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Songkhla, Thailand

Songkhla Rajabhat University or SKRU is a Thai public university under the Rajabhat University system. The campus is in Songkhla Province, south Thailand.Songkhla Rajabhat University contains seven faculties: Arts, Agricultural Technology, Education, Humanities and Social Science, Industrial Technology, Management Science, and Science and Technology. Wikipedia.


Thanuthong T.,Deakin University | Thanuthong T.,Songkhla Rajabhat University | Francis D.S.,Australian Institute of Marine Science | Senadheera S.D.,Deakin University | And 3 more authors.
Aquaculture | Year: 2011

The aim of this study was to evaluate the effects of varying total amounts of dietary C 18 PUFA on growth performance and tissue fatty acid composition in rainbow trout (Oncorhynchus mykiss). The experimental feeding trial was implemented over an entire grow-out period with a subsequent finishing period up to commercial size. Overall performance was unaffected by the dietary treatments, whilst fillet fatty acid make-up was mirroring that of the diet. The different dietary C 18 PUFA levels had different effects on the fillet fatty acid productive value (i.e. fatty acid retention rates) during the grow-out and finishing periods. Specifically, during the grow-out period, diets rich in C 18 PUFA resulted in increased n-3 LC-PUFA content in fish fillets. However, from an n-3 LC-PUFA restorative viewpoint, during the subsequent finishing period, the high C 18 PUFA content of fillets of fish previously fed with high C 18 PUFA diets was detrimental to the success of the finishing strategy. Therefore, depending on the strategy to be implemented (maximal fatty acid bioconversion or a fish oil restorative period), dietary C 18 PUFA inclusion can be viewed from both a positive or a negative perspective. © 2011 Elsevier B.V. Source


Sangchay W.,Songkhla Rajabhat University
Digest Journal of Nanomaterials and Biostructures | Year: 2014

Fe doped TiO2thin films coatings on glass fiber have been prepared by the sol-gel method and calcined at 500 °C for 2 h with a heating rate of 10 °C/min. The thin films were characterized by XRD, SEM, AFM, photocatalytic activity was determined by means of degradation of methylene blue (MB) solution and antibacterial activity was evaluated by the inactivation of Escherichia coli (E. coli) bacteria. The antibacterial activity against E. coli, has been studied applying the so called antibacterial drop test. The bactericidal activity for the above bacteria cells was estimated by relative number of bacteria survived calculated from the number of viable cells which form colonies on the nutrient agar plates. The results show that the thin films exhibited a high antibacterial activity, which was enhanced with the increase of Fe dopant concentration. With the highest dopant concentration investigated in this experiment (TiO2doped Fe with 5 mol% condition) the thin films show antibacterial activity of 97.78% under UV irradiation for 40 min. © 2014, Inst Materials Physics. All rights reserved. Source


Sangchay W.,Songkhla Rajabhat University
Advanced Materials Research | Year: 2013

TiO2 powders were prepared by sol-gel method. The prepared powders were synthesized at the temperature of 500 °C to 700 °C for 2 h with a heating rate of 10 °C/min. The characterizations of synthesized powders were characterized by XRD and SEM. Finally, photocatalytic activity was evaluated by UV-vis spectrophotometer compared with commercial P25. The results show all samples have the agglomeration. It was found that the effect of calcinations temperature on phase transformation, crystallite size, morphology and photocatalytic activity of the synthesized powders. It can be note that TiO2 powders show highes of photocatalytic activity more than P25 and calcined at 700 °C were found to give the highest photocatalytic efficiency (82%) under UV irradiation 6 h. © (2013) Trans Tech Publications, Switzerland. Source


Sangchay W.,Songkhla Rajabhat University
Advanced Materials Research | Year: 2013

TiO2 powders were prepared by sol-gel method. The prepared powders were synthesized at the temperature of 200 °C to 700 °C for 2 h with a heating rate of 10 °C/min. The characterizations of synthesized powders were characterized by XRD and SEM. Finally, photocatalytic activity was evaluated by UV-vis spectrophotometer. The results show all samples have the agglomeration. It was found that the effect of calcinations temperature on phase transformation, crystallite size, morphology and photocatalytic activity of the synthesized powders. It can be note that TiO2 powders calcined at 700 °C were found to give the highest photocatalytic efficiency (81.7%) under UV irradiation. © (2013) Trans Tech Publications, Switzerland. Source


Wayakron Phetphaisit C.,Naresuan University | Bumee R.,Naresuan University | Namahoot J.,Naresuan University | Ruamcharoen J.,Prince of Songkla University | Ruamcharoen P.,Songkhla Rajabhat University
International Journal of Adhesion and Adhesives | Year: 2013

Polyester polyurethane elastomer adhesives were prepared from hydroxyl liquid natural rubber and modified poly(ethylene terephthalate) with polymeric MDI. The starting materials and PU adducts were characterized by FT-IR in transition and ATR modes. The effect of the amount of hydroxyl groups on modified rubber, types of modified PET, and NCO/OH ratios were studied by wood-to-wood adhesion shear strength. The chemical resistance and green strength of PU adhesives were also analyzed by lab shear test. It was found that the synthesized carboxyl terminated PET and modified rubber contained 50% hydroxyl content with polymeric MDI in optimized NCO/OH molar ratio (0.45:0.55:0.75 by mole) presented the highest wood adhesive shear strength and chemical resistance, and present 83% of its maximum strength within only 12 h. © 2012 Elsevier Ltd. All rights reserved. Source

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