효율적인 일반화 자료처리를 위한 작업공정 개발

최석근,김명호,황창섭 한국지리정보학회 2003 한국지리정보학회지 Vol.6 No.3

본 연구는 대축척 수치지도 ver. 2.0(1/5,000)을 이용하여 소축척 수치지도 ver. 2.0(1/25,000)으로 제작하기 위한 처리공정을 개발하였다. 기존 수치지도와 달리 수치지도 ver. 2.0은 속성정보 및 면처리 등 많은 정보들을 포함하고 있기 때문에 이를 효율적으로 처리하기 위하여 소축척 수치지도의 지형·지물코드에 포함되지 않는 레이어를 삭제하고, 자료처리를 8대 지형·지물별로 분류하여 처리한 후, 자료를 병합하는 과정으로 작업공정을 도출하였다. 따라서 본 연구에서 개발한 작업공정은 향후 최적 자동일반화시스템 개발시 기초자료로 이용할 수 있을 것이고, 소축척 수치지도 및 각종 주제도 제작에 기여할 수 있을 것이다. This paper proposes a work procedure for generalizing large-scale digital maps ver. 2.0(1/5,000) into a small-scale digital map)1/25,000). Unlike a existent digital map, the digital map ver. 2.0 has a variety of attribute data as well as graphic data. To perform an efficient map generalization with these structural properties, we establish a work procedure as follow; firstly, delete layers which don's exist in small-scale digital map's feature code, and secondly, generalize features which have been classified into 8 layers, and finally merge 8 layers which have been generalized into 1 layer. Therefore, we expect that a work procedure which is proposed in this paper will play a fundamental role in automated generalization system and will contribute to small-scale digital mapping and thematic mapping.

1/25,000 수치지도를 이용한 1/25,000 지형도 제작

최석금, 조의환 충북대학교 건설기술연구소 2010 충북대학교 건설기술연구소 논문집 Vol.29 No.1

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타이어 편마모 해소를 위한 최적차량 구조설계

최종근,김명규,최석환 도립 강원전문대학 1998 道立 江原專門大學 論文集 Vol.1 No.1

This paper has been studied to eliminate the wear of tire on the solid axle type of an automotive. The heavy tracks, different from passenger cars, have a front axle which consists of a solid axle in a shape of I-beam. Therefore, it is difficult to change the fixed angle of camber and king pin once they are assembled. This study has introduced a suitable method to remove the uneven wear of tire by combination of camber and king pin angle at the stage of design. Parametric optimization has been carried out by setting the optimum characteristics for static and dynamic analysis. The static characteristics represents a condition where the tire and ground makes a perpendicular angle, which makes the ground camber to be zero. The optimal dynamic condition is to minimize the lateral force between the tire and ground in dynamic simulations.

기제와 피부투과촉진제가 아포모르핀의 피부투과에 미치는 영향

최영근,최옥,김건남,박은석,지상철 한국약제학회 2003 Journal of Pharmaceutical Investigation Vol.33 No.2

In order to evaluate the effects of vehicles and penetration enhancers on skin permeation of apomorphine, the skin permeation rates of apomorphine from vehicles of different composition were determined using Franz diffusion cells fitted with excised rat skins. Solubility of apomorphine in various solvents was investigated to select a vehicle suitable for the percutaneous absorption of apomorphine. The solvents used were propylene glycol (PG), Transcutol^??, Labrasol^??, Labrafac hydro WL^??, Labrafil WL 2609 BS^?? and isopropyl alcohol. Even though permeation rates of apomorphine from each vehicle were low (0.08-0.36㎍/㎠/hr), the combination of PG and Labrafac^?? increased it significantly. The permeation rates of apomophine from PG/Labrafac^?? mixtures increased as the volume fraction of PG in the mixture increased. The maximum permeation rate of 18㎍/㎠/hr was achieved at 30% of PG, which decreased with further increase of PG fraction. A series of fatty acids, alcohols and monoterpenes were employed as penetration enhancers. Incorporation of each enhancer in the PG/Labrafac^?? (30:70) mixture at the level of 10% improved the skin permeation significantly. The highest permeation rate, 117㎍/㎠/hr, was attained with myristic acid.

후하소뇌동맥 동맥류에 의해 유발된 안면경련

최석근,이봉암,고준석,임영진,김국기,김태성 경희대학교 2004 慶熙醫學 Vol.20 No.1

昌德宮 樂善齋後園 一園의 立地와 空間構成에 關한 硏究

최종희,이석래,이재근,김용기 한국정원학회 2002 한국전통조경학회지 Vol.20 No.1

This study aims to discuss the characteristics of location and spatial organization of the rear garden Naksonjae in Changdok palace. To do this, we studied in two ways; analysis of the present conditions and photographing, research materials about the form of physical structure and review of historical documents. The result of analysis in the sight of the location and spatial structure was good matched. At the beginning, the neighbor on rear garden Naksonjae only had spaces for the Crown Prince in Changdokkung but after 1847, shows transitional pattern that the king Hunjong’s private space and attached space were added. The spatial organization of the neighbor on rear garden Naksonjae was divided into entrance, madang, building, backyard, flower terrace, dongsan. In the neighbor on rear garden Naksonjae was imported borrowed scenery of surrounding landscape and while placed arranging various constituent elements of the small-scale building, decorated walls, small doors between walls, stoneworks and chimney in trying to formalize the landscape. The result of this study, the political and social, technical phenomena which constitute the physical construction pattern affected the locational property and the spatial organizaion of the neighbor on rear garden Naksonjae.

景福宮·昌德宮·點景物 紋樣에 관한 硏究

최준형,이석래,이재근 한국정원학회 2002 한국전통조경학회지 Vol.20 No.1

The purpose of this study is to present basic materials on garden ornaments and their symbolism in traditional spaces. The subjects for this study are the Kyongbok Palace and the Changduk Palace that were the palaces of the Chosun Dynasty. The patterns of the garden ornaments in those palaces were investigated by comparison with past literature and traditional pattern collections. The findings of the research are as follows. Animal patterns were found on most of the stone statues and symbolized the expulsion of evil and the protenction of the King. They were used mainly in King’s Palace to emphasize the expulsion of evil and the protection of the King in official ceremonies. A stone mortar filled with water was used as a mirror and stonework, stone pedestals, chimneys, and stone boxes were mainly decorated with botanical patterns and used a lot in the royal villa and the living space for praying for the luck the user of the space. As shown above, there was a close correlation to space, the type of garden ornament, classification, and the symbolism of the patterns. A stepping stone used in mounting or dismounting a horse was used practically rather than ornately and there was usually no special ornament on the stone. However, on the stepping stone in the Sujung Annex, a decorated lotus pattern symbolized creation and prosperity with the purpose of calming the minds of the ministers. There were grass and flower patterns on only three sides of the stone box of Yonkyung Hall and therefore, it was considered functional and practical. The flag pedestal that measured the direction and velocity of the wind by using a flag was decorated with a wave pattern to sttongly emphasize the government. The stone mortar of Okrychun where common people enjoyed their lives and partied showed no special patterns and was located in the waterway to divert the flow of the water.

차체 구조의 빔모델링에 관한 연구

최종근,이승훈,최석환 도립 강원전문대학 1998 道立 江原專門大學 論文集 Vol.1 No.1

This paper has been studied to analyze an automotive body structure by means of a simplified beam model rather than a detailed shell model. It has been done to enhance analysis performance to facilitate design changes. Basically automotive body consists of box channel structures and the strain energy for deformation is concentrated in the vicinity of joint area. Therefore analysis errors from beam modeling are due to the difference in strain energy of joint area between beam and shell modeling. Technique using modified section properties has been introduced, and some important nondimensional factors have been also introduced. We have found out the ratio of thickness and section length, t/H is the main factor to decide whether we have to use this new technique in beam modeling of box channel structures with joint. This technique shows the same results from shell modeling within 2 % error, both in static and normal mode analysis for an isolated model.

가상기준점측량을 이용한 도시기준점 분석

최석근, 안원태, 박명진 충북대학교 건설기술연구소 2008 충북대학교 건설기술연구소 논문집 Vol.27 No.1

Realtime Kinematic(RTK) method make decision to correct position by calculating correction value of rover and transmitting to rover data from GPS base station. However. this method has many problems as it required base station and rover. Also lots of time for setting, commit workers and many equipment were needed. Therefore, in this study, we made system using virtual reference station and analysed the accuracy of urban control point through VRS RTK method without limited time and distance. As result of this study, two control points were obtained with good results in expected accuracy, therefore it was good method for management of urban control point. Also, it was useful to reconstruct control point immediately and to build urban information system.

대장직장종양에 있어서 Hand-Assisted Laparoscopic Surgery (HALS)의 초기 경험

조호영,최선근,구지회,허윤석,이건영,김세중,조영업,안승익,홍기천,신석환,김경래,우제홍 대한내시경복강경외과학회 2003 대한내시경복강경외과학회지 Vol.6 No.-