จำนวน Repository ( 111 )

ปัจจัยที่มีอิทธิพลต่อประสิทธิภาพการปฏิบัติงานของพนักงานบริษัท ไทยทริดิไมท์ จำกัด
ปัจจัยที่มีอิทธิพลต่อประสิทธิภาพการปฏิบัติงานของพนักงานบริษัท ไทยทริดิไมท์ จำกัด

The study on factors affecting the performance of Thai Tridymite Limited employees was aimed to investigate their personal factors incentive factors teamwork behavior work performance motivation affecting the work efficiency and behavior factors that affected the employees’ performance. The population used in this study was 113 employees. The data analysis relied on the statistics including percentage average and standard deviation. The hypothesis testing applied multiple regression analysis (Multiple Regression Analysis) at the 0.05 significance level. The results showed that the employees working at Thai Tridymite Limited were mostly female between the ages of 30-40 years old with a bachelors degree earning 10000 - 20000 Baht income in the average. They had been working for the company for lower than five years and had high-level motivation concerning job responsibility work success work progress acceptability salary income management interpersonal relationship administration policy work conditions and work security. As a whole the level teamwork behavioral factors was high including the team mission and goals work assignments according to the delegation of duties open communication distributed leadership and the joint decision. In terms of work performance the level of personal performance and organization performance was considered high. The hypothesis testing revealed factors motivating the work performance and teamwork behavior that affected the performance of the employees at the .0 5 level statistical significance. The incentive factors affecting performance included the nature of work work progress salary income work conditions and work security. Teamwork behavioral factors affected distributed leadership and joint decision.

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การสร้างและหาประสิทธิภาพชุดทดลองเพื่อพัฒนาทักษะการเรียนรู้วิชากลศาสตร์ของไหล
การสร้างและหาประสิทธิภาพชุดทดลองเพื่อพัฒนาทักษะการเรียนรู้วิชากลศาสตร์ของไหล

The Experiment Set of Pipe’s Loss Flow is intended to design and create a trial version of the loss of flow in the pipe and the objective is to find the speed of the flow through the pipe by reading the difference of pressure The Experiment Set of Pipe’s Loss Flow is equipped with the structure of a width of 86 centimeters long 120 cm high 171 centimeters and have a trial version which contains the water pump the Centrifugal pump size 0.5 HP 220 – 240 volt 1 set. The tanks for trial 28 liters

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การสร้างและหาประสิทธิภาพชุดฝึกอบรมตามสมรรถนะวิชาชีพช่างบริการยานยนต์
การสร้างและหาประสิทธิภาพชุดฝึกอบรมตามสมรรถนะวิชาชีพช่างบริการยานยนต์

The purpose of this study were to conduct and to evaluate the effectiveness of Automotive service technician The research procedure starting by collect and study document : research paper international occupational standard (Oklahoma Department of Career and Technology Education) and competency needed in Motorcycle Mechanic suggested by 7 person who working in this field. All data will be referred for behavior objectives list and learning materials design such as information sheet practice operation sheet for experience skill training evaluation sheet with evaluation criteria which clearly listed topics. The sample group in this study was 19 PAJAMANGALA UNIVERSITY OF TECHNOLOGY PHRANAKHON Faculty of Industrial Education in academic year 2 0 1 7 . Pre-test will be given before training steps according to the manual. The students will do the test after each training topic. At the training end Post-test will be given and student final assignment will be evaluated by 5 experts. The Pre-test and Post-test scores will be statistical mean difference test. The research results found that the student final assignment competencies evaluation in percentage mean score was 87.55/94.66/85.13 that higher than 80/80/80 about the expectation. The test percentage mean score after training each topic was 92.11 that higher than 90 about the expectation. The percentage mean score difference test between before and after training was significant at statistical level .01 and the after training score was higher than before training score.

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การวิเคราะห์อิทธิพลที่มีผลต่อผลผลิตพืชไร่ทางเศรษฐกิจที่สำคัญในพื้นที่เพาะปลูกเขตภาคกลางของประเทศไทยด้วยตัวแบบทางคณิตศาสตร์อย่างมีประสิทธิภาพ
การวิเคราะห์อิทธิพลที่มีผลต่อผลผลิตพืชไร่ทางเศรษฐกิจที่สำคัญในพื้นที่เพาะปลูกเขตภาคกลางของประเทศไทยด้วยตัวแบบทางคณิตศาสตร์อย่างมีประสิทธิภาพ

The objectives of this research are to propose an approate and efficient model for analyzing rice corn and sugar yields data. A linear mixed model (LMM) with spatial correlation following the conditional autoregressive model (CAR) was adopted. The results show that for rice yields if the amount of rainfall in a harvest season increases 1 mm the yields will decease by 25.74 tons. if the temperature in the harvest season increases 1 Celsius the yields will decease by 212.60 tons and according to the trend the yield will increase by 15.80 tons each year. For sugar cane yields if the amount of rainfall in the harvest season increases 1 mm the yields will decease by 51.35 tons. if the temperature in the harvest season increase 1 Celsius the yields will incease by 121.30 tons and according to the trend the yield will increase by 29.93.80 tons each year. For corn yield if the amount of rainfall in the havest season increases 1 mm the yields will incease by 73.45 tons. if the temperature in he havest season increases 1 celsius the yields will decease by 40.44 tons and according to the trend the yield will increase by 1.74 tons each year.

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การวิเคราะห์ผลผลิต และราคาข้าวในประเทศไทยอย่างมีประสิทธิภาพโดยใช้ฟังก์ชันฤดูกาล และแนวโน้มในตัวแบบอนุกรมเวลาที่เหมาะสม
การวิเคราะห์ผลผลิต และราคาข้าวในประเทศไทยอย่างมีประสิทธิภาพโดยใช้ฟังก์ชันฤดูกาล และแนวโน้มในตัวแบบอนุกรมเวลาที่เหมาะสม

This research aims to apply the principle of stochastic process for modeling. The parameters are estimated using Bayesian methods. The monthly average real price of paddy rice 15% and yield of paddy rice in Thailand were studied. The price and the yield of paddy rice which are time series data consisting of four components autocorrelation an exponential cumulative distribution function for trend outliers and two different types of seasons: the dummy seasons and Fourier function seasons. Writing algorithms programming in OpenBUGS and evaluating the performance of models from simulation programming in R were conducted. After that Bayesian methods with dummy seasons and Fourier function season were compared using RMSE MSE and MAE as the criteria. The results show that the Bayesian model with an exponential cumulative distribution function for trend and dummy seasons give the lowest RMSE MSE and MAE for both model fitting and model validating.

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