จำนวน Repository ( 15 )
การศึกษาผลกระทบของขนาดโหลดเซลล์ที่ส่งผลต่อค่าความคลาดเคลื่อน
The objectives of this research is to study the relationship between tolerance and measurement range of load cells. Tolerance test kit length of mass beam 90 cm was used. It can create the compressed force at the load cell more than 1 kN. The experiment cam be divided into 2 stages; 1.) verification of load range and 2.) linearity test. Both stages are tested at a temperature at 25°C using 10 to 30 kg of mass in the lowest compressed force condition of 0.091 kN and the maximum compressed force condition of 1.12kN As a result the linearity performance of the tolerance of the load cell test kit between calculated force and displayed value force are different 0.354 percentage only while the standard deviation of displayed value force and voltage signal output are 0.0013 and 0.0022 respectively. It reveals that the experimental result is reliable because of less than 1. In addition the tolerance of the load cell tolerance testing machine is 0.00300 (0.3 percent) which was calculated from the comparison of the tolerance specification of two main equipment that specified by manufacturer.
การศึกษาสถานะบีบอัดของแสงในวงแหวนสั่นพ้องแพนด้า
The propagation of photon states in a nonlinear micro - PANDA ring resonator are studied and analyzed. The squeezed state representation of photon can be achieved via four – wave mixing process in the micro-ring resonator. The effect of thermal noise is also studied to optimum the validity of the next application in the CPU of quantum computer.
การทบทวนวรรณกรรมอย่างเป็นระบบและวิเคราะห์อภิมานคุณลักษณะที่สำคัญด้านวิทยาการหุ่นยนต์เพื่อการศึกษา
This article aims to synthesize literatures in Educational Robotics and presents key features of systematic literature review and structured meta-analysis of the literature. Population consists of 247 papers from 10 databases ranging from 1996 to 2012. Results show that common problems in Educational Robotics are high cost of tools license and differences in students’ background knowledge. Trends of existing researches focus on development of software and low cost robot training package in order to promote students’ practice in problem-solving skills and teamwork in experience-based learning to enhance self-motivation and experience with real world applications. It was also found from the synthesis that qualitative-based evaluation of tool and learning achievement process was rare even though it is a key factor that indicates quality of learning process.
การขาดคุณธรรมความซื่อสัตยฺ์ในการเรียนของนักศึกษา
This research was aimed to study the types of lacking the virtue of honesty in students learning and the relation between variables of persons and students characteristics and the types of lacking the virtue of honesty in students learning. This study was descriptive research. The target subject was 389 students of the Faculty of Liberal Arts. The research instrument was questionnaire survey. Data were analyzed through use of percentile average standard deviation and Chi-square. The results were as follow: 1.1/3 of the third year students of the Faculty of Liberal Arts were female. The grade point average (GPA) was 2.81. 2.Types of lacking the virtue of honesty of students learning in subjective norms the subjects disagreed at a low level (x =4.41). As for attitude toward lacking virtue of honesty in learning the subjects disagreed at a low level (x =5.02).as for the perception of the virtue of honesty control the subjects disagreed at a low level (x =4.67).As for the intention to be dishonest in learning the students disagreed at a low level (x =4.63). A quarter of students (24.4%) has never lacked the virtue of honesty in doing tests. Nine tenths of students (87.4%) copied their class excercises or passed them among friends. A quarter of students (28.8%) has never cheated in doing class reports and a quarter of students (24.55) has never been in lacking the virtuous state. 3.The study of the relation among variables revealed that there was a significant difference at .01 level between persons variables -years of study and GPA and subjective norms variables -attitude toward lacking the virtue of honesty in learning perception of the virtue of honesty control intention of not lacking the virtue and the frequency of behaviors of lacking the virtue.
Problems and Student's requirements to the Faculty of Industrial Education in Educational management
The objectives of this survey research were to study the problems and students requirements to the faculty of Industrial Education in educational management The classifications were problems and requirements of instructors subject description instruction measurement and evaluation educational management buildings and audiovisual aids and service. The samplings of students in three fields which composed of 256 full time students and 100 part time students total of students were 356 were randomized by Krejcie and Morgan method. The tools used in this stuby were the questionnaire about the problems and students requirements to the faculty of Industrial Education in educational management. Data were analyzed by Percentage Mean standard deviation Heat and F-test.