The fatigue testing machine that uses the force of torsion is invented to be a compact machine that uses the torsion as the force in the test. From the tests it achieved the highest of 200 newton meters using pneumatics to test the metal materials i.e. the steel S45C molded in accordance with the JIS Z 2274 standard. To find out the capacity of the fatigue testing machine that uses the force of torsion with 8 mm 10 mm and 12 mm diameter test pieces the machine was tested with different levels of the force of torsion and the percentage of the deviation of the tests did not exceed the limit of + 10 percent. This research could reduce the cost of the procurement of the fatigue testing machine that uses the force of torsion and could be used in the instruction in the department of mechanical engineering faculty of engineering Rajamangala University of Technology Phra Nakhon in the future.

Continuing Professional Development for Engineers is any structured process or activity that enhances the competence and quality of a person necessary to perform a professional job. The continuing engineering profession is a useful tool for professionals. The objectives of the research is to find a short course approach for the continuous development of the engineering profession to meet the needs of industrial engineers in the current era to have knowledge and ability in technology continuously it is important that all engineers have to attend training to enhance their knowledge. Which the development of the knowledge of the engineer As part of the promotion of license for professional practice at the ordinary level and degree engineer Including the registration as an ASEAN Engineer and APEC Engineer.

This research aimed to study environmental and social disclosure levels the relationship between performance and environmental and social disclosures and the comparison of the performance and environmental and social disclosures of industrial product companies and the resource industry group listed on the Stock Exchange of Thailand. The secondary data was collected from financial statements annual reports and the data entry forms (Form 56-1) from 2015 to 2019 of the total of 130 companies. Descriptive statistics were used for the analysis namely mean and standard deviation. Inferential statistics such as correlation analysis and multiple regression analysis were also used. The research results showed that there was a Statistically significant correlation between the performance and the environmental and social disclosures of the companies in the industrial product group including reusing aspects environmental monitoring aspects and environmental law aspects and the return on equity (ROE) debt ratio (DR) and stakeholder equity (SE) at the levels of 0.01 and 0.05. In the resource industry group there was a statistically significant correlation between environmental and social disclosures namely recycling aspect with return on equity (ROE) debt ratio (DR) and income at the levels of 0.01 and 0.05.

This study aims to develop interactive learning interactive Chinese modern andeasier to understand. To increase student achievement before and after learning. And satisfaction of learners with interactive learning interactive learning in Chinese. The samples to compare student achievement before and after learning and satisfaction of students in the ninth grade at one school Photisarn Pittayakorn. Phuttamonthon 1 Bang Bang Ramat Bangkok 2 classrooms of 36 people divided into two groups: a control group and an experimental group of 18 people 18 of them using a questionnaire to collect data. The statistics used for data analysis were frequency percentage mean standard deviation. And t test (t-Test) results showed that: 1) the development of interactive learning interactive Chinese modern and more easily understood 2) achievement after learning with the learning materials. interactive Chinese learning higher than before and 3) the students are satisfied with the media in an interactive learning Chinese at a high level.