자발성 뇌실내출혈 환자에서 임상적 -전산화단층촬영상소견의 상관관계

황선철,김범태,장재칠,주교성,신원한,최순관,변박장 대한신경외과학회 1998 Journal of Korean neurosurgical society Vol.27 No.6

신경망 기반의 라우팅 알고리즘

朴東哲,琴敎瞵 명지대학교 산업기술연구소 2005 産業技術硏究所論文集 Vol.24 No.-

A routing algorithm using the Hopfield Neural Netork (HNN) is proposed in this paper. The proposed algorithm modifies the energy function for achieving the optimality of the solution and higher convergence rate. Experiments are performed on 3,000 large scale communication networks with randomly selected link costs. The results show that the proposed algorithm outperforms convensional methods both in optimality and convergence. Improvements on optimality and convergence for large scale problems over the most recent method are over 65% and over 50% respectively.

小白山 森林構造에 關한 硏究(Ⅰ) : 海拔高에 따른 泉洞溪谷의 植生構造를 中心으로

辛壽哲,金昌浩,朴敎秀 동국대학교 생명자원과학대학 연습림 1993 연습림논문집 Vol.- No.3

Cheon­Dong valley forest, bearing a cool­temperature, broadleaf­deciduous forest zone, ranging from 500m to 1200m by elevation in Mt. Sobeak National Park area was investigated for forest vegetation structure research. Ten plots of 1000㎡ size set up by the clumped sampling method and Classification and Polar Ordination were applied for vegetation structure analysis by environmental gradient the flora of the vascular plants collected from this investigated area were 32 families, 35 genera, 42 species and 3 varieties. Ranging from 500m to 1200m to elevation, Number of species, Number of individuals and Species diversity showed their highest values at 900m elevation respectively. And with increasing altitude those all values showed a tendency decreasing gradually. According to the Importance Value the leading dominant tree species in canopy layer were Styrax obassia, Quercus variabilis, Q. aliena, Carpinus codata while Lindera obtusiloba, Lespedeza bicolor were in understory at low elevation, ranging from 500m to 900m. Ant at high elevation area, ranging from 900m to 1200m, the leading dominant species were Q. monglica, Q. acutisima, Betula platyphylla var. japonica, Cornus controversa, Acer pseudo­sieboldianum, Fraxinus mandshurica, n canopy layer while Deuzia paviflora, Pinus laxiflora were in understory. The result from Classification and Polar Ordination analysis, they showed similarity that the forest vegetation of Sobeak valley area was classified into two sub­communities, one is Q. mongolica, Styrux obassia―Styrux obassia, Q. aliena, Carpinus codata―Styrux obassia, Lespedeza bicolor community and the other is Q. variabilia, Q. acutisima―Acer mono, Fruxinus rhynchophylla―Deutzia parviflora, Lindera obtusiloba community and the major environmental factors were considered to be the difference of altitude and the conditions of soil pH. The successional trends of tree species will be from Q. variabilis, Q. acutisima through Acer pseudo­sieboldianum, Fraxinus rhynchophylla to Carpinus codata at high elevation area, ranging from 900m to 1200m, and from Q. mongolica, Styrax obassia through Styrax obassia, Q aliena to Carpinus codata at low elevation area, ranging from 500m to 900m.

都市 居住 男子 老人들의 公園 利用 分析

김경철,김교준 龍仁大學校 體育科學硏究所 1996 體育科學硏究論叢 Vol.6 No.1

The main purpose of the study was to examine the several aspects of city park usage by urban senior citizens. Questionnaire survey was used for investigation, and the sample size was 273, with the mean age of 71. It was found that `escaping from boredom'(52.0%) was the prime motivation for park visit, and followed by `relaxation'(18.3%), `meeting friends'(10.6%), and `making new friends'(4.8%). One of the things to be noted was that `making new friends' as a kind of social interaction positively influenced to visitor satisfaction level, notwithstanding its weakness as a visiting objective( 〈Table 10〉). The study also found that a positive relationship between park use and life satisfaction, and it implies that the more beneficial park use could lead to the higher life satisfaction ( 〈Table 11〉). As few as 77 respondents replied to the question of onsite park management situation, however, `crowding in park'(18.1%) showed the highest percentages, and `maintenance and cleanliness of park'(12.9%), `not enough accommodation'(12.9%), `gang's illegal conducts'(12.9%), `damages of park resources'(10.3%) and `unacceptable visitor behavior'(10.3%) were the next proportionately.

CO_2 초임계 유체/전도성 에멀젼용액을 이용한 구리판에 대한 니켈 나노도금에 관한 연구

홍교민,홍성철,김문선,정재관 한국공업화학회 2002 응용화학 Vol.6 No.2

In this study, experiments of a nickel elecroplating were performed by a conductive emulsion solution of CO_2/electrolyte/surfactant/entrainer in the supercritical nanoplating system to investigate the effect of the resistivity on plating properties. Resistivity values decreased 60, 35, and 22 Ω at 20, 30, and 50 wt% electrolyte, respectively, and over 60 wt%, the resistivity value was kept constant at 20 Ω. Surface properties of nickel film electroplated by the emulsion solution with 60 wt% electrolyte at 8 MPa was better than that at atmospheric pressure.

실적공사비 개념을 이용한 하도급 적정공사비 예측시스템

박성철,구교진,현창택 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1

The purpose of this study was to predict the subcontract fair cost of general construction by using the index. The index is caculated by data of Price Reserch Institute and CAK(Construction Association of Korea) is used in Time Series Anaysis. Subcontract fair cost is estimated by the index which predicted by Time Series Anaysis. and then, Regerssion Analysis performed in order to consider factor impact on cost. Throughout his study, we will be able to contribute to protect dishonor of subcontractor along with improvement of accuracy of subcontract cost budget in general construction

내측두엽 간질에서 위스콘신카드 분류검사

김철호,이상암,유희정,강중구,이정교 대한간질학회 2003 대한간질학회지 Vol.7 No.1

老人들의 公園訪問 滿足度와 生活滿足度 影響要因 分析

김경철,김교준 龍仁大學校 1997 용인대학교 논문집 Vol.13 No.-

The study aimed to investigate how the selected factors affected to park visit satisfaction and life satisfaction of senior citizens dwelling in metropolitan area. The sample size was 554 male and female seniors aged 60 and over, and the data were collected at three city parks during the month of October 1995. And the data were analyzed by Chi-square test and Logistic regression. The results were varied in each survey area, however, it indicated that the higher aged led to the more frequent park visit, and the higher park visit satisfaction(〈Table 5, 7〉). Analysis also showed that the selected determinants influenced park visit satisfaction and life satisfaction in varied degrees, however, park visit satisfaction was affected proportionately, by acquainting with new people, visit motivations, freqencies of visit, park activities, and duration of stay in park(〈Table 12〉) , and life satisfaction was influenced by park visit satisfaction, visit motivations, duration of stay in park, and acquainting with new people proportionately(〈Table 16〉).

국내 공공부문 설계시공일괄입찰방식의 낙찰자 선정방법 개선에 관한 연구

김만철,서용철,구교진,현창택 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1

Design-Build is considered as the project delivery system to manage construction process more efficiently than design-bid-build. So Korea government has encouraged Design-Build in public sector. But single selection method of weighted criteria doesn't provide the greatest value to owner. Therefore, there is a need to improve selection method to meet owner's needs and project characteristics. This study proposes four types of selection method. Each of selection method is focused on price, qualification, time. The use of these selection methods enable owner to provide the greatest value.

학원선교 프로그램에 관한 기초연구

김철교 培材大學校 1996 培材論叢 Vol.1 No.-

This paper emphasized the importance of the youth ministry as the solution to the aging of Korean churches in the ministry field which has been in the decline recently. Everyone in the ministry field show an agreement with the opinion that the prospcet of the campus ministry has become rather dim. Thus, stemming from this view, this paper emphasized the need to evaluate the present state of the youth ministry, especially that of campus ministry. This paper also defined the problems, as well as the solutions, thereof. The results of the analysis of the questionnaires completed by students, professors, and leaders in the field of ministry are listed below. First, the most important aspect of campus ministry is the understanding of the teenagers and the young adults who are the subjects of the ministry. The programs that were initiated without fully understanding them were mostly not successful. Second, most of the young adults admitted that religion is necessary and showed strong interest in Christianity. Therefore, it could be said that the future prospect of the Christian ministry in Korea looks optimistic. Third, the students showed higher interest in the worldly society than in spirituality and afterlife. The campus mission programs should reflect upon such desires in order to be successful. Fourth, the students held a very negative views toward chapel services. Hence, the programs should be redesigned into those which can arouse the interests and needs of the students. Fifth, all the mission programs should be planned and carried out by the students themselves. The religious leaders should only assume the role of a supporter or an enabler.