The purpose of this study was to study and compare good citizenship characteristics of undergraduate of Rajamangala University of Technology Phra Nakhon in 4 aspects: ethics social economy and politics. The undergraduates were classified by gender academic years faculties and achievement. The samples in this research were 389 undergraduates. The study participates selected by stratified random sampling and simple random sampling. The 60 item questionnaires of rating scales was used as the research instrument. Percentage mean standard deviation t - test for independent sample F – test and Scheffe’s test analysis were statistical method to analyze data. The results were as follows: 1. Good citizenship characteristics of undergraduates all aspects were in relatively high levels that ethics was the highest politics was in the lowest rank. 2. There was significant difference for good citizenship characteristics of undergraduates at the 0.05 level among undergraduates in different gender different academic years different faculties and different achievement.

The processes of rough rice milling for increase head rice yield are depending on several factors. The paddy rigidities are the one of these is effect to head rice yield. In the past research papers were showed that the qualities of milling were measuring from head rice yield and rigidities of rough rice were rerated to head rice yields. In this research aim to test the rigidities of the white rice with the bending test and showing the relation between white rice rigidities and head rice yield. The PTT1 RD41 RD31 and RD49 rice varieties were used in the experiment. The result showed that the high relation between the brown rice yield and head rice yield with determination coefficient was 0.81and the brown rice yield was heavy weight more than the head rice yield about 20%. The determination coefficient between the white rice rigidities and head rice yield was 0.16 showed that the less relation.

This paper presents a study of comparison of PWM power rectifier between 6 Pules and 12 Pules converter topology by small hydro turbine Generator (20kW) is power supply and Compare harmonics Current feed in the systems. Both converter connected Permanent Magnet Synchronous Generator (PMSG) and Voltage Regulator Control at 700 V. The control system by Decoupling Control and Conventional PI Control for control parameter PI value by Nicole-Ziegler method. Analysis for Performance of the system presented a mathematical model with Matlab/Simulink program. The result of simulation have value less than 5 percent of ripple voltage and Voltage Control continuously. Converter 12 pulse have harmonics Current value feed in the systems less than converter 6 pulse. This Case study can apply using PWM power rectifier control in future work

The purposes of this research were to 1) study attitude 2) study youngsters’ needs 3) study effects and problems and 4) study ways to prevent and solve youngsters’ online games and Internet addiction problems. The samples consisted 200 people. Tool were questionnaires and questionnaires for interviews. The statistics used in data analysis were percentage mean and standard deviation. The findings were as follows: 1.Most parents and guardians knew Online games and Internet but never used them. Most of them thought had negative effect learning and disadvantages. 2.Youths knew Online games and Internet since they were below 12 years old and they played them for 1 to 2 hours per day at internet shops. The Pb games was most played. Facebook was the website which youngsters most used. 3.Youths accepted that Online games and Internet caused expenditure of money being without friends irritability and lack of waiting behavior. They gave their opinions that youth age as well as Online games and Internet time should be limited. 4 the ways to prevent and solve problems wars as follows: Family must generate immunity for children by fostering them and providing them with quality time Teachers must support their students to do creative and enjoyable activities in various school clubs. Game Online owner must attend moral in order to have responsibility and moral consciousness of the society and Youths must have self-control and discipline must manage time limit.

This research aimed to investigate the students’ professional problems during their internship from the perception of workplace. The population was 66 informants who the sample was 43 selected by purposive quota sampling Research data were analyzed by descriptive statistics percentage mean and standard deviation and multiple regression analysis The research finding showed the findings showed that (1) the students’ fundamental proficiency problems in front office department were overall at the “Little Level”. A questionnaire 3 dimensions: the students’ fundamental proficiency core proficiency and additional proficiency problems. (2) The students’ fundamental proficiency problems in food and beverage department were overall at the “Little Level”. A questionnaire 3 dimensions: the students’ fundamental proficiency core proficiency and additional proficiency problems. (3) The students’ fundamental proficiency problems in housekeeping department were overall at the “Moderate Level”. A questionnaire 3 dimensions: the students’ fundamental proficiency core proficiency and additional proficiency problems.