In the current practice cotton fabric is predominantly dyed with direct dyes in the presence of a considerable amount of electrolyte (Salt) to reduce negative charge on fiber surface. Thus the high concentration (40-100 g/l) of electrolyte required in cotton fabric dyeing may pose additional effluent problem and waste water treatment costs. The use of polycationic agent to modify the dyeing behaviour of direct dyes on cotton fabric is investigated. Normally polycationic agent had been treated on dyed fabric to improve fastness properties. The comparison of untreated and pretreated cotton fabric was found that the polycationic agent offers the potential for different dyeing patterning possibilities. The dyes was fixed on the fiber by ionic force. So color strength and exhaustion of pretreated fabric was better than untreated fabric and increased in fastness properties even when dyeing had been carried out in the absence of electrolyte. The purpose of the present work was to determine whether the pretreatment of cotton fabric with polycationic agent could enhance the dyeability of the fiber with direct dyes under appropriate condition such as assuming a positive charge on fiber which permitted “electrolyte-free” dyeing after modification without drain and helped reduce dyeing cost.

Rajamangala University of Technology Phra Nakhon Technology Service section Institute of Research and Development with collaboration of Department of Tools and dye Technology Faculty of Engineering produced the prosthesis for the disabled since 2000. Rajamangala University of Technology Phra Nakhon has allocated annual budget for the ongoing operations of more than 350000 baht per year and has provided materials tools and components including the use of machine tools and university personnel for designing innovation. testing and manufacturing and delivering prosthetic equipments to government agencies that serve hopeless people who have no chance to servive and help the disabled who lost their arms or legs to live a normal life independently and would not be burden to the society.

The research aimed to: 1. study and compare food and nutrition knowledge of adolescence by looking at gender and level of education. 2. study and compare the awareness of food and nutrition by comparing gender and level of education. 3. study and compare the practice of food and nutrition by comparing gender and level of education. 4. study the relationship between knowledge awareness and practice of food and nutrition of the adolescence in Muang District Prachinburi Province. Tests and questionnaires were used to gather the data from 346 samples. The Stratified Random Sampling was used. The data were analyzed by using percentile mean standard deviation t-test one way analysis of variance and Pearson’s Product Moment correlation at 0.01 - 0.05 significant level. The study found that 1. 71.4% of the samples were female and 41.0% of the samples were high school graduates. 2. The sampling adolescence had good knowledge of food and nutrition. Different gender had significantly different level of food and nutrition knowledge at 0.01 while different level of study had no different level of food and nutrition knowledge. 3. The sampling adolescence had food and nutrition awareness at high level. Different gender had significantly different level of food and nutrition awareness at 0.01 while different level of study had no different level of food and nutrition awareness. 4. The sample group had good food and nutrition practice at moderate level with no difference between gender and level of study. 5. There was a positive relationship between food and nutrition knowledge awareness and practice of the adolescence at 0.05. The relationship between knowledge and awareness was moderate and the relationship between knowledge and practice was low.

Grafting of hyperbranched polyamidoamine (PAMAM) dendrimer onto ultrafine silica followed by the introduction of phosphonic acid groups onto branch ends was carried out. First an initiating site was incorporated into silica surface by reacting the silica silanol group with 3-aminopropyltriethoxysilane producing amino-functionalized silica. The free amine group content was controlled by varying ratios of methanol to water in the hydrolysis step of sol-gel reaction. Then grafting of PAMAM was performed by repetitive reactions between Michael addition of silica amino groups to methyl acrylate and amidation of the resulting terminal methyl ester groups with ethylenediamine. Amino group content in each generation was determined. This was found to be significantly lower than theoretical value due to unavoidable side reactions. After the G3.0 hyperbranched PAMAM grafted onto silica was synthesized phosphonic acids functionalization of the terminal amino groups by the Mannich type reaction was carried out. The phosphorylated hyperbranched PAMAM grafted silica was achieved and its application on cotton fabric to produce phosphonated cellulose was studied.

Electrospinning is an interesting technique with various potential applications. CeO2 fibers production was achieved via this technique. In this work the prepared condition and the fiber morphology were investigated and described. The optimum condition was 15 kV 7 cm in distance between needle tip and ground collector 50 wt% of i-propanol in the co-solvent. The obtained fibers were continuous with a diameter of 900 nm. The smooth electrospun fibers produced were dried for one hour and then calcined at 450 OC for 3 hours. The calcined fibers were reduced to 600 nm and cracked on the fibers. They were ceria fibers what verified by EDX and XRD pattern. They had high specific surface area to volume ratio and monolith fibers which is applied for catalytic applications.