The sensitivity analysis in efficiency of solar water heater system self-circulated by a stream power was performed in this study. The mathematical model of the system was developed based on the experimental results to predict the available amount of water pumped temperature and pressure in main devices. This system was operated by using a simple flat plate solar collector with an exposed area of 1.58 m2 and a storage tank of 30 liters. The results of systematic performance which performed by math model was compared to the experimental results. It was found that the values of were 5.876% 3.583% and 1.361% for vapor pressure and temperature in the flat plate solar collector and temperature in the storage tank respectively. The system was workable when the solar energy input values were equal to or greater than 584 W/m2 607 W/m2 632 W/m2 and 662 W/m2 for discharge head 1 m 1.5 m 2 m and 2.5 m respectively. From system simulation the system could have the daily average thermal efficiency was between 2.94 – 11.47% and the daily average pump efficiency 0.00057 – 0.0026% depending on the intensity of incident solar radiation and the discharge head of the system.

This research collects detail of rooms and building located in Thewest Center Bangkok Commercial Center North Bangkok Center and Chotiwet Center of Rajamangala University of Technology Phra Nakhon. Collecting classroom usage by student such as number of student time consumed and room scheduled from the Registrar system. Collecting business room usage by staff and administrator emphasis on evaluated classroom utilization of fulltime student who register in the first semester and the second semester of academic year 2556 study time between 8.00-12.00 am. and 13.00-16.00 pm. on weekday according to MOE standard.

The objectives of this research is to study and evaluate knowledge base level of RMUTP students regarding information of ASEAN Community and to study their readiness to approach into ASEAN labor markets by doing the random sampling of 386 RMUTP students all-year levels from 9 faculties who are studying bachelor degree. Tools for collecting data are questionnaires on basic knowledge of ASEAN Community and readiness of RMUTP students towards ASEAN Labor Markets by choosing one answer from multiple choices with 5 rating scales. Analyzing data by using readymade computer program SPSS for statistic percentile standard deviation t-test f-test. All test statistics is statistically significant at 0.05 level. The results can be summarized as follows.

The article presents a study of virtual learning environment in creative education to develop creative thinking skills. The paper states concepts and principles of creative education creative thinking creative thinking process and learning theory for creative thinking. The virtual learning environment in creative education included arrangement of learning in asynchronous synchronous and collaborative condition which composed of knowledge environment media and tools environment friendly environment and individual environment. The arrangement was based on conceptual framework of creative education for the 21st century in order to develop creative thinking for lifelong learning.

The objectives of this research were to study and compare factors affecting dropping out of undergraduates in Rajamangala University of Technology Phra Nakhon. The finding on four types of factors were launched : personal educational institute family and social factor. Survey research methodology was exploited by distributing questionnaires to sample group of 638 RMUTP undergraduates in 2012 academic year. And the data was analyzed by the percentage the standard deviation the t-test and one way analysis of variance (ANOVA). The results were as followed : the personal factor as a whole was at low level they were : insufficient background knowledge in their fields capability in passing the examination getting low grade point average learning without planning boring of learning facing financial problem negative attitude in vocational field learning in dislike branch absence in class and having problems on family responsibility. On the institute factors as a whole it was at moderate level the causes were: inadequate facilities and services of the institute personal safety learning without instruments lack of helpfulness for the handicapped institute’s strict discipline inappropriate laboratory and buildings the executive management’s transparency institute’s relations with students unsuitable activities for learning expensive fee the students’ entrance without admission system overloaded extracurricular activities. On the family factor it was at low level as a whole they were : economics problems the family’s poverty parents’ attitude towards the institute single-mom’s burdens stability of parents career. Finally the social factor as a whole it was at low level they were : distance from students’ home the freshmen’s traditions self( 4) adjustment among peer group improperly learning environment quarrels and conflicts with others and freshmen’s assimilation in new surroundings. By comparing personal factors to family factors the study found that all factors were nonsignificantly different at the level of 0.05. While the institute factors and the social factors were significant different at the level 0.05