혈액투석이 안압, 망막신경섬유층 두께 및 각막두께에 미치는 영향

강용석,황영훈,김재석,이주화,Yong Seok Kang,Young Hoon Hwang,Jae Suk Kim,Joo Hwa Lee 대한안과학회 2012 대한안과학회지 Vol.53 No.11

Purpose: To compare the intraocular pressure (IOP), retinal nerve fiber layer (RNFL) thickness and central corneal thickness (CCT) in healthy individuals and patients with chronic renal failure (CRF) undergoing hemodialysis, and to evaluate the changes in each parameter before and after hemodialysis in patients with CRF. Methods: Thirty-six eyes of 36 patients with CRF undergoing hemodialysis were included in the hemodialysis group and 54 eyes of 54 healthy subjects were recruited as the control group. All subjects underwent a complete eye examination, including best-corrected visual acuity (BCVA), slit lamp examination, dilated funduscopic examination, gonioscopy, automated perimetry, IOP measurement, corneal pachymetry, and evaluation of RNFL thickness. In the hemodialysis group, IOP, RNFL thickness, and CCT were measured again within 1 hour of hemodialysis. Results: Age, sex, BCVA, cup-to-disc ratio, IOP, and CCT were not statistically different between the 2 groups. The RNFL of the hemodialysis group was statistically significantly thinner than the control group (p < 0.001). The IOP decreased from 16.52 ± 2.95 mm Hg to 14.88 ± 2.03 mm Hg after hemodialysis (1.63 ± 3.27 mm Hg; p = 0.005). The changes in RNFL thickness and CCT were not statistically significant (p = 0.148, p = 0.352). Conclusions: In CRF patients with hemodialysis, RNFLs were thinner in the control group and hemodialysis induced significant IOP reduction. The results from the present study should be considered for the proper evaluation of ocular disorders in CRF patients with hemodialysis.

Recognition investigation on Wellness Tourism activities

Yong-Suk Kang(강용석),Hyo Kim(김효),Yong-Bok Choi(최용복),Mincheol Kim(김민철),Mun-Sub Chung(정문섭) 제주대학교 관광과경영경제연구소 2018 産經論集 Vol.38 No.4

Purpose - The purpose of this research is to examine the recognition on wellness tourism activities in Jeju based on spatial classifications such as natural healing space, non-medical healing space and semi-medical healing space by the degree of medical interference. Based on the results of these surveys, this study presents wellness activities to promote wellness tourism in the Jeju Special Self - Governing Province. Research, design, data and methodology - The degree of the recognition on wellness tourism activities has been investigated with a structured survey. And then, the degrees of importance and satisfaction on activities have been respectively analysed. For this purpose, the survey was conducted for domestic tourists visiting Jeju Island using structured questionnaires for domestic tourists visiting Jeju Island. In the questionnaire survey, a one - on - one interview was conducted with a tour guide who had a professional interviewer who was aware of the contents of the questionnaire through the pre - training on the meaning of the questionnaire. A total of 255 questionnaires were collected and analyzed as basic data. Basically, this study reclassified the wellness activities suggested by Kim (2018) and conducted a survey in connection with them. Results - Wellness tourism activities in Jeju are highly demanded. The results showed that the highest level of importance for each wellness activity was forest, traditional main dish, hiking. Wellness activities were followed by respiration, and postpartum care. The satisfaction level of wellness activities was highest in the order of forest, and hiking. The most satisfactory wellness activities Respiration, postpartum care center, and hydrotherapy. The degrees of importance and satisfaction on wellness tourism activities have been also estimated 82% and 72% high respectively. In particular, among the wellness tourism activities, hiking activities, forest activities, and food service in natural healing space have been measured significantly. Conclusions - The efforts of resource development and systematic promotion on wellness tourism activities are urgently needed for stimulus measures because of the high demand . Thus, it is time to establish an institutional basis and establish a dedicated administrative organization. In addition, resource development reflect regional characteristics are strongly needed.

84년 소년체전 참가 경남 대표선수들의 장내기생충 보유 현황 연구

강용석 ( Yong Suk Kang ),이충훈 ( Choong Hoon Lee ) 경남대학교 환경문제연구소 1984 환경연구 Vol.6 No.-

오픈소스 기반 Deep Learning 기술을 활용한 보안관제시스템의 Anomaly Detect Model 연구

강용석(Yong Suk Kang),신용태 한국정보과학회 2017 정보과학회지 Vol.35 No.9

복합문화시설 매개공간의 유형별 특성연구

강용석(Kang, Yong-suk),이영수(Lee, Young-Soo) 대한건축학회 2016 대한건축학회 학술발표대회 논문집 Vol.36 No.2

Parameter space in contemporary architecture is simply not the only space that connects the two different programs, it is necessary itself became empty roles within the building, the possibility of a new incident occurs because of its role It must be a certain location. "Complex Culture Center", by being planned as a multipurpose space focused on simple complexation of functions, the functions of each program will not be able to properly utilize any of the parameter space of solutions attention It came to be. The classification scheme, after the "externally connected parameter space" and the "parameter space inside" were divided into main types of intermediary space, "Direct methods of mediating within which users are directly connected Parameters "and to make the analytical framework as" indirect mediated "that are connected through the parameters, complex cultural center of modern complex cultural center of the mediated space a representative example from the 1990s, which began in earnest appeared up to now in the present study to analyze the type-specific characteristics, and it is an object.

IT서비스 환경에 대한 보안위험기반 Airport 모델 적용에 관한 연구

강용석(Kang,Yong Suk),최국현(Choi,Kook Hyun),신용태(Shin,Yong Tae),김종배(Kim,Jong Bae) 한국IT서비스학회 2014 한국IT서비스학회 학술대회 논문집 Vol.2014 No.춘계

정보기술환경이 모바일, 클라우드, BYOD 기반으로 변화함에 따라 새로운 취약점을 활용한 APT 공격 등의 보안위협이 증가하고 있다. 이에 대응하기 위해서는 보안 모델 또한 대응, 치료 중심에서 예방 중심으로 변화하여야 한다. 본 연구에서는 이러한 새로운 공격으로부터 IT서비스의 신뢰성을 확보하기 위해 계정, 권한, 인증, 감사, 관리의 5A측면에서 보안위협요소에 대응할 수 있는 프로세스를 강화한 보안위험기반의 에어포트 모델을 제시한다.

MR유체를 적용하는 마운트의 설계변수에 관한 연구

강용석(Yong-Suk Kang) 산업기술교육훈련학회 2007 산업기술연구논문지 (JITR) Vol.12 No.3

This research proposed the mixture mode type Mount using MR fluids and derived the equation of motion for the Mount system. Non dimensional function of the proposed MR dash pot, which made up of the design parameter related with the geometry and the Bingham character of MR fluids, is derived. The damping force model which consist of the function of electricity in oder to control damping force of MR Mount is deduced. Moreover, a appropriate size of the MR mount is designed and manufactured on the basis of Bingham model of MR fluid. In addition, the field-dependent damping forces of MR mount are evaluated with respect to the input frequency variation.

증기발생기 관판내부 균열 열화 특성

조남철,강용석,김형남,이국희,Cho, Nam Cheoul,Kang, Yong Suk,Kim, Heung Nam,Lee, Kuk-Hee 한국압력기기공학회 2014 한국압력기기공학회 논문집 Vol.10 No.1

There has been extensive experience associated with the operation of SGs wherein it was believed, based on NDE, that throughwall tube indications were present within the tubesheet. The installation of the SG tubes usually involves the development of a short interference fit, referred to as the tack expansion, at the bottom of the tubesheet. The tack expansion was usually effected by a hard rolling process and thereafter, in most instance, by the expansion of a urethane plug inserted into the tube end and compressed in the axial direction. The rolling process by its very nature is considered to be intensive with regard to metalworking at the inside surface of the tube and would be expected to lead to higher residual surface stresses. Alternate repair criteria(ARC) in the tack expansion area have been developed and applied to nuclear power plants in USA, however domestic nuclear power plants have not applied ARC for tubes in tubeheet area yet. In consideration of the degradation characteristics of tubes in the Steam Generator tubesheet, this paper suggests ARC application for tubes in the steam generator tubesheet of the domestic nuclear power plants in order to assure life time of the steam generator as well as nuclear power plants.

초음파생체현미경으로 진단한 섬유소동공차단 1예

이원혁,강용석,황영훈,성미선,신준우,이주화,Won Hyuk Lee,Yong Suk Kang,Young Hoon Hwang,Mi Sun Sung,Jun Woo Shin,Joo Hwa Lee 대한안과학회 2011 대한안과학회지 Vol.52 No.1

Purpose: To report a case of fibrin pupillary block diagnosed by ultrasonic biomicroscopy (UBM) and treated by argon– neodymium:YAG (Nd:YAG) laser in a patient with uveitis. Case summary: A 56-year-old man visited the hospital for decreasing visual acuity and a sudden onset of pain in the right eye. Best corrected visual acuity was 0.02 in the right eye and 1.0 in the left eye. Intraocular pressure (IOP) was 48 mm Hg in the right eye and 18 mm Hg in the left eye. Slit-lamp examination revealed diffuse corneal stromal edema with Descemet's folds and uniform shallowing of the anterior chamber, with 360 degrees of peripheral iridocorneal touch in the right eye. A fibrin membrane was present across the pupil. UBM showed a fibrin membrane across the pupil, uniform shallowing of the anterior chamber, and peripheral angle closure. The lens was displaced posteriorly. A sequential Nd:YAG laser membranectomy was performed that same day, with immediate deepening of the anterior chamber and normalization of the IOP. Conclusions: UBM can play an invaluable role in the diagnosis of fibrin pupillary block by showing the presence of a fibrin pupillary membrane, accumulation of aqueous in the posterior chamber, and a clear separation between the iris and the lens. Nd:YAG laser membranectomy can be performed effectively in a fibrin pupillary block. J Korean Ophthalmol Soc 2011;52(1):117-121

소명을 이용한 내부정보유출 방지 관리 방안에 대한 연구

박장수 ( Jang-su Park ),강용석 ( Yong-suk Kang ),이임영 ( Im-yeong Lee ) 한국정보처리학회 2014 한국정보처리학회 학술대회논문집 Vol.21 No.1

최근 정보유출 피해사례가 빈번히 발생하고 있으며, 발생 건수 중 대부분이 내부자에 의한 고의 또는 실수로 발생하는 경우가 대부분이다. 이를 방지하기 위해 기관 및 기업에서는 다양한 보안 솔루션을 도입하여 구축해서 운영하고 있다. 그러나 독립적으로 보안솔루션이 운영 및 관리되기 때문에 상관 분석의 어려움으로 통합적인 내부정보유출 모니터링이 불가능하다. 또한 제한된 리소스로 과도하게 발생하는 보안 이벤트를 모니터링하여 내부정보유출을 탐지하고 관리하기에는 어려움이 있다. 따라서 본 논문에서는 사용자 본인이 보안 정책에 위반되는 행위를 했을 시 “어떠한 목적으로 보안위반 행위를 하였는지” 파악하기 위해 소명절차를 이용한 내부정보유출 방지 관리 방안에 대해 연구하고자 한다.