Biodiesel is an interesting alternative fuel which is supported in accordance with Thailand alternative energy plan because it positively affects the environment and economic system. Biodiesel B20 is operated in a 10,450-cc fishery engine in this research. The result is compared to that of biodiesel B5. The main objective of this research is to compare the output torques from both fuels by using the conventional technique (the comparison of the average values) and presents a new comparison technique by applying linear regression equations. Both techniques report the differences of -7.54% and -7.22%, respectively. The analysis can be concluded that both techniques are possible for further analysis. However, the new approach is more flexible and accurate, which leads to the reduction of experimentation in future research. The details of the calculation are also presented in the paper.

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The entrance of foreign retail and wholesale businesses in Thailand started some ten years ago and led to the closure of many Thai wholesale stores. The objective of this study is to determine the needs of Thai wholesalers in the Nonthaburi area and to identify suitable strategies for relevant managers to be able to compete with contemporary commercial strategies of the foreign enterprises. A total of 114 of the 120 Thai traditional wholesale stores in Nonthaburi were surveyed by questionnaire and results were analyzed by statistical means. It was found that low price strategy, location of store and full cycle service strategies were the principal approaches employed by the managers of the foreign wholesale and retail stores. Tesco Lotus was the foreign venture with the greatest impact on the Thai environment. With respect to managerial approach, it was found that Thai traditional wholesale stores should try to build stronger relationships with customers and regularly search for new markets. Employee performance should also be taken into consideration to some extent. Other issues of importance included the presentation of the store and visual merchandising, as well as transparency in management systems and the need for well–organized financial and accounting systems and their proper control.

Due to the increasing of number of universities in Thailand might lead to high competitive environment. Therefore, the university image and brand play an important role for student's intention to study at each university. This research aims to identify the factors that influence an individual's perception on image and brand at a practice engineering school. The sample group of 420 high school students who applied for technological university was collected. The descriptive statistics and factor analysis were used to examine the students' perception on university image. The results showed that students' perception on image can be categorized into 3 factors: external characteristic factor, emotional factor and taste and intention Factor.

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