A design and development of powertrain module crash test using with the motorcycle crash test is aim to create a special tool for automotive assessment and safety engineering based on the realistic test. In order to main system of power module tester is consisting of powertrain system using electrical motor transferring system using chains and gears and control direction system using dual rails respectively. Based on powertrain module tester performance crashing speed relative angle between target and distance before crash are regarded. Nevertheless the result of testing performance was conducted to statistic hypothesis test by Mean Absolute Deviation: MAD Standard Deviation: SD Mean Square Error: MSE Mean Absolute Percent Error: MAPE and Root Mean Square Error: RMSE. The results of this approach discovered that the crashing speed was the highest error with 96% and the lowest was distance before crash. Furthermore it was corresponding to the statistic hypothesis test. However the result of the error was influence of the rails distance which limit by funding. In case of crash energy the mean of energy was appeared on 10.978 J. Whereas the tendency of variable was similar to polynomial equation.

The development of lightweight flat sheet prototype from para rubber leaves and para para rubber wood fly ash for field work application can offer an alternative method of adding value to agricultural wastes and help to conserve the environment with green products. The natural fiber especially agricultural waste fiber is an encouraging prospect. Natural fiber composites have been used for building applications. The aim of this research was to investigate the potential use of para wood ash to producing a cement composite as an environmentally material. Material. The cement paste with 5-2 % weight of para wood ash. The specimens were cured at 25± 2 oc for 24 hours. The properties of cement composites mixed with different proportions of para wood ash were compared with Ordinary Portland Cement (OPC). In addition the morphology of para wood ash was examined by using scanning electron microscope. The density increased with the increase in the percentage of para rubber leaves from 1% 2% 4% and 6%. The finding is attributable to the enhanced packing density by the fine para wood ash particles size was found 5-10 um.Moreover para wood ash particles could arrange to fill the inter-particle voids in cement pastes which resulting to increase the compressive strength of cement paste. Consequently para wood ashes could incorporate in the construction materials to enhance the mechanical properties and durability performance of the cement composites

This research was aimed to study the participation behaviors in the electrical energy saving the factors affected to the participation behaviors and the promotion of the participation behaviors in electrical energy saving of the undergraduate students of the Faculty of Science and Technology Rajamangala University of Technology Phra NaKhon. The participants of 150 students from the Faculty of Science and Technology was also performed based on systematic sampling. The questionnaire was used. The statistical evaluation was also analyzed based on the percentage mean and standard deviation. A 85% of participants is male a range of age to be 19-20 years old (62.7%) second academic years by about 37.3% and a 65.3% of participants has been studying in the major of computer science. Knowledge levels in the electrical energy saving of the most participants are high (13.33%) moderate (62%) and low level (24.67%). The four participation behaviors in the electrical energy saving were analyzed including electrical lighting system air conditioner and ventilator system office electrical system and electrical equipment maintenances resulting in very high level with the average mean of 4.25 and standard deviation of .547. First the participation behavior in the electrical equipment maintenance was very high level with 4.31 and S.D.=.870. Second the participation behavior in the office electrical system was to be 4.27 with S.D.=.828. Third the participation behavior in the air conditioner and ventilator system was to be 4.21 with S.D.=.549. Finally the participation behavior in the electrical lighting system was very slow level with 4.21 and S.D.=.672. By comparing the participation behaviors in the electrical energy saving with the different of academic major of students the participation behaviors in the electrical energy saving did not significant different.

This research aims to study perception and understanding about being a digital university and to study and analyze the factors that affect digital university. There are benefits to be given as a guideline in determining the direction of university operations in line with future change conditions. And it is a way to develop a university into a digital university. Population used in this study was 1250 people from staffs at Rajamangala University of Technology Phra Nakhon. The sample consisted of 339 questionnaires. Collected data were analyzed using the frequency distribution percentage mean and standard deviation. Initially the researcher has studied factors that affect the development of the university into a digital university based on data and theories. After that the researcher conducted a survey with the sample group. The results showed that : 1.People who have ever perceived information about being a digital university about 74.04%. Overall the response correctly was 78.73% on average and more than 3 items were correct in 5 items totaling 228 persons representing 90.84%. 2) Opinions on the factors affecting the development of the university into a digital university as a whole was classified in a high level the average was 4.18. When considering each aspect showed that the significant factors in a highest level were the management of the organization the average was 4.26 and the structure of digital technology within the university the average of 4.25 respectively. Significant factors in a high level were personnel average 4.15 and teaching quality were 4.07 respectively. When considering each item showed that the significant factors in a highest level were 1) the efficiency of the Internet and wireless internet 2) the support budget 3) the digital skills of the personnel in the operation. And the ability of teachers to use digital technology in their teaching and 4) Classroom / Laboratory Supported for Digital Technology. Therefore universities should: 1) Give importance to knowledge building and attitudes. Accurate to prepare personnel for a digital university. The cover every unit in the University to encourage adaptation to ready for change to be a digital University. 2) And set policies that are digitally linked to all university visions and strategies; The Including to clear operational framework linked to the mission. 3) Manage the digital structure of the digital system in a systematic and current develop high-speed internet and high-speed wireless internet to provide stability and signal coverage for all areas of campus. 4) There are many of IT personnel who are knowledgeable enough to meet the needs of university departments. IT staff must be able to provide advice modify or facilitate the use of IT to personnel and students. 5) There should be a technology-based curriculum. To provide students with the skills to use a variety of technologies. Can be used in the occupation and the labor market. In addition should also develop a classroom that supports digital technology to keep pace with the changing world society.

This research aims to develop the coconut coir and fiber indoor acoustic and thermal insulation boards mixed with natural latex. The 5 ratios of coconut coir: coconut fiber: natural rubber were equal to 0.1: 0.9: 0.1 0.1: 0.9: 0.15 0.1: 0.9: 0.2 0.1: 0.9: 0.25 and 0.1: 0.9: 0.3 by weight. The indoor acoustic and thermal insulation boards were produced by knitting the coconut coir and fiber spraying the natural latex and heat compressing. The properties testing of indoor acoustic and thermal insulation boards included the density test water absorption test tensile strength test thermal conductivity test sound protection efficiency test and real usage test. From the results 0.1: 0.9: 0.15 ratio is the most suitable ratio of coconut coir and fiber indoor acoustic and thermal insulation board mixed with natural latex. The natural latex which putted in these indoor acoustic and thermal insulation boards can reduce the water absorption and increase tensile strength and sound protection efficiency.