김지훈 교수

This preliminary study shows that the combination therapy of HIFU and TACE is more effective than TACE monotherapy for treating HCCs <5 cm.

Proton therapy has dosimetric advantages due to the well-defined range of the proton beam over photon radiotherapy. When the proton beams, however, are delivered to the patient in fractionated radiation treatment, the treatment outcome is affected by delivery uncertainties such as anatomic change in the patient and daily patient setup error. This study aims at establishing a method to evaluate the dosimetric impact of the anatomic change and patient setup error during head and neck proton therap

Critical cooling rate (Rc) for glass formation has been calculated from an integrated transformation curve, constructed by combining continuous cooling transformation (CCT) and continuous heating transformation (CHT) curves. The CCT and CHT curves were calculated from experimental measurements on cooling rate dependence of solidification onset temperature using classical nucleation kinetics and heating rate dependence of crystallization onset temperature using Kissinger method, respectively. The

본 연구의 목적은 야외 운동기구를 이용하는 노인들의 신체적 자기개념과 이용만족, 지속적 이용의도의 관계를 종합적으로 규명하는데 있다. 연구대상은 서울시 및 경기도 일대의 근린공원 및 놀이터에 설치되어 있는야외 운동기구를 이용하는 65세 이상 노인을 모집단으로 선정하였고, 조사대상의 표집은 확률표집방법 중 집락표집(cluster sampling)을 사용하였다. 설문지는 자기평가 기입법으로 설문내용에 대하여 응답하도록 하고직접 응답이 불가능한 노인에게는 직접 면접을 실시하여 설문조사를 실시하였으며, 설문자료를 Window용SPSS 15.0 Version 통계프로그램과 AMOS 7.0을 이용하여 본 연구의 목적에 맞게 분석하였다. 이 같은 연구 목적을 바탕으로 다음과 같은 결론을 얻었다. 첫째, 신체적 자기개념 중 신체적 유능감과 건강이 이용만족에 유의한 영향을 미치는 요인으로 나타났다. 둘째, 신체적 자기개념 중 신체적 유능감과 건강이 지속적 이용에 유의한 영향을 미치는 요인으로 나타났

Glucose/O(2) biofuel cells (BFCs) with an improved power density and stability were developed, using glucose oxidase (GOD) nanotubes with polypyrrole (PPy)-carbon nanotubes (CNTs)-GOD layers deposited on their surface as an anode and a PPy-laccase-2,2'-azinobis (3-ethylbenzothiazoline-6-sulfonate) diammonium salt (ABTS) film type cathode. The GOD nanotubes were fabricated within the nanopores of an anodized aluminum oxide membrane using a template-assisted layer-by-layer deposition method. These

Abstract This paper constructs a model of an Emission Trading Scheme (ETS) market using bid‐ask spreads. We show that when such a market is dominated by a small number of traders with substantial market power, they tend to maximize their profits by widening bid‐ask spreads, thereby reducing market liquidity. We argue that adding more market participants, including derivatives traders, can alleviate this illiquidity problem. Policy changes at the European Union's ETS illustrate our theory, as the

AimsObjective evaluation of radiation dermatitis is important for analysing the correlation between the severity of radiation dermatitis and dose distribution in clinical practice and for reliable reporting in clinical trials. We developed a novel radiation dermatitis segmentation system based on convolutional neural networks (CNNs) to consistently evaluate radiation dermatitis.Materials and methodsThe radiation dermatitis segmentation system is designed to segment the radiation dermatitis occur

PURPOSE: This study aims at developing and testing a novel rigidity penalty suitable for the deformable registration of tightly located skeletal components in the head and neck from planning computed tomography (CT) and daily cone-beam CT (CBCT) scans of patients undergoing radiotherapy. METHODS: The proposed rigidity penalty is designed to preserve intervoxel distances within each bony structure. This penalty was tested in the intensity-based B-spline deformable registration of five cervical ve