The objective of this research is to study the suitable factor level for the improvement of annealing furnace for rolled coils steel sheet. The experimenting has been performed to find suitable oxygen level by 5 annealing furnace experiment. The research has been started by collection the combustion. After that the burning adjustment by changing combustion technology with 5 levels of BGCV control valve open as 23% 40% 50% 75% and 100% has been implemented. The combustion adjustment data are recorded analyzed and compared with incomplete combustion value. The research result has been found that after improvement the combustion value. The percentage of oxygen level are improved to the better quality which standard at MV0-49% equal 2.5-4 O2% and MV50-100% equal 1.5-2.5 O2% conclusion 1 furnace as follows at the MV23.1% MV40% MV50% MV75% and MV100% level of oxygen as 2.5% 3% 3% 2% 1.5% and level of carbon monoxide as 0 ppm 2 ppm 2 ppm 2 ppm and 0 ppm respectively. Resulting of fuel energy consumption in the annealing process has been reduced around 225608 baht /year/furnace. Therefore it can depict that energy saving and annealing furnace efficiency improving are increased. The modified parameters will be applied to be the new standard reference values for the further engineer’s operational manual.

The purpose of this research was to study level of the preliminary cost calculate for a large building in Roi Et province and to study the factors that affected on initial cost reduction of large building constructions in Roi Et province. The sample group used in this research were devisers supervisors project managers and construction contractors in Roi Et province. There were 5 projects with a total of 145 people. The instruments used in the research were a 5 level rating estimation questionnaire. Data were analyzed by using frequency percentage mean standard deviation and the hypothesis tested by using Multiple Linear Regression with (Enter Regression). The result of the research shows that An analysis of opinion on principal control of large building constructions in Roi Et province. It was found that the practice level was at the highest level. Which is arranged in order from the highest average to the lowest namely machinery cost material cost contractor cost operating cost and labor costs respectively. and The analysis of Regression Model Development for Preliminary Calculate Cost of construction works had resulted in lowering the initial cost of large building constructions in Roi Et Province of 5 factors included structural design architectural design interior design system design and exterior design. Resulting in reducing the initial cost of large building constructions in Roi Et province with statistical significance at the level of .01 level.

The purposes of this research were to investigate the perception on activity maneuver and supporting factors regarding employees participation in Corporate Social Responsibility (CSR). The sample consisted of 250 employees of Prachin Buri Industrial Estate 304 Prachin Buri Province. The research results are as follows. The employees’ perception on activity maneuver information in CSR in the overall was at the highest level (= 4.62 S.D. = 0.44). The overall perception on the information had a statistically significant positive relationship with employees’ participation at the .01 level (r = .347). When considering each aspect the perception on activity information positively correlated with participation in CSR activities at the .01 level of significance (r = .295). The results of the appropriate model analysis used to forecast the employees’ perception on CSR activity indicated that the perception of policy information had a p-value of .012 meaning that the policy factor could predict the employees’ information perception at 0.05 statistical significance with a tolerance of .704 the VIF was 1.420. As for the planning aspect the tolerance value was .617 with the VIF value of 1.621 and the activity guideline aspect had its tolerance value of .532 with the VIF value of 1.881. This means that the perception regarding policy planning and guideline aspects was not beyond the Multicollinearity variables because their tolerance values were not lower than .2 and VIF did not exceed 10. Also the results of the regression coefficient analysis of factors affecting the information perception on CSR activities in the form of raw scores (B) were .298 .168 and .209 indicating that the variables predicting the perceived social responsibility included policy (X1) planning (X2) and activity guidelines (X3) and the three variables can together predict the level of awareness of CSR activities. These three factors could jointly predict the information perception on CRS at 11 percent. Factors promoting the employee participation on social responsibility were generally at a moderate level ( = 2.94 S.D. = 1.22) and there was a statistically significant positive correlation with employee participation at the .01 level (r = .855). When looking at each aspect it was found that factors promoting the employee participation in training and activities were positively related to the social responsibility aspect statistically significant at .01 (r = .773) and (r = .841). The results of the analysis of the appropriate models used to predict the factors contributing to employee participation showed that employees’ activity and training participation had the positive influence on CSR activities with p-value of .000 and .001 which was less than 0.05 indicating that their attendance could predict promoting factors of the employee participation statistically significant at the .05 level. This means activity and training participation factors could contribute to the promotion of employee participation statistically significant at the .05 level. While the training had a tolerance value of .225 the VIF value of 4.450 the activity participation had a tolerance value of .259 the VIF value of 3.858. As for being a group member the tolerance ship was .193 with the VIF value of 5.185 showing that participating in training and membership did not go beyond the Multicollinearity due to the tolerance value of not less than 2 and VIF value of not more than 10. The result of the regression coefficient analysis of factors affecting the level of factors contributing to employee participation on CSR operations were .157 .391 and .028 showing that the predicting variables of the employee participation promotion were training (X4) and participation (X5) and group membership (X6). The three variables could predict the level of factors contributing to employees participation on CRS at 72.70%

The objective of this research is to study the combustion characteristic of a low-pressure vertical port burner using computational fluid dynamics (CFD). The simulation model was created using Fluent 6.3 in 3D-model of the same size of the burner. The CFD results were verified by measuring the temperature around the burner head and a vessel. Moreover the results of conventional vertical port burner having the swirl angle of 90o and the inclination angle of 90o (CB-S90I90) and two swirl port burners (SB) being SB-S90I13 and SB-S30I90 were compared. The temperatures obtained from CFD and experiments were similar which the error was less than 9%. From the CFD’s results the temperature and heat flux of the SB-S90I13 burner were higher than those of the CB-S90I90 burner. The maximum temperature and heat flux of SB-S90I13 burner were 1445 K and 5291 W/m2 respectively. It was implied that the combustion characteristic and heat transfer to the vessel of SB-S90I13 burner was better than that of CB-S90I90 burner. It was resulted that the thermal efficiency of SB-S90I13 burner was better than that of CB-S90I90 burner which was the percentage energy saving of 6.93%.

The purpose of the study was set to analyze the current situation of human resource cost management of tourism business of community enterprises in the lower central region. The study was examined through the perspective of a group of experts scrutinizing future feasibility of human resource cost management of tourism businesses of the lower central region community enterprises. The data were examined by delphi techniques with the data collected through the interviews and questionnaires from three different data collections. The data analysis was completed using means of descriptive median and consistency then confirmed the result with by the interquartile range calculation. It was found that the key components included 1. Mechanism skill cost 2. Management skills cost and 3. Effectiveness skills cost for the determination and validation of future forms of human resource cost management model in tourism business of community enterprises in the lower central region as examined and approved by the experts in all three skills for the feasibility of the future application