1950년대 이용찬의 작가 의식과 형식 실험 연구

이승현(Lee, Seung-hyun) 한국어문학회 2013 語文學 Vol.0 No.121

Lee Young-chan is well known by his drama Gajok(the Family). He focused on a family and it’s difficulties. He believed that family’s difficulties could are solved by family’s affection. However, his idea of family has a huge problem. It is that his concept of family is based on the patriarchy and the anti-communism. Due to the patriarchy, women who have become others appear from his dramas, so Lee Young-chan’s idea of family can not be completed perfectly. Futhermore, his idea of family is linked with idea of nation and people. Lee Young-chan said that people work for nation not only their families. This his idea is involved in the anti-communism. In the 1950s, the anti-communism is ideology of nation in Korean. At that time, the president Lee Seung-man used the anti-communism to catch state authority. Consequently, Lee Young-chan did not have the different author consciousness from old generation authors. Therefore, his formal experiments from Gajok, Giro, and Pineun Bamedo Jaji Anneunda have limited value. His formal experiments can not express the new generation consciousness, but they can be utilized to overcome the limits of Realism’s time and space.

〈젊은 세대의 백서〉에 나타난 자본주의와 미국 문화의 영향

이승현(Lee, Seung-Hyun) 한국어문학회 2014 語文學 Vol.0 No.126

Ha Yoo-sang’s drama in 1950’s is well know that they displayed the generational conflict, but Jeolmeun sedaeui baekseo is unlike other works. Ha yoo-sang said that Jeolmeun sedaeui baekseo is human problem related to ‘the illusion’, so it should be is read in other way, not the generational conflict. After Korean war, South Korea is influenced by the Capitalism and the American Culture; English, translations, western clothes, dances and so on. These influences can be checked in Jeolmeun sedaeui baekseo with western style house and Christmas day. These western life styles are understand as the symbol of freedom. On the other hand, characters are affected by negative aspects of the capitalism, so they fell into values of mammonism. These elements are a kind of the influence of the Capitalism and the American culture at that time. Ha Yoo-sang showed negative aspects of the capitalism by defeating the negative characters, Yungisa and Hyeonsu, but Gyeonghui get parents’ permission to get married in spite of a negative character. Moveover, Ha Yoo-sang used English words in Jeolmeun sedaeui baekseo. Ha Yoo-sang knew changes and influences by the Capitalism and the American culture in late 1950’s, so he displayed these social phenomena. However he fell into the ambivalence of the Capitalism and the American culture because he had a popular tendency.

홍삼·백년초 복합물이 관절염 개선에 미치는 효과

이승현,이창현,김홍준,김영식,신민지,김지현,마상용,이세연,권진,오찬호,Lee, Seung-Hyeon,Lee, Chang-Hyun,Kim, Hong-Jun,Kim, Young-Sik,Shin, Min-Ji,Kim, Ji-Hyun,Ma, Sang-Yong,Lee, Se-Youn,Kwon, Jin,Oh, Chan-Ho 대한한의학방제학회 2021 大韓韓醫學方劑學會誌 Vol.29 No.2

Objectives : This study was conducted to evaluate the efficacy of a complex mixture of natural substances of ginseng and baeknyeoncho on the arthritic rats. Methods : In vitro experiments were conducted to ensure the stability of the complex. After setting toxicity and concentration by MTT assay, the antioxidant effect was measured through DPPH and ABTS radical scavenging activity. To confirm the anti-inflammatory effects of the complex, levels of nitric oxide (NO) and pro-inflammatory cytokines (IL-1β, TNF-α) were measured in LPS-treated macrophage cell lines (RAW264.7). We injected monosodium iodoacetate (MIA) 50 μl (60 mg/ml) into knee joints of rats to induce osteoarthritis. The rats were divided into three groups (normal (n=5), control (n=5), and OR (n=5) group). The control group consumed 2 mg/kg of physiological saline once a day for 4 weeks, and the OR group was mixed at a concentration of 416.5 mg/kg of Baengnyeoncho (O) and 208.25 mg/kg of red ginseng (R) and ingested 1 mL each 5 days a week. Results : This complex increased the DPPH and ABTS radical scavenging rate. The complex decreased NO production and pro-inflammatory cytokine production of macrophages. In the OR group, the secretion of cytokine in serum was decreased. In histopathological examination, the joint tissue of the composite showed less damage to the synovial membrane, cartilage, and fibrous tissue than the control group. Conclusions : As a result of this study, natural complexes have antioxidant, anti-inflammatory and cartilage protection effects. Therefore, we expect the complex to be effective in treating osteoarthritis.

요로감염 환아에서 방광요관 역류를 예측할 수 있는 인자에 대한 연구

이승현,노성훈,오정은,김민선,이대열,Lee, Seung-Hyun,Noh, Sung-Hoon,Oh, Jeung-Eun,Kim, Min-Sun,Lee, Dae-Yeol 대한소아신장학회 2008 Childhood kidney diseases Vol.12 No.1

목적 : 배뇨성 방광요도 조영술은 초회 열성 요로감염이 있는 환아에게서 선천성 신장 질환이나 동반된 방광요관 역류를 확인하기 위해 시행한다. 그러나 이 시술은 요로 감염에서 방광 천공까지 다양한 합병증 등이 초래될 수 있으므로 본 연구는 배뇨성 방광요도 조영술 이외에 방광요관 역류의 존재를 예측할 수 있는 인자를 알아보고자 하였다. 방법 : 1998년 5월부터 2005년 11월까지 약 7년간 전북대학교 병원 소아청소년과에 입원하여 소변 배양 검사상 확진된 요로 감염 환아를 대상으로 후향적으로 분석하였다. 각각의 환아들에게서 연령, 성별, 발열, 위장관 증상, 뇨 검사 및 뇨 배양, 말초혈액 백혈구수, ESR, CRP, BUN, 혈청 creatinine과 요로계 초음파 및 DMSA 신스캔 결과와 방관요관 역류의 정도를 표준화된 형식을 통해 기록하였다. 결과 : 총 410명의 환아 중, 방광요관 역류가 없는 그룹은 273명이었고 역류가 있는 그룹은 137명 이었다. 방광요관 역류 존재 유무에 따른 두 그룹 간에는 발열, 농뇨, 말초백혈구수, ESR, CRP의 P 값이 0.001 이하의 의미있는 차이를 나타냈다. 그러나, 방광요관 역류 정도에 따른 비교분석 결과 방광요관 역류가 낮은 군(I-II)과 높은 군(III-V) 사이에는 농뇨, 발열, 말초백혈구수, C-반응단백(CRP) 등에서 의미있는 차이를 보이지 않았다(P<0.05). 역류의 유무에 따른 영상의학적 소견의 차이를 보면, 신장 초음파는 민감도 33%, 특이도 73%를 보였으며 DMSA 신스캔은 민감도 76%, 특이도 65%를 나타내었다. 또한 역류가 심할수록 신장 초음파와 DMSA 신스캔 모두 양성률이 높았다. 결론 : 초회 요로감염 환아 중 발열, 농뇨 및 높은 적혈구 침강속도, C-반응단백를 보이는 경우와 DMSA 신스캔상 이상 소견을 보이는 경우는 방광요관 역류가 있을 가능성이 높으므로, 이 경우에는 반드시 배뇨성 방광요도 조영술을 시행하는 것이 좋을 것으로 사료된다. Purpose: The most concerning issue in children with urinary tract infection(UTI) is the probability of underlying genitourinary anomalies and vesicoureteral reflux (VUR), which is frequently associated with renal scarring and eventually end-stage renal disease. Therefore, voiding cystourethrography(VCUG) is usually recommended at the earliest convenient time for children with UTI. However, VCUG is an invasive procedure that requires catheterization and exposure to X-ray. In this study, we aimed to determine the predictability of clinical, laboratory and imaging parameters for VUR in children with UTI. Methods: Data of children with bacteriologically proven UTI who underwent VCUG were evaluated retrospectively for clinical(age, gender, fever), laboratory(leukocytosis, ESR, CRP, pyuria, blood urea nitrogen, serum creatinine) and imaging(renal ultrasound and DMSA renal scan) findings. First, children with UTI were divided into two groups according to the presence of VUR as non-VUR group and with VUR group, and clinical, laboratory variables were compared between these groups. Second, patients who had VUR were reclassified as low-grade VUR(grade I-II) group and high-grade(grade III-V) VUR group according to grading of VUR, and clinical, laboratory and imaging variables were compared between these groups. Results: Among 410 children with UTI, 137 had VUR and 78 high-grade VUR. Fever, leukocytosis, ESR, CRP, pyuria were associated with VUR. In addition, abnormal findings of ultrasonography and DMSA renal scan were closely related to VUR. However, these clinical and laboratory variable in patients with high grade VUR were not different significantly, compared to those with low-grade VUR group. Conclusion: Fever, leukocytosis, ESR, CRP seems to be potentially useful predictors of VUR in pediatric patients with UTI. In addition, renal ultrasonography and DMSA renal scan findings supported the presence of VUR. Further study of these findings could limit unnecessary VCUG in patients with UTI.

안운동 이상에서 영상진단의 유용성

이승현,허환,박상우,Seung Hyun Lee,Hwan Heo,Sang Woo Park 대한안과학회 2009 대한안과학회지 Vol.50 No.2

Purpose: To evaluate the usefulness of imaging diagnosis in patients with atypical oculomotor abnormalities and paralytic strabismus. Methods: The magnetic resonance imaging (MRI) or computed tomography (CT) of 3 patients with atypical Y pattern vertical incomitance and medial rectus (MR) paresis after MR impingement reduction and A pattern vertical incomitance were analyzed. High-resolution, surface coil MRI was used to obtain sets of contiguous, 2-mm thick quasi-coronal images in 9-cardinal gaze directions. Digital image analysis was used to evaluate the results. Results: MRI revealed lateral displacement of the superior rectus (SR) and inferior displacement of the lateral rectus (LR) during upper temporal gaze and inferior displacement of the LR during lateral gaze in patients with Y pattern vertical incomitance. In patients with MR paresis, the maximal surface area of MR cross section is in the image plane 10 mm posterior from the orbital center at primary gaze. The maximal surface area of MR cross section is in the image plane 22 mm posterior from the orbital center during medial gaze. Quasi-coronal images show that contraction tends to cause the plane of maximum cross-section to move posteriorly. Surgical treatment was avoided and observational treatment maintained. There is incyclotorsion of both extraocular muscles in patients with A pattern vertical incomitance and upslanted palpebral fissure. Conclusions: Imaging diagnosis of pulley position and rectus muscle contractility is helpful for determining accurate diagnosis and treatment methods at atypical oculomotor abnormalities and paralytic strabismus.

업무력을 2배높이는 직장인의 6가지 독서습관

이승현,Lee, Seung-Hyun 한국기술사회 2005 技術士 Vol.38 No.1

다중빔음향측심 자료를 이용한 침몰선박 정밀영상 분석 연구

이승현,서영교,서재준,Lee, Seung-Hyun,Seo, Young Kyo,Suh, Jae-Joon 해양환경안전학회 2016 海洋環境安全學會誌 Vol.22 No.7

본 연구는 다중빔 음향측심 자료를 바탕으로 침몰선박의 정확한 형상 및 해저지형에 대한 정보를 분석하였다. 다양한 영상 자료처리를 통해 현재 침몰선박의 상태를 분석하였다. 해당 자료와 과거 조사 자료의 비교를 통하여 침몰선박 상태 변화 및 주변지형의 변화를 해석하였다. 분석대상 선박 중 퍼시픽프랜드호의 경우 조류에 의한 침 퇴적으로 인해 선수-선미의 지형변화가 뚜렷하게 나타나는 특징을 알 수 있었다. 그리고 제7해성호의 경우 2011년 국립해양조사원 영상자료에서는 선수 일부가 유지된 상태였으나, 2015년 조사 영상에서는 선수 일부가 붕괴된 것을 확인할 수 있었다. 이는 오랜 기간 선박이 해저에 방치되면서 조류 및 화물의 하중 등과 지속적인 부식으로 선체가 붕괴된 것으로 추정된다. 따라서 잔존연료 유출 및 주변 해양오염이 발생할 수 있어 지속적인 모니터링이 필요할 것으로 판단된다. 침몰선박의 영상분석을 통해 침몰선박이 수심과 조류에 의한 영향을 많이 받은 지역일 경우 지질학적 특성과 퇴적물의 침 퇴적 양상에 따라 침몰선박의 구조 안전성에 상당한 영향을 줄 것으로 판단되며, 부식으로 인한 선체의 변화는 계속적으로 변화될 것으로 추정된다. 따라서 지질학적 특성을 고려한 잔존연료 유출 및 주변 환경 변화에 대하여 침몰선박의 변화에 따라 예측 대응하는 기술의 개발이 필요하다. In this study, the precise shapes of sunken ships and information on seafloor topography were analyzed using data obtained from a multi-beam echo sounder. The state of each sunken ship was analyzed by processing diverse imagery data which was compared with data obtained from past investigations to determine changes in the state and circumjacent seafloor topography. Apparent changes in the seafloor topography around one sunken ship, the "Pacific Friend", were found from stern to bow as a result of continued submarine erosion and sedimentation. In the case of sunken ship "No. 7 Haeseong", the partial collapse of the bow was revealed in the seabed images captured in 2015, though it had still been intact in images captured during the Korea Hydrographic and Oceanographic Agency's investigation in 2011. This partial collapse was presumed to have resulted from the effects of continued tidal currents, the cargo load of the ship and continued corrosion of the ship over a long time on the seabed. Continuous monitoring of residual fuel inside the ship is necessary to avoid leakage and potential marine pollution. By conducting image analysis on these sunken ships, it has been determined that the structural safety of the ships is seriously influenced by tidal currents and seafloor topography, while the hulls will be continuously changed by corrosion. As a result, it can be concluded that the development of prediction and response techniques that take into consideration residual fuel leakage and environmental changes according to the geological characteristics of sunken ships is necessary.

V/TiO₂ 촉매의 제조조건에 따른 SCR 반응활성 및 SO₂ 내구성 증진에 대한 연구

이승현,서정욱,변상근,홍성창,Lee, Seung Hyun,Seo, Jeong Uk,Byeon, Sang Geun,Hong, Sung Chang 한국청정기술학회 2016 청정기술 Vol.22 No.2

본 연구에서는, 연소로에서 발생하는 질소산화물을 제거하기 위한 V/TiO₂ 촉매의 제조조건에 따른 SCR 반응활성 및 SO₂ 내구성 증진 연구를 수행하였다. 제조된 촉매들은 XPS, Raman, H₂-TPR, SO₂-TPD를 이용하여 특성분석을 수행하였다. 촉매활성 및 SO₂ 내구성을 고려하였을 때 바나듐 함량은 2 wt%가 최적이었다. 텅스텐을 promotor로 첨가하였을 경우, 저온에서의 환원능력의 증진과 SO₂ 흡착량 감소로 인하여 우수한 반응활성과 SO₂ 내구성을 나타내었다. 또한 촉매 제조 시 바나듐용액의 pH가 낮아질수록 촉매표면에 형성되는 바나듐이 고분산되어 표면 crystalline V₂O₅ 종의 형성을 억제하였고, 이로 인해 우수한 반응활성을 나타내었다. CO에 대한 내구성도 우수하여 CO가 발생하는 연소로에서도 사용가능 함을 확인하였다. In this studies, SCR reaction activity and SO₂ durability enhancement study on manufacturing conditions of the V/TiO₂ catalyst was carried out for the removal of nitrogen oxides generated in the combustion furnace. The catalysts are characterized by XPS, Raman, H₂-TPR and SO₂-TPD. When the vanadium was contained of 2 wt%, it showed excellent SO₂ durability and catalytic activity. and When the tungsten is added as a promotor, the enhancement of reducing ability at a low temperature and reduction of SO₂ adsorption capacity improved the reaction activity and SO₂ durability. V/W/TiO₂ are prepared by the lower pH of vanadium solution, vanadium was highly dispersed on the surface and inhibited the formation of crystalline V₂O₅. in addition, it was confirmed that this catalyst can be used as excellent resistance to high concentration of CO in the combustion furnace.

방사선조사가 당뇨 백서의 악하선 선포세포에 미치는 영향

이승현,황의환,이상래,Lee Seung-Hyun,Hwang Eui-Hwan,Lee Sang-Rae 대한영상치의학회 2003 Imaging Science in Dentistry Vol.33 No.3

Purpose: To observe the histologic changes and clusterin expression in the acinar cells of the submandibular gland in streptozotocin-induced diabetic rat following irradiation. Materials and Methods: Mature Sprague-Dawley rats were divided into three groups: control, diabetic, and diabetic-irradiated groups. Diabetes mellitus was induced in the Sprague-Dawley rats by injecting streptozotocin, while the control rats were injected with citrate buffer only. After 5 days, rats in diabetic-irradiated group were irradiated with single absorbed dose of 10 Gy to the head and neck region. The rats were killed at 1, 3, 7, 14,21, and 28 days after irradiation. The specimen including the submandibular gland were sectioned and observed using histologic and immunohistochemical methods. Results : Morphologic change of acinar cells was remarkable in the diabetic group, but was not observed in the diabetic-irradiated group. Necrotic tissues were observed in the diabetic-irradiated group. Coloring of toluidine blue stain was most increased at 14 days in the diabetic group, however there were no significant change throughout the period of the experiment in the diabetic-irradiated group. Expression of clusterin was most significant at 14 days in the diabetic group, but gradually decreased with time after 7 days in the diabetic-irradiated group. Degeneration of clusterin was observed in the diabetic-irradiated group. Conclusion : This experiment suggests that the acinar cells of submandibular gland in rats are physiologically apoptosed by the induction of diabetes, but that the apoptosis is inhibited and the acinar cells necrotized after irradiation.

건성안 환자의 눈물내의 케모카인 리간드4의 농도와 눈물표면인자와의 상관관계

이승현,임성규,윤경철.Seung Hyun Lee. MD. Seoung Kyu Im. MD. Kyung Chul Yoon. MD. PhD 대한안과학회 2010 대한안과학회지 Vol.51 No.3

Purpose: To investigate the expression of CCL4/MIP-1β in tears of patients with dry eye syndrome and its correlation with the tear surface parameters. Methods: Forty patients with dry eye syndrome (seven Meibomian gland dysfunction and 33 non-Meibomian gland dysfunction patients) and 25 control subjects were recruited. The concentrations of CCL4 in tears were measured using an enzyme-linked immunosorbent assay. The correlations between CCL4 levels and tear surface parameters including tear film break-up time (BUT), basal tear secretion (BST), tear clearance test (TCR), corneal sensation, keratoepitheliopathy (KEP) and conjunctival goblet cell density (GCD) were analyzed in patients with dry eye syndrome. Results: The mean levels of MIP-1β were 4.3±5.2 pg/ml in patients with dry eye syndrome and 81.6±294.3 pg/ml in control subjects (p=0.03). The mean levels in non-Meibomian gland disease patients (90.4±313.9 pg/ml) were significantly higher than those of Meibomian gland dysfunction patients (20.3±23.2 pg/ml, p=0.02). CCL4 levels correlated significantly with BST, TCR, KEP and GCD (p<0.05). Conclusions: The level of MIP-1β is elevated in tears of patients with dry eye syndrome and correlates with disease severity and tear surface parameters. J Korean Ophthalmol Soc 2010;51(3):313-319