This research Reducing Attrition Rate of RMUTP First-year Undergraduate Students Using the Pre-university Program was done to find out the relationship between the pre-university program and RMUTP attrition rate. In addition to the first objective this study aims to find the satisfaction of students toward the learning program. Using a mixed methodology qualitative and quantitative data were collected from students and subjects related to RMUTP pre-university program. In order to describe the research question those data were analyzed together. The results were as follows: 1. Rajamangala University of Technology Phra Nakhon has offered pre-university program for 3 years. This year there are 13 departments within 5 faculty offered the program. 2. A statistical analysis showed that 71.24 percent of the sample group was highly satisfied with the pre-university program. Twenty-seven percent was moderately satisfied with the pre-university program. Only 1.29 percent was less satisfied with the pre-university program. 3. The pre-university program is necessary and can influence students’ grade points. The sample group also suggested teaching subjects to be matched with the subject study in Semester 1. 4. During the past 4 year drop-out is still at the same number to all faculties regardless of the pre-university program. Therefore the cause of high drop-out number might come from other factors that cannot be cured by the pre-university program.

This research work was to study the improvement of toughness and impact resistance of polylactic acid (PLA) with modified soybean oil (MSBO) and palm fiber (PF). The detail of this work was divided into three parts. The first was to find the suitable condition for modification of soybean oil with ozonolysis. The second and last parts were to study the effects of MSBO and PF contents on the properties of PLA respectively. For oil modification the reaction times were varied from 0 to 3 hours and the chemical changes in molecules of soybean oil were investigated by Nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopies. The result suggested that the most suitable condition for ozonolysis reaction was 2 hours considering the decrease in double bond between carbon atoms and the increase in hydroxyl group into molecular structure of MSBO. For the effect of MSBO content on mechanical properties it was evaluated by tensile and impact testing. Differential scanning calorimeter (DSC) and scanning electron microscope (SEM) were used for thermal and morphology analyses. The result showed that elongation at break and impact strength of modified PLA by MSBO increased about 89 and 25 % compared to those of neat PLA respectively. MSBO act as the efficient plasticizer for PLA considering the conversion of fracture behavior from brittle to ductile good dispersions of MSBO droplets in PLA and the decrease of glass transition temperature (Tg) with addition of MSBO. The addition of PF improved the impact strength of modified PLA. Strong interfacial bonding between PLA and PF indicated MSBO being both coupling agent for PLA and natural fiber and plasticizer for PLA. For migration test it was found that contents of released heavy metal and migrated chemical from specimens of PLA and PLA/PF composite were under the criteria according to Notification of the Ministry of Public Health (No. 295) B.E. 2548.

In general the measured resistance with a digital multimeter. Users tend to be measured and then displayed on the screen to the user regardless of the value that is accurate or not. The value displayed on screen digital multimeter may be incorrect. As a result from wires access point measurement and other factor that affect to the value of measurement. Thus the study of factors that affect the measurement to get the accurate and more precise and also can be used in the operations. According to international standard quality system requirements for ISO are clearly on the meter or the measuring device must be calibrated and in the certificate specifies the gain calibration and the uncertainty of measurement. Therefore it is necessary to evaluate the uncertainty of measurement to comply with the standard splash. This thesis presents a study of the effect to the measurement resistance in 0.01 ohm to 100 mega-ohm by direct measurement for 2wire & 4wire Loading effect Using different kinds of conductors Thermal EMF and the stability of the resistor. Include the statistical analysis was used to estimate the uncertainty. From this study can be applied to measure the resistance in a variety of accurately and precisely.

This research aims to study and test a ceramic product in using to constructs a wall. This research is based on a previous studying to develop a ceramic product that saves the energy in the building. The early test shows the product has out door heat resisting capability and it is very user-friendly. However the test was only an early stage. The research still lack of a real life situation test and has very little feedback from the consumers. All of which are very importance to farther develop this product into a production stage. The research has 2 steps. First step to testing the heat and humidity resisting quality of the product the researcher is building four testing blocks (dimension 1x1x1 meter). Each block has different material on one of its side block 1 has brick block 2 has concrete masonry unit block 3 has autoclaved aerated concrete and block 4 has ceramic block. The other three side of each block have a heated and humidity resisting form. The researches test the following; heat energy the temperature inside the blocks and humidity inside the block. After comparing the difference between the airs inside and out-side of the blocks the block 2 with concrete masonry unit has the best humidity resisting quality and is the most user-friendly product. In the term of heat resisting block 3 with autoclaved aerated concrete perform the best. Second step to test the user-friendliness of the product the researcher found 2 groups of consumers. First group are the wall constructing expert. This group has a hard time using this product and can’t get use d to the product so they find this product to be too thin and too weak. Second group the home owner feel the product has a thinner wall and believe it’s weaker than a typical construction brick. There for they still don’t know how to use this product.

การวิจัยเรื่อง ปัจจัยที่มีผลต่อการใช้ระบบสารบรรณอิเล็กทรอนิกส์อย่างมีประสิทธิภาพ ของมหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร วัตถุประสงค์ของโครงการวิจัย เพื่อศึกษาพฤติกรรมการใช้งานระบบสารบรรณอิเล็กทรอนิกส์ ของบุคลากร มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร เพื่อศึกษาประสิทธิภาพการใช้งานระบบสารบรรณอิเล็กทรอนิกส์ ของมหาวิทยาลัยเทคโนโลยี ราชมงคลพระนคร และเปรียบเทียบประสิทธิภาพการใช้งานระบบสารบรรณอิเล็กทรอนิกส์ ของมหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร กลุ่มตัวอย่างที่ใช้ในการวิจัยครั้งนี้ บุคลากร สังกัดมหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร จำนวน 1270 คน เครื่องมือที่ใช้ในการวิจัย คือ แบบสอบถาม ผลการศึกษาพบว่า ผู้ตอบแบบสอบถามส่วนใหญ่เป็น เพศหญิง คิดเป็นร้อยละ 71.30 อายุ 31–40 ปี คิดเป็นร้อยละ 37.20 มีการศึกษาในระดับปริญญาโท คิดเป็นร้อยละ 42.70 สถานภาพการทำงานส่วนใหญ่เป็นบุคลากรสายสนับสนุน คิดเป็นร้อยละ 52.50 หน่วยงานในสังกัดเป็นคณะวิศวกรรมศาสตร์ ร้อยละ 15 ประสบการณ์ในหน่วยงานทำงานอยู่ที่ 2–5 ปี ร้อยละ 36 ส่วนใหญ่ทราบว่ามหาวิทยาลัยมีการใช้ระบบสารบรรณอิเล็กทรอนิกส์ในการรับ–ส่ง เอกสารภายในมหาวิทยาลัย คิดเป็นร้อยละ 96.40 ส่วนใหญ่เข้าใช้ระบบสารบรรณอิเล็กทรอนิกส์ทุกวัน คิดเป็น ร้อยละ 37.90 และส่วนใหญ่ผู้ตอบแบบสอบถามเปิดใช้งานระบบในช่วงเวลา 8.30–12.00 น. สำหรับประเด็นความพึงพอใจเกี่ยวกับประสิทธิภาพการใช้งานระบบสารบรรณอิเล็กทรอนิกส์ ส่วนใหญ่ผู้ตอบแบบสอบถามมีความพึงพอใจในระดับมาก ยกเว้นปัจจัยด้านความผิดพลาดในการรับ-ส่งเอกสาร มีความพึงพอใจในระดับปานกลาง