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하윤석,양진혁,원석희,이명수,Ha, Yun-Sok,Yang, Jin-Hyuk,Won, Seok-Hee,Yi, Myung-Su 대한용접접합학회 2008 대한용접·접합학회지 Vol.26 No.3
As ships become to be larger than ever, the thicker plate and the higher tensile steel plate are used in naval shipyard. Though special chemical composition is needed for high-tensile steels, recent high-tensile steels are made by the TMCP(Thermo-Mechanical control process) skill. The increase of yield stress and tensile stress of TMCP steels is induced from bainite phase which is transformed from austenite, but that increased yield stress can be vanished by another additional thermal cycle like welding and heating. As thermal deformations are deeply related by yield stress of material, the study for prediction of plate deformation by heating should reflect principle of TMCP steels. This study developed an algorithm which can calculate inherent strain. In this algorithm, not only the mechanical principles of thermal deformations, but also the predicting of the portion of initial bainite is considered when calculating inherent strain. The simulations of plate deformation by these values showed good agreements with experimental results of normalizing steels and TMCP steels in welding and heating. Finally we made an inherent strain database of steels used in Class rule.
하윤석(Yun-Sok Ha),김광택(Kwang Taek Kim),남욱(Wook Nam),박홍주(Hongzoo Park),유상준(Sangjun Yoo),이찬호(Chan Ho Lee),정호석(Ho Seok Chung),최우석(Woo Suk Choi),김지연(Jiyoun Kim),신재은(Jaeeun Shin),김정현(Jeong Hyun Kim),곽철(Cheol 대한비뇨기종양학회 2021 대한비뇨기종양학회지 Vol.19 No.3
Purpose: The survey was conducted on Korean men to examine information acquisition channel for prostate cancer high risk group as part of the “Blue Ribbon Campaign” of the Korean Urological Oncology Society. Materials and Methods: An online survey of 500 men aged 50 years old or older was completed to query investigation of the status of prostate cancer awareness and information acquisition from February 4 to February 9, 2021. Results: Most men in their 50s and older are well aware that prostate cancer can also occur in young men in their 40s, so the rate of misunderstanding of the timing of prostate cancer screening after their 60s is very low. Two-thirds of all respondents (67.2%) were also confirmed that prostate cancer had no initial symptoms and was not included in the national cancer screening. Seventy-five percent of people look up information on their own in case of suspected prostate cancer, and 51.6% seek out knowledge on their own to prevent prostate cancer. Of the respondents, 27.4% of men contacted prostate cancer-related information within the past year, and the percentage of people contacted through ‘Internet/Phone,’ ‘People Around’ and ‘Television’ was high. The most trusted channel among prostate cancer information channels was ‘medical professionals,’ but the experience rate was not high, and the channel with high experience rate and reliability was shown as ‘television.’ Conclusions: Much effort is still needed to understand the information acquisition behavior of Korean men and to improve awareness of early screening for prostate cancer.
민경찬(Kyungchan Min),윤석중(Seok Joong Yun),박한수(Hansoo Park),하윤석(Yun-Sok Ha) 대한비뇨기종양학회 2021 대한비뇨기종양학회지 Vol.19 No.3
Human body contains diverse microbes. Different microbes are identified at different organs. Urine was thought as sterile, but according to progression in important technologies like 16S rRNA gene sequencing and expanded quantitative urine culture, it is known that diverse microbes exist in genitourinary tract. Microbiome contains the microbes and surrounding microenvironments. In addition to urologic difficulties like interstitial cystitis or chronic prostatitis, malignancies are thought to be related to microbiomes. In this review, we summarized several studies in urologic malignancies, especially prostate cancer and kidney cancer.
유비쿼터스 헬스케어 서비스 기반의 과민성 방광 환자 관리 시스템 설계 및 구현
황경순(KyoungSoon Hwang),이선아(SunA Lee),이건명(KeonMyung Lee),김원재(Wun-Jea Kim),윤석중(Seok Jung Yun),하윤석(Yun Seok Ha) 한국정보과학회 2007 한국정보과학회 학술발표논문집 Vol.34 No.2C
최근, 임상연구는 유비쿼터스 헬스케어 서비스를 이용한 환자 개인의 맞춤형 의료 서비스에 관한 연구가 진행되고 있다. 유비쿼터스 헬스케어 서비스 시스템은 원격의 환자를 유무선 네트워킹 기술을 활용하여 “언제 어디서나" 이용가능한 의료서비스를 제공할 수 있다. 이러한 기술들 덕택에, 의료 서비스가 의료기관 내에서 실-생활 영역으로 공간적인 확대와 특정 질병치료에서 평생 건강관리로 시간적인 확대가 가능해졌다. 본 논문에서는 유비쿼터스 환경에서 환자와 전문의가 실시간으로 상호작용을 통해 최적의 의료서비스 제공할 수 있는 유비쿼터스 헬스케어 서비스 기반의 과민성 방광 환자 관리 시스템을 설계하고 구현하였다.