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이현욱,심규철,임영득,정구흥,장남기 韓國生物敎育學會 1997 생물교육 Vol.25 No.2
The purpose of this study is to establish the strategies for participating in International Environmental Project Olympiad(INEPO). The aims of INEPO are to improve the environmental conscious of the students, to get the students cope with the environmental problem with the permanent and positive attitudes. In the projects the evaluation will be made according to scientific and economic existence, practicability and productivity etc. For the participation of our country in INEPO, the students who will be participated in INEPO must be selected by the Korean Environmental Project Olympiad(KEPO). For this goal, the Commitee of Korean Environmental Project Olympiad must be organized. Educational effects through holding of KEPO and participating in INEPO are to increase the capability of environmental problem of our country through international exchange, to find talented students in this area. to activate environment education and to contribute to national economy and environment conservation by practicing the products.
이현욱 한국도시지리학회 2019 한국도시지리학회지 Vol.22 No.3
This study investigated the change of the structure in residential regions in Gwangju using factor analysis and cluster analysis. In general, the larger city shows more socio-economic factors for the most dominant factor. However, this study found that the main factor explaining the residential differentiation in Gwangju was a family status factor associated with the life cycle. It is due to the low economical power of the city by the lack of dynamics in the industrial infrastructure and a lower growth rate. The study found a concentric pattern of the family factor, a sectoral pattern of a socio-economic factor, and a multiple nuclei pattern created by foreign labors. This kind of generalization can be seen in any cities which have reached a certain status in the level, size and economical power, in spite of any cultural differences in any countries. The most dominant factor which influenced on the characteristics and the changes of the residential structure is the residential development policy. The main factors determining homogeneous residential regions in Gwang-ju were the types of housing and life cycle, especially the diffusion of preferences to apartments rather than socio-economic factors. 본 연구는 요인분석과 군집분석을 이용하여 광주의 거주지역구조의 변화를 밝혀보고자 하였다. 2005년, 2015년 두 연도의 거주지역분화를 주도한 요인의 구성은 무엇이며 어떻게 변화했는지, 그 요인구성의 결합으로 본거주지역구조는 어떤 모습이며 어떻게 변화했는지를 구명하고자 하였다. 대도시화될수록 제1요인에 사회·경제적지위가 추출되는데 광주는 거주지분화를 주도한 주요인이 생애주기와 관련한 가족적 지위가 크게 작동하고 있음을확인하였다. 이는 산업기반의 역동성이 부족하고 성장속도가 느린 광주의 경제력에 기인한다고 판단된다. 가족적지위는 동심원패턴을, 사회·경제적 지위는 선형패턴, 제조업과 외국인근로자는 국지적 패턴을 보였다. 광주거주지역구조의 특성 및 변화에 주된 영향을 미친 요인으로는 인구증가의 속도와 정책적 택지개발이라 할 수 있다. 군집분석결과, 광주의 등질거주지역은 양년도 모두 7개의 군집으로 구분할 수 있었다. 신·구도심지역과 외연부의 농촌지역, 신흥택지개발지역, 공업단지지역이 양년도 공통으로 나타났다. 택지개발 후 시간이 경과함에 따라 2005년의신흥택지개발지역은 2015년 안정된 거주지역으로 변모하고, 구도심의 일부는 도심재생사업과 관련되어 신흥주거지로 떠올랐으며 미혼의 청년층 거주가 늘어나는 현상을 보였다. 등질거주지역을 결정하는 주요 요소는 사회·경제적인 요인보다 주택유형과 생애주기였으며, 대규모 택지개발에 의한 아파트문화의 확산이 주효하였다.
Porcelain Heart: Rapid Progression of Cardiac Calcification in a Patient with Hemodialysis
이현욱,윤호중,심병주,이승재,박미연,정진욱,구관민,전희경,이지은,권병진 한국심초음파학회 2012 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.20 No.4
Cardiac calcification usually occurs in patients with end-stage renal disease. However, rapid progression of cardiac calcification is rarely associated with secondary hyperparathyroidism of end-stage renal disease. We report a patient with end-stage renal disease who showed moderate left ventricular hypertrophy at the first echocardiography, and showed severe myocardial calcification and severe mitral valve stenosis 4 years later. We suspected a rapid progression ‘porcelain heart’ cardiomyopathy secondary to hyperparathyroidism of end-stage renal disease. The patient underwent parathyroidectomy, and considered mitral valve replacement.
Association between Metabolic Syndrome and Microalbuminuria in Korean Adults
이현욱,Hyun-Ju Bak,Jin-Young Shin,송윤미 대한가정의학회 2015 Korean Journal of Family Medicine Vol.36 No.2
Ba ckground: We conducted a population-based cross-sectional study of Korean adults to evaluate theassociation between metabolic syndrome and microalbuminuria as a marker for early-stage chronickidney disease. Me thods: A total of 8,497 adults (3,625 men and 4,872 women) who participated in the Korea NationalHealth and Nutrition Examination Survey between 2011 and 2012 were included. Metabolicsyndrome was defined according to recommendation from a joint interim statement of internationalorganizations published in 2009. Microalbuminuria was defined as a urinary albumin-to-creatinineratio of 30 to 300 mg/g. The association between metabolic syndrome and microalbuminuriawas evaluated using logistic regression analysis with adjustment for covariates while consideringsampling weights and the complex survey design. Re sults: The prevalence of microalbuminuriain subjects with metabolic syndrome was 11% for menand 14.4% for women, whereas the prevalence in subjects without metabolic syndrome was 3.1% formen and 6.7% for women. Metabolic syndrome was significantly associated with an increased risk ofmicroalbuminuriain both women (odds ratio, 2.79; 95% confidence interval, 2.01 to 3.88) and men (oddsratio, 3.00; 95% confidence interval, 2.11 to 4.27). All components of the metabolic syndrome wereassociated with a significantly increased risk of microalbuminuria with the strongest association for highblood pressure. The risk of microalbuminuria increased in a dose-dependent manner (P-value for trend <0.001) with the number of metabolic syndrome components observed for both sexes. Co nclusion: These findings suggest that metabolic syndrome is a risk factor for chronic kidney diseasefrom an early stage.
Pseudomonas sp. 미생물에 의한 염료 및 염색폐수 처리
이현욱,임동준 한국공업화학회 2001 한국공업화학회 연구논문 초록집 Vol.2001 No.-
염색가공폐수의 색도와 오염원(COD, BOD 등) 제거를 위해 염색가공폐수의 특성을 조사하고 그 특성에 잘 적응할 수 있는 미생물을 개발하였다. 개발한 미생물은 넓은 온도범위와 알칼리성 pH 영역에서 잘 성장하였다. 개발한 미생물을 회분식으로 배양하면서 염료제거효율을 조사한 결과 3 종류의 분산염료를 60% ~80% 제거하였으며, 3 종류의 수용성 염료를 90% 이상 제거하였다. 개발한 미생물을 생물반응기에 배양한 후 염색가공폐수를 회분식과 연속식으로 처리한 결과 염색가공폐수가 가진 열악한 환경조건에서도 잘 성장하였으며, 각종 오염원에 대해 우수한 제거능을 보여주었다. 염색공단 종합 폐수처리장에 유입되는 알칼리성 종합염색가공폐수를 회분식으로 84시간 처리하였을 때 COD<sub>Mn</sub>은 86.0%, 색도는 94.2%, BOD는 96.8% 제거하였고, 연속식으로 처리한 결과 COD<sub>Mn</sub> 용적 부하 0.1 ~ 2.9 COD<sub>Mn</sub>-Kg/m<sup>3</sup>ㆍday 범위에서 COD<sub>Mn</sub> 제거효율은 70.4 ~ 87.2% 범위였고, BOD<sub>5</sub> 용적부하 0.06 ~ 2.23 BOD<sub>5</sub>-Kg/m<sup>3</sup>ㆍday 범위에서 BOD<sub>5</sub>의 제거효율은 83.4. ~ 92.1% 범위였다. 또 유입수의 색도는 1372 ~ 1842 (ADMI unit)범위였는데 처리한 유출수의 색도는 329 ~ 648 (ADMI unit) 범위에서 나타났다.