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Journal of Engineering, Technology, and Applied Science (JETAS)
Published by Lamintang Education & Training Centre
ISSN : 27217949     EISSN : 27218090     DOI : https://doi.org/10.36079/lamintang.jetas
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics
The aim of this journal is to publish high-quality articles dedicated to all aspects of the latest outstanding developments in the field of Engineering, Technology and Applied Science. Subject areas cover, but not limited to Physics, Chemistry, Biology, Environmental Sciences, Geology, Engineering, Agriculture, Biotechnology, Nanotechnology, Mathematics and Statistics, Computer Science, Architecture, Industrial and all other science and engineering disciplines.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 78 Documents
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Navigating the Disruption of Digital and Conventional Media in Changing Media Consumption Landscape in Digital Era Mohammad Alzub, Ahmad
Journal of Engineering, Technology, and Applied Science (JETAS) Vol 5 No 1: April 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jetas-0501.517

Abstract

The landscape of media consumption has undergone a significant transformation as a direct result of the proliferation of digital media in our century. This research study investigates the impact that digital media has had on traditional media formats, such as print, broadcast, and advertising. Specifically, the author investigates how the proliferation of digital platforms has had an effect on traditional media formats. This article examines the numerous ways in which digital media has disrupted traditional media by doing a thorough assessment of the available literature and conducting an analysis of the various ways in which digital media has changed consumer behaviour, business models, content generation, and distribution. Additionally, this article explores the difficulties and possibilities that traditional media confront in this age of digital technology and offers suggestions for how scholars and practitioners in the field of media might adapt to and succeed in this shifting environment.
Mobile Application for Learning of "Simpulan dan Ikatan Pengakap Muda" Jaffri, Mohd Iqmal; Abdul Rahman, Mohd Hishamuddin
Journal of Engineering, Technology, and Applied Science (JETAS) Vol 5 No 2: August 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jetas-0502.511

Abstract

Kajian ini dilaksanakan untuk membina aplikasi mudah alih My Scouting Skill bagi sukatan pembelajaran Simpulan dan Ikatan Pengakap Muda dengan menggunakan model ADDIE dan seterusnya mengenalpasti kesahan dan kebolehgunaan aplikasi ini. Tahap kesahan dan kebolehgunaan aplikasi ini dilihat dari aspek penggunaan dan aplikasi yang disediakan. Kajian dijalankan ke atas 30 orang responden yang terdiri daripada Pemimpin Pelatih Pengakap dan nilai min yang diperolehi adalah melebih 3.00 iaitu diantara 3.01 - 4.00. Data diperolehi melalui kaedah kuantitatif untuk mendapatkan maklumat. Instrument kajian yang digunakan adalah borang soal selidik. Hasil kajian menunjukkan aplikasi My Scouting Skill mempunyai kesahan dan kebolehgunaan yang memuaskan. Kesimpulannya, persediaan alat bantu mengajar yang sesuai dapat menarik perhatian murid dalam pengajaran dan pembelajaran (PdP). Diharapkan dengan pembinaan aplikasi mudah alih ini membantu murid dan meningkatkan pemahaman murid dalam topik Simpulan dan Ikatan Pengakap Muda. Mobile Application for Learning of "Simpulan dan Ikatan Pengakap Muda" Abstract: This study was implemented to build the My Scouting Skill mobile application for the Young Scout Knot and Bond learning syllabus by using the ADDIE model and further identify the validity and usability of this application. The level of validity and usability of this application is seen from the aspect of use and the application provided. The study was conducted on 30 respondents consisting of Scout Trainee Leaders and the mean value obtained was more than 3.00 which is between 3.01-4.00. Data were obtained through quantitative methods to obtain information. The research instrument used was a questionnaire. The results show that the My Scouting Skill application has satisfactory validity and usability. In conclusion, the preparation of appropriate teaching aids can attract students in teaching and learning (PdP). It is hoped that with the construction of this mobile application it helps the students and enhances the students understanding in the topic of Knots and Young Scout Bonds. Keywords: ADDIE, Mobile Application, Teaching and Learning.
The Differences between Single Diode Model and Double Diode Models of a Solar Photovoltaic Cells: Systematic Review Udoka, Eze Val Hyginus; Umaru, Kalyankolo Umaru; Edozie, Enerst; Nafuna, Ritah; Yudaya, Nansukusa
Journal of Engineering, Technology, and Applied Science (JETAS) Vol 5 No 2: August 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jetas-0502.541

Abstract

This research paper systematically reviewed and investigated single diode model and double diode model of a solar photovoltaic systems in terms of accuracy, differences under major unknown PV parameters, different optimization and fabrication. This research paper reviewed the differences and the similarities between the single diode model and double diode model. From the review, it was clear that single diode model has less computation time and number of unknown parameters compared to double diode model. The double diode model on its own superiority is more accurate under solar shading condition effect than single diode model but single diode model performs better under high insolation levels. None of the two models is superior than the other but the solar photovoltaic modelers/installers should bear the solar irradiance of the environment before installation
Design of a Solar Powered Water Supply System for Kagadi Model Primary School in Uganda Uche, Chikadibia Kalu Awa; Udoka, Eza Val Hyginus; Kisakye, Abigaba; Maxwell, Kugonza Francis; Wisdom, Okafor O.
Journal of Engineering, Technology, and Applied Science (JETAS) Vol 5 No 2: August 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jetas-0502.548

Abstract

The presence of water is a prerequisite condition for the existence and sustainability of life on the planet. Adequate supply of clean water is even more significant for a primary school as it ensures hydration, sanitation, hygiene leading to a general wellbeing of the pupils. This research work successful designed a solar powered water supply system for Kagadi Model Primary School (KMPS) and its environs. The research design takes into account the population of the students, total daily water demand, water source potential in terms of quality and quantity and insolation potential of the study area which formed the bed bedrock of the suitable location of the designed system. This developed system will help to distribute water fairly to the KMPS and its environ at very a cheap and steady manner for the pump will be powered with solar energy. The solar water pump will be energized using solar energy system to pump water into the storage facility (reservoir) before distributing it by the help of gravitational force to various locations for consumption. This designed solar powered energy system when implemented will curb the problem of water scarcity, provide clean water and reduce unhygienic nature of the environment as it in line with Sustainable Development Goals (SDGs). This study recommends the implementation of this design to provide clean and steady water supply for the residents of the study area.
Introducing Adobe Photoshop Software Tools among Secondary School Multimedia Students by Using Augmented Reality Intang, Ezra; Ahmad Zaki, Nadia Akma; Yani, Achmad
Journal of Engineering, Technology, and Applied Science (JETAS) Vol 5 No 2: August 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jetas-0502.549

Abstract

Aplikasi ini memperkenalkan tools perisian Adobe Photoshop dalam kalangan pelajar Multimedia, yang dibangunkan adalah bertujuan untuk membantu pelajar Multimedia untuk mengenali tools perisian Adobe Photoshop dengan cara yang lebih moden iaitu menggunakan AR. Reka bentuk aplikasi ini dibangunkan dengan menggunakan elemen multimedia seperti audio, video, grafik, animasi dan teks. Kajian ini dijalankan bagi mengetahui persepsi pengguna yang ianya merangkumi kebolehgunaan, keberkesanan dan reka bentuk responden terhadap hasil produk akhir yang telah dibangunkan. Pembangunan aplikasi ini dibangunkan menggunakan ADDIE Model. Dapatan kajian menunjukkan min yang terkumpul bagi responden kajian ialah 3.50 bagi persepsi kebolehgunaan, 3.33 bagi min persepsi keberkesanan dan 3.57 bagi persepsi reka bentuk aplikasi. Secara keseluruhannya, hasil kajian yang diperolehi oleh responden kajian menunjukkan skor min yang tinggi. Introducing Adobe Photoshop Software Tools among Secondary School Multimedia Students by Using Augmented Reality Abstract: This application is introducing Adobe Photoshop software tools among multimedia students; it was developed to help multimedia students to recognize Adobe Photoshop software tools in a more modern way that is using AR. The design of this application is developed using multimedia elements such as audio, video, graphics, animation, and text. This study was conducted to find out consumer perceptions which include the usability, effectiveness, and design of respondents to the final product that has been developed. The development of this application was developed using the ADDIE Model. The findings of the study showed that the cumulative mean for the study respondents was 3.50 for the perception of usability, 3.33 for the mean of the perception of effectiveness, and 3.57 for the perception of application design. Overall, the results obtained by the study respondents showed a high mean score. Keywords: ADDIE, Adobe Photoshop, Augmented Reality, Teaching and Learning Aids.
Analysis of Telegram Use for Online Learning among Teachers and Students Mohd Zulkifli, Filzah Afiqah; Mohd Noor, Noor Anida Zaria
Journal of Engineering, Technology, and Applied Science (JETAS) Vol 5 No 2: August 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jetas-0502.554

Abstract

Tujuan kajian ini dijalankan adalah untuk mengkaji atau menganalisis tahap penguasaan penggunaan Telegram dalam pembelajaran secara atas talian dalam kalangan guru dan pelajar di SMK Sri Kiambang. Responden kajian ini adalah seramai 272 orang yang terdiri dikalangan guru dan pelajar, iaitu seramai 202 orang pelajar dan 70 orang guru. Kajian ini berfokuskan hanya kepada pelajar menengah atas iaitu pelajar tingkatan empat dan lima sahaja. Objektif kajian ini dilaksanakan adalah untuk mengenalpasti tahap kesediaan guru dan pelajar dalam aspek pengetahuan terhadap penggunaan Telegram, dan akhir sekali adalah untuk menganalisis tahap kesediaan guru dan pelajar dalam aspek kemahiran terhadap penggunaan Telegram, tahap kesediaan guru dan pelajar terhadap penggunaan Telegram bagi pembelajaran secara atas talian. Setelah pengkaji melakukan analisis terhadap data yang telah dikutip menunjukkan tahap skor min soalan bagi mengetahui tahap kesediaan pelajar dan guru adalah tinggi iaitu sebanyak 4.12 dalam aspek kemahiran, 4.20 dalam aspek penggunaan dan sebanyak 4.12 dalam aspek kesediaan guru dan pelajar terhadap penggunaan Telegram bagi pembelajaran secara atas talian. Analysis of Telegram Use for Online Learning among Teachers and Students Abstract: The purpose of this study is to study or analyze the level of mastery of the use of Telegram in online learning among teachers and students at SMK Sri Kiambang. The respondents of this study were a total of 272 people consisting of teachers and students, which is a total of 202 students and 70 teachers. This study focuses only on upper secondary students, namely form four and five students only. The objective of this study is to identify the level of readiness of teachers and students in terms of knowledge on the use of Telegram, and finally to analyze the level of readiness of teachers and students in terms of skills on the use of Telegram, the level of readiness of teachers and students on the use of Telegram for online learning. After the researcher analyzed the data collected showed the level of mean score of questions to find out the level of readiness of students and teachers is high, namely 4.12 in terms of skills, 4.20 in terms of use and 4.12 in terms of readiness of teachers and students online. Keywords: Gadget Used, Learning Tools, Telegram.
Real-Time Air Density Measurement with IoT Integration Min Ryu, Soo; Jin Kim, Hye; Lee, Jin Ho; Yamagishi, Kentaro
Journal of Engineering, Technology, and Applied Science (JETAS) Vol 5 No 3: December 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jetas-0503.143

Abstract

This paper presents the design and implementation of an IoT-based air density measurement system that integrates BMP180 and DHT22 sensors with an Arduino Uno microcontroller and ESP8266 Wi-Fi module. The system measures temperature, humidity, and atmospheric pressure to calculate air density in real-time, displaying the results on an LCD screen and transmitting the data to a smartphone app (Blynk) for remote monitoring. The goal of this research is to create a reliable, automated system capable of providing continuous air density measurements without the need for manual intervention. To evaluate the system’s accuracy, data were collected and compared with reference values from the Korea Meteorological Administration (KMA) for August 2023. The comparison revealed that the system produced air density measurements with an average error of less than 0.2%, demonstrating its high level of accuracy and reliability. The system is particularly suited for laboratory environments, where real-time and accurate air density measurements are essential. The use of IoT technology allows for remote data access and continuous monitoring, making the system convenient for various applications, including environmental monitoring and industrial settings where air density plays a crucial role. Future improvements could include sensor calibration enhancements and the integration of additional environmental parameters, such as CO2 levels or particulate matter, to broaden the system’s functionality. Overall, the IoT-based air density measurement system offers a cost-effective and scalable solution for real-time environmental data monitoring.
Enhancing Early Detection of Gingivitis and Periodontitis: A Web-Based Expert System Utilizing Certainty Factor Analysis Kritsada, Chuthan; Somsak, Srisuk; Srisuwan, Pichai; Anong, Buranakorn
Journal of Engineering, Technology, and Applied Science (JETAS) Vol 5 No 3: December 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jetas-0503.337

Abstract

Periodontal diseases, including gingivitis and periodontitis, are prevalent global oral health issues caused by bacterial infections that damage the tissues supporting teeth, potentially leading to tooth loss. Despite their high incidence, many individuals delay seeking treatment until the diseases reach advanced stages, exacerbating complications and systemic health risks. To address this issue, this research proposes an expert system for diagnosing periodontal diseases utilizing the Certainty Factor (CF) method. The CF method, a branch of artificial intelligence, handles uncertainty in medical diagnostics by combining expert knowledge with patient-reported symptoms to estimate the probability of specific diagnoses. Implemented as a web-based application using ASP.NET and C#, the system provides users with real-time diagnostic feedback and treatment recommendations. Tested with patient data from a dental clinic in Thailand, the system demonstrated a 98% accuracy rate in diagnosing gingivitis and periodontitis. This approach not only facilitates early diagnosis but also reduces the burden on healthcare systems, especially in areas with limited dental care access. The findings underscore the effectiveness of integrating AI-driven expert systems in enhancing public health outcomes and improving accessibility to dental care.
Coordinated Overcurrent Relay Development with Arduino and ACS712 Luis Santos, José; Miguel, Reyes Carlos; Isabel Mendoza, Antonio; Garcia, Juan Alvarez
Journal of Engineering, Technology, and Applied Science (JETAS) Vol 5 No 3: December 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jetas-0503.387

Abstract

This study presents the design and evaluation of an overcurrent relay system using Arduino Uno, ACS712 current sensors, and electromagnetic relays. Conducted at the University of Negros Occidental–Recoletos, Philippines, from March 2023, the research focuses on developing a relay with accurate trip times and reliable performance. The designed relay features multiple characteristics including Standard Inverse, Very Inverse, and Extremely Inverse, with time delays ranging from 20 ms to 100 ms and time multiplier settings from 0.1 to 0.23. Testing results showed that the Extremely Inverse characteristic achieved the fastest trip time of 0.11 seconds at 9.3 A, while the Normal Inverse characteristic had a trip time of 1.04 seconds at 1.7 A. The relay's error margins were well within the 5% tolerance limit set by IEC 60255 standards, with errors ranging from 0.027 to 0.028. Effective coordination was achieved by adjusting the Time Multiplier Setting (TMS) values to ensure fault isolation without disrupting other system components. The results confirm that the relay design is both accurate and reliable, suitable for practical implementation in electrical protection systems. Future work could involve integrating additional functionalities and testing under diverse environmental conditions.
Quantification of Earth Material for Sustainable Road Works in Southeast Nigeria Nwamgbowo, Paschal; Nnadi , Ezekiel; Eze, Val Hyginus Udoka; Kibwami, Nathan
Journal of Engineering, Technology, and Applied Science (JETAS) Vol 5 No 3: December 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jetas-0503.597

Abstract

This paper examines the use of earth materials in sustainable road construction in South East, Nigeria. The study aims to determine factors associated with the use of earth materials, identify limiting factors, and examine strategies to improve their use. The study population comprised 60 engineers and craftsmen using local materials. The results show limitations in the use of earth materials in sustainable road works. The study recommends contracting firms to develop better storage facilities for earth materials to prevent damage and wastage. It also suggests incorporating earth materials into construction education curriculums to sensitize students to their potential benefits. The government should adopt a policy of adapting earth materials that require minimal capital and foreign exchange and utilizing available raw materials and skills in small-scale operations. The study's findings highlight the importance of sustainable road construction in Nigeria's socio-economic growth.

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