In this research we will study an algebraic structure d-algebras. Then we establish an algorithm to check any sets in d-algebras if they are ideals or T-fuzzy d-ideals. Moreover we investigate some related properties in d-algebras.

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).

The objectives of this study were 1) to Produce augmented reality technology book for teaching Thai proverbs for grade 5 2) to compare the achievement before and after studying the augmented reality technology book for teaching Thai proverbs for grade 5 Grade 5 and 3) to study the satisfaction of books on augmented reality technology for teaching Thai proverbs for grade 5 using 2 sample groups 1) a group of experts to assess satisfaction amount 3 people who are teachers in Thai language courses; 2) a group of 40 primary education students in Puk Chit School 5 obtained by a simple random method by using questionnaires to collect data The statistics used to analyze the data were frequency percentage mean and standard deviation. The results of the study found that Augmented reality technology book for teaching Thai proverbs for grade 5 overall satisfaction was at a high level (𝒙̅=4.10 SD=0.56) and the experimenters used augmented reality technology book media for teaching. Thai proverb for grade 5 the average academic achievement after school is higher than before (𝒙̅=3.96)

his project presents a power flow analysis model for the purpose of studying power flow in a power system model. At present electric power is an important factor driving the country both in industry and transportation. The demand for electric power tends to increase the production is insufficient to meet the demand. Therefore it is necessary to make the most of the energy resources available in the system. An effective system must be analyzed to detect possible errors. A sudden increase or decrease in load in the system may result in inadequate production and distribution efficiency. Therefore this project is presented for the analysis of power flow in a 3 bus 5 bus and 30 bus power system model using a math simulation program. It is divided into 3 case studies: Case 1 power flow under normal conditions Case 2 transmission line disconnection Case 3 adding distributed power generation sources.