The purpose of this study was to investigate several aspects of eating out behaviors among older persons. In aging society, need of seniors are getting higher than before, they want to have a good quality of life. Specially it is changed in family structure and life style. The food habits of older person will be getting change. Hence this study tried to show the various thought of eating out behaviors, interested factors to select restaurants and menus, tendency to do eating out, inconveniences to use of eating out so on. The questionnaires were completed by 150 older persons living over 60 years old in Busan. They were mostly health and active. The most study were focused young generation however the old generation was not interest in eating out behaviors. Therefor this study gave a lot of approach to develop food habits for old person. The result were as followed: The attitude of eating out were positive, once or two times in a week was highest response 138(92%). As frequently selected food were vegetable and Korean food restaurants. Moreover older person expect a meaningful food culture among older person. As a bad grade of eating out were not to be kind to seniors, never concern to characteristic older. They wanted to have a food for their health and to share with their spare time. The study of eating out style will be very important issue of silver industry. To develop menus and to make older person culture is very needed in aging society.
Most of cosmetics are emulsion products that contain the source of nutrition vegetable oil, mineral oil, natural extract and carbohydrate etc. There are many possibilities to be contaminated by microbials. We investigated the effect of antimicrobial and minimum inhibitory concentration(MIC) with thiamine dilauryl sulfate(TDS), which was prepared to use cosmetic lotion formulation. Staphylococcus aureus(S. aureus) and Escherichia col(E. coli) were used as test organism. MIC value of TDS was determined aganist microorganism for the growth inhibition by concentration of TDS. From the MIC results, antimicrobial effect of TDS was generally more effective to gram positive than gram negative. Antimicrobial effect with pH value against some microorganism appeared in the following order : pH 5 > pH 6 > pH 7. It showed strong antimicrobial activities against S. aureus, and weak antimicrobial activities against E. coli. If it was possible to determine the formulations with TDS, it would be effective to reduce the artificial preservatives.
유체자유수면의 동적거동을 합리적으로 예측하기 위해서는 비선형 특성을 보이는 자유수면의 동역학적 경계조건을 고려해야할 뿐만 아니라 시간에 따라 변화하는 자유수면의 위치변화에 따른 운동학적 경계조건을 고려하여야 한다. 이러한 문제는 대상구조물이 3차원이 될 경우 더욱 복잡해지므로 3차원 비선형 유체자유수면의 해석은 이론해의 도출이 어려우며 수치해석 방법을 이용하는 것이 효과적이다. 본 연구에서는 수치해석 안정성이 높고 3차원 문제에서도 하나의 변수로 유체거동을 모사할 수 있는 arbitrary Lagrangian-Eulerian approach 를 경계요소에 적용하여 효율적이며 안정적인 유체 대변형 해석기법을 개발하였다. 개발된 기법은 향후 자유수면의 비선형 효과를 고려한 유체-구조물 상호작용 해석에 효과적으로 적용할 수 있을 것으로 판단된다.