Objectives of this research are to select concentrated Thai fragrance formula for evaluation by sensory test and quality test using Thai Community Products standard for fragrance and to study consumers’ acceptance. This experimental research used 2 groups of population: 25 specialists and 300 personnel of Rajamangala University of Technology PhraNakhon. Methods used for analysis in this research were sensory test products standard test and questionnaires. Statistical analysis included Percentage Mean and Standard Deviation. Results found Thai fragrance formula 2 received the highest satisfaction when compared with formula 1 3. The evaporation method got higher satisfaction than dried powder method both before and after mixing with water. Overall satisfaction of dissolving 50 g of products in 600 ml of water had the best satisfaction level. The product passed the standard test at very good level Most respondents were female with Bachelor’s degree with civil servant career. The product which had been diluted with water received better acceptance in all aspects than the product which had not been diluted with water. Satisfaction in concentrated Thai fragrance formula had high score because it was easy to use and keep If this product was sold. Most respondents thought that Thai perfume can be used in all Thai ceremonies at the best price of 30 Bath.

This research proposes reliability analysis in order to find the probability that a machine will work properly the failure rates of a machine and the factors related to the failure rates. The data were collected from 8 types of machines in an autoparts manufacturing factory. They consist of the times measured from the first day of the study until the machine produces defective product workers and production steps. The study duration is 90 days. The results show that the probability that the machine type 4 will work properly more than days is 0.40 machine type 5 more than 68 days is 0.32 machine type 6 more than 72 days is 0.31 machine type 8 more than 85 days is 0.26 machine type 9 more than 109 days is 0.80 machine type 10 at more than 52 days is 0.38 machine type 11 more than 71 days is 0.32 and the probability that the machine type 12 will work properly more than 85 days is 0.26. The failure rate of the machine type 4 at day 51 is 6.61 machine type 5 at day 68 is 1.61 machine type 6 at day 72 is 0.77 machine type 8 at day 85 is 1.26 machine type 9 at day 109 is 1.31 machine type 10 at day 52 is 0.92 machine type 11 at day 71 is 1.24 and the failure rate of the machine type 12 at day 85 is 2.15. The factors influencing on the failure rates are worker group 2 and production step 3 at the significance of 0.05.

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The purpose of this research was to study Thailand British and German cutting patterns and sewing pants for women with particular figures. The processes were composed of the developmental drafting paper pattern sewing pants and determining the satisfaction surveys. The studies were focused on women having particular pear and round shaped figures as well as the minimum amount of time to develop the cutting pants pattern design. The statistics used were mean and the tested method was performed in randomized complete 3 cutting and sewing ways for 3 types of fabrics including 95/5 polyester & wool blend 100% cotton and 100% linen. These fabrics were applied for developing 9 pants particularly for 5 pear and 5 sphere shaped women and then surveyed for their satisfactions. The results revealed that the designed pants patterns of British style was be able to be made at a short time with the average value of 44.16 minutes. Moreover 5 pear shaped women satisfied the 2nd developing type with the averaged value of 4.82 minutes whereas the other 5 sphere shaped women preferred the 1st developing type having the averaged value of 4.77 minutes. Besides both these two woman groups mostly satisfied 100% cotton pants type with the averaged value of 4.6 and 4.44.

The aim of this research is to study the varieties of weight density distribution affect to the center of mass and vehicle stability. The weight density distribution tester was designed and changed the position of mass. Base on the center of mass is main points of vehicle stability. On the other hand FMCSA standard was applied to field test for considering of the brake performance and vehicle stability. The results of research discovered to the mass distribution on horizontal plane and fixed position Y1 are absolutely influence under an increasing 50 kilograms of mass condition. For the mass distribution on longitudinal plane and fixed position Z2 and Z3 are affected to the increasing of mass 100 and 150 kilograms respectively. Otherwise under an increasing of mass 200 and 250 kilograms there is non-influence to the weight density distribution. In term of the braking performance it’s depends on the lateral mass distribution especially the center position of mass installed on longitudinal and horizontal plane and close up on the front axle (Y2). For the vehicle stability results the position (Y2) is the highest influence for yaw rate and sideslip. Otherwise the position (Y3) or the position of mass installed on longitudinal plane and nearly at the left wheel on the rear axle. Additionally wheel lock-up condition was appeared on the front axle only. Because the behavior of the weight distribution on front axle was decreased lead to mass distribution on longitudinal plane.