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뇌 혈관의 아급성 색전증을 동반한 중증 난소과자극 증후군 1례
김승현,강경화,양윤석,황인택,박준숙,김정현,김진섭,Kim, Seung-Hyun,Kang, Kyoung-Hwa,Yang, Yun-Seok,Hwang, In-Taek,Park, Jun-Suk,Kim, Jeong-Hyun,Kim, Jin-Sub 대한생식의학회 2008 Clinical and Experimental Reproductive Medicine Vol.35 No.2
난소과자극 증후군 (Ovarian Hyperstimulation, OHSS)은 배란 유도의 가장 심각한 합병증 중의 하나로서 난소 비대, 복수, 흉수, 심막 삼출액, 혈액 농축, 전해질 이상 및 혈전증 등의 증상을 초래하는 것으로 알려져 있다. 특히 난소과자극 증후군 환자에서 혈전 색전증의 발생은 적절한 치료에도 불구하고 발생하고 예측이 어렵고 환자를 사망에 이르게 할 수도 있기에 가장 위험한 합병증 중의 하나로 인식되고 있다. 저자들은 체외수정 시술 후 중증 난소과자극 증후군 환자에서 본원 입원 치료 중 합병된 색전증에 대한 증례를 경험하였기에 보고하는 바이다. Ovarian hyperstimuation syndrome (OHSS) is the most serious complication of controlled ovarian stimulation. It causes symptoms such as, ovarian enlargement, ascites, pleural effusion, pericardial effusion, hemoconcentration, electrolyte imbalance, and thromboembolism. Although proper management is done, thromboembolism could occur and is difficult to predict. Moreover it can cause death. Consequently thromboembolism is the most dangerous complication of OHSS. We experienced a OHSS patient with thromboembolism of the brain after having IVF-ET.
언양-밀양 간 국도24호선 석남고개 주변부 절토사면 지반특성
김승현,구호본,이종현,김승희,Kim. Seung-Hyun,Koo. Ho-Bon,Rhee. Jong-Hyun,Kim. Seung-Hee,Kim. Jin-Hwan,Son. Young-Jin 한국방재학회 2008 한국방재학회 학술발표대회논문집 Vol.2008 No.1
울산광역시 울주군 상북면에서 경상남도 밀양시 산내면을 잇는 국도 24호선은 왕복 2차선으로 기존 도로의 선형이 매우 불량하고, 위험절토사면이 집중적으로 분포되어 있다. 2002년에는 관련기관과의 연계로 울주-밀양 간 국도 24호선의 도로절토사면에 대한 현황조사가 실시되었으며, 그 중 57개소 현장은 위험절토사면으로 분류하여 추가적인 상세 현장조사가 실시되었으며, 불연속면의 방향에 관한 다양한 정보들이 취득되었다. 2002년에는 관련기관과의 연계로 울주-밀양 간 국도 24호선의 도로절토사면에 대한 현황조사가 실시되었으며, 그 중 57개소 현장은 위험절토사면으로 분류하여 추가적인 상세 현장조사가 실시되었으며, 불연속면의 방향에 관한 다양한 정보들이 되었으며, 이에 대한 길이별, 경사별 분포현황, 불연속면 발달상태 등 여러제반 특성을 살펴 보았다. National Road No.24 connects Ulju-gun in Ulsan Metropolitan City and Milyang city in south Gyongsang Province. The width of the road is small and narrow and many of the dangerous cut slopes are distributed along the way. In 2002, the government officer carried on the brief exploration about road cut slopes, and KICT conduct a detailed additionally investigations 57 dangerous cut slope sites of them. We gained a variety of information of the each slope such as length, slope, discontinuites et al.
정재민(Jae Min Jeong),박재영(Jae Young Park),이종진(Jong Jin Lee),김용운(Yong Woon Kim),김승현(Seung Hyun Kim) 大韓環境工學會 2013 대한환경공학회지 Vol.35 No.5
강변여과용 수평집수관을 모사하는 파일럿 규모의 모래통 실험을 수행하였으며, 다양한 출구유속에 대한 수평집수관에서의 수두분포를 구하였다. Kim24)이 수행한 실험실 규모의 수평집수관에서의 손실수두에 Kim25)이 개발한 이론 즉, 작은 규모의 수평집수관에서의 손실수두로부터 큰 집수관의 손실수두를 계산하는 방법을 적용하여 본 연구의 관측치와 비교함으로써 Kim25)의 이론이 타당함을 알 수 있었다. 또한, 이들의 이론을 적용하여 본 연구에서의 관측치로부터 실규모 집수관에서의 수두분포를 구하는 방안을 예를 들어 설명함으로써 강변여과의 수평집수관 설계방법을 제시하였다. A pilot-scale sand-box experiment simulating a lateral of collector well used in riverbank filtration was performed, and hydraulic head distributions along the lateral were measured according to the various drawdowns at the well. The results of this experiment were compared to the predicted values obtained using a theory previously developed by Kim25) in order for its validation. This theory predicts the head loss in a large-scale lateral given the loss in a small-scale one, and to have actual values for comparison, the results from a lab-scale experiment previously performed by Kim24) were employed. Comparing the experimental values to the extrapolated value indeed confirmed the validity of the theory. A procedure to determine the hydraulic head distribution of a practical-scale lateral was also presented applying the theory to the experimental result of this study in an effort to show the process of lateral design for riverbank filtration.
베트남 중부지방 도로비탈면 노출 특성 및 조사우선순위 결정 연구
김승현,권오일,김재정,구호본,Kim, Seung-Hyun,Kwon, O-Il,Kim, Jae-Jung,Koo, Hobon 대한지질공학회 2017 지질공학 Vol.27 No.3
베트남은 사이클론과 집중호우의 영향으로 매년 100회 이상의 대형 산사태가 발생하고 있다. 그럼에도 불구하고 도로비탈면이나 산지의 재해를 미연에 예방하기 위한 과학적인 관리 체계는 갖추지 못하고 있다. 본 연구에서는 베트남의 중부지방인 Danang의 Hoang Sa Costal Road 및 Quangnam의 Ho Chi Minh Road 내 존재하는 도로비탈면에 대한 기초조사를 통해 산사태를 유발할 수 있는 위험도 인자와 피해도 인자를 습득하였다. 취득자료에 대한 경험론적 분석을 통해 베트남 도로비탈면의 노출특성을 고려한 조사우선순위 기법을 개발하였으며, 이를 통해 베트남 도로비탈면의 체계적인 관리를 위한 과학적인 관리토대를 마련하였다. Large landslides have occurred more than 100 times each year by the influence of cyclones and torrential rain each year in Vietnam. Nevertheless, they $don^{\circ}$Øt have a scientific management system to prevent the landslide disaster in advance. In this study, we acquisited the risk factor and damage factor about each slope throughout basic survey at Hoang Sa Costal Road, Danang and at Ho Chi Minh Road, Quangnam. The priority of investigation technique considering of the exposure characteristics of the road slope in Vietnam developed by the empirical analysis with the acquired data. As a result, we can set the foundation of scientific management for the road slope management system in Vietnam.
고에너지배관 파단위치에 따른 배관휩과 충격파의 영향 평가
김승현,장윤석,최청열,김원태,Kim, Seung Hyun,Chang, Yoon-Suk,Choi, Choengryul,Kim, Won Tae 한국압력기기공학회 2017 한국압력기기공학회 논문집 Vol.13 No.1
When a sudden rupture occurs in high energy lines, ejection of inner fluid with high temperature and pressure causes blast wave as well as thrust forces on the ruptured pipe itself. The present study is to examine pipe whip behaviors and blast wave phenomena under postulated pipe break conditions. In this context, typical numerical models were generated by taking a MSL (Main Steam Line) piping, a steam generator and containment building. Subsequently, numerical analyses were carried out by changing break locations; one is pipe whip analyses to assess displacements and stresses of the broken pipe due to the thrust force. The other is blast wave analyses to evaluate the broken pipe due to the blast wave by considering the pipe whip. As a result, the stress value of the steam generator increased by about 7~21% and von Mises stress of steam generator outlet nozzle exceeded the yield strength of the material. In the displacement results, rapid movement of pipe occurred at 0.1 sec due to the blast wave, and the maximum displacement increased by about 2~9%.
도시생태계 건전성 증진을 위한 녹지총량 평가법 개발과 적용
김승현,공학양,김태규,Kim, Seung-Hyun,Kong, Hak-Yang,Kim, Tae-Kyu 응용생태공학회 2015 Ecology and resilient infrastructure Vol.2 No.4
본 연구는 도시생태계 건전성 증진을 위한 녹지총량제 도입을 위해 국내 법규를 토대로 녹지총량의 정의와 유형을 분류하고, 전국단위의 녹지총량 평가지표를 도출하여 산정하였으며, 이를 토대로 전국 시도별 녹지총량을 지수화 하였다. 결과는 다음과 같다. 첫째, 녹지총량은 "도시공원 및 녹지 등에 관한 법률", "토의 계획 및 이용에 관한 법률" 등에서 정의하는 '녹지', '공원녹지', '녹지지역' 등을 포함하는 포괄적 의미의 녹지이다. 둘째, 녹지총량 산정을 위한 녹지의 유형은 도시공원과 완충녹지, 경관녹지, 연결녹지 등의 시설녹지를 포함하는 공원녹지, 보전녹지지역, 생산녹지지역, 자연녹지지역을 포함하는 녹지지역, 교목, 관목, 지피 등의 식생으로 점유된 산림, 초지, 습지를 포함하는 녹피지로 분류할 수 있다. 셋째, 1인당 공원녹지, 공원녹지율, 1인당 녹지지역, 녹지지역율, 1인당 녹피면적, 녹피율 등 6가지 평가지표를 적용하여 전국 시도별 녹지총량을 산정하였으며, 이를 토대로 시도별 녹지총량을 지수화한 결과에 따르면 특별 광역시에서는 세종특별시가 가장 높았고 서울특별시와 대구광역시가 가장 낮았으며, 도 지역에서는 충청북도가 가장 높았고 경기도와 제주특별자치도가 가장 낮았다. This study defined and classified no-net-loss-of-greenness (NNLG) based on the law, and then assessed the NNLG index by metropolitan cities and provinces in Korea after estimating NNLG evaluation indicators for the introduction of NNLG for health improvement of urban ecosystems. The results are as follows. First, NNLG was the comprehensive meaning that was included in the greenbelt and park greenbelt and the green area which was defined by the Act on Urban Parks, Greenbelts, etc. and the National Land Planning and Utilization Act respectively. Second, NNLG was classified as a park greenbelt which was included urban parks and greenbelts such as buffer greenbelts, scenic greenbelts, and connecting greenbelts, green areas which was included in green conservation areas, green production areas, green natural areas, and green coverage which is included forests, grasslands, and wetlands that were occupied by vegetation such as trees, shrubs, and plants. Third, NNLG index by cities and provinces was assessed based on the estimation of NNLG evaluation indicators, which included parks and greenbelt areas per capita, green areas per capita, green coverage per capita, ratio of parks and greenbelts, ratio of green areas, and ratio of green coverage. As a result, Sejong city got the highest point of NNLG index and Seoul and Daegu got lowest points of NNLG index among metropolitan cities in Korea. Chungbuk got the highest point of NNLG index and Kyonggi and Jeju got lowest points of NNLG index among provinces in Korea.
좌우 늑골하 부위 체표온도와 혈중 Aminotransferase 농도와의 관계
김승현,박명원,조정훈,장준복,이경섭,Kim, Seung-Hyun,Park, Myung-Won,Cho, Jung-Hoon,Jang, Jun-Bock,Lee, Kyung-Sub 대한한방체열의학회 2004 대한한방체열의학회지 Vol.3 No.1
This study examined the relationship between aminotransferase and DITI in the diagnosis of Liver Qi stagnation. An analysis was performed on the thermographic findings of 17 subjects with abnormally high aminotransferase value and 26 with no problem in blood sample at the Kangnam Korean Hospital, KyungHee University, Seoul, Korea, from March 2003 to May 2003. The body temperature was assessed by DITI thermographic measurements were performed on Rt. and Lt. subcostal area. Value of ${\delta}T$ and absolute value of ${\delta}T$ were tested by Mann-whitney U test. The absolute value of ${\delta}T$ was statistically significant(P<0.00). The ${\delta}T$ was also significant(P<0.01) and the temperature of Rt. area was higher than that of Lt. area. It is believed that DITI may be a favorable alternative to the diagnosis of Liver Qi stagnation.
김승현,안수정,조정훈,장준복,이경섭,Kim, Seung-Hyun,Ahn, Soo-Jeong,Cho, Jung-Hoon,Jang, Jun-Bock,Lee, Kyung-Sub 대한한방체열의학회 2003 대한한방체열의학회지 Vol.2 No.1
Purpose: We aim to research the difference of abdominal temperature in dysmenorrhea patients comparing with that of normal person. Metholds: We selected the 49 dismenorrhea patients as study group and 54 normal persons as control group, excluding the patients who have dermatitis, ared over 70 or under 10. and have extreme obesity. We compared the 4 points(Rt and Lt Gimun(LR14) and Guirae(ST29)) in thd abdomen of both group, check the temperature of those points with DITI(Dorex, DTI-16UTI) to compare the temperature difference with each other. For statistics, we use independent T-test, SPSS 8.0 for windows. Results: The temperature difference between Rt and Lt Gimun which are in upper abdomen shows statistically significant result in study group. Conclusion: The dysmenorrhea patients show larger temperature difference between Rt and Lt points in upper abdomen than normal persons. In lower abdomen, the temperature between control and study group shows little difference.
정신분열증환자에서 Haloperidol 투여에 따른 임상효과와 혈장 Homovanillic Acid의 농도 및 혈장 5-Hydroxyindoleacetic Acid 농도와의 관계
김승현,이민수,곽동일,Kim, Seung Hyun,Lee, Min Soo,Kwak, Dong Il 대한생물정신의학회 1995 생물정신의학 Vol.2 No.1
The Purposes of this study were to examine plasma homovanillic acid(pHVA) levels and 5-hydroxyindoleacetic acid(pHIAA) levels in schizophrenics during haloperidol treatment, and to assess the association of pHVA and pHIM levels with their psychopathology and treatment responses. Fourteen patients entered the study and pHVA, pHIAA levels were measured at baseline, first week, second week and fourth week during treatment. Also, plasma haloperidol levels were measured at first week, second week and fourth week. Psychopathology was evaluated with Brief Psychiatric Rating Scale(BPRS) at baseline, 1st week, 2nd week and 4th week. 1) There were significant differences on the duration of illness and total BPRS scores at baseline between higher pHVA group(baseline pHVA level >7.72ng/mL) and lower pHVA group(baseline pHVA level <7.72ng/mL). 2) There was no significant difference on the duration of illness between higher pHIM group(baseline pHIAA level >3.18ng/mL). and lower pHIAA group(baseline pHIAA level <3.18ng/mL). 3) The Means of pHVA levels at 1 st week and 2nd week after treatment decreased significantly in the higher pHVA group and did not change in the lower pHVA group. 4) In the higher pHIAA group, the mean of pHIAA levels at 4th week after treatment decreased significantly, but did not change in the lower pHIAA group. 5) Between the higher pHIVA group and lower pHVA group, the response rates(percentile improvement) after treatment were not different from each other, but there was significant difference on the response rate between the lower pHIAA group and higher pHIM group at 2nd week. 6) There was significant correlation between total BPRS scores and pHVA levels in the higher pHVA group during treatment. The results suggest that repeated measurement of pHVA levels and pHIAA levels following antipsychotic treatment have prognostic significance for response. Also, shcizophrenics whose have relatively nigh levels of pHVA, or relatively low levels of pHIAA before treatment will show a favorable early responses to antipsychotics.
김승현,신경호,Kim, Seung-Hyun,Shin, Kyung-Ho 대한수면의학회 2000 수면·정신생리 Vol.7 No.1
To investigate the neurobiological bases of learning and memory is one of the ambitious goals of modern neuroscience. The progress in this field of recent years has not only brought us closer to understanding the molecular mechanism underlying long-lasting changes in synaptic strength, but it has also provided further evidence that these mechanisms are required for memory formation. Since twenty years ago, several studies for the tests of the hypothesis that NMDA-dependent hippocampal long-term potentiation(LTP) underlies learning have been reported. Also, in the recent year, data from mutant mice showed that a potential role for NMDA-dependent LTP in hippocampal CA1 and spatial learning. Although the current evidence for the role of NMDA receptor in learning and memory is not still obvious, NMDA receptor seems to act as a critical switch for activation of a cascade of events that underlie synaptic plasticity.