rute Kendaraan dan Pemindahan Lokasi Sepeda pada Sistem Public Bike Sharing Redi, Anak Agung Ngurah Perwira; Redioka, Anak Agung Ngurah Agung
Jurnal Sistem dan Manajemen Industri Vol. 3 No. 1 (2019)
Publisher : Universitas Serang Raya

The public bike-sharing system has a problem where the number of bicycles at the docking station needs to be balanced to ensure system user satisfaction. The usual solution is to distribute bicycles so that system users can still park for locations that are usually full of bicycles or pick up bicycles at locations that normally lack bicycles. The purpose of solving this problem is to get a vehicle route with the total operating costs of the vehicle. The full vehicle operating costs are associated with the full time taken by the vehicle to distribute the bicycle. Besides, there are also penalty fees related to the lack of bikes or parking slots at the time of operation of the public bike-sharing facility. In this study, two variations of the simulated annealing (SA) algorithm were developed to solve the SBRP problem called SA_BF and SA_CF. The data used comes from a Velib bike-sharing system case study in Paris, France. The results of the experiment show that both the SA_BF and SA_CF algorithms succeeded in solving SBRP. This algorithm has an average difference of 2.21% and 0.36% of the Arc-Indexed algorithm (AI) from previous studies in the first dataset. As for the second dataset, Tabu Search algorithm, SA_BF and SA_CF obtained an average difference of 0.65%, 1.08% and 0.38% of the optimal results.

Implementasi Algoritma Discrete Particle Swarm Optimization Pada Permasalahan CVRP Aisyahna Nurul Mauliddina; Faris Ahmad Saifuddin; Adesatya Lentera Nagari; Anak Agung Ngurah Perwira Redi; Adji Candra Kurniawan; Nanda Ruswandi
Jurnal Sistem dan Manajemen Industri Vol. 4 No. 2 (2020)
Publisher : Universitas Serang Raya

Capacitated Vehicle Routing Problem (CVRP) is known as an NP-hard problem. It is because CVRP problems are very hard for finding optimal solutions, especially in large instances. In general, the NP-hard problem is difficult to solve in the exact method, so the metaheuristic approach is implemented in the CVRP problem to find a near-optimal solution in reasonable computational time. This research uses the DPSO algorithm for solving CVRP with ten instances of benchmark datasets. DPSO implementation uses tuning parameters with the One Factor at Time (OFAT) method to select the best DPSO parameters. The outcome objective function will be compared with several PSO models proposed in previous studies. Statistical test using One Way Reputed Measure ANOVA is needed to compare algorithm performance. First, ANOVA uses for comparing’s results. Then, ANOVA is also used to test DPSO’s performance compared with DPSO-SA, SR-1, and SR-2 algorithm. The computational result shows that the basic DPSO algorithm not competitive enough with other methods for solving CVRP.

The Relationship between Job Stress and Employee Performance in Manufacturing Industry in Indonesia Deasy Lastya Sari; Ribka Intan Putri Sinaga; Helen Storyna; Fergyanto E. Gunawan; Muhammad Asrol; A.A.N. Perwira Redi
JARES (Journal of Academic Research and Sciences) Vol 6 No 2 (2021): September 2021
Publisher : Universitas Islam Balitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/jares.v6i2.1640

One-fourth of Indonesia's Gross Domestic Product or GDP is from the manufacturing industry sector. Indonesia's government has proactively encouraged companies to increase their production capacity to meet the global demands, leading to strong demand for employees to work harder, affecting the workers' health. Overwork is often associated with fatigue, stress, and various health problems. Moreover, stress due to excessive work is a general problem many industries face and frequently influences workers' performance. Therefore, this research intends to examine the relationship between work stress and workers' performance, particularly in the manufacturing industry in Indonesia. The sample data are collected from ninety-three workers at the staff level across various companies in the manufacturing sector. The relationships between the determining factors and the Employee Productivity are evaluated by using the multivariate regression analysis. At the correlation coefficient of 0.972, we found a statistically strong relationship between the work environment and Stress to the workers' performance. The condition of low performance is attributed to the non-standard working hours and low quality of the relationship between colleagues and their superiors. Finally, the research recommends improved management of workers' stress by companies involving the adoption of flexible working hours and better communication between parties via discussion forums and meetings. Therefore, employees will be more motivated to improve work productivity.

METODE GRAVITY LOCATION UNTUK OPTIMASI PENENTUAN LOKASI GUDANG PADA JARINGAN DISTRIBUSI DI PT XYZ Athiyyah Zhafarina (Universitas Pertamina); Adji Candra Kurniawan (Universitas Pertamina); Anak Agung Ngurah Perwira Redi (BINUS University); Nanda Ruswandi (Universitas Pertamina)
Jurnal Manajemen Industri dan Logistik (JMIL) Vol 5, No 1 (2021): page 01 - 74
Publisher : Politeknik APP Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30988/jmil.v5i1.547

AbstractXYZ company is a large textile dye companies in Indonesia. To reach existing consumers with lower transportation costs, XYZ Company plans to add new warehouses. This study provides an analysis using mathematical modeling for the problem of selecting a new facility location for XYZ company. The purpose of the model used is to provide recommendations for the location of candidate warehouse facilities that will be used as new warehouses. This study uses the gravity location method which is implemented simply with Microsoft Excel software. This method was chosen based on its suitability with the description of the problems XYZ company has. In this study, the data required to determine the location of the best facilities were collected according to the gravity location method procedure. The data collected is data related to consumers from XYZ companies such as location (latitude, longitude), number of requests, and distance data. The results of managerial analysis related to the old location and the new location for the facilities that will be used by the XYZ company show that the new location is projected to provide transportation cost savings of Rp. 416,910, - or 21% per week.AbstrakPerusahaan XYZ merupakan perusahaan pewarna tekstil yang cukup besar di Indonesia. Untuk menjangkau konsumen yang sudah ada dengan biaya transportasi yang lebih rendah Perusahaan XYZ berencana melakukan penambahan gudang baru. Penelitian ini memberikan analisa menggunakan pemodelan matematis untuk permasalahan pemilihan lokasi fasilitas baru bagi perusahaan XYZ. Tujuan dari model yang digunakan ini adalah memberikan rekomendasi lokasi kandidat fasilitas gudang yang akan digunakan sebagai gudang baru. Penelitian ini menggunakan metode gravity location yang diimplementasikan secara sederhana dengan perangkat lunak Microsoft Excel. Metode ini dipilih berdasarkan kesesuaiannya dengan deskripsi permasalahan yang dimiliki perusahaan XYZ. Dalam penelitian ini dikumpulkan data yang dibutuhkan untuk menentukan lokasi fasilitas terbaik sesuai dengan prosedur metode gravity location. Data yang dikumpulkan adalah data terkait konsumen dari perusahaan XYZ seperti lokasi (latitude, longitude), jumlah permintaan, dan data jarak. Hasil analisa manajerial terkait lokasi lama dan lokasi baru untuk fasilitas yang akan digunakan perusahaan XYZ menunjukkan lokasi baru diproyeksikan dapat memberikan penghematan biaya transportasi sebesar Rp. 416.910,- atau sebesar 21% per minggu nya.

PERANCANGAN SISTEM INFORMASI PENGELOLAAN PERSEDIAAN BAHAN BAKU DI OUTLET PERUSAHAAN XYZ Raihan Ahmad Fadhil (Universitas Pertamina); A A N Perwira Redi (Bina Nusantara University); Mirna Lusiani (Universitas Pertamina)
Jurnal Manajemen Industri dan Logistik (JMIL) Vol 4, No 2 (2020): page 84 - 168
Publisher : Politeknik APP Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30988/jmil.v4i2.557

AbstractThis research is about design and implementation of information systems in PT XYZ Outlet. The goal is to design and implement an information system that can manage data and inventory management in an integrated and centralized manner. In designing the information system, the Waterfall model is used which has the advantages that have been considered, one of which is conformity to the characteristics of the problems found. Inventory management problems in this study solved using the Min-Max Stock method. The application of the Min-Max Stock method is effective and can reduce inventory costs at PT XYZ. For Chicken Boneless Marinated, Beef Santori Tenderloin, and Coffee Bean items each reduce 5% or IDR 1,610,000, 7% or IDR 1,598,031,648, and 11% or IDR 2,150,000. The results of the design and implementation of this information system can assist in recording and managing inventory that is integrated and centralized.AbstrakPenelitian ini membahas mengenai proses perancangan dan implementasi sistem informasi pada Outlet PT XYZ. Tujuan penelitian ini adalah memperoleh rancangan dan mengimplementasikan suatu sistem informasi yang mengintegrasikan dan memusatkan pengelolaan pencatatan serta pengelolaan persediaan. Model Waterfall digunakan untuk pengembangan sistem informasi dalam penelitian ini karena memiliki kelebihan-kelebihan yang telah dipertimbangkan, salah satunya adalah kesesuaian dengan karakterisik permasalahan yang ditemukan. Sedangkan metode pengelolaan persediaan yang digunakan dalam penelitian ini adalah metode Min-Max Stock. Penerapan Min-Max Stock sebagai metode pengelolaan persediaan efektif untuk diterapkan dan dapat memangkas biaya persediaan di PT XYZ. Untuk barang Chicken Boneless Marinasi, Beef Santori Tenderloin, dan Coffee Bean masing-masing menghasilkan penghematan sebesar 5% atau Rp 1.610.000, 7% atau Rp 1.598.031,648, dan 11% atau Rp 2.150.000. Hasil dari perancangan dan implementasi sistem informasi ini dapat membantu PT XYZ dalam melakukan proses pencatatan dan pengelolaan persediaan yang terintegrasi dan terpusat.

What Motivates People to Earn a Certification in Supply Chain Management? Silvester Adi Surya Herjuna; Anak Agung Ngurah Perwira Redi
Enrichment : Journal of Management Vol. 12 No. 2 (2022): Management Science and Field
Publisher : Institute of Computer Science (IOCS)

This research examines why people enter certification programs. This research examines the supply chain management certification program, the most popular in industry (McCaffery, Backus, & Maxwell, 2020). Extrinsic motivation (Lloyd & Mertens, 2018; Baumann & Bonner, 2016); intrinsic motivation (Quinn et al., 2021; Achtziger & Gollwitzer, 2018; Australian HR Institution, 2017); obtaining a reward or incentive (Australian HR Institution, 2017); and the cost is less than the master's program (Amoruso, 2020; Craig, 2020). AHP is used to rank the 4 criteria's primary aspects. The study sampled experts. Experts are someone with expertise and experience in a subject, system, or sector (Sharma, 2017; Skjong & Wentworth, 2001). This research indicated that incentives were the largest influence in joining a certification program. Extrinsic motivation is second, intrinsic motivation is third, and cost is fourth.

TRANSPORTATION OPTIMIZATION IN THE DISTRIBUTION OF GASLINK CNG C-CYL PRODUCTS USING ANYLOGISTIX CASE STUDY: PT GAGAS ENERGI INDONESIA Kurniawan, Adji Candra; Mustafa, Figa Wafi Mustafa; Redi, Anak Agung Ngurah Perwira
INFOTECH journal Vol. 9 No. 1 (2023)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/infotech.v9i1.5202

PT Gagas Energi Indonesia is a gas subholding company, including the distribution of CNG in the form of cylinders (C-cyl). C-cyl one of the CNG development projects is packaged in a pressurized cylinder of 200-250 pcs and the volume of CNG ranges from 20 - 25 m3 with 16 - 20 kg of LPG. The problem of this research is that the route determination by the company is still done manually so that it has risks in making decisions, assumptions, causing long distances per day and causing the use of a large fleet to be able to cover all customers per day. In solving this problem, the AnyLogistix software transportation optimization model features are used which are solved with the capacited TO experiment to determine distribution routes with the characteristics of the CVRP problem. The data used are 20 location points for potential customers who have the highest demand in the industrial sector, the products used as research objects are CNG C-cyl gaslink and 125 PS Head Truck capacity. The results of the route in the AnyLogistix software for the delivery movement path January 1 2022 – January 5 2022 obtained the total route, the total distance is the same for each day with the first route starting from Pertamina Jaya Hospital, Grand Paragon Mall, PT SINAR HARAPAN PLASTIK, PT DELIDENT, Blok M Plaza, Mercure Jakarta Gatot Subroto, Karimata Taman Mini, Bhayangkara Hospital TK.I R. Said Sukanto, ABUBA Steak – Matraman with a total distance of 106.80 KM, the second route to Richesee Kalimalang, Pondok Kelapa Town Square with a total distance of 14.94 KM and the third route to PT. PIONIRBETON INDUSTRY, Dr. Mintohardjo Naval Hospital, Plataran Menteng, Mercure Jakarta Cikini, Best Western Plus Kemayoran Hotel, Whiz Prime Hotel Kelapa Gading, SANTIKA KELAPA GADING, Jakarta Harbor Hospital, Boutique Café with a total distance of 53.85 KM.

Pemilihan Platform Tanda Tangan Digital Berdasarkan Faktor Keberlanjutan Selama Pandemi COVID-19 Menggunakan Metode AHP Santosa, Ahmad Arif; Perwira Redi, Anak Agung Ngurah
Digital Zone: Jurnal Teknologi Informasi dan Komunikasi Vol. 12 No. 2 (2021): Digital Zone: Jurnal Teknologi Informasi dan Komunikasi
Publisher : Publisher: Fakultas Ilmu Komputer, Institution: Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/digitalzone.v12i2.8014

Sistem tanda tangan digital telah banyak dimanfaatkan terutama untuk kegiatan persetujuan dokumen selama pandemi COVID-19 di Indonesia. Penelitian ini bertujuan untuk mengetahui faktor-faktor dari dimensi sustainability yang mempengaruhi keberlanjutan dalam menggunakan sistem tanda tangan digital berdasarkan metode pendekatan AHP. Penelitian ini menggunakan metode AHP karena metode ini mampu menyelesaikan persoalan dalam suatu kerangka berpikir yang terorganisir sehingga dapat mengambil keputusan secara efektif dan akurat terhadap suatu persoalan dalam penelitian. Hasil penelitian menunjukkan bahwa sub-kriteria continuous improvement dari dimensi ekonomi menjadi prioritas utama yang menjadi penunjang dalam keberlanjutan bisnis penyedia tanda tangan digital. Selanjutnya, melakukan analisis pemilihan platform tanda tangan digital antara PrivyID, DigiSign, dan Manual Input. Berdasarkan hasil perhitungan terhadap tiga alternatif menghasilkan platform DigiSign yang paling unggul dibandingkan dengan platform PrivyID dan Manual Input. Hasil tersebut sejalan dengan komitmen dari platform DigiSign yang memberikan kemudahan bagi pengguna agar dapat memeriksa dokumen yang tertunda dengan cepat, menandatangani dokumen dengan tingkat keamanan yang tinggi dan enkripsi berstandar Internasional, serta dapat melacak status dokumen dengan mudah. Sedangkan tanda tangan elektronik yang dilakukan dengan cara Manual Input memiliki kelemahan yang sangat kritikal, dimana tanda tangan elektronik tersebut tidak terenkripsi sehingga tidak mampu untuk melindungi dokumen dari pencurian data identitas atau entitas perusahaan oleh pihak yang tidak bertanggung jawab. Abstract The digital signature system has been widely used, especially for document approval activities during the COVID-19 pandemic in Indonesia. This study aims to determine the factors of the sustainability dimension that affect sustainability in using a digital signature system based on the AHP approach. This study uses the AHP method because this method is able to solve problems in an organized framework so that it can take a decisions effectively and accurately on a research problem. The results of this study indicate that the sub-criteria for continuous improvement from the economic dimension is the main priority that supports the sustainability of the digital signature provider business. Furthermore, analyze the selection of digital signature platforms between PrivyID, DigiSign, and Manual Input. Based on the results of the calculation of the three alternatives, the DigiSign platform is the most superior compared to the PrivyID platform and Manual Input. This results are in line with the commitment of the DigiSign platform which makes it easy for users to quickly check pending documents, sign the documents with a high level of security and International standard encryption, and easy to tracking the document status. Meanwhile, electronic signatures made by Manual Input have a very critical weakness, where the electronic signature is not encrypted so it is unable to protect documents from theft of identity data or corporate entities by irresponsible parties.

Academic Motivations in Junior High School Refreshing Day Djajasoepena, Rafie; Setiawan, Iwan; Triawan, Farid; Redi, Anak Agung Ngurah Perwira; Fernandez, Nikolas Krisma Hadi; Prasetyo, Ilham; Alibasa, Muhammad Johan; Wandy, Wandy
Journal of Community Services: Sustainability and Empowerment Vol. 4 No. 01 (2024): March 2024
Publisher : Center for Research and Community Service of Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/jcsse.v4i1.448

Motivation is a crucial factor in education as it stimulates, guides, and channels purposeful behavior driven by biological, emotional, social, and cognitive factors. Motivation can be a key element of a student’s achievement. This study explores the role of motivation in academic achievement and describes a community service program undertaken at SMP Negeri 174 Jakarta.. This initiative aims to motivate students before their final exams by sharing success stories of effective study habits and providing tips for exam preparation. The community service activities commenced in late March 2024 and concluded in May 2024. Over 200 participants, consisting of year-9 students, took part in the event, which began in the morning and lasted for two hours, ending before noon. The majority of the resource persons and the organizers were actively involved in the event preparations. The success of this initiative suggests the potential of similar programs to motivate students in the future.

Genetic Algorithm with Cluster-first Route-second to Solve the Capacitated Vehicle Routing Problem with Time Windows : A Case Study Putri, Karina Aginta; Rachmawati, Nur Layli; Lusiani, Mirna; Redi, Anak Agung Ngurah Perwira
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 23 No. 1 (2021): June 2021
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jti.23.1.75-82

In a distribution problem, designing the right distribution route can minimize the total transportation costs. Therefore, this research aims to design a distribution route that produces a minimal distribution distance by clustering the demand points first. We generated the clustering method to cluster the demand points by considering the proximity among the demand points and the total vehicle capacity. In solving this problem, we are using p-median to determine the cluster and a genetic algorithm to determine the distribution route with the characteristics of the CVRPTW problem. CVRPTW or capacitated vehicle routing problem with time windows is a type of VRP problem where there is a limitation of the vehicle capacity and service time range of its demand point. This research concludes that clustering the demand points provides a better result in terms of total distribution costs by up to 16.26% compared to the existing delivery schedule. The performance of the genetic algorithm shows an average difference of 1.73%, compared to the exact or optimal method. The genetic algorithm is 89.68% faster than the exact method in the computational time.

Co-Authors Adesatya Lentera Nagari Adji Candra Kurniawan Adji Candra Kurniawan (Universitas Pertamina) Afandi, Farid Aisyahna Nurul Mauliddina Aisyahna Nurul Mauliddina Anna Maria Sri Asih Apriani, Ratna Agil Athiyyah Zhafarina (Universitas Pertamina) Bayu Nur Abdallah, Bayu Nur Bertha Maya Sopha Deasy Lastya Sari Effendi, Nabila Salsabillah Faris Ahmad Saifuddin Faris Ahmad Saifuddin Fergyanto E. Gunawan Fernandez, Nikolas Krisma Hadi Flame, Roland Ross Faina Helen Storyna Hutahaean, Glenardo Antoi Ilham Prasetyo islam, sri susilawati Iwan Setiawan Khasanah, Annisa Uswatun Kumari, Fairuz Kurniawan, Adji Candra Kurniawan, Adji Chandra Lestari, Tika Endah Liperda, Rahmad Inca Lusiani, Mirna Maghfiroh, Meilinda Fitriani Nur Maula, Fiki Rohmatul Mirna Lusiani (Universitas Pertamina) Muhammad Asrol Muhammad Johan Alibasa Muqimuddin Muqimuddin Mustafa, Figa Wafi Mustafa Nagari, Adesatya Lentera Nanda Ruswandi Nanda Ruswandi (Universitas Pertamina) Persada, Satria Fadil Prasetyo, Yogi Tri Putri, Karina Aginta Rachmawati, Nur Layli Rafie Djajasoepena Raihan Ahmad Fadhil (Universitas Pertamina) Redioka, Anak Agung Ngurah Agung Reny Nadlifatin Ribka Intan Putri Sinaga Rinaldy, Ravi Prananda Ruswandi, Nanda Santosa, Ahmad Arif Sartika, Widya Silvester Adi Surya Herjuna Syaveyenda, Natasha Utami Triawan, Farid Wandy Wandy WINARNO Winarno Winarno Young, Michael Nayat

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