This study developed the cemented tungsten carbide by steadily sintering at 1430 °C for one hour. The tungsten carbide structure is a long shape. Its grain size has a difference between width and length and there are high distribution of sizes and shapes. In comparison with the work piece which has the similar size of grain structure the milling duration of tungsten carbide is less even though the condition of WC-Co is the same (95% WC – 5% Co). When the sintering of 1400 °C with the identical milling duration is performed. It turned out that both grain structures of the tungsten carbide and the work piece are similar and their grain sizes are slightly different. However when the grain structures are almost the same and sphericity is increased the hardness and wear resistance will also be improved. Therefore the size of grain structure between 1.00 – 3.00 μm with the milling duration of 100 hours will provide a work piece that has a wear resistance according to international standard

The purposes of this research were: 1) To study decision to choose Tim Surm Restaurant Service. 2) To study the personal factor in consumer decision making to choose Tim Surm Restaurant Service 3) To study the relationship between personal factors of consumers and the decision to choose Tim Surm Restaurant Service in Muang District Nakhon Si Thammarat Province. 400 sample were purposive selected used The instrument were questionnaires. Frequency and percentage were calculated for test relationship Chi - square test was wed and Contingency Coefficient at statistically significant level of 0.05 computer program analysis was used to calculated data. The research study found were that most consumers ware females ages between 21 - 30 years maried status Bachelors Degree 10001 - 15000 Baht salary working as freelance /private businesses 3 - 4 members in family sample decided to choose the Tim Surm restaurant services in the product by focusing on the highest food taste value for money with food quality appropriate price with the quality of food For the place of distribution opening - closing time was significant. The marketing promotion was reducing the price of food at various festivals personnels were attentive and willing to serve customers The service was available to reserve a table in advance The physical aspect of cool air culation and enough light in the shop. Results of the hypothesis testing of personal factors for consumers are age marital status education level salary occupation and family size correlated with the decision to choose Tim Surm Restaurant Service in Muang District Nakhon Si Thammarat Province were age was correlated with the price and the services The marital status was related to the price The educational level was related to the product the place of service personnel distribution and physical aspects The salary was related to the product and the price. The occupation is related to personnel and physical aspects. The member of family correlated with the product and the price. The gender was not correlated with the decision to choose Tim Surm Restaurant Service in Muang District Nakhon Si Thammarat Province. The statistical significance at the 0.05 level.

The purposes of research were to : 1) study basic information to allow students to practice professional skills related to Home Economics program 2) study desirable characteristics of students and 3) compare the demand level students with professional skills curriculum for the Certificate of Vocational Education in Home Economics of establishment classified by type of establishment duration of operation number of employees in establishment and the number of students practicing professional skills required. The population of this study were owner or manager passed students with Curriculum for the Certificate of Vocational Education in Home Economics 103 people. The questionnaires were used as tool for data. The statistical analysis used in data analysis by using statistical computer software for a social study were frequencies distribution percentages mean standard deviation and ANOVA. The result of this research shown that : 1) that was study basic information to allow students to practice professional skills related to Home Economics program found that establishment mostly commercial which has been in business for 5-10 years with no more than 10 employees and the establishment requires 2 students 2) that was study desirable characteristics of students found that overall the demand level students with professional skills curriculum for the Certificate of Vocational Education in Home Economics in a very high level when considering each aspect and 3) which compared the demand level students with professional skills Curriculum for the Certificate of Vocational Education in Home Economics classified by type of establishment duration of operation and number of students practicing the result were not significantly different and That were comparing them individually and individually no different statistical significantly at the .05 level.

The purposes of this research were : 1) to study the general information of the respondents and marketing mix factors 2) to study on purchasing behavior of fresh flowers from the invention business of consumers in Muang District Phuket Province 3) to study on relationship between general information of respondents and purchasing behavior of fresh flowers from consumer goods business in Muang District Phuket Province and 4) to study on the relationship between marketing mix factors and buying behavior of fresh flowers from the consumer invention business in Muang District Phuket Province. Samples were consumers living in Muang District Phuket and had purchased 400 fresh flowers from the invention business in Muang District Phuket Province. The instruments used is the statistical questionnaire used in data analysis include frequency value percentage value mean value standard deviation value and Pearson Chi-square. Statistical analysis using computer program. The results showed that : 1) most of the consumers are female between 20 and 29 years old. Have a bachelors degree. Most of occupation is private business such as trade or general contractor. Average monthly income is about 20001 - 30000 Baht. Most of consumers are living in Phuket. Consumers emphasize to the factor of marketing mix. Overall and individual aspects are at a high level 2) Consumers have a reason to buy fresh flowers for use in ceremonial or important events. They choose fresh bouquet of flowers for a price range of 501 - 1000 baht. By buying about 2-3 times a year most consumers will buy red roses. Consumers often buy to congratulate others or make their own buying decisions 3) The relationship between the general information of the respondents viz sex age education level occupation income per month and habitat and behavior of buying fresh flowers from the consumer invention business in Amphoe Muang Phuket Province found that the relationship between all was statistically significant at the .05 level and 4) The relationship between marketing mix with behavior of buying fresh flowers from the consumer invention business in Amphoe Muang Phuket Province found that product price and distribution channels have relationship but Marketing promotion does not have a relationship with behavior of buying fresh flowers from the consumer invention business in Amphoe Muang Phuket Province found that the relationship between all was statistically significant at the .05 level.

The purpose of this research are to : 1) Study personal factors of tourists 2) study purchasing behavior on handcraft products of tourist 3) Study the marketing mix factors used to make a purchase decision 4) Find the relationship between personal factors and purchasing behavior 5) Comparison of the importance of marketing mixfactors used in decision making to buy handicraft products in Samut Songkhram Floating Market. The samples were 400 Thai tourists who came to visit and purchase handicraft products in Samut Songkhram Floating Market. The instruments used included: Statistical questionnaire used in data analysis viz frequency percentage mean standard deviation Pearson Chisquare t-test and ANOVA. Statistical analysis by used computer program. The finding reveal that 1) Most of the tourists are females aged 21 to 25 years old. They have a bachelors degree and most of them are students with monthly average income less than 10000 baht 2) The tourists have behavior of purchasing for handicrafts first is a metal product. The purpose or the reason to decide to buy the product is to use it yourself to purchase a product once a month. Most tourists decide to purchase immediately when they see the product. The average price is approximately 51 - 100 Baht. Tourists decide to purchase by themselves. 3) Tourists focus on the marketing mix factors used to make a purchase at the highest level and when considering each side found that there are 3levels at the highest level. Sort by descending from the average is product marketing and pricing. Tourists focus on distribution at a high level. 4) Relationship between personal factors and purchasing behavior on handicraft products of tourist Samut Songkhram Floating Market found that gender age education level occupation and monthly income were correlated with the purchas in g behavior of tourists in Samut Songkhram Floating Market at the level of 0.5. and 5) Comparison of the importance of marketing m ix factors used in decision making to buy handicraft products in Samut Songkhram Floating Market found thatgender educational levels and occupations of the tourists are important to the marketing mix used in the decision to buy handicraft products in Floating Market Samut Songkhram Province is different. The age and average income per month of different tourists are important to the marketing mix used in the decision to buy handicraft products in Floating Market Samut Songkhram Province is not different at the level of 0.05.