จำนวน Repository ( 137 )

การวิเคราะห์ผลกระทบของฮาร์มอนิกเพื่อแก้ปัญหาเศรษฐศาสตร์ในระบบไฟฟ้ากำลัง
การวิเคราะห์ผลกระทบของฮาร์มอนิกเพื่อแก้ปัญหาเศรษฐศาสตร์ในระบบไฟฟ้ากำลัง

This research 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.

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การพัฒนาหลักสูตรการออกแบบและวิเคราะห์ด้วยโปรแกรม SolidWorks
การพัฒนาหลักสูตรการออกแบบและวิเคราะห์ด้วยโปรแกรม SolidWorks

Short-term training courses are created with a specific purpose to promote increasing skills knowledge and experience for people or groups of people that wants to learn about that subject. An important factor is a policy to drive national development by focusing on 10 target industries consisting of the extension of 5 existing S-curve industries and 5 S-curve future industries. Higher education institutions need to speed up the workforce develop young people to have true knowledge and ability to work and an important force in national development. Training courses are an important tool for higher educated institutions to change develop and modernized courses. From the design and analysis of short training courses providing 4 short-term training courses consisting of 1) Product design and 3D mechanical parts using SolidWorks 2) Advanced Finite Element Application with SolidWorks Simulation 3) Analysis of product and mechanical strength on finite element method using SolidWorks Simulation and 4) Mold design and simulation of plastic injection. Each of the above courses takes 6 hours of training per day. Every course is linked and continuous or must be extended on a sequential basis.

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การพัฒนาวิธีสำหรับวิเคราะห์แกมมา-โอริซานอบในรำข้าวด้วยตัวทำละลายที่เป็นมิตรกับสิ่งแวดล้อม
การพัฒนาวิธีสำหรับวิเคราะห์แกมมา-โอริซานอบในรำข้าวด้วยตัวทำละลายที่เป็นมิตรกับสิ่งแวดล้อม

This research project aim to develop method for analysis of gamma-oryzanol in rice bran with environmental friendly solvent. The total content of gamma-oryzanol in rice bran was investigated using the combination between partial extraction method with ethyl lactate solvent and the study of factors on partial extraction. The parameters that effect the amount of gamma-oryzanol with partial extraction method consist of weight of rice bran volume of solvent and extraction time were conducted. The result shown the maximum content of gamma-oryzanol that extracted with 50 milligrams of rice bran 5 milliliters of ethyl lactate and 2 minutes of extraction time. The quantity of gamma-oryzanol in rice bran that observed using partial extraction method with ethyl lactate solvent and classical extraction method were 4.23 and 4.32 milligram per gram rice bran respectively. The results from both extraction methods were well agreement. When the extracted rice bran was separated with High Performance Liquid Chromatography the result shown the main compositions of extracted rice bran including cycloartenyl ferulate 24-Methylene cycloartanyl ferulate and campestanyl ferulate. The develop method for analysis of gamma-oryzanol in rice bran using partial extraction with ethyl lactate solvent is easy use only small apparatus in laboratory cheap short-time consuming and use environmental friendly solvent.

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การวิเคราะห์คุณภาพไฟฟ้าในระบบจำหน่ายไฟฟ้าที่มีแหล่งผลิตไฟฟ้าพลังงานลม
การวิเคราะห์คุณภาพไฟฟ้าในระบบจำหน่ายไฟฟ้าที่มีแหล่งผลิตไฟฟ้าพลังงานลม

This Thesis presents an analysis of wind turbines in a power distribution system that has a wind power source. By comparing the wind turbine with 3 blades and 4 wind turbines while there is no distribution in the distribution system. And the load is distributed in the distribution system To analyze the differences of these 2 wind turbines analyze the pressure values The power quality in the distribution system that occurs. And able to apply wind turbine energy for sustainability And practices to support the correct power supply In the distribution system and able to provide electricity with efficiency and reliability Wind turbine when connecting to the electricity distribution system There is a significant impact on the power distribution system such as the impact on the power loss. Pressure impact etc. It can be seen that the wind turbine with 3 blades works less than the wind turbine with 4 blades not so much. Therefore the test shows that the analysis of the electricity quality in this distribution system for use as a case study And continue to improve the production of wind turbines in the electricity distribution system.

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การคำนวณหาต้นทุนบริการและการวิเคราะห์อัตรากำไรขั้นต้น กรณีศึกษาสถาบันเสริมความงามแห่งหนึ่ง
การคำนวณหาต้นทุนบริการและการวิเคราะห์อัตรากำไรขั้นต้น กรณีศึกษาสถาบันเสริมความงามแห่งหนึ่ง

This study aimed to investigate the level of personnel finance and accounting division. Irrigation measures on job rotation. And to compare the levels of opinions on the current performance measures. BY Individual Personnel Division of Finance and Accounting Department samples used in this study included civil servants employees of government employees. To measure circulating within the agency. Division of Finance and Accounting Department which has a staff of 164 people officials employees of Government Employees (data from the Personnel Department of General Administration. Division of Financial Year 2559) by the processor. And analyzed by a computer program. The statistics used to analyze the data were frequency percentage Mean ( ) standard deviation ( ) The study indicated that Most are female Most are older than 40 years of marital status. A bachelors degree Most earn between 20001-30000.- baht a staff of servants. The period of performance for more than 10 years. The study reviews the Personnel Division of Finance and Accounting Department about the current internal policy process and overall effectiveness on the high responsive level. For suggestions Department executive should monitor closely to the performance of the personnel. This is because of the current agencies may affect the performance of some staff. This may due to not accustomed to working in the new ง position. Which cause problems and impact on other related issues and may become the system itself. Agencies should carefully plan the operation carefully turnover. It should include a detailed study of each position to be rotate. According educational aptitude and proficiency qualification of personnel each. This will help the organisation to meet people’s skills for jobs rotation and reduce redundancy to the overall management. Effectively agency should have the training practice knowledge and skills of the personnel on the new job has been circulating. It may provide for the transfer of knowledge from experts in various internal units (Unit School) or provide a protocol which will guide the operation and lead to the effiency the processes and systems should include the protocol for emergency replacement without impact to make it stop or stumble at any stage of the processes.

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