The summary of females living in Bangkok was as follows: results from the research shows that out of the 400 participants a large proportion were aged between 23 - 30 year’s old who held a Bachelor’s degree and worked in private sector earning approximately between 10000 to 18000 THB per month. If purchased through a sales person a customer has the privilege to compare products and make informed decision. Also if products are on sale the customer may buy extra items and pay at the counter (otherwise it is purchased through online stores for example: Lazada). The overall participants who decided to purchase lingerie were also at a somewhat moderate level. Participants who decided to purchase lingerie were found to place the most importance on the sales person and the level of service they received. As it’s expected all participants differ in terms of their age education occupation and income. In terms of buying patterns education was the factor with the most influence in correlation with the initial hypothesis. However in terms of other factors such as age occupation and income the differences in these groups and the impact upon their buying habits which deviated from the initial hypothesis. In terms of IMC age was the factor most affected by the use of it in correlation with the initial hypothesis. Other factors such as education occupation and income which again differed from the initial hypothesis. The factors of IMC that relate to advertising are the salesperson themselves; the service they provide to their customers sales promotions special events to promote the product and direct selling. These factors affect the behavior and buying decisions of women’s lingerie which is in accordance with the hypothesis.

This research presents a study about extrudate swell properties of high density polyethylene melts in annular die extruded in a capillary rheometer through 3 types of annular die: normal annular die convergent annular die and divergent annular die. Each type of die had a die gap of 1mm 1.5 mm and 2 mm respectively. Results of the experiment showed that extrudate swell of high density polyethylene melts occurred in both diameter swell and thickness swell ratio. The swell measured in all 3 types of die tended to be higher with the increase of shear rate and the decrease of 2 mm 1.5 mm to 1 mm die gap by an average of 12%. This occurrence could be explained from measurement of flow properties in all 3 types of die which had increasing shear stress due to the decrease of die gap by an average of 10%. Moreover it was also found that the thickness swell ratio was higher than the diameter swell by an average of 45% in all sizes of die gap. This could be explained from the Stress distribution which was more dense at the mandrels surface when the die gap of annular die decreased.

The damaged propeller shafts caused by the fatigue failure will be repaired by shield metal arc welding process. The service life dependeds on fatigue endurance limit of welding surface. This study was aimed to compare the fatigue resistance of two types of hard facing electrodes using the same arc welding repair process. The investigation of fatigue stress at 517 MPa in failure criteria showed that the propeller shafts repair by Flux core arc welding Process using electrode grade E110T5-K4H4 provided the approximate same service life as that using electrode grade X111-T5-K4 but lowered the repair costs up to thirty-five bath per kilogram electrode. As a result the total maintenance cost decrease 68250 baht per year.