The purposes of this study were to compare demographics to making purchasing decisions to Japanese skincare products of female consumers in Bangkok and study the marketing communications affected the buying decision Japanese skincare products of female consumers in Bangkok. This research was the quantitative research by using questionnaires from 384 female consumers who previously purchased the product by uses the multi-stage sampling method. The data was analyzed by as frequency percentage mean standard deviation t-test statistic One-Way ANOVA and enter multiple linear regression at the statistical significance level of .05. The results showed that: most of the sample was between 25 - 34 years (35.40%) single status (68.20%) average monthly income of 10001 - 20000 baht (34.10%) education of bachelors degree (55.70%) and work in private companies (48.70%). The average monthly income education level and occupation had different decisions purchasing Japanese skincare products among female consumers with statistical significance at the .05 level. Marketing communication influence female consumers purchasing decision of Japanese skincare products with statistical significance at the .05 level were sales by individuals (29.10%) public relations (18.10%) and promotion (15.80%).

R & D PRECISION CO.LTD manufactures various types of work. Yet there were defects of work in previous working and the company was unable to deliver products to customers as required and some might have been destroyed. As the information referred to the waste detected each month from January 2014 to June 2014 it is found that the volume of defect rate was 9.56 percent resulting in losing cost of production and other business opportunities. This research aims to reduce waste in the production of high precision with lean concepts. The study starts from the analysis of employees working information by creating a value stream mapping. The study found that cylindrical grinding takes the longest time. Then the study explored and determined the root cause of the problem by using a Pareto Diagram together with a Fish-Bone Diagram to analyze the minor causes. It is found that most wastes are caused by measuring control especially for the work that has a shaft hole with thickness of 2.25 mm. Thus the study and experiment were conducted to determine the flow rate of the coolant for the work piece in the cylindrical grinding machine and a fixed value is the rate of decreasing the size of work speed of stone wheel and work type of coolant and type of grinding stones. The goal is to reduce waste by not less than five percent and to improve the process of reducing waste effectively which will affect the environment having lesser wastes from production. It also supports competitiveness and rapid change of industry manufacturing highprecision parts in the future even better.

รายงานการวิจัยฉบับนี้จัดทำขึ้นเพื่อประกอบการดำเนินงานตามโครงการวิจัยพัฒนาและเผยแพร่ผลิตภัณฑ์ของขวัญของที่ระลึกจากกระดาษสา งบประมาณประจำปี 2548 โดยมีวัตถุประสงค์เพื่อเผยแพร่ความรู้และทักษะการประดิษฐ์ของขวัญของที่ระลึกจากกระดาษสาจำนวน 4 ชนิดผลิตภัณฑ์ ได้แก่ สวนถาดสวนแก้ว ดอกไม้ประดิษฐ์ ต้นกระบองเพชร และพานพุ่ม เพื่อเสริมสร้างรายได้ และส่งเสริมเศรษฐกิจแก่ชุมชน