Currently transport has played an important role in everyday life resulting in huge traffic jams caused by big city streets and pollution problems from global warming to global temperatures are rising. Since humans are creatures that prefer comfort in all areas which contrasts with the higher temperatures of the Earth. Currently the use of air conditioning a lot. To modify the temperature is reduced in the range 2 3 to 25 degrees Celsius makes people feel comfortable. However the use of air conditioning in the car cabin cooling efficiency can be increased to a higher level than it is by cooling the refrigerant. The aim of this research is to test and compare the performance of car air conditioning systems usually equipped with a heat exchanger. Using water from the condensation of evaporator as a medium for heat transfer. By installing the equipment at the outlet of the condenser. This causes the temperature of the refrigerant is low. The pipe lengths in the equipment from the calculation of 1 .2 meters and copper lines that increases the length of the tubes was calculated to compare with a length of 1.6 meters to test the speed of the compressor 1000 1500 2000 and. 2500 rpm and a wind speed of 20 35 and 50 kilometers per hour. The results of experiment found that the temperature refrigerant equipment decreased from an average of 1.6 degrees Celsius the pipe length of 1.2 meters and 1.6 meters of pipe temperature drops 1.8 degrees average temperature attended Eva sufficiently reduced operator. It increases energy efficiency ratio averaged 6.68% of the pipe length 1.2 m and 22.24% at a length of 1.6 meters as well as to increase the coefficient of performance of the air conditioning system. 6 .6 9 % of the pipe length of 1.2 meters and a length of 1.6 meters at 22.4% with the key factor in optimizing the cars air conditioning system. Making the refrigerant from the condenser the temperature drops to pull heat out of the cabin through evaporator higher.

This research aimed to study Thai and foreign tourists about development guidelines of historical tourist attraction. 400 Thai and foreign tourists who came to travel at Ayutthaya Historical Park Ayutthaya province. A questionnaire was used as a research instrument. The statistics used for analyzing data were percentage mean and standard deviation. The results revealed that most the tourists were female ages 31 – 40 years old. Their education backgrounds were Bachelor’s degree. Their occupations were private companies. Their were Thai and Foreign. In general The Development Guidelines of Historical Tourist Attractions. The first of development guidelines were Attractive Factors (To what extent does each of the followings attract tourist?) and next were The capabilities to support tourism (To what extent does each of the followings support tourism?) and Management and Administration (To what extent does each of the followings affect tourism?). The top 5 of development guidelines were The remarkable and unique history Architectural and artistic beauty Greatness a good image and recognition Enough accommodations and Convenient access to tourist destinations

The topic of this research is the study of the changes of tourism maket in Thailand that has an effect on the tourists behavior. The problem concerns the decision making of tourists the information accessibility and the attitude of tourists the expectation and the satisfaction concerning Medical tourism. This qualitative research explained the tourists attitude and the creation of competitive advantage from customers perspectives as tourist in the medical tourism business. In the depth-interview of tourists the decision making process the expectation and satisfaction of customers in medical tourism were explained and measured based on the understanding of customer and the pre/post experience of the medical tourism service. The objectives of this research were to create the service repurchasing Internet information sharing and the media accessibility for tourists and perspective who would like to travel in Thailand and other related topics concerning medical tourism in Thailand. In conclusion the group of author argues that the information accessibility in this medical tourism to local and global tourists are limited and the business owners and others should play important role to effectively present the idea and concept of the medical tourism to the prospects and the existing customers in order to generate more income and gain more distribution channels. Finally the group of author identify the creation of the competitive advantage of medical tourism by reacting to the customers requests and requirements and also the information providing and accessibility throughout the media channels. Moreover creating the brand image and cooperating with government for the medical tourism theme under the government support in thecurrent national development plan would make substantially different from the existing situation for all of the players in this market.

The objectives of this research are to study marketing mix factors of banana flour in bakery business to study organizing factors of banana flour in bakery business and to provide them marketing guidelines of banana flour in bakery business. The research instruments used for data-gathering were semi-structured interview. The results of the interviews were created by using independent variables in questionnaire. The samplers of this research composed of 196 bakery business with 100% response rate. The results were as follows : The marketing mix factors of banana flour in bakery business in price place product and promotion were at high level respectively. The organizing factors of banana flour in bakery business in buying center environment organization and individual participants were at high level respectively. Recommended marketing guidelines the marketing of banana flour in bakery business are providing features and benefit of banana flour on the packaging label for a better understanding setting the price of banana flour pricing banana flour over the dough to add more valve distributing banana flour to bakery store and related using marketing online to promote banana flour creating a long term plan for a stronger banana flour market and studying organizational structure of bakery business by focusing on purchasing authority.

This research aims to 1) improve quality of processed herbal product by developing recipe and production procedures 2) develop packaging of processed herbal products in oder to add value exhibit uniqueness and response to customers’ need and 3) transfer technology and body of knowledge about improving products’ quality and developing packaging of processed herbal products. Results from developing of recipe and production procedure of kaffir lime in syrup show that period in boiling kaffir lime before sweetening in syrup has an effect on textures. The suitable period of 5 minutes for boiling kaffir lime results in reducing hardness of kaffir lime core increasing lightness and gaining the highest sensory scores from testers. The suitable amount of fructose syrup used in place of sugar in producing sweetened kaffir lime at 80 percent of sugar weight results in increasing lightness reducing hardness increasing value of red color (a*) and aw when compared with the control group and increasing quality of texture with the highest sensory scores from testers. Quality of microorganism appearance color ordor and texture of sweetened kaffir lime stored in tight-closed polypropylene (PP) bag at room temperature could be maintained for at least 24 days. Regarding satisfactory in packaging prototype it was found that customers were highly satisfied in both overall (4.48) and by aspect of packaging form (4.48) and packaging graphic (4.49). In terms of transferring the technology to a target group of 30 people it was found that trainees were highly satisfied with the technology transfer process (4.56). The highest satisfaction level by aspects was usefulness of service at 4.64 followed by service of staff trainers and service procedure at 4.58 4.57 and