Four Junction Traffic Light Controller using PLC (S7-200)

Advance of a road traffic light control system using Programmable Logic Controller is the principal of the system. This system can be divided into two parts which are hardware and software. The hardware part for this system is a model of four -way junction of a traffic light. The Red, Yellow and Green are installed at each lane to represent as a traffic light signal indicator. This switches and lamps are linked to PLC. The PLC receives signal which is coming from the inputs (sensor and switch) and drives the units (lamps or relays). In the system, Siemens s7-200 PLC is used as the main controller of the traffic light system. The Step7 Micro Win software can be developed the ladder logic diagram which can control the traffic light for proposed system. So, the traffic light system can be successfully controlled by PLC

Software implementation of Iris recognition System using Wavelet transformation

This paper describes the software implementation of Iris Recognition System using Wavelet Transformation. This system intends to apply for high security required areas. The demand on security is increasing greatly in these years and biometric recognition gradually becomes a hot field of research. Iris recognition is a new branch of biometric recognition, which is regarded as the most stable, safe and accurate biometric recognition method. In this paper, the image data base is created by inputting the digital photos via MATLAB program. Image processing tool box and Wavelet transformation tool box are mainly applied to implement the system. Edge detection, Image localization, HAAR Wavelet transformation and Hamming Distance are mainly applied. Finally the accuracy of Iris recognition system is tested and evaluated with different Iris images

Alcohol Consumption and Current Situation of Drinking Risk Level Among University Students in Mandalay Region

Background: In Myanmar, alcohol consumption among university students had been recognized as a major public health concern. A cross-sectional study was done to investigate drinking alcohol and risk level assessment using the Alcohol Use Disorder Identification Test (AUDIT) and examined the reasons of alcohol uses and types of beverage preference consumed. Methods: The two universities from three districts in Mandalay region were randomly selected, from which 976 students (stratified by academic year and sex) were contributed in self-administered questionnaire. Results: The mean age at first drinking alcohol among the participants was 16.36_0.15 years with range of 16 to 19 years. The drinking risk level assessment using the AUDIT test, nearly half of the participants 48.7% were abstainers and 86 (8.8%) were high risk drinkers while 28 (2.9%) had alcohol dependency. Among those, 57.8% had experiences of alcohol drinking and the favorite beverage of the university students who drink alcohol was beer. Binary logistic regression analysis indicated that gender, smoking habit and living situation for drinking were significant predictors of alcohol consumption among university students. The results found out that living separately with parents and smoking habits were important factors for drinking alcohol with statistically significant at 95% confidence level. Conclusion: It provided evidence-based findings for knowing the alcohol consumption risk level among university students to prevent social deprivation and health risk behaviors. Findings from this study indicate a need for law governing, strictly prohibits the sale of alcohol directly or indirectly to those under the age of eighteen years. The alcohol intervention program can be helpful in modifying behaviors change communication in health promotion of university students. Keywords: Alcohol consumption, AUDIT test, drinking risk level, university students and binary logistic regression Received: 12 April 2019 Reviewed: 18 June 2019 Revised: 25 June 2019 Accepted: 8 July 2019 DOI: 10.35898/ghmj-3358

Analysis of OFDM simulation for CDMA wireless communication system

This paper investigates the effectiveness of Orthogonal Frequency Division Multiplexing (OFDM) as a modulation technique for wireless radio applications. The main aim was to assess the suitability of OFDM as a modulation technique for a fixed wireless phone system for rural areas of Myanmar. The performance of OFDM was assessed by using computer simulations performed using MATLAB. Most third generation mobile phone systems are proposing to use Code Division Multiple Access (CDMA) as their modulation technique. For this reason, CDMA was also investigated so that the performance of CDMA could be compared with OFDM. OFDM was found to have total immunity to multipath delay spread provided the reflection time is less than the guard period used in the OFDM signal. The performance of the OFDM signal was found to be the same as for a single carrier system, using the same modulation technique