남병철의 혼천의 연구 I

이용삼,김상혁,남문현,LEE YONG-SAM,KIM SANG-HYUK,NAM MOON-HYON 한국천문학회 2001 Journal of The Korean Astronomical Society Vol.34 No.1

In this paper we have reconstructed an armillary sphere based on the Method of an Armillary Sphere Making described in the Volume 1 of The Collection of Writings on the Scientific Instruments-Uigijipsol (儀器輯說, two volumes) edited in the 1850's by Nam Byong-Chul (南秉哲, 1817-1863) who was a famous Korean states-man-scientist. Nam achieved convenience and accuracy in the measurements of stellar positions in the manner of selective setting the equatorial, ecliptic and horizontal poles by adding a pole axis exchange ring called Jaigeukkwon (載極圈) between the Three Arrangers of Time and Four Displacements. We made use of 3-dimensional graphic software for modelling Nam's armillary sphere which consisted of five layers-eight rings. Results of simulation showed that the pole axis exchange ring functioned properly in setting the equatorial, ecliptic and horizontal coordinates simply by exchange of positions of specified holes on the ring. We ascertained that the invention of Jaigeukkwon solved inherent problems in the conventional Chinese armillary sphere in computation of real ecliptic coordinates. It was revealed that Nam Byong-Chul made great contributions in the East Asian history of armillary sphere making.

Antithrombotic and Anticoagulant Components of Plants

Han, Yong-Nam 경희대학교 동서의학연구소 1999 INTERNATIONAL SYMPOSIUM ON EAST-WEST MEDICINE Vol.1999 No.1

Yong-Nam Han. Natural Products Research Institute, Seoul National University, Seoul, korea.Antithrombotic and Anticoagulant Components of Plants. Proceedings of International Symposium on East-West Medicine, Seoul. Page 149-152, 1999.-There are many kinds of herbal drugs related to "Blood"(現血藥)in the Oriental Traditional Medicines. In order to investigate the antithrombotic and anticoagulant activities of blood related medicinal plants, we have utilized some screening methods such as intrinsic and extrinisic anticoagulant and antiplatelet activities, in vivo and in vitro. In the first study to screen the antithrombotic activity, we have measured the bleeding time(BT), the whole blood recalcification clotting time(WCT) and the plasma reclaification clotting time(PCT), successively, after orally administering an extract of a herbal medicine to rats. An intrinsic pathway anticoagulant drug should prolong all the three kinds of barometers, an extrinsic pathway anticoagulant one should prolong only BT, and antiplatelet one should prolong both BT and WCT. In the second study to isolate activ principles, we have measured in vitro the inhibitory activities on PCT, TF(tissue factor) and PA(platelet aggregation) for the intrinisic pathway anticoagulant, the extrinsic pathway anticoagulant and the antiplatelet activities, respectively. Recently, we have isolated weveral TF inhibitors(the extrinsic pathway anticoagulant) such as pubescenolic acid (20-epi-pomoli acid) from Ilex pubescens roots (毛冬靑), zivu-glycoside Ⅱ and pomoli acid from Sanguisorba officinalis roots (地楡), and compund I and X from Cinkgo biloba leaves(銀杏藥).Their anticoagulant activities were evaluated in vivo and in vitro on rat brain and lung tissue, respectively. Rat TF was measured by its procoagulant activity using one stage clotting assay method modified by us. Ziyu-glycoside Ⅱ, one of the most potent TF inhibitor was effective in vitro, but not in vivo. Thus, we prepared a derivative, named ZYM201, which strongly inhibitied the rat brain TF activity in vivo, Oral administration of ZYM201 enhanced atherosclerotic index in dietary, streptozo-tocin-induced, and alcoholic hyperlipidemic rats (unpublished data).

학습동기와 자아개념 및 학교적응간의 관계 분석

김용래,허남진 弘益大學校 敎育硏究所 2003 敎育硏究論叢 Vol.- No.20

The purpose of this examination was to find out the relationship among secondary school learner's learning motivation, self-concept, and school-related adjustment. And in order to achieve the purpose of this examination sampled middle/high school learners in Seoul and other areas. The instruments used for the data collection were 'School learning motivation Scale」 (Kim. Yong-Rae, 2000), 'Self-concept Scale」 (Kim, Yong-Rae, 1995) and 'School -related adjustment Scale, (Kim. Yong-Rae, 2000). The collected data analysis were performed using SPSS/WIN(11.0) program, and analysis Mean score(M), Standard Deviation(SD), Zero Order Correlation(r) and Multi-Regression Analysis. All statistic values were tested by t-test and F-test in the significant level of p<.05. The major findings of this examination were as follows: First, there were mostly significant differences in school-related adjustment depending on the learning motivation, self-concept and the upper, middle and low levels of its sub-factors(p<.00l). Second, there was a significant positive correlation by .687 between learning motivation and school-related adjustment and there also was a significant positive correlation by .641 between self-concept and school-related adjustment. Third, learning motivation and self-concept were significantly positive influences on Korea secondary school learner's school-related adjustment respectively.

두경부 편평세포암에서 형질전환 성장인자-알파(TGF-α)의 발현에 관한 연구

도남용,이승학,김완수,김경일,이동용,김용기,최봉남 조선의대 1996 The Medical Journal of Chosun University Vol.21 No.2

만성중이염의 골도청력변화

박선홍,노용훈,이도용,나한조,김용기,최봉남,도남용 朝鮮大學校 附設 醫學硏究所 1996 The Medical Journal of Chosun University Vol.21 No.1

We have usually experienced bone conduction impairment in chronic otitis media, but it is unclear that raised bone conduction threshold is due to the reflection of cochlear dam- age and / or Carhart effect ( an artificial elevation of bone conduction threshold due to conductive defect ) or both. The purpose of this study is to verify the influence of the artificial elevation of the bone conduction threshold in chronic otitis media and to estimate Carhart effect. A total of 336 cases of tympanoplasty with unilateral chronic otitis media without any other causes of sensorineural hearing loss was studied. The average threshold levels of the bone conduction in diseased ears ranged from 18.5dB at 4kHz to 12.1dB at 250Hz The longer duration of the disease, the larger perforation size, the more severe damage of the middle ear structure and the presence of the cholesteatoma made bone conduction threshold increased. The postoperative thresholds of bone conduction were Improved in 36 cases (40.4%) of the 89 cases that underwent operation with type I tympanoplasty technique without electrie drilling. The degree of the maximal improvement was 14.3dB at 2000Hz and the minimum was 8.8dB at 250Hz. but these result did differ from a statistically significant degree. The result suggest that the bone conduction threshold in chronic otitis media is elevated artificially by conductive defect and improved by successful reconstructive surgery.

후두 및 하인두 암종에서 p53단백 발현과 Espstein-Barr Virus 검출

최영환,도남용,나한조,이도용,노용훈,김완수,최종선 조선대학교 2001 The Medical Journal of Chosun University Vol.26 No.2

Background and Objectives : When p53 cancer suppressor gene, occurs gene deletion or point mutation, malignancy develops by loss of p53 function with abnormal p53 protein. The Epstein-Barr virus (EBV) is the causative agent of certain type of lymphoma and undifferentiated nasopharyngeal carcinoma. However, the role of EBV as a causative factor in other head &eck tumors is not fully elucidated except nasopharyngeal carcinoma. This study, the author examined that p53 expression and detection rate of EBV correlate to development of laryngeal and hypopharyngeal squamous cell carcinoma(SCC) and play the possible role of prognostic indicators. Materials and Methods : Formalin-fixed, paraffin-embedded tissue specimen from 32 cases of larynx and hypopharyngeal squamous cell carcinomas were studied by immunohistochemical staining for p53 and EBV. The results of analysis were compared with clinicopathological parameters. Results : p53 expression was 56.3% (18 cases) and the detection rate of EBV was 43.6% (14 cases) of 32 cases in laryngeal and hypopharyngeal squamous cell carcinomas. p53 expression was correlate with histologic grade (p<05) only. Detection of EBV was not correlate with clinicopathological parmeters. Conclusion : These results suggest p53 expression and the detection of EBV may be related with development of laryngeal and hypopharyngeal squamous cell carcinoma. And, the expression of p53 protein can be used as a prognosticator in laryngeal and hypopharyngeal squamous cell carcinoma under certain limitation.

불규칙한 풍하중을 받는 현수교의 동력학적 해석

김종인(Jong In Kim),김태남(Tae Nam Kim),이용재(Yong Jae Nam) 한국강구조학회 1990 韓國鋼構造學會誌 Vol.2 No.2

Stochastic dynamic analysis of suspension bridge subject to random wind loads were carried out by mode-displacement method and mode-acceleration method. The computed dynamic characteristics are vertical and torsional vibrations of NAM-HAE BRIDGE. From numerical results, it was found that mode-acceleration method, which formulated in this paper, was more reliable and economical than mode-displacement method.

초등학교 체육 수행평가에 대한 비교 분석

남중웅,전용배 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.4

This research focuses on the providing basic foundation needed in search of the proper way to evaluation in physical education for substantiality and normalization of it in the front line of elementary schools through analysing the actual conditions of evaluating them. The researcher have explored the actual conditions of evaluation in physical education of the elementary school based on a survey of which sample covers 382 teachers and 299 students in the elementary schools of Busan city. The questionnaire for this research was made focused on the evaluation of physical education referred to many survey results of Byung-rae Cho, In-kyu Choi, and other previous research results in the literature, and statistically tested through t-test, Chi-square tests, ANOVA, So the result of analysing the questionnaire is the followings: First, The research results are statistically significant by their gender, experience, academic carrier, school size, school year, working area(p<.05). The results showed there were statistical significances in experience, academic carrier, the existence of teachers in charge, working area and came to know that experienced teachers took much more time in their evaluation than unexperienced. Second, these results were statistically significant by academic carrier, the existence of teachers in charge, working area(p<.05). Their results were statistically significant by school size, working area, For utilization of evaluation outputs, 64.2% teachers used them for grasping capabilities of students, which showed there had been freshly much better awareness about the performance evaluation. Third, for evaluation fields on students in physical education, the most preferred field of Students was a game and the results were statistically significant by gender, school year(p<.05).

지지방식에 따른 흙막이벽의 변형거동과 안정성

남정만,윤중만,이용두 제주대학교 해양연구소 2000 해양과환경연구소 연구논문집 Vol.24 No.-

An extensive instrumentation systems are designed on twenty-one anchored excavation sites and twelve braced excavation sites to observe the deformation behavior of the earth retention walls. The excavation sites are divided two cases by construction conditions: one is a stable construction site and the other is an unstable construction site. In this excavation sites, the anchor, strut load and the horizontal displacement of walls were measured from load cell and inclinometer. The different behavior of anchored and braced walls are precisely investigated on the basis of field measurements. And an empirical construction criterion is established to judge and ensure the stability of earth retention wall by the relationship between the earth pressure and the horizontal displacement of wall measured from both stable and unstable construction sites.

XML/EDI기반 건설물류관리시스템

남경우,서용칠,구교진,현창택 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)

Logistics in construction project includes purchase, procurement and transportation on the network consisting of contractor, subcontractor, supplier, manufacturer, carrier and so on. Collaborations and integrations among the each participants play a key role. It is necessary that we take advantage of recent information technology in order to optimize logistics and achieve collaborative integration. The use of extensible markup language(XML) has been continued increasingly in recent years. This research aims at presenting conceptual Logistics system based on XML/EDI. Various participant in construction project will have more efficient and malleable Logistics atmosphere.