In this work solar erythemal ultraviolet radiation (EUV) which affects human skin and skin cancer was investigated at Songkhla province (7.2°N 100.6°E). EUV was converted to UV index then the data was used for model development and forecasting of hourly UV index using Artificial Neural Network (ANN). The ANN model has one input layer two hidden layers and one output layer. This input layer consists of extraterrestrial erythemal ultraviolet radiation solar zenith angle aerosol optical depth and cloud index which affect ultraviolet radiation and the output layer is hourly UV index. The results show that hourly UV index obtained from ANN and that from the measurement are in reasonable agreement with root mean square difference of 12.8% and mean bias difference of -2.4%. For forecasting of the hourly UV index the data for 7 days earlier was used for forecasting the next UV index for one day or nine-hour (08:00 am.-16:00 pm.). Multi-layer perceptron and back propagation algorithm were used in the model forecasting. The results show that the UV index from the model forecasting is reasonable agrees with UV index from measurement with root mean square difference of 17.0% and mean bias difference of 0.3%.

Study of Natural Dye from Golden Shower Pod for Development of UV Protection on Textile Product aimed to examine natural dyes obtained from Golden Shower Pod to produce naturally dyed fabrics as products. According to the research it was found that cationic additives which were soaked in a ratio of 20 grams per liter and boiled at 100 degrees Celsius for 20 minutes could help enhance the intensity of fabric dyes and the mordant used in this research which was soaked after dying was copper (ll) sulfate at concentration of 10 grams per liter for 30 minutes. According to appropriate tests the value of ultraviolet rays was excellent the dye fastness to artificial sunlight was moderate the abrasion was very good the dye fastness to acidic perspiration was good the dye fastness to alkaline perspiration was less and the dye fastness to water was good. According to the questionnaires returned it was found that the sample was interested in knitted apparel products most demands in the shade were darker tones and the apparel design concept chosen was mini dress with 1960s vintage style by matching dark and light brown of natural dyes of Koon pods. According to the assessment of satisfaction towards the products made from UV-resistant fabrics it was found that the form of products that are suitable to wear everyday was highest (58 percent) the form of the products that are appropriate for women in the age range 20-30 years was highest (66 percent) the arrangement of light - dark dyes of fabrics was highest (42 percent) the appropriateness of colors of embroidery threads was highest (58 percent) the appropriate relationship between patterns colors of embroidery threads and colors of fabrics was highest (76 percent) the appropriate placement of patterns was highest (40 percent) the appropriate size of patterns was highest (48 percent) the appropriate rhythm and continuity of patterns was highest (36 percent) the overall usability of products made from natural dyes that can block ultraviolet radiation was highest (82 percent) the appropriate relationship between embroidery patterns materials and fabrics was highest (12 percent) and the products (apparel) that can be worn at any occasion was highest (52 percent).