Thesis is the development of radio-controlled lawn mower which can move and cut the grass in the desired environment and dangerous to human. The objective is to develop a radio-controlled lawn mower. The results showed that the rate of fuel consumption of controlled lawn mower in to cutting grass. The height of the grass at 6 8 and 10 cm. It has the average fuel consumption is 113 117 and 123 ml. The average time in the mowing is 6.6 8.01 and 9.69 minutes

The purposes of this research are to study water and electricity consumption behavior of the students to study understanding of water and electricity saving and to compare the difference of water and electricity consumption behavior classified as personal characteristic of the students Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon. This research was descriptive research. The sample group used in the research was the students Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon. Size of the sample group was specified to be 325 people by stratified sampling. The tool used in data analysis was questionnaire divided into 3 parts including part 1: questions regarding general details of a respondent part 2: questions regarding knowledge of water and electricity saving consumption the students of Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon and part 3: questions regarding water and electricity consumption behavior of the students Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon. The statistics used in data analysis consisted of frequency percentage mean standard deviation and hypothesis testing using t-test and ANOVA (Analysis of Variance) for testing parallel difference by LSD method. The research result found that: 1. The level of water and electricity consumption behavior of the students Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon was overall in the moderate level. 2. The level of understanding and knowledge regarding water and electricity saving of the students Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon was overall in the moderate level. 3. The comparison of different behavior of water and electricity consumption specified according to personal characteristics could be summarized that the students having different gender class and major had identical water consumption behavior and the students having different gender class and major had identical electricity consumption behavior. On the other hand the students having different major had statistical significance in electricity consumption behavior at 0.05

At present in Thailand single cylinder small engines have been used generally for agriculture. This leads to large amount of fuel import while the price of fossil fuels rise continuously. The Department of Alternative Energy Development and Eff iciency Ministry of Energy decided to draft the minimum energy eff iciency standard for small engines by studying and testing specif ic fuel consumption of gasoline and diesel engines based on the JIS B 8017 and TIS 787-2551 standards respectively. Results of the experiment revealed that specif ic fuel consumption of gasoline engine was higher than diesel engines between 39% and 49% at equivalent energy supply. However the limitation of maximum and minimum energy eff iciency for gasoline engine is still necessary in order to enhance energy eff iciency of small engines manufactured in Thailand

The objective of the independent study was investigating consumers’ behavior and consumers’ satisfaction to assess the Khun Or Nam Neung ChockChai 4 Restaurant. Basic factor of demographics and satisfaction levels could provide into the 4 marketing mixed factors that includes product price place and promotion. Samples were selected from 400 persons who consume in Khun Or Nam Neung Chock Chai 4 Restaurant. Data were collected by questionnaires and analyzed using software. The results of this independent study founded that most consumers were female aged more than 45 years old (58.00%) received a bachelor degree (42.00%) company enterprise (48.00%) and average revenue more than 30000 baht per month (42.00%). The most of Vietnamese food is “Nam Neung” and the reasons that they choused because Vietnamese food was very difference taste from another. For the most satisfaction level the marketing mixed factor was place factor. For the more satisfaction level the marketing mixed factors were product factor and price factor. For the medium satisfaction level the marketing mixed factor was promotion factor.