The purposes of this study aim 1) to evaluate the academic achievement and 2) to study learners satisfaction towards teaching multimedia in the Course Ngor30275 Commercial Flower Arrangement Unit 6 Introduction to Flower for high-school students of Chaichimplee Wittayakom School Bangkok. Sample in this study is 30 students who attended Sports and Home Economics Program and chose Home Economics Course in to 2nd semester of the academic year 2019. According to studies 1) the result of the teaching multimedia proficiency assessment on the content basis by 3 experts was at the highest level by all accounts and the mean was equivalent to (X̅ =4.73S.D. = .31). And the result on the multimedia basis was also at the highest level and the mean was equivalent to (X̅ = 4.63 S.D. = .29) . 2 ) the assessment in the performance of a representative sample of students in the 8 different patterns using scoring rubrics whose standards were at every high level. 3) the assessment on the student’s satisfaction with the teaching multimedia for 8 patterns were as follow Pattern #1 - Spherical Pattern the overall satisfaction analysis result was at the highest level and the mean was equivalent to (X̅ = 4.61 S.D. = .06) . Pattern #2 - Equilateral Triangle Pattern the overall satisfaction analysis result was at the highest level and the mean was equivalent to (X̅ = 4.72 S.D. = .05). Pattern #3 - Scalene Triangle Pattern the overall satisfaction analysis result was at the highest level and the mean was equivalent to (X̅ = 4.61 S.D. = .03). Pattern #4 - Tall Pattern the overall satisfaction analysis result was at the highest level and the mean was equivalent to (X̅ = 4.68 S.D. = .06). Pattern #5 - Short Pattern the overall satisfaction analysis result was at the highest level and the mean was equivalent to (X̅ = 4.64 S.D. = .06). Pattern #6 - Long-Bouquet Pattern the overall satisfaction analysis result was at the highest level and the mean was equivalent to (X̅ = 4.66S.D. = .05). Pattern #7 - Circular-Bouquet Pattern the overall satisfaction analysis result was at the highest level and the mean was equivalent to (X̅ = 4.69 S.D. = .05). Pattern #8 - Flower Arrangement Pattern the overall satisfaction analysis result was at the highest level and the mean was equivalent to (X̅ = 4.72 S.D. = .08).

This project was to design and development of indigo dyeing bag for men. The objective were to study the pattern and type of bag in order to get a new one and allow consumers to choose more that it were a folk wisdom that had a long time. There was an own identity and the villagers occupation. Setting it inspired in the pattern design from the overlapping curves of mountains. The color tones used in the set of indigo dyed bag design were to use cool tones. The materials used to make the bag consist of indigo dyed fabric genuine bull leather zipper mesh fabric adhesive fabric elastic magnetic button lining and pincer string bag lock. The bag strap used nylon string fabric to strength. The opinion assessment to the backpacks chest bag waist bag and belt bag from the indigo dyed fabric in Sakon Nakhon province. The sample group responded the following questionnaire: Bringing the indigo fabric to make the suitable product was the most 59 percent. The suitable materials were the most 42 percent. The suitable product shape was the most 55 percent. The suitable colors were the most 64 percent. The durability usage was the most 52 percent

The faults in a power distribution system do not only impact to power outage directly. They also cause voltage sag problem spread over the system. A single-line to ground fault is about 70% of the overhead system faults. The magnitude and duration of voltage sag causes the economic damage of the system. This paper presents an analysis of the different systems grounding to mitigate the voltage sag in a power distribution system by using the technical analysis system in case of one phase to ground fault. The objective is to minimize voltage drop for users using the simulation with single line to ground fault in distribution system voltage level at 22 kV PEA’s test system by the computer program. The results show that the grounding method can mitigate the voltage sag and reduce the damage of the economic system.

This objective of this research is to study the development of the pararubber tapping knife in order to determine the optimum of the edge and oblique angle and to compare the efficiency of the electrical motor and Je-Bong knife. The product was manufactured by iron steel carbon S45C and AISI 5160 with 75-90 degree edge knife and 0-45 degrees oblique angle. The results can be concluded that the optimum condition of the edge knife oblique knife and the cutting force were 75 degree 45 degree and 3.51-51.42 N respectively. It was found that the cutting force was straightly increased form 0-51.42 N and then gradually decreased. The energy consumption of timber cutting was 0.00370 J/mm3. The quality of the rubber tap using electrical motor was 72.07% which was higher than 2.8 of Je-Bong knife. As the results this product shows the average of rubber timber which is 2.22 mm. in 22.51 s.