https://dspace.rmutk.ac.th/jspui/handle/123456789/2110 Tue, 14 Apr 2026 18:47:55 GMT 2026-04-14T18:47:55Z http://localhost:80/jspui/retrieve/e61ed443-36a9-48b2-b880-87543b97b420/ https://dspace.rmutk.ac.th/jspui/handle/123456789/2110 https://dspace.rmutk.ac.th/jspui/handle/123456789/2121 Title: Development of Active Learning in Learning Management Subject Authors: สถาบันวิจัยและพัฒนา Abstract: The development of active learning in learning management subject was aimed to examine the effects of active learning on students in the learning management subject and to evaluate the characteristics of instructors in the management of active learning. The sampleswere students who enrolled in the learning management subject in the second semester of academic year 2015. Cluster random sampling was employed to obtain 2 sample groups of 67 students. The research tools included an active learning management plan using the model, cooperative learning model, concept attainment model, inductive teaching and learning model, graphic organizer instructional model, group discussion, case study, game, problem base learning, and constructivist video instruction in the 15-week-learning management subject, memo to instructors, and a questionnaire with reliability of 0.94. The result suggested the effects of active learning in the learning management subject in overall found that the activities arranged by instructors for students were appropriate at high level. Students reported the most pronounced effect of activities arranged by instructors was on promoting collaborative learning, followed by enabling teamwork skills development, applying activities to students’ future professional training, practicing class oral presentation, and participating in teaching and learning activities. For the characteristics of instructors, students viewed them as appropriate at highest level, with highest level of mean for instructors’ teaching knowledge and competency, followed by instructors’ preparedness in teaching, and instructors as facilitator and stimulator of students’ learning. Sun, 01 Jan 2017 00:00:00 GMT https://dspace.rmutk.ac.th/jspui/handle/123456789/2121 2017-01-01T00:00:00Z https://dspace.rmutk.ac.th/jspui/handle/123456789/2120 Title: Die improvement for reducing energy during radiator cover engine motorcycle Forming process Authors: สถาบันวิจัยและพัฒนา Abstract: The purpose of this research was to improve the single die design to reduce energy usage during forming process of motorcycle engines’ radiator covers using Aluminum Alloy AA 6061 material. The manufacturing process can be divided into two parts, which are sheet metal manufacturing by using blanking die and forming with a drawing die. The design improvement, a computer program was employed for the analysis and processing. Then, the die processing was tested to search for errors and improve the positions that caused damage, by adjusting the cutting angle on the punch of blanking die for radiator cover production at 0 degree, 1 degree, and 2 degree, the tests were performed before and after each improvement. Regarding the experiment, the result was close to the result from Finite Element Analysis, for the forming die, installed finger stop and profile blank before and after improvement. In operation die processing demonstrated it was effective and number of units that could be produced by using blanking die was 15,508/day pieces, both in pre and post experiments. Nonetheless, it was able to reduce the cutting force for cutting angle by 30%. For the work pieces produced by die processing after the improvement, the goods free of damage were 99:1%. The electrical energy used by the press in the forming process by a blanking die after the improvement the specific energy consumption was reduced by 1.51% and the specific energy consumption of die processing after improvement was reduced by 62.59%. As a result, the manufacturing company can reduce energy and increase energy capacity of the pressing machine for product forming efficiently. Sun, 01 Jan 2017 00:00:00 GMT https://dspace.rmutk.ac.th/jspui/handle/123456789/2120 2017-01-01T00:00:00Z https://dspace.rmutk.ac.th/jspui/handle/123456789/2119 Title: The Power Generation Test of Thermoelectric Modules Authors: สถาบันวิจัยและพัฒนา Abstract: This article presents a test of power generation from Thermoelectric modules. To test the maximum voltage generation from the difference between the hot temperature and cool temperature of the Thermoelectric modules. To increase the number of Thermoelectric modules to increase the voltage to the appropriate applications. Thermoelectric test with load resistance for the electricity Thermoelectric generation. Use the current and the voltage to the converters circuit design, to suitable for applications. Sun, 01 Jan 2017 00:00:00 GMT https://dspace.rmutk.ac.th/jspui/handle/123456789/2119 2017-01-01T00:00:00Z https://dspace.rmutk.ac.th/jspui/handle/123456789/2118 Title: Quantity analysis of Borax in Meat and Meatballs Sold in Trang province Authors: สถาบันวิจัยและพัฒนา Abstract: The object of this research was to analyze the content of borax in pork and meatball that sold at local market in Trang Province. The sample was digested with 1% sodium carbonate and colored with curcumin solution. UV-Visible Spectrophotometer was used for borax analysis and boric acid was used as standard. The result showed that borax content of pork were in the ranged from 2.039 ppm to 5.340 ppm, while borax content of meatball were in the ranged from 1.608 ppm to 2.572 ppm. Borax is a substance that is harmful to health if consumed. Borax is prohibited substances in food, according to notification of Ministry of Public Health (No.151). Sun, 01 Jan 2017 00:00:00 GMT https://dspace.rmutk.ac.th/jspui/handle/123456789/2118 2017-01-01T00:00:00Z