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.

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.

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

靑春誌의 隨筆의 表情 : Centered on the Chungchoon

鄭周煥 湖南大學校 1997 호남대학교 학술논문집 Vol.18 No.1

Started on October 1, 1914, and ended on September 26, 1918, Chungchoon has leaved only 15 volumes. This magazine had met its crises with government inspections several times, and its first interruption was come with its 6th volume. With publisher' struggle, its first republication was made on May 16, 1917. Its printing was continued with no problems till 9th volume, but its 10th and 11th volumes were made bimonthly, from the 12th volume every three month, some times irregularly, and finally Chungchoom met its end 1918. Seen from the above, magazine Chungchoon's development was not smooth. Chungchoon had been the secondly published magazine by Choi, Nam-Sun, after his first magazine Sonyun. Being under the Japanese rule at that time with no freedom of speech and press, Korean culture was totally devastated. We usually call that time the dark, unhappy, and despairing age. The freedom of speech and press for Koreans could only be found in a restricted area on the Korean students in Tokyo University. Conditions on the approvement of Chungchoon was that content be restricted in a narrow area such as general cultural matters. We think that the achievement of Chungchoon was to introduce literature and to enlarge the base of literature. Considering being no scholar of pure literature in Korea, this achievement was so great as Lee, Kwang-Soo's literature world had been developed through Chunhchoon. His all great works were born by way of Chungchoon. His effort to establish agreement between speaking and writing and making much of Korean letters above Chinese ones was a turning point in literature expression skills in Korea.

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.

도시생활하수 특성 분석에 관한 연구

문추연,이동섭 경운대학교 산업기술연구소 2002 産業技術硏究論文誌 Vol.5 No.1(A)

The purpose of this study is characteristic analysis of municipal sewage with source(union, business, combination and individuality). In the analysis results of union sample, average concentration in business area of TBOD, TCOD_Mn and TCOD_Cr were 190㎎/l, 83㎎/l and 336㎎/lℓ, respectively. And TCOD_Cr /TBOD ratio was 1.8. TBOD of union sample from individuality house area was 99㎎/l. In the analysis results of business area sample, average concentration of TBOD, TCOD_Mn and TCOD_Cr were 127㎎/l, 83㎎/l and 243㎎/l, respectively. Average concentration of T-N was 51.8㎎/l. In the analysis results of combination house area sample, average concentration of TBOD was 128 and TCOD_Cr /TBOD ratio was 1.7. In the analysis results of individuality house area sample, average concentration of TBOD, TCOD_Mn and TCOD_Cr were 87㎎/l, 46㎎/l and 218㎎/l, respectively, and TCOD_Cr /TBOD ratio was 2.5.

VIP 공정을 이용한 생활하수의 처리에 관한 연구

문추연,김동일,김수생 동아대학교 생산기술연구소 2000 生産技術硏究所硏究論文集 Vol.5 No.2

Recently in Korea and developed countries, nitrogen and phophorus removal are the main target to improve effluent qualities, in order to protect discharge basins from eutrofication by N and P. Introduction of an advanced treatment function to existing wastewater treatment systems, which can be removed nitrogen and phophorus as well as BOD, COD and SS, have been required to protect water resources from domestic and industrial wastewaters. For the improvement of effluent quality through nitrogen(N) and phophorus (P) removal, this study conducted to investigate and analyse of the municlpal sewage treatment process such as VIP(Virginia Initiative Plant) process on cost effectiveness operating and improvement of effluent quality. Based on the results of the experiments, The average removal efficiencies of organic matter were BOD 87.4 ~ 91.8%, COD 77.7 ~ 81.3%. At influent concentration of T_-N 41.8mg/l, NH_4-N 36.2 mg/l, T_-P 3.14mg/l and PO_4-P 1.6 mg/l, nutrient removal efficiencies were NH_4-N 95.9%, T_-N 67.8%, PO_4-P 69.9%, and T_-P 70.7%.

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.