The purposes of this research were to study attitudes towards work organizational atmosphere and relationship between attitudes towards work organizational atmosphere and work participation of the Government Lottery Office employees. The research sample consisted of 260 Government Lottery Office employees drawn from probability sampling and simple random sampling. The statistics used for data analysis were frequency percentage mean standard deviation and Pearson product moment correlation coefficient. The study results indicated that the Government Lottery Office employees’ attitude was at a high level. When considering each aspect it was found that attitude regarding work performance had the highest average value and work participation was also at high level. It was found that accepting assigned responsibilities had the highest average value. The results of the hypothesis testing revealed that in the overall the attitudes towards all aspects and the organizational atmosphere positively correlated with the Lottery Office employees’ work participation statistically significant at the 0.01 level.

The purpose of research is to study the carbon footprint evaluation of products for thread turned Tungsten Carbide 16ER60 of production. To assess amount of greenhouse gas emissions that affect the environment. The key component in the calculation include raw material production material energy and waste January 2018 and March 2019. The scope of the study is the assessment of Business-to-Business (B2B). From the assessment of the carbon footprint it was total of greenhouse gas was about 1.1559 Kg CO2e which was divided from raw material about 0.0118 Kg CO2e and production process about 1.1441 Kg CO2e. From the improvement reducing electricity of sintering furnaces machine and lighting system was reduce greenhouse gas emissions about 0.3249 Kg CO2e or decrease percent 71.88 CT

This study investigates three different types of power plant include a trilateral cycle (TLC) subcritical organic Rankine cycle (ORC) and supercritical ORC power plant driven by geothermal heat source with mass flow rate 1 kg/s and temperature of 100๐C 110๐C and 120๐C. with 27 substances were examined as the working fluid of the power plant. While the net power output of 4.78 kW and 7.74 kW is obtained from the subcritical ORC with RC318 as its working fluid when the heat source temperature are at 100๐C and 110๐C respectively. Meanwhile the net power output of 11.85 kW is obtained from the subcritical ORC with R227ea as its working fluid when the heat source temperature is at 120๐C. The net power output of 5.64 kW and 9.16 kW are obtained from the supercritical ORC with R218 as its working fluid when the heat source temperature are at 100๐C and 110๐C respectively. Meanwhile the net power output of 12.88 kW is obtained from the supercritical ORC with R143a as its working fluid when the heat source temperature is at 120๐C. Furthermore the net power output of 7.96 kW 12.27 kW and 17.38 kW are obtained from the TLC plant with heptane as its working fluid when the heat source temperature are at 100๐C 110๐C and 120๐C respectively.

The objective of this research is to study the combustion behavior of a gas-saving burner S-10 using computational fluid dynamics (CFD). The simulation model was created using Fluent 6.3 in 3D-model of the same size of the burner. LPG pressure of 4 psi was released for this study. The combustion behavior was shown in temperature contour and velocity vector. The CFD results were verified by measuring the temperature around the burner head with a vessel. From the study it was found that the CFD’s results of flow velocity and combustion temperature distributions were validated with the experimental values. The CFD’s result errors were less than 10.35% and 11.87% comparing with the velocity and temperature measurement respectively. The fluid flow and combustion behaviors can be described by this CFD model. Moreover the CFD model of the gas-saving burner S-10 can be applied to improve the thermal efficiency of the burner in the future.

This research aims to study 1) to develop listening and speaking English students of Rajamangala University of Technology Phra Nakhon provide higher efficiency 2) to compare the achievement of listening. English speaking students of Rajamangala University of Technology Phra Nakhon before and after the experiment 3) to enhance the students self-learning of Rajamangala University of Technology Phra Nakhon using correct sentences to communicate in daily life 4) To produce teaching materials to be used by English language instructors or support staff within the Faculty of Liberal Arts. Rajamangala University of Technology Phra Nakhon in preparation for the ASEAN Community in 2015. Experimental study was conducted by using the selfaccess multimedia computer program to practice listening and speaking English skills. The researcher created 3 lessons to take the test in 8 weeks 3 lessons for 1st year Tourism students in Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon. There are 30 students enrolled in English 2 in the second semester of academic year 2013. The instruments used in this study were 1) to practice listening and speaking English skills 2) achievement test listening and speaking English. The data were analyzed by percentage. The results showed that the attitude of the students towards self-access computer multimedia practice in listening and speaking English skills. Overall found the average level of attitudes that influence decision making was good in 87.6%. After using the multimedia computer program students have well 84.71% in listening and the attitude of the students towards computer multimedia speaking was good in 85.23%.