In this research the design of plasmonics interference using micro PANDA ring resonator as the source of single photon and entangled photon generation from the four-wave mixing process was studied. The coincidence of photons from Hong Ou Mandel effect between a wave guide and a micro PANDA ring resonator layer was detected. The whispering gallery mode of interference at the central top inducing the plasmonics signals at the outer nano gold coating PANDA layer was used to analyze from micro particles. Its quality factor was found at 106 of order magnitude and became appropriately to apply this plasmonics interference to be biosensor.

This research aimed to investigate the suitable method to product osmotically dehydrated banana peels and determine its shelf life as well as consumer acceptation. It was found that the proper method was the slow osmotic dehydration process with 30 40 and 50% of syrup (sucrose solution). This method led to the highest appearance color and flavor scores as accessed by the consumer. Therefore the slow osmotic dehydration process was selected for further study relating to the ratio between salt and malic acid (3:2 3:3 and 2:3 of syrup weight). The result show that no differences in appearance color flavor and texture scores were found among treatments however the sample treated with salt and malic acid in the ratio of 3:3 obtained the highest taste score. Thus the suitable process to produce the osmotically dehydrated banana peels was slow process with salt and malic in the ratio 3:3. According to the shelf life study the sample (100g) packed in metallic foil still compiled with Thai community standard of fruit and vegetable products during 12 weeks of storage under 25-30 °C. In addition the consumers also accepted the selected osmotically banana peel product.

The purposes of this research were to assess the combined phytotoxicity of glyphosate and carbendazim which were normally used as herbicide and fungicide contaminated in soil as 100 – 1000 mg/kg on seedling growth of ridge gourd. Both of glyphosate and carbendazim were toxic to shoot and root growth of ridge gourd seedlings. The 50% effective concentration (EC50) on shoot length root length root fresh weight and shoot dried weight of ridge gourd seedlings for glyphosate were 669.4 413.0 574.5 and 241.4 mg/kg respectively whereas for carbendazim were >1000 357.8 >1000 and 71.4 mg/kg respectively. Co-contamination between glyphosate and carbendazim seemed to be antagonistic effect. Both of glyphosate and carbendazim at all concentration were not toxic to chlorophyll content in cotyledon of ridge gourd seedlings.

The research aimed to analyze and compare contents of accumulated residue of chlorpyrifos chromium lead and cadmium in five varieties of vegetables in Loei River Loei Province. Five varieties of vegetables such as Vegetable fern (Diplazium esculentum Limnocharis flava (L.)) Limnocharis flava (L.) Buch Lasia spinosa (L.) Thwaites swamp cabbge (Ipomoea aquatica Forsk) and water mimosa (Neptunia oleracea Lour.) were collected during winter summer and rainy seasons from Phu Luang Mueang Loei and Chiang Khan District. Chlorpyrifos was analyzed by high performance liquid chromatography (HPLC). The results showed that the highest chlorpyrifos contents were found in vegetables in winter and summer season in the amount of 0.04±0.00 mg/kg. Analysis of all three heavy metals were carried out dry ashing at 500C and acid digestion with nitric acid prior to analyzing by flame atomic absorption spectrophotometry (FAAS). The results showed that cadmium accumulation in the highest content among all metals in water mimosa (Neptunia oleracea Lour.) in summer season from Phu Luang District (1.83±0.01 mg/kg). The second highest metal content was lead which has found in swamp cabbge (Ipomoea aquatica Forsk) in summer from Mueang Loei District (1.40±0.08 mg/kg). chromium showed the lowest content in Limnocharis flava (L.) Buch in winter from Mueang Loei District (0.47±0.04 mg/kg). The contents of chlorpyrifos and heavy metals were not exceed the legal limits set by International Standard Food and Ministry of Republic Health No.98 of Thailand except Ipomoea aquatica Forsk which collected in summer that showed the lead content higher than the legal limits.

The Purposes of this research were to study demographic characteristics and marketing communications toward Bike for Dad participation in Bangkok on December 11 2015. A total of 99999 people registered to join this cycling event in 11 areas throughout Bangkok. This is a quantitative research so that questionnaire is applied to 400 people in 6 event area in Bangkok. The research revealed that most of the respondents were female whose age was 36-59 years old and marital status was single. They were employees of private companies that had income THB 10000 – 20000. In marketing communications the research found that public relations and event promotion appeared to have a positive impact on the participation of Bike for Dad in Bangkok. Namely public relations and promotional. Finding also indicates that there are 5 significant results of people to participate in the event: constancy congruity cooperation constitution and cycling. In term of practical contributions this study provides a useful marketing communication idea for Bike for Dad in Bangkok. In the light of the results state agency can utilize these findings for strategic planning of marketing communication in Bike for Dad or other relevant activities in the future.