จำนวน Repository ( 286 )

การประเมินความเสี่ยงโรคหัดและโรคหัดเยอรมันในประเทศไทยด้วยตัวแบบผสมเชิงเส้นวางนัยทั่วไป  ที่มีการแจกแจงปัวซงพหุตัวแปร
การประเมินความเสี่ยงโรคหัดและโรคหัดเยอรมันในประเทศไทยด้วยตัวแบบผสมเชิงเส้นวางนัยทั่วไป ที่มีการแจกแจงปัวซงพหุตัวแปร

The objectives of this research are to propose a model for risk assessment of Measles and Rubella morbidity in Thailand to investigate factors influencing on the Measles and Rubella morbidity rates and to construct the disease maps of those two diseases. The generalized linear mixed model (GLMM) in which the responses have a Poisson distribution and the spatial effects follow a multivariate conditional autoregressive model (MCAR) are adopted. The dependent variables are the number of Measles and Rubella disease patients in each province. The factors considered are average temperature the amount of rainfall and regions. The results show that the temperature rainfall and regions influence on the Measles and Rubella morbidity rates. Measles and Rubella maps are easy for readers to see which areas are at high risk and to compare the morbidity rates among those areas by looking at those different colors.

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การปรับปรุงคุณภาพมะขามหวานด้วยความร้อนระดับครัวเรือนเพื่อวิสาหกิจชุมชน
การปรับปรุงคุณภาพมะขามหวานด้วยความร้อนระดับครัวเรือนเพื่อวิสาหกิจชุมชน

Sweet tamarind is a unique and economic plant of Phetchaboon province and it has already been geographical indication (GI) registered. One of its main problems is fungal degeneration which cannot be physically visible. This causes the consumer’s uncertainty on its quality especially sweet tamarind from small communities. This led to the study on the use of household heat to reduce fungal degeneration by steaming at 100oC for 50 60 70 and 80 minutes and drying in the hot air oven at 70oC for 3 hours. It was found that increasing the heat resulted in darkening the sweet tamarind color and heightening up its content moisture (p<0.05) statistical significance. Drying temperature at 60 70 and 80oC revealed the higher the heat the shorter the drying time and the sweet tamarind content was darker. In addition drying significantly decreased the moisture and preference score of sweet tamarind (p<0.05). The storage of sweet tamarind in mesh bag at ambient temperature revealed that the increase of the storage time resulted in a significant increase in the moisture of the sweet tamarind shell (p<0.05) and could preserve the tamarind for at least 12 weeks without the deterioration from the fungus.

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การสร้างชุดการเรียนรู้  เรื่อง การประดิษฐ์ดอกไม้ประจาชาติอาเซียนจากผ้าทอเกาะยอ
การสร้างชุดการเรียนรู้ เรื่อง การประดิษฐ์ดอกไม้ประจาชาติอาเซียนจากผ้าทอเกาะยอ

The purposes of this research follow as 1) the creating of learning package : How to Make the National Flowers of Asean Using Kohyor Fabric effectively 2) comparing pre and post learning activement 3) studying student’s satisfactory to teaching medhods by the creating of learning target group 20 students used for purposing sampling. The results of research that The Creating of Learning Package : How to Make the National Flowers of Asean Using Kohyor Fabric are more effective than criteria (E1/E2 80/80) The Creating of Learning Package : How to Make the National Flowers of Asean Using Kohyor Fabric higher than significance at .05 and students are satisfied at Tthe Creating of Learning Package : How to Make the National Flowers of Asean Using Kohyor Fabric at the high level (x ̅= 4.35 S.D. = .60)

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การออกแบบและพัฒนาชุดขับเคลื่อนในการทดสอบการชนรถจักรยานยนต์
การออกแบบและพัฒนาชุดขับเคลื่อนในการทดสอบการชนรถจักรยานยนต์

A design and development of powertrain module crash test using with the motorcycle crash test is aim to create a special tool for automotive assessment and safety engineering based on the realistic test. In order to main system of power module tester is consisting of powertrain system using electrical motor transferring system using chains and gears and control direction system using dual rails respectively. Based on powertrain module tester performance crashing speed relative angle between target and distance before crash are regarded. Nevertheless the result of testing performance was conducted to statistic hypothesis test by Mean Absolute Deviation: MAD Standard Deviation: SD Mean Square Error: MSE Mean Absolute Percent Error: MAPE and Root Mean Square Error: RMSE. The results of this approach discovered that the crashing speed was the highest error with 96% and the lowest was distance before crash. Furthermore it was corresponding to the statistic hypothesis test. However the result of the error was influence of the rails distance which limit by funding. In case of crash energy the mean of energy was appeared on 10.978 J. Whereas the tendency of variable was similar to polynomial equation.

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การศึกษาตัวแปรที่มีผลต่อสมรรถนะการฉีดเชื้อเพลิงของหัวฉีดรถยนต์ที่ใช้น้ำมัน ไบโอดีเซล และ น้ำมันไพโรไลซิส
การศึกษาตัวแปรที่มีผลต่อสมรรถนะการฉีดเชื้อเพลิงของหัวฉีดรถยนต์ที่ใช้น้ำมัน ไบโอดีเซล และ น้ำมันไพโรไลซิส

The purpose of this research is to study on variables affecting fuel injection performance of biodiesel fuel injection and pyrolysis fuel. To test for variables affecting the fuel injection performance of biodiesel fuel injectors and pyrolysis fuel. By experimenting and modeling using computer programs to compare results. Finally for to use the information in the design of the car nozzle to work well with Biodiesel and pyrolysis fuel. The tested fuels which are pyrolysis fuel Bio-diesel fuel and diesel fuel are tested by tester Anton Paar@ Stabinger Viscosmeter (model SVM 3000/G2) ASTM D341 standard. The result shown that the density of the fuel is increasing normally. However the viscosity of the diesel and biodiesel are strong increased whereas the reducing of temperature is unaffected to the pyrolysis fuel. The fuel injection performance test showed that the density and viscosity of fuel were the major variables that affected the injection performance of the fuel. In case of using pyrolysis oil Injection performance is trend to higher other fuels and cold conditions.

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