This research aims to study the application of kaolin with coconut meal plywood from corncobs and durian peel in concrete masonry unit wall for increasing effective heat protection and lightweight. The ratio of cement type 1: kaolin is equal to 1: 60 by weight. The kaolin is replaced by fiber include coconut meal fiber corn cob fiber durian peel fiber with 1.67% 3.33% and 5% by weight of kaolin. The kaolin concrete block mixed with fiber sample size is formed to 6.9 x 39 x 19 centimeter with the hydraulic compactor. The samples tested in physical and mechanical properties follow the TIS 58-2533 standard. Resulting their fibers can reduce the density thermal conductivity and compressive strength and increase the changing length and water absorption of kaolin concrete blocks. The kaolin concrete block without fiber has highest compressive strength followed by the kaolin concrete block mixed with corn cob fiber the kaolin concrete block mixed with coconut meal fiber and the kaolin concrete block mixed with durian peel fiber has lowest compressive strength respectively. However their fibers have possibility to be composite materials to reduce weight of kaolin concrete blocks.

The research aims to study the factors affecting on lerning achievement of industrial education faculty students at rajamangala university of technology phra nakhon. the sample population included 254 students from induatrial education facuity students. the questionnaire was a research instrument. analysis statistics was done by fraqquency percentage arithmetic means standard deviation and test the relationship between learning achievement with factors affecting on learning achievement bypearson product moment coefficient correlation analysis of the multiple regression to predict learning achievement. the research resuits can be summarized as follows : 1. Overall learing achievement was highly rated. 2. Characteristics leamers factor psychological characteristics behavior between teachers and students individual behavior extermal driving force have a positive relationship on learning achievement of students were relations are positive achoevement on learning achievement of students in the faculty of industrial education were found significantly different at the 0.05 level.

This survey research has a purpose to study the personality of students at the Mechanical Engineering Department Faculty of Industrial Education Rajamangkala University of Technology Phranakhon. The improvement of test questionnaire 16 PF (Sixteen Personality Test ) of Raymond B. Cat Resort from the total of 108 students who using a tiered Iandscape sampling (Stratified Random Sampling). Students from Mechanical Engineering. Tools used in evaluation of research data using a questionnaire and data analysis methods.Calculate overall percentage of arithmetic mean (arithmetic mean) on median comparisons t-test and F-test of students personality areas. Research results can be summarized as follows. 1. Personality with a teacher of mechanical cngineering students by age showed that all of the moderates.The average of the maximum a person is sincere and guileless disclosed. 2. Personality with a teacher of mechanical engineering students by age is found that the older students have different personality. And students over 27 years pf age are not timid than courageous. Students aged belwecn 23-27 years. 3 Personality on a teachers student in meehanical engineering disciplines. Ievels by an average score found that students with different rate lcvcls. It is a personality who loves to collect dissociation. Different found that students with grade lowcr than the2.00 level as people like humility. Different Found that students with grade between2.01 to 2.99 4.Personality on a teachers student in mechanical engineering disciplines. by classs year study.shows.students leam in diflcrent class years are.Pcrsonality is about people like humility and Dissociate diflerent. 5. Personality with a teacher of mcchanical engineering students by class year to find a more different pair were found about a person who loves to collect. Dissociate it. Students who study in year1 class who likes to collect. Dissociate more. Students studying in year 3 th but this year found that about understanding Students learn in class at 1year in higher than intellect. students studying in year 3th years.

This research aims to study the application of coconut meal corn cob and durian peel as wood-substituted biocomposites in medium density fiberboard. The fiber: urea formaldehyde glue: isocyanate glue with polymeric diphenymethane diisocyanate type (pMDI) ratio is equal to 1: 0.13: 0.003. The fibers are taken from coconut meal corn cob and durian peel that 7 ratios are used to all of fiber mixing. The fiberboard production use 130°C of temperature with 20 – 50 kg/sq.cm of compressive pressure with 8 minutes per piece of rate. Their fiberboards have 603 – 856 kg/m of density that was tested follow the TIS 876-2547 standard. Resulting the MM33 ratio (coconut meal fibers: corn cob fibers: durian peel fibers is equal to 0.33: 0.33: 0.33) and the CC50 ratio (coconut meal fibers: corn cob fibers: durian peel fibers is equal to 0.50: 0.25: 0.25) can pass the standard in physical properties and mechanical properties. Moreover their fiberboards have good thermal insulation.

งานวิจัยนี้มีวัตถุประสงค์เพื่อใช้ในงานวัดอัตราการเป็นสนิมของโครงสร้างคอนกรีตเสริมเหล็กโดยทั่วไป มักจะได้รับผลกระทบจากการเกิดสนิมของเหล็กเป็นส่วนมากเป็นผลให้กำลังของโครงสร้างคอนกรีตลดน้อยมีการพบการเสื่อมสภาพของโครงสร้างจากเหล็กเสริมเป็นสนิมอย่างแพร่หลายโดยเฉพาะโครงสร้างที่อยู่บริเวณชายฝั่งทะเล โดยสาเหตุสำคัญส่วนใหญ่ที่ทำให้เกิดสนิมมักเกิดจากคลอไรด์ซึมผ่านคอนกรีตเข้าไปถึงเหล็กเสริมและเมื่อคลอไรด์ซึมผ่านเข้าไปในคอนกรีตจนถึงระดับของเหล็กเสริม มีปริมาณมากเพียงพอก็จะทำลายฟิล์มที่ป้องกันที่ผิวเหล็กเสริม และทำให้โครงสร้างคอนกรีตเสริมเหล็กนั้นเกิดสนิมสะสมเพิ่มขึ้นเพียงพอที่จะทำให้เกิดหน่วยแรงและดันให้คอนกรีตเกิดความเสียหายเป็นผลทำให้กำลังของโครงสร้างลดน้อยลงจนไม่สามารถรับกำลังได้อีกและโครงสร้างจะเกิดการวิบัติในภายหลัง