The objectives of this research are to propose a linear mixed model including spatial effects to present the distribution of air pollution of each gas being Sulphur dioxide (SO2) Nitrogen dioxide (NO2) Carbon monoxide (CO) and Ozone (O3) and particulate matter (PM10) and to investigate the factors related to those air pollution in each area of Bangkok Metropolitan Region. The spatial effects are assumed to be a conditional autoregressive (CAR) model. The dependent variables are the amount of SO2 NO2 CO O3 and PM10 in each area and the independents considered are Industrial area business area and suburb area. The results indicate that the factors influencing the amount of air pollution ranking from most to least are industrial area suburb area and business area respectively.

The research project investigated the effects of CoO additive on dielectric ferroelectric physical and mechanical properties of modified Bi0.5(Na0.81K0.19)0.5TiO3 ceramics were investigated. The samples were synthesized by solid state reaction technique where powders were calcined at 850 °C for 4 h and ceramics were sintered at 1050 °C for 4 h which difference heating rate controlled i.e. 100 300 and 600 °C/h for. The ceramics of BNKT/x wt.% CoO was added CoO by various x=0.00 0.10 0.20 0.30 0.60 and 0.90. Phase formation was determined by X-ray diffraction technique (XRD). The X-ray diffraction analysis of the ceramics suggests that all samples exhibited a perovskite structure. The dielectric properties under room temperature and various temperatures were also determined. Dielectric measurement data showed that the additive and heating rate controlled influenced dielectric constant and dielectric loss. Furthermore the hysteresis loop behaviors slightly changed with increasing the CoO contents.

The purposes of this research were 1.) to study of expectation and reality for Development of research on Academic Staffs of RMUTP 2.) to study of needs assessment for Development of research on Academic Staffs of RMUTP. The sample is Academic Staffs of RMUTP from 9 faculty 343 Academic Staffs. The data were analyzed through percentage (%) mean (x̄) standard deviation (S.D) t-test modified priority needs index: PNI modified and content analysis.The results demonstrated that : Current conditions and expectations regarding the development and research of academic staff found current weather conditions are on average lower than expected nearly all sides. Considering the sort of requirements necessary for the development of research staff academic overview. The PNIModified between 0.04 -0.22 and found to have the highest PNIModified is The development of self-education and self-improvement with training / seminars (0.22) for a final order management (0.04).

The purposes of this research were to development of full-text research database for Rajamangala University of Technology Phra Nakhon and valuate the efficiency of the database system of full-text research database for Rajamangala University of Technology Phra Nakhon. The sample was academic staffs of RMUTP 35 academic staffs. Research design was a research and development follow these steps : study and analyze problems system design development system trial and evaluation of user satisfaction. For the study satisfaction using the evaluation form. The statistics used for data analysis were mean (𝑥̅) and standard deviation (S.D) The results demonstrated that : 1. Development of Full-Text Research Database for Rajamangala University of Technology Phra Nakhon by using database management software MySQL (MySQL) and PHP (PHP). The database developed has the ability to save edit delete and query. 2. Database System of Full-Text Research Database for Rajamangala University of Technology Phra Nakhon performance was good and the mean was 4.22 and the standard deviation was 0.19.

The purpose of this research was to 1) study the students leisure time. 2) study the learning patterns of the students of the Faculty of Industrial Education. And 3) find out the relationship between leisure time and learning styles of the students of the Faculty of Industrial Education Rajamangala University of Technology Phra Nakhon. The samples of this research were Faculty of Industrial Education 245 students Rajamangala University of Technology Phra Nakhon were sampled stratified by stratified random sampling. Tools used in this research were questionnaire about the leisure time habits and the learning patterns of the students. The results of the research were; firsty the study of students leisure time behavior. Rajamangala University of Technology Phra Nakhon showed that the leisure time of students The overall score was moderate.The students leisure time is the interaction activity followed by the leisure activity. Learning Activities and health activities. Secondly results of learning models showed that learning styles of students of Faculty of Industrial Education Rajamangala University of Technology Phra Nakhon At the mean level. it was found that there were 6 mean scores in the mean. The first was the collaborative learning model. Independent competitive and avoided. Finally Results of the relationship between leisure time and learning styles of students in Faculty of Industrial Education found that the behavior of leisure time in learning activities. Leisure activities There was a statistically significant positive correlation between the learning activities and the six learning styles at the .05 and .0.01 levels. There are positive relationships only with participatory learning models. At the .01 level of significance.