The purposes of this research were to: 1) study the factors effecting parents’ decision in enrolling their children in private kindergartens in Yannawa District 2) compare the decision factors for parents to enroll their children in private kindergartens in Yannawa District classified by sex age education income and number of children enrolling in schools. The sample consisted of 335 parents by simple random sampling method. The research instrument was a five-scale rating questionnaire with .95 reliability. The data were statistically analyzed by percentage mean and standard deviation. The mean differences were tested by t-test and Analysis of Variance in case of significant difference Scheffé method was used to test pair-difference. The research revealed that: 1) the factors effecting parents’ decision in enrolling their children in private kindergartens in Yannawa District were teacher role academic management experience and learning activity management school fame and tuition fee; 2) the comparison of parents deciding factors to enroll their children in private kindergartens in Yannawa District classified by sex age education income and number of children enrolling in schools as a whole and by aspects were not different of .05 level of significance.

This study evaluates the fatigue life of a closed-loop oscillating heat-pipe with check valves (CLOHP/CV). The method was predicting the fatigue life of the copper tube to apply for the CLOHP/CV. The fatigue test was carried out by using the specimens made of copper tube (C1220) at the temperature of 293 (room temperature) 473 and 573 K. The three types of hourglass shaped specimen included uniform type one-wave type and two-wave type specimens. It was found that the effect was a direct extension of material structures of specimen and hourglass shaped. It can be said that the number of cycles to failure (Nf) of the two-wave type specimen hourglass shaped specimen was rather sensitive to fatigue motion during testing and the temperature of 573 K has the greatest failure impact.