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.

Development of table cloth products from Batik tie-dyed cotton fabric with waterproof finishes aimed 1) to study waterproof finishes process to Batik tie-dyed cotton fabric 2) to test physical properties of Batik tie-dyed cotton fabric and 3) to study satisfaction of consumer to table cloth products from Batik tie-dyed cotton fabric with waterproof finishes. Prototype of table cloth products and questionnaire was used as the tools in this research. The samplings for this study were the 323 consumers from accidental sampling in Faculty of Home Economics Technology and Faculty of Architecture and Design Rajamangala University of Technology Phra Nakhon. Data was analyzed by percentage mean and standard deviation. Reported of physical properties testing of Batik tie-dyed cotton fabric with waterproof finishes as follows; colorfastness to water testing changed in color was grade 4-5 dimensional changes after laundering testing decrease 1.14 percentage in the length and 0.48 percentage in the width colorfastness by hot pressing testing; dry pressing damp pressing and wet pressing changed in color was grade 4-5 and water resistance testing found that surface area having wet patches small. The results from study satisfaction of development of table cloth products from Batik tie-dyed cotton fabric with waterproof finishes were found that; the sample age between 21-30 years bachelor degree education level status of student and monthly income 100001-20000 baht. Consumers purchased and used Batik tie-dyed product categories of clothing agree with table cloth products from Batik tie-dyed cotton fabric with waterproof finishes and selected to buy after this product launch to market from personal preference reason. Color and design price appearance and special properties are the reasons to choose. The total satisfaction to products was highly satisfied (mean 3.65).

The purpose of this research is to study productivity improvement at electronic parts’s assembly line finding the work stations with work station time longer than takt time. This research applied the 5W1H technique as a tool to problem analysis fundamental of hand motions to improve productivity. The study found that the assembly line consisted 15 work stations and a cycle time of 12.0 seconds which greater than the takt time which was 10.5 seconds. The work station time no.6 took longer than the takt time. The fundamental of hand motion technique was applied. By separating or eliminating the fundamental of hand motion did not affect the performance of the work stations. By being integrated the fundamental of hand motion with previous work station or next work station. As a result of research is the new cycle time of this production line is 10.0 seconds the production line capacity increased from 300 pieces per hour to 360 pieces per hour 20 percent increase

This research is aimed to establish the small wireless sensor network under the real environment. The objectives this research is aimed to study the data transmission and evaluate the data transmission performance of RPL protocol in wireless sensor network. Four nodes of wireless sensor network have been installation and transmissions between nodes in single-hop and multi-hop have been simulation for testing and analyzing data from the network following the transmission performance index. The research found that the number of hop and building environment are the principle factor to the performance of RPL protocol this might be the major limit to implement the RPL protocol in wireless sensor network

The purpose of this research was to design and develop an internet management system using radius protocol for a school. The system was developed by PHP language MySQL database and radius protocol. It allowed an administrator to grant users permission to access the internet manage their accounts check their status and record their usage history in files in addition to teachers being able to limit the use of the internet in their classrooms. The system evaluation process was divided into two parts. First the efficiency of the system was evaluated by the administrator and it was found that the system can work as required. Second the system performance was evaluated in terms of network security functional requirement and processing speed by the completion of a questionnaire by five experts. User-friendliness was evaluated by the completion of a questionnaire by 115 teachers and students. Results showed that the average efficiency was 4.22 with a standard deviation of 0.07. It can be concluded that the effectiveness of the developed system was at a high level and its application was beneficial for other organizations