The purposes of the research were to create computer assisted instruction for Electric Power System Analysis Chapter 1-2 to find out the efficiency validation of computer assisted instruction based on the standard of 90/90 and to analyse the students learning achievement after using the computer assisted instruction. The subjects in the study were 17 third-year diploma engineering students enrolling at Rajamangala University of Technology Phra Nakhon. The researcher made the experiment by having the students pretest. Then they studied by using the computer assisted instruction focused on practicing basic turning. After the students had studied and had posttest the efficiency of the computer assisted instruction was calculated as well as the learning achievement was analysed. The research result revealed that the efficiency of the computer assisted instruction was at the standard of 90 / 90. Moreover the learning achievement after using the computer assisted instruction was different at the significant level of 0.05.

We present the comparison of CDMA MAC protocol with and without beat noise by using 2-D optical CDMA MAC protocol over WDM networks. We use the asymmetric primehop sequence code. Moreover we analyse the effect of the number of available wavelengths in tenns ofaverage number of attempted to transmissions per time slot (offered load) and beat noise is considered. The presented numerical results based on the throughput and delay time versus the offered load. We divide into two parts. The first one we consider the effect of the number of available wavelengths. Another is the effect of with and without beat noise in the 2-D OCDMA over WDM systems.

The purpose of this research was to study factors affecting the motivations and study the relationship between private intrinsic motivations and extrinsic motivations for teacher occupation under the economic crisis condition. The subjects in this research were 374 graduates of the Faculty of Education from Rajabhat University and Rajamangala University of Technology in the Central Region. The instruments used in this research were questionnaires. The statistics utilized in this data analysis consists of fundamental statistics and the correlation by Pearsons Product Moment Correlation Coefficient and Chi square. The results of the research are as follows : 1. Intrinsic motivations and Extrinsic motivations for teacher ceeupation had esteem responsibilities characteristic development and growth compensation and security the necessity towards teaching profession attitudes towards teaching profession and interesting towards teaching profession were at a high level. 2. There was a significant negative relationship between the garden fathers education and motivations for teacher occupation under the economic crisis condition at the 0.05 level. There was non significant relationships between age grade point average parentail income parentail expenditure mothers education parentail occupation and motivations for teacher occupation under the economic crisis condition at the 0.05 level.

The purposes of this research were to : 1) compare creative writing achievement of students learning Thai Folk song and learning Thai Moders song as Aids ; 2) study the creative writing progress of the students in both groups by comparing between pretest scores and posttest scores ; find creative writing means scores and standanrd deviation of two student groups and find the percentages of the affective means scores and psychomotor means scores of the both groups. Samples were 62 students at the first level of Bachelor Degree from two classrooms : 31 students of each at Rajamangala University of Technology during 2008 academic year. The basis on Using Thai Language One mean scores of two student groups were not significantly different at th .05 level. The students were equally divided into two experimental groups. The first group learned Thai Folk song as aids while the second group learned Thai Modern song as aids. The research tools consisted of creative writing pretests and posttests instruments for development creative writing and creative writing lesson plans. The procedures were as following. Firstly the creative writing achievement tests were administered to both groups of students as pretests. Secondly sixteen creative writing lesson plans learning Thai Folk song as aids were given to the first experimental group while another sixteen creative writing lesson plans learning Thai Modern song as aids were given to the second experimental group. Finally the creative writing achievement tests which were similar to the pretests were administered to both groups as posttests. The results were as following. I) The creative writing achievement ofstudents learning Thai Folk song and leaming Thai Modem SOlg as aids was not significantly different at the .05 level. 2) The mean scores of two student groups between pretests and posttests were significantly different at the .05 level. The posttest mean scores of both groups were higher than the pretest mean scores. 3) The averages of mean scores and standard deviations of students learning Thai Folk song as aids were 15.31 and 2.80 and another experimental group learning Thai Modem song as aids were 15.63 and 3.18 4) The percentages of the affective mean scores and psychomotor mean scores of students learning Thai Folk song as aids were 87.64 and 87.22 and another group learning Thai Modem song were 87.18 and 86.01 respectively.

The purpose of this study was to compare undergraduate students reading writing performance and interest in learning English through reading instruction with and without computer in PowerPoint Program at Rajamangala University of Technology Phra Nakhon Bangkok Commercial Campus. The subjects for this study consisted of 80 undergraduate students in the first semester of the 2005 academic year of Rajamangala University of Technology Phra Nakhon Bangkok Commercial Campus. They were selected by using simple random sampling and divided into the experimental and control groups with 40 students in each. The randomized control group pretest -posttest design was used in the experiment. The experimental group was taught through the method in the reading instruction with computer in PowerPoint Program whereas the control group was taught through the method in the reading instruction without computer in PowerPoint Program. Each group was taught with lessons of the same content for sixteen 150 minute periods. The instruments used in the study were English reading writing performance tests and interest in learning English. The t-test for independent samples score was statistically used for data analysis. The results of the study indicated that: 1. The English reading performance between the experimental and control groups was significantly different at the .05 level. 2. The English writing performance between the experimental and control groups was not statistically significant. 3. The interest in learning English between the experimental and control groups was significantly different at the .05 level.