Rail transport is a type of transportation that strongly influences economic due to its ability to transport a large number of passengers and products per trip relying on diesel-electric engines. The objectives of this thesis were set to investigate and develop the electrical performance tracking system of long-distance diesel electric locomotives and compare the electrical performance measured by the diesel electric locomotive performance tracking system and measured from the measuring instrument at Diesel Engine Maintenance Station in Bang Sue. The electric diesel locomotive no. 4513 (Cummins KTA50-L) was selected as the study subject of the experimentation. The results showed that the power loss of the diesel electric locomotive from the conversion of alternating current to direct current was inversely proportional to the engine speed. The power losses between the low and high engine speeds were equal to 77.11 and 2.49 percent respectively. The above data reflects the limitation of diesel electric engine performance and should lead to the construction of a database for making decision on the right engine selection suitable for the towing load of the locomotive.

Nowadays Eye Tracking Technology is one main challenge for developers of new human-computer interface. This technology provides a more natural way of interacting with a computer system by user’s eye. Now commercially available systems exist; however they are not widely used because of expensiveness. This paper describes a tutorial that shows step by step how to build a low-cost eye tracker using eyeglass setup. The glasses are designed to work with video-oculography technique (VOG) in the infrared spectrum. The key features of the eye is a center of the pupil. The gaze point of users are estimated based on order polynomial regression (linear quadratic and cubic). This research conducted an experiment with 30 participants tested eye-gaze calibration. Consequently the experimental results showed that eye-gaze can be estimated in real-time while the cubic function can be accurate eye-gaze position more than the other function.

This paper presents the design of automatic watering system using sun tracking as an energy source .The objective is to design the automatic watering system for fruits grown in both areas without electricity. The solar panel can be moved along the direction of the sun cover an altitude - azimuth dual axis as an energy source of the system. The 20 longan trees are used in the experiment. The DC motors and the solar panel is controlled and rotated by the microcontroller to the position of the maximum light intensity. The watering system section will use a technique to measure the soil moisture sensors ECHO2-20 with real time PC based monitor system by Visual Basic Studio. As for the experiment results it was found that the energy stored by the developed solar tracker increased to 17.72 percent in comparison to a solar panel fixed installation. The watering appropriate soil moisture content is 12 percent and stops at 25 percent resulting for the garden moderators to save time and labor.

This research aims to develop software defect tracking and management system for faster performance of software development team. The proposed system will allow the team to interact with each other more effectively in each software project which can lead to better communication and minimal misunderstanding. The advantage of the research is to simplify the software defect tracking and management system. Software development team who works in medium software company was interviewed to gather requirements of the system. Agile methodology was used in the system development process. Evaluation of the developed system was performed through test cases and users satisfaction. Results of the research indicate that the development team was satisfied with this system in high level. Furthermore this system could reduce the duration of defect tracking and management by more than 15 percent. However online user manual should be provided for faster study and practice with the system.

Tracking Rajamangala University of Technology Phra Nakhon Graduates: Focusing on Bachelor of Technology is done in order to meet 2 objectives; following Bachelor of Technology graduates after graduation and studying satisfaction of work market to those Bachelor of Technology graduates. Sampling group composes of Bachelor of Technology graduates who graduated from Rajamangala University of Technology Phra Nakhon in 2006 and workplace that hires Bachelor of Technology graduates. Using survey research method questionnaires are distributed among those groups. Data were collected and analyzed using statistic program to find frequency percentage standard deviation and mean.