The objective of this research was to study the quality of tourism services of Bangnumphung Floating Market based on the service marketing theory which involved product price place promotion physical evidence people and process. The research instrument was questionnaire. The 400 subjects were selected by convenience sampling. The results demonstrated that the opinion of tourists on tourism service quality of Bangnamphung Floating Market was in a good level wheeas the quality of promotion was a neutral level in every area except for the additional events which were in a good level. The majority of the respondents preferred natural tourist attractions. The source of information about the Floating Market was acquired through friends family and relatives. Convenience is the reason why the respondents wanted to visit such place. The majority of the respondents had used cars to the floating market and they were also accompanied by their family : Parents children siblings and relatives. The visit frequency was twice to three times. The tourists spent 2-3 hour travel per visit. Tourists expenditure was 501-700 baht. The activity was to have meat dish and sweet food.

The results revealed that the manager๛s opinions towards operation of quality control and inspection of auto-parts at a high level were lineworkers in car accessory production plant and other production plant. The opinions of the office workers towards operation of quality control and inspection of auto parts at a high level were lineworkers in car body production plant car accessory production plant and other production plant. When comparing the operation level of quality control and inspection of plants classified by types of vendors it was found that there was a significant difference at .05 level. The collected data were analyzed by SPSS program into percentage mean standard deviation t-test one-way ANOVA and multiple comparison.

The trend of energy savings has been widely interested and phase shift transformers (HMT) have been extensively used. This paper presents the investigation of the effect of harmonic currents on losses of the HMT. In this paper a 15-degree HMT with quad secondary winding is applied to find the relationship between harmonic currents and losses of the HMT. This relation can be met by testing the active power of primary and secondary sides while the HMT supplies for two and four non-linear loads at 25% 50% 75% and 100% rated currents respectively. The results reveal that harmonic currents affect winding eddy current losses significantly and the losses for loading the two secondaries 1 and 2 are the same as loading the two secondaries 1 and 3 while both %THDi are different. However for loading the secondaries 1 and 2 the %THDi is more than 15% so it is not met IEEE 519 Std. while the HMT is supplied with four loads the %THDi has met IEEE 519 Std. and the losses are less than 57% compared to one load. As a result of these if the HMT is applied to an adjustable speed drive system it is not only reduced the harmonics but also saved the energies.

In Klong Rangsit Pathumthani province where the water entering was filtered by a prototype quality water machine and autonomously controlled by pumps and sensors this research tested improvements to water quality. It employs a total dissolved solid and temperature sensor as part of the consideration of the water quality criterion in accordance with the water quality requirements of the Pollution Control Department and is 99% successful in treating contaminants in water. According to the Pollution Control Departments water quality criteria which are divided into four main categories: very good water quality good water quality degraded water quality and very degraded water quality it is used in the analysis of the division of the four categories of water quality. Machines for producing good quality water to maintain water sanitation during COVID-19 and anticipated flooding across the nation. This is simple to use. Since the made quality water machine prototype has a battery to back up the power for the pump and UV lamp control by filtering water through various stages of a quality water producer prototype it is simple can generate clean water for usage and can be carried. No energy is used and there is no residue filtration effluent. It eliminates 99 percent of water pollutants and has no color.

This research aimed to study the lifestyle behavior of students of Rajamangala University of Technology Phra Nakhon according to the Sufficiency Economy Philosophy. To study the factors influencing the lifestyle behavior of students of Rajamangala University of Technology Phra Nakhon according to the Sufficiency Economy Philosophy. Data collection was conducted between October 2020 and September 2021. It was a survey research using questionnaires. It consists of 4 parts: 1) general information of students which are demographic characteristics 2) knowledge and understanding of the Sufficiency Economy Philosophy 3) lifestyle behavior according to the Sufficiency Economy Philosophy and 4) the students opinions on the adoption of the Sufficiency Economy Philosophy. Sufficiency Economy Philosophy is applied in life. The sample group in the research was students of the University of Technology. The data were analyzed using descriptive statistics for demographic characteristics. The results showed that Demographic data of students of Rajamangala University of Technology Phra Nakhon found that most of them were female aged 20 years studying at the Faculty of Business Administration in the 3rd year. Most of their parents were employed. Family income per month is 20001 – 30000 baht there are expenses per month. (Students only) is 3001 – 6000 baht per month and most students live at home during their studies. in the field of knowledge Understanding of Sufficiency Economy Philosophy Student at Rajamangala University of Technology Phra Nakhon most have knowledge Understanding of Sufficiency Economy Philosophy knowledge level is moderate and when classified according to demographic data show that Students of Rajamangala University of Technology Phra Nakhon with different demographic data knowledge and understanding of sufficiency economy philosophy Life behaviors according to the Sufficiency Economy Philosophy of students of Rajamangala University of Technology Phra Nakhon overall and in each aspect at a high level They can be sorted in descending order of average as follows: Moral conditions reasonableness good immunity moderation and knowledge conditions respectively.