빔 웨이브 가이드 급전계 카세그테인 안테나의 설계 및 특성에 관한 연구 ( A Study on the Design and Characteristics of a Cassegrain Antenna With Beam Waveguide Feeds )

김종중,장대석,이상설 한국통신학회 1986 한국통신학회 학술대회논문집 Vol.5 No.2

척수를 절단한 흰쥐에 태생기의 Serotonin을 함유한 솔기핵을 이식한 후 척수의 형태학적 재생 및 기능에 관한 연구

김종중,정윤영,장인엽,정주현,문정석,김흥중 대한해부학회 1995 Anatomy & Cell Biology Vol.28 No.6

도시 첨단산업클러스터의 입지요인 분석

김종중 대한국토·도시계획학회 2009 國土計劃 Vol.44 No.2

This study aims to analyze a spatial concentration and network of Seoul Digital Valley as a representative case of urban industrial complex in Korea and secondly, to identify locational factors of Seoul Digital Valley and finally to suggest a policy implication. Also this study extract variables affecting business' decision to stay or leave to other areas and interpret its meaning. The frequency of firms surveyed by business type, business scale, development phase etc is analyzed. The forward and backward linkage of planning-R&D-production-marketing are also analyzed. And also the location of R&D service is almost in Seoul Digital Valley. The results show that the businesses in Seoul Digital Valley are R&D-oriented small and medium enterprises. The frequency and the magnitude of the locational advantages is analyzed. The result shows that the advantages responded frequently are as follows: location cost, transportation infrastructure, service facilities, pleasant environment, telecommunication infrastructure, accessibility to urban center or major facilities. This show the result of factor analysis on locational advantages to extract new factors representing the similar group of locational advantages. There are five factors which has eigen value over 1.0. And those five factors can explain 62.8% of all variance. Five factors could be named as locational factor of business support, locational factor of physical facilities, locational factor of environment, locational factor of business clustering, locational factor of support policies. The probability of continuous stay is analyzed to find out which locational advantage affect the decision on stay or not of the firms in Seoul Digital Valley. The result of logistic regression shows that the variables positively affecting the decision of remaining are accessibility to customers and market, concentration of the same business type for technology cooperation, technology cooperation with a higher research and education institute, easiness of using technology support institute, support policy or program of local government, easiness of expansion, brand value of Seoul Digital Valley, transportation easiness to related firms, telecommunication infrastructure, linkage with R&D and production, accessibility to urban center or major facilities, service facilities. The result of logistic regression shows that the variables negatively affecting the decision of remaining are accessibility to suppliers, easiness of securing a high class work force, concentration of business support service, enlargement of market, regional quality for innovation and cooperation, support policy or program of central government, plenty of learning opportunity, location cost, transportation infrastructure, pleasant environment. In summary, the locational advantages of Seoul Digital Valley are formed focusing on physical and environmental factors and these could induce high technology firms to Seoul Digital Valley. But the support on technology innovation and R&D related innovation is necessary to upgrade the competitiveness of Seoul Digital Valley.

[구연21]척수손상 후 성체줄기세포 이용에 관한 연구

김종중,정윤영,문정석,박영란,김복 대한체질인류학회 2003 대한체질인류학회 학술대회 연제 초록 Vol.46 No.-

한국인 태아의 얼굴신경 말초가지의 분포에 관한 해부학적 연구

김종중,정주현,문정석 대한체질인류학회 1994 대한체질인류학회 학술대회 연제 초록 Vol.37 No.-

고지방 식이 및 참당귀의 엑기스 투여가 흰쥐 관상동맥벽의 탄력섬유에 미치는 형태학적 연구

김종중,문정석,정주현,문영희 朝鮮大學校 附設 醫學硏究所 1983 The Medical Journal of Chosun University Vol.8 No.1

Observation of the elastic fibers of the coronary artery walls in adults rats has been carried out by administering a high fat diet for 100 days and Angelica gigas Nakai extract for 20 days. The results obtained are summarized as follows : 1. The development of the elastic fibers in the coronary artery walls was much poorer in the high fat diet group than in the standard diet group. 2. The development of the internal elastic membrane in the tunica intima was rich in all experimental groups. 3. Scattered irregular fibers and fine and cut elastic fibers were observe in the media of all groups. 4. External elastic membranes and adventitia were not observed in any of the groups. 5. Highest development of internal elastic membranes was observed in the A, B-IV and C-IV, groups which were standard diet and Angelica gigas Nakai extract administration groups. 6. Poor development of internal elastic membranes was observed in groups B-III and C-II. 7. There was high development of the internal elastic membranes in groups fed the Angelica gigas Nakai extract.

식물의 구조와 기능'에 대한 초등학교 아동들의 지식구조와 학습성향과의 관계 : Reflected on the Concept Maps of the 'Structure and Function of Plant' Unit

김종중,송남희 한국과학교육학회 2002 한국과학교육학회지 Vol.22 No.4

본 연구는 '식물의 구조와 기능'단원의 학습 전 아동의 지식구조와 학습과정 및 학습 종료 7개월 후까지의 지식구조의 변화를 아동의 학습성향(유의미학습과 암기학습)과 관련지위 조사한 것이다. 연구단원과 관련된 기존의 지식구조를 알아보기 위하여 5학년 아동들에게 1차 개념도를 그리게 하고, 매 4차시 수업 후각각의 개념도를 그리게 했다. 그리고 지식구조의 지속효과를 알아보기 위하여 단원 학습이 종료된 직후와 3개원, 7개월 후에도 각각의 개념도를 그리게 했다. 학습과정 동안에는 기존의 개념도를 근거로 하여 개념도를 그리게 하였으며, 단원 학습 종료 후에는 기존의 개념도가 제시되지 않은 상태에서 개념도를 그리게 하였다. 아동들이 그린 각각의 개념도는 그 당시의 식물의 구조와 기능에 대한 이해 정도를 나타내었다. 초등학교 5학년 아동들은 '식물의 구조와 기능' 단원의 학습에 들어가기 전에 이와 관련된 여러 가지 개념들로 이루어진 사전 지식구조를 가지고 있으나 그 중 과학적으로 타당한 것은 개념도 상에서 2단계의 위계와 5개의 관계에 불과하였다. 한 단원의 학습이 진행되어감에 따라 아동들의 지식구조는 꾸준히 그리고 점진적으로 증가였다. 그러나 이러한 증가는 학습성향에 따라 차이를 보이며, 유의미 학습자가 암기 학습자보다 더 많이 증가하였다(관계, 연관, 예:p<.01. 위계: p<.05). 지식구조의 변화에 있어서 학습성향간에 다소 차이가 있으나 재구조화는 단원 학습성향간에 다소 차이가 있으나 재구조화는 단원학습의 초기에 높은 빈도로 일어났으며, 말기에는 전혀 일어나지 않았다. 조정은 유의미 학습자보다 암기 학습자에서 더 많이 일어나고 확장은 이와 반대로 유의미 학습자에서 더 많이 이어났다. 암기 학습자의 개념도 점수는 단원 학습을 마친 후 시간이 경과함에 따라 모든 범주에서 차츰 감소하였다. 그러나 유의미 학습자의 경우 단원 학습 후 3개월보다 7개월에서 오히려 소폭 증가했다. 그러므로 대체로 암기 학습자가 학습과정에서 새로이 구축하고자 하는 더 분화되고 정교한 지식구조가 유의미 학습자보다 불안정한 상태에 있으며, 지식구조의 분화 정도도 유의미 학습자에 비해 낮다고 할 수 있다. This study examined the knowledge structure constructed by children before formal instruction, and successive changes in the structural complexity of knowledge during and after the learning of 'Structure and Function of Plant' unit. It also investigated how those changes were affected by children's learning modes. The researchers made the 5th graders draw the first draft of their concept map to see the pre-existing knowledge structure concerned with the unit and four more concept maps after completing every fourth lesson. And to see how long their knowledge structures were preserved, the researchers made children draw additional concept maps in 3 days, 3 months, and 7 months after completing the unit. Children drew their current concept maps on the basis of the previous one while learning the unit and without the previous one after completing the unit. Each concept map drawn by children showed the degree of their current understanding on the structures and functions of plants. The results revealed that only two levels of hierarchy and five relationships among the components of the first concept map(relationship, hierarchy, cross link and example) were proven to be valid in terms of conceptual relevance. Growth in the structural complexity of knowledge took place progressively throughout the unit and the effects of learning mode on the growth were favorably reflected in concept map scores of meaningful learners over time(relationship, cross link, example: p<.01, hierarchy: p<.05). Although there were some differences on the concept map scores between two types of learners, they commonly showed that knowledge restructuring had occurred apparently in the early periods from the 1st to the 6th lesson and had not occurred at all in the last period of the unit. The frequency of tuning was higher in rote learners than in meaningful learners throughout the unit, but the frequency of accretion was reverse. Concept map scores of rote learners constructed in the course of learning of the unit decreased little by little gradually in all the categories after completing the unit. However, the average total map score of meaningful learners increased a little more in 7 months than in 3 months after completing the unit. Therefore it can be inferred that meaningful learners construct more stable and well-differentiated knowledge structures than the rote learners.

고지방 식이 및 참당귀 엑기스 투여가 흰쥐 腎葉間 動脈의 탄력섬유에 미치는 영향

김종중,문정석,정주현 朝鮮大學校 附設 醫學硏究所 1984 The Medical Journal of Chosun University Vol.9 No.1

Observation of the elastic fibers of the interlobar artery wall of kidney in adults rats has been carried out by administering a high fat diet for 100 days and Angelica gigas Nakai extract for 20 days. The results obained are Summarized a follows : 1. Observation of the development elastic membrane outer most layer of the adventitia in the Interlobar artery of kidney in all Groups. 2. The development of the elastic fibers in the Interlobar artery wall of kidney was much poorer in the lunica media. 3. Highest development of elastic fiber was observed in the A, B-Ⅲ and C-Ⅲ, Groups which were standard diet and Angelica gigas Nakai extract administration groups. Also poor development of elastic fiber was observed in groups B-Ⅳ and C-Ⅱ. 4. There was high development of the elastic fiber in groups fed the Angelica gigas Nakai extract.

韓國人 成人 男子에 나타난 非 正常的인 脾臟의 1例

김종중,문정석,정주현 順天鄕大學校 1980 의대논문집 Vol.5 No.-

Authors took an abnormal spleen from a korean male adult cadava aged about 52 years in the Anatomy department of medical College, Chosun University. After dissection, we report views on autopsy and discussion on references. Particular matters were as follows 1. Spleen weight : 3,760gm; Speen length: 32,50cm ; Spleen width : 17,25cm, Spleen thickness : 11,50cm. 2. Spleen type : tetraheadral type.

고양이 감각 및 운동겉질에서 calbindin D-28k와 parvalbumin에 대한 면역세포화학적연구

김종중,장인엽,정윤영,윤상필,문정석 대한해부학회 1998 Anatomy & Cell Biology Vol.31 No.2