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김근영(Kim Keun-Young) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.3
The purpose of this study is to identify the relations between the ability and the level to perceive leisure in Golf Interest Group Members for Golf Practice Range. Objects for this study were adults who live in young-dong area as of 2008 and participate in Golf Interest Group Members for Golf Practice Range. 236 people were sampled through stratified cluster random sampling after sampling framework was set up. With regard to the survey tool, LDB(Leisure Diagnostic Battery), which was originally produced by Witt and Ellis(1990) and used by Noh Su-yeon (2002), was modified and supplemented to use for this study. The following is the result. The ability and the level to perceive leisure are related.
Convolution Filtering을 이용한 캡차 분석
김근영(Keun-young Kim),신동오(Dong-oh Shin),이경희(Kyung-hee Lee),양대헌(Dae-hun Nyang) 한국정보보호학회 2014 정보보호학회논문지 Vol.24 No.6
캡차는 사람은 쉽게 판단할 수 있으나 기계는 판단할 수 없는 문제를 이용하여 사람과 기계를 구별하는 기술이다. 널리 사용되고 있는 문자열 기반 캡차는 구현이 간단하나 이미지 기반이나 소리 기반 캡차에 비해 상대적으로 보안성이 약하다. 텍스트 기반 캡차의 보안성을 높이기 위해 다양한 기법이 개발되었으며, 그 중 하나는 복잡한 배경이나 노이즈를 사용하여 기계가 문자를 인식하기 어렵게 만드는 것이다. 이 논문에서는 이미지 프로세싱 기법 중 하나인 콘볼루션 필터링(Convolution Filter)을 이용하여 효과적으로 캡차를 공격하는 방법을 제시하고, 이를 네이버 카페의 캡차에 적용하여 분석해보았다. CAPTCHA is a technique which distinguishes human and machine using what human can judge easily but machine can’t. Though Text-based-CAPTCHA has been widely used and can be implemented easily, it is less security than other CAPTCHAs such as image-based, or audio-based CAPTCHAs. To enhance the security of text-based CAPTCHA, many techniques have been developed. One of them is making CAPTCHA recognized hard using complex background or noise. In this paper, we introduce how to apply convolution filtering effectively to attack CAPTCHA and actually analyze Naver’s CAPTCHA which has been used for joining a cafe with this method.
대학의 직영기숙사와 BTL 기숙사의 사용자 만족도 비교 분석
김근영 ( Keun-young Kim ),장명훈 ( Myunghoun Jang ) 조선대학교 공학기술연구원 2022 공학기술논문지 Vol.15 No.1
The recent dormitory construction has been carried out in a build-transfer-release (BTL) method in which a special purpose company (SPC) builds dormitories and rents them for a certain period for financial reasons of universities. J University has several dormitories managed and operated by itself and entrusted to the SPC. This study aims to provide basic data that can be used for future dormitory remodeling or new building plans through the comparative analysis results of two types of facility satisfaction surveys with different dormitory management subjects. As a result of the satisfaction survey on dormitory students, despite the difference in the construction time of the dormitories, the survey confirmed that the evaluation of the dormitory was generally satisfactory and there was no significant difference.
충격파 터널의 정상 유동 유지 시간 계산 및 연장을 위한 연구
김근영(Keun Young Kim),양성모(Sungmo Yang),장원근(Won Keun Chang),진상욱(Sangwook Jin),최호진(Hojin Choi),변종렬(Jongryul Byun),황기영(Kiyoung Hwang),박기수(Gisu Park) 한국추진공학회 2016 한국추진공학회 학술대회논문집 Vol.2016 No.12
충격파 터널은 다른 지상시험장비에 비해 적은 경비로 쉽게 고엔탈피 환경을 모의할 수 있다는 장점을 가지지만 정상 유동 유지 시간이 수 ms로 짧다는 단점을 가지고 있다. 이에 본 연구진은 정상 유동 유지 시간을 늘리는 방안을 모색하였고 충격파관의 고압관과 저압관 길이 대비에 따른 정상 유동 유지 시간의 변화를 확인하고자 본 연구를 수행하였다. 실험에 앞서 1차원 해석 프로그램으로 충격파관 내의 유동 압력을 계산하여 충격파관 길이 대비에 따른 정상 유동 유지 시간 변화 양상을 확인하였다. 그리고 이를 바탕으로 충격파관 내의 실제 압력 측정 실험을 수행하였다. 본 논문에서는 충격파 터널의 정상 유동 시간 연장에 관한 결과를 비교 및 정리하여 수록하였다. Shock tunnels have the advantage that they can easily simulate high enthalpy condition with less cost compared to other ground test equipment, but they have a disadvantage that the steady flow holding time is short as several milliseconds. In this study, we tried to increase the steady flow holding time and investigated the variation of the steady flow holding time according to the contrast of the driver tube and the driven pipe of the shock tube. Before the experiment, the flow pressure in the shock tube was calculated by the one - dimensional analysis program, and the variation of the steady flow holding time according to the length of the shock tube was confirmed. Based on this, the actual pressure measurement experiment in the shock tube was performed. In this paper, we compare and summarize the results of the extension of the steady flow time of the shock tunnel.
김근영 ( Kim Keun-young ),리신호 ( Rhee Shin-ho ),송창섭 ( Song Chang-seob ),주호길 ( Joo Ho-gil ),엄성준 ( Eom Seong-jun ),박종범 ( Park Jong-beom ),장문기 ( Jang Moon-ki ) 한국농공학회 2002 한국농공학회 학술대회초록집 Vol.2002 No.-
The construction method of a dirt-walled house is studied in order to develop eco-friendly store house. A dirt-walled house is constructed based on wall frame(Korean traditional style). The main material is soil (mud).
김근영(Kim Keun-Young) 한국체육과학회 2001 한국체육과학회지 Vol.10 No.2
고혈압의 치료목적은 강압, 합병증의 예방, QoL의 개선이다. 이를 위해 지금까지 약물요법은 물론 운동요법에 관해 많은 연구가 보고되었다. 특히 고혈압은 운동방법, 지도 처방을 각 환자개인의 운동생리학적 특성에 맞추는 것이 필요하다고 사료된다. The intended physical activity, trouble, suppression effect, and mechanism have been fully described with regard to hypertension and exercise therapy. Objects of hypertensive therapy are suppression, prevention against complications, improvement in quality of life. A wide range of researches on excercise therapy including pharmaceutical therapy have been reported to the betterment of hypertension. Above all, compliance is very important to exercise therapy due to the fact that hypertension could be remedied by long-term therapy. It is necessary for each individuals to be adjusted by the ways to exercise, instruction, and prescription for their physiological traits. It is required for the prevention of hypertension that individuals should measure their blood pressure and know their physical fitness on a regular basis.
대학 기숙사 관리 운영 주체별 만족도 비교 분석 - J 대학교를 중심으로 -
김근영 ( Kim Keun-young ),장명훈 ( Jang Myunghoun ) 한국건축시공학회 2021 한국건축시공학회 학술발표대회 논문집 Vol.21 No.1
In order to maintain the existence of a university in the era of infinite competition, it is actively promoting the establishment of a school dormitory, one of the welfare facilities, as a way to attract students who want to enter the university. In the past, university dormitories were built by the university and managed and operated on themselves, but recently, due to the poor financial situation of the university, university dormitories promoted BTL method that private construction company built dormitories and rented them for a certain period of time to manage and operate. J University has dormitories managed and operated by itself and dormitories managed and operated by entrusting the private sector. User satisfaction surveys are conducted on two dormitory facilities with different management and operation organizations, and the contents of the survey are compared and analyzed. This study is expected to be used as basic data when planning a dormitory remodeling project or a new dormitory establishment project in the future.