This research aimed to transfer technology about biogas digester construction and applying the biogas in household to teachers and students in Suksasongkhro Tak school. They were instructed and trained about biogas digester construction and applying the biogas produced from animal manure on cooking in household to reduce using LPG. The research operations were separated to 4 phases. The first was preparation and making understanding. The second was instruction and practical training. The third was monitoring and project evaluation. The last one was organizing the science project event. The number of participant teachers and students was 330. From the result of 5 scale questionnaire in project evaluation it was found that the evaluation about knowledge and understanding showed the maximum scale ( = 4.42 SD = 0.84). The second was about location duration and food ( = 4.36 SD = 0.75). The evaluation about the knowledge showed the lowest scale ( = 4.28 SD = 0.77). For the project evaluation of success it was found that every biogas digester done by participants could produce the biogas and it could be use to replace LPG and reduce expenditure about 1400 – 1500 baht/month. The total construction cost of biogas production system was 58000 baht. So the payback period was 3.22 years.

The objective of this paper was study guidelines for taxation to promote the use of energy efficient passenger cars. The passenger car taxation of 4 developed countries; namely Japan Germany United Kingdom (UK) and United States (US) were analyzed and compared with Thai taxation. And studied barriers for promote the use of energy efficient passenger cars in Thailand. This survey conducted by using the close-ended questionnaires collecting data from 400 people who used passenger cars in Bangkok. The results found that tax on acquisition in the developed countries were only subjected to sales tax while Thailand’s acquisition tax composed of customs duty excise duty municipal tax and value added tax. The ownership tax rates of passenger cars in Japan Germany and UK were based on different fuel consumption parameters such as cylinder capacity vehicle weight and CO2 emissions which can promote energy efficient cars. On the contrary the ownership tax rate of USA and Thailand reduces with the age of vehicle. Fuel tax was imposed to support the country energy policy. Opinion survey results of barriers for promoting energy efficient passenger cars in Thailand showed that the significant problems were the lack of incentives measures to promote the use of energy efficient cars.

The objectives of this research were 1) to study the environment of cooperative education of the Faculty of Science and Technology Rajamangala University of Technology Phra Nakorn and 2) to study the achievement of this cooperative education project towards the development of graduates competency in the first semester of academic year 2012. The research methodology consisted of 2 stages. The first was to study the environment of the cooperative education from both data sources of printed and electronic by comparing their content to the standard of Thai Association for Cooperative Education. The second was to study the achievement of this cooperative education project towards the development of graduates competency by using questionnaires to survey opinions of all stakeholders in this project of the Faculty of Science and Technology Rajamangala University of Technology Phra Nakorn. Three sampling groups were from educational institutes enterprises and students. The number was 211 in total. Analyses applied included social statistics particularly descriptive statistics which were number percentage mean and standard deviation. The most important findings are as follows: 1. With regard to the study the environment of cooperative education of the Faculty of Science and Technology Rajamangala University of Technology Phra Nakorn it was found that it covered all 4 standards of Thai Association for Cooperative Education; that is 1) curriculum of cooperative education 2) supervision of cooperative education 3) students of cooperative education and 4) assessment and evaluation of cooperative education. 2. The study of stakeholders to the achievement of cooperative education of the Faculty of Science and Technology Rajamangala University of Technology Phra Nakorn shows that 1) educational institutes had a very positive attitude 2) enterprises an average attitude and 3) students a very positive attitude. The obstacle affecting the achievement of cooperative education of the Faculty of Science and Technology Rajamangala University of Technology Phra Nakorn was that the university did not have the central to fully manage and support cooperative education for all aspects such as resources learning space supplies human resources and most importantly IT managing system. Also there were problems with correct knowledge towards cooperative education of enterprises and that students did not receive any payment

The objective of this research is to construct the appropriate forecasting model for the export quantity of concentrated latex by the three time series analysis methods which are Box-Jenkins method Winters’ multiplicative exponential smoothing method and combined forecasting method. Time series data from the website of Office of Agricultural Economics during January 1998 to February 2014 (194 values) are used and divided into two series. The first 182 values from January 1998 until February 2013 for the models prediction and the last 12 values from March 2013 until February 2014 for comparison the performance of forecasting models via the criterion of the lowest root mean squared error and the criterion of the highest correlation coefficient between existing values and forecasted values. Research findings indicated that for all forecasting methods that have been studied the most powerful method is the combined forecasting and the forecasting model is where and represent the single forecasts at time t from Box-Jenkins method and Winters’ multiplicative exponential smoothing method respectively.