The objectives of this study were to (1) evaluate physical and chemical properties of the commercial beverages from fruit and vegetable extracts (2) develop a beverage from butterfly pea and roselle extracts (3) analyze the shelf-life of this product and (4) determinate the consumer acceptance of the beverage from extracts of butterfly pea and roselle. The findings showed that the commercial beverages from fruit and vegetable extracts were clear and dark brown color 3.43-3.67 (pH) 16.50-35.00°Brix (total soluble solids) and low anthocyanin content. The optimum extraction of butterfly pea and roselle was boiling at 70+2°C and evaporation at vacuum pressure (72 millibar). This process resulted in the final anthocyanin content approximately 1366.98 and 4090.19 mg/l for butterfly pea and roselle extracts respectively. Then the butterfly pea and the roselle extracts were blended at various ratios. Based on sensory evaluators (n=50) the 50:50 blend was the most preferential with respect to overall acceptability (p≤0.05). The decrease in the anthocyanin content was observed during storage for 5 weeks. No Coliform bacteria E. coli Salmonella spp. and yeast and mould were found in all samples while the total plate counts were still accepted asconsidered for the standard set by the Ministry of Public Health. An acceptance test showed that consumers (n=100) absolutely accepted this product.

การวิเคราะห์ข้อมูลการซื้อขายซึ่งประกอบไปด้วย ราคาปิด ผลต่างของราคาปิด ผลต่างของปริมาณการซื้อขาย ผลต่างของดัชนี SETIndex NYMEX crude oil และ DJIA โดยใช้ข้อมูลที่มีช่วงเวลาเป็นวันและข้อมูลผลต่างจะใช้ข้อมูลวันที่คานวณกับข้อมูลในวันก่อนหน้านั้น ซึ่งการประยุกตใชวิธีการ K-NN (K-Nearest Neighbor) การวิเคราะหจังหวะการซื้อขายหุ้นโดยใช้การคาดการณ์จากการที่ K-NN จัดกลุ่มข้อมูลเข้ากับข้อมูลต้นแบบเพื่อพิจารณาว่าข้อมูลในวันถัดไปควรจะเป็นการขึ้นของราคาหรือไม่เพื่อประกอบการตัดสินใจซื้อขาย โดยข้อมูลที่ใช้เป็นข้อมูลในการเป็นแบบจาลอง 710 ชุด และข้อมูลในการทดสอบอีก 181 ชุด ผลจากการใช้ K-NN โดยประสิทธิภาพในการทานายจากการกาหนดค่า k = 21 สูงที่สุดจากการเลือก ค่า k ตั้งแต่ 1 ถึง 29 โดยสามารถทานายได้ถูกต้อง 107 ชุด และทานายผิด 74 ชุดข้อมูล ซึ่งประสิทธิภาพในการทานายคิดเป็นประมาณร้อยละ 59 ซึ่งใช้ประกอบการพิจารณาการซื้อขายได้

The objectives of this study were :1) to evaluate the basic information :2) to determine the operational status and problems and :3) to study the potential development guidelines for the operation of community enterprises of food processing groups in Samut Prakran Province. Samples selected by stratified random sampling technique were 112 members of community enterprises in Samut Prakran Province. These samples was drawn from the presidents of community enterprises of food processing in Samut Prakran Province which were assessed as the good level in potential operation. Data collection were done by using questionnaire technique while the data were analyzed with frequency percentage mean and standard deviation. The results revealed that the assessment of potential operation of the community enterprises of food processing groups 268 in Samut Prakran Province were at the good level of 114 the average level of 117 and the improvement level of 20. The community enterprises had strong intention to the strengthening of communities and the supportive system from the partite participation consisted of knowledge and developing budget. The overall of operational status was at a high level while the overall of operational problem was at a low level. The potential development guidelines for the operation of community enterprises of food processing groups in Samut Prakran Province were ;1) planning approach: making master plan for all sub-district ;2) organization structure approach: overall operation review with all of members ;3) personnel management approach: creating morale for work performance of personnel together ;4) marketing approach: producing products to meet market needs ;5) production approach: supporting the production knowledge by government sectors and ;6) accounting/ financial approach: making real income and expense accounts.

This research presents an Analysis of Voltage Sags on the Installation of Distributed Generation in the Distribution System. The computer program PSCAD/EMTDC (Power Systems Computer Aided Design / Electromagnetic Transient in DC system) version 4.2 is applied to provide electrical parameters for the modeling and simulation and to analyze the fault occurred which resulted in voltage sag. Test results from PSCAD/EMTDC show the values of voltage sag when 5 types of fault are occurred (Single Line to Ground Fault Double Line to Ground Fault Three Phase to Ground Fault Line to Line Fault and Three Phase Fault). For all cases the value of root mean square voltage before fault is 100% or 1.0 pu. It can be seen that for both radial line and closed circuit when DG are installed in the system the value of phase to ground RMS residual voltage and phase to phase RMS residual voltage at the bus of Bang-pa-in 2 substation are more than the values in case of the system without DG.

The purposes of this research were : 1. To study the personal factors of tourists 2. To The objective of this study was to investigate 1) personal factors of tourists 2) the decision making of purchasing One Tambon One Product (OTOP) and 3) the relationship between personal factors of tourists purchasing/ ever purchase OTOP in Nontaburi floating market and the decision making of purchasing products. Data collection were from 400 tourists in Koh Kred Floating Market Sainoi Floating Market and Wat Yaisawangarom Flaoting Market. Purposive selection used were frequency and percentage. Chi-square test and Contingency Coefficient at statistically significant level were 0.05. SPSS was used in this analysis. The result found that most tourists were women 31 - 40 years old Government officers were the most married bachelor degree and monthly income 10001 - 20000 baht. The decision making of purchasing products were from quality. Raw materials through primary processing were chosen because they were tasty. Non-alcohol drink purchase was from the benefits motivation purchase was from quality and product purchase was from indication labels. The relationship between personal factors and Thai motivation occupation related with reason of purchasing food products selling style and monthly income related with purchasing non-alcohol drinks. Educational levels related with 6 aspects except non-alcohol drinks. Marital status did not relate with purchasing One Tambon One Product in Nonthaburi Floating Market of Thai tourists at statistically significant level was 0.05.