Nitrogen is an essential nutrient for plant growth. When the plants have been grown for a long-term effect to decreased nitrogen in soil and insufficiency of the plant growth. One biological method for increasing the nitrogen content in soil is utilize of free nitrogen-fixing bacteria Azotobacter. Therefore the objective of this research was to search natural material suitable for Azotobacter fixation. The 10 natural materials were observed physical structure and investigated the ability of natural materials for Azotobacter fixation. The results showed that water hyacinth and bagasse stalks were fixed the Azotobacter of 2.43x108 and 1.94 x108 CFU per gram of each natural material respectively. After that the selected fixed Azotobacter of water hyacinth and bagasse stalks were studied the growth of Brassica Chinensis. This experiment was designed to 4 treatments. The first treatment was mixed of water hyacinth stalks and the Azotobacter. Second treatment was mixed of bagasse stalks and the Azotobacter. The third treatment was the Azotobacter only. The last treatment was soil only. The results indicated that the average of plant growth include height leaf number root length fresh weight and dry weight of the mixed of water hyacinth stalks and the Azotobacter had significantly higher growth rates than other treatments. The total nitrogen was also increased 1.4 fold in the soil. All results suggest that the water hyacinth stalk is alternative for the fixation of the free nitrogen-fixing bacteria Azotobacter as induce nitrogen in the soil and plant growth promotion.

The objective of this research was to study the effect of substitution of wheat flour with Cavendish banana flour on specific volume density antioxidant activity and the sensory acceptance of bread using Cavendish banana flour instead of wheat flour as 0% (control) 10% 20% and 30% of the total flour weight. It was found that an increasing amount of Cavendish banana flour caused the darker of the bread appearance and the specific volume of the bread decreased from 4.22 to 2.69 cm3/g while the bread density increased from 0.24 to 0.37 g/cm3. The total phenolic content and antioxidant activity of the bread made of Cavendish banana flour instead of wheat flour were significantly greater than the control bread (p<0.05). Also the sensory acceptance scores by panelists in terms of appearance color aroma taste texture and overall acceptance of bread using 10-30% of Cavendish banana flour content were not significantly different compared to the control bread (p>0.05) . Therefore the bread using 30% Cavendish banana flour gave the highest amount of total phenolic compounds and antioxidant activity with well accepted by consumers.

The objectives of this research is to study the relationship between tolerance and measurement range of load cells. Tolerance test kit length of mass beam 90 cm was used. It can create the compressed force at the load cell more than 1 kN. The experiment cam be divided into 2 stages; 1.) verification of load range and 2.) linearity test. Both stages are tested at a temperature at 25°C using 10 to 30 kg of mass in the lowest compressed force condition of 0.091 kN and the maximum compressed force condition of 1.12kN As a result the linearity performance of the tolerance of the load cell test kit between calculated force and displayed value force are different 0.354 percentage only while the standard deviation of displayed value force and voltage signal output are 0.0013 and 0.0022 respectively. It reveals that the experimental result is reliable because of less than 1. In addition the tolerance of the load cell tolerance testing machine is 0.00300 (0.3 percent) which was calculated from the comparison of the tolerance specification of two main equipment that specified by manufacturer.

This research aims to study 1) personal factors affecting the performance of Thai commercial bank employees 2) motivation affecting the work performance of Thai commercial bank employees 3) self-development affecting the work performance of Thai commercial bank employees 4) the work performance of Thai commercial bank employees. The population for this research was 162093 Thai commercial bank employees. The sample size of 383 people was determined using Krejcie & Morgan. The data was collected from Google Form questionnaires. The statistics used to analyze the data were frequency percentage mean and standard deviation. The statistics used to test the research hypothesis were T-test one-way analysis of variance the pair test by the Scheffe method and single linear regression analysis statistics. The results showed that most of the samples were female employees between 21-30 years of age a bachelor’s degree single status income in the range of 15001-25000 Baht and a working period of 5-10 years. The respondents had their opinion level of motivation factors happiness factors and self-development factors affecting the work performance of Thai commercial bank employees. It was found that the sample group had the highest opinion level in the overall opinion level. The results showed that the respondents had an opinion level of the work performance of Thai commercial bank employees. It was found that the sample group had the opinion level as a whole at the highest opinion level. The results of hypothesis test 1 revealed that personal factors such as gender age educational level status income and working in different departments had no effect on the performance of Thai commercial bank employees. Statistically significant at the 0.05 level and personal factors such as differences in the working period. Factors affecting the performance of Thai commercial bank employees at a statistically significant level of 0.05 and personal factors such as age education level income working period. When testing the hypothesis classified by aspects the efficiency of work of Thai commercial bank employees differed. Therefore the difference was tested by pair using Scheffe’s method. The results of hypothesis test 2 revealed that motivation affects the performance of Thai commercial bank employees. The correlation coefficient (R) = 0.858 adjusted R^2= 0.753 was statistically significant at the 0.05 level. The results of hypothesis test 3 revealed that self-development affects the efficiency of Thai commercial bank employees. The correlation coefficient (R) = 0.640 adjusted R^2= 0.40 was statistically significant at the 0.05 level.

The objectives of this study were to discover the effectiveness of the environmental accounting on the financial information quality classified by the population characteristics and the organization sustainability of businesses certified by ISO 14001 in Thailand. The data were collected from 200 Finance and Accounting directors or managers of businesses certified by ISO 14001 in Thailand through the questionnaire as a research instrument. Statistics used in the data analysis included frequency percentage mean standard deviation multiple correlation analysis and multiple regression analysis. The results showed that the effectiveness of environmental accounting regarding in the aspect of the reliability of the data reporting was significantly related to the quality of financial information and corporate sustainability. In addition the quality of financial information was also significantly related to the organization sustainability which included the addition of business value competitive ability and the organization image.