The purposes of this research were to 1) investigate the history of Chinese settlement in Phuket 2) examine the culture of Yaya clothing and stitched women’s shoes 3) study the pattern of Yaya clothing and stitched women’s shoes and 4) analyze the suitability of the city circumstance and clothing. The researcher studied the document and the pictures and collected the data by using Non-Participant Observation to observe the behavior of Chinese Violet (Yaya) clothing and stitched women’s shoes in Mueng district Phuket province and conduct in-depth interview with 8 field specialists. Snowball sampling was used to select key informant. Data were analyzed by descriptive analysis. The results were found that during the reign of King Rama III and King Rama V Hokkien Chinese from Southern and Eastern China migrated to Phuket by the junk boat. Mining is the major source of income of Chinese in Phuket others are merchandising fishing and agriculture. Most of Chinese got married with other local Thai people. We call them “Baba” for the people of mixed Thai and Chinese heritage. For the culture of Yaya clothing and stitched women’s shoes in Mueng district Phuket province it was found that in the previous days the daily women clothing was the straight- point collar shirt with pleated sleeves and Pateh skirt. In the auspicious occasions women wore long evening gowns and made a high hair bun. Later wearing a long evening gown was adapted to be the short one according to the weather and circumstance and for better movement; Yaya shirt became popular because of its ventilation. Yaya clothing and stitched women’s shoes were designed into various patterns such as animals flowers and plants and nature. Stitched women’s shoes were made from laces or beads. The stitch pattern meant good luck and propitiousness. Both Yaya clothing and stitched women’s shoes were designed by the owners and inherited from generation to generation. For the result of the study about the suitability of the city circumstance and clothing it was found that Yaya clothing is beautiful and unique; however it is not suitable to wear in daily life because it is too thin and easily torn. At present Phuket people cannot stitch the shoes themselves and they have to import them from Penang and Melaka with high price; consequently it is not popular whil high heeled shoes are more popular. Anyway Yaya clothing is conserved and restored to express its uniqueness and it is the strength of Phuket’s tourist attraction. Yaya clothing is back and adapted to changing society culture and circumstance.

This study is to determine guideline to reduce carbon footprint for organization of medium and small hotels in Thailand using the Carbon Footprint for Organization (CFO) according to Thailand Greenhouse Gas Management Organization (Public Organization). Conducting with 2 represented medium and small hotels the results showed that the overall carbon footprint average of 2013 was 553t.Co2-e. Considering concentration index by number of guestrooms the carbon footprint was 18.81 kg.Co2e/room-night 221.16 kg.Co2-e/m2 by total floor area and 11.65kg.Co2- e/personby guest. The dominant source of carbon footprint was use of electricity 465t.Co2-e(83.06%). Base on this assessment to use of air conditioning was 60.09 % water heater 17.64 % lighting equipment 15.05 % and other 7.22 % of total electricity used. Therefore guidelines for carbon footprint reducing of the representative hotel were to use technology to reduce electricity consumption for air conditioning water heater and lighting respectively. Based Approach to Reducing Carbon Footprint found that small and medium sized hotels can reduce emissions per year 24.87 t.CO2-e representing the ability to reduce greenhouse gas emissions by up to 4.49% or financial projections be able to save money 171.202 baht per year.

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.

The effects of plant growth regulators alone or in combination on Hexachlorocyclohexane (HCH) phytotoxicity were studied. Waxy corn seeds were immersed in different plant growth regulators that are 1) 2 mg/l Indolebutyric acid (IBA) 2) 2 mg/l Thidiazuron (TDZ) 3) 2 mg/l Gibberellic acid (GA3) 4) 1 mg/l IBA + 1 mg/l TDZ 5) 1 mg/l TDZ + 1 mg/l GA3 and 6) 1 mg/l IBA + 1 mg/l GA3 then sawn in 30 mg/kg HCH-contaminated soil or non-contaminated soil for 10 days. All plant growth regulators could enhance shoot and root dried weight of waxy corn seedlings in non-contaminated soil. Only 2 mg/l GA3 could enhance root length of waxy corn seedlings in non-contaminated soil. In HCH-contaminated soil only 2 mg/l TDZ could increase shoot dried weight of waxy corn seedlings. Also 2 mg/l IBA or 1 mg/l IBA and1 mg/l GA3 could increase root fresh weight of waxy corn seedlings. The exposure with HCH in soil did not affect to shoot and root tissue even though the growth of shoot and root were inhibited. However the exposure with HCH and receive exogenous plant growth regulator induced aerenchyma formation in cortex and pith of waxy corn root.

The objective of this research is to study how rotation speeds affect mechanical properties with friction welding between semi-solid metal 7075 aluminum alloys and semi-solid metal 356 aluminum alloys. The factor of interest is rotation speeds with different conditions at 800 1000 1200 1400 and 1600 rpm respectively. 1.8 millimeter for burn of length 30 seconds for welding time and clockwise rotation are set as a control constant condition for the entire experiment. After friction welding we found that different rotation speeds significantly affected mechanical properties of these alloys. At rotation speed 1400 rpm the maximum tensile strength is 122.24 MPa and the maximum hardness in welded zone is 140.5 HV. The microstructure size is 2.250 µm long and 2.144 µm wide. Its size in welded zone is practically small because of friction force. Moreover this friction force causes the mixture of MgZn2 and Mg2Si in welded zone.