The objective of this thesis was to study the ratio of the black and white sticky rice in the recipe of non-fried rice cracker (Khao-tan) to develop syrup for product topping and to study the appropriate quantity of a cashew nuts for adding in the product. To study a physical and chemical nature of the product. To study the customers satisfaction in product. Firstly the appropriate ratio of the black and white sticky rice was studied. The result was the recipe that had 80% of white sticky rice and 20% of black sticky rice was voted to be the best. For the product topping that had a combination of glucose syrup and sugar was the best. Moreover the quantity of glucose syrup and sugar on product effects the customer’s satisfaction (color smell taste texture and the overall score). For the appropriate quantity of the cashew nut the formula 2 which has a 25% of cashew nuts was voted to be the best. Comparison of which non-cashew nuts and 25% cashew nuts formula the study revealed that the 25% cashew nuts formula had more nutrition (protein fat and fiber). Microbial population count <10 cfu/g. The product is able to keep in room temperature. The customer’s satisfaction reach to 94% in 25% cashew nuts formula.

The study of the amount of the use of Wolffia Substitute for Pandanus in Thai Lod Chong dessert. The objectives of Lod chong desert Project is to study basic reeipes and The use of Wolffia Substitute for Pandanus in Thai Lod chong dessert. Used to the amount wolffia in a different 4 levels : 0% 50% 75% and 100% of the pandanus weight. The experiment is analyzed by Randomized Complete Block Design (RCBD) to evaluate the sensory quality of appearance color flavor taste texture (stickysoft) and overall preference. The sensory evaluation is scored in 9-Point Hedonic scale. There are 80 participants including teachers and third year students from foods and nutrition field who are not trained on food tasting the Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon. The study is analyzed by analysis of variance (ANOVA) and Duncan’s New Multiple Range Test (DMRT). Statistical evaluation is also used to analyze. The study finding showed that accept amount of the use of Wolffia for Pandanus in Thai Lod Chong dessert at 100% highest every aspect. The average 8.43 8.21 8.16 8.24 8.33 and 8.34 which was in much. When is analyzed by analysis of varianece and to compare different with statistical significant. Finding showed that the appearance color flavor taste texture (stickysoft) and overall were different with statistical significant (p≤0.05).

ECONOMICS VALUE ANALYSIS OF INVESTMENT POLYCYSTALLINE DIAMOND(PCD) CUTTING TOOLS BRAZING. The objective was to study the possible economic investment welding vacuum (High Vacuum Brazing Machine) Case Study JK Precision Seasons Ltd. to produce inserts with diamonds (Diamond Insert) and quality. reduce the cost of production The experiment storage costs during the production process inserts with diamond original method and process used welding machines vacuum (High Vacuum Brazing Machine) by the project matures in 10 years the life cycle of the equipment by the companys accounts. it can be concluded that the project Investment welding machines vacuum (High Vacuum Brazing Machine) is worth the investment. By comparison the production cost of current methods and using new welding machines vacuum (High Vacuum Brazing Machine) found that the cost of production when using welding machines vacuum (High Vacuum Brazing Machine) down 31 baht / piece the production process. down two steps and increased productivity in a new way. 72413 pieces / year When analyzing the cost of Economics found that the value equivalent’ contaminated current net (Net Present Value) Payback period (Payback Period) rate of return of the Project (Internal rate of Return) Previous year current net’ Baht 443902559 Baht rate of return of the project is the of 3172% summarized the’ value. The project studies the possible invest welding vacuum (High vacuum Brazing machine) is suitable for investment.

The objective of research was to study and analysis the Electric vehicle structure of Rajamangala University of Technology Phra Nakhon. The Electric vehicle designed to save energy protect environment and cognitive development of student by used the computer software help in the design Material selection Finite Element Analysis Appropriability of the Electric Vehicle Structure and di s p l a c e m e n t of the vehicle structure by using the computer program help in the calculation for the Finite Element Method including to the development of engineering skill. The research must to create the Electric vehicle prototype to suitable and the structure have lightweight and strong for the electric vehicle and focuses on energy efficiency and the material of structure used steel pipe. This research can use to other working structure and future vehicle in sustainable. The vehicle has two seats Capable of running speed to 0-80 km/h the weight at the vehicle structure not over 1 0 0 kg. And the material of structure used steel pipe. This researching can use to other working structure and future vehicle in the sustainable.

The purpose of this research is to facilitate technology of limiting excess electricity from the source before supplying to the electrical appliances. The distribution of electricity by Metropolitan Electricity Authority (MEA) frequently exceeds the needs of households and factories due to the fact that the voltage has to be enough to send electricity to users who are located further at the end of the voltage grid lines. Most electrical appliances are designed to perform at optimum voltage of 220 Volt. The voltage optimization system controls the incoming voltage to fit the optimum voltage of electrical appliances which will reduce the overheating phenomenon and thus lengthen the lives of electrical appliances. It can save 8-14% of total energy being consumed and potentially reduce CO2 emission. This analysis system can be used for industries in the range of small to large companies. From the development of remote monitoring using a control via internet or 3G/4LTE the voltage optimization system showed practical power saving results of the reduced power usage and lengthen the lives of electrical appliances; that leads to reduction of emerging electricity resource eradication of natural resources increase the chance of marketing competition and energy sustainable