The objectives of this research were to investigate risk factors for Dengue fever in Thailand and to select an appropriate model. The generalized estimating equation (GEE) whose dependent variable has a Poisson distribution and a negative binomial distribution were studied. The secondary data consisting of the number of Dengue fever patients rainfall average temperature forest area household income were collected. Regions and seasons were also considered. The research found that the GEE whose dependent variable has a negative binomial is more appropriate to be used for Dengue patient data analysis. Central region and the season during Feb-Apr were assigned to be reference groups. Risk factors for Dengue fever were rainfall (Relative Risk (RR) = 1.0009) average temperature (RR = 1.1736) forest area (RR = 1.0482) southern region (RR = 2.7390) eastern region (RR = 2.0489) western region (RR = 1.4051) the season during May-Jul (RR = 3.0526) and Aug-Oct (RR = 3.2677)

The aims of this study were: (1) to develop an business news reading activity model using the reflective approach and group investigation and (2) to investigate the results by using the English business news reading activity model in business news reading achievement self-reflection of knowledge attitude and performance of learners and learners’ attitude towards the business news reading activity. The research procedure was comprised of 3 phases. In Phase 1 there was a creation and development of a new activity model which was verified by 3 experts. In Phase 2 the effectiveness of this activity model was developed by conducting the two-action researches. Moreover in the final phase this activity model was implemented with 36 staff members from private and public sectors that enrolled in this action seminar and the model effectiveness was evaluated against t-test. Different sample groups were utilized in each phase of this research : in Phase 2 the first action research was utilized by a sample group comprised of 40 second-year financial accounting undergraduates in the 1st Semester of Academic Year 2009 and the second action research was utilized by the sample group comprised of 36 first-year to third-year mixed-program undergraduates in the 2nd Semester of Academic Year 2009 ; and in the final phase the implementation and assessment of this activity model’s effectiveness was applied in which the sample group consisted of 36 staff members coming from the private and public sectors in Bangkok who enrolled in the English business news activity seminar. The research instruments were as follows : (1) the instruments for the study the creativity activity model were an activity-model’s quality evaluation and a Daily Business Vocabulary’s quality evaluation forms; (2) the instruments for the action researches were the learning achievement tests of the English business news reading the self-reflective learning checklist the learner’s behavior observation form and the attitude questionnaire; (3) the instruments for the activity model implementation and effectiveness assessment were the activity model the learning achievement tests of the English business news reading and the self-reflective learning checklist. The data were analyzed by means of percentage mean standard deviation and the t-test. The effectiveness of the activity model was assessed in terms of comparing the improvements of the mean scores of the students’ achievement in English business news reading comprehension. The findings of the study revealed that : (1) The English reading activity model using the reflective approach and group investigation developed by the researcher comprised 5 components which were as follows: Principles Objectives Content Learning-Teaching Procedures and Evaluation. The learning-teaching procedure synthesized from the study and used to teach reading in the English business news reading comprehension activity model using reflective approach and group investigation called (P) SPC2PAS model comprised 2 main stages and 7 sub-stages. Planning and SPC2PAS Model are as follows : S-Selecting the article/topic P-Planning and dividing labor C-Carrying out the study P-Preparing the public report P-Presenting the public report A-Authentic developmental evaluation and S-Self-reflection; (2) the development and assessment of the English business news reading comprehension activity model using reflective approach and group investigation revealed that: (2.1) The learners’ achievement of the first second and third action researches in the English reading comprehension was significantly increased at the statistical level of 0.05 which were the mean scores in the English reading comprehension of the mid-tests and post-tests which were significantly higher than those of the pre-tests at the statistical level of 0.05; (2.2) The learners’ spiral-learning development of the first second and third action researches using the activity model on self-reflection of knowledge attitude and practice reflected in the distribution of scores by percentage were in a range of good to very good level. In addition (2.3) three-group samples of all phases had a high to highest level-positive attitude towards the activity model using Reflective Approach and Group Investigation.

This research studied the flow of fluid through a rectangular barrier with the Lattice Boltzmann Method. The concept of this method relies on the streaming and collision of particles with respect to the conservation laws of mass and momentum. The objective of this research was studied patterns of fluid flow through the obstruction and Reynolds number to affect the flow pattern. The simulation showed that the flow pattern changes from laminar flow to turbulent flow when Reynolds numbers increased. In accordance with the theory.

Now a day the mostly air condition are use vapor compression refrigeration system in which R-22 refrigerant is used as a working substance. From the results of study it found that the quantity of water vapor or moisture in the air is condensed with in the fan coil unit while through out the evaporator. The fluid after condense is called condensed water. By this process the quantity of condensed water is increases when the air condition is used in the long time. To increase the utility the condensed water is recovered for the heart reduction in the finned-tube condenser. The experiment is consist of two conditions by using the air and condensed water to heart reduction. But in case of condensed watcr the pressure openation is controlled at 280 and 260 Psig respectively. The results of efficicncy ratio (EER) is 39675 Btu/hr 3.01 and 10.3 Btu/hr Watt respectively with the air is used At the pressure operation 280 Psig refrigeration effect (C.O.P) and (EER) is 44212 Btu/hr 3.38 and 11.5 Btu/hr. Watt respectivecly and 49856 Btu/hr 3.99 and 13.6 Btu/hr Watt at pressure operation 260 Psig. Furthermore the capacity of condenser is increases to 11.43% and 25.6% and also the refrigerant efficient is increases to 12.43 % and 32.43% at the pressure operation 280 and 260 Psig. Thus the pararneter of energy efficiency ratio depends on the capacity of condenser working substance temperature (pressure operation) and air surrounding tcmperature.