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보건의료시설의 실내 예상 평균 온열감(PMV), 이산화탄소 농도, 소음도, 조도의 통합실내쾌적도(IEQh)를 통한 연간 실내 쾌적도 평가
이보람(Boram Lee),이대엽(Daeyeop Lee),반현경(Hyunkyung Ban),이세원(Sewon Lee),김규상(KyooSang Kim),이기영(Kiyoung Lee) 한국환경보건학회 2017 한국환경보건학회지 Vol.43 No.3
Objectives: A hospital is a complex building that serves many different purposes. The indoor environment in a hospital plays a major role in patient well-being and the work efficiency of the hospital staff. This study was conducted to evaluate overall comfort in two major hospitals over the course of one year. Methods: Various indoor environmental conditions were measured in two general hospitals for one year (April 2014 to April 2015). Monitoring alternated between the hospitals at one month per respective monitoring session. The indoor air temperature, relative humidity (RH), mean radiant temperature and air velocity were measured in order to calculate the predicted mean vote (PMV). Carbon dioxide concentration, noise level and illumination level were concurrently measured and applied to the overall IEQ acceptance model for the hospitals (IEQh). Results: The IEQh at the two general hospitals was different at five spaces within a building. The IEQh for summer and winter were significantly different. Real-time IEQh demonstrated that indoor comfort was affected by the hospital s operating hours due to operation of the HVAC system. The percentage of indoor comfort in the hospitals was higher using PMV than IEQh. Conclusion: IEQh in the hospitals was different at locations with different purposes. Indoor comfort assessment using IEQh was stricter than with PMV. Additional research is needed in order to optimize the IEQh model.
4 Cases of circumscribed acral hypokeratosis
( Sewon Jung ),( Wooseok Jeong ),( Seunghyun Moon ),( Taekgeun Lee ),( Hyun Hwangbo ),( Sookkyung Lee ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1
Circumscribed acral hypokeratosis (CAH) is a rare disorder characterized by a well-circumscribed and erythematous depressed patch on the palm or sole. Clinically, patches of depressed skin are seen most commonly on the thenar or hypothenar areas in middle-aged or elderly. Although the pathogenesis of CAH is not well established, trauma is uncommonly cited as a precipitating factor. Recent reports suggest that CAH may be caused by human papilloma virus (HPV). Histologically, it has a characteristic stair-like configuration between normal and involved skin with an abrupt thinning of the horny layer and a decreased granular layer, giving the clinical appearance of a punched-out lesion. The lack of epidermal atypia or cornoid lamellae clearly differentiates CAH from its clinical mimics, Bowen disease and porokeratosis. All lesions reported to date show benign biological behavior. We report four cases of circumscribed acral hypokeratosis occurring in old female with results from microscpic analysis, HPV testing and treatment.
Aggressive Clinical Deterioration of Recurrent Extramammary Paget’s Disease : A Case Report
Sewon Lee,Sang Yoon Kim,Heejin Bang,Kyoung Eun Lee Ewha Womans University School of Medicine 2022 EMJ (Ewha medical journal) Vol.45 No.4
Extramammary Paget’s Disease (EMPD) is a rare intraepithelial malignancy of apocrine bearing glands, which occur usually in the perianal region, vulva, scrotum, penis and ax-illa. Most of the disease are treated by surgical resection and the prognosis is generally good. Even though recurrent disease, it is usually slowly progressed with good prognosis. Here we describe the case of a 70-year-old male who has presented with initially just as an EMPD component of squamous cell carcinoma in inguinal skin, but he showed recur-rence of EMPD. The disease has progressed rapidly, finally he died of that EMPD in 2 months of recurrence. The purpose of this study is to report the rare case of fulminant disease course of EMPD after recurrence.
Progress in Improvement of Safety Information Transmission System
Sewon Park,Wiho Ha,Sohyeon Lee,Hyunki Kim,Juyeol Yun,Sungho Lee,Minwoo Lee 한국방사성폐기물학회 2023 한국방사성폐기물학회 학술논문요약집 Vol.21 No.1
In response to a regulatory mandate, all nuclear licensees are obligated to establish an information system that can provide essential information in the event of a radiation emergency by connecting the monitoring data of the Safety Parameter Display System (SPDS) or equivalent system to the Korea Institute of Nuclear Safety (KINS). Responding to this responsibility, the Korea Atomic Energy Research Institute (KAERI) has established the Safety Information Transmission System (SITS), which enables the collection and real-time monitoring of safety information. The KAERI monitors and collects safety information, which includes data from the HANARO Operation Work Station (OWS) and the HANARO & HANARO Fuel Fabrication Plant (HFFP) Radioactivity Monitoring System (RMS), and the Environmental Radiation Monitoring System (ERMS) & meteorological data. Currently, the transmission of this safety information to the AtomCARE server of the KINS takes place via the SITS server located in the Emergency Operations Facility (EOF). However, the multi-path of transmission through SITS has caused problems such as an increase in data transmission interruptions and errors, as well as delays in identifying the cause and implementing system recovery measures. To address these issues, a new VPN is currently being constructed on the servers of nuclear facilities that generate and manage safety information to establish a direct transmission system of safety information from each nuclear facility to the AtomCARE server. The establishment of a direct transmission system that eliminates unnecessary transit steps is expected to result in stable information transmission and minimize the frequency of data transmission interruptions. As of the improvement progress, a security review was conducted in the second and third quarters of 2022 to evaluate the security of newly introduced VPNs to the nuclear facility server, and based on the results of the review, security measures were strengthened. In the fourth quarter of 2022, the development of a direct transmission system for safety information began, and it is scheduled to be completed by the fourth quarter of 2023. The project includes the construction of the transmission system, system inspection, and comprehensive data stability testing. Afterward, the existing SITS located in the EOF will be renamed as the Safety Information Display System (SIDS), and there are plans to remove any unused servers and VPNs.