This paper presents the input power factor control of a modulation using a carrier-based dipolar for matrix converters by determining the optimum value of free parameters b and d in general solutions of the modulation matrix. The proposed PWM method is not only less complicated but can clearly show the coupling of the input power factor control from both active and reactive output power. The experimental results show that the proposed PWM method can control the conditioned input power factor set earlier

Machine Physical Therapy Cervical Spondylossis to create a pull back and pull the neck up of Machine Physical Therapy Cervical Spondylossis. There are two parts for the conventional system: the neck and the back but the neck was individual used. Moreover the resolution was not convenient to set as desired and it was also very expensive. In addition it was difficult to service and maintain. To solve these problems: this study was to implement a microcontroller to control the computer function in command 0-30 minutes and 2 mode operations. It was continue pulled and un-continue pulled from 0-60 seconds. It was found that this study saved the cost of buying back and higher efficientcy. The evaluation results conducted show the satisfaction level of 4 which means ‘good’

The study. Utilization coconut fiber added in Kha Nom Tong Muan. Aims to study the amount of coconut fiber in the production of Kha Nom Tong Muan .The total amount of coconut fiber production level of 3% as the best recipe Kha Nom Tong Muan. Recognized in terms of appearance color sweet taste crispness overall liking by a mean of 8.20 8.03 8.06 8.20 and 8.16 order. The differences were statistically significant (p ? 0.05). Shelf life of coconut fiber added Thong Muan at 5 weeks Kha Nom Tong Muan packed in a Freud bag and then put the paper kept at room temperature. The random quality checks every week. This suggests that coconut fiber in Kha Nom Tong Muan products is safe for the consumer. And to study the consumer acceptance of food products with coconut fiber added in Kha Nom Tong Muan. Questionnaires were used of 100 consumers who were accidental. The satisfaction of the Kha Nom Tong Muanproducts Appearance. Sweet taste coconut fiber smell crispness and feel left behind. The analysis of coconut fiber added in Kha Nom Tong Muan filled has satisfaction level in this medium to get 71 percent.

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.

The research is conducted how to learning and to play chess by making program Computer Assisted Instruction (CAI) to delivery of learning materials and documentation to 1000 schools in area responsible of the Office of The Basic of Education to stimulating activities and learning Thai chess. Exploring the need of young chess players the researcher gathering information by using questionnaire. The quantitative research based on a population sample. The third of the popularity are young people aged between 7-12 years youth aged 12-18 years and young people aged more than 18 to 22 years. The results showed that schools in the north to meet the highest rate of 87.18 percent compared to young chess players do in Thailand mostly young men. The 71.75 percent of the youth in learning to play Thai chess through the ages between 7-12 years old 36.00 percent were in elementary school. The 39.25 percent of the most experienced and know to play is 58.00 percent. The recommendation and comment on the online chess the average levels of good. The people who had experience after playing online chess score average level of very good. Which indicates that playing thaichess through learning this research has been used to do chess players and much wider. Improve playing skills. Be the number of ideas and Thailand culture in the young group of players.