The objective of this paper is to design and develope solar hybrid oven for common usage heat energy between sunshine and heater. The technology improvement of integrated solar dryer cabinet aims to prove that the solar energy for thermal purpose is the most useful alternative device for energy conservation which helps environment and pollution protection. It can also be an effective equipment for industrial drying process of herbal plants and products in term of dehydration humidity reduction and fungus termination. The use of solar dryer cabinet can serve the high demand in the market of Thai herbal products which some of which are also used as detoxification. Solar Hybrid Energy Oven choose between infrared heater and DC heater. The outer structure of solar drying cabinet is made of aluminum sheet of 60 cm. wide 60 cm. long and 80 cm. high. The inner box is coated with black paint. The experimental process and data collection of solar radiation was carried out for 15 days. The humidity value measurement was conducted during a 5-hour drying process with data collection at every 20 minutes. The herbal plants used in the experiment are lemongrass pandanus citrus hystrix leaf red paprika and gotu kola. The data collection hours are from 10.00 am to 15.00 pm and the finding shows that the highest temperature in the cabinet reaches 99 degree Celsius . The fastest dehydrated and dried plant is pandanus whose initial humidity value is 589.6 % dry basis and humidity mean after drying process is 3.4 % dry basis. Lemongrass contains the second highest initial humidity value which is 566.6 % and humidity mean after drying process is 3.3 % dry basis .This indication confirms that the technology of solar energy combined with infrared heater can most effectively generate the heat in the cabinet to serve the drying process.

Thermoelectric properties of cubic perovskite SrTiO3 have been investigated. The energy band structures are calculated using the total energy plane-wave pseudopotential method within the local density approximation (LDA) and generalized gradient approximation (GGA). The calculated energy band structures are then used in combination with Boltzmann transport equation to calculate the thermoelectric parameters of doped SrTiO3 especially seebeck coefficient electrical conductivity and electronic thermal conductivity.

The purposes of the research were to create computer assisted instruction for Mechanics of Materials Subject to find out the efficiency validation of computer assisted instruction based on the standard of 90/90 and to analyse the students learning achievement after using the computer assisted instruction. The subjects in the study were 17 second -year diploma engineering students enrolling at Rajamangala University of TechnologyPhra Nakhon. The researcher made the experiment by having the students pretest. Then they studied by using the computer assisted instruction focused on practicing basic turning. After the students had studied and had posttest. the efficiency of the computer assisted instruction was calculated as well as the learning achievement was analysed. The research result revealed that the efficiency of the computer assisted instruction was at the standard of 90 / 90. Moreover the learning achievement after using the computer assisted instruction was different at the significant level of 0.05.

The purposes of the research were to create and efficiency validation of computer assisted for the courses of practiced disassembly and assembly fuel injection nozzles of Diesel Engine based standard 90/90 and analyse the learning achievement of the student after by using computer assisted instruction. The subjects in the study were 11 second year diploma students enrolled in Mechanical Power Department Rajamangala University of Technology Phra Nakhon. The Researcher using the experiment by let the students do until test before class and then stUdy by using computer assisted instruction focused on practiced disassembly and assembly fuel injection nozzles of Diesel Engine. After that let students do the unit test again at the class and calculate to find out the efficiency of the computer assisted instruction and analyse the learning achievement of students after study. The research result revealed that the efficiency of the computer assisted instruction was efficient in standard 90/90. Moreover after learning achievement at significant level of 0.01.

The objective of paper is to design and develop solar hybrid for common usage heat energy between sunshine and heater The technology improvement of integrated solar dryer cabinet aims to prove that the solar energy for thermal purpose is most useful alternative device for energy conservation which helps environment and pollution protection. It can also be an effective equipment for industrial drying process of herbal plants and products in term of dehydration humidity reduction and fungus termination. The use of solar dryer cabinet can serve the high demand in the market of Thai herbal products which some of which are also used as detoxification. Solar Hybrid Energy Oven choose between infrared heater and DC heater. The outer structure of solar drying cabinet is made of aluminum sheet of 60 cm. wide 60 cm. long and 80 cm. high. The inner box is coated with black paint. The experimental process and data collection of solar radiation was carried out for 15 days. The humidity value measurement was conducted during a 5-hour drying process with data collection at every 20 minutes. The herbal plants used in the experiment are lemongrass pandanus citrus hystrix leaf red paprika and gotu kola. The data collection hours are from 10.00 am to 15.00 pm and the finding shoes that the highest temperature in the cabinet reaches 99 degree Celsius. The fastest dehydrated and dried process is pandanus whose initial humidity value is 589.6 % dry basis and humidity mean after drying process is 3.4 % dry basis. Lemongrass contains the second highest initial humidity value which is 566.6 % and humidity mean after drying process is 3.3 % dry basis. This indication confirms that the technology of solar energy combined with infrared heater cal most effectively generate the heat in the cabinet to serve the drying process.