This research was aimed at studying 1) an outcome of the Continuing Professional Development (CPD) for Thai business bookkeepers under the Accounting Act B.E.2543 (2000) for Asean Economic Community and 2) an evaluation of the Continuing Professional Development (CPD) for Thai business bookkeepers under the Accounting Act B.E.2543 (2000) for Asean Economic Community in terms of casual relationship of knowledge and attitude with practice. The questionnaires were constructed as a research tool for collecting data from 398 Thai business bookkeepers. The data was statistically analyzed by SPSS version 16.0 and AMOS version 6.0 with frequency distribution percentage mean standard deviation and Structural Equation Modeling: SEM. In regard to the outcome of the Continuing Professional Development (CPD) the research finding indicated that the sample group had knowledge for the Continuing Professional Development (CPD) at high level ( =0.77). Their attitude was agreeable to the Continuing Professional Development (CPD) ( =3.63). Also they had practice on the Continuing Professional Development (CPD) at adequate level ( =0.74). In regard to the evaluation of the Continuing Professional Development (CPD) for Thai business bookkeepers under the Accounting Act B.E.2543 (2000) for Asean Economic Community in terms of casual relationship at a statistical significance of 0.05 the research finding indicated that knowledge and attitude had casual relationship with practice on the Continuing Professional Development (CPD) under the Accounting Act B.E.2543 (2000) for Asean Economic Community and knowledge had casual relationship with attitude of the Continuing Professional Development (CPD) under the Accounting Act B.E.2543 (2000) for Asean Economic Community. Furthermore this developed casual relationship model used for evaluating the Continuing Professional Development (CPD) for Thai business bookkeepers under the Accounting Act B.E.2543 (2000) for Asean Economic Community was created consistently with empirical data and had ability to predict at good level and acceptably because the correlation was 81.6% which its acceptance was more than 40%.

This article presents how the analysis an insulation of high voltage transformer bushing. The purpose is to analysis the moisture in the bushing to evaluate the approach for maintenance. The analysis rely on the principle of the Polarization and Depolarization Current (PDC) technique which is a technique for analyzing the insulation of high voltage equipment to test high voltage transformer bushing for a case study. This method is performed by energize 1000 Vdc into a bushing in period of time and then switch off the circuit for discharge current. Finally we calculate the moisture of main insulation of high volt bushing as well compare with standard moisture of criteria. The method is useful of preventive maintenance plane of high volt bushing and reduce the failure in the power system.

This research had a main purpose for studying the utilization of water hyacinth as the key component of paper production mixed with the agricultural waste as pineapple leaves and leaf sheath of banana tree. The paper pulps were prepared from 5 g/l NaOH at 90-95oC for 3 hours then bleaching with 5 g/l Hydrogen peroxide at 90-95oC for 30 minutes. The whole pulps were detached improvement with 5g/l Acramine 3187 before paper establishment production. Finally the strength of obtaining papers was consideration and competition to any craft paper type. As the results the appropriate ratio of paper was 70% water hyacinth (stem) 10% pineapple leaves and 20% leaf sheath of banana tree. It had 31.19 kN/m2 for bursting strength tearing strength as 309.17 mN and 0.49 mm thickness. The basis weight was 183±5 g/m2. The achieved paper was equivalent as KI craft paper. It was presented for packaging boxes and other procedures.

This paper presents about the defrosting time of evaporator in refrigerator by using the temperature different between evaporator and chilling area. This temperature different concept could control the defrosting system to operate according to the load. It also helps controlling the operation of fan motor to be able to operate in accordance with the defrosting time. In general system the timer is set at the highest humidity season which cause the unneccessary defrosting cycle even in low humidity season. This general system create the west of power usage colling system. These can cause time-consuming in defrosting process in the low humidity season and cause the unnecessary usage of power to cooling system. This research is to develop the controller for the defrosting system at evaporator from the investigation. As the results we have found that the defrosting system at evaporator according to its load made the refrigerator can decrease the power about 8% when comparing to constant time evaporator system

After a propeller shaft was damaged from chloride in sea water it has been fixed by MAG welding process with flux cored wire. Its service life after welded depends on the corrosion resistance of the weld metal. This research aimed to compare the corrosion resistance of two different weld metals between X111-T5-K4 and E71T-1CH8/T/9M-D flux core wire. The test specimens were prepared according to the ASTM G1-103 standard and tested by salt spray test conforming to the ASTM B 117 standard. The result of the test showed that the corrosion rate of the weld metal using X111-T5-K4 flux cored wire is lower than the weld metal of E71T-1CH8/T/9M-D flux cored wire which was 0.21 and 0.32 mm2/hr. respectively. The mass loss at 24 hours of E71T-1CH8/T/9M-D X111-T5-K4 flux core wire were 0.32 and 0.48 grams respectively. Therefore enhancing the service life of propeller shaft from chloride corrosion should use X111-T5-K4 flux core as weld metal