心泊數の變化からみたバドミソトソ授業の運動强度

金世煥 江原大學校附設 體育科學硏究所 1991 江原大學校附設體育科學硏究所論文集 Vol.- No.16

만보계를 이용하여 수업중 이동거리와 촉진법 및 herat telermeter법에 의한 심박수의 측정결과로부터 대학의 일반 체육수업중의 운동의 양과 질에 관하여 검토했다. 보다 운동강도를 높이기 위하여 용구의 능률적 준비, 간단한 설명, 연습회수를 많게 하기위한 지도법의 연구, 비활동적인 학생을 개별 지도 및 동기부여 등에 의하여 수업에 적극적으로 참여시키는 방법등에 관한 연구가 필요하다고 생각된다. 심박수나 최대 산소섭취량 등의 생리적 부하강도와 주관적 운동강도와의 관련성을 정확히 파악하여, 지도하고자 하는 종목의 운동이 어느정도의 운동강도인가를 지도자가 이해하는 것과, 수업중의 발한, 안색, 호흡상태 등의 주관적 운동강도를 파악하여 운동량을 조절하는 것이 필요하다고 생각된다. 학교현장에서 요구되는 것은 수업 전개중에 운동량을 확보하기 위한 지도자의 지도법의 개발이 요구되며, 이를 위하여 심박수의 특성을 유효하게 응용할 필요가 있다고 생각된다.

中國先泰文學觀念硏究 : 중국선태문학관념연구

김세환 부산대학교 1989 中國問題硏究 : 論文選 Vol.16 No.-

Development of Indicators to Assess the Stability of Remnant Blood Samples Stored in a Biobank: Experience at One Institution

김세환,강영은,홍영준,장윤환,홍석일,오애진,이진경 대한진단검사의학회 2010 Annals of Laboratory Medicine Vol.30 No.6

Background : One of the major concerns with biobanking is the absence of standard operating procedures to eliminate pre-analytical variation arising from sample collection, preparation, and storage. Currently, there is a lack of tools to carry out quality control procedures for stored blood samples. The aim of this study is to assess the quality of stored blood samples in our biobank and to suggest appropriate indicators for their quality control. Methods : The stored blood samples that we tested have been registered into our biobank since 2003. These were transferred to our biobank after carrying out routine requested tests, because the samples would have otherwise been discarded. For the purpose of quality control, we analyzed the concentrations and the integrity of DNA and RNA extracted from the stored samples and tested the levels of several serum proteins; the results were compared with the corresponding pre-storage levels. Results : A total of 19 samples were stored from 2006 to 2009. Of the 22 samples stored between 2003 and 2005, 50% showed complete DNA integrity. However, sufficient RNA integrity was noted in only 1 sample stored as recently as 2009. High blood urea nitrogen levels were also noted in the stored sera, but the increase did not correlate to the duration of storage. Conclusions : The amount and integrity of nucleic acids extracted from stored blood samples are potential indicators that can be used for quality control. A guideline for the quality assessment of stored blood samples in a biobank is urgently needed. (Korean J Lab Med 2010;30:718-25)

그림씨 외 1편

김세환 고요아침 2020 시조시학 Vol.74 No.-

지방선거와 지방자치

김세환 대한지방행정공제회 2018 地方行政 Vol.67 No.773

척수 내 종양으로 의심된 경추 척수 내 유육종증 −증례 보고−

김세환,김돈규,강시현,서경묵 대한재활의학회 2010 Annals of Rehabilitation Medicine Vol.34 No.3

Sarcoidosis is an idiopathic multisystem disorder that usually develops in the respiratory system, but rarely in spinal cord. A 54-year-old female patient was presented with progressive right side weakness and paresthesia below C4 level dermatome which began 3 months ago. Cervical MRI findings showed T2 weighted high signal nodular lesion with surrounding edema at the C4 and C5 vertebra level, suggestive of intramedullary spinal cord tumor. She went through the resection of the part of the mass. The result of biopsy revelaed chronic granulomatous inflammation without caseous necrosis. Despite of tuberculosis medication and proper rehabilitation program for 2 weeks, there was no improvement of symptoms with exacerbated findings on cervical MRI and increased serum angiotensin converting enzyme level. We concerned about the cervical intramedullary sarcoidosis at this point, we treated her with steroid. After 3 months, her MRI findings were improved without improvement in her symptoms. (J Korean Acad Rehab Med 2010; 34: 372-375)

[기획노트] 제5회 ‘소설시장페스티벌’ : 팔아야 한다는 절박함

김세환 공연과이론을위한모임 2022 공연과 이론 Vol.- No.85

Beneficial Effects of Silibinin Against Kainic Acidinduced Neurotoxicity in the Hippocampus in vivo

김세환,정운주,오용석,전민태,김형준,신원호,홍정완,김상룡 한국뇌신경과학회 2017 Experimental Neurobiology Vol.26 No.5

Silibinin, an active constituent of silymarin extracted from milk thistle, has been previously reported to confer protection to the adult brain against neurodegeneration. However, its effects against epileptic seizures have not been examined yet. In order to investigate the effects of silibinin against epileptic seizures, we used a relevant mouse model in which seizures are manifested as status epilepticus, induced by kainic acid (KA) treatment. Silibinin was injected intraperitoneally, starting 1 day before an intrahippocampal KA injection and continued daily until analysis of each experiment. Our results indicated that silibinin-treatment could reduce seizure susceptibility and frequency of spontaneous recurrent seizures (SRS) induced by KA administration, and attenuate granule cell dispersion (GCD), a morphological alteration characteristic of the dentate gyrus (DG) in temporal lobe epilepsy (TLE). Moreover, its treatment significantly reduced the aberrant levels of apoptotic, autophagic and pro-inflammatory molecules induced by KA administration, resulting in neuroprotection in the hippocampus. Thus, these results suggest that silibinin may be a beneficial natural compound for preventing epileptic events.

중국신화의 변천과 문학

김세환 대한중국학회 1984 중국학 Vol.1 No.-

파노라믹 3D 가상 환경 생성을 위한 다수의 카메라 캘리브레이션

김세환,우운택,김기영 대한전자공학회 2004 電子工學會論文誌-CI (Computer and Information) Vol.41 No.02

In this paper, we propose a new camera calibration method for rotating multi-view cameras to generate image-based panoramic 3D Virtual Environment. Since calibration accuracy worsens with an increase in distance between camera and calibration pattern, conventional camera calibration algorithms are not proper for panoramic 3D VE generation. To remedy the problem, a geometric relationship among all lenses of a multi-view camera is used for intra-camera calibration. Another geometric relationship among multiple cameras is used for inter-camera calibration. First, camera parameters for all lenses of each multi-view camera are obtained by applying Tsai’s algorithm. In intra-camera calibration, the extrinsic parameters are compensated by iteratively reducing discrepancy between estimated and actual distances. Estimated distances are calculated using extrinsic parameters for every lens. Inter-camera calibration arranges multiple cameras in a geometric relationship. It exploits Iterative Closet Point (ICP) algorithm using back-projected 3D point clouds. Finally, by repeatedly applying intra/inter-camera calibration to all lenses of rotating multi-view cameras, we can obtain improved extrinsic parameters at every rotated position for a middle-range distance. Consequently, the proposed method can be applied to stitching of 3D point cloud for panoramic 3D VE generation. Moreover, it may be adopted in various 3D AR applications. 본 논문에서는 영상기반 파노라믹 3D 가상 환경 (Virtual Environment: VE) 생성을 위해 회전하는 다수의 멀티뷰 카메라를 위한 캘리브레이션 방법을 제안한다. 일반적으로, 카메라 캘리브레이션 알고리즘은 카메라와 캘리브레이션 패턴 사이의 이 멀어질수록 획득되는 카메라 파라미터의 정확도가 상당히 저하되어 파노라마 영상 제작에는 부적합하다. 이러한 문제점을 극복하기 위해 멀티뷰 카메라의 렌즈간 그리고 회전하는 다수의 멀티뷰 카메라간의 기하학적인 상관 위치 관계를 이용하여 정확도를 높인다. 우선, Tsai의 캘리브레이션 알고리즘을 적용하여 획득된 카메라 파라미터를 카메라 렌즈간의 사전 기하 정보와 비교하여 그 오차에 기반한 인트라 카메라 캘리브레이션 (Intra-camera Calibration)을 수행한다. 그리고 가상 공간에 역투영된 3D point cloud에 ICP 알고리즘을 적용하여 인터 카메라 캘리브레이션 (Inter-camera Calibration)을 수행한다. 이를 확장하여, 다수의 카메라를 회전시켜 획득된 3D point cloud에 대해 기준 카메라의 위치를 중심으로 인터 카메라 캘리브레이션을 연속적으로 수행함으로써 회전하는 다수의 멀티뷰 카메라에 대한 캘리브레이션을 수행한다. 이와 같은 캘리브레이션 방법을 통해 중에서도 비교적 개선된 카메라 파라미터를 획득할 수 있기 때문에 파노라믹 3D 가상 환경을 생성하기 위한 정합 과정에 사용할 수 있다. 또한, 실시간 3D 객체 추적 및 AR 응용 시스템 등의 다양한 AR 응용분야에 활용될 수 있다.