This Research purposes assessment of lightning performance on transmission system 69 kV in Metropolitan Electricity Authority (MEA). The case studies illustrated the lightning strike to direct top pole in order to guideline considering the critical flashover voltage value of insulator is able to withstand it and improvement lighting protection in the future. This solution analyzes using the Alternative Transient Program-Electromagnetic Transient Program (ATP-EMTP). The result found that voltage across insulator before and after improvement lightning protection by external ground wire. Factor effect to voltage across the insulators is the tower footing resistance wave of lightning current and interval between towers. It depends on relation with front time of wave. The analysis economics is very important. This Research is studying interruption cost of outage since back flashover so analysis the break even point of the installation external ground. The result found upon improvement lightning protection by installed external ground. The pay back period of that is 9 years installed ago. This result can conclusion is external ground able reduction interruption costs of outage.

ไม่ปรากฏบทคัดย่อ

The aims of this study are (1) the adapting of women’s wear in holding inventory to a new product (2) the study of the satisfactions of women who are 25-35 years old in Bangkok about the adapted women’s wear in holding inventory. The tools for study are the questionnaires and the prototypes to accidental survey 302 women who are 25-35 years old in Bangkok and being the members from buying products of Boutique Newcity Public Co. Ltd. The fist of methods sketching of the adapted holding inventories (shirts skirts and pants) with Ruffles Godets and Transfer Printing to selection by the 5 specialists. Then adapting the top 5 selected styles. Finally surveying and analysis of the samples with percentage mean and standard deviation. The result of the study shows that most women from the sampling are single and have education in Bachelor Degree. Their occupations are in private sector with salary range between 10000 –20000 bath. Their favourite shopping place of women’s wear is department stores and buying of top 3 are pants dress and blouse. The first reason for them to buy the products is the interesting design. The overview of adapted products shows skirts are the first favourite with mean value of 3.13. Shirts are the second favourite with mean value of 3.09 and pants are the last favourite with mean value of 3.07. The conclusion of the developed women’s wear are favoured medium level.

The purposes of the research were to develop the design and the package of fabric garlands and to survey the satisfaction from the sample group towards the products. The data were collected from 14 experts and sample group of 100 people. The instruments used in collecting data was a questionnaire. And the data was analyzed by frequency percentage and standard deviation. And the findings were : 1. The third design of the product was the most suitable and interesting for the products’ development. Because the beauty and the difference of those designs gave the garlands’ diversity. 2. The packages’ design could be more appropriate in square shape the color should be cream gold in ordinary or tracery style including the color of package’s fabric lining should be in cream. 3. For the satisfaction of the target group towards the product it was found that overall they were fond of the design at the highest level having mean of 4.24. They preferred the garlands’ loveliness at the highest level having mean of 4.26. And they liked the value and the usefulness of the product at the highest level having mean of 4.29.

This Study aims to 1) study the clothing purchasing behaviors via internet medium of the teenagers and 2) study the marketing strategies in the form of internet medium for teenager clothing businesses. This is only to study the purchasing behaviors via internet medium of the 400 teenagers via facebook website. The data were collected by using sets of questionnaire and the software packages were used in data analysis. According to the results of the study of the clothing purchasing behaviors via internet medium of the teenagers most of the sample groups were female at the rate of 72.8% being aged 19-21 years at the rate of 50.8% residing in the Bangkok Metropolitan Region at the rate of 47.8% studying at the bachelor’s degree at the rate of 63.8% most of whom were students at the rate of 49.3% having income in the amount of 10001-15000 Baht at the rate of 37.8% most of whom purchased casual wears at the rate of 39.7% fashion clothes at the rate of 42.8% with the brand influencing the purchase at the rate of 26.3% each piece of the clothing was in the amount of 501-1000 Baht at the rate of 23.5% purchasing 1 time per month at the rate of 47.8% purchasing 2 pieces per time at the rate of 36.2% the sample groups ordered clothing from abroad at the rate of 55.5% paying via bank account at the rate of 54% purchasing the clothing as ready for delivery at the rate of 97.5% and the factor on marketing strategies had the average score in the high level at the rate of 3.86%.