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Indonesian Journal of Computing, Engineering and Design (IJoCED) Faculty of Engineering and Technology - Sampoerna University L’Avenue Office Tower, North Tower 6th Floor, Jl. Raya Pasar Minggu Kav. 16, Jakarta Selatan 12780, Indonesia
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INDONESIA
Indonesian Journal of Computing, Engineering, and Design
Published by Universitas Sampoerna
ISSN : 26561972     EISSN : 26568179     DOI : https://doi.org/10.35806/ijoced.v1i1.31
Core Subject : Science, Art, Engineering,
Arts Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Indonesian Journal of Computing, Engineering and Design (IJoCED) is an international and open access peer-reviewed journal, published by Faculty of Engineering and Technology, Sampoerna University. IJoCED published original research papers, state of the art reviews and innovative projects on topics leveraging all aspects of Computing, Engineering & Design and their cross-disciplinary applications: from theory to practice. Thus, manuscripts that cover any related issues are encouraged to be submitted to IJoCED. The IJoCED is committed to providing access to quality research article in the area of Computing, Engineering & Design and the cross-disciplinary among areas for all interested readers. The IJoCED will be published two times a year in April and October. The below mentioned fields are the scope and focus for IJoCED. The IJoCED also welcomes innovative articles related any Computing, Engineering and Design fields. Computing: • Smart Embedded Computing • Data Science/ Analytics • Educational computing • Intelligent Systems & Robotics • IT and Social Change • Internet of Things • Business Information Systems • Health Information Systems • Software Engineering • Computer System & Networking • E-Commerce & E-Business • Green Computing • IS Project Management • Smart Technology • Data Analytics for Big Data • Intelligent System for Organizations • Information Security Engineering: • Bioprocess Engineering • Civil Engineering • Energy Engineering • Environmental Engineering • Geotechnical Engineering • Genetic Engineering • Industrial Engineering • Bioprocess Engineering • Industrial Engineering • Social Engineering • Physics Engineering • Chemical Engineering • Electrical Engineering • Computer Engineering • Food Engineering • Geotechnical Engineering • Chemical Engineering • Manufacturing Engineering • Materials Engineering • Engineering Education Design: • Visual Communication Design • Photography • Visual Literacy • Communication Technologies • Human-Computer Interaction • User-based Design • Digital Art • Graphics, Art, and Design • Advertising Design • Theory of Perception • User Experience
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 84 Documents
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JSON Web Token Leakage Avoidance Using Token Split and Concatenate in RSA256 Malvin Malvin; Cutifa Safitri
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 5 No. 1 (2023): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v5i1.325

Abstract

This research aims to protect users from JWT (JSON Web Token) leakage, which is listed plainly in the Response Header in the web browser console. The risk of malicious attackers stealing the JWT is highly dangerous since the API (Application Programming Interface) will be within the control of malicious attackers, leading to identity theft and data abuse due to the JWT leakage. As a solution, this paper proposed a method in which the JWT bearer token will be split, separately encrypted by RSA256, and concatenated into a new unique token to limit attacker accessibility towards the JWT token. The benefit of this proposed method is envisaged to achieve a more secure web application for user data protection and security optimization. The idea of this method is to modify the bearer token by splitting, encrypting, and concatenating it to be a unique token. The product of the encryption process is an unrecognizable token in the form of letters and punctuation which attackers cannot manipulate. The encrypted code will be returned to the initial location in Response Header. After testing, it is proven that modifying the bearer token by splitting and concatenating provides more security to a web application.
An Improved Proactive Handoff Scheme (IPHS) for Target Channel Selection in Cognitive Radio Network Orokpo, James Audu; Tekanyi, A M.S; Abdulkareem, H A; Agbon, Ezekiel E
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 5 No. 1 (2023): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v5i1.293

Abstract

In recent years, one of the challenges of spectrum allocation and utilization was fixed spectrum allocation which lead to spectrum scarcity and underutilization. In an attempt to address this challenge, Cognitive Radio Network (CRN) which uses Dynamic Spectrum Access (DSA) was proposed. It allows licensed users’ or Primary Users’ (PUs) spectrum to be shared with unlicensed users or Secondary Users (SUs). DSA could be achieved by developing an effective channel selection scheme for SUs spectrum handoff. Selecting an appropriate channel for the SUs to continue their interrupted transmission is a challenging task. Several researchers have used different techniques such as Novel Proactive Handoff Scheme (NPHS) to enhance accurate channel selection for spectrum handoff by considering only channel occupancy. These techniques still suffer some set back like high number of spectrum handoff and delay in channel selection. This paper presents an Improved Proactive Spectrum Handoff Scheme (IPHS) for accurate target channel selection in CRN. The improvement is achieved by considering channel signal quality in addition to channel occupancy as a criteria for the selection of a backup channel for spectrum handoff. Simulation results showed that the IPHS reduced the number of spectrum handoff by 15% and 26% as compared to NPHS and IEEE 802.11 scheme respectively. The average delay was also reduced by 13% and 35% as compared to NPHS and IEEE 802.11 scheme respectively.
Design and Development of a Multifunctional Convertible Wheelchair in a Low-Income Country Context Saraf Fariha Moula; Sumaiya Tabassum Sporsho; Nelima Azad Chanda; Md Doulotuzzaman Xames
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 5 No. 1 (2023): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v5i1.304

Abstract

The objective of this study is to design and develop a mobility aid that performs three different functions to serve patients with a cost-effective space utilizing a wheelchair. The focus was to develop an affordable product considering the poor economic status of the targeted users. A convertible multifunctional wheelchair was developed that can be used as a stretcher and as a regular wheelchair, and it has a pair of crutches to assist in walking. The design and stress-strain analysis of the product was done using SolidWorks 2019. Then, the product was manufactured using the simplest available manufacturing tools and materials. It was possible to fabricate a prototype of this multifunctional at a very cheap cost of BDT 14,250 ($162 approximately). However, it is believed that in mass production, the unit cost can be reduced by 40-50%. The fabricated prototype was lightweight with an average weight of approximately 16 kg allowing it to be portable. The design specifications also ensure ergonomic comfort. It can be contended that this device can be a cost-effective solution for patients and public hospitals in Bangladesh and similar low-income countries.
Electrical Losses in Primary Distribution Networks: Case in Holguin Province Alvaro Laurencio Pérez; Igor R. Pérez Maliuk; Olga Pérez Maliuk
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 5 No. 1 (2023): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v5i1.305

Abstract

The electrical losses constitute an indicator of the technical state of the electrical networks, which can reach up to 70% of the total losses that occur in an electrical circuit. In this work, the calculation of the technical losses in 140 electrical distribution networks was carried out in the school belonging to the Holguín province in Cuba. The statistical calculation is performed in order to understand the electrical losses in primary distribution networks of the Holguín province. The method used by Empresa Eléctrica Holguín was acquired for power losses, which considered the number of customers, the maximum demand, and the length belonging to the circuit under study. The Buller equation was used to calculate energy losses, which relates the load and loss factors utilizing a coefficient obtained by statistical considerations. The most affected municipalities were Sagua de Tánamo, Calixto García, and Cacocún, whose losses represented 45% of the total losses. On the other hand, the characteristic coefficient for local primary distribution networks was 0.27.
A Systematic Literature Review of Sustainable Manufacturing: Green Manufacturing Practices in Asia Sri Susilawati Islami; Mustafa Maulana Pane; Annisa Ghina Salsabila; Beatrice Hillary Sinawang; Ivanna Caroline Tarabu; Lazuardi Fauzan Primaputra
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 5 No. 2 (2023): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v5i2.375

Abstract

Sustainable manufacturing is a popular topic due to its importance. Green manufacturing practices have been widely applied in Asia. This study aims to provide a comprehensive overview of the current state of knowledge on sustainable manufacturing practices in Asia, with a particular emphasis on green manufacturing practices. Based on the systematic literature review using VOSViewer software to analyze the content of the published articles, the literature on sustainable manufacturing practices can be classified into three main categories, which are Sustainable manufacturing, Sustainability practices, and Environmental management. Most of the literature related to Green & sustainable science & technology, Environmental Science, Engineering, Manufacturing, Engineering, Environmental, and Environmental Studies that is accounted by 18.84%, 17.39%, 10.41%, 10.41% and 8.70% of the total documents included in the review, respectively.
A Review on Dynamic Network Using Flexible Active-Mode Period Scheme for Telemedicine Iyobhebhe, Matthew; Yaro, A S; Bello, Habeeb; Agbon, E E; Al-Mustapha, M D; Kabir, M T; Salihu, Siyaka O
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 5 No. 2 (2023): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v5i2.315

Abstract

Challenges associated with transmitter node during the process of intelligent transceiver nodes attempting to be active state after receiving a message outside its time slot schedule which might result in energy depletion through receiver node are the most notable origin of excessive energy consumption in the system. Various methods have been carried out to minimize the overhead cost. In this article, we presented the Dynamic Network using Adaptive Wake-Up Interval Media Access Control (MAC) protocol for Wireless Body Area Networks (WBANs) for telemedicine which could lead to the minimization of the energy consumption in the network and maximization of network lifetime. A Receiver Controlled mechanism balances the number of wake-up periods between Receiver node and Transmitter nodes and estimation of traffic load. This article depicts no earlier examination of dynamic network using Flexible Active-Mode period scheme-based media access control protocol for WBAN. Therefore, this review work could lead to the improvement of dynamic network Flexible Active-Mode –media access control protocols and invigorate a clearer way of finding AWI-Media Access Control protocol problems.
Mechanical Properties Analysis on the Reduced Graphene Oxide/Silver Nano Particle / Poly Lactic Acid Composites Iwan Setiawan; Charlene Tiara Rehueliah Pingak; Amartya Natayu; Budi Hadisujoto; Murni Handayani
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 5 No. 2 (2023): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v5i2.377

Abstract

We present the characteristics and mechanical strength of rGO-AgNPs nanocomposites in PLA-based 3D printing. The nanocomposites are characterized using X-ray diffraction and UV-Vis spectroscopy. The XRD spectrum reveals diffraction peaks at 38.14°, 44.30°, 64.50°, and 77.42°, corresponding to the (111), (200), (220), and (3111) planes of the Ag crystals, respectively. Surface observations under the microscope for pure PLA and PLA rGO-AgNPs showed that the surfaces of the samples were uniformly distributed. The results of 3D printing indicated that the 0.10 g rGO-AgNPs nanocomposite particles were evenly distributed, although digital microscopy confirmed the presence of a few small particles that were not uniformly distributed. Tensile tests demonstrated that rGO-AgNPs exhibited higher tensile strength compared to pure PLA. Tensile strength increased as the quantity of rGO-AgNPs decreased. Young's modulus results, ranging from pure PLA to rGO-AgNPs, consistently showed an increase, with the highest Young's modulus measuring 7624.45 kPa. Therefore, specimens containing rGO-AgNPs displayed a greater modulus than others, indicating that rGO-AgNPs enhanced the mechanical properties of PLA-based 3D printing.
Improvement in the Reinforced Concrete Beam with Embedded Polystyrene under Static Load Lim Yong Tat; Jen Hua Ling; How Teck Sia; Leong Wen Kam; Joseph Toh Sheng Ngu
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 5 No. 2 (2023): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v5i2.331

Abstract

Reinforced concrete beam is normally used as a skeletal frame to withstand the loads on the building. However, a long-span beam requires a larger beam section due to the concerns of excessive deflection and failure. Under such circumstances, a large portion of beam strength is used to sustain its own weight which is uneconomical. This problem could be overcome by reducing some portions of concrete using lightweight materials like polystyrene. The replacement should technically be applied without affecting the structural performance of the beam. This study aimed to develop an optimum design of lightweight beam by incorporating polystyrene in the conventional reinforced concrete beam. The specimens were tested with a static load using the four-point load test in order to investigate the behaviour of the beam. The effects of the parameters, such as the spacing of the polystyrene, and the amount of reinforcements were observed. The performance of the beams was evaluated in terms of the ultimate load, strength to weight ratio (s-w ratio), ductility, and failure mechanism. The results show that the lightweight beam, with 11.8% concrete replacement, outperformed the conventional beam by 47% to 61%, in terms of the s-w ratio.
Preservation of West Java Culinary Recipe Using Augmented Reality, Photogrammetry, and Storytelling Illustration Remandhia Mulcki; Fransiska Rachel; Hermanto Laksana
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 5 No. 2 (2023): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v5i2.332

Abstract

Many traditional culinary recipes from West Java are lost because they are not well-documented; this is a concern for many parties. Losing the recipe means losing the "artifacts" of traditional culinary and precious history and philosophy, which are part of local wisdom. Therefore, modern documentation is needed, which is informative, interactive, engaging, and loved by the young generation. This research is about designing West Java traditional culinary recipes using augmented reality, photogrammetry, and storytelling illustration. This study employs action research. For the data collection method, structured interviews with West Java culinary lecturers and Assemblr Augmented Reality (AR) apps creators were used. Then, this data will be used as content for proposing a design solution. Based on the research conducted, the attempt to preserve West Java culinary recipes using augmented reality, photogrammetry, and storytelling illustration is determined by the extent of the fresh, fun, and fascinating concept in all these media to create an excellent first impression as an exciting medium. Once the audience is interested, the transfer of knowledge afterward will be smoother. Fun and funny illustrations can generate the desire to find and taste these traditional foods.
Webtoon Pupus Dropout of School as Educational Media of Gender Equality for Young Generation Karnita, Rosa; Satub, Nanda Pitria; Kusuma, Fitria Angga
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 5 No. 2 (2023): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v5i2.359

Abstract

Gender is a concept that identifies differences between men and women. Along with social and cultural developments from time to time, gender limitations must not be complicated in carrying out work or activities. Both men and women can have rights and obligations regarding gender equality. However, Indonesia is still the lowest country viewing gender equality because patriarchal culture is still inherent in some circles of society. The role of the young generation is needed to increase awareness of gender equality in the modern era. The proximity of the young age to gadgets and technology makes webtoon a platform that can educate readers because it is easy to access and free of charge. The Pupus Putus Sekolah (Pupus Dropout) webtoon can be a medium for educating messages about gender equality through its characters, so it is hoped that awareness of gender equality will increase.

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