The objective of study was to design and development of spray drying technology for production of salt powder. The process design and build spray dryer that consisted of three parts: an atomizer a drying column and a dry powder collecting unit. The operation of a spray dryer was co-current flow. A drying column had diameter 0.5 m high 1.5 m and heater 15 kW with automatic temperature control PID 220 V AC power. The test used a saline solution. The inlet air temperature had 5 levels: 130 140 150 160 and 170 ?C. The inlet air velocity had 5 levels: 8 8.5 9 9.5 and 10 m/s. The results were a spray dryer be able to saline solution became salt powder with moisture content between 1.0 - 2.5 % (wet basis) which was in the standard of pure consumable salt (TIS 2086-2544) and can be classified at first class that moisture content had no more than 3 %

Currently the internet services with 3G technology by mobile phone operators in Thailand are different in the performance. The mobile phone operators have already launched 3G technology with 2G frequency ranges which are limited in the efficiency. This paper aims to compare the efficiency of the internet service with 3G technology by three mobile phone operators (AIS DTAC and Truemove H) in Thailand. There are three type of testing as follows: Ping to both domestic and international website Bandwidth speed test and FTP Test (upload and download) are used to evaluate the performance of these mobile phone operators. There were five places in Bangkok where are the top of the network congestion list for such testing the three mobile phone operators. The result showed that AIS gives the best performance in the ping test. Truemove H introduces the best performance in both FTP and Bandwidth speed test. The DTAC performances are moderated level for every tests.

The aim of this research was to study the antibacterial activities of crude extract with hexane from the leaves stems corms and roots of Acrostichumaureum L. by disc diffusion method against the pathogens viz. Bacillus cereus TISTR687 Staphylococcus aureus TISTR1466 Escherichia coli TISTR780 and Salmonella typhimurium TISTR292. The results revealed that the leaves extracts showed antibacterial activity onall of fourtested pathogenic bacteria with the inhibition zone of 9.20 0.37 8.92 0.09 6.62 0.48 and7.82 0.56 mm.respectively. While the stems corms and roots extracts showed antibacterial activity ononly B. cereus with the inhibition zone of 8.02 0.25 8.51 0.21 and 10.87 0.13 mm. respectively. This preliminary screening results demonstrated the potential of the extracts from various parts of Acrostichumaureum L. to be used as antibacterial agent and to be further researched and developed into innovative pharmaceutical and cosmetic products.

The purpose of this research was to analyze the satisfaction of students towards the academic service of Academic and Research Affair Faculty of Management Technology Rajamangala University of Technology Isan Surin Campus. The processes of this study were divided into three parts: 1.) the procedures of the academic services providing. 2.) The service of academic department officers/staffs. 3.) The facilities feature that classified into gender (sex) and education level (year) of the students. The populations used were 200 students among the first year to the fourth year students who studied in the academic year of 2011. The tool used consisted was the questionnaire and the statistic data were analyzed by frequency percentage average value mean standard deviation T-test and One-Way ANOVA. The findings were concluded as follows: 1.) The students of Management Technology Faculty Rajamangala University of Technology Isan Surin Campus who had the different in gender (sex) and education level (year) were satisfied the procedures of the academic services providing were in the moderate level. While the service of academic department officers/staffs were in high level and lastly the facilities features were also in high level. 2.) The students of Management Technology Faculty Rajamangala University of Technology Isan Surin Campus who had the different gender were satisfied the procedures of the academic services providing the service of academic department officers/staffs the facilities features in the level of indifferent significant. 3.) The students of Management Technology Faculty Rajamangala University of Technology Isan Surin Campus who had the different education level (year) were satisfied the procedures of the academic services providing the service of academic department officers/staffs the facilities features in the different statistical significant level at 0.05

The objectives of this research were to study about student’s quality of life level of the Faculty of Science and Fisheries Technology Rajamangala University of Technology Srivijaya Trang Campus and compare student’s quality of life level which each gets different personal factors. The research group is the 310 students who study in 1-4 years of the Faculty of Science and Fisheries Technology Rajamangala University of Technology Srivijaya Trang Campus. The research material was questionnaire. The Reliability value analyzing was 0.92. The results were as follows: 1. In whole student’s quality of life level of had got a good quality of life level such as life satisfaction self-concept and socioeconomic factors were good level while health and functioning was medium level. 2. Comparison about differences personal factors of student’s quality of life level found that different seniority and major influences to student’s quality of life.