The purposes of the research were to create and find efficiency validation of computer assisted instruction focused on the information retrieval practice to record data for report writing for the standard 80 / 80 and analyze the student learning achievement after using computer assisted instruction. The samples were the 23 Diploma students enrolled in Rajamangala University of Technology Phra Nakhon North Bangkok Campus. The Researcher experimented by using pretest and then using the computer assisted instruction focus on the practice to prepare specimens in learning next the students did the posttest . After that the researcher calculated to find the computer assisted instruction efficiency and analyzed the students leaning achievement after studying. The result revealed that the computer assisted Instruction efficiency was efficient for standard 80 / 80. And after studying by using computer assisted instruction. the students learning achievement increased significantly at 0.05.

This research report of the Aluminum Can Recycle Machine Project is contrived the experiments at Rajamangala University of Technology Phra Nakhon by the hydraulic pressure. Nowadays the cans make by luminum material very useful in several liquid packaging industries. When people consumed the liquid inside the cans then the cans are worthless. But the cans can be recycling from the waste material. Although we have to reduce the waste materials to follow our world as improvement. From the reasons that we mentioned we decided to start the Aluminum Can Recycle Machine research project to keep him or her eager to put the cans to the machine for consumer then encourage them by giving something back such as a candy or a rubber etc. The system working by a PLC it controls the hydraulic pressure receives the sensor signals and displays status via the 7-segment panel. The machine accepts the standard beer can and the soda can for 10 cans a time in a slot when consumer put the cans into the can receiver block the machine gives a candy back to a consumer. After a receiver-block has the 40 cans inside the machine pressing the cans at once then releasing it to collector block.

The purposes of the research were to create and find efficiency validation of computer assisted instruction focused on the practice to prepare specimens in Metallurgy for the standard 90/90 and analyze the student learning achievement after using computer assisted instruction. The samples were the 20 first year Bachelor of Science in Technical Education students enrolled in Industrial Engineering Rajamangala Institute of Technology North Bangkok Campus. The researcher experimented by using pretest and then using the computer assisted instruction focus on the practice to prepare specimens in learning next the students did the posttest. After that the researcher calculated to find the computer assisted instruction efficiency and analyzed the students leaning achievement after studying. The result revealed that the computer assisted Instruction efficiency was efficient for standard 90 / 90. And after studying by using computer assisted instruction the students learning achievement increased significantly at 0.01

The purposes of the research were to create and efficiency validation of computer assisted instruction focused on the practice to CNC Tuming of the standard 90 / 90 and analyse the student leaning achievement of the student after by using computer assisted instruction.The subjects in the study were 23 first year diploma students enrolled in Computer Numerical Control Rajamangala of Technology. North Bangkok Campus. The Researcher using the experiment by let the students do until test before class. And then study by using computer assisted instruction focused on practiced to CNC Turning. After that let students do the unit test again at the class and calculate to find out the efficiency of the computer assisted instruction and analyse the leaning achievement of students after study. The research result revealed that the efficiency of the computer assisted Instruction was efficient in standard 90 /90 Moreover after learning achievement At significant level of 0.01

The purposes of the research were to create and find efficiency validation of computer assisted instruction focused on the Basic Plumbing for the standard 90/90 and analyze the students’ Learning achievement after using computer assisted instruction. The samples were the subjects used in this research were the students 20 person the first – year students Diploma of Metal Technology in the Faculty of Engineering at Rajamangala University of Technology Phra Nakhon The researcher experimented by using pretest and then using the computer assisted instruction focus on the Basic Plumbing next the students did the posttest. After that the researcher calculated to find the computer assisted instruction efficiency and analyzed the students’ learning achievement after studying. The result revealed that the computer assisted instruction efficiency was efficient for standard 90/90. And after studying by using computer assisted instruction the students’ learning achievement increased significantly at 0.05.