Research Publications

Academic theses and dissertations are regularly published and widely disseminated in YUOE Journal, Monographs, Universities Research Journal (URJ), Myanmar Academy of Arts and Science (MAAS) Journal, AsTEN Research Journal and International online Journals for sharing knowledge and contributing to the development of our education.

Myanmar Academy of Art & Science List of Research

No. Researcher Title Abstract Year
1581 Mi Yin Sa Nine PROTOTYPE HARDWARE DESIGN AND SOFTWARE DEVELOPMENT OF PASSWORD CODED ESP32 WEB SERVER BASED HOME APPLIANCES CONTROLLING SYSTEM ACCESSIBLE FROM ANYWHERE USING NGROK SOFTWARE Web server based appliances controlling system is mostly built up by using any microcontroller and Wi-Fi or Bluetooth module. The system can control appliances in the coverage range of Wi-Fi or Bluetooth, not from anywhere. To solve this, the controlling system which is accessible from anywhere with internet access is built up by using ESP32 and ngrok software. ESP 32 is connected to the local network and IP address is obtained. This IP is inserted to the terminal window of ngrok software and a uniform resources locator (URL) is obtained. For security purposes, the password coded program is developed by using “base64encode” software. Using this URL and password, the home appliances are monitored and controlled from anywhere with internet access in the world. The web server home page is created with HTML (hypertext markup language) and CSS (cascading style sheets) to control the devices as well as to express the current status of home appliances. The communication between a web server and clients takes place via Hypertext Transfer Protocol (HTTP). This system is useful to monitor the status of home appliances and to control the switch “on “and “off” of the devices from anywhere with internet access. 2021
1582 Zin Min Myat MICROWAVE-ASSISTED GREEN SYNTHESIS AND CHARACTERIZATION OF TITANIUM OXIDE NANOPARTICLES USING CENTELLA ASIATICA (L.) LEAF EXTRACT AND THEIR ANTIMICROBIAL ACTIVITY Green synthesis of titanium oxide (TiO2) nanoparticles was successfully developed by using Centella asiatica leaf extract. Metal oxide nanoparticles have a high specific surface area and a high fraction of surface atoms. Titanium oxide nanoparticles have unique properties as a consequence of this size, distribution and morphology and are a very important component in the rapidly developing fields of nanotechnology. In this research, titanium oxide nanoparticles with leaf extract percent were characterized by instrumental analysis such as X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR) and UV-Vis Spectroscopy. Generated titanium oxide nanoparticles were investigated different degree of antimicrobial activity against micro-organisms and it was observed that the zone of inhibition whose diameters were estimated. This research can provide useful and comprehensive results because of their main physicochemical properties and some of their medical applications. 2021
1583 Zayar Pyae Phyo Aung DESIGN AND ASSEMBLING OF SIMPLE HOMEMADE ELECTROSPINNING DEVICE FOR NANOFIBERS PRODUCTION A high technology is required in the production of nanofibers by electrospinning technique. This paper presents the work to implement design of the novel low-cost electrospinning system with inexpensive components. This home-made electrospinning device composed of three main components. They are Zero Voltage Switching (ZVS) flyback converter based home-made adjustable high-voltage power supply, stepper motor based homemade automatic injection pump and metallic collector plate. After a brief explanation to build the device using unexpansive components, the production zinc oxide (ZnO) nanofiber using low-cost homemade electrospinning device. The zinc oxide (ZnO) nanofibers were prepared from znic acetate and poly vinyl alcohol (PVA). The fibers were deposited onto the aluminum substrate and calcined for 1 h at 600 ?C. The properties of ZnO nanofibers were characterized by X-ray diffractometer (XRD) and field emission scanning electron microscope (FESEM). 2021
1584 Hnin Aye Khine GMAIL NOTIFICATION WITH PHOTOGRAPH FROM MOTION ACTIVATED CAMERA USING ESP32_ CAM AND MICROWAVE MOTION SENSOR FOR SECURITY PURPOSE Microwave motion sensor HW MS03 utilizes the Doppler shift phenomenon due to the relative motion. The sensor detects the slight movement and it triggers the microprocessor to operate the various functions. In this research, microwave motion sensor detects the motion of object and then it sends the digital signal to the microprocessor. The capturing the photograph and the Gmail with photograph sending to the specified address are implemented by microprocessor. ESP32_CAM is the microcontroller which is attached with OV2640 camera module, Wi-Fi and dual mode Bluetooth. It is reliably suitable to detect the trigger signal from microwave motion sensor, to capture the photograph and to connect the internet via Wi-Fi for sending the email. By using deep sleep mode which is one of the special features of ESP32_CAM, the energy consumption is reduced. After implementation of all functions, the processors and digital peripherals connection are in sleep mode until the next motion signal is detected. This system can be used in security monitoring, intelligent home appliances control system due to low energy consumption, cost effective system and reliable operation. 2021
1585 Aung Zaw Myint DESIGN AND CONSTRUCTION OF FREQUENCY, INDUCTANCE LOGICAL CONDITION, CIRCUIT CONTINUITY AND CURRENT DATA ACQUISITION SYSTEM In the present work, data acquisition system is designed to measure frequency, inductance, current, digital logic condition and circuit continuity. The system is constructed using an Arduino mega 2560 development board, resistors, capacitors, comparator, and various sensors. The respective sensors sensed physical phenomenon and sent electrical signal to Arduino ATmega2560 microcontroller. The measuring results data are displayed on the LCD, stored in micro SD card and logged in excel sheet directly using the parallax data acquisition (PLX-DAQ) as the same time. The system is innovatively designed to measure five different types of physical quantities. 2021
1586 Zin Mar Aung PREPARATION AND CHARACTERIZATION OF KAOLINITE CLAY FOR PRODUCTION OF NATURAL POZZOLAN Kaolinite clay has been modified with thermal treatment for application as pozzolanic material in cement. The thermal analysis of kaolinite has been characterized by using Thermogravimetric/ Differential Thermal Analysis (TG/DTA). In the result of TG-DTA, the endothermic peak (dehydroxylation temperature) has been observed at 542.95ºC. Kaolinite clay has been heat-treated at three different temperatures; 600 ºC, 700 ºC, and 800 ºC for two hours duration each. The phase analysis of kaolinite samples has been analysed by using X-ray Diffraction technique (XRD). The pozzolanic activity of metakaolinite samples has been revealed by strength activity index (SAI). Finally, the elemental content of the resultant metakaolinite sample has been analysed by Energy Dispersive X-ray Fluorescence (EDXRF). The XRD result has revealed that the original crystalline microstructure of kaolinite has transformed into an amorphous one after thermal treatment. According to EDXRF analysis, it has been found that kaolinite clay is suitable to be used as cement replacement. Based on the XRD and SAI test results obtained, it is revealed that metakaolinite produced from the treated temperature at 700 ºC for 2 hours was adopted as pozzolanic material for natural pozzolan production. 2021
1587 Zin Min Tun PHYSICOCHEMICAL CHARACTERISTICS OF ACTIVATED CARBON FROM RICE HUSK BIOCHAR Rice husk is an agricultural waste abundantly available in rice-producing countries. In this work, biochar is a solid material that is produced by heat decomposition of rice husk biomass by wellknown pyrolysis method. Activated carbon was prepared by the conventional carbonization and KOH activation on a laboratory scale. The sample was calcined at 200 °C, 300 °C and 400 °C for 2 h to obtain biochar. The carbon structure of rice husk biochar activated carbon was examined by XRD. The chemical properties of the rice husk biochar activated carbon were confirmed by FTIR. The morphology of rice husk biochar activated carbon was determined by SEM. From FTIR analysis, three functional groups were found. According to SEM results, the average pore sizes of the samples were found to be about 6.15 ?m at 200 °C, 5.80 ?m at 300 °C and 4.13 ?m at 400 °C respectively. 2021
1588 Kyaw Thu TEMPERATURE AND SHADING DEPENDENCE OF THE POTENTIAL INDUCED DEGRADATION EFFECT OF SOLAR PANEL This paper investigates on a simulation model for a PV panel to allow estimate the electrical behavior of the panel with respect changes on parameters of shade and temperature. The simulation model was implemented in Mat lab and accepted the I-V characteristic outputs as variable parameters the effects of shading and temperature of solar PV module. This model is quite and especially useful to analyze the performances of the PV modules under various operating conditions. It is simulating the parameters for the nonlinear I-V equations based on only the solar panel such as open circuit voltage, short circuit current, voltage and current at maximum power point at the standard test condition which are obtained from manufacturer’s solar panel. The performance of PV panels is affected by the shading and temperature effect due to trees, passing of clouds, neighboring buildings. The aim of this research work is to use the change in electrical parameters with shading and temperature of PV solar cell and module. The simulation results show that the electrical parameter such as the open circuit voltage, short circuit, maximum power decreases as the shading and the ambient temperature increases. 2021
1589 Aye Aye Myint TRACE ELEMENTS ANALYSIS OF SEDIMENT IN DOTHTAWADY RIVER FROM MANDALAY REGION In this paper, Dothtawady River Sediments samples 1(RS-1), River Sediments sample 2(RS-2), River Sediments sample 3 (RS-3) and River Sediments sample 4 (RS-4) were collected from Mandalay region and analyzed to determine the elemental concentration by using Energy dispersive x-rays fluorescence (EDXRF) analysis. It was found that there are 14 element oxides such as Al2O3, SiO2, Fe2O3, SO3, K2O, CaO, TiO2, Cr2O3, MnO, Fe2O3, CuO, ZnO, SrO, ZrO2 in the three River Sediment samples, the value of pH and conductivity were also measured. These result values were compared and discussed. 2021
1590 Saine Lai Wai INVESTIGATION OF RADIONUCLIDE CONCENTRATION IN SOIL SAMPLES COLLECTED FROM MINHLA COAL MINE REGION The aim of this research work is to investigate the radionuclides and calculate the activities of the collected samples from Kan Toke coal mine areas, Minhla Township, Magway Region. The radionuclide concentrations in soil samples were examined by using NaI (Tl) gamma ray spectrometry. There are four soil samples. From the analysis of the obtained spectra, peaks of 212Pb (77.11 keV), 212Pb (238.63 keV), 228Ac (338.32 keV), 208Tl (583.19 keV), 208Tl (860.56 keV), 214Bi (1120.3 keV) and 40K (1461 keV) were found. It is also found that the observed radionuclides except 40K (1461 keV) are the decay products of 238U and 232Th natural radioactive series. The concentrations of these radionuclides were determined by Gamma Vision 32 software. The highest activity of 212Pb (77.11 keV) was found in soil sample 1. The highest activity of 212Pb (238.63 keV) was found in soil sample 3. The highest activity of 228Ac (338.32 keV) was found in soil sample 3. The highest activity of 208Tl (583.19 keV) was found in soil sample 3. The highest activity of 208Tl (860.56 keV) was found in soil sample 1. The highest activity of 214Bi (1120.3 keV) was found in soil sample 1. The highest activity of 40K (1461 keV) was found in soil sample 4. The concentrations of radionuclides contained in Kan Toke coal mine areas are not very high compared with IAEA standard, the samples have very small amount of radionuclides. 2021