Non-destructive test with Acoustic Emission technique was used for monitoring of the corrosion in the above ground oil storage tank. In the analytical characteristics of acoustic emission wave however Acoustic Emission test has to be prior used for the location detection of corrosion especially indication of the severity of corrosion. In this research the relationship between the corrosion rate and the sound wave energy was studied. The corrosion and damage detected on the surface of the aboveground storage tank was determined by the Acoustic Emission Test. Nine pieces of low carbon steel grade SS400 was soaked in sodium chloride solution in simulated tanks at concentrations of 1.5 3.5 and 5.5 wt%. Next the corrosion activity was checked by performing with the Acoustic Emission Testing for 1 hour and thus calculating the corrosion rate of the test specimens. From the experiment it was found that the rate of corrosion affects the Acoustic Emission Energy. The corrosion rate was increased with the concentrations of the solution increasing from the corrosion process. The corrosion rate was also increased with the sound wave power increases. Therefore in order to achieve the corrosion rate and the position of the defects on the inner surface of the tank non-destructive testing with acoustic emission technique can be factually chosen for this specific application.

Dipping of Nile Tilapia (Oreochromis niloticus) fillets in the mixture solution of 2.0% sodium pyrophosphate and 0.5%sodium triphosphate and coating with 0.00.30.60.9 % chitosan solutions drained packed in polyethylene bags well sealed stored at 4๐C for 15 days were evaluated. The results showed the moisture of all sample did not statistically difference and quite constant during storage. The pH and TVB-N value increased with the storage period for all sample Coating with low concentration of chitosan resulted in lower pH fillets than higher concentration. The decreasing of pH resulted in decreasing of Water Holding Capacity (WHC) of the fillets. Increasing chitosan concentration increased pH and WHC. The oxidation of the samples revealed that the Thiobarbituric acid(TBA) of 0.3% chitosan was maximum and lower with increasing of chitosan concentration. Increasing of TBA may be because of acidity of chitosan solution activated fat hydrolysis. Nevertheless chitosan coating effectively inhibited growth of microorganism in the fillets.

The objective of this research was to find the suitable types of carving style for five fruits and vegetables e.g. pumpkin carrot radish cantaloupe and Japanese cucumber. Physiological changes and methods to improve quality and extend shelf-life were also studied. The results showed that the leave-carved operations stimulated the respiration rate ethylene production and the electrolyte leakage more than flower-carved operations. These responses depended on the size of wound and surface area that contacted with atmospheric oxygen. Two concentrations of peroxyacetic acid (60 and 80 mg/L) solutions showed the efficacy in reducing microorganism populations better than sodium hypochlorite (50 and 75 mg/L). The three firming agents of calcium chloride (0.5-1.5%) calcium lactate (0.5-2%) and calcium propionate (0.5-2%) could improve texture at different concentrations. The combination effects of peroxyacetic acid (80 mg/L) and firming agents (0.5% calcium chloride 1.5% calcium lactate and 2% calcium propionate) and/or 0.25 and 0.5% of chitosan coating were applied on rose and lotus-carved fruits and vegetables. All off flower-carved fruits and vegetables were stored at 5?1oC in clamshell container. Then they were placed in a control temperature chamber at 25?1oC every day for 3 hours until the end of shelf-life. The results showed that 0.25 and 0.5% chitosan coating had the best coating solutions for extended shelf-life of carved pumpkin carrot and cantaloupe. The control treatment dipped in tap distilled water showed the suitable treatment for rose-carved radish and lotus-carved Japanese cucumber. The best chemical treatment for each fruit and vegetable was repeated in the storage experiment and then they were stored at 5?1oC in clamshell containers to determine the shelf-life of three carved fruits and vegetables (rose carnation and lotus). The shelf-life of two styles of flower from carved pumpkin did not exceed 6 days. Carved carrot in rose and carnation flowers had shelf-life for 12 days while radish was not more than 9 days. The shelf-life of rose and carnation carved cantaloupe did not exceed 9 and 6 days respectively. Lotus-carved Japanese cucumber had shelf-life for 6 days. Carved radish and Japanese cucumber were dipped in tap distilled water which had high initial microbial population that caused the short shelf-life. Thus the application of 2% calcium propionate and 80 mg/L peroxyacetic acid was the suitable treatment for reducing microbial population and improving the appearance quality and extended shelf-life.

The purpose of this research was to study the basic needs of hand-woven cotton fabric with natural dyes the Nan Mon Chae Son group in Lampang. The research instruments were interviewing and evaluation form. The sample were 100 people. The statistic of this research was percentage. The findings revealed that there were different kinds of hand-woven cotton fabric with natural dyes such as scarves bedspreads towels tissue boxes hats bags clothes and pieces of cloth. The design of a luggage storage of heat and hand-woven cotton fabric with natural dyes the Nan Mon Chae Son group divided to 5 groups 25 patterns. The design of mother bag was appropriate at 82% the design of children bag was appropriate at 80% The design of lady bag was the most appropriate at 90% the design of health bag was appropriate at 82% the design of travel bag was appropriate at 81%. The recommendation from evaluation group are as follows. It should make a new products (13 evaluator). It should use the leather for bag handles and decoration (3 evaluator) It should develop the light fastness of fabrics which made from hand weave and natural dye. (4 evaluator).

Genetic algorithms are applied to the multiple products and multiple periods inventory lot-sizing problem with supplier selection under storage capacity. The objective of this research is to calculate the optimal inventory lot-sizing for each supplier and minimize the total inventory cost which includes joint purchase cost of the products transaction cost for the suppliers and holding cost for remaining inventory. It is assumed that demand of multiple products is known over a planning horizon. The problem is formulated as a mixed integer programming and is solved with genetic algorithms. Finally numerical example is provided to illustrate the solution procedure. The results determine what products to order in what quantities with which suppliers in which periods.