The purpose of this research was to 1. To know the effect of practicing the nine squares table on physical fitness of students of Rajamangala University of Technology Phra Nakhon 2. To compare the physical fitness of Rajamangala University of Technology Phra Nakhon students before and after the training by using a nine square table. The population used in this research was students studying physical education. individual sports or team sports in the academic year 2019 who were healthy not sick were able to receive physical fitness tests and practice nine squares of 30 people divided into a control group of 10 people an experimental group that used a nine square grid size 60X60 centimeters amounting to 10 The experimental group used nine squares size 90X90 cm 10 people. The duration of the experiment was 8 weeks 3 days a week one hour each time. Physical fitness tests were performed before the experiment at week 4 and week 8 and the results were analyzed by statistical method mean standard deviation one-way analysis of variance. Repeated one-way covariance analysis The results showed that 1. After 8 weeks of experimentation it was found that the nine squares training of the 60x60 cm grid training group and the 90x90 cm grid training group improved the average 3-minute steps up and down than the control group. significantly at the .05 level. 2. The results of the nine grid training of the 60x60 cm grid training group found that after 8 weeks of experimentation the mean stepping up and down of 3 minutes within the 60x60 cm grid training group was better than before and after 4 weeks of the experiment. There was a significant difference at the .05 level. 3. The results of the nine grid training of the 90X90 cm grid training group found that after 8 weeks of experimentation the mean stepping up and down of 3 minutes within the 90X90 cm grid training group was better than before and after 4 weeks of the experiment. There was a significant difference at the .05 level.

The purposes of this research were 1 ) to study the personal factors of students in the Home Economics Vocational Certificate Program Phitsanulok Vocational College. 2 ) Study the socio- economic factors of students in the Home Economics Vocational Certificate Program Phitsanulok Vocational College. 3 ) Study the choice of Home Economics Vocational Certificate Program Phitsanulok Vocational College.4) To study the relationship between personal factors and choice of study in Home Economics Vocational Certificate Program Phitsanulok Vocational College and 5 ) comparison of the importance level in choosing to study Home Economics Certificate Program of Phitsanulok Vocational College students classified by socioeconomic factors. The population is 2 7 4 students studying in the Home Economics Certificate Program at Phitsanulok Vocational College in the first semester of the academic year 2 0 2 1 by using a specific selection method. The research instrument was a questionnaire. The statistics used for data analysis were frequency percentage mean standard deviation chi -square and one-way analysis of variance.The results of The results showed that 1 ) students in the Home Economics Vocational Certificate Program Phitsanulok Vocational College is mostly female. The original qualification was lower secondary education with a cumulative GPA in the range of 2.01 - 2.50. The students are currently studying at the Vocational Certificate Level 3 in the field of Food and Nutrition and all of them live in Phitsanulok Province. 2) Most of the families have a total monthly income of 5001 - 10000 baht with their parents being general laborers and students coming from medium-sized families while parents have a high school education. And students are the roles in the choice of studies. 3) Students give importance to choosing to study in Home Economics Vocational Certificate Program Phitsanulok Vocational College. Overall its at a high level. When considering each aspect in descending order it was found that the measurement and evaluation aspect had the highest mean followed by the instructor and the least was the environment and facilities.For the students current educational level it was found that there was a relationship with the choice of study in the Home Economics Vocational Certificate Program Phitsanulok Vocational College by classification according to student development activities statistically significant at the .05 level. 5) In terms of different socio- economic factors it is important to choose the Home Economics Vocational Certificate Program Phitsanulok Vocational College. The relationship was not significantly different at the .05 level.

Most of the current containers that we put food are made of plastic or foam boxes. After the use is finished the container becomes rubbish and will greatly affect the environment. Due to slow degradation Plus informal disposal And higher consumption The use of natural products is in great demand. Because it is beautiful and natural-looking pleasing to consumers Therefore the basic processes forming patterns were studied by rubber product molding techniques. Determine the material to be molded into the sample container. Design and build a small molding set. Provide binders used for the stabilization of natural materials. Experiment for forming and the Conclusion of the experiment From the results of operations and experiments it was found that the study of the prototype extrusion set Using a rubber molding technique Can be applied by various elements The process of rubber molding can be used in the development of natural container molding and the process can produce prototype containers from natural materials. Under the suitable size of the mold the area of the mold is smaller than the mold plate area of the machine or the size of the mold area the area of no more than 60-70% of the mold holder plate.

This research is aimed to propose an ontology-based framework for generating multiple-choice questions that can evaluate students’ knowledge in the analytical level. The questions generated from this framework could encourage students to apply relative concepts from the lesson they learn to produce different paradigms for solving the same problem. The experiment of this research demonstrates an implementation of the framework. A structure of a question set from the framework comprises a problem and an initial solution in the question phrase and multiple choices including one correct choice and three distractors. The experimental results show effectiveness of the questions constructed based on this framework in terms of distractors that can reveal students’ misconceptions. Also difficulty and discrimination indices – P-scores and D-scores used in the experiment show that in a range of difficulty the generated questions can reveal strength and weaknesses of students in the groups of high and low learning performance. Eventually this research suggests how the proposed framework could be used as a foundation for automatically generating questions in a knowledge-evaluation system.

This research aims to study and compare the test results obtained from the rolling resistance tester of automobile tires based on force method and torque method system. The four newly manufactured tires were sampled from two tire classes namely passenger car tires (Class C1) and light truck tires (Class C2). The tire rolling resistance test according to the international standard UN ECE Regulation No.117 was used as an important research process. The experimental work discovers that the rolling resistance of the same tire obtained from the test between the two different methods of testing machines was not more than 6 percent different. The testing results that used the torque method system calculation are high reliability because of the principle of calculation from the measurement value directly results in. and suitable for research testing. However the force method tester can perform more than a tire simultaneous test which is suitable for working in industrial applications where time is limited.