The objective of this research is to preparation of dye powder from natural dyes. The conditions of preparation of dye powder and properties of natural dye powder were studied. The natural dyes were used in this research containing of Lac Ebony heart wood Sappan heart wood Turmeric and dried Butterfly pea. The natural dyes powder were prepared by three methods; oven drying salt adsorption and salting out. The natural dyes powder were dyed on silk fabric and then characterized by colour strength (K/S) washing fastness and light fastness. The results showed that the dye powder from dried Butterfly pea could not be prepared by dye powder preparation used in this research because of the dye power was not stable. The dyes powder from Lac Ebony heart wood Sappan heart wood and Turmeric were prepared by all three methods. The oven drying and salting out methods showed higher K/S than salt adsorption method. And the K/S of dyes powder from oven drying and salting out methods were not significant. In the oven drying method showed good K/S on silk fabric dyed from the turmeric dye powder. And salting out method showed good K/S on silk fabrics dyed from Lac Ebony heart wood and Sappan heart wood dyes powder. The different dye powder preparation methods did not effect on the colour appearance. The washing fastness of dyed silk fabric from different preparation methods were not significant. The dye powder of Lac Ebony heart wood Sappan heart wood showed good light fastness and the Turmeric dye powder showed poor light fastness on silk fabric.

The first purpose of this research is to study the using of personnel management system of Rajamagala University of Technology Phranakhon. Secondly the satisfaction in system using is suggested. The investigation and gathering information from university workers are done by questionnaire of satisfaction. The information is evaluated by using frequency percentage mean and standard deviation term. The reliability of two samples is tested by t-test using Alpha Coefficient of Cronbach and the reliability of more than two samples is tested by One Way Analysis of Variance. The results showed that the efficiency of using the personnel management system is the same as the system which is used in division of personnel management administration and division of general administration. The setting manual and log out of system which used in sub-system of each role are consistent with research hypothesis. The analysis of satisfaction of all workers between sexes (male and female) and between duties (support and academic staff) showed that the satisfaction in personnel management system is at high level. The university plan to develop the system continuously to face the changing and the present.

Design and development of solar cells in electric vehicle prototype intended to Design and development of solar cells in electric vehicle prototype Case study electric cars of Rajamangala University of Technology Phra Nakhon. The research process begins with the solar experiment model Solar Thin Film a bent size 19.2 x 9.5 cm technology has applications in Unmanned Aerial Vehicle install to a source of clean electricity generation using 80 Solar Thin Film Cells controlled by Arduino mega size 101.52x 53.3 mm Programming software by Arduino-1.6.9-Windows and Show the result at LCD Solar Monitor Charger from batteries store the electrical energy size 12V/28AH 6 pack for the results showed that such a circuit can charge electricity 5A to 1 hour and to expand the use of rechargeable battery electric prototype instead of using electric vehicle prototype from charging normally Requires 480 Solar Thin Film Cells in trial period hypothesis 6 hour/day. In term of investment evaluation simple payback period is expected to be 4 years. Considering sensitivity analysis it is found that the most sensitive factor is electricity cost cost Solar Thin Film and the cost of Evlink Fast Charge Solution respectively. The results of this study can be used to support decision making in design and development of electric vehicle prototype in the next generation more efficiently

This special project is the application of creating evening dress from Kimono using Thai silk. There are 5 factors which can lead to the goal of this project and it can be done by verifying the satisfactory of people to the product of this project. The number of surveys was randomly taken from 120 people at the age of 20-40 with the combination of students and lecturers from the Faculty of Humanities Programme in Japanese at Srinakarinwirot University. After that the result was taken to calculate the probability which is shown below: There are three types of Thai silks that were used for the survey such as Pha Lai Nam Lai Pha Jhok and Sinh Muk. The results from the survey show that the satisfaction of people to the product which were females are about 73.33%. However the group of female at the age of 21-23 was approximately at 53.33%. Furthermore there were about 97.5% and 96.67% to be singles and students respectively. As the result of this the mean satisfaction of this product was 4.21. Finally the result from calculating the mean of each factors in this product it was found that the beauty the fact that it can be worn overall pattern and the materials used in this product was 4.24 4.23 4.19 and 4.12 respectively

The purpose of this research is to study the marketing communication towards buying decision of single house in Bangkok metropolitan region. The Research involves in studying behavior of customers who plan to purchase their new houses within 3 years. The mixed research methodology is used in this research which quantitative research methodology is a primary and qualitative research methodology is supportive. The research reveals that the simple group has planned to purchase their new houses within 3 years. Demographic characteristics which are gender age marital status number of family members of children education level home town occupation and income have no effect on single house buying decision. Moreover advertising sale promotion and Public Relation highly effect on the decision making; however direct marketing communication point of purchase communication and personal selling did not do so.