จำนวน Repository ( 137 )
การพัฒนาแบบจำลองความรู้ด้านเทคโนโลยีผนวกวิธีการสอนและเนื้อหา (TPCK) ในการประเมินศักยภาพความร้อนของนักศึกษาฝึกสอนสายช่างอุตสาหกรรม
This research conducted an investigation on vocational pre-service teachers’ performance based on Technological Pedagogical Content Knowledge Framework (TPCK) to support learning in 21st century. TPCK Framework integrated three kinds of knowledge needed by a teacher in providing learning process for students effectively. The results of this study found that vocational pre-service teachers had the knowledge of using technology understanding teaching pedagogies and mastering on content individually. However they were limited in blending such essential three domains together to form more effective learning process for their students.
การศึกษาข้อคิดที่ปรากฏในวรรณกรรมเรื่องสามก๊ก ตอนที่ ๔๓ ขงเบ้งเอาชนะปวงปราชญ์ด้วยลิ้น โลซกไม่ฟังเสียงส่วนใหญ่
The objective of this research is to analyze the content and the principles of Chinese novel “Romance of the Three kingdoms episode 43 : Zhuge Liang disputes with the Southern Scholars; Lu Su denounced the Majority opinion” and to apply this in our working and daily lives. The study found that Romance of the Three kingdoms episode 43 : Zhuge Liang disputes with the Southern Scholars; Lu Su denounced the Majority opinion is about Lu Su Marquis Sun Quan invited Zhuge Liang to meet Sun Quan and join Liu Pei’s army. Whereas Sun Quan received the secret letter from Cou Cou joining him to destroy Liu Pei. Lu Su disagreed on that idea but more than ๒๐ scholars supported Sun Quan to surrender to Cou Cou. However Sun Quan had not decided yet. When Zhuge Liang met Sun Quan’ scholars they insulted Liu Pei and Zhunge Liang but Zhuge Liang replied in smart way; praised Liu Pei as the morality and also abuse the excellency as the immorality disgraceful and surrender to evil thief Cou Cou. All of the scholars replied nothing. When Zhuge Liang met Sun Quan he teased about Sun Quan would defect himself by joining with Cou Cou which made Sun Quan furious. However after Sun Quan understood and learned how to win the Cou Cou he calmed down but was still worried about the plan. Then lady Wu came to Sun Quan and reminded him about his mother’s word; “In Zhou Yu’s counsels your safety find”. According to the story “Romance of the Three kingdoms episode 43 : Zhuge Liang disputes with the Southern Scholars; Lu Su denounced the Majority opinion” there are important principles about self-organization people management and job management. For example the self-organization and the great character that leaders showed as grateful honest kindness modesty generous competent intelligent patience and endeavor. People need to follow these principles to find success in their lives. Morality and integrity can win people. The human management from “Romance of the Three kingdoms episode 43 : Zhuge Liang disputes with the Southern Scholars; Lu Su denounced the Majority opinion” the leaders could control their workers and were honest to them. They strictly punished but also giving compensation as the reward. The leaders always learn the new things and where honest decisive kind neutral supportive to the lower class and learned to share. The important principles form this part is “If you treat people well they willingly work with you”. The job management the leaders from the Romance of the Three kingdoms had the important ethic to perform their management as thinking about the majority always have a plan and held frequent meetings put the right man to the right job where keen listened to the others analytical prepare manpower and governed righteousness for the benefits of the people. The best virtues for job management are working for majority benefits having a plan listening to others and getting the right person in the right job.
การประเมินประสิทธิภาพเชิงเทคนิค และความเหมาะสมทางด้านเศรษฐศาสตร์ สำหรับการผสมผสานอุปกรณ์ปรับปรุงสัญญาณฮาร์มอนิกในโรงงานอุตสาหกรรม
This thesis proposes technical performance evaluation and economic decence for the combination of harmonic correction devices in Industry. Currently an electronic device is popularly applied in power network. Although it is a higher performance device than the existing device it still causes the power quality issues and then network failure. Especially harmonic disturbance in the network it is a harmonic source that generates harmonic current into the network. Many types and solutions are available in the present time therefore the suitable and optimal financial solution must be considered. A network model for the analysis of harmonic correction devices suitable solutions and optimal financial has been established in the simulation software that bases on the power and Break Even Point (BEP) equations. The results of analysis shown that the performance of harmonic correction devices suitable solution and BEP of investment in match to the using of a detuned filter bank and an active harmonic filter (case 8) thus these information will be valued for the end-user.
กระบวนการสโตแคสติก สำหรับการวิเคราะห์ตัวแบบอนุกรมเวลา โดยประยุกต์ใช้กับข้อมูลราคาจริง และราคาในตลาดล่วงหน้าของข้าวในประเทศไทย
The objective of this research is to use a stochastic process for building a model using Bayesian parameter estimation. The model is applied to the of crash prices and future prices of rice in Thailand for 120 moths including monthly closing average price of white rice 5% non-glutinous paddy 15% and Hom Mali non-glutinous paddy 105. The data are time series data containing autocorrelation trend seasonality and outliers. The algorithms are turned into codes in OpenBugs and the performance of the model is evaluated using simulation in R. The model with a Weibull cumulative distribution function trend the model with an exponential cumulative distribution function trend and the exponential smoothing model are compared. The root mean squared error (RMSE) mean absolute percentage error (MAPE) and mean absolute error (MAE) are used as the criteria. The results show that the model with the model with an exponential cumulative distribution function trend gives smallest RMSE MAPE and MAE for the crash prices of non-glutinous paddy 15% and Hom Mali non-glutinous paddy 105 for both model fitting part and model validation part. The model with a Weibull cumulative distribution function trend gives the smallest RMSE MAPE and MAE for the closing average price of white rice 5% for both model fitting part and model validation part.
ตัวแบบเบย์สำหรับข้อมูลอนุกรมเวลาเชิงพื้นที่ ประยุกต์ใช้กับผลผลิตยางพารา ในจังหวัดภาคใต้ของประเทศไทย
The objectives of this research are to propose a Bayesian model for spatial time series analysis to apply the proposed model to forecast a monthly rubber yield in Southern provinces of Thailand and to compare the performance of the proposed model with the classical Holt-Winters Additive Exponential smoothing. The proposed model is a linear mixed model (LMM) with spatial effects which follow a conditional autoregressive model (CAR). Dummy variables are used for seasonal effects. A Bayesian method is used for parameter estimation. The estimated monthly yields are used for the monthly rubber yield forecasting. The dependent variables are the rubber yield in each month of each province. The data are secondary data at a provincial level. The factors considered are spatial effects heterogeneity effects and seasonal effects. The results show that the factors influencing on the amount of rubber yields are spatial heterogeneity and seasonal effects. The proposed model is proper and forecast accurately. Using the mean absolute error (MAE) the proposed model has a better performance compared to the classical Holt-Winters Additive Exponential smoothing in both model fitting and model validating. The proposed model should be the first consideration for spatial time series forecasting.