The purpose of this research was to construct experimental learning kit on sound velocity finding by resonance method in order to use for a material in Physics Laboratory I. The instruments used in this study included : 1) an experimental learning kit on sound velocity finding by resonance method with the experimental manual and the record forms 2) the pre-studying and the post-studying forms and 3) the questionnaires about students satisfaction in using the kit. The samples consisted of 32 first year students studying in the faculty of Engineering and Architecture. The results showed that the post-test have the higher significant than the pre-test score at level of 0.05. It was found that the sound velocity from both the theoretical and the experimental framework did not significantly different at the level of 0.05. The end correction by experiment higher significant than by calculation at level of 0.01 and students were highly satisfied in using the invented kit.

The purposes of this study were to compare the progress in Thai enunciation skill of students at Rajamangala University of Technology Rattanakosin Wangklaikangwon Campus before and after using electronic medias and to find out freshmen’s attitude toward using electronic medias to develop Thai enunciation skill . The sample was 40 freshmen of Rajamangala University of Technology Rattanakosin and taking Thai for communication course in the first semester of the 2011 academic year. The study was carried out for 1 month by learning plan with the teacher before practicing unlimited time by themselves with the electronic medias 10 times with researcher consultation. The research instruments were 1) the electronic medias to develop Thai enunciation skill 2) the pre-test and post-test of reading 3) attitude questionnaire. The data were statistically analyzed using percentage by formula E1/ E2 and t-test The results of the study revealed that the Electronic Medias average percent effective E1/E2 is 80.15/88.90 after using E–learning the progress in Thai enunciation skill of the freshmen increased at the .05 level of significance and the freshmen’s attitude towards using electronic medias to develop Thai enunciation skill was very good.

The study noise pollutions at Wongsawang intersection and Rama VII intersection. According Pollution Control Department (PCD) methods. General sound level measurement used for this research and calculate the Leq24br Using the 5-day measurement period. For the result. The Sound level at Wongsawang intersection were exceeding the standard 70 dBA every day. The peak of Leq24br was 80.9 dBA. According the result of PCD. The Sound level at Rama VII intersection were exceeding 2days. Traffic density was a factor that affects the sound level. In addition the maximum sound level (Lmax) of all the measurements were not exceed 115 dBA

The purpose of this study. To create sound books for the blind to the blind students have learned. Listened to sound books. The knowledge about the course to determine the efficiency of computer technology and satisfaction. Of sound books. Record management by preparing a division title a body of knowledge topics. And explanations of exercises or reading record sheets for each of the slides were not reading books documents will continue throughout. Daisy produced using data recorded on a VCD disc audio and text content knowledge displayed simultaneously and then applied to the sample. The elementary school years 4-6 After data collection ended. Teaching with the query. By a separate data reading. Reading divided by topics into each side. Students listen to the blind. A total of 38 data sets representing 84.44 per cent from the number of students and 45 students. The study found that creating audio books for the blind to blind students. Satisfaction levels in the average level of 4.15 and very good audio books build knowledge about the course of computer technology for blind people. Their knowledge of academic Ability to form and practice and performance satisfaction.