Inhibition of Corticosterone-induced Muscle Atrophy and Reduction in Muscle Protein Synthesis by the Anabolic Steroid Nandrolone Phenylpropionate in Female Rats

Choo,Jong Jae (주종재) 韓國營養學會 1996 Journal of Nutrition and Health Vol.29 No.8

Effects of the Anabolic Steroid, Nandrolone Phenylpropionate, on Growth and Muscle Protein Metabolism in ACTH-treated Rats

Choo,Jong Jae (주종재) 韓國營養學會 1996 Journal of Nutrition and Health Vol.29 No.8

하상경사가 변화는 실험실 데이터를 이용한 Chiu의 유속공식과 Manning 의 유속공식과의 비교분석

추태호(Choo, Tai-Ho),옥치율(Ok, Chi-Youl),이승관(Lee, Seoung-Kwan),제성진(Je, Sung-Jin) 한국산학기술학회 2007 한국산학기술학회 학술대회 Vol.- No.-

현재까지 수리학 분야에서 가장 많이 회자되고 인용된 공식이 있다면 아마도 1890년에 발표한 Manning의 유속 공식이라고 해도 과언은 아닐 것이다. 그만큼 그 쓰임새가 많았을 뿐만 아니라 사용의 편리성과 정확도에서도 매우 우수하였기 때문일 것이다. 그러나, 아무리 우수한 공식이라도 약점이 있듯이, Manning의 유속공식 역시 조도계수n을 추정하는데 많은 어려움이 있는 것도 주지의 사실이다. 이러한 어려움을 극복하기 위하여, 본 연구에서는 확률통계에서 사용되는 엔트로피 개념을 이용한 3차원 유속분포식인 Chiu의 유속공식을 사용하였다. 그러나 지금까지 실증적으로 Chiu의 유속공식과 Manning의 유속공식을 비교분석하였던 논문은 Chiu와 Choo의 논문에서 일부 언급된 것 외 논문에서는 찾아볼 수 없는 것이 현실이다. 따라서 본 연구에서는 하상경사를 임의로 변경 가능한 실험수로를 선택하여 정밀법에 의한 유속측정을 우선 실시하였다. 같은 지점의 같은 단면에서 하상경사(Ө)가 0.000935부터 0.025794까지 28번의 경사변화를 주고 각 경사마다 유량을 측정하여 28개의 유량측정 데이터를, Chiu의 유속공식과 Manning의 유속공식에 각각 적용하여, Chiu의 M과 Manning의 n사이의 관계뿐만 아니라, 하상경사변화에 따른 관련인자들을 함께 분석하였으며, 실측된 평균유속과도 함께 분석하였다.

Relevance of interleukin-10RB to chronic hepatitis B virus infection and biological activities of interferon-貫 and interleukin-22

Cho, O.,Cheong, J. Y.,Jun, K. J.,Kim, S. S.,Chwae, Y. J.,Kim, K.,Park, S.,Cho, S. W. Springer Science + Business Media 2013 Hepatology international Vol.7 No.1

영구치 치수 기질세포를 이용한 연골 분화 및 분화 시기에 따른 형태학적 변화

정주령,김하나,박열,김민정,오영주,신수정,최윤정,김경호 大韓齒科保存學會 2012 Restorative Dentistry & Endodontics Vol.37 No.1

Objectives: The aim was to confirm the stem cell-like properties of the dental pulp stromal cells and to evaluate the morphologic changes during in vitro chondrogenesis. Materials and Methods: Stromal cells were outgrown from the dental pulp tissue of the premolars. Surface markers were investigated and cell proliferation rate was compared to other mesenchymal stem cells. Multipotency of the pulp cells was confirmed by inducing osteogenesis, adipogenesis and chondrogenesis. The morphologic changes in the chondrogenic pellet during the 21 day of induction were evaluated under light microscope and transmission electron microscope. TUNEL assay was used to evaluate apoptosis within the chondrogenic pellets. Results: Pulp cells were CD90, 105 positive and CD31, 34 negative. They showed similar proliferation rate to other stem cells. Pulp cells differentiated to osteogenic, adipogenic and chondrogenic tissues. During chondrogenesis, 3-dimensional pellet was created with multi-layers, hypertrophic chondrocyte-like cells and cartilage-like extracellular matrix. However, cell morphology became irregular and apoptotic cells were increased after 7 day of chondrogenic induction. Conclusions: Pulp cells indicated mesenchymal stem cell-like characteristics. During the in vitro chondrogenesis, cellular activity was superior during the earlier phase (within 7 day) of differentiation.

장공 계단발파에서 Primer의 위치가 발파진동에 미치는 영향

강추원,양해승,문창일 朝鮮大學校 建設技術硏究所 2000 建設技術硏究 Vol.20 No.1

Not only blasting effects is variable in the long depth hole bench blasting performed at open pits in accordance with working conditions, rock mass conditions, but the blasting vibration velocity is also variable. In comparing the blasting velocities according to blasting methods when long depth hole bench blasting was performed in open pits, the direct priming and indirect priming methods were utilized the level of ground vibration was measured according to the primer position. Also, the regression analysis was measured by real vector value. The results are as followinvg; 1. In the study area, the equation of square root and the cube root shows the confidence of vibration to be 95% as follows; 1) direct priming V=600.6331(◀원문참조▶)^(-1.285) r²=0.869 V=1565.9100(◀원문참조▶)^(-1.290) r²=0.841 2) indirect priming V=549.5082(◀원문참조▶)^(-1.135) r²=0.855 V=1229.3823(◀원문참조▶)^(-1.182) r²=0.869 2. In case of applyion the Scaled Distance ( SD ) of square root, it is shown that the direct priming method has a lower vibration level than indirect priming method, and in the case of applying the SD of cube root, it is the same as the result in the upper a level of SD. 3. Therefore, the direct priming method is recommended to as a means vibration in long depth hole bench a t open pits.

충주 지역 문화의 발전과 활성화 방안

신춘호 건국대학교 중원인문연구소 2001 동화와 번역 Vol.2 No.-

This study is to seek the best way to establish the independent local(Chungju) literature without the central occupation. To achieve the goal we have to review what the traditional culture in Chungju is and what the local literati Performed up to now. Then we can find the best way to develop and to motivate the local literature. At first, according to the results of this study on traditional culture in Chungju, I found the passion of research on Science, patriotic spirit and creative art spirit and confirmed that filial spirit and the love of home town are the traditional value. Park Jai Ryun, Lee Mu young, Lee hup, Ji bong mun, Cheong ho seong, Kwon tai ung, Hong gu bum are the outstanding literary men who uphold the great tradition before independent. In 1950s Kim tai gil, Cho nam du, Yoo jong ho, Shin kyung lim played an active pert in Poem, essay and criticism. In 1970s and 1980s Yang chai young, Chung gun seob and Lee kye sang and 1990s Kim chang sik and Kim young gyo played important role in local literature. With these results we can say that the basis of the literature in Chungju is wide and deep. With the recognition of reality, I propose the following 5 ways to develop the Chung ju literature. First, Know the traditional culture clearly and succession of that. Second, Restructure and merge the literary organizations Third, Get the cooperation of related organizations and secure the publication media. Forth, Let students participate in this process. Fifth, Enhance the position of Chungju literature and the cooperation with central literary organizations. Moreover we have to conduct this development project with clear map. This project should include the short term, mid term and long term action plan and the cooperation plan with cheongju and central literary organizations in detail. Consequently, To develop and activate the Chungju liter·attire, the local literati has to start from the recognition of the traditional culture and enhancement of the spirit of succession. And the local literati should restructure the current organizations and secure the publication media. To archive the development of Chungju literature, the perfect planning and execution should be essential point.

필립핀·말레이의 政治發展과 韓國 政治發展의 比較硏究 : 國民形成과 一體感造成問題를 中沈으로 Centering on the Problem of Nation-building and the National Identity

朴柱璜 全北大學校 1977 論文集 Vol.19 No.-

In this thesis, the comparative study on the political development of the philippines, malay and korea, centering on the problems of nation building and the national identity, is examined from various angles. When we study on the political development of korea historically, we can find out the national consciousness that has been flowing in the stream of Korean history continuously. The march l independence movement in 1919 was a fruit of sovereignty consciousness that had been growing on the basis of the national consciousness historically, That was the moment when Korea had a feeeling of national identity and national integration. That implied the national consciousness that had been growing over the long national history. After the liberation from Japan, Korea started the nation building and state building and gradually set up the modern state. The national integration and the participation consciousness had the long traditional basis in the stream of the single national consciousness on the background of the Korean political culture. That is the reason why korea has achieved the high degree of political development fantastically as nowadays. We can not find out the very specific factor, that can be seen in the Korean development, in the philippine political culture, which is highly individualistic, personal, private oriented, fatalistic with family ties, kinship ties and regionalistic feeling, nor in the malay political culture, which is based on the plural ethnic society.

K+-Dibenzo-18-Crown-6 착물의 안정도에 미치는 용매효과

張珠晥,申甲鐵 慶尙大學校 1980 論文集 Vol.19 No.1

The stability constants of the complexation of KSCN with dibenzo-18-Crown-6 was determined conductometrically at constant ionic strength of∼10-3M and at 10°, 25°, 40° and 60℃ in aprotic solvents which were poor anion solvating solvent; N, N'-dimethylformamide N.N'-dimethylacetamide and dimethylsufoxide. The magnitude of the stability constants were obtained by the order of DMF>DMA>DMSO. This order was dependent on the solvent property as function donocity. From the stability constants, the thermodynamic parameters-enthalpy change and entropy change for the complexation were evaluated.

NATM 터널 굴착시 불연속면을 고려한 터널주위의 변형거동 연구

강추원,유기정,고진석 조선대학교 에너지.자원신기술연구소 2003 에너지·자원신기술연구소 논문지 Vol.25 No.1

In-situ rock mass includes discontinuity such as faults, joints and fracture zone, and underground structure and tunnel within them have some different behavior according to the geometric form and the mechanics properties of discontinuity. It is desirable to consider the effects of discontinuity in designing and constructing the underground structure and the tunnel. Therefore in this study the interface element in finite different program which is one of the continuum modeling was used to effectively reflect the properties of discontinuity. The stability of tunnel would be understanded by analyzing the deformation behavior of around the tunnel with the model for rock mass considering discontinuity. There are some result from this study by FDM analysis considering the discontinuity. It was found that there would be stable state because the convergence analysis was so small. The principle stress had the asymmetry to the vertical axis of tunnel due to the discontinuity. The shotcrete stresses proved to be under the allowable value and the rock bolt axial forces were below the design strength as 10 ton.