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Mohammad Adam Jerusalem
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INDONESIA
Journal of Engineering and Applied Technology
Published by Universitas Negeri Yogyakarta
ISSN : 27162257     EISSN : 27162265     DOI : https://doi.org/10.21831/jeatech
Core Subject : Engineering,
Automotive Engineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Mechanical Engineering
Journal of Engineering and Applied Technology (JEATech) is an open-access double-blind peer-reviewed journal of Engineering, Technology, and Applied Technology. Authors are invited to disseminate theoretical and practice-oriented topics relevant to: Electrical Engineering Electronic Engineering Informatics engineering Computer Science Mechatronics Engineering Mechanical Engineering Automotive Engineering Civil Engineering Industrial Engineering Applied technology related to the previous fields of engineering
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol 1, No 1 (2020): (March)" : 5 Documents clear
Simulation of automatic fan with LM35 temperature sensor using ATMEGA8535 microcontroller in Proteus application Aljo Leo Nardo; Weri Sugianto
Journal of Engineering and Applied Technology Vol 1, No 1 (2020): (March)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v1i1.29569

Abstract

The human body actually has a temperature and always releases energy at any time, especially body heat. Humans always react when heat occurs either due to temperature or other things. When heat is generated from the temperature of the air, then humans usually prefer a solution to use a fan as a cooler and conditioner to eliminate the feeling of heat that is felt. But the fan that is often used sometimes makes us bother to turn it on or off. So that an automatic fan is made by utilizing a microcontroller-based temperature sensor equipped with a temperature sensor LM35, ATmega8535 and other circuits that are put together then run. The fan can work automatically with the aim that humans are made easier in the process of activating the fan without having to bother and more efficient in energy use because the fan is only needed if the temperature sensor detects the temperature that has been set. From the results of tests conducted on the simulation the system can work very well according to what has been made. The role of sensors, series, is very important in the success of this project.
The design and feasibility test of drive-thru market prototype based on Wemos as the learning media of internet of things (IoT) application Rustam Asnawi; Ariadie Chandra Nugraha; Deny Budi Hertanto; Faranita Surwi; Indriya Galih Prayogi
Journal of Engineering and Applied Technology Vol 1, No 1 (2020): (March)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v1i1.34742

Abstract

This research aims at (1) developing a learning media for the internet of things (IoT) applications in the form of Wemos-based drive-thru market module which is appropriate for Interface Engineering Courses at Electrical Engineering Education, Faculty of Engineering, Universitas Negeri Yogyakarta; and (2) determining the feasibility of the developed learning media. The subject of the research was the 2015 Mechatronics Engineering Education students. The object of the research was the drive-thru market prototype. The research instrument was the questionnaire to obtain data on media feasibility. The proper research results were in the form of (1) the hardware namely the drive-thru market prototype and it's Android application software, (2) the proper function of the prototype and Android applications with the design, (3) the feasibility from the media experts with the percentage of 78% and 83 % respectively that can be categorized as Appropriate, and from the user obtained the percentage of 86.15% with the category of Very Appropriate.
Designing of english challenge mobile game application as the media of english language learning Vito Pratama Putra Setyadharma; Emi Iryanti; Indra Hidayatulloh; Novanda Alim Setya Nugraha
Journal of Engineering and Applied Technology Vol 1, No 1 (2020): (March)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v1i1.34756

Abstract

English became the first foreign language that came to Indonesia in 1967. The human needs of English can already be seen through lots of official scientific works in English and its intense competitions globally. However, still, many people finds it difficult to learn English, for example, the difficulty in understanding tenses, differences between writing, reading and pronouncing. By relying on the latest features on smartphone, which on the mean time, smartphone is one of many gadgets that is the most practical to use in anywhere and anytime, plus, with gaming contents as the best multimedia entertainer application, learning English will be more interactive and easier to use. In this research, Construct 2 is used as The Developer App and Game Development Life Cycle (GDLC) method of Rido Ramadan and Yani Widyani’s version is used as The Development Method. The game system tested by using black box and by giving out Questionnaire for User Interface Satisfaction to 24 respondents, to test the system’s usability. It resulted 80,83% for the whole of the system,  meaning that the whole system is quiet interesting in the respondents’s view. Then, the screen display gained 80,41%, this means that the screen display is very interesting and did not confuse the respondents. Technology and information game gained 75,41%, this means that the information contained in the game is quiet good, however, further development is needed. The introduction of the game’s system gained 71,63%, means that some of the system’s ability did not run effectively and needed further repairment and development. The last, usability and user interface gained 76,25%, this means that the game is quiet interactive to the respondents.  
Effect of cooling distance on DC-LSND treatment on weld defects and weld fractures of A-36 steel Heri Wibowo; Muhammad Noer Ilman; Priyo Tri Iswanto
Journal of Engineering and Applied Technology Vol 1, No 1 (2020): (March)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v1i1.34597

Abstract

Control of weld defects and weld fractures in the welding construction should be done to provide the quality assurance of the welding products and to provide a positive assessment of construction to meet technical and economic requirements. The objective of this study is to investigate the effect of the cooling distance on DC-LSND (dynamic controlled low stress no distortion) treatment on weld defects and weld fractures to obtain the best characteristic of the treatment. In this research, DC-LSND treatment was performed by cooling the both sides near weld line applied in welding process. The cooling media used cryogenic liquid nitrogen sprayed by nozzle. The nozzle was placed at a various distance behind the weld torch. Weld defect was investigated by radiograph test. Tensile strength was tested by servo pulser machine and weld fracture was examined by macro structure and SEM. Results showed that the DC-LSND treatment with a cooling nozzle that is too close to the weld torch has the potential to cause weld imperfections. Porosity and initial welding defect lead to the decrease in the tensile strength of the weld metal and the brittle fracture based on the fracture shape. SEM fractography shows that DC-LSND treatment tends to increase the number of inclusions that have an effect on increasing hardness.
Characteristics of ASTM A36 steel plate corrosion rate due to bending treatment with angle, corrosion media, and corrosion time variations Muhamad Zainal Arifin; Djoko Kustono; Widiyanti Widiyanti
Journal of Engineering and Applied Technology Vol 1, No 1 (2020): (March)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v1i1.31478

Abstract

Bending can cause stress to the workpiece, where the stress can cause a fine crack in the metal which can lead to corrosion. Corrosion that occurs can result in a decline in the quality of metals, especially in mechanical properties. This study aims to determine the characteristics of the corrosion rate of each bending angle. This study uses low carbon steel with ASTM A36 type plates, this type of steel is often used in ship production. This research is an experimental study using descriptive statistical methods, and 3x3 factorial Anava for testing hypotheses. From this research, the results obtained in the form of corrosion rate values, where the characteristics of the corrosion rate of steel plates with the lowest corrosion resistance are at 60o bending treatment, seawater media, and 48 hours with a corrosion rate of 2.005 mmpy. Corrosion rate characteristics with the best resistance are in the bending treatment of 120o, PDAM water media, and 24 hour time with a corrosion rate of 0.695 mmpy. Hypothesis test results state that there is a significant effect of variations in bending angle, corrosion media, and corrosion time on the value of the corrosion rate.

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