환경오염에 있어서 공동불법행위론에 대한 고찰

황진호 단국대학교 법학연구소 1989 법학논총 Vol.15 No.1

A case of sarcoidosis confirmed by multiple biopsies despite lymphoma suspected in imaging studies

황진호,이찬주,심효섭 대한내과학회 2021 대한내과학회 추계학술대회 Vol.2021 No.1

Linux 기반의 Diffserv 라우터 구현 및 성능 분석

황진호,김영한,신명기 한국정보과학회 2002 정보과학회논문지 : 정보통신 Vol.32 No.2

In this paper, we implement a diffserv-capable router on the linux system and evaluate its performance. The router supports the packet marking for the input links that is different from the previous implementation. The edge diffserv-capable router can guarantee the performance of each class, even in a congested condition. We compare the performance of the diffserv-capable router with that of the normal router in terms of PDBs (per domain behaviors), which are defined with traffic conditioning rules and PHBs (per hop behaviors). 본 논문에서는 차등화서비스모델(differentiated service model)를 지원하는 라우터를 리눅스상에서 구현하였다. 구현한 라우터는 기존 구현과 달리 입력 단에서부터 패킷마킹이 가능하도록 하였다. 입력 단에서부터 패킷마킹이 가능한 에지 라우터는 네트워크 병목현상이 발생한 경우에도 각 클래스간 독립적으로 서비스를 보장해 줄 수 있다. 구현된 라우터는 기존 라우터와의 성능비교를 하였으며, 망의 입력 라우터의 트래픽 조절 규칙과 망 내의 PHB(per hop behavior) 특성을 규격화하여 정의되는 PDB(per domain behavior) 실험을 통하여 성능을 측정하며 검증하였다.

탄소섬유/에폭시 복합재료의 층간파괴인성에 미치는 균열진전각도의 영향

황진호,황운봉,Hwang, Jin-Ho,Hwang, Woon-Bong 대한기계학회 1999 大韓機械學會論文集A Vol.23 No.6

Interlaminar fracture toughness of carbon/epoxy composite materials has been studied under tensile and flexural loading by the use of width tapered double cantilever beam(WTDCB) and end notched flexure(ENF) specimens. This study has significantly examined the effect of various interfacial ply orientation, ${\alpha}(0^{\circ},\;45^{\circ}\;and\;90^{\circ})$ and crack propagation direction, ${\theta}(0^{\circ},\;15^{\circ},\;30^{\circ}\;and\;45^{\circ})$ in terms of critical strain energy release rate through experiments. Twelve differently layered laminates were investigated. The data reduction for evaluating the fracture energy is based on compliance method and beam theory. Beam theory is used to analyze the effect of crack propagation direction. The geometry and lay-up sequence of specimens are considered various conditions such as skewness parameter, beam volume, and so on. The results show that the fiber bridging occurred due to the non-midplane crack propagation and causes the difference of fracture energy evaluated by both methods. For safer and more reliable composite structures, we obtain the optimal stacking sequence from initial fracture energy in each mode.

국내 온열 암 치료 시스템의 품질관리 프로토콜 확립에 대한 연구

황진호,계철승 한국콘텐츠학회 2020 한국콘텐츠학회논문지 Vol.20 No.1

Quality Assurance (QA) is essential to provide effective hyperthermia, but in the case of a problem with a hyperthermia cancer therapy system in Korea, the manufacturers or venders are repairing and maintaining the system. In Korea, if an error occurs in the hyperthermia system, the manufacturer and sales agent are repairing and maintaining it. There is no QA protocol suitable for the domestic situation. This study is based on the QA guidelines recommended by institutions such as European Society for Hyperthermia Oncology (ESHO), Hellenic Society of Oncologic Hyperthermia (HSOH), and the results of questionnaires to hospitals that have hyperthermia cancer therapy systems in Korea. By developing an optimized QA protocol, we aim to reduce the errors and inaccuracies that can occur in during hyperthermia such as measurement of temperature, instrumentation, and heat transfer. In addition, we will visit a hospital with a hyperthermia cancer therapy system in Korea to perform a QA based on this study, and study to specify tolerances and accurate QA set-up parameters using the measured QA results. 효과적인 온열치료를 제공하기 위해선 품질관리는 필수적이지만, 하지만, 국내의 경우 온열 치료 시스템에 이상이 발생할 경우 제조사 및 판매대행사에서 수리 및 유지 보수를 해주고 있어, 국내 실정에 맞는 QA 프로토콜이 존재하지 않는다. 본 연구에서는 European Society for Hyperthermia Oncology (ESHO), Hellenic Society of Oncologic Hyperthermia (HSOH) 등의 기관에서 권고하는 QA 가이드라인과 국내에서 온열 치료 시스템을 보유하고 있는 기관에 설문지를 배포한 결과를 기반으로 국내에 도입된 온열 치료 시스템에 최적화된 품질관리 프로토콜을 개발함으로써 온열 치료의 온도 계측, 장비구동, 온도 전달 등에서 발생할 수 있는 오차와 부정확성을 감소시키고자 하며, 이로 인해 암 치료율을 증가시키고 부작용과 재발률을 감소시켜 치료 효과를 향상시키고자 한다. 또한, 한국에서 온열 치료 시스템을 보유한 병원에 방문하여 본 연구를 기반으로 품질관리를 수행할 예정이며, 측정된 결과를 이용하여 허용 오차 및 정확한 set-up parameter들을 구체화하는 연구를 진행할 예정이다.

콩팥병 환자의 효과적인 백신접종방법

황진호 대한내과학회 2017 대한내과학회 추계학술대회 Vol.2017 No.2

FORM을 이용한 중기 터빈블레이드의 신뢰성 평가

황진호,김철수,김정규 한국신뢰성학회 2002 한국신뢰성학회 학술대회논문집 Vol.2002 No.6

탄소섬유 / 에폭시 복합재료의 모드 2 층간파괴 인성에 미치는 균열진전각도의 영향 ( Effect of Crack Propagation Directions on the Mode Ⅱ Interlaminar Fracture Toughness of Carbon / Epoxy Composite Materials )

황진호,황운봉,박현철,한경섭 대한기계학회 1998 대한기계학회 춘추학술대회 Vol.- No.-

Myocardial Bridging of the Left Anterior Descending Coronary Artery: Depiction Rate and Morphologic Features by Dual-Source CT Coronary Angiography

황진호,고성민,노홍기,송명근,신제균,지현근,김준석 대한영상의학회 2010 Korean Journal of Radiology Vol.11 No.5

Objective: To evaluate the depiction rate and morphologic features of myocardial bridging (MB) of the left anterior descending coronary artery (LAD) using dual-source CT (DSCT). Materials and Methods: CT scans from a total of 1,353 patients who underwent DSCT were reviewed retrospectively for LAD-MB. Seventy-eight patients were excluded due to poor image quality or poor enhancement of the coronary artery. The length and depth of the MB were analyzed and classified as superficial or deep with respect to the depth (≤ 1 or > 1 mm) of the LAD tunneled segment. Superficial MB was subdivided into complete or incomplete types according to full or partial encasement of the myocardium. Results: Of the 1,275 patients included in this study, 557 cases of MB were found from 536 patients (42%). Superficial MB was observed in 368 of 557 (66%) cases, and deep MB was seen in 189 of 557 (34%) cases. Superficial MB showed 2 types: complete (128 of 368, 35%) and incomplete (240 of 368, 65%). The mean length of a tunneled segment for superficial MB was 16.4 ± 8.6 mm. The mean length and depth of a tunneled segment for deep MB were 27.6 ± 12.8 mm and 3.0 ± 1.4 mm, respectively. The incidence of atherosclerotic plaques in a 2-cm-long segment proximal to MB was 16%. Conclusion: The depiction rate of LAD-MB using DSCT in a large series of patients was 42%, with two-thirds of MB segments being the superficial type. Objective: To evaluate the depiction rate and morphologic features of myocardial bridging (MB) of the left anterior descending coronary artery (LAD) using dual-source CT (DSCT). Materials and Methods: CT scans from a total of 1,353 patients who underwent DSCT were reviewed retrospectively for LAD-MB. Seventy-eight patients were excluded due to poor image quality or poor enhancement of the coronary artery. The length and depth of the MB were analyzed and classified as superficial or deep with respect to the depth (≤ 1 or > 1 mm) of the LAD tunneled segment. Superficial MB was subdivided into complete or incomplete types according to full or partial encasement of the myocardium. Results: Of the 1,275 patients included in this study, 557 cases of MB were found from 536 patients (42%). Superficial MB was observed in 368 of 557 (66%) cases, and deep MB was seen in 189 of 557 (34%) cases. Superficial MB showed 2 types: complete (128 of 368, 35%) and incomplete (240 of 368, 65%). The mean length of a tunneled segment for superficial MB was 16.4 ± 8.6 mm. The mean length and depth of a tunneled segment for deep MB were 27.6 ± 12.8 mm and 3.0 ± 1.4 mm, respectively. The incidence of atherosclerotic plaques in a 2-cm-long segment proximal to MB was 16%. Conclusion: The depiction rate of LAD-MB using DSCT in a large series of patients was 42%, with two-thirds of MB segments being the superficial type.

모바일 DBMS를 위한 압축 데이터 관리 시스템의 기능 고도화

황진호,이정화,김건우,신영재,손진현,Hwang, Jin-Ho,Lee, Jeong-Wha,Kim, Gun-Woo,Shin, Young-Jae,Son, Jin-Hyun 한국정보처리학회 2008 정보처리학회논문지D Vol.15 No.6

최근 정보의 디지털화와 휴대용 정보기기의 보편화로 휴대용 정보기기가 업무처리의 중요한 수단이 되었고 처리해야하는 정보의 양 또한 증가하고 있다. 이러한 휴대용 정보기기에서 무수한 디지털 정보를 효과적으로 처리하기 위해 휴대용 정보기기에 적합한 모바일 DBMS의 사용이 요구된다. 또한 휴대용 정보기기에서 데이터 저장장치로서 보편적으로 사용되는 플래시 메모리는 기존의 하드디스크에 비해 저장 비용이 높아 데이터 저장에 있어 공간적 제약을 받으며, 데이터 I/O에 따른 수명을 가짐으로서 사용성에 제약을 받는다. 이러한 이유로 플래시 메모리를 저장매체로 사용하는 DBMS가 보편적으로 사용할 수 있는 압축 데이터 관리 시스템이 연구되고 있다. 하지만 압축 데이터 관리 시스템의 연구는 초기 단계이며 몇 가지 문제점을 가지고 있다. 따라서 본 논문에서는 압축 데이터 관리 시스템의 문제점을 해결하고, 추가적인 관리방식을 제안하여 새로운 압축 데이터 관리 시스템을 제안한다. Recently, mobile computing devices are used popularly. And quantity of information on mobile computing devices is being increased due to digitalization of information. So it needs an embedded DBMS for effective information management. Furthermore, since flash memory having a restriction on the number of partial write cycles is rapidly deployed on mobile computing devices as data storage and is more expensive than the conventional magnetic hard disk, the compressed data management system(CDMS) has been considered as an effective storage management technique for mobile computing devices in previous research. However, the research of CDMS is at the initial stage and has several problems. Hence, in this paper, we present additional storage management methods to solve the problems and improve the effectiveness of the CDMS for embedded DBMS.