This research aims to reduce waste in the production process to meet the target to find ways to prevent defects occurring in the curing process and to improve preventative measures available today. The waste found in the curing process label the edges are blamed blistering edge under inflated tires cover on low. After brainstorming to find factors that affect the defect by using techniques Six Sigma (Six Sigma).The work five main steps in performing a job defining the problem measuring analyzing problems improved control and severity surveillance and monitoring disorders of the process. It was found that the raw materials are the main parameters that cause much waste as possible. Therefore we have developed an approach to improve the material by adding a preliminary inspection and design documents to determine work procedures. The benefits of this research can reduce the waste that occurs in the curing process of the target by reducing the rate of 8.0 % an average of 7.3% in a survey from January to May 2557 is an average rate of 6.0% In a survey in June 2557 equivalent to saving manufacturing cost 135045 baht per month. The rate of decline is likely to be quite good that make employees feeling and effort to cooperate in the reduction of waste in the production process.

Although the recreationl service of the Makut Rommaayasaran Park Changwat Nonthaburi is considered as the non-priced social welfare it can be evaluated for the recreational value from the individual travel cost method. The objectives of this study were 1)to study the scial and economic characteristics of the tourists 2) to study factors affected the recreational visiting 3) to evaluate the recreational value of Makut rommayasaran Park Changwat Nonthaburi and 4) to evaluate the future recreational value to calculate for the present value of benefits. the data were collected by interviewing 420 sampled tourists.

The study was aimed to investigate the production of banana fiber that was suitable for decorating handicraft basketry examine its effectiveness develop decorative handicraft materials for basketry from fibrous layer on the trunk of the banana tree and promote the obtained knowledge in the community of Plasticseeroong Baanmor Promburi District Singburi Province. The research result could be summarized that the most appropriate production process of dry fibrous layer on the trunk of the banana tree mixed with fibrous layer of paper mulberry was done through mechanical process. After bleaching the mixed fibrous layer was stirred by Hollander beater with the proportion of wet fibrous layer and water at 1:40; 10% of dry of paper mulberry was boiled for three hours in sodium hydroxide at 100degree Celsius then bleached with 1.5% of hydrogen peroxide with 4% of the dry fibrous layer weight at 90 to 95 degree Celsius for two hours. The mixture of wet fibrous layer on the trunk of the banana tree with wet fibrous layer of paper mulberry was 70:30 which was considered appropriate for decorating handicraft basketry. Concerning the examination of mechanical properties of banana tree fibrous layer according to the standard of TAPPI T it was found that the folding endurance of paper value was 144 (N. m/g); the tensile strength value was 32.16 (N. m/g); the tear resistance value was 26.56 (mN.m2/g); and the bursting strength value was at 1.94 (KPa.m2/g). The fibrous layer obtained from on the trunk of the banana tree was fabricated into decorative basketry materials for example flowers palm leave hats flower key chains bags and paraffin coated flowers for bamboo boxed. The attendants’ satisfaction on the training of the production of decorative handicraft materials of basketry from fibrous layer on the trunk of the banana tree to 30 members of the community of Plasticseeroong Baanmor Promburi District Singburi Province concerning the training service speakers training procedures facilities and training benefits was at high level (90.67%) and at average level (9.33%).

In this study pH physical and microbiological qualities of clear and opaque plastic bottled drinking water produced in Buriram Province Thailand were investigated. Samples of bottled drinking water (N=22) were 8 clear plastic bottles and 14 opaque plastic bottles. Results showed that pH value of all samples were in a range of 6.04 ± 0.03 to 7.61 ± 0.01 in which 7 samples were not acceptable according to the criteria for drinking water in sealed containers declared by the Ministry of Public Health of Thailand. Coliform bacteria in all tested samples were less than 1.8 MPN/100mL and none of E. coli was detected. Therefore consumers of bottled drinking water produced from Buriram province should be aware of health safety because some drinking water products were unacceptable in terms of pH value.

Purpose of this study 1) factors affecting the drop out of Rajamangala University of Technology PhraNakhon students in 2014 academic year. 2) correlation with personal information and 3) solutions to prevent the drop out. A study population are 1179 students who have dropped out in 2014 academic year and 584 lecturers of the Rajamangala University of Technology PhraNakhon. The analysis on the students population will be carried out by computing frequency percentage and Chi-square test to observe independency between the two variables. Also conducting an interview on the 360 students and 70 lecturers of the Rajamangala University of Technology PhraNakhon. From data collecting found that majority of student population status can be put by order as terminated deprived and resigned. Gender hometown occupation of parents/guardians and income of parents/guardians show significant relation to the drop out of the students in 2014 academic year while parents marriage status show no relation with statistically significant of 0.05. From the interview it can be extracted and put in order of contribution that personal issue family issue university environment and lecturer effect the student decision to drop out. Suggested solution: the university should create unique image encourage students to have part-time job during semester set up a consulting and support center provide more financial aid adjust and improve university scenery sourcing/maintenance furniture and equipments to meet usage adequate and quality standard and finally set up a colloquiums focusing a practical application. Therefore Rajamangala University of Technology Phra Nakhon should put the result from this study into practical use as a guideline to meet future circumstance and to develop administrative strategy for maximum advantage in the competition.