The study of the efficiency of fuel consumption by adjusting the fuel injection pressure is basically one optimization method to maximize the engine combustion. In this current study the Honda wave 110 cc. engine has been used to test in particular the fuel injection by adjusting the pressure of injector. To control the pressure of injection was made by automatic valve injectors with three different pneumatic pressure which were 2 2.5 and 3 bars respectively and the similar running distance of 5km. The results showed that at 2 bars the obtained fuel saving was 1020.68 km/L and the speed at 25.23 km/h which corresponded to the highest CO2 emissions during the engine combustion.

Developing women’s clothing design from marigold-dyed linen. The objectives of the project were : 1) to study about linen dying technique with marigold with various kinds of mordant 2) to design and develop women’s clothing from marigold-dyed linen 3) to study the satisfaction of representative samples for the women’s clothing design from marigold-dyed linen. Using simple random sampling method analyzing the data with statistics percentage mean and deviation standard. The sample groups are selected from working women in Dusit District Suan Chitlada Subdistrict and students from Rajamangala University of Technology Phra Nakhon in total 100 participants. Research instruments are questionnaire and 2 women’s clothing prototypes one was dyed with natural mordant and the other chemical mordant. The results indicated that most of the samples aged from 25 and above single graduated with bachelor degree are general office workers and students and earn less than 15000 baht. The result also revealed the satisfaction for the women’s clothing design from marigold-dyed linen a design which was dyed with both natural and chemical mordant. The participants are satisfied with the modern design suited for working age and very useful at a high level with means of 4.07 and 4.05 natural and chemical mordant respectively. Considering the overall result the participant tended to be satisfied with natural mordant dyed dress more with a mean of 4.07

The purpose of this research was to study the dyeing polyamide/elastane fabric with natural indigo using exhaustion dyeing process. The effects from the concentration of the natural indigo dye thiourea dioxide and sodium hydroxide were investigated. The colour of each dyed material was investigated in term of the CIELAB (L* a* and b*) and K/S value. The color fastness to washing rubbing perspirdation light water sea water and chlorinated water of the dyed samples was determined. The bursting strengrh of dyed polyamide/elastane was evaluated. The best vatting condition was at 50 ̊C for 30 minutes. The optimal formula of dyeing polyamide/elastane fabric using natural indigo was prepared by mixing 200 g/L natural indigo paste 60 g/L thiourea dioxide 1 g/L sodium hydroxide. The fabric dyed in the solution of indigo vatting a shade of dark blue colour. The color fastness to light washing water sea water perspiration and chlorinated water were good to very good. However the rubbing fastness results showed fair level. The bursting strength of dyed fabrics is less than the undyed fabric 3.1%. The optimal ratio of discharge printing on polyamide/elastane fabric were compose of 70 % starch print paste and 30 % discharging agent (KMnO4). The pattern design produced from these combinations in the printing areas on fabrics showed an excellent standard of printing quality. The results confirmed that natural indigo dyes have potential applications in polyamide/elastane fabric dyeing and the dyed fabric can be used produce women’s intimate apparel.

The research projects of Development of Thai Silk Scrap of “Panpum” by Thai Painting Technique. The purpose is as follow. 1) To study the product development process Thai Silk Scrap of “Panpum” . 2) To study the satisfaction of the target group on the product Thai Silk Scrap of “Panpum” . The results revealed that 1) The experts from 5 person commented that Development of Thai Silk Scrap of “panpum” by Thai Painting Technic from the sewing. It can be used in the field home economics for 3 persons but it can’t be used for 2 persons because the silk scrap was quite high Prices and also famous. Later Experts 4 persons give opinion that can development but 1 person give opinion that can not development because writing may not be clear. In writing Thai motifs on a piece of silk to be a variety of petals. 5 experts give opinion that was a conservation invention. Finally 5 experts give opinion that patterns were appropriation to make development. They don’t need more patterns. 2. Satisfaction of target group Thai Traditional of “Panpum” When considering each found as following. Creative was high satisfaction with average 4.23 . Appropriate was high satisfaction with average 4.13 Beauty was high satisfaction with average 4.11 color tone was high satisfaction with average 4.05 General shape of the Thai traditional “panpum” was high satisfaction with average 4.02 . And design was high satisfaction with average 3.66. Overall consideration was highest with average 4.84 “Thong noy” Tray with pedestal. When consideration each topic found as following. Appropriation was high satisfaction with average 4.56. Beauty was high satisfaction with average 4.43. Color tone was high satisfaction with average 4.30 . General shape of “Thong noy” Tray with pedestal high satisfaction with average 4.26. Create was high satisfaction with average 4.25. Design was high satisfaction with average 4.12. Overall consideration was high satisfaction with average 4.30

The objectives of this research were to study the effect of hot air velocity on the changes of the moisture content and temperature of preserved tomatoes undergoing combined conveyor system and hot air drying. Specific energy consumption physical properties in term of color and shrinkage and sensory evaluation of dried preserved tomatoes were also investigated. The preserved cherry tomatoes were dried at a drying temperature of 80oc and hot air velocity of 2 and 4 m/s until the moisture contents of the preserved tomatoes were lower than 18% wet basis. The experimental results showed that the hot air velocity had effect on the changes of the moisture content and temperature of preserved tomatoes. Specific energy consumption total color difference shrinkage percentage and sensory evaluation results of dried preserved tomatoes of the hot air velocity of 2 and 4 m/s were not significantly different (P>0.05).Moreover the dried preserved tomatoes obtained from this research had significantly lower sensory scores in term of color and appearance than those obtained from the local market (P≤0.05). However sensory scores in term of flavor texture and overall preference of the dried preserved tomatoes obtained from this research and the local market were not significantly different (P>0.05).