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All Journal Jurnal Teknoin J@TI (TEKNIK INDUSTRI) Jurnal Rekavasi Jurnal Optimasi Sistem Industri REKAYASA Prosiding Ilmu Pendidikan Jurnal Ilmiah Teknik Industri Proceeding SENDI_U OPERATION EXCELLENCE: Journal of Applied Industrial Engineering JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING JRSI (Jurnal Rekayasa Sistem dan Industri) Wikrama Parahita : Jurnal Pengabdian Masyarakat Tekinfo | Scientific Journal of Industrial and Information Engineering PERFORMA : Media Ilmiah Teknik Industri Civil Engineering Journal Jurnal INTECH Teknik Industri Universitas Serang Raya Jurnal Ilmiah Teknik Industri Indonesian Journal of Electrical Engineering and Computer Science International Journal of Sustainable Transportation Technology Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Automotive Experiences Makara Journal of Technology Metris: Jurnal Sains dan Teknologi
Wahyudi Sutopo
Universitas Sebelas Maret
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Other

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ANALISIS KELAYAKAN INVESTASI PENAMBAHAN MESIN PENGECATAN DENGAN MEMPERTIMBANGKAN PAJAK DAN BIAYA DEPRESIASI SERTA OPERASIONAL CV. CREATIVE 71 Yasmine Husna Arsyifa; Wahyudi Sutopo
Jurnal Rekavasi Vol 5 No 2 (2017)
Publisher : Jurusan Teknik Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (339.422 KB)

Abstract

Artikel ini merupakan kritik perbaikan dari artikel Susetyo dkk (2015) yang membahas mengenai kelayakan investasi dari simulasi sistem perencanaan jumlah mesin yang optimal pada CV. Creative 71. Analisis mengenai kelayakan investasi penambahan mesin tersebut sangat diperlukan. Belum dipertimbangkan biaya pajak, biaya depresiasi, biaya pemeliharaan, dan biaya operasional listrik, membuat perhitungan ulang untuk kelayakan investasi ini sangat diperlukan. Pada artikel ini dilakukan analisis terhadap aspek kelayakan investasi menggunakan metode NPV (Net Present Value), IRR (Internal Rate of Return) dengan asumsi nilai MARR adalah 12%, dan BCR (Benefit Cost Ratio). Selain itu, dipertimbangkan juga perhitungan PPh (Pajak Penghasilan), biaya depresiasi,biaya pemeliharaan, dan biaya operasional listrik mesin pengecatan. Dari perhitungan didapatkan bahwa nilai NPV>0 yaitu Rp360.340.397,- begitupula dengan nilai BCR>1 yaitu 1,650 dan untuk nilai IRR>MARR yaitu 51,332%. Dengan demikian penambahan satu buah mesin pengecatan tersebut menguntungkan bagi perusahaan dengan perhitungan cash flow yang mempertimbangkan pajak, biaya depresiasi,biaya pemeliharaan, dan biaya operasional listrik sehingga hasil analisis kelayakan lebih akurat.
Pemilihan Supplier Biji Plastik dengan Metode Analitycal Hierarchy Process (AHP) dan Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) Jeehad Muhammad; Diah Rahmanasari; Joshua Vicky; Wahyu Ani Maulidiyah; Wahyudi Sutopo; Yuniaristanto Yuniaristanto
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol. 6 No. 2 (2020)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/intech.v6i2.2418

Abstract

Perusahaan perlu mengevaluasi kinerja supplier untuk mendapatkan supplier masuk sesuai dengan kriteria perusahaan. Permasalahan pada PT. Wonorejo Makmur Abadi adalah belum adanya kriteria dan standar yang tepat untuk ditetapkan dalam pemilihan supplier sehingga perusahaan tidak adanya evaluasi kinerja supplier. Tujuan dari penelitian ini adalah untuk mengetahui bobot nilai dari setiap kriteria yang digunakan dalam pengambilan keputusan pemilihan alternatif supplier terbaik di PT “Wonorejo Makmur Abadi”. Kriteria yang digunakan ada tujuh, antara lain: Harga pembelian, kualitas, waktu tenggang pembayaran, ketepatan pengiriman, kemampuan pemenuhan terhadap jumlah pemesanan, jarak supplier, dan pelayanan. Untuk mendapatkan data yang lengkap, peneliti menggunakan metode berupa wawancara dan pengisian kuesioner. Metode yang digunakan dalam pengolahan data pada penelitian ini yaitu metode AHP dan TOPSIS. Berdasarkan pengolahan data menggunakan metode AHP dihasilkan bobot dengan kriteria tertinggi yaitu pada harga pembelian, dilanjutkan secara berturut-turut yaitu kriteria kualitas, waktu tenggang pembayar, ketepatan pengiriman, kemampuan pemenuhan terhadap jumlah pemesanan, jarak supplier, dan pelayanan. Kemudian untuk pengolahan data menggunakan TOPSIS dapat diketahui bahwa supplier Surabaya merupakan supplier yang paling potensial. Prioritas alternative selanjutnya berdasarkan rangking secara berturut-turut yaitu, Supplier Semarang, Supplier Solo, dan Supplier Bandung.
Food Traceability in Supply Chain Based on EPCIS Standard and RFID Technology Evizal Abdul Kadir; Siti Mariyam Shamsuddin; Eko Supriyanto; Wahyudi Sutopo; Sri Listia Rosa
Indonesian Journal of Electrical Engineering and Computer Science Vol 13, No 1: January 2015
Publisher : Institute of Advanced Engineering and Science

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Abstract

The growth of retailer lately very significant especially in food product, selling of food product is not only in conventional market but moreover now is in such mini market, mall, shopping complex, etc. Food traceability is required in supply of food product to make sure items are safe to consume and not in expired date. This paper present on food traceability in supply chain based on Electronic Product Code Information Services (EPCIS), the use of EPCIS standard is refer to Global Standard-1 (GS1) for logistic and supply chain based on Radio Frequency Identification (RFID) Technology. RFID is used for items tagging on food product instead of barcode that currently widely used the advantages of RFID tag compare than barcode make the system is more applicable to used in food traceability. In this case one of food product take into example in supplying which is banana that the process started from farmer until reach to retail house are monitored and recorded by the system. End process of this system is to give services to the consumer of customer based on EPCIS database collected in all the way of process. DOI: http://dx.doi.org/10.11591/telkomnika.v13i1.6919
An Agri-Food Supply Chain Model to Enhance the Business Skills of Small-Scale Farmers Using Corporate Social Responsibility Sutopo, Wahyudi; Hisjam, Muh.; Yuniaristanto, Yuniaristanto
Makara Journal of Technology Vol. 16, No. 1
Publisher : UI Scholars Hub

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Abstract

In general, small-scale vegetable farmers experience problems in improving the safety and quality of vegetables for supplying high-class consumers in modern retailers. Farmer Group and/or Cooperative (FGC) should be able to assist its members to meet the relevant provisions of modern retail on product specifications, delivery terms, and internal business requirements. This study proposed an agri-food supply chain (ASC) model that involves the corporate social responsibility (CSR) activities to enhance the business skills of the FGC as supplier of modern retailer. Multi-objective optimization programming is developed to determine the amount and timing of supply, level of farmers training skills, quality improvement target, and the CSR total cost. The results show that the proposed model can be used to determine the priority of programs in order to empower farmers' groups as modern retail suppliers.
Optimizing Supply Chain Collaboration Based on Agreement Buyer-Supplier Relationship with Network Design Problem Sutopo, Wahyudi; Erliza, Ayu; Heryansyah, Arien
Makara Journal of Technology Vol. 20, No. 3
Publisher : UI Scholars Hub

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Abstract

In recent years, the rising competitive environment with shorter product life cycles and high customization forces industries to increase their flexibility, speed up their response, and enhance concurrent engineering designs. To integrate these prospects, supply chain collaboration becomes a pertinent strategy for industries to strengthen their competitiveness. The network design problem is used to implement supply chain collaboration. In the buying and selling process, sharing information between buyer and supplier are important to obtain a transaction decision. The optimimum supply chain profit can be identified by mathematical model of network design problem. The Mathematical Model takes into consideration the uncertainity in negotiation of supply chain, transportation problems, and locationallocation of products from supplier to buyer in the planning based on the time value of money. The results show that the model can be used to optimize the supply chain profit. The supplier gets a profit because income were received in the initial contract, while the buyer profit comes from lower pay.
Evaluation of Driving Comparative Life Cycle Cost Assessment of Conventional and Electric Motorcycles in Indonesia: Monte Carlo Analysis Lsa Aldira Hafidza; Yuniaristanto; Wahyudi Sutopo; Muhammad Hisjam
Jurnal Optimasi Sistem Industri Vol. 21 No. 2 (2022): Published in November 2022
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v21.n2.p55-65.2022

Abstract

The adoption of electric vehicles (EVs) is one of the solutions to reduce emission problems. Vehicle cost analysis is one of the keys to seizing the Indonesian market. As a consumer, it is not only the purchase price that needs to be considered, but the life cycle costs throughout ownership also need to be considered in the purchase. This study discusses the life cycle cost (LCC) of EVs in Indonesia, especially electric motorcycles (EMs), which will be compared with conventional motorcycles (CMs). In particular, this study aims to encourage the government's target for ownership of 2.1 million EMs in Indonesia by 2025. The novelty of this research is to develop a more comprehensive LCC model by considering the costs in terms of tangible and intangible to compare the two types of motorcycles using Monte Carlo simulation. This simulation is used to coordinate the behavioral uncertainty of motorcycle users. As a result, the value of an EM is more economical than CM for various users. The average value percentage of EMs is lower than CMs by 45% (IDR 30,6 million). In addition, several scenarios are also analyzed to maximize consumer welfare in Indonesia.
PENGEMBANGAN SISTEM DISKON UNTUK PEMBELI KAIN DENGAN MEMPERTIMBANGKAN KONSEP WAKTU NILAI UANG: STUDI KASUS Novitria Arie Prabarini; Wahyudi Sutopo
J@ti Undip: Jurnal Teknik Industri Volume 8, No.3, September 2013
Publisher : Departemen Teknik Industri, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.809 KB) | DOI: 10.12777/jati.8.3.181-186

Abstract

PT XYZ adalah suatu perusahaan tekstil yang memproduksi dan menjual kain grey. Dari data dua tahun terakhir,  perusahaan memiliki masalah dalam memenuhi permintaan pembeli dan telah mengalami kehilangan kesempatan penjualan hingga 9%. Masalah tersebut dapat mengakibatkan kepercayaan pelanggan semakin menurun, bahkan perusahaan dapat kehilangan pembeli. Perkembangan bisnis fashion secara pesat diduga mempengaruhi volume permintaan. Pengembangan sistem diskon yang tepat berdasarkan waktu pemesanan dapat mendorong pembeli untuk lebih cepat dalam melakukan pemesanan sehingga perusahaan dapat menyusun rencana produksi dengan baik. Pada penelitian ini telah dikembangan sistem diskon melalui tiga langkah, yaitu: identifikasi faktor yang dipertimbangkan oleh pembeli dalam mengambil keputusan pemesanan;  formulasi diskon yang mempertimbangkan nilai waktu dari uang (time value of money); dan  prosedur operasi standar sebagai dasar perusahaan mengimplementasikan sistem diskon yang diusulkan. Dari hasil contoh numerik dapat ditunjukkan bahwa sistem usulan dapat digunakan perusahaan mendorong  pembeli memesan lebih awal, rencana produksi dapat disusun lebih cepat, dan pemenuhan permintaan dapat dilakukan lebih baik sehingga hubungan pemasok-pembeli dapat lebih baik.Kata kunci: hubungan pemasok-pembeli, nilai waktu dari uang, prosedur operasi standar, sistem diskon Abstract  XYZ Ltd. is a company which manufactures and sells textile gray fabric. Data from the last two years, the company has problems in fulfilling the demand of buyers and have experienced lost sales opportunities up to 9%. The problem can result in decreased customer confidence, even the company may lose buyers. The rapid development of the fashion business is expected to affect the volume of demand. The development of appropriate discount system based on the appropriate ordering time can encourage buyers to more quickly in an order so that the company can plan production well. In this study, the system has cultivated a discount through three steps, namely: identification of the factors considered by the buyer in making a decision ordering; discounts formulation that considers the time value of money, and standard operating procedures as a basis for implementing the company's discount system proposed. From the numerical example results. It can be shown that the proposed system can be used by company to encourage buyers to order early, the production plan can be developed more quickly, and the order fulfillment can be improved so that the supplier-buyer relationship can be enhanced. Keywords: supplier-buyer relationship, time value of money, standard operating procedures, discount system
Conceptual Design of Business Model Canvas Mobile Battery Swap Charging Station Renny Rochani; Wahyudi Sutopo; Roni Zakaria; Fakhrina Fahma
Jurnal Ilmiah Teknik Industri Vol. 22, No. 1, June 2023
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v22i1.21247

Abstract

The users of electric motorcycle in Indonesia are currently still limited. This is due to three main things, namely the limited amount of energy charging infrastructure, the lack of socialization regarding the knowledge of technical aspects of electric motorcycle and the financing aspects of electric motorcycle ownership. This research develops a conceptual design business model canvas of Mobile Battery Swap Charging Stations (MBSCS) for electric motorcycles which aim to find solutions to the three problems above. The development of the MBSCS model is an alternative to increase the number of electric charging infrastructure quickly, because the advantages of MBSCS include having a higher level of flexibility and simpler installation than Fixed Charging Stations. This research combines the need of increasing infrastructure and improving socialization to the community regarding the advantages of using electric motorcycle through marketing communication media. Increasing the understanding of technical aspects of electric motorcycle is expected to increase people's motivation to adopt electric motorcycle. This research uses secondary data to explore MBSCS business canvas model (BMC), MBSCS ecosystem, and MBSCS prototype design. The analysis illustrates the MBSCS ecosystem that align with the motorcycle users in Indonesia.  The existence of MBSCS is expected to significantly increase the buying interest, adoption, and diffusion of electric motors more broadly.
Exploring the Factors Accelerating the Electric Motorcycle Adoptions: Insights from Theory of Planned Behavior and Travel Behavior Aditya, Muhammad Hafiz; Yuniaristanto, Yuniaristanto; Sutopo, Wahyudi
Automotive Experiences Vol 7 No 1 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.11044

Abstract

Indonesia is a densely populated country where most people use motorcycles for mobility. With increasing carbon emissions, Indonesia plans to migrate conventional motorcycles toward electric ones by 2040. However, the adoption process of electric motorcycles is relatively slow, considering that the number of electric motorcycles is still far from the government's target. This study aims to investigate what factors influence the adoption process of electric motorcycles in Indonesia. Based on 906 samples, an analysis was conducted using a hybrid choice model on willingness to pay more, which considered three components: socio-demographics, Theory of Planned Behavior (TPB), and travel behavior patterns. The results showed that all three components significantly affect the willingness to pay more. Individuals who are older, highly educated, high-income, use public or environmentally friendly transportation, and have a low frequency of mobility for work purposes are more likely to purchase an electric motorcycle. The results of this study provide a new perspective in the unique context of electric motorcycle adoption in Indonesia and conditions that still need improvement when related to the government's long-term targets. This research will be helpful for governments and manufacturers by providing the characteristics of people who are more likely to purchase an electric motorcycle.
Adopsi-Difusi Teknologi Penyimpanan Energi dan Kendaraan Listrik untuk Media Pembelajaran Akses Energi yang Berkelanjutan Sutopo, Wahyudi; Fahma, Fakhrina; Hisjam, Muhammad; Zakariya, Roni; Rochani, Renny; Yuniaristanto, Yuniaristanto; Priyandari , Yusuf
Wikrama Parahita : Jurnal Pengabdian Masyarakat Vol. 8 No. 2 (2024): November 2024
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jpmwp.v8i2.8375

Abstract

Pengabdian kepada Masyarakat (PkM) berlokasi di Kabupaten Magetan, Jawa Timur, wilayah yang memiliki potensi Energi Baru Terbarukan (EBT) yang melimpah dan memiliki rencana investasi pada bidang elektrifikasi. Namun, adopsi-difusi teknologi elektrifikasi dan EBT dari masyarakat masih rendah, diantaranya dapat ditunjukan dengan rendahnya pemanfaatan energi surya dan rendahnya elektrifikasi kendaraan listrik. Solusi yang ditawarkan melalui PkM ini adalah mengembangkan simulator adopsi-difusi teknologi penyim­pan­an energi dan kendaraan listrik untuk media pembelajaran akses energi yang berkelanjutan bagi masyarakat. Metode pelaksanaan PkM dilakukan melalui: merancang media pembelajaran; memasang di taman refugia; menyusun modul dan pelatihan; pendampingan pengelolaan; serta peng­ukuran tingkat penerimaan. Sistem alat peraga yang dikembangkan terdiri dari: 1. etalase PLTS Atap, 2. Stasiun Penukaran Baterai Kendaraan Listrik Umum (SPKLU), 3. sepeda motor listrik, dan 4. smart farming). Media pembelajaran dapat digunakan untuk learning by doing dan selanjutnya dievaluasi perseps­inya terhadap kemudahan akses teknologi energi terbarukan. Pelak­sanaan PkM diharapkan menurunkan “chasm” atau jurang hambat­an adopsi tekno­logi dan masyarakat dapat menerima keberadaan inovasi teknologi. Berdasarkan survei sebelum dan sesudah kepada pengunjung, terlihat ada­nya peningkatan pemahaman akan pentingnya akses energi berkelanjutan yang signifikan dibuktikan dengan uji wilcoxon signed rank dan ditunjukkan kemanfaatannya dari nilai Benefit Cost Ratio (BCR), dimana hasil perhitungan menunjukkan nilai 4,57 sehingga layak diterapkan (BCR > 1,0).
Co-Authors -, Febrinata Aditya, Muhammad Hafiz Ahad Ali Ahmad Rafi Adnanta Aji, Vania Putri Anita Andria Sari Apriliana, Frisheila Sely Aqidawati, Era Febriana Aqidawati, Era Febriana Aqil, Hilmy Ardiansyah, Rakhman Arien Heryansyah Astuti, Rina Wiji Atsiila, Resia Ayusya Khoirun Nisa Azizah Aisyati Chrissandhi, Erico Sofyan Christa Dian Pratiwi Danang Miftahudin Pratama Dewi Handayani Dewiningrum, Ayu Purnama Diah Rahmanasari Didiek Sri Wiyono Diesya, Stephani Dwi Indah Maryanie Dwi Setyo Sulistyono Eko Pujiyanto Eko Supriyanto Ereika Arie Agassi Erliza, Ayu Euis Nurlathifah Evizal Abdul Kadir Fadlilah, Antika Adzary Sekar Fahma, Fakhrina Fakhrina Fahma Fakhrina Fahma Farid Ishartomo Fathin Kusumo Pramesti Pudjiantoro Fauziah Amelia Ananda Febri Muhammad Rachadian Fitri Purnamasari Frisca Pomalia Hastuti, Tiwik Tri Hisjam, Muh Hisjam, Muh. Hisjam, Muhammad Ihwan Susila Jeehad Muhammad Joshua Vicky Kristiawan, Stefanus A. Levinia Dian Laraswati, Levinia Dian Louhenapessy, Bendjamin Lsa Aldira Hafidza Mahesa Jenar Maisyaroh, Anis Marhana, Laily Martha Widhi Dela Utami Maya Revanola Zainida Meidiana Faras Isnafitri Muh. Hisjam, Muh. Muhammad Hisjam Nabilah Nabilah Nancy Octyajati Natalianto, Yosua Naufal Ammar Novitria Arie Prabarini Nugraheni, Diyah Dwi Nur Atikah Nuryanto - P., Yogie Budi Pramesti, Nidya Yutie Pramono, Wakit Prasetyo, Hoedi Pratiwi, Ayu Priyandari , Yusuf Pujiyanto, Eko Rahmatullah, Hasan Ravi Ratnasari, Sintya Renny Rochani Restiannisa, Kinanti Rinanto, Andhy Rochani, Renny Roni Zakaria Roni Zakaria Raung Shamsuddin, Siti Mariyam Silvi Istiqomah Siti Mariyam Shamsuddin Sri Listia Rosa Supriyanto, Eko Wahyu Ani Maulidiyah Wardayanti, Ari Widi Hartono Yasmine Husna Arsyifa Yosua Natalianto Yudhistira, Rasyid Yuniaristanto Yuniaristanto Zakaria, Roni Zakariya, Roni