At present business globalization is highly competitive and so is hotel business administration. Therefore to maintain effectiveness and growth in hotel business administration appropriate strategies must be implemented especially in human resource management in order to enhance the personnel to effectively work up to their potentials. Knowledge management or KM is considered one of the best strategies to be introduced in hotel business administration. Conceptually stated KM aims at extracting tacit knowledge by using knowledge skill attitude and experience from the human resource in operation to create the viable learning organization in hotel business.

The purposes of the research were to create and evaluate the efficiency of Computerassisted Instruction Program for courses of Physical Fitness based on criteria 90/90 and to analyze the learning achievement of the student after using computer - assisted instruction. The samples were 20 first-year diploma students at Rajamangala University of Technology Phra Nakhon North Bangkok Campus. The researcher did the experiment by using pretest and then implementing the computer assisted instruction program for courses of Physical Fitness. After that the students did the posttest then the researcher calculated the efficiency of the computer - assisted instruction and analyzed the learning achievement of students after studying.The result revealed that the efficiency of the computer - assisted Instruction was efficient in criteria 90/90 and learning achievement increased significantly at 0.05.

The objective of this research was to find an appropriate mixing ratio of concrete with oil palm to produce concrete masonry units with properties equivalent or better than other conventional masonry materials. By trying out method the best proportion of Portland cement: sand: oil palm ash was found at 1:1:2 by weight. The ratio yielded a lightweight concrete with an average density of 766 kg/m3 and average compressive strength of approximately 90 kg/ cm2 which is higher than the minimum requirement of Thai Industrial Standards (TIS) 58- 2533 (1990) of 75 kg/cm2. Water absorption of this proportion was at an acceptable standard level of 20% by weight. From cost analysis the cost of a wall made with the obtained masonry units was about 100 baht per square meter cheaper than lightweight masonry units sold in the market. However the heat conductivity (K) was similar (0.194 W/mk). Moreover the manufacturing process of these masonry units is simple and can be run as a small local enterprise.

This research aimed to improve combustion burning system of boiler and to increase burning efficiency and use all out of the energy. The large boilers were used in the industrial factories which consume a lot of energy for production. The Increasing oil and gas fuel costs everyday cause many factories interested in energy saving with any technical engineering methods specifically for production costs and environment effect decreasing. This research program software was installed and invented for the industrial factory. This industry factory consumed cogeneration energy for fabric dying. The efficiency before installing the software is measured about 65.85-71.98% and heat loss by 50% of overall energy in the system. After installing heat loss in the system has been fallen to 5-12% and efficiency of heat in system has been reached a peak of 80-85%.

The results revealed that the manager๛s opinions towards operation of quality control and inspection of auto-parts at a high level were lineworkers in car accessory production plant and other production plant. The opinions of the office workers towards operation of quality control and inspection of auto parts at a high level were lineworkers in car body production plant car accessory production plant and other production plant. When comparing the operation level of quality control and inspection of plants classified by types of vendors it was found that there was a significant difference at .05 level. The collected data were analyzed by SPSS program into percentage mean standard deviation t-test one-way ANOVA and multiple comparison.