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퍼지전문가 시스템을 이용한 미세 혈액형 진단시스템 개발
강태연(Taeyun Kang),이승재(Seung-Jae Lee),김용구(Yonggoo Kim),이규형(Gyoo-Whung Lee),조동우(Dong-Woo Cho) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
ABO typing is the first test done on blood when it is tested for transfusion. The automated machines in hospitals are typically supersized and the process is complicated. In this paper, we present intelligent micro-blood typing system including two parts: single-line micro blood typing device and fuzzy expert system for grading strength of agglutination. Blood and antibody serum are mixed in the micro mixer and agglutination occurs in the chamber. Then fuzzy expert system determines the degree of agglutination from images of agglutinated blood. The single-line micro blood typing device was fabricated by microstereolithography. The blood typing experiments were successfully done on this device and the fuzzy expert system shows grading decision reflecting the expert's expectations
마이크로 광 조형 기술을 이용한 연골조직 재생용 3차원 인공지지체 개발
이승재(Seung-Jae Lee),강태연(Taeyun Kang),박정규(Jung Kyu Park),이종원(Jong-Won Rhie),한세광(Sei Kwang Hahn),조동우(Dong-Woo Cho) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
Conventional methods for fabricating three-dimensional (3-D) scaffolds have substantial limitations. In this paper, we present 3-D scaffolds that can be made repeatedly with the same dimensions using a microstereolithography system. This system allows the fabrication of a pre-designed internal structure, such as pore size and porosity, by stacking photopolymerized materials. The scaffolds must be manufactured in a material that is biocompatible and biodegradable. In this regard, we synthesized liquid photocurable biodegradable TMC/TMP, followed by acrylation at terminal ends. And also, solidification properties of TMC/TMP polymer are to be obtained through experiments. Cell adhesion to scaffolds significantly affects tissue regeneration. As a typical example, we seeded chondrocytes on two types of 3-D scaffold and compared the adhesion results. Based on these results, the scaffold geometry is one of the most important factors in chondrocyte adhesion. These 3-D scaffolds could be key factors for studying cell behavior in complex environments and eventually lead to the optimum design of scaffolds for the regeneration of various tissues, such as cartilage and bone.