This research aims to develop the gypsum refractory board mixed with corn leaf coir. The 5 ratios of gypsum plaster: corn leaf coir: tap water: sodium silicate are equal to 1: 0: 1: 0.03 1: 0.100: 1: 0.03 1: 0.150: 1: 0.03 1: 0.200: 1: 0.03 1: 0.250: 1: 0.03 และ 1: 0.300: 1: 0.03 by weighted. The gypsum refractory boards were produce by casting in normal temperature (30 – 35 degree of Celsius). The properties testing of gypsum refractory board mixed with corn leaf coir followed the TIS 219-2009 standard (gypsum plasterboard) included: breaking load nail pull resistance deflection water absorption density and thermal conductivity coefficient. From the results 1: 150: 1: 0.03 is the most suitable ratio of gypsum refractory board mixed with corn leaf coir. This developed gypsum refractory boards can reduce the quantity of corn leaf waste and get the good thermal insulation gypsum refractory board products.

The objectives of this research are to propose a linear mixed model (LMM) with spatial correlation for an analysis of rice yields in Thailand to estimate the rice yield in each month of all provinces in Thailand to investigate factors influencing on the rice yields and to construct the maps of rice yields. A linear mixed model (LMM) in which the spatial effects follow the conditional autoregressive model (CAR) is used. The estimated rice yields are used to construct the rice yield maps. The dependent variables are the rice yield in each month of each province. The data are secondary data at a provincial level. The factors considered are rainfall averaged temperatures and regions. The results show that the factors influencing on the rice yields are rainfall averaged temperature and region. The amount of regional effects ordering from largest to smallest values are northestern region southern region western region central region eastern region and northern region respectively. The top ten provinces and months with high yields ranking from largest to smallest values are Ubon Ratchathani in November (1328000 ton) Surin in Novermber (1070000 ton) Si Sa Ket in Novermber (1023000 ton) Buri Ram in November (939400 ton) Nakhon Ratchasima in November (907500 ton) Roi Et in Novermber (852800 ton) Chiang Rai in Novermber (769800 ton) Khon Kaen in Novermber (692800 ton) Maha Sarakham in Novermber (676200 ton) Udon Thani in Novermber (620600 ton) respectively. The rice yeilds maps are easy for readers to identify which areas have high or low yields. They are a useful tool for planning decision making and implementing plans to help rice famers to increase their rice production.

The study is the development of biological methods for extracting gold from the effluents of the gold processing and gold extraction in the industries where has a very high acidity (pH 0-4). This method should be used to replace the electrochemical process and chemical method which cause the pollution of toxic substances acid fumes and heavy metals of copper cyanide to the environments. The research started at the characterization and identification of microorganisms presented in gold contaminated water in natural source where is highly acidic (pH 2-4) and it could synthesize nanogold particles. The bacteria Bacillus sp. E201 were identified from this source and it showed its 16S rDNA gene with similarity of 95% to bacteria Bacillus thuringiensis accession no. FJ755916. It could create gold in the solution outside the cells within three days Form 1 mM HAuCl4 • 3H2O solution the bacterial dry weight could yield 75.3% with the amount of 0.5115 grams. It could be able to withstand acidic conditions and harvest gold from the gold extraction solution after centrifugation and filtration. So this developed biological method could be developed to apply in the industrial production of gold and jewelry industry.

The purpose of this study is to study a proper quantity of golden bean powder in 4 different levels: 25 50 75 and 100 of the amount of almond powder to study the amount of nutrients in a macaron which made of golden bean powder and to study the level of acceptance of using golden bean powder instead of almond powder in a macaron. The researchers investigated the appropriate amount of golden bean powder in the product by studying the ingredients used in the formulations included golden bean powder by French meringue technique. The researchers used a five-point hedonic scale product to observe sensory of product in appearance color smell taste texture and overall with a taste. The panelists were 40 students in the Department Faculty of Home Economics at Rajamangala University of Technology Phra Nakhon. The Randomized Complete Block Design (RCBD) method was used and compared average scores by Duncan New Multiple Rang Test (DMRT) method at 95% confidence interval. There were statistically significant differences in the levels of golden bean powder all sensory attributes (p< 0.05). Specifically the addition of 75% of golden bean powder had the highest level of acceptance for all sensory attributes with average scores: 4.50 4.42 4.27 4.42 4.27 and 4.42 respectively. The nutrition in macaron net weight 100 grams contain 383 kilocalories of Energy Protein 9.96 grams Carbohydrate 76 grams Sugar 62 grams and Fat 4.38 grams. Based on the comparison of the cost of the standard formula and the golden bean powder it found that the standard formula has a cost of 4.36 baht per 1 pair while the cost of gold bean powder is 2.4 baht per 1 pair. It shows that the golden bean powder will give lower energy than almond powder. Moreover golden bean powder can reduce production costs produce as much as 1 fold.

The purpose of this research was to develop a short vocational training course on household chemical products and to develop a training course for shortterm vocational training in the production of household chemicals. Population groups Is a general public in Bangkok and metropolitan area by using the voluntary selection as follows. Trial of a short course on the production of household chemicals 10 participants. Evaluation of short courses in household chemical production 10 participants. Technology transfer the short-term training course on household chemical production 20 participants and five speakers. The tools used in the research are as follows: 1. Demand questionnaire 2. Short-term vocational training course 3. Satisfaction assessment. Data analysis using statistical software packages. The statistics used were mean ( X ) standard deviation (SD) and t-test. The research found that 1. Study and development of short courses in the production of household chemicals 1.1 selection of household chemicals that will lead to the creation of training courses based on components Where to buy Price per set Properties of components Safety and hazard Materials and equipment used for production storage use and distribution opportunities 1.2 Creating training courses training course components and training documents to have a sequence of steps that are easy and convenient for the learning of the general public 2. Trial of a short course on the production of household chemicals 2.1 Most trainees are satisfied with the short-term training program model as follows: Training procedures Training hours 1.30 hours per 1 course Short-term courses can be implemented and the curriculum can be used as a guideline for occupation at the highest level. As for the number of trainees four people per group per 1 course is at a high level. 2.2 Most of the trainees were satisfied with the speakers and short-term training. In explaining the various components of Household chemicals Explanation of the mixing process Household chemicals Integration of household chemical mixing techniques Explanation of caution In the mixing of household chemicals And explaining how to pack household chemicals at the highest level 3.Short-term evaluation of household chemical production 3.1 Most trainees are satisfied with the short-term training program model. The training process Training hours 1.30 hours per 1 course Short-term courses can be implemented and courses can be used as guidelines for their career at the highest level. As for the number of trainees four people per group per 1 course is at a high level. 3.2 Most of the trainees were satisfied with the speakers and short-term training. Explain the various components of household chemicals Explanation of the mixing process Household chemicals Integration of household chemical mixing techniques. Explanation of caution In the mixing of household chemicals And explaining how to pack household chemicals at the highest level 4.Technology transfer the short-term training course on household chemicalproduction 4.1 Most of the trainees were satisfied with the trainers for short-term training. Explain the various components of household chemicals Explanation of the mixing process Household chemicals Integration of household chemical mixing techniques Explanation of caution in the mixing of household chemicals and explaining how to pack household chemicals at the highest level 4.2 Most trainees were satisfied with the short-term training program model. Regarding the number of trainees four people per group Training procedures The number of training hours is 1.30 hours per course the highest level. Furthermore short courses can be implemented. As for the curriculum it can be used as a guideline for a career at a high level.