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Engineering, Mathematics and Computer Science Journal (EMACS)
Published by Universitas Bina Nusantara
ISSN : -     EISSN : 26862573     DOI : https://doi.org/10.21512/emacs
Core Subject : Science, Education, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Industrial & Manufacturing Engineering Mathematics
Engineering, MAthematics and Computer Science (EMACS) Journal invites academicians and professionals to write their ideas, concepts, new theories, or science development in the field of Information Systems, Architecture, Civil Engineering, Computer Engineering, Industrial Engineering, Food Technology, Computer Science, Mathematics, and Statistics through this scientific journal.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 7 Documents
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Search results for , issue "Vol. 4 No. 2 (2022): EMACS" : 7 Documents clear
The Highest Retail Price Checker for Web Based Medical Equipment and Necessities Muhammad Daffa Nugroho
Engineering, MAthematics and Computer Science (EMACS) Journal Vol. 4 No. 2 (2022): EMACS
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/emacsjournal.v4i2.8113

Abstract

In the business world that is in medical equipment and staples for customers, the availability and also the need for data is also very important. As time goes on, the data is getting more diverse, which makes various products that are uniform but have significant price differences. This triggers confusion for customers to choose a product, so a price checking application is needed. The purpose of this report is to create a price comparison website application that displays the best prices for medical equipment products and staples. The data collection methodology uses Ideation which collects related journals, books, and credible sources. The application design methodology uses the Waterfall method for web development and maintenance. Product data retrieval is done by using the HTML Web Scraping method. How to test the application is done by Alpha Testing and Beta Testing and also Checking Input Output with BlackBox Testing. From the results of data collection and Web Development PriceCheck provides benefits where customers can find out the best price for the product they are looking for which is also available at the right store.
The Development of E-Butler Hotel Service Robot Benedick Clemons; Ignatius Ferdyan; Kevin Anderson
Engineering, MAthematics and Computer Science (EMACS) Journal Vol. 4 No. 2 (2022): EMACS
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/emacsjournal.v4i2.8119

Abstract

A hotel is a place that provides accommodation, food, drink, and services for people traveling far from home. During this pandemic, many hotels started to apply strict health protocols for social distancing by reducing the number of their employees. For this purpose, we developed a service robot for some works in a hotel called E-butler. E -butler robots can provide amenities delivery service for the guest. The butler application for ordering amenities was developed by using MIT App Inventor as a prototype and will be developed further using Flutter. While the hardware of the E-butler robot is developed using the Mecanum wheels platform and Arduino for controlling the movement of the robot. Furthermore, the e-butler robot is equipped with teleconference devices based on Jetson Nano to facilitate communication between hotel employees and guests. Based on our evaluation, the butler robots can carry out the main task of E-butler, which can replace human butlers in hotels.
Asal Usul Rumus Dasar Transformasi Laplace Wikaria Gazali
Engineering, MAthematics and Computer Science (EMACS) Journal Vol. 4 No. 2 (2022): EMACS
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/emacsjournal.v4i2.8185

Abstract

This paper discusses the Origin of the Basic Formula of the Laplace Transform L{f(t)}=∫_0^∞▒〖e^(-st) f(t) 〗 dt=F(s). To obtain this model, the author derives the basic formula for the Laplace Transform from a Power Series. In this derivation, we use Euler’s number to the power of the function and the Maclaurin Series to obtain the derivation of the Basic Formula for the Laplace Transform where the Maclaurin Series is derived from the Taylor Series.
Encrypted Short Message Service Design Using Combination of Modified Advanced Encryption Standard (AES) and Vigenere Cipher Algorithm Christopher Christopher; Abel Gunawan; Sheila Prima
Engineering, MAthematics and Computer Science (EMACS) Journal Vol. 4 No. 2 (2022): EMACS
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/emacsjournal.v4i2.8273

Abstract

Despite the popularity of social media and Internet-based messaging services, Short Message Service (SMS) is still widely used by a lot of people worldwide. However, in this modern era, Short Message Service (SMS) is not a secure way of sending and receive text messages. Anyone with the right privilleges can easily read all the messages sent using SMS service. Therefore, appropriate cryptographic algorithms should be applied to ensure confidentiality of the message content. In this paper, a modified AES with Vigenere Cipher Algorithm will be used to encrypt the text message, hence greatly increasing the security of the sent messages. Avalanche Effect is chosen as a metric for measuring performance of the proposed algorithm and its implementation. The proposed algorithm shows high Avalanche Effect compared to standard AES algorithm.
Seawater as Alkali Activator in Fly Ash Based Geopolymer Andrie Harmaji
Engineering, MAthematics and Computer Science (EMACS) Journal Vol. 4 No. 2 (2022): EMACS
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/emacsjournal.v4i2.8322

Abstract

Indonesia as a maritime country in the world with 66% of its territory consists of maritime territory. A lot of potential that can be exploited, such as sea water. XRD characterization results indicate that the sea water from Tanjung Priok, North Jakarta, Indonesia has a compound Halite (NaCl) and Bassanite (CaSO4.5H2O) in the salt form. These compounds are alkaline thereby can influence the compressive strength of the geopolymer. Geopolymer is made up of aluminosilicate precursors which are activated by the alkaline activator solution, which usually combines sodium silicate and sodium hydroxide. The precursor material is waste from the coal based power plant called fly ash that produce 219.000 tonne per year and still underutilized but potentially as an alternative to cement. In this study, seawater was used to substitute the sodium hydroxide in alkali activator as an effort to reduce the manufacturing cost of Geopolymer. Geopolymer prepared by mixing fly ash as a precursor, silica sand as aggregates, with activator, then casted and cured by immersion. After 28 days compression test was conducted to measure the strength of resulting geopolymer. The sample consisted of a mixture of fly ash, silica sand, waterglass, and seawater produces strength of 16.60 MPa. X-Ray Diffraction characterization was conducted to study the compound formed from precursors activated with seawater alkali activator. Resulting diffractogram indicate the formation of anorthite compound as proof of Geopolymerization has been successfully occured.
Developing "EMBER": A Fantasy Puzzle Adventure Game with An Approach to Agile by Applying Game-Scrum Methodology Aisha Gemala Jondya; Hisyam Izuddin Anwar; Muhammad Rifky Hermawan; Tobia Azaria Deru
Engineering, MAthematics and Computer Science (EMACS) Journal Vol. 4 No. 2 (2022): EMACS
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/emacsjournal.v4i2.8428

Abstract

Digital games development process is often done using traditional methods. Many digital game developers believe that the game development process cannot be equated and use other software development methods because game development is not only focused on technical processes such as programming and coding but also creative processes such as asset and display design. In this study, the process of developing a fantasy adventure puzzle game was carried out using the Game-Scrum approach, a method modified from the Agile Scrum method. As well as the software development process using the agile method, game development using this method is carried out with an iterative process where each process allows an update of the feedback given to each sprint backlog. At the end of the study it was concluded that although there were still some things that had to be adjusted, basically the Game Scrum method could be adapted for the development of a digital game.
Pemantauan Proyek Dengan Aplikasi Project Management Menggunakan Laravel Nyoman Ayu Gita Gayatri; Satrio Ramadhan Soeksmono; Derick Yudanegara; Kevin Lorenzo
Engineering, MAthematics and Computer Science (EMACS) Journal Vol. 4 No. 2 (2022): EMACS
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/emacsjournal.v4i2.8432

Abstract

The Internal Division (IT) is a unit that has responsibility for project work and also its completion, the projects handled by the Internal Division (IT) are numerous and also have various specifications. For now, the coordination process is still being carried out using Group Chat on Skype, Whatsapp, and Google Meet so that many obstacles or problems are encountered. Based on the results of interviews with the Head Department in the internal division (IT) there are problems in monitoring the project, project work, project file storage locations, communication media between project teams, project management. The purpose and benefits of the research are to provide convenience for the IT division in conducting the process of managing and monitoring the ongoing project, providing project management services within the organization that can be connected between individuals for project management. Needs analysis was carried out using data collection methods in the form of observations and interviews. The methodology used is Waterfall. The Waterfall development methodology is a development model that flows from the first phase to the last. The problem is that project and progress monitoring is carried out through Skype and Whatsapp social media so that there are many group chats that are less effective in working on a project due to lack of information about the project that is being worked on or the project to be worked on (the status of the project). The final result produces a Project Management Application that is used to manage all projects carried out in the IT Division and is able to handle the problems at hand. The scope of the resulting application monitors the progress of the project; has a forum feature as a medium of communication between project teams; provide a place to store files related to the project being worked on; Equipped with a time schedule feature for project work.

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