This research presents a study of the compressive strength porosity chloride penetration resistance to carbonation and corrosion of self-compacting concrete containing fly ash ground rice husk-bark ash and ground bottom ash. Portland cement (CT) is partially replaced with pozzolans 0-40% by weight of the cementitious materials. Fly ash ground rice husk-bark ash and ground bottom ash have a high potential to be used as a good cementitious material. The results show that the compressive strength and low porosity of self-compacting concrete improves substantially with partial replacement of Portland cement with fly ash. Self-compacting concrete mix cement containing 20-40% of pozzolans can be used to make cementitious materials. The use of fly ash ground rice husk-bark ash and ground bottom ash produces concrete mix with good strength and resistance to chloride and corrosion.

The objective of this research is to propose a forecasting model for uncertain demand index data of steel. The forecasting model proposed by Yelland (2010) was modified by adjusting the prior distributions of some parameters in the model in order that it is suitable for the demand of steel in Thailand. The algorithms for model fitting were written in OpenBUGS. The proposed model was compared to a classical exponential smoothing model. The research found that the forecast errors from the proposed forecasting model were minimum.

This article presents texture analysis of crispy snack products by using Acoustic Emission (AE) to measure sound that occurred when the products were chewed or broken. This technique has currently gained great interest from food scientists. A sound emitted from food was found to be related with microstructure and crispness. Measurement of sound emitted from food when it was chewed consists of three main steps: 1) Apply force on piece of food with a texture analyzer; 2) Detect sound signal with an acoustic envelop detector; and 3) Interpret the collected data of mechanical force and acoustic emission.

The research regarding effect of nanotechnology use in making chef apparel on safety of food had the objectives to study about the result of using nano materials coating on yarn and fabric; to study about the use of nano materials which are suitable for fabric to be sewn for being chef apparel and to study the effect of using of nanotechnology for chef apparel on smell and the inhibition of pathogenic bacteria growth using three types of nano materials including Zinc oxide nano Silver nano and Titanium dioxide nano to be coated on four samples including cotton thread T/R thread cotton fabric and T/R fabric. The researcher tested the fabric sample for inhibiting growth of pathogenic bacteria and found that Zinc oxide nano and Silver nano were not different in inhibiting growth of pathogenic bacteria. But the coating on the fabric is more convenient and cheaper. And effective against Gram-positive bacteria. A bacterium that is often found in personal hygiene unclean conditions better than or equal to SS.S3%. Then Four kinds of fabric were sewn to be chef apparel. Actual chef tried wearing to test effectiveness in resisting bacteria. When the apparel was used for two times it was found that T/R fabric which was coated with Zinc oxide nano and Silver nano had different ability to resist gram-positive bacteria and gram-negative bacteria. Fabric T/R Silver nano coating remains effective against bacteria as well and proper to be sewn as chef apparel.

The purposes of this research were1) to study the process of dried banana leaves’ dyeing with natural dye and scientific dye and 2) to study the results of dried banana leaves’ dyeing with natural dye and scientific dye. Dried banana leaves were bleached by using three formulas as follows: 1. Mix Haiter with water in the ratio 1:1 2. Mix Haiter with water in the ratio 2:1 and 3. Mix Haiter with water in the ratio 3:1. Soak 300 grams of the dried banana leaves for 5 days and record the results. The result of this experiment indicated that the third formula wassuitable to whiten and toughen dried banana leaves. After choosing the suitable formula for bleaching