จำนวน Repository ( 1087 )
Optimization for sewing machine setup using experimental design technique
The objective of the research was to identify the optimized thread tensile values for the setup of Model D – We 1218-55 computerized 18-needles sewing machine in order to minimize a number of times the machine halts. The cause of the sewing machine halting which reduced the efficiencies of the machine was found to be torn threads. In order to maximize the efficiencies the experimental design technique was utilized to find the optimal values for five types of cloth: polo tc-cool cotton jacket and shirt. The method involved three nested designs which are the type of thread number of sewing layers and thread-hole size. The three thread tensile levels experimented were low (2 oz.) medium (5 oz.) and high (8 oz.) and the response was the number of times the machine halted in the span of 30 minutes. The ANOVA (Analysis of Variance) used for the experimental design showed that the three factors significantly affected the machine’s halt. The number of times the machine halted was used to create Surface Plot with polynomial trend-lines and the quadratic equation was applied to determine the optimal value for each type of thread number of sewing layers and thread-hole size. The values obtained were then set for another experiment the results of which were that the sewing machine halted less frequently and the efficiencies thus increased about by 77.01%.
Development of parent stock of thai indigenous chicken : chee by selection index
This research aimed to develop a flock of Thai indigenous chicken namely Chee with pure white feather in order to meet the requirement of domestic consumption and export of meat chickens. The genetics on growth must be improve with egg production was no affected. The selections were continuously done for 5 generations. Each generation 30 sires and 50 of 16 week old females were obtained. At suitable age 6 weeks after first egg laid the artificial inseminations were arranged twice weekly with 1: 5 of the male and female proportion. Eggs were collected to hatchery in the 3 consecutive weeks followed with the 2 week skips. Before the next AI of reciprocal cross the 3 groups were bred and 3 generations each. The newborn chickens from hatchery of each generation were weighed and the other measurements were done at the 4 weeks intervals. The data of weights at 16 week old chickens and breast widths were used to calculate for breeding value. The BLUP (Best Linear Unbiased Prediction) was a selection tool to select high selection index for replacement herd of each generation. For the females the 300 day egg productions were added. It was found that from the 1st to the 5th generation the average of 16 week old chickens were 1225.99 1265.86 1461.94 1326.16 and 1439.36 gram respectively. The average body weight gain was 213.37 gram and the average daily gain was 12.85 gram. The 16 week breast widths were 5.46 5.90 5.54 5.56 and 5.65 centimeter respectively. The ages of first egg laid were 211.30 178.66 175.83 171.91 and 171.10 day respectively. In the 5th generation egg production started about 40 days earlier than the 1st generation. The first egg weights were 1390 1426 1467.61 1446.33 and 1529 gram respectively. Egg productions at the 300 day old were 36.38 38.28 40.29 42.42 and 45.58 eggs and it could provide 9 eggs more than 1st generation.
Effect of extraction methods on mao berry marc properties
In this study the mao berry marc which was divided into 5 varieties including Fapratan Phusung Phupanthong Yaykhamta and mixed variety were dried in tray dryer at low temperature (50?C) and high temperature (60?C) for 72 hr. All samples were investigated their properties including yield color water activity pH tannin total phenolic total anthocyanin antioxidant activity in term of %DPPH activity total microorganism and yeast & mold content. It was found that the yield color in term of ?h aw tannin and anthocyanin content of low temperature drying sample showed the highest value. However the total microorganism and yeast & mold content of high temperature drying samples were not present in all samples which less than those recommended in the Thai Community Product Standard (dried fruits: 136/2003). Eight trained-panelists were used for Hedonic scale (1-9 point) sensory evaluation including clarity color odor taste and overall linking of high temperature drying samples were similar in five varieties (P>0.05).
Educational management guideline of applied thai course for foreigners
This research is aimed to study the circumstances of the program management of Applied Thai for foreigners in accordance with the views of the executives the lecturers and the students; the employers’ preferences to student performances; the problems relating to the program management as well as to recommend the development approach on the program management of Applied Thai. The target group includes the executives the lecturers of Applied Thai the third and the fourth class students in the academic year 2011. The tool is the questionnaire data analysis using SPSS. The statistics used include the frequency percentage mean and the standard deviation. The results of the study are the overall views of the students the executives the lecturers and the students agree with the program management of Applied Thai in a high level. As for the approach on the program management of Applied Thai for foreigners the need and interest analysis of the students and job market needs.
Effect of beetroot pulp added on physical properties and acceptability of muffin
The objective of this research was to determine the optimal ratio of beetroot pulp to produce American muffin. The experimental arrangement in CRD was used to study the effect of ratio of beetroot pulp at 0 % 5% 10% and 15% of total weight on the quality of product. As beetroot pulp increase L* and b* of sample decreased were observed (p<0.05) while beetroot pulp decrease a* of sample increased were observed (p<0.05). For textural properties higher in beetroot pulp added showed notably decreased in hardness and cohesiveness (p<0.05) and increased in springiness (p<0.05). At 10% of beetroot pulp to produce American muffin by 9-point hedonic composed of 26.66 % moisture 24.63 % protein 11.43 % lipid 1.40 % ash 0.92 % crude fiber 1.34 % insoluble dietary fiber and 55.88 % total carbohydrate 344.91 Kcal. of total energy 102.87 Kcal. of energy from fat and increase of anthocyanin 0.37 %.