The objective of this research is to study the combustion characteristic of a low-pressure vertical port burner using computational fluid dynamics (CFD). The simulation model was created using Fluent 6.3 in 3D-model of the same size of the burner. The CFD results were verified by measuring the temperature around the burner head and a vessel. Moreover the results of conventional vertical port burner having the swirl angle of 90o and the inclination angle of 90o (CB-S90I90) and two swirl port burners (SB) being SB-S90I13 and SB-S30I90 were compared. The temperatures obtained from CFD and experiments were similar which the error was less than 9%. From the CFD’s results the temperature and heat flux of the SB-S90I13 burner were higher than those of the CB-S90I90 burner. The maximum temperature and heat flux of SB-S90I13 burner were 1445 K and 5291 W/m2 respectively. It was implied that the combustion characteristic and heat transfer to the vessel of SB-S90I13 burner was better than that of CB-S90I90 burner. It was resulted that the thermal efficiency of SB-S90I13 burner was better than that of CB-S90I90 burner which was the percentage energy saving of 6.93%.

The purpose of this study is to study the 1) Demographic factors affecting the knowledge about the sufficiency economy philosophy of those employed persons in Bangkok. 2) Demographic factors affecting the use of sufficiency economy philosophy in the life of the person employed in Bangkok. 3) The relationship between knowledge about sufficiency economy philosophy and the use of sufficiency economy philosophy in the life of the employed persons in Bangkok. The samples in this research were 540 the employed persons in Bangkok selected by multistage random sampling. The research instrument was test with 10 items and questionnaires of rating scales with 30 items. The statistics used to analyze the data including the number and percentage mean standard deviation t - test for independent sample One-Way ANOVA Scheffe’s test analysis and simple correlation coefficients were statistical method to analyze data. The research found that: 1) Most of the respondents were female aged less than 35 years single status education level Bachelors degree career employees to a private company. The average monthly income of less than 35000 baht Hometown Central region. Have knowledge of the sufficiency economy philosophy at a moderate level. The sufficiency economy philosophy is applied to life at a high level. 2) Demographic factors affecting knowledge of the sufficiency economy philosophy include gender age education level occupation and average monthly income. Comparison results vary statistically significantly at a significant level of 0.05. 3) Demographic factors affecting the use of sufficiency economy philosophy in the life of those employed in Bangkok include gender age marital status education level occupation and average monthly income. Comparison results vary statistically significantly at a significant level of 0.05 4) The relationship between knowledge about sufficiency economy philosophy and the use of sufficiency economy philosophy in the life of the employed persons in Bangkok. There was a relationship that was not statistically significant. At a significance level 0.05

This research studies the basic project design and development of products from decorative Mauhom fabric. To environmental sustainability Of fabric form of the Mauhom store Thung Hong Phrae which aims to study theories about the identity and the identity of the province and the study of wisdom. The fabric Mauhom store Thung Hong Phrae to develop and promote products from decorative pots rag Horm waste from sewing. Environmental sustainability Of fabric stores Mauhom fabric Ban Thung Hong Phrae and product design and development from a Mauhom fabric the identity and the identity of the province. And industry standard The usable in everyday life. And export to the international market have had to carry out research by gathering information by reviewing the documents literary theory to guide the creation of the research. Creating a variable indicators include guidelines for conducting research on theory and research-related education. Explore the area of the store. And the manufacture of products from fabric scraps leftover Mauhom fabric. Ban Thung Hong Phrae Province as a case study. The variables in the design of the physical characteristics of the product design fabric Mauhom. The researchers then used the method of segmenting specific examples. Characterized by a separate group of qualified individuals who make a difference in the perception of the product form a decorative Mauhom fabric of the media reflects the uniqueness and identity. Phrae by a combination of modern style to modern design. And selecting a sample To find a representative sample of both groups. The group has a background in art to represent a group of 100 people who have been in the arts. The sampling in this group were selected using simple random sampling (Simple Random Sampling) by selecting a sample of students in the field of design. Then using a table of random numbers The sample has reached the required number. And that there is no basis for artistic research of 100 people by means of random sampling quota (Quota Sampling) to obtain the desired characteristics of the sample. Then accidental sampling (Accidental Sampling) to the full amount required at the point of data collection. The result is Both male and female respondents with a similar number. Most are employed an average age of 32 years the average income of 28000 baht respondents currently use a product developed by a very small Mauhom. Use some products Since the majority opinion that products from fabric pot without conventional Horm beautiful. And see if the product from a Mauhom is designed to provide a decorative functional and modern style more. Demand for products with a decorative fabric production. Doormat or in a furnished room. Lamps and picture frames from the dye pot Horm is patterned and multicolored rag has to be fabricated into various forms. And a bag of chips led by versatile tie dye pot comes Horm. Respondents commented on the color component to fall but the colors are appropriate in the design and development of products from fabric Mauhom. Opinion that the design of decorative fabric Hom pot should have a fabric material. And metal components Treatment should be decorated with embroidered and decorated by hand. Using stainless steel and wood structure. Designed to resemble the geometry to facilitate the production and standard shapes can be used to fine finishing to finishing it. Contemporary style designed to have an opinion of consumers and manufacturers are of the opinion that it is in the same form in the product. The variance from the Statistical Product 1 has different products and 2 are different products 3 products including the two have differences with 3 significant at 0.05 number. 3. Topics include the right shape the right of patterned woven from dyed. The suitability of the paint used on the products one is different with 2nd and 3rd. Significant at 0.05 Number 1 are beautiful and there is a difference of 3 topics including the appropriateness of the portion size the appropriateness of the materials used as components the appropriate functional analysis assessment. satisfaction of consumers with products of home furnishings. From a pot of fabric stores Mauhom Ban Thung Hong pot Phrae seen that overall consumer satisfaction with the product is quite good. The analysis assessed consumer satisfaction with products decorative fabric Mauhom. Shows that overall consumer satisfaction with the product is quite good. The clause in the satisfaction level of all products as well.

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 individual factors of consumers in Chonburi Province 2) to investigate the marketing mix factors used for purchasing decisions of traditional Chinese pastry cake products of consumers in Chonburi Province 3) to find out the purchase decisions of traditional Chinese pastry cake products of consumers in Chonburi Province 4) to examine factors affecting the purchase decisions of traditional Chinese pastry cake products of consumers in Chonburi Province and 5) to establish guidelines for the development of Chinese pastry cake products for consumers in Chonburi Province. The sample in this study included 400 consumers in Chonburi who chose to buy Chinese pastry cake products and 7 business owners who sold Chinese pastry cake products. The research instruments consisted of questionnaires and interviews. The data were analyzed by using statistical analyses: frequency percentage mean standard deviation chi-square and descriptive data analysis. The results can be summarized as follows: 1) Most of the consumers were female between the age of 31-40 running a private business with an average monthly income of 20001 - 30000 baht and 74% of the study sample reside in Chonburi Province. 2) Overall consumers’ attention for the marketing mix was at a high level. When considering each aspect of the marketing mix factors the results reported that customers’ attention for the marketing mix from the most to the least: location individual price customer service marketing promotion and products. 3) The consumers purchased pastries as gifts or souvenirs for other people. Most of them bought a mix of golden bean paste pie and pumpkin in syrup once a month (3 - 4 pieces about 201 - 500 baht each time). Most consumers bought those desserts for themselves. 4) Factors affecting Chonburi consumers’ purchase decisions for Chinese pastry cake products were as follows: 4.1) The individual factors affecting consumer’s purchase decisions involved gender age occupation and average monthly income. Those factors affected the purchase decisions of Chinese pastry cake products of consumers in Chonburi Province with statistically significant differences at the .05 level. The residence of the consumers however did not result in purchasing decisions of Chinese pastry cake products at the .05 level of significance. 4.2) Marketing mix factors affecting consumers’ purchasing behavior included products price distribution marketing promotion personal factors location and service with significant results at the .05 level. In addition to the guidelines on how to develop Chinese pastry cake products for consumers in Chonburi Province the business owners should improve the pastries to attract market demand. Packaging improvement should be a combination of modern and traditional styles. The price should be various based on the types of products. Also developing distribution channels through social media and the decoration of attractive storefronts with Chinese themes should be implemented. Moreover there should be advertising through social media. Employees should be trained on the product and customer service knowledge. The store must be easily accessible to common people using public transportation. The shop owners should focus on the quality of the customer service and customer satisfaction enhancement.