During the daytime solar cells can be used in terms of meteorology because the variations of the current obtained from solar cells are associated with changes in daily climate. The case study of the comparison between the surface temperature and the different current (Ipv_d) obtained from the solar cells in the periods of November 2011 to February 2012 which known as the winter period of Thailand had been conducted. The result showed that it was possible to observe the decreased surface temperature at the time that the increased Ipv_d was more than 6000 mA. Vice versa the decreased surface temperature would not be observed when the Ipv_d was below 6000 mA. The decreased surface temperature may reflect the influence of the traveling high pressure area moving to cover and collide with the steady-low pressure area at the study area. The result of the collision caused extensive cloud cover resulting in increasing Ipv_d.

The purposes of this research were 1) to construct and evaluate the efficiency of the Computer Assisted Instruction (CAI) on Nuclear Physics class to have 80:80 effectiveness standards. 2) to compare learning achievement between pre-test and post-test scores after using the CAI 3) to study student’s opinion about CAI. Samples were the second year of Science and Technology students of the Rajamangala University of Technology Thanyaburi in 2011 academic year selected by simple random sampling. The first test was done by one-to-one evaluation and the second one by a small group in order to revise the CAI before implementing within the subject. The efficiency of the CAI was evaluated by experts both in content and production technique of the courseware. The results of this research were shown : 1) the CAI on Nuclear Physics contained the effectiveness at 87.00:85.33 which was higher than the standard criterion set (80:80) 2) the comparison between pre-test and post-test was found that the post-test score of students who studies with CAI were significantly higher than the pre-test score at .05 level and 3) the mean score of the student’s opinion about CAI was 4.35 shown that most of them satisfied the CAI on Nuclear Physics at good level.