외과적 치료가 필요했던 심도자 합병증에 대한 임상적 고찰

이영,박경신,박진석,임승평,김응중,Lee, Young,Park, Kyung-Sin,Park, Jin-Seog,Lim. Seung-Pyung,Kim, Eung-Joong 대한흉부심장혈관외과학회 1995 Journal of Chest Surgery (J Chest Surg) Vol.28 No.6

We have experienced ten cases of emergent operation for the complications of cardiac catheterization during the period from 1985 to September 1994.Catheterization was done for the evaluation of the cardiac or vascular problem in 8 cases and 2 cases of neurosurgical problem. The extracardiac injection of contrast material have occurred in 3 cases[primum ASD,Trilogy,VSD . Six cases were unable to remove the catheter from femoral artery or vein. The catheters were knotted, coiled, impacted or broken. An embolectomy was done 40 years old man who suffered from chronic left subclavian artery obstruction a day after angiography. Open heart surgery was performed in 5 cases of cardiac perforation,impacted catheter in left inferior pulmonary vein and broken catheter of VSD. Arteriotomy was done in 4 cases to remove the knotted and coiled catheter. There was no complication or mortality for the emergent operation.

패화석이 보리생육과 토양 미생물상에 미치는 영향

이영한(Young-Han Lee),손연규(Yeon-Kyu Sonn),이성태(Seong-Tae Lee),허재영(Jae-Young Heo),김민근(Min-Keun Kim),김은석(Eun-Seok Kim),송원두(Won-Doo Song),김대호(Dae-Ho Kim),옥용식(Yong Sik Ok) 한국토양비료학회 2012 한국토양비료학회지 Vol.45 No.4

산성토양을 개량하기 위한 목적으로 패화석을 시용하여 보리의 생육, 수량과 품질 및 토양 미생물상을 조사하였다. 패화석 처리로 석회고토나 무처리에 비해 m2당 수수와 천립중이 높아져 보리의 수량은 석회소요량 처리구인 패화석 3.09 Mg ha?¹ 시용에서 5.53 Mg ha?¹로 가장 많았으며 석회고토 동량의 패화석 처리구도 5.23 Mg ha?¹로 석회고토 5.20 Mg ha?¹ 보다 증대되었다. 패화석 처리구는 석회고토처리구 보다 보리 단백질 함량은 0.5∼0.7% 낮아져 농산물의 품질향상에 미치는 영향은 석회고토보다 양호한 것으로 판단되었다. 토양 pH는 패화석과 석회고토 시용으로 무처리 보다 0.5∼0.6 정도 상승되었고 치환성 Ca 함량은 패화석 3.09 Mg ha?¹ 처리구에서 7.5 cmolc kg?¹으로 가장 높았으며 석회고토 처리구는 치환성 Mg 함량이 2.5 cmolc kg?¹으로 가장 높게 나타났다. 패화석 3.09 Mg ha?¹ 및 2.38 Mg ha?¹ 처리구는 석회고토 2.38 Mg ha?¹ 처리구에 비해 토양의 세균 밀도는 각각 60.9 및 69.7×106 CFU g?¹로서 높은 반면 방선균 밀도는 각각 32.4, 45.4×105 CFU g?¹로서 낮았다. Oyster shell has a high content of CaCO3 to be used as a acidic soil amendment. To enhance productivity of barley and soil microbe in an upland soil, oyster shell and calcium-magnesium carbonate were selected as a soil amendments in this study. A field experiment was treated no treatment (hereafter, control), oyster shell lime 3.09 Mg ha?¹ and 2.38 Mg ha?¹, and calcium-magnesium carbonate 2.38 Mg ha?¹ as amount of lime requirement in silt loam soil. The yield of barley from the oyster shell lime treatment was the highest. The protein content of barley was the highest of 11.1% in the calcium-magnesium carbonate, followed by 10.7% for the control, 10.6% for the oyster shell lime 3.09 Mg ha?¹, and 10.4% for the oyster shell lime 2.38 Mg ha?¹. Soil pH value was higher than that of control in harvesting stage. In addition, the population of soil bacteria was highest in oyster shell lime 2.38 Mg ha?¹, actinomycetes was highest in calcium-magnesium 2.38 Mg ha?¹. We concluded that the oyster shell lime can be effective to restore soil nutrient and microbe balance in an upland soil.

경남지역 밭 토양 화학성분이 미생물 생태에 미치는 영향

이영한(Young-Han Lee),하상건(Sang-Keun Ha) 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.2

경남지역 밭 토양 25개소를 대상으로 2009년에 토양 화학성분과 미생물 다양성을 검토하고 토성, 지형 및 작물별 주요 변동요인을 주성분분석으로 해석하였다. 토양 유효인산 및 치환성 칼륨과 칼슘 함량은 적정수준 보다 높았으며 대부분의 토양 화학성분이 최소값과 최대값의 차이가 크게 나타났다. 지형적으로 산록경사지는 토양 유기물 함량과 치환성 칼륨 함량이 유의적으로 높았고 (p<0.05) 토성별 유기물 함량은 양토에서 높은 반면에 염류농도와 유효인산 함량은 사양토에서 높았으며 고구마 재배지의 치환성 칼슘함량은 감자 재배지에 비해 유의적으로 높았다. 지형별 밭 토양의 곰팡이 개체수는 곡간 및 선상지가 하성평탄지 보다 유의적으로 많았고 토양 미생물체량과 탈수소효소 활성은 산록경사지가 다른 지형에 비해 유의적으로 높았다(p<005). 토성에 따른 토양의 coliform 그룹은 미사질양토가 사양토와 양토에 비해 유의적으로 높았고 미생물체량은 양토가 미사질양토 보다 유의적으로 높았으나 (p<005) 작물별 미생물상과 토양 미생물체량 및 탈수소효소 활성은 유의적인 차이가 없었다. 주성분 분석결과 제1주성분이 32.2%, 제2주성분이 24.2%로서 전체 56.4%의 자료를 설명할 수 있었으며 제1주성분은 토양의 유효인산 함량이 가장 크게 기여하였다. 토양 바실러스균과 곰팡이균은 토양의 유기물 함량과 정의 상관관계를 보였으며 토양 pH는 형광성 슈도모나스균과 정의 상관관계를 나타냈다. Soil management for environment-friendly agriculture depends on the effects of soil microbial activities and soil fertility. To improve soil health for the upland crops, this study evaluated a relationship between soil chemical properties and soil microbial diversities at 25 sites in upland soils in Gyeongnam Province. The average nutrients in the upland soils were 1.7 times for available phosphorous, 1.4 times for exchangeable potassium and 1.5 times for exchangeable calcium higher compared to recommend concentrations in the upland soils. We found a significant positive correlation between the soil organic matter and the soil microbial biomass C (p<0.01). Contents of organic matter and dehydrogenase in the inclined piedmont soils were significantly higher than those in the other topographical soils (p<0.05). In addition, concentrations of organic matter and microbial biomass C in the loam soils were significantly higher than in the silt loam soils (p<0.05). In principal component analyses of chemical properties and microbial populations in the upland soils, our findings suggested that available phosphorous should be considered as potential factor responsible for the clear upland soils differentiation. The soil organic matter was positive correlation with Bacillus sp. and fungi, whereas soil pH was also positive correlation with Pseudomonas sp. in upland soils.

코어-쉘 구조를 갖는 BaTiO₃@Fe 나노섬유의 합성 및 전자파 흡수 특성

이영인,장대환,성기훈,이규만,좌용호,Lee, Young-In,Jang, Dae-Hwan,Sung, Ki-Hoon,Lee, Kyuman,Choa, Yong-Ho 한국분말야금학회 2016 한국분말재료학회지 (KPMI) Vol.23 No.1

$BaTiO_3$-coated Fe nanofibers are synthesized via a three-step process. ${\alpha}-Fe_2O_3$ nanofibers with an average diameter of approximately 200 nm are first prepared using an electrospinning process followed by a calcination step. The $BaTiO_3$ coating layer on the nanofiber is formed by a sol-gel process, and a thermal reduction process is then applied to the core-shell nanofiber to selectively reduce the ${\alpha}-Fe_2O_3$ to Fe. The thickness of the $BaTiO_3$ shell is controlled by varying the reaction time. To evaluate the electromagnetic (EM) wave-absorbing abilities of the $BaTiO_3@Fe$ nanofiber, epoxy-based composites containing the nanofibers are fabricated. The composites show excellent EM wave absorption properties where the power loss increases to the high frequency region without any degradation. Our results demonstrate that the $BaTiO_3@Fe$ nanofibers obtained in this work are attractive candidates for electromagnetic wave absorption applications.

기계화학공정에 의한 (Pb, La)TiO₃ 나노 분말의 합성 및 소결 특성 연구

이영인,구용성,이종식,좌용호,Lee, Young-In,Goo, Yong-Sung,Lee, Jong-Sik,Choa, Yong-Ho 한국분말야금학회 2010 한국분말재료학회지 (KPMI) Vol.17 No.2

In this study, we successfully synthesized a nano-sized lanthanum-modified lead-titanate (PLT) powder with a perovskite structure using a high-energy mechanochemical process (MCP). In addition, the sintering behavior of synthesized PLT nanopowder was investigated and the sintering temperature that can make the full dense PLT specimen decreased to below $1050^{\circ}C$ by using $Bi_2O_3$ powder as sintering agent. The pure PLT phase of perovskite structure was formed after MCP was conducted for 4 h and the average size of the particles was approximately 20 nm. After sintered at 1050 and $1150^{\circ}C$, the relative density of PLT was about 93.84 and 95.78%, respectively. The density of PLT increased with adding $Bi_2O_3$ and the specimen with the relative densitiy over 96% were fabricated below $1050^{\circ}C$ when 2 wt% of $Bi_2O_3$ was added.

DN 396,000 극저온 펌프 볼 베어링의 이론 및 실험적 방법을 이용한 베어링 마찰 토크 분석

이영도(Yeongdo Lee),곽원일(Wonil Kwak),이용복(Yongbok Lee) 한국유체기계학회 2021 한국유체기계학회 학술대회 논문집 Vol.2021 No.7

경남지역 단감 재배 토양의 화학성 변화 평가

이영한(Young-Han Lee),최성태(Seong-Tae Choi),이성태(Seong-Tae Lee),홍광표(Kang-Pyo Hong),송원두(Won-Doo Song),이진호(Jin-Ho Lee),조주식(Ju-Sik Cho) 한국토양비료학회 2010 한국토양비료학회지 Vol.43 No.5

경남지역 단감 재배 토양의 양분관리를 위한 기초 자료를 제공하고자 창원 7, 마산 1, 진주 6, 사천 3, 김해 5,밀양 2, 함안 2, 창녕 1, 하동 3, 산청 1 등 31개 지점을 선정하였고 4월부터 10월까지 2개월 단위로 4회 조사하였다. 표토와 심토의 pH 값은 4월에 비해6월 이후 유의적인 증가를 나타냈으며 적정수준인 6.0-6.5 보다 낮았다. 반면, 암모니아태 질소 함량과 질산태 질소 함량은 4월 보다 6월 이후 유의적인 감소를 나타냈다. 표토와 심토의 pH는 적정수준인 6.0-6.5 보다 부족한 비율이 각각 69.4%와 84.7%로 매우 높게 나타나 경남지역 단감 재배 토양의 pH 교정을 위해 토양개량제 공급이 시급한 것으로 판단되었다. 토양 유기물 함량도 적정수준인 25-35 g kg<SUP>-1</SUP> 분포비율은 표토 13.7%, 심토 4.0%로 매우 낮았으며 부족한 비율이 각각 63.7% 및 84.7%로 매우 높아 적절한 유기물 공급이 필수적인 것으로 나타났다. 유효인산 함량은 적정수준인 200-300 mg kg<SUP>-1</SUP>보다 초과된 비율은 표토 70.2%, 심토 46.8% 였으며 토양 유기물 함량 (r=0.339, p≤0.001)과 고도의 유의적인 정의상관을 보여 가축분 퇴비 과다 시용에 대한 주의가 필요한 것으로 나타났다. Field monitoring was performed to evaluate the soil chemical properties of 31 sweet persimmon orchard soil samples every two months from April to October in 2008 at Gyeongnam Province. Soil chemical properties such as pH, organic matter, available phosphate, exchangeable potassium, exchangeable calcium, exchangeable magnesium, exchangeable sodium, ammonium nitrogen, and nitrate nitrogen were analyzed. The soil chemical properties of both top soil, and subsoil showed that soil pH was significantly increased whereas ammonium nitrogen, and nitrate nitrogen were significantly decreased. The insufficient levels of nutrients in top soil, and subsoil were higher in 69.4%, and 84.7% for pH, 63.7%, and 84.7% for organic matter compared to optimum range. Meanwhile, the excessive levels of available phosphate showed 70.2% in top soil, and 46.8% in subsoil compared to optimum range. The experimental results showed that the optimum fertilization based on soil testing was the most important thing in soil nutrients management for sweet persimmon.

유저 라벨링을 통한 정치 기사 댓글 정파성 분류기 구축

이영인(Youngin Lee),한지영(Jiyoung Han),차미영(Meeyoung Cha) 한국정보과학회 2020 한국정보과학회 학술발표논문집 Vol.2020 No.7

온열 발반사 요법이 비만여성의 우울지수 및 혈청 성분에 미치는 영향

이영이(Young-Yi Lee),이영순(Young-Son Lee),조성준(Sung-Jun Cho),이재숙(Jae-Sug Lee) 한국인체미용예술학회 2013 한국인체미용예술학회지 Vol.14 No.3

This study investigated obese women's general environment, mental depression changes by thermo foot-reflexology (50 minutes/one time and three times/week during 6 weeks) through a questionnaire survey of 33 obese women possessing over 23 body mass index (BMI) in Iksan, they divided into two groups and checked their triglyceride (TG), immunoglobulin G (IgG) and stress changes of blood by thermo foot-reflexology (TFR). As the results, depression changes of experimental group presented meaningful decline of about 7 value after TFR. Cortisol concentration of blood and stress index showed a decline in experimental group. TG and IgG concentration of experimental group showed meaning decrease by TFR. Therefore, we suggest that TFR did decline obese women's mental depression, stress and TG concentration without fall of immune system.

한.중.일 도성계획에서 "주례.고공기"의 해석과 적용에 관한 연구

이영,한경호,Lee, Young,Han, Kyoung-Ho 대한건축학회 2011 대한건축학회논문집 Vol.27 No.3

The capital planning cloud be a political diagram in the pre-industrial countries of North-east Asia. In order to take a role as the capital, a planning was required to represent a higher level of symbolism than the other cities. Because of all that, Zhouli Kaogongji could embodied. And this is the general assessment of the Zhouli Kaogongji. But in reality, North-east Asian capital planning has not appeared as same urban planning as the Zhouli Kaogongji's. Thus a historical fact, the simple formula, <City planing=Zhouli Kaogongji> can not fully describe neither the City planing of East-Asia, nor Zhouli Kaogongji. We need to understand the Zhouli Kaogongji as the text not the image, because the contexts of the urban planning in Zhouli Kaogongji have been described simply. City planning has changed, depending on how the interpretation the Zhouli Kaogongji. It can be described <City planing=Zhouli $Kaogongji+{\alpha}$>, and depending on the interpretation, the city could be classified a kind of regular form and irregular form. All Capitals from the history of East-asia, should be understood in a way of similarity to Zhouli Kaogongji, not the differences. The important thing is the cultural backgrounds of the planners were effected very importantly. The Capital planning could consider as the result, that is complexed with the site analysis, the ideal images of the city and Zhouli Kaogongji.