sesses the finishing capabilities for application to high-precision machining. Because Ti-6AL-4V (Eli) is widely used in applications where it is exposed to the human body, the industrial grinding oil that is commonly used in the magnetic abrasive finishing process was replaced by vegetable oils; the processing performances of these different grinding oils were compared and verified. The characteristics of magnetic abrasive finishing were also investigated according to the temperature of the material. The experimental results show that olive oil yields a surface roughness improvement of 87%. Also, in terms of the roundness and the amount of material removal, the performance was excellent. This demonstrates the possibility of replacing the conventional industrial oil for grinding. Furthermore, when olive oil was used at different temperatures, the finishing characteristics at room temperature were the most excellent. SEM and EDX analyses of the machined components (before and after processing) showed that the material composition was not changed. Additionally, the magnetic abrasive tool composition was not found on the surface of the finished samples. In conclusion, the possibility of using vegetable oil as the grinding oil for high-precision machining of Ti-6Al-4V (Eli) bars via a magnetic abrasive finishing process at room temperature conditions was verified.
공정제어시스템과 같은 복잡한 시스템을 감시하고 제어하기 위한 정보 디스플레이를 설계하기 위해 두 가지의 세부적인 설계문제를 효과적으로 다루어야 한다. 정보디스플레이에서 표현할 정보의 내용을 파악하고 조직화하는 문제와 그 표현할 정보를 시각적으로 잘 표현하는 문제로 구분이 된다. Ecological Interface Design (EID)는 두 문제를 다루기 위한 이론적 배경지식과 방법을 제공하는 정보디스플레이 설계의 틀이다. EID는 1990년대 초반에
The purpose of this study was to offer the opportunity of contact with ecological education to elementary school student. We would like to propose the educational space considering of the effects of ecological education. We found that it is very effective to organize ecological education of elementary program in the interior landscape. We considered the criteria of interior landscape at elementary school as the analysis of curriculum and physiological environment. Observation type, exhibition type and experience type were considered as a type of interior landscape in ecological curriculum. Because we don't have enough information to trace the educational facilities design criteria, this research supplies interior landscape design information for user by web environment. Specially, curriculum analysis is very useful data for interior landscape design criteria. There are three category in this database: obervation, exhibition, experience style. The other category is consist of floor type and elevation type. The last category is garden style, container style, hanging style, and movible or fixed application. User favorite style can be chosen in web environment. This study will be a basic data in the field of interior landscape design.
본 연구는 유치원 교사가 자기 장학을 통해 지식과 기술, 자기 이해, 그리고 생태적 측면에서 어떻게 발달해 가는지를 질적으로 분석하여 유치원 교사가 자기 장학을 실시하는 과정에서 나타나는 효과와 한계는 무엇이며, 세 측면간의 연관성은 어떠한지를 알아보고자 한 것이다. 그 결과, 교사 발달은 지식과 기술, 자기 이해, 그리고 생태적 측면에서 상호 밀접한 관련이 있기 때문에 포괄적으로 이해되어야 하며, 교사 발달을 지원하기 위해서는 교사 발달 수준에 적합한 장학의 유형 및 방법의 적용과 구체적인 외부 지원이 필요한 것으로 나타났다.