This special project is 1) to develop World Phenomena Game for Grade 3 students 2) to measure knowledge after using World Phenomena Game and 3 ) to study user satisfaction after playing World Phenomena Game. In this study an offline ADVENTURE RPG personal computer game was created and validated by 3 professionals with medium level. Then the game was put to test with a sample group of 10 Satrivoranart Bangkhen School’s Grade 3 students. Quiz and questionnaires were distributed to collect student’s knowledge and satisfaction. During data analysis a attest was performed with t-Test = 1.83 p=0.05. indicated that student knowledge after playing game was statistical higher than their knowledge before playing game Furthermore overall user satisfaction was at high level (𝒙̅=4.30 : SD=0.90).

The objectives of this study were 1) produced a virtual reality monster game 2) Evaluate the suitability of the virtual reality monster’s world game and 3) Evaluate the player satisfaction of the virtual reality monsters World game using. There were two groups of samples the first were a group of 3 qualified experts divided into VR experts character design and print media. The second sample was a group of virtual reality Monster World game players aged 18-39 years. People who like VR games fear that people who have never played VR games such as those over 40 may have motion sickness or severe dizziness. The age limit for people who had never played VR and the recognition of people with shock due to heart disease were obtained using a specific method of a questionnaire. Analyzing the data for mean and standard deviation. The results showed that the overall assessment result was at the appropriate level (𝒙̅ =3.85 S.D.=0.56) and the printed media assessment result was at the high level with a bad value (𝒙̅ = 4.38 S.D.=0.47) result. Of the players who were satisfied with the Monster World game the evaluation results were in the appropriate level (𝒙̅=4.38 S.D.=0.56).

This study was conducted to isolate and classify fungal dirty panicle disease pathogens from five rice varieties. Observation of rice seeds under stereo microscope showed that the seeds from all five varieties had 100% lesions of dirty panicle disease. When isolating the fungal pathogen with three methods i.e. (i) ground rice seeds shaken in dH2O and then spread on potato dextrose agar (PDA) (ii) rice seeds washed with dH2O twice then placed on PDA and (iii) rice seeds shaken in 5% clorox for 5 min after that washed with dH2O twice and then placed on PDA 57 isolates of fungi were obtained. Morphological characterization classified the fungi into 17 genera i.e. Alternaria Arthrinium Aspergillus Biporalis Botryotinia Botrytis Corynespora Curvularia Cylindrocarpon Fusarium Humicola Monilinia Mucor Penicillium Rhizopus Stachybotrys and Stemphylium. Four genera i.e. Alternaria Bipolaris Curvularia and Fusarium were reported to cause of dirty panicle disease of rice. The effect of glow discharge plasma on inhibition of fungal pathogen showed that exposed glow discharge plasma for 150s could inhibit mycelium growth of Curvularia but did not affect to Bipolaris and Fusarium.

This research was studied and transferred the biogas production technology with the community participation using anaerobic dry fermentation system from agricultural residues. The production of renewable energy for replacing LPG in household cooking of Koh Khan Sub-district community Cha-Uat District Nakhon Si Thammarat Province was carried out. The efficiency of the biogas production from different co-digestion material with fresh cow manure was studied for 45 days. The experiment 1 bananas and papaya and the experiment 2 rice straw and coconut meal were used for fermented materials. It was found that the system using rice straw and coconut meal as a fermented material had a higher potential than using bananas and papaya. The system produced averaged biogas of 150 L/d and an average methane content of 67.68% respectively within just 15 days after start-up. While bananas and papaya as fermented materials took more time with more than 30 days after start-up the system. The system produced averaged biogas of 120 L/d and an average methane content of 64.64%. For usability test It was found that 150 L of biogas could continuously cook for 45-60 minutes. The 85% of the technology transfer recipients regarded that the knowledge gained as practical and reduced household expenditures. Additionally the system can produce biogas for a long time without adding new fermented materials. Therefore this biogas system could be applied to local agricultural waste for biogas production which can be expanded to other areas.

The trend of energy savings has been widely interested and phase shift transformers (HMT) have been extensively used. This paper presents the investigation of the effect of harmonic currents on losses of the HMT. In this paper a 15-degree HMT with quad secondary winding is applied to find the relationship between harmonic currents and losses of the HMT. This relation can be met by testing the active power of primary and secondary sides while the HMT supplies for two and four non-linear loads at 25% 50% 75% and 100% rated currents respectively. The results reveal that harmonic currents affect winding eddy current losses significantly and the losses for loading the two secondaries 1 and 2 are the same as loading the two secondaries 1 and 3 while both %THDi are different. However for loading the secondaries 1 and 2 the %THDi is more than 15% so it is not met IEEE 519 Std. while the HMT is supplied with four loads the %THDi has met IEEE 519 Std. and the losses are less than 57% compared to one load. As a result of these if the HMT is applied to an adjustable speed drive system it is not only reduced the harmonics but also saved the energies.