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All Journal Jurnal Pendidikan Teknologi dan Kejuruan Andalasian International Journal of Applied Science, Engineering, and Technology Engineering Science Letter Journal of Novel Engineering Science and Technology Journal of Engineering Researcher and Lecturer Innovation in Engineering
Tun, Hla Myo
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : Journal of Engineering Researcher and Lecturer

 1 
Buckling analysis on various material profiles for truck chassis of ladder frame type Tin, Chau Trung; Tun, Hla Myo
Journal of Engineering Researcher and Lecturer Vol. 1 No. 1 (2022): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (520.426 KB) | DOI: 10.58712/jerel.v1i1.7

Abstract

Chassis is the most important part of a truck, because it is closely related to the safety and weight of the truck. The profiles used for truck chassis differ as follows: C-channel, U-channel and rectangular tube. This study aims to reveal the most ideal profile for use as a truck chassis. The study was conducted using finite element analysis. The study conducted was buckling analysis. The variables observed for each test profile are free vibration, buckling safety factor, and deformation scale. the C channel profile is most ideal for use as a truck chassis. The simulation results show that the C channel profile has a buckling safety factor > 1 and the smallest average deformation occurs in each shape mode. The U channel profile has a light weight, but the deformation that occurs in each shape is greater than that of the C channel. The rectangular tube profile has the greatest safety factor in each shape mode, but has the largest deformation scale and weight.
Design, fabrication and measurement of metal-semiconductor field effect transistor based on zinc oxide material Tun, Hla Myo; Wulansari, Rizky Ema; Pradhan, Devasis; Naing, Zaw Min
Journal of Engineering Researcher and Lecturer Vol. 2 No. 3 (2023): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v2i3.103

Abstract

The paper mainly focuses on the design, fabrication and measurement on Zinc Oxide (ZnO)-based Metal-Semiconductor Field Effect Transistor. The research problem in this study is difficulty on observing the electronic properties of ZnO materials to fabricate the high performance transistor design with non-toxic semiconductor materials. Even though the wide band gap materials of Group III and V possess high performance properties for fabricating the power electronics devices, the harmful impacts could not be reduced. The research solution for the problem statement in this study is emphasized on the non-toxic materials of Group II and VI-based high performance power electronics devices fabrication. The experimental studies of the device fabrication were conducted by Pulse Laser Deposition (PLD) process in standard laboratory. The step-by-step procedures for MSFET device fabrication were discussed and the confirmation of developed device fabrication was completed. The approaches on all measurement were completed based on band diagram condition, quantum interference on metal-semiconductor materials, and current-voltage characteristics. The step by step measurement for fabricated device for the proposed structure could be confirmed by standard measurement techniques. The proposed design has been validated for the utilization of high performance applications. The physical properties and physical characteristics for measurement results were confirmed by the theoretical analyses. The numerical analyses have been completed with the help of MATLAB. All results have been proved by recent research works.
Compact design of circularly polarized microstrip patch antenna with double slip ring resonator for vehicle-to-vehicle communication Zaw, Ko Ko; Khin, Ei Ei; Oo, Thandar; Pradhan, Devasis; Tun, Hla Myo
Journal of Engineering Researcher and Lecturer Vol. 3 No. 1 (2024): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v3i1.122

Abstract

The paper mainly focuses on the compact design of circularly polarized microstrip patch antenna for vehicle-to-vehicle communication. The charging time of electric vehicle is longer waiting time than compared to traditional gasoline-based vehicles. The charging is done at the public charging stations. When the vehicles need charging while driving, they communicate with Dedicated Short Range Communications (DSRC) band to send the information to the nearest vehicles and receive information from the charging station. Moreover, DSRC band is used in many applications area such as Intelligent Transportation System (ITS), Electronic Toll Collection (ETC), Collision Avoidance, and connected vehicles. The research problem in this study is that when installing an antenna on a vehicle, it is important to have a compact size and achieve circular polarization. The research solution for the problem statement in this study is emphasized on 45? inclined slot and corner trimmed is added in rectangular patch to make the current part longer and the impedance matching better, and to get circular polarization. After that, Swiss roll structure CSRR is added in ground plane to improve bandwidth. Finally, outer SRR is added in the ground plane to improve S11. The proposed design has been validated for car-to-car (5.85-5.925 GHZ) communication.
Performance analysis of inserted resonators in microstrip array antenna for biomedical applications Man, Cing Nuam; Win, Thanda; Tun, Hla Myo; Aye, Mya Mya
Journal of Engineering Researcher and Lecturer Vol. 4 No. 1 (2025): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v4i1.177

Abstract

This paper investigates the use of inserted resonators in designing microstrip patch array antenna for biomedical applications, such as respiratory rate detection. The purpose of this study is to analyze size and placement of resonator, and slots which influence the overall performance. The antenna was constructed by connecting two single microstrip patch antennas (11.7mm × 15.7 mm×1.6 mm) on an FR4 substrate with a dielectric constant (????r = 4.4) to form (26 mm × 50mm × 1.6 mm). It achieves a miniaturized design of the expected resonance frequency with directional polarization, and provides good gain and bandwidth. The simulations were operated using FEKO software. The results and size of antenna were compared with references designs. The antenna was also designed for a 5-6 GHz frequency range, making it suitable for ISM band (Industrial, Medical, and Science) band range, low-power wireless applications, including Wi-Fi, and Bluetooth, as well as robotic systems, low-noise amplifier (LNA), 5 G applications, and WiFi 6E standard applications.
Buckling analysis on various material profiles for truck chassis of ladder frame type Tin, Chau Trung; Tun, Hla Myo
Journal of Engineering Researcher and Lecturer Vol. 1 No. 1 (2022): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v1i1.7

Abstract

Chassis is the most important part of a truck, because it is closely related to the safety and weight of the truck. The profiles used for truck chassis differ as follows: C-channel, U-channel and rectangular tube. This study aims to reveal the most ideal profile for use as a truck chassis. The study was conducted using finite element analysis. The study conducted was buckling analysis. The variables observed for each test profile are free vibration, buckling safety factor, and deformation scale. the C channel profile is most ideal for use as a truck chassis. The simulation results show that the C channel profile has a buckling safety factor > 1 and the smallest average deformation occurs in each shape mode. The U channel profile has a light weight, but the deformation that occurs in each shape is greater than that of the C channel. The rectangular tube profile has the greatest safety factor in each shape mode, but has the largest deformation scale and weight.
Design, fabrication and measurement of metal-semiconductor field effect transistor based on zinc oxide material Tun, Hla Myo; Wulansari, Rizky Ema; Pradhan, Devasis; Naing, Zaw Min
Journal of Engineering Researcher and Lecturer Vol. 2 No. 3 (2023): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v2i3.103

Abstract

The paper mainly focuses on the design, fabrication and measurement on Zinc Oxide (ZnO)-based Metal-Semiconductor Field Effect Transistor. The research problem in this study is difficulty on observing the electronic properties of ZnO materials to fabricate the high performance transistor design with non-toxic semiconductor materials. Even though the wide band gap materials of Group III and V possess high performance properties for fabricating the power electronics devices, the harmful impacts could not be reduced. The research solution for the problem statement in this study is emphasized on the non-toxic materials of Group II and VI-based high performance power electronics devices fabrication. The experimental studies of the device fabrication were conducted by Pulse Laser Deposition (PLD) process in standard laboratory. The step-by-step procedures for MSFET device fabrication were discussed and the confirmation of developed device fabrication was completed. The approaches on all measurement were completed based on band diagram condition, quantum interference on metal-semiconductor materials, and current-voltage characteristics. The step by step measurement for fabricated device for the proposed structure could be confirmed by standard measurement techniques. The proposed design has been validated for the utilization of high performance applications. The physical properties and physical characteristics for measurement results were confirmed by the theoretical analyses. The numerical analyses have been completed with the help of MATLAB. All results have been proved by recent research works.
Compact design of circularly polarized microstrip patch antenna with double slip ring resonator for vehicle-to-vehicle communication Zaw, Ko Ko; Khin, Ei Ei; Oo, Thandar; Pradhan, Devasis; Tun, Hla Myo
Journal of Engineering Researcher and Lecturer Vol. 3 No. 1 (2024): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v3i1.122

Abstract

The paper mainly focuses on the compact design of circularly polarized microstrip patch antenna for vehicle-to-vehicle communication. The charging time of electric vehicle is longer waiting time than compared to traditional gasoline-based vehicles. The charging is done at the public charging stations. When the vehicles need charging while driving, they communicate with Dedicated Short Range Communications (DSRC) band to send the information to the nearest vehicles and receive information from the charging station. Moreover, DSRC band is used in many applications area such as Intelligent Transportation System (ITS), Electronic Toll Collection (ETC), Collision Avoidance, and connected vehicles. The research problem in this study is that when installing an antenna on a vehicle, it is important to have a compact size and achieve circular polarization. The research solution for the problem statement in this study is emphasized on 45? inclined slot and corner trimmed is added in rectangular patch to make the current part longer and the impedance matching better, and to get circular polarization. After that, Swiss roll structure CSRR is added in ground plane to improve bandwidth. Finally, outer SRR is added in the ground plane to improve S11. The proposed design has been validated for car-to-car (5.85-5.925 GHZ) communication.
Performance analysis of inserted resonators in microstrip array antenna for biomedical applications Man, Cing Nuam; Win, Thanda; Tun, Hla Myo; Aye, Mya Mya
Journal of Engineering Researcher and Lecturer Vol. 4 No. 1 (2025): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v4i1.177

Abstract

This paper investigates the use of inserted resonators in designing microstrip patch array antenna for biomedical applications, such as respiratory rate detection. The purpose of this study is to analyze size and placement of resonator, and slots which influence the overall performance. The antenna was constructed by connecting two single microstrip patch antennas (11.7mm × 15.7 mm×1.6 mm) on an FR4 substrate with a dielectric constant (????r = 4.4) to form (26 mm × 50mm × 1.6 mm). It achieves a miniaturized design of the expected resonance frequency with directional polarization, and provides good gain and bandwidth. The simulations were operated using FEKO software. The results and size of antenna were compared with references designs. The antenna was also designed for a 5-6 GHz frequency range, making it suitable for ISM band (Industrial, Medical, and Science) band range, low-power wireless applications, including Wi-Fi, and Bluetooth, as well as robotic systems, low-noise amplifier (LNA), 5 G applications, and WiFi 6E standard applications.
Co-Authors Aung, Chan Myae Aung, Myint Myat Aye, Mya Mya Aziz, Wildan Abdul Ei Khin, Ei Hlaing, Nway Nway Htike, Than Than Khin, Ei Ei Ko, Mg Myo Ko Man, Cing Nuam Mon, Ei Mon, Myint Myint Naing, Zaw Min Nyo, Hnin Wint War Oo, Nandar Oo, Thandar Pradhan, Devasis Putra, Randi Purnama Soe, Khaing Thandar Su Win, Naw Aye Myat Su Thar, Hla Aye Tin Swe, Hsu Myat Tin, Chau Trung Tin, Thein Aung Tun, Khin Cho Win, Khin Kyu Kyu Win, Lei Lei Yin Win, Soe Win, Thanda Wulansari, Rizky Ema Ya, Kyaw Zay Zar, Win Thu Zaw, Ko Ko