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Engineering Science Letter
Published by Indonesian Institute of Science and Technology Research
ISSN : 29618924     EISSN : 2961872X     DOI : https://doi.org/10.56741/esl.v1i02
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology
Engineering Science Letter is an international peer-reviewed letter that welcomes short original research submissions on any branch of engineering, computer science, and technology, as well as their applications in industry, education, health, business, and other fields. Artificial intelligence, image processing, data mining, data science, bioinformatics, computational statistics, electrical engineering, electronics engineering, telecommunications, hardware systems, industrial automation, industrial engineering, fluids and physics engineering, mechanical engineering, chemical engineering, and their applications are among the engineering and computer science topics covered by the journal. All papers submitted will go through a peer-review process to ensure their quality. Submissions must contain original research and contributions to their field. The manuscript must adhere to the author’s guidelines and have never been published before.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol. 1 No. 02 (2022): Engineering Science Letter" : 5 Documents clear
Economic Order Quantity Inventory Considering Perishable Factor in Product, Delay in Payment, All-Unit Discount, and Product Return Roland Y. H. Silitonga; Hanafi Kartawirawan; Siham Bouguern
Engineering Science Letter Vol. 1 No. 02 (2022): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (491.116 KB) | DOI: 10.56741/esl.v1i02.121

Abstract

The inventory existence of the company is a waste but still needed to maintain service level. For drug industry companies, especially pharmaceutical installations, the expiration factor is a factor that needs to be considered because drugs have an expiration date. Previous research has an inventory model that considers product expiration factors, permissible payment delays, and price discounts. The developed study provides a solution to the loss of expiry costs by adding a return factor. This research aims to create an inventory model that considers expiration factors, permissible payment delays, discounts, and product returns. The result of the developed model can minimize the total cost of inventory by 3.37% with the predefined parameters compared to the previous model, which has not considered the return factor.
Virtual Laboratory for Engineering Education: Review of Virtual Laboratory for Students Learning Ibham Veza; Ahmed Sule; Nicky Rahmana Putra; Muhammad Idris; Ihwan Ghazali; Irianto Irianto; Ulka Chandini Pendit; Gipin Mosliano; Arasmatusy
Engineering Science Letter Vol. 1 No. 02 (2022): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (408.515 KB) | DOI: 10.56741/esl.v1i02.138

Abstract

E-learning is currently a rapidly growing trend which attempts to provide an infrastructural configuration that integrates and encompass learning content, services and tools as a single solution which can generate and deliver educational contents and training effectively, efficiently and cost-effectively. In advanced technical education, laboratories are essential learning spaces. Providing laboratory facilities at universities with limited funds and technical know-how is difficult due to the high expenses of installation and upkeep. In order to tackle these obstacles, "virtual laboratories" have been established. Through remote access, virtual laboratories make it possible for users to conduct experiments similar to genuine systems. Consequently, resources of laboratories can be shared across a wide community of geographically dispersed customers while restricting operational expenses and initial set-up to one single institution. This article reviews the virtual laboratory for engineering education. Three distinct e-learning resource methods are discussed. The intrinsic objectives of animation are also explained. Lastly, the conclusion is provided along with recommendation for future studies.
Service Desk in Perspective of Information Technology Infrastructure Library 3rd-Version Dimas Mahardika; Tawar; Saima Ahmed Rahin; Franklin Ore Areche; Ari Fajar Santoso; Ahmad Suryan
Engineering Science Letter Vol. 1 No. 02 (2022): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (736.746 KB) | DOI: 10.56741/esl.v1i02.142

Abstract

ICT services are an essential element in modern organizations. Understanding the workings of service systems with specific frameworks helps manage services well. One of the services in this management is the Service Desk or Helpdesk. This study aims to explain the Service Desk using the ITIL V.3 framework. The method used is descriptive qualitative using relevant references. The results of this study indicate that ITIL V.3 can be used to describe the management of the Service Desk accurately.
An Interim Study of Integrating Spindle, Laser, and Plotter in a CNC Router Machine Rosidah Jaafar; Norfariza Ab Wahab; Basri Bin Bidin; Mohammad Nor Mustaqim Bin Johari; Kaliswaran A/L Mogal; Megat Iskandar Fedileh
Engineering Science Letter Vol. 1 No. 02 (2022): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3707.927 KB) | DOI: 10.56741/esl.v1i02.159

Abstract

Although there are so many CNC routers that have been created all around the world, when this manuscript was written, an integrated CNC router with multi different functions was still not common. In this work, we proposed, designed, fabricated, and evaluated a low-cost CNC Router machine that can perform numerous tasks (i.e., spindle engraving, laser, and plotter). Although we first employed a market-available CNC machine, we have developed, changed, and improved almost everything of it so that it can run and go through multiple processes in a single coding process with higher accuracy and efficiency. As a result, the proposed machine is adjusted to conduct an integrated operation without making any significant changes. Through the calibration process, we have validated that the proposed system is capable of performing high-accuracy processes. The proposed CNC router has a wide range of applications and can conduct a variety of engraving procedures, including plotting. Furthermore, when the machine is running, the project runs thru the checks on the accuracy analysis through several processes to ensure the accurate accuracy of the three available processes (spindle, laser, and plotter).
RFID Tag-equipped Drone for Antenna Array-based Localization: A Step-by-Step MATLAB Simulation Tutorial Arif Abdul Aziz; Muhammad Miftahul Amri
Engineering Science Letter Vol. 1 No. 02 (2022): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (288.418 KB) | DOI: 10.56741/esl.v1i02.161

Abstract

In the last decades, Radio Frequency Identifiers (RFID) has gained massive popularity.In the last decades, Radio Frequency Identifiers (RFID) have gained massive popularity. RFID technology allows data to be encoded in a small form (tag). The data contained inside the RFID tag can be captured wirelessly by the RFID reader through electromagnetic (EM) waves. On the other hand, localization techniques have achieved significant developments in the last decade. There is a wide range of localization tool variations, including satellite-based localization (i.e., GPSS, GLONASS), Bluetooth Low Energy (BLE), IMU, camera, infrared sensor, and even RF-based localization. In this work, we present an accurate localization technique via battery-less passive RFID tag-UAV integration. We have employed two low-complexity methods: generalized cross-correlation with phase transformation (GCC-PHAT) algorithm and triangulation technique. By simulation, we have validated that an accurate antenna array-based dynamic localization can be realized. For the sake of simplicity, we only demonstrate two-dimensional movement. However, the identical method can also be used in the three-dimensional movement. While this paper considers only two antenna arrays and one RFID tag, the proposed concept can be expanded to a more extensive system with a larger number of antenna arrays and RFID tags.

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