This research aims to design and development of Industrial sewing machines to use for people with disabilities. Including study of Efficiency and performance of the equipment the installed sewing to assist in the sewing machine for disabled legs Conducting experiments by the target audience disabled leg from accident and leg disability from birth must use a wheelchair. By the disabled been experimenting with industrial sewing machines. For disabled legs Sew aprons in the 2 weeks. The results showed. That sewn of aprons by industrial sewing machinesfor person of disabled legs Can be sewnusing time of sewing/piece in week 2 of disabled leg from accident. And leg disability from birth. Decrease 25.09 percent and 40.07. and the number of pieces that have increased of industrial from period use of sewing machines. The average satisfaction of the design and use of industrial sewing machines for person of disabled legs are highest levels of 4.5 and 4.6 respectively

The first purpose of this research is to study the using of personnel management system of Rajamagala University of Technology Phranakhon. Secondly the satisfaction in system using is suggested. The investigation and gathering information from university workers are done by questionnaire of satisfaction. The information is evaluated by using frequency percentage mean and standard deviation term. The reliability of two samples is tested by t-test using Alpha Coefficient of Cronbach and the reliability of more than two samples is tested by One Way Analysis of Variance. The results showed that the efficiency of using the personnel management system is the same as the system which is used in division of personnel management administration and division of general administration. The setting manual and log out of system which used in sub-system of each role are consistent with research hypothesis. The analysis of satisfaction of all workers between sexes (male and female) and between duties (support and academic staff) showed that the satisfaction in personnel management system is at high level. The university plan to develop the system continuously to face the changing and the present.

Now is a great time to be an entrepreneur as there are many solar business opportunities to develop. The market for solar products is growing quickly over last year so now this market is helping people get the most from the sun. The market and can be a great source of ideas for usage in the home and with your business. To measure efficiency of the solar energy in Thailand we have installed and tested the solar cell to detect and record the voltage electric current electric power temperature on the solar cell outdoors and check factors related to efficiency of the solar cell when high temperature and efficiency of the solar cell in various weather conditions. The following is the summary of average Wattage and used the Cumulative Sum Control Chart techniques. The Resulting research shows the direct current electric supply below: Solar cell “A” current distribute 85.78 W Solar cell “B” current distribute 81.19 W Solar cell “C” current distribute 95.65 W The temperature on the solar cell can be seen below: Solar cell “A” is 53.88 °C Solar cell “B” is 53.68 °C Solar cell “C” is 52.79 °C Summary of result is the solar cell “C” has highest electric power and the least temperature and this solar cell “C” suitable for use in Thailand. This research results is only relevant when deciding which solar cell to select

This research work was to study the effect of moisture on mechanical properties of wood/polyvinylchloride composites (WPVC). WPVC specimens in ratio of PVC and wood (100:100 by weight) were prepared by using twin screw extruder. The water conditions for WPVC specimen immersion testing were varied for temperatures of 30-70 oC and specimen immersion time of 0-120 h. The moisture effect was investigated by measuring flexural properties and hardness of WPVC as comparing with case of PVC specimen. The result suggested that flexural modulus of WPVC tended to decrease with increasing time of water immersion and then remained unchanged at immersion time of more than 72 and 48 h for water temperature of 30 and 70 oC respectively. The decrease rate in flexural modulus enhanced when water temperature increased. Flexural modulus of PVC slightly changed with increasing both immersion time and water temperature. Flexural strength for both PVC and WPVC specimens were found the change at water temperature of 70 oC only. Flexural strength of PVC tended to slightly increase with increasing immersion time whereas flexural strength of WPVC slightly decreased with increasing immersion time. Hardness of PVC specimen in cases of both water temperature of 30 and 70 oC slightly increased with increasing immersion time. For WPVC hardness tended to decrease with increasing immersion time and water temperature.