The purpose of the research is to devise and implement for testing the ability to absorb energy from vibration. The results are obtained from simulating the operating status of small machines. In order to get the mechanical force from the vibrating of the machine by using piezoelectric materials (PZT) It was found that the size of the piezoelectric materials used in each condition affected the energy absorption. There are variables interested in different diameters at 27 and 35 millimeters. The result shows that the dielectric displacement is directly proportional to the force used but is inversely proportional to the size of the cross-sectional area of the piezoelectric material. In addition the ability to absorb energy in one second is 4.51 volts and has a maximum energy of 7.4 x10 -8joules.

Ceramic Bismuth Sodium Samarium Titanate - Barium Titanate at the concentration of samarium 0.04 mol% was preparing by ball mill technique. This research has increased the temperature in the combustion process at different temperatures from 940960 and 970 degrees Celsius for 7 hours. The results showed that firing at different temperatures made the ceramic beads very dense. In addition the study of the crystal structure by XRD technique to study the structure of the ceramic BSNT-BT found that the structure is the same substances in the ceramic group BaTiO3. The results of the study of dielectric properties and ferroelectric properties It was found that the dielectric and P-E hysteresis loops were related and tend to correlate with increasing density with sintering temperature. The mechanical properties of ceramics were tested by measuring the hardness of ceramics at different temperatures with temperatures affecting the changes in various properties of ceramics BSNT-BT.

The purpose of this study is to produce the soil improvement materials from food waste and water hyacinth by using a dehydration process. The experiments were divided into two parts : 1) the study of the optimum temperature and time for converting food waste and water hyacinths to soil improvement materials by determining the temperatures of 100 °C 150 °C and 200°C in the periods of 1 hour 2 hours and 3 hours respectively 2) the study of nutrient content in the materials before and after mixing into the soil for 5 days. The soil used in the experiment was sampled from Sai Ma Subdistrict Nonthaburi Province. The parameters used to evaluate the ability to improve the soil quality were soil moisture pH electro conductivity total nitrogen total phosphorus total potassium and organic matter. The results showed that the optimum temperature for drying the food waste was 150°C for 2 hours and the optimum temperature for drying the water hyacinth was 200°C for 3 hours. When the materials were mixed into soil it found that the soil drainage was improved. Mixing the materials into soil could increase the pH value from 5.2 to 5.4 and increase the electrical conductivity from 0.72 mS/cm to 14.78 mS/cm. Besides the plant nutrients including Nitrogen phosphorus and potassium also increased after adding soil improvement materials.

The purposes of this research were to compare the differences of the individual characteristics with performance of employees in state- owned enterprises. To study motivation affecting the work efficiency of the employees in the state enterprise unit. To study the principles of good governance affecting the work efficiency of employees in state enterprise agencies. To study of motivation and good governance principles affecting the efficiency of work performance of employees in state enterprise units The sample used in this study was 56 employees of state enterprise organizations in Thailand. 370 people by distributing questionnaires as data for data collection. The statistics used for data analysis were frequency percentage mean and standard deviation t-test f-test (One Way ANOVA). The relationships were used in Pearson s correlation analysis. Multiple linear regression analysis. The analysis results showed that personal characteristics such as gender age education level Income per month job position job duration. There are no significant differences in the efficiency of the performance of the employees in state enterprise units. Motivation affects the efficiency of work performance (quality of work) of employees in state enterprise units at a moderate level. Motivation affects the efficiency of work performance (quantity of work) of employees in state enterprise units at a moderate level. Motivation affects the efficiency of work performance (time) of employees in state enterprise units at a moderate level. Motivation affects the efficiency of work performance (operating cost) of employees in state enterprise units at a moderate level. Good governance affects work efficiency (quality of work) of employees in state enterprises are at a high level. Good governance affects work efficiency (the quantity of work) of the employees in the state enterprise department is at a medium level. Good governance affects work efficiency (time) of the employees in the state enterprise department was at a medium level. Good governance affects work efficiency (operating expenses) of employees in state enterprise departments are at a medium level. Motivation and good governance principles affect work efficiency (quality of work) of employees in state enterprises are at a high level. Motivation and good governance principles affect work efficiency (the amount of work) of employees in state enterprise departments at a medium level. Motivation and good governance affect the efficiency of work (time) of employees in the department at a moderate level. Motivation and good governance principles affect work efficiency (operating expenses) of employees in state enterprises at a medium level. With a statistical significance of 0.05 .

The objectives of this study were to study the demographic factors including gender age status education level occupation and income affecting the decision to buy food online and tostudy the marketing mix and technology adoption that affected the online food purchasing decisions of Baby Boomersin Bangkok. The population was 55-75 years old Baby Boomer who bought food online in Bangkok. The probability sampling specifically the stratified sampling method was used to determine the total of 400 samples. The data was analyzed using descriptive statistics such as frequency percentage mean and standard deviation. The inferential statistics were Independent Sample T-test One-way ANOVA analysis Pearsons Correlation Coefficient and Multiple Regression Analysis The study results showed that the marketing mix factors could meet the demand for online food ordering of the sample in high level. The technology acceptance level of the overall sample group was high. The importance of the 4-step online food purchasing decision process of the samples namely the perception of the need or problem information seeking alternative assessment and buying decisions was high. The hypothesis testing found that on the evaluation of purchasing options different age groups had a statistically significant difference at 0.05. On purchasing decision married samplesand the widows paid more attention to the purchasing decision process differently at the statistical significance of 0.05.On the perception of needs or problems the sample group with bachelors degrees put more emphasis than those who graduated from elementary schoolsand the group who finished secondary education with the statistical significance at 0.05. On the evaluation of purchasing decision options the group with secondary education put less emphasis thanthe group with bachelors degrees at the statistical significanceof 0.01. On purchasing decision the group with secondary education put less emphasis than associate degree graduates with the statistical significance at 0.05 and put less emphasis thanthe group with a bachelors degree with the statistical significance at 0.05. On data acquisition groups with different incomes put different emphasis with the statistical significance at 0.05. Convenience ease of use and consumer factors had a positive influence on the need or problem perception process at the significant level of 0.05. Convenience benefit perception and ease of use factors had a positive influence on the information seeking processat the significance level of 0.05. Value convenience communication ease of useand consumer factors had a positive influence on the process of evaluating purchasing options at the significant level of 0.05. Convenience benefit perception ease of use and consumer factorshad a positive influence on the purchasing decision process at the significance level of 0.05.