The Objectives of the study were to study the tourists social media exposure and their knowledge and attitudes towards cultural tourism in Bangkok Metropolitan. This research was quantitative methodology. The sample consisted of 400 tourists in Bangkok Metropolitan and used non-probability sampling by accidental random sampling. Data were collected through a questionnaire as the research instrument. The results of this study showed as follows: In terms of basic information the sample mostly travels with a family. The source of information were relatives friends acquaintances who have traveled to that location. In terms of exposure to social network the sample mostly exposed to social media via Facebook short messages via twitter online video via YouTube photo sharing via Instagram website via Wikipedia and Webboard via Pantip. The sample exposed to social media average of 1 hour during 1.00-6.59 pm. on a smartphone. The majority of the sample used social media at home searching for cultural tourism information at a high level. The highest mean is finding transportation. The sample receives cultural tourism information at a high level. The highest mean is exposure to information about arts crafts sculpture traditions and festivals. The most trustworthy social media is Youtube. The social media influence had a high level because fulfilling objectives such as tourist attraction accommodations restaurants travel etc. In terms of knowledge the sample had a high level of knowledge of cultural tourism. The area with the highest level of knowledge was increasing the diversity of cultural tourism such as heritage tourism art tourism urban culture tourism rural culture tourism creative tourism and Thai local wisdom. In terms of attitudes overall the sample gave the highest priority is security.

With the objective 1) to develop communication system operating simulation program using GUI MATLAB 2) To find the efficiency of communication system simulation program using GUI MATLAB and 3) To compare the calculation results from the developed program with the calculation results The parameters of the high frequency transmission line which were developed to be programmed Classified by type of transmission lines in the air depending on the frequency and use including two-wire transmission cables. Twin-plane transmission cables And coax signal transmission lines The program components are divided into 3 screens namely the main screen the main program screen And parameter calculation screen Systematic quality and efficiency checks by 5 experts That has specialized expertise The tools used in the research were the quality inspection evaluation form which is divided into 2 parts which are part 1 program testing and part 2 testing the statistical system used for data analysis including mean percentage and standard deviation. The research found that 1. The result of the development of communication system simulation program using GUI MATLAB with the structure of the program design Dividing operations into 3 main parts Namely the calculation of two signal transmission lines. The calculation of the twin plane transmission line program And the calculation of the coax transmission line program n each part of the program calculation there is a working principle of the program. Each part of the calculation of the program has a working principle of the program. Divided into the terms of the scope of the transmission line Calculate capacity Calculate the conductivity Calculate inductance Calculate resistance And calculate the impedance value In which all calculations can show calculation results Select the calculation of various transmission lines. The program that the research team developed The signal transmission line is divided according to the type of usage and frequency. There are 3 signal transmission lines which are two-wire transmission lines. Twin-plane transmission cables And coax signal transmission lines 2. The result of finding the efficiency of the communication system simulation program using GUI MATLAB is divided into 2 parts. Part 1 Result of the language order and ability test for all 5 sub-processes Is correct No errors in the process In which each working process is linked as designed Overall the system development can work without errors. And when evaluating system acceptance It was found that the developed program could be used as a research tool. When considering each aspect found that Design. Design standards Design quality And the structure that is not complicated design is accepted by experts As a percentage between 82% - 85% Working process sorting work process Understanding of working language is accepted by experts. As a percentage between 82% - 87% And in front of work how to work in each work Compliance with user needs is accepted by experts. As a percentage between 80% - 95% And part 2 finding the performance of the communication system simulation program using GUI MATLAB developed found that the developed program has a high level of performance (x ̅ = 4.16 S.D. = 0.35) 3. Comparison between the calculated results from the developed program and the calculated results With matching calculation results Therefore shows that The developed program can be used in place of efficient calculation by hand.

The purposes of this research were: 1) to study the personal factors of tourists in Ratchaburi Province 2) to investigate the marketing mix factors used in making a decision to buy Chock Tai Yuan textiles among tourists in Ratchaburi Province 3) to examine purchasing decision of Chock Tai Yuan textiles made by tourists in Ratchaburi Province 4) to find out a relationship between personal factors and the purchase decision of Chock Tai Yuan textiles of tourists in Ratchaburi Province and 5) to study the relationship between the marketing mix and the purchase decision of Chock Tai Yuan textiles of tourists in Ratchaburi Province. The sample was 400 tourists in Ratchaburi who decided to buy Chock Tai Yuan textiles. The instrument used in this research was questionnaire. The statistics analysis used in this study were frequency percentage mean standard deviation chi-square and Pearson’s correlation coefficient. The results showed that: 1) Most of the tourists were female whose ages ranged from 41-50 years old with a bachelors degree. They worked as government officers state enterprise employees and university employees. Their income is between 20001 - 25000 baht and their residence is located in Ratchaburi Province. 2) Tourists paid attention to the marketing mix factors with high level of attention. When considering each side of the marketing mix tourist attention from the most to the least were: products individual price process physical characteristics marketing promotion and distribution channel respectively. 3) Most of the tourists could not make a decision whether they should buy the products. When considering purchasing decisions of tourists from the most to the least they were listed as follows: types of Chock Tai Yuan textiles frequency of use objectives for purchasing decisions clothing design the average amount of money spent on clothing and frequency of purchasing decision of Chock Tai Yuan fabrics. 4) For the relationship between personal factors and purchasing decision of Chock Tai Yuan textiles among ourists in Ratchaburi Province the results showed that gender age highest education level occupation average monthly income and residency were related to purchasing decisions of Chock Tai Yuan textiles of tourists in Ratchaburi Province with statistical significance at the . 05 level and 5) There was a relationship between the marketing mix and purchasing decision of Chock Tai Yuan fabrics among tourists in Ratchaburi Province. The correlation of marketing mix factors including price distribution channel marketing promotion individual process and physical characteristics show statistical significance at the .05 level. In contrast there was no relationship between products and purchasing decision of Chock Tai Yuan textiles of tourists in Ratchaburi Province with statistical significance at the .05 level.

Objective of this research is to research intelligent hydroponic vegetable cultivation control system for farmers. This is a group of lettuce that needs acid-base (pH) and conductivity (EC) in the same system on the planting table with Dynamic Root Floating Technique System (DRFT). By using Internet of Things (IoTs) devices as sensors For controlling the on-off system of the water filling system the on-off of nutrient solution A and B as well as the water spray system to reduce the temperature at the vegetable growing table. The developed hydroponic vegetable control system can effectively replace the workers labor. Vegetables grown are of the same quality used by farmers. Therefore the developed salad cultivation system could be used as a substitute for farmers. It has an easy to use control system.

This research aimed to study the personal factors operation and effectiveness of the lunch management project in Central Special Education Center Bangkok. The comparison of the effectiveness of the lunch was based on respondents’ individual factors this study proposed guidelines for optimizing the lunch arrangements. The research group consisted of 215 parents administrators and persons in charge of lunch management of which 164 samples were divided into 140 parents and 24 administrators and responsible persons for the lunch. The research instrument was a survey questionnaire. Data were analyzed statistically by using frequency percentage mean standard deviation and one-way analysis of variance. The results of the study indicated that this sample of parents was predominantly female aged between 31 to 40 years holding a lower bachelors’ degree and having a maximum income of 10000 baht. Overall the operations of the lunch project were performed at a high level. It appeared that the raw materials had the most average followed by administration management. The personnel aspect was the least. Moreover parents’ perception towards the effectiveness of the lunch project were high. Considering each aspect ordered from the highest to the least they respectively included quantity type quality of lunch safety and health administration and favorite luncheon menus. The comparison of the effectiveness of lunch project management and the perception of parents classified by their personal factors revealed that there was a significant difference at 0.05. The found guidelines for increasing the effectiveness of the lunch projects were to provide quality food ingredients the variety of tasty and nutritious dishes and five food groups. Moreover recruited dietitians were required to cook clean disease-free and healthy food by either frying steaming boiling or grilling the food. As a result of fully utilizing nutrients students would stay fit and healthy.