Case Reports : Basal Cell Carcinoma on the Pubic Area: Report of a Case and Review of 19 Korean Cases of BCC from Non-sun-exposed Areas

( Jin Park ),( Yong Sun Cho ),( Ki Hun Song ),( Jong Sun Lee ),( Seok Kweon Yun ),( Han Uk Kim ) 대한피부과학회 2011 Annals of Dermatology Vol.23 No.3

Basal cell carcinoma (BCC) is one of the most commonly diagnosed malignant skin tumors and develops characteristically on sun-exposed areas, such as the head and neck. Ultraviolet light exposure is an important etiologic factor in BCCs, and BCCs arising from non-sun- exposed areas are, therefore, very rare. In particular, the axilla, nipple, the genital and perianal areas are not likely to be exposed to ultraviolet light; thus, if BCC develops in these areas, other predisposing factors should be considered. Herein, we report a case of BCC arising on the pubic area in a 70-year-old man. We also performed a survey of the literature and discussed the 19 cases of BCC from non-sun-exposed areas reported to date in Korea.

군집 별 표준곡선 매개변수를 이용한 치밀오일 생산성 예측 순환신경망 모델

한동권(Dong-kwon Han),김민수(Min-soo Kim),권순일(Sun-il Kwon) 한국정보통신학회 2021 한국정보통신학회 종합학술대회 논문집 Vol.25 No.2

치밀오일 미래 생산성 예측은 잔류오일 회수량 및 저류층 거동 분석을 위해 중요한 작업이다. 일반적으로 석유공학적 관점에서 감퇴곡선법을 이용하여 생산성 예측이 이루어지는데, 최근에는 데이터기반의 머신러닝 기법을 이용한 연구도 수행되고 있다. 본 연구에서는 딥러닝 기반 순환신경망과 LSTM, GRU 알고리즘을 이용하여 미래 생산량 예측을 위한 효과적인 모델을 제안하고자 한다. 입력변수로는 치밀오일 생산 시 산출되는 오일, 가스, 물과 이와 더불어 다양한 군집분석을 통해 산출된 표준곡선이 주요 매개변수이고, 출력변수는 월별 오일 생산량이다. 기존의 경험적 모델인 감퇴곡선법과 순환신경망 모델들을 비교하였으며, 모델의 예측성능을 향상시키기 위해 하이퍼파라미터 튜닝을 통해 최적 모델을 도출하였다. Predicting future productivity of tight oil is an important task for analyzing residual oil recovery and reservoir behavior. In general, productivity prediction is made using the decline curve analysis(DCA). In this study, we intend to propose an effective model for predicting future production using deep learning-based recurrent neural networks(RNN). LSTM, and GRU algorithms. As input variables, the main parameters are oil, gas, water, which are calculated during the production of tight oil, and the type curve calculated through various cluster analyzes. the output variable is the monthly oil production. Existing empirical models, the DCA and RNN models, were compared, and an optimal model was derived through hyperparameter tuning to improve the predictive performance of the model.

한강둔치에서 재배된 농작물 중의 미중금속 함량에 관한 연구

김연천,전옥경,양혜란,최영희,한선희,이강문,Kim, Youn-Choen,Chun, Ock-Kyoung,Yang, Hae-Ran,Choi, Young-Hee,Han, Sun-Hee,Lee, Kang-Moon 한국식품위생안전성학회 2000 한국식품위생안전성학회지 Vol.15 No.3

This study was conducted to determine the content of trace metals in crops cultivated in Han-riverside, Anyang stream, Tan stream, and Jungryang stream. Trace metals (Pb, Cr, Cd, Fe, Zn, Cu, Hg) were detected in 36 crops, 285 samples by Atomic Absorption Spectrophotometer and Mercury Analyzer. The average concentration of trace metals in crop samples was in the order of Fe (34.592 ppm)>Mn (11.071 ppm)$\geq$Zn(8.853 ppm)>Cu(1.795 ppm)>Cr(0.237 ppm)>Pb(0.100 ppm)>Cd(0.011 ppm)>Hg(0.003 ppm). In crop samples, the contents of Fe, Cu, Mn, and Zn, which ranges were 0.004-203.083 ppm, 0.017~22.727 ppm, 0.000~74.373 ppm, 0.080~37.166 ppm, respectively, were relatively higher than those of Pb, Cd, Cr, and Hg, which ranges were 0.000~0.654 ppm, 0.000~0.270 ppm, 0.000~l.229 ppm, 0.000~0.037 ppm, respectively. The concentration of trace metals in crop samples was in the order of leafy vegetables > stem vegetables > root vegetables > fruity vegetables. In the root vegetables, such as radish, the content of Pb was leaf(0.055 ppm)>root(0.035 ppm), that of Cr, leaf (0.118 ppm)>root(0.031 ppm), that of Cd, leaf(0.004 ppm)>root(0.001 ppm), that of Hg, leaf(0.004 ppm)>root(0.001 ppm). As the results, it could be thought that root is the organ which doesn't accumulate the heavy metal ions, but absorb them.

Flexural Responses of Prestressed Hybrid Wide Flange Composite Girders

Sun?Jin Han,Deuck Hang Lee,Jae?Yuel Oh,Seung?Ho Choi,Kang Su Kim 한국콘크리트학회 2018 International Journal of Concrete Structures and M Vol.12 No.5

In this study, prestressed hybrid wide flange (PHWF) composite girders were proposed, and full-scale flexural tests were conducted to evaluate their structural performances. This new proposed girder system was developed and designed to effectively resist external loads considering the actual construction sequences. Two specimens with and without shear connectors were fabricated and tested to examine the effect of the shear connectors for achieving the fully-composite behaviors between a cast-in-place (CIP) concrete and the prefabricated prestressed steel–concrete composite girder. The test results showed that sufficient flexural strengths and deformation capacities can be obtained in both types of PHWF composite girders with and without shear connectors. To reflect the actual construction stages of the proposed PHWF composite girder, nonlinear flexural analyses were proposed considering the prestress effect and segmental effect before and after composite with the CIP concrete, respectively. The observed and analysis results of strain behaviors of the PHWF girder specimens were also compared and discussed in detail.

IMF와 관련된 스트레스로 신경정신과를 방문한 환자들의 사회정신의학적 특징

한선호,한상우,정한용 순천향의학연구소 1998 Journal of Soonchunhyang Medical Science Vol.4 No.2

Object : The objective of this study was to evaluate how IMF in Korea influenced the Korean in the psycho-social and neuropsychiatric aspects. Method : First, authors compared the number of the patients who had admitted in Seoul Soonchunhyang university hospital and Chun-an Soonchunhyang hospital between the period of January to September 1997(before IMF), and January to September 1998(after TMF). Second, authors evaluated the demographic factors and clinical characteristics of 84 patients who complained psychiatric symptoms induced by IMF related stresses. Results First, the number of stress related patients after IMF was more than before IMF(increased 31%), which suggests that IMF is the stressor of the people enough for psychiatric intervention. Second, IMF plays the role of the various stressors to Koreans (i.e, unemployment, retirement, economic loss, decreased incomes, familial conflicts, change of residence, urge to unemployed, etc) Third, IMF affects not only the urban clerical workers and merchants' employment and economic state but also the rural farmer and stock-farmers' economic state. Conclusion : IMF affects the Koreans' mental health in various aspects. So, it is important and urge to analyze and solve the IMF stresses which affect Koreans' mental health by psychosocial & community health approach.

유량지속곡선을 이용한 한강수계 총량관리 단위유역 오염기여도 분석

이한필 ( Han Pil Rhee ),최재호 ( Jaeho Choi ),이성준 ( Yong Seok Kim ),김용석 ( Sung Jun Lee ),황하선 ( Ha-sun Hwang ) 한국물환경학회 2017 공동 춘계학술발표회 Vol.2017 No.0

신경정신과 입원환자의 진단변화에 대한 고찰

정동선,정한용,한선호 순천향의학연구소 1996 Journal of Soonchunhyang Medical Science Vol.2 No.2

1) 총 1491명의 환자 중 신경증이 28%, 기분부전장애가 12.8%, 정신활성물질장애가 11.8% 순으로 높은 빈도를 보였고, 연도별 입원환자의 수는 1985년에 439명, 1990년에 591명, 1994년에 561명으로 증가하였다 감소하는 경향을 나타내었다. 2) 질환별 특성을 보면 정신활성물질장애, 신체형장애의 빈도는 증가하였고, 정신분열병, 양극성장애, 기질성장애는 감소하였으며, 신경증과 망상형장애, 외상후 스트레스장애는 감소하였다 증가하였고 기분부전장애는 증가하였다 감소하였다. 3) 정신분열병의 아형을 보면 긴장형, 분열형, 미분화형과 잔류형은 감소하였고, 편집형은 증가하였으며, 미분화형은 감소하였다 증가하였다. 4) 신경증에서 불안장애는 증가하는 경향을 보였으나 건강염려증, 강박신경증, 전환장애는 감소하는 경향을 보였다. The research on patients in the neuropsychiatry of Soonchunghyang University Hospital was conducted in 1985, 1990, 1994 following various aspects of clinical charactors and statistical methods. The research methods were choosen on the basis of patients' personal history and medical diagnoses. The diagnoses of the patients follow the DSN-Ⅲ-R Diagnostic criteria(APA 1987). Those diagnoses are following, organic mental disorder, schizophrenia, bipolar disorder, delusional disorder, neurosis, personality disorder, psychoactive substance use disorder, somatoform disorder, posttraumatic stress disorder, adjustment disorder, dysthymia, others. Results are following ; 1. It shows high rate of 28% neurosis, 12.8% dysthymia, 11.8% psychoactive substance use disorder out of 1491 patients. The number of patients institutionalized in the hospital is variable ; 439 in 1985, 591 in 1990, and 561 in 1994 2. psychoactive substance use disorder and form disorder is increased and schizophrenia, bipolar disorder and personality disorder is decreased and neurosis, delusional disorder and post traumatic stress disorder are decreased and increased again but dysthymia showed opposite tendency, increased first and decreased. 3. In case of schizophrenia, catatonic, disorganized, undifferentiated and residual are decreased and paranoid is increased. Undifferentiated is decreased for a while but increased again. 4. Anxiety disorder tends to increase but hypochondriasis and conversion disorder tends to decrease in neurosis.

유량지속곡선을 이용한 한강수계 총량관리 단위유역 오염기여도 분석

이한필 ( Han Pil Rhee ),최재호 ( Jaeho Choi ),이성준 ( Yong Seok Kim ),김용석 ( Sung Jun Lee ),황하선 ( Ha-sun Hwang ) 한국물환경학회 2017 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2017 No.-

과학영재의 논증 활동에서 나타나는 반박 유형 분석

한혜진 ( Hye Jin Han ),이태훈 ( Tae Hoon Lee ),고현지 ( Hyun Ji Ko ),이선경 ( Sun Kyung Lee ),김은숙 ( Eun Sook Kim ),최승언 ( Seung Urn Choe ),김찬종 ( Chan Jong Kim ) 한국과학교육학회 2012 한국과학교육학회지 Vol.32 No.4

The purpose of this study is to analyze the argumentation of gifted students in the perspective of rebuttal. Rebuttal is a significant indicator of argumentation quality; it is also an essential component for science learning through interaction. However, most previous research point out insufficient use of rebuttal in student`s argumentation. The argumentation of 37 8th grade students, enrolled in institutes for the scientifically gifted in Seoul, are observed and recorded for 4 hours. The argumentation topic is about how to measure the brightness of the sun. Based on Verheij`s (2005) five types of rebuttal patterns, the features of rebuttal are analyzed. It is found that students` argumentation include all of the five rebuttal types: rebuttal of the data, the claim, the warrant, warrant`s applicability, and connection between data and claim. It is also found that these five types can be categorized in two groups. The first group consists of first three types and is characterized by the disagreement with the validity of what has been said. The second group consists of the last two types and is characterized by the suggestion or additional information for missing links in argumentation.

외음부의 기저세포암

김보영 ( Bo Young Kim ),황선정 ( Sun Jung Hwang ),박병준 ( Byung Joon Park ),이은실 ( Eun Sil Lee ),한호섭 ( Ho Suap Han ),김용욱 ( Yong Wook Kim ),김태응 ( Tae Eung Kim ),노덕영 ( Duck Yeong Ro ),이안희 ( An Hi Lee ) 대한산부인과학회 2010 Obstetrics & Gynecology Science Vol.53 No.9

Basal cell carcinoma (BCC) is the most common human malignant neoplasm, accounting for 75% of all non-melanoma skin cancer. The incidence of BCC is strongly correlated with sun exposure as well as older age. Therefore, the vast majority of BCCs is observed in elderly patients on the sun-exposed skin of the head and neck with a frequency of more than 80%. BCC is very rare on sun-protected skin such as the perianal and genital regions and other etiologic factors must be considered in these cases. Although the pathogenesis of vulvar BCC is unclear, early diagnosis is very important. Because BCC in these areas sometimes seems innocuous, it is recommended that a biopsy of all suspect lesions be performed. We report a woman with BCC of the vulva treated with wide local resection and reviews the literatures on this subject.