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      • KCI등재

        詩ㆍ文에 나타난 李萬敷의 歷史認識

        이정규(Jeong-kyu Lee) 어문연구학회 2007 어문연구 Vol.54 No.-

          This thesis is aimed at examining the ancient history of our country, which Siksan Man-boo Lee had cognizance of. Prior to examining Siksan"s recognition of history, the researcher first paid attention to the consciousness of "making things valuable" which is thought to have affected the foundation for recognition of history. On the assumption that the real meaning of "making things valuable" may differ case by case, the researcher tried to make it clear that, overriding the assertion that Chosen succeeded China, Siksan"s consciousness of "making things valuable" expressed the culture of Chosen"s superiority, rather than none inferiority, to that of China. And, the researcher clarified that this point laid the foundation for Siksan"s having recognition of independent history. The peculiarity of the culture of home country is emphasized and the superiority of our culture is asserted everywhere in the writings scattered in a collection of Siksan"s works, And this confirmed that Chinese ethnic group and barbarians of the circumference are not distinguished by the race or location of a country, but by the culture of a country.<BR>  Subsequently, the researcher examined the recognition of history of our country in ancient times descending from Tangun time, by noting Siksan"s independent national consciousness that Chosen is an independent country as he deviates from the traditional viewpoint of Chinese ethnic group and barbarians of the circumference. He emphasized the existence of Tangun Chosen, extended the upper limit of our history by valuing highly the fact that Chosen was enlightened by Gija"s moving east, and noticed that thereby the pride of national culture was distinguished. But, he removed Wiman Chosen from our history, and did not considered our history discontinued by the outside power by determining the location of Hansagun to be above the Han River. Moreover, he showed dual recognition of history by establishing both the historical current of Tangun-Buyeo-Kokuryeo-Baekje and the other historical current of Tangun-Kija-Mahan.<BR>  Siksan attempted historical investigation of geography several times based upon what he saw and heard from his own travels, and went on to form his own historical viewpoint based upon the knowledge of ancient history he acquired from a variety of history books.

      • KCI우수등재

        교각에 의한 하상세굴에 관한 실험적 연구

        이정규,정동원,이창해,육운수,Lee, Jong Kyu,Jeong, Dong Won,Lee, Chang Hae,Yook, Woon Soo 대한토목학회 1994 대한토목학회논문집 Vol.14 No.6

        The results of laboratory experiments on the clear-water scour of cohesionless bed sediment for three types of pier shape were presented. According to the experimental data, the local scouring around the pier was initiated at $V/V_c=0.4{\sim}0.5$ and $Fr_p{\fallingdotseq}0.2$, and the relative local scour depths linearly increased with respect to the velocity ratio and the pier Froude number. The relative scour depth had the linear relationship with ${\tau}_r$ for ${\tau}_r$ < $10^{-4}$, but it tends to become constant for ${\tau}_r$ > $10^{-4}$, irrespective of ${\tau}_r$. And also the relative scour depths showed the close relationship with both the geometric standard deviation and the pier shape. 본 연구에서는 3가지 교각형상에 대하여 국부적 정지상세굴에 대한 실험결과를 분석하였다. 실험결과에 의하면 교각의 세굴은 $V/V_c=0.4{\sim}0.5$, $Fr_p{\fallingdotseq}0.2$일 때 시작되었고 상대세굴심은 유속비와 교각푸르드수와의 관계에서 선형적으로 증가하였다. 또한 상대세굴심은 ${\tau}_r$ < $10^{-4}$일 때는 선형적으로 증가하지만 ${\tau}_r$ > $10^{-4}$이 되면 일정해지는 경향을 가지며 모래의 기하표준편차(${\sigma}_g$)와 교각형상과도 깊은 관계가 있었다.

      • KCI등재

        항녹내장 약제가 배양된 사람 결막상피세포에 미치는 영향

        이정규,류양환,Jeong Kyu Lee,Yang Hwan Ryu 대한안과학회 2006 대한안과학회지 Vol.47 No.11

        Purpose: To investigate the toxicity of a short-term application of timolol maleate, dorzolamide, and benzalkonium chloride (BAC) on human conjunctival epithelial cells in vitro. Methods: Chang‘s conjunctival epithelial cell line was treated for 5 min, 15 min, 30 min, and 60 min with various concentrations of timolol, dorzloamide, or BAC, and then examined 4 hrs or 24 hrs later. Cell viabilities were assessed by MTT assay. The expressions of various cytokines by timolol maleate, dorzolamide, and BAC treatment in human conjunctival epithelial cells were evaluated using ELISPOT. Results: BAC significantly decreased survival of conjunctival epithelial cells in a dose and time dependent manner compared with timolol and dorzolamide. Inflammatory cytokines, IL-6 and IL-8, were highly expressed in conjunctival epithelial cells treated with timolol, dorzolamide, and BAC. Conclusions: The present study suggests that increased expression of inflammatory markers, IL-6 and IL-8 might explain the ocular surface disorder in patients receiving antiglaucoma medication.

      • 제4새 성기형으로 추정되는 낭종 1례

        이정규,정승원,백승국,정광윤,Lee Jung Kyu,Jung Seung Won,Baek Seung Kuk,Jung Kwang Yoon 대한기관식도과학회 2004 大韓氣管食道科學會誌 Vol.10 No.1

        The fourth branchial clef cyst is very rare entity ana only 35 cases have been reported worldwide. There have been some controversial attempts to prove its anatomical route through embryological background. However some reports even suggested that it might be impossible to prove its entity anatomically Recently, reports are coming out on the diagnostic approaches using anatomical pathway. We experienced in 45 years old woman, one case of lateral cystic neck mass which were anatomically presumed to be fourth brachial cleft cyst.

      • KCI등재

        인공 간석지 창출에 있어서 토양조성에 관한 연구

        이정규,서희동,Lee, Jeoung-Gyu,Suh, Hea-Dong 유기성자원학회 2000 유기물자원화 Vol.8 No.2

        자연간석지 토양을 인공간석지에 인공간석지 토양을 자연간석지에 이식하고, 이식토양의 물리화학적 및 생물학적 특성의 변화를 추적하였다. 또한 실트함량과 유기물함량이 미생물현존량에 미치는 영향에 관해서 실내실험을 통하여 검토하였다. 자연간석지 토양을 인공간석지에 인공간석지 토양을 자연간석지에 이식한 결과, 실트함량, 유기물함량, 미생물현존량 및 토양중의 산화환원전위층은 시간의 경과와 함께 이식한 간석지의 토양구조와 동일하게 변이해 가는 것을 알았다. 또한 이식 토양중의 실트함량, 미생물현존량 및 유기물함량과는 높은 상관관계를 나타내었다. 실트함량 및 유기물함량의 증감과 함께 미생물현존량이 비례해서 증감하는 것을 알았다. 또한 실내실험 결과에서도 실트함량이나 유기물함량의 증가와 함께 미생물현존량이 증가하였다. 또한 그 원인은 실트함량이 증가함에 따른 결과라는 것을 알 수 있었다. The purpose of this study was to identify the controlling factors to construct tidal flat ecosystems having similar characteristics as natural ones. We transplanted the soil in a constructed tidal flat to a natural one and vice versa. Parameters monitored after these transplantations were silt content, organic matter, bacterial population and oxidation-reduction potential. Moreover, the relationship among silt content, organic matter and bacterial population was investigated by laboratory column experiment. The silt content, organic matter, bacterial population and vortical profile of oxidation-reduction potential in the soil transplanted from the constructed tidal flat to the natural one changed to similar values to those In the natural one. On the contrary, all the parameters for the soil transplanted from the natural tidal flat to the constructed one changed to similar values as those in the constructed one. The silt contents in these two transplanted soils were in proportion to the organic carbon contents and bacterial population. Similarly, the bacterial population in laboratory column experiment increased with the increase in silt and organic matter contents. It seemed to be important to select a place to enhance accumulative of silt and/or to maintain the silt content by hydrodynamic control of seawater in order to construct a tidal flat having similar characteristics as natural one.

      • KCI등재

        홍수예보를 위한 통합저류함수모형의 퍼지제어 (I) - 이론 및 모형의 수립 -

        이정규,김한섭,Lee, Jeong-Gyu,Kim, Han-Seop 한국수자원학회 2000 한국수자원학회논문집 Vol.33 No.6

        본 논문에서는 홍수유출의 해석·예측을 위한 홍수추적 모형으로서 현재 국내에서 널리 이용되고 있는 저류함수모형을 개선하였다. 유출 해석의 정확성에 가장 큰 영향을 미치는 요인 중의 하나인 매개변수 산정에 최적화기법을 도입하여 기존의 경험식 등에 의한 매개변수 결정의 비객관성을 개선하였으며, 결정된 매개변수들을 시변성으로 취급하고 이의 실시간 자동보정에 퍼지제어를 사용하여 시간에 따른 유역의 변동 특성에 적절히 대응 할 수 있도록 하였다. 또한 홍수유출 해석시 가장 까다로운 문제점 중의 하나인 잔유역 유입량의 처리를 위하여 유역모형과 하도모형을 하나의 단일모형으로 하는 통합저류함수모형을 제안하였다. This paper presents the integrated storage function model (ISFM) to improve the accuracy of the storage function model (SFM) which is widely employed for flood runoff analysis and its forecasting in Korea. In order to achieve this objective, the optimization method is applied for estimation of parameters of the model which dominate the accuracy of the analysis, which is usually taken by empirical formulae, and they are treated as time dependent variables. The fuzzy control technique is used to detennine the time variant parameters. In addition, the ISFM can be applied to the combined routing of the watershed and the channel with a residual watershed.ershed.

      • 기획연재 - 미국 고등교육의 세계화(2)

        이정규,Lee, Jeong-Gyu 한국대학교육협의회 2009 大學敎育 Vol.160 No.-

        세계화는 정치, 경제, 사회, 문화 전반에서 중요한 시대적 흐름이 된 지 오래이다. 특히 고등교육 영역에서의 세계화는 국가의 경제발전과 과학기술발달 그리고 고급 인력자원 양산을 위한 핵심 사안이다. 세계화의 선도 국가인 미국이 교육 영역의 세계화 진행과정에서 고등교육을 어떻게 국제화하였으며, 어떠한 고등교육 정책과 전략으로 세계화를 추진하였는가를 고찰해 보는 것은 우리나라 고등교육 세계화 정책에 유용한 시사점을 제시해 줄 수 있다.

      • KCI우수등재

        한우에 있어 6개월령 및 12개월령 체척측정치의 유전력과 유전상관

        이정규,박영일,신언익 ( J . G . Lee,Y . I . Park,O . I . Shin ) 한국축산학회 1984 한국축산학회지 Vol.26 No.5

        The object of this study was to estimate the heritabilities, phenotypic and genetic correlations among certain body measurements in Korean Native Cattle. The experimental animals for this study were 248 heads of Korean Native Cattle from 49 sires born from 1971 to 1982 at the Alpine Experiment Station in Pyung-Chang, Korea. The traits included in this study were withers height, chest width, chest girth, body length and thud width at 6 month and 12 month of age, The results obtained are summarized as follows; 1. The heritability estimates obtained in this study were 0.19 and 0.21 for withers height at 6 and 12 month, 0.15 and 0.45 for chest width at 6 and 12 month, 0.27 and 0.61 for chest girth at 6 and 12 month, 0.14 and 0.50 for body length at 6 and 12 month, 0.27 and 0.67 for thud width at 6 and 12 month. 2. The ranges of genetic, environmental and phenotypic correlations among body measurements at 6 month of age were 0.31-0.98, 0.33-0.65 and 0.39-0.64, respectively. The ranges of correlations among body measurements at 12 month of age were 0.62-1.09, 0.52-0.45 and 0.32-0.54, respectively. 3. The heritability estimates for 6-month body measurements were lower than for 12-month body measurements. The genetic correlations among body measurements at 6 or 12 month of age were high and positive, while the genetic correlations between body measurements at 6 and 12 month of age have shown much variation depending on the combinations of the traits.

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