이성민 교수

This paper presents a new approach to automatic three-dimensional (3D) cephalometric annotation for diagnosis, surgical planning, and treatment evaluation. There has long been considerable demand for automated cephalometric landmarking, since manual landmarking requires considerable time and experience as well as objectivity and scrupulous error avoidance. Due to the inherent limitation of two-dimensional (2D) cephalometry and the 3D nature of surgical simulation, there is a trend away from curr

Catechin inhibited cataract-induced apoptotic cell death in the lens epithelium and may prove useful for the prevention of cataract progression.

Network coding, a well-known technique for optimizing data-flow in wired and wireless network systems, has attracted considerable attention in various fields. However, the decoding complexity in network coding becomes a major performance bottleneck in the practical network systems; thus, several researches have been conducted for improving the decoding performance in network coding. Nevertheless, previously proposed parallel network coding algorithms have shown limited scalability and performanc

This paper proposes a direct sinogram correction method that does not require metal segmentation and prior knowledge to reduce metal-related artifacts in polychromatic computerized tomography (CT). The metal-related artifacts, being common in dental conebeam CT images, are caused by beam hardening-induced sinogram inconsistency associated with complicated metal-bone-tissue interactions and other factors including scattering. This paper carefully analyzed artifact-causing factors and developed a

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PURPOSE: This study aims to propose a physics-based method of reducing beam-hardening artifacts induced by high-attenuation materials such as metal stents or other metallic implants. METHODS: The proposed approach consists of deriving a sinogram inconsistency formula representing the energy dependence of the attenuation coefficient of high-attenuation materials. This inconsistency formula more accurately represents the inconsistencies of the sinogram than that of a previously reported formula (c

Purpose: Acute appendicitis is the most common cause of an acute abdomen that needs an emergency operation. However, the preoperative diagnosis is difficult. The purpose of this study is to assess the diagnostic efficacy of the Alvarado score by a comparison with CT and to determine the indication of CT evaluation. Methods: From August 2006 to October 2006, 111 consecutive patients were admitted to Chung-Ang University hospital under the impression of acute appendicitis, and a CT scan was done.

본 연구의 목적은 리빙랩 방식을 활용하여 경계선 발달장애인의 의사소통 능력 향상을 위해 현실성(Reality)이 반영된 ICT 기반의 애플리케이션 콘텐츠를 개발하는 데 있다. 리빙랩 방식은 사용자(User)를 중심으로 이해관계자들이 관련 문제에 대해 해결방안을 제시하는 것으로 본 연구에서는 경계선 발달장애인을 대상으로 원활한 대인관계에 대한 욕구를 확인했으며, 이를 실현하기 위해 의사소통 전문가 및 앱 기술자가 연구에 참여하여 사용자의 맥락에 맞게 애플리케이션에 적용할 수 있는 콘텐츠를 개발하였다. 이러한 시도를 통해 경계선 발달장애인의 욕구를 확인하였을 뿐만 아니라 사용자의 환경에 적합한 지원 도구를 개발했으며 나아가 장애인 복지 분야에 리빙랩 방식을 활용한 새로운 방법을 제시했다.

Abstract While unitized regenerative fuel cells (URFCs) are promising for renewable energy storage, their efficient operation requires simultaneous water management and gas transport, which is challenging from the standpoint of water management. Herein, a novel approach is introduced for examining the alignment hydrophilic pattern of a Ti porous transport layer (PTL) with the flow field of a bipolar plate (BP). UV/ozone patterning and is employed to impart amphiphilic characteristics to the hydr

Background: Polymeric micelles attract great attention in drug delivery and therapeutics. Various types of block copolymers have been designed for the application in biomedical fields. If we can introduce additional functional groups to the block copolymers, we can achieve advanced applications. In this regards, we tried to introduce aggregation induced emission enhancement (AIE) unit in the block copolymer. Methods: The formation of polyion complex micelle was confirmed by dynamic light scatter

공관복음은 예수님께서 땅에서 태어나셔서 수난을 당하신 후에 하늘에 오르셔서 유대인들과 이방인들의 왕이 되셨다는 구도를 가지고 있다. 예수님은 땅을 다스리는 그리스도이시다. 마태는 아브라함과 다윗의 자손으로 오신 예수님이 유대인의 왕이심을 증거한다. 마가는 로마의 황제를 누르시고 로마제국을 통치하시는 예수 그리스도를 증거한다. 비록 땅에 계실 때에는 유대인의 배척을 받고, 유대 지도자들에게 수난을 당하시고, 로마 정부에 의해 죽임을 당하셨지만, 부활하신 이후에 하늘에 오르셔서 만왕의 왕이 되셨다. 베드로는 사도행전의 설교에서 예수님께서 시편 110:1의 예언대로 땅에 계시다가 하늘로 높이 올림을 받으셨다고 증거하고 있다(행 2:33). 공관복음과 사도행전은 하나님께서 예수 그리스도를 ‘높이셨다’ 점에 초점이 맞추어져있다.BR 반면에 요한복음은 이 땅에 계셨던 예수님을 증거하려고 기록이 아니라, 영원부터 하늘에 계셨던 예수님에 관한 증거이다. 요한은 땅에 계시다가 하늘로 올리신 예수님을