The purposes of research were to : 1) study basic information to allow students to practice professional skills related to Home Economics program 2) study desirable characteristics of students and 3) compare the demand level students with professional skills curriculum for the Certificate of Vocational Education in Home Economics of establishment classified by type of establishment duration of operation number of employees in establishment and the number of students practicing professional skills required. The population of this study were owner or manager passed students with Curriculum for the Certificate of Vocational Education in Home Economics 103 people. The questionnaires were used as tool for data. The statistical analysis used in data analysis by using statistical computer software for a social study were frequencies distribution percentages mean standard deviation and ANOVA. The result of this research shown that : 1) that was study basic information to allow students to practice professional skills related to Home Economics program found that establishment mostly commercial which has been in business for 5-10 years with no more than 10 employees and the establishment requires 2 students 2) that was study desirable characteristics of students found that overall the demand level students with professional skills curriculum for the Certificate of Vocational Education in Home Economics in a very high level when considering each aspect and 3) which compared the demand level students with professional skills Curriculum for the Certificate of Vocational Education in Home Economics classified by type of establishment duration of operation and number of students practicing the result were not significantly different and That were comparing them individually and individually no different statistical significantly at the .05 level.

The aims of this study were developed geopolymer matrix for controlled release amoxicillin antibiotic drug in the in vitro gastric and intestines (pH 1 and pH 6.8 temperature 37 ºC conditions). Three formulations of geopolymer tablets (GeAmSF5 GeAmSF7.5 and GeAmSF10) which different silica fume content were used in this study. Geopolymer tablets were measured compressive strength and characterized by using 3D laser microscope Scanning electron microscope (SEM) X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The amoxicillin release was analyzed by UV-VIS spectrophotometer. It was found that amoxicillin in geopolymer tablet was more resistance with various extraction solvents (ethanol water 50 oC pH 1 and 12 solutions) than amoxicillin commercial tablet in 2 hours. Moreover the amoxicillin constantly release from geopolymer matrix after 3 hours in both in vitro gastric and intestines. However amoxicillin was more release in gastric than intestines condition due to the strong acid leached aluminum ion causing damages geopolymer structure. Mathematical modeling of amoxicillin release from geopolymer matrix was fitted best with Higuchi model indicating diffusion of the drug out of matrix.

The Purposes of this research were to study and to compare the Desired Characteristics of Training Students as Perceived by Executives of Tourism Entrepreneur in accordance with the following variables: sex age education level and work experience. By questionnaire was used to collect data. Data were statistically analyzed using percentage mean standard deviation t-test and one-way analysis of variance. The results were as follow: 1) The overall desired characteristics of training students and each aspect were in high level. 2) There were not significant difference of executives of tourism entrepreneur in sex age education level and work experience concerning the desired characteristics of training students.

This thesis is duplicated of the controlled of the AC. Three Phase Generator with case study and analyze of the characteristic of generator in various operating conditions. By the model works of the actual use in establishment generator this is using generator for backup electricity from main feeder. We have the functional testing of start or stop for check store the characteristics in different conditions at that time. Load distributing of generator for check store parameters. The parallelization of generator into the system in case of emergency while the failure of the mains system. The degradation of generator off the system when main is back to normal or the emergency stops of generator in case of accident during the operation.

Freight is major source of income of the State Railway of Thailand (SRT); which had revenues of one billion baht a year. The development of freight by rail system to be fart punctual and safe is important. Knuckle pin serves tension and shear stress in pulling Rolling Stock. Strength testing of Knuckle pin must be done by technical and engineering knowledge. SRT has 6000 Rolling Stocks; that means 6000 Knuckle Pin has been used and it is likely to increase due to the construction of the Double Track Project and the purchase of new Rolling Stocks. The efficient Knuckle Pin prolongs lifespan and SRT would have benefit on saving cost of maintenance and increase safety in the transportation of goods. This research is aimed at creating the understanding about the quality of the Knuckle Pin modeled Nat Mall. The pin would be test by Standard Test Methods for Tension Testing of Metallic Materialsand the Standard Test Method for Analysis of Carbon and Low-Alloy Steel by Spark Atomic Emission Spectrometry and Hardness Testing Machine and Microstructureto determine the cause of pin’s damage. This study will contribute the standardization of the quality of the Knuckle Pin which is used in Rolling Stocks of SRT.