The purposes of this study were 1) to create a construction of design program for practical skills system of engine repairing 2) to determine the quality of design program for practical skills system of engine repairing 3) to evaluate the users’ satisfaction of a design program for practical skills system of engine repairing. The sample used in this study consisted of 30 lecturers from automotive division university and 39 lecturers from the office of vocational education commission. The tools used in this study were the quality assessment for practical skills system of engine repairing and the satisfaction assessment of the users to design program for practical skills system of engine repairing. The statistics used for data analysis were percentage mean standard deviation and t-test for dependent samples. The results of the study were as follows: 1) the quality of were very good level design program of for practical skills system of engine repairing( = 4.70 S.D. = 0.21). 2) User’s satisfaction level after accessing the program were very good level ( = 4.60 S.D. = 0.11). 3) The results were compared to assess the satisfaction level of the user from Nakhonphanom university and the office of vocational education commission towards of design program for practical skills system of engine repairing in the field of design content and application found that in each of the satisfaction level did not differ significantly at .05 level. 4) The results were compared to assess the satisfaction level of industrial community education and technical college towards of design program for practical skills system of engine repairing in the field of design content and the application found that in each of the satisfaction level did not difference at significance level .05

This study focuses on appropriate opening design of natural ventilation for green chemistry laboratories in Thailand. Even though natural ventilation is an alternative way to save energy from using air conditionings nowadays there is no design guideline to promote natural ventilation for chemistry laboratories in the country. Computational fluid dynamics (CFD) was used to simulate building models with various orientations and opening types. Then a set of simulations was run to test the effect of lay-out designs and opening locations in conjunction with the type of building models such as single-loaded corridor double-loaded corridor and atrium-loaded corridor by comparing ventilation performance with 8 wind directions at the speed of 2 meters per second. Results show that the single-loaded corridor lay-out design and opening arrangement which angled at 180 degree of wind direction and average wind speed of more than 0.5 meter per second was the most suitable comfort for improved natural ventilation in chemistry laboratories. Natural ventilation helps in reducing energy consumption improving quality of indoor environment and responding to the need of users based on standards and principles of green chemistry laboratory design.

This research was aimed to investigate for pineapple leaf paper drying. In this study process of drying the paper as a final step after the other. Paper drying time takes in solar energy to dry naturally for at least 2-3 days or more without natural sunshine. Solar hybrid energy dryer was designed for drying faster than traditional drying. The development of solar hybrid energy dryer ability to operate continuously. The solar dryer receives the heat from sunshine by passing into the solar panel dimension 1 x 2.6 m2 . The panel was installed on the top of the oven which declined 15 degree from the ground. The dimension of the oven is 1 x 1.05 x 1.30 m3 and have added heat to paraphrase another 2 rooms and heater 4 kW with controller and have added heat to paraphrase another 2 rooms. The dryer installed heater 4 kW with temperature controller and blower 0.22 kW serves as the circulation of heat in the oven to constant flow of 0.138 m3 / s. Experiment research test 3 types ; the use of solar energy alone the use of solar heater with a temperature of 50 55 and 60 °C and the heater only at 50 55 and 60 °C with three temperature settings. The variables in the study such as temperature humidity in the dryer humidity and Solar energy affect the pineapple leaf paper drying time. Experimental results from solar heater hybrid with 60 °C temperature setting was dried in minimum period of 3 hours and half at an average initial moisture content 1043.70% db to the final moisture content of 9.12% db. Highest average temperature in the dryer was 64.33 °C with electrical energy consumption 10.5 kWh. The use of only solar drying was dried in maximum period of 5 hours at an average initial moisture content 1070.98% db to the final moisture content of 15.84% db. Highest average temperature in the dryer was 39.89 °C with minimum electrical energy consumption 10.5 kWh.

The objectives of this research are to construct and determine the quality and efficiency of a simple vibration experiment package. This experiment package design was based on free body diagram of content and main knowledge analyzed from behavioral objectives. Quality of the experiment package was assessed by 12 experts in 4 aspects which included theoretical sheet experimental sheet exercise sheet and experiment device design. The efficiency evaluation was performed by a sample group of 18 students. The exercise sheet was done by the students after finishing each teaching topic and examination sheet was done after finishing all teaching topics. Results showed that quality of the constructed simple vibration experiment package was in a high level of 4.8. Efficiency of the experiment package was 80.47/81.85 which was higher than specified in the research hypotheses. Therefore the experiment package could be applied to teach in any classroom with high students learning outcome.

การวิจัยเรื่อง องค์ประกอบที่มีส่งผลต่อความสามารถในการเรียนวิชาคอมพิวเตอร์กราฟิกส์ ครั้งนี้ โดยมีวัตถุประสงค์เพื่อ 1) เพื่อศึกษาความสัมพันธ์ระหว่างสมรรถภาพทางสมอง แรงจูงใจภายในของตนเอง ลักษณะนิสัย และการรับรู้ความสามารถของตนเองกับความสามารถในการเรียนวิชาคอมพิวเตอร์กราฟิกส์ และ 2) เพื่อสร้างสมการพยากรณ์ความสามารถในการเรียนวิชาคอมพิวเตอร์กราฟิกส์ ของนักศึกษาสาขาวิชาไฟฟ้า แขนงวิชาวิศวกรรมคอมพิวเตอร์ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร กลุ่มตัวอย่างได้แก่ นักศึกษาสาขาวิชาไฟฟ้า แขนงวิชาวิศวกรรมคอมพิวเตอร์ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร จำนวน 15 คน ซึ่งได้มาโดยการสุ่มกลุ่มตัวอย่างแบบเจาะจง (Purposive Sampling) เครื่องมือที่ใช้ในการเก็บรวบรวมข้อมูลในครั้งนี้ประกอบด้วย 1) แบบทดสอบสมรรถภาพทางสมอง 2) แบบวัดแรงจูงใจภายในของตนเอง 3) แบบ ทดสอบวัดลักษณะนิสัย 4) แบบวัดการรับรู้ความสามารถของตนเอง และ 5) แบบทดสอบวัดความ สามารถด้านการเรียนวิชาคอมพิวเตอร์กราฟิกส์ สถิติที่ใช้ในการวิเคราะห์ข้อมูล ได้แก่ ค่าเฉลี่ย ค่าร้อยละ ส่วนเบี่ยงเบนมาตรฐาน และการวิเคราะห์ค่าสัมประสิทธิ์สหสัมพันธ์แบบพหุคูณ