After a propeller shaft was damaged from chloride in sea water it has been fixed by MAG welding process with flux cored wire. Its service life after welded depends on the corrosion resistance of the weld metal. This research aimed to compare the corrosion resistance of two different weld metals between X111-T5-K4 and E71T-1CH8/T/9M-D flux core wire. The test specimens were prepared according to the ASTM G1-103 standard and tested by salt spray test conforming to the ASTM B 117 standard. The result of the test showed that the corrosion rate of the weld metal using X111-T5-K4 flux cored wire is lower than the weld metal of E71T-1CH8/T/9M-D flux cored wire which was 0.21 and 0.32 mm2/hr. respectively. The mass loss at 24 hours of E71T-1CH8/T/9M-D X111-T5-K4 flux core wire were 0.32 and 0.48 grams respectively. Therefore enhancing the service life of propeller shaft from chloride corrosion should use X111-T5-K4 flux core as weld metal

The research aimed to analyze and compare contents of accumulated residue of chlorpyrifos chromium lead and cadmium in five varieties of vegetables in Loei River Loei Province. Five varieties of vegetables such as Vegetable fern (Diplazium esculentum Limnocharis flava (L.)) Limnocharis flava (L.) Buch Lasia spinosa (L.) Thwaites swamp cabbge (Ipomoea aquatica Forsk) and water mimosa (Neptunia oleracea Lour.) were collected during winter summer and rainy seasons from Phu Luang Mueang Loei and Chiang Khan District. Chlorpyrifos was analyzed by high performance liquid chromatography (HPLC). The results showed that the highest chlorpyrifos contents were found in vegetables in winter and summer season in the amount of 0.04±0.00 mg/kg. Analysis of all three heavy metals were carried out dry ashing at 500C and acid digestion with nitric acid prior to analyzing by flame atomic absorption spectrophotometry (FAAS). The results showed that cadmium accumulation in the highest content among all metals in water mimosa (Neptunia oleracea Lour.) in summer season from Phu Luang District (1.83±0.01 mg/kg). The second highest metal content was lead which has found in swamp cabbge (Ipomoea aquatica Forsk) in summer from Mueang Loei District (1.40±0.08 mg/kg). chromium showed the lowest content in Limnocharis flava (L.) Buch in winter from Mueang Loei District (0.47±0.04 mg/kg). The contents of chlorpyrifos and heavy metals were not exceed the legal limits set by International Standard Food and Ministry of Republic Health No.98 of Thailand except Ipomoea aquatica Forsk which collected in summer that showed the lead content higher than the legal limits.

The biosorption of Rhodamine B using modified water hyacinth roots was studied. The adsorption experiments were conducted in a batch setup. Parameters affecting the adsorption of Rhodamine B including pH of a solution adsorption time adsorbent dose and dyes concentration were investigated. With the 80 mg/L Rhodamine B solution of pH 6.0 adsorption time of 60 min and 0.10 g of modified water hyacinth roots the kinetic models pseudo-first order and pseudo-second order kinetic model were applied to examine the kinetic adsorption. The adsorption kinetic data correlates with pseudo-second order kinetic model. The Langmuir and Freundlich adsorption models were applied to describe the isotherms and isotherm constants. Adsorption isotherm data correlates with Langmuir adsorption model. The maximum adsorption capacity of modified water hyacinth roots for Rhodamine B was found to be 63 mg/g

The purpose of this research was to study the satisfactions of the trainees towards the services of Good Government official course of Ministry of Natural Resources and Environment. The research aims to 1) study the satisfaction of trainees for service of fiscal year 2015 2) compare to the basic factors of trainees for service. The 350 questionnaires were distributed to the trainees. It found that 346 questionnaires (98.85%) were returned. To analyze the data mean standard deviation t-test and one-way ANOVA were employed. The results of the study showed that satisfaction of trainees in training service in 5 aspects at the high level. In term of genders and sectors found that are male and female had different satisfaction in the confidence level of 0.05 But in term of lecturer and teaching technique there are no satisfactions satisfaction difference between male and female. And there are no difference in each sector at the 0.05 level but the training and the lecturer and teaching had different satisfaction.

The objective of this study is to examine Banking Sector’s anomaly in the Stock Exchange of Thailand (SET): The influence of Market Capitalization and P/E ratio. The study focuses on 11 stocks in banking sector from January 2012-December 2016 to tally 26840 samples. The factors of this study are the return of these stocks the return of SET the market capitalization and P/E ratio of banking sector in the Stock Exchange of Thailand. The study classifies these stocks into 4 groups as following - Low market capitalization group - High market capitalization group - Low P/E ratio group - High P/E ratio group The multiple linear regressions with Ordinary Least Squares (OLS) are used in analysis at the statistically significant level of 0.1. The result shows that all 4 groups do not have statistical relationship with the return of banking sector in SET. The conclusion of this study is that there is no anomaly of banking sector from the influences of market capitalization and P/E ratio.