병원 외주부 디자인에 따른 병실모듈 연구

이현진 ( Lee¸ Hyunjin ),박원배 ( Park¸ Wonbae ) 한국의료복지건축학회 2021 의료·복지 건축 Vol.27 No.3

Purpose: It is important to plan the ward module at a time when the size of beds, the floor area, and the construction budget are all set prior to the hospital design. In this context this study aims (1) to derive various factors affecting the ward module, and (2) to analyze the appropriate room module according to the type. Methods: Design factors related to hospital modules are derived through precedential studies, and the types of ward elevation are classified by reviewing the drawings of 18 case hospitals. And the detailed dimensions and area of the derived elements are analyzed. Results: The X-axis modules of the ward are switched to long span structural columns of 9.9 m, 12.6 m and 13.2 m, but the ward modules still represent 6.6 m. The Y-axis module of the ward shows a dimension of 9 to 9.9m in the process of changing a multi-person room into a four-person room. Type A of curtain wall with columns located on the wall of the room and type B of curtain wall located in the center of the room are analyzed due to their variations. The square window type, which forms the elevation of the square window by exposing the columns to the elevation, and the outframe type, which protrudes from the structural columns and beams, have elevation designs limited. There are, however, no obstacles to the interior space of the hospital room, so the wall composition and furniture arrangement are expected to be free. The ward area of Curtain Wall Type A, which can secure an effective area of 5.9m*5.0m, are 52.1㎡. The Curtain Wall Type A, Square window type, and the outframe type are 49.8㎡. Implications: As part of the hospital standard module plan for economical and reasonable hospital building planning, a type was proposed in this study in conjunction with the external design. It is hoped that it be a base for standard module research linked together to the Central Treatment department, Outpatient department and underground parking lot.

Validation of the oxford classification of iga nephropathy: A Single-Center Study in Korean Adults

( Ho Young Lee ),( Sul Hee Yi ),( Mi Seon Seo ),( Jin Nam Hyun ),( Jin Seok Jeon ),( Hyunjin Noh ),( Dong Cheol Han ),( Seung Duk Hwang ),( So Young Jin ),( Soon Hyo Kwon ) 대한내과학회 2012 The Korean Journal of Internal Medicine Vol.27 No.3

Background/Aims: The recently published Oxford classification of IgA nephropathy (IgAN) proposed a split system for histological grading, based on prognostic pathological features. This new classification system must be validated in a variety of cohorts. We investigated whether these pathological features were applicable to an adult Korean population. Methods: In total, 69 adult Korean patients with IgAN were analyzed using the Oxford classification system at Soonchunhyang University Hospital, Seoul, Korea. All cases were categorized according to Lee`s classification. Renal biopsies from all patients were scored by a pathologist who was blinded to the clinical data for pathological variables. Inclusion criteria were age greater than 18 years and at least 36 months of follow-up. We excluded cases with secondary IgAN, diabetic nephropathy combined other glomerulopathies, less than 36 months of follow-up, and those that progressed rapidly. Results: The median age of the patients was 34 years (range, 27 to 45). Mean arterial blood pressure was 97 ± 10 mmHg at the time of biopsy. The median follow-up period was 85 months (range, 60 to 114). Kaplan-Meier analysis showed significant prognostic predictions for M, E, and T lesions. A Cox proportional hazard regression analysis also revealed prognostic predictions for E and T lesions. Conclusions: Using the Oxford classification in IgAN, E, and T lesions predicted renal outcome in Korean adults after taking clinical variables into account.

[PA-0032] Comprehensive analysis of LTR-RT activation in Panax ginseng

Hyunjin Koo(Hyunjin Koo),Hyeonah Shim(Hyeonah Shim),Woohyeon Cho(Woohyeon Cho),Hyeji Lee(Hyeji Lee),Young Ju Oh(Young Ju Oh),Tae-Jin Yang(Tae-Jin Yang) 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-

Cu+-incorporated TiO2 overlayer on Cu2O nanowire photocathodes for enhanced photoelectrochemical conversion of CO2 to methanol

Lee, Kangha,Lee, Seokwon,Cho, Hyunjin,Jeong, Sunil,Kim, Whi Dong,Lee, Sooho,Lee, Doh C. Elsevier Inc 2018 Journal of Energy Chemistry Vol.27 No.1

Vision 기반 강화학습 기반 네비게이션 알고리즘 개발을 위한 시뮬레이터 개발

이현진(Hyunjin Lee),이건희(Geonhee Lee),박태정(Taejung Park),정준우(Junwoo Jeong),이치범(Chibum Lee) 한국자동차공학회 2022 한국자동차공학회 부문종합 학술대회 Vol.2022 No.6

A Cluster, Group, and Subgroup Catalog Using SDSS DR12

Youngdae Lee,Hyunjin Jeong,Jongwan Ko,Joon Hyeop Lee,Jong Chul Lee,Hye-Ran Lee,Yujin Yang,Soo-Chang Rey 한국천문학회 2015 天文學會報 Vol.40 No.2

XGBoost 기반의 2단계 확률적 일사량 예측과 태양광 예측 알고리즘의 성능 검증

이유림(Yurim Lee),김현진(Hyunjin Kim),이다한(Dahan Lee),이채정(Chaijung Lee),이두희(Duehee Lee) 대한전기학회 2019 전기학회논문지 Vol.68 No.12

We propose the novel solar power forecasting algorithm by using the Extreme Gradient Boosting (XGBoost) machine based on the 2-stage forecasting structure. Our algorithm is implemented to solve three problems. First, the solar power is linearly proportional to the solar irradiation on a target solar panel, but it is hard to obtain the target solar irradiation. Therefore, in the first stage, we predict the target solar irradiation by using the XGBoost based on numerical weather prediction, which is measured on a different location but modified for the target location. Second, the forecasting errors on the predicted solar irradiation can be transferred to the second stage when the predicted solar irradiation is used to predict the solar power. We forecast the conditional error distribution of predicted irradiation by collecting forecasting errors, and we sample solar irradiation scenarios, which are converted to the solar power scenarios. Then, the final point forecast of solar power is estimated by calculating the median of scenarios so that we can improve the forecasting accuracy. Third, in this process, the quality of numerical weather prediction deteriorates as the target hour is farther. Therefore, we build forecasting models for each target hour in parallel to minimize the forecasting accuracy deterioration from the quality deterioration. Finally, we verify our proposed algorithm by participating in the solar power forecasting competition hosted by KPX.

Cancer risk based on alcohol consumption levels: a comprehensive systematic review and meta-analysis

Seunghee Jun(Seunghee Jun),Hyunjin Park(Hyunjin Park),Ui-Jeong Kim(Ui-Jeong Kim),Eun Jeong Choi(Eun Jeong Choi),Hye Ah Lee(Hye Ah Lee),Bomi Park(Bomi Park),Soon Young Lee(Soon Young Lee),Sun Ha Jee(Su 한국역학회 2023 Epidemiology and Health Vol.45 No.-

OBJECTIVES: Alcohol consumption is a well-established risk factor for cancer. Despite extensive research into the relationship between alcohol consumption and cancer risk, the effect of light alcohol consumption on cancer risk remains a topic of debate. To contribute to this discourse, we conducted a comprehensive systematic review and meta-analysis. METHODS: Our systematic review aimed to investigate the associations between different levels of alcohol consumption and the risk of several cancer types. We focused on analyzing prospective associations using data from 139 cohort studies. Among them, 106 studies were included in the meta-analysis after a quantitative synthesis. RESULTS: Our analysis did not find a significant association between light alcohol consumption and all-cause cancer risk (relative risk, 1.02; 95% confidence interval, 0.99 to 1.04), but we observed a dose-response relationship. Light alcohol consumption was significantly associated with higher risks of esophageal, colorectal, and breast cancers. Light to moderate drinking was associated with elevated risks of esophageal, colorectal, laryngeal, and breast cancers. Heavy drinking was also found to contribute to the risk of stomach, liver, pancreas, and prostate cancers, thereby increasing the risk of almost all types of cancer. Additionally, females generally had lower cancer risks compared to males. CONCLUSIONS: Our findings highlight that cancer risks extend beyond heavy alcohol consumption to include light alcohol consumption as well. These findings suggest that there is no safe level of alcohol consumption associated with cancer risk. Our results underscore the importance of public health interventions addressing alcohol consumption to mitigate cancer risks.

Supervised learning에 기반한 돼지 발성음 분류에 관한 연구

민경진(KyoungJin Min),이혁재(HyeokJae Lee),황현진(HyunJin Hwang),이상엽(SangYeob Lee),이강휘(KangHwi Lee),문상호(SangHo Moon),이정은(JungEun Lee),이정환(Jeong Whan Lee) 대한전기학회 2021 전기학회논문지 Vol.70 No.5

This study categorizes the current situation of the pig as supervised learning through the analysis of the pig’s sound. Audio data were obtained from video data obtained by recording at a barn. Speech data was preprocessed to extract features in the time domain and frequency domain, and formants and MFCC were extracted in the frequency domain. Decision Tree, K-Nearest Neighbors, and Support Vector Machine were used for classification, and linear and RBF kernels were used for SVM. The experiment was conducted two times: classifying using features used in Praat and MDVP, which are speech analysis programs, and classifying using MFCC used in speech recognition. After classification, k-fold verification was performed. As a result of the experiment, it can be seen that there is a difference in classification according to the characteristics of using the same voice, and in the case of a situation in which the sound is unified, such as ‘cough,’ the judgment of any classifier is clear. However, in other situations, it is considered necessary to consider the characteristics of pigs by further observing their socialization behavior.

한강(중랑천)의 오염도 측정

이계남,이은정,천청녀,하미선,홍현진,이연희 서울여자대학교 자연과학연구소 2002 자연과학연구논문집 Vol.14 No.-

한강의 오염도 측정을 위한 생물학적 지표로 대장균의 계절별 분포도를 측정하여 한강의 오염도를 예측하고, 상수원 및 레저용 수질에 적합한지를 파악하고자 하였다. 2000년 4월부터 2001년 3월까지 일년동안 매달 1-2회 한강 지류인 중랑천에서 대장균을 분리하였다. 우리나라의 수질 규격으로 식수원의 일반세균 규격은 100 CFU/㎖ 이고 대장균의 기준은 원수의 경우 50 CFU/㎖. 정수된 후에는 음성이어야 하며, 레저용수의 대장균 기준은 음성이고, 하수처리장의 경우 ㎖당 1,000개 이하이다. 본 실혐의 결과는 1년 동안의 중랑천의 수질이 상수원이나 레저용으로 부적당한 것으로 나타났는데, 4월과 1월에는 대장균이 검출되지 않아 상수원이나 레저용수로 적합할 것으로 나타났으나, 일반세균의 기준치인 100 CFU/㎖을 크게 벗어나 상수원이나 레저용으로 사용하기 부적당한 것으로 나타났다. 4월과 1월을 제외하고는 대장균이 검출되어 상수원이나 레저용으로 적합지 못한 것 으로 나타났고, 특히 9월과 10월에는 하수처리장의 기준치인 1,000 CFU/㎖에 비해 각각 1.140 CFU/㎖과 1.030 CFU/㎖ 이 검출되어 보다 엄격한 처리가 필요한 것으로 나타났다. 또한 최근에 심각한 문제로 대두되고 있는 항생제내성 세균의 환경중 분포경향을 파악하고자 하여 항생제 내성 대장균의 분포경향을 관찰하였다. Cephalothin 내성 대장균은 5월 이후로 증가되어 9월에 최대치를 보이다가 점차 감소하는 것으로 나타났고, norfloxacin 내성 대장균은 2000년 5월부터 9월까지 발견되었다가 그 이후로는 발견되지 않았다. 이러한 결과는 한강의 수질을 보전하기 위해서 중랑천 주변의 생활하수 및 축산폐수의 하수 처리를 엄격히 하여 수질을 보전해야 함을 시사하고 있다. In order to measure the contamination level of Han River, Escherichia coli, the biological indicator for the pollution, was observed to check the quality of water whether it is proper as the source for drinking water or recreational impoundment. Surface water of Joongrang stream, a branch of Han River, was collected monthly from April 2000 to March 2001. Guideline of E. coli for drinking water or recreational impoundment is negative and for sewage is less than 1,000 CFU/㎖. All year round, Joongrang stream was not proper for drinking water or recreation. CFUs of total bacteria were exceeded the guideline for source of drinking water, even though E. coli was not detected on April and January. Except these months, E. coli was detected especially during a period from September to October and CFUs of E. coli detected in Joongrang stream were 1,140 CFU/㎖ and 1,030 CFU/㎖ exceeding the guideline for sewage treatment. When CFU of antibiotic-resistant E. coli were counted in order to understand the influence of the misuse or overuse of antibiotics to the environmental pollution. Cephalothin-resistant E. coli were present all around the year except April and Febraury. And norfloxacin-resistant E. coli were detected from May to September. This showed that the Joongrang stream must be treated before it entered to the mainstream.