CAD Data Conversion to a Node-Relation Structure for 3D Sub-Unit Topological Representation

Mark Stevens(마크 스티븐스),Jinmu Choi(최진무) 대한지리학회 2006 대한지리학회지 Vol.41 No.2

3차원 위상 자료는 응급상황 처리와 3차원 네트워크 분석 등의 3차원 공간분석에 필수적으로 요구된다. 이 연구에서는 현제까지의 3차원 위상 데이터 모델에 대해 살펴보고, 건물을 설계하기 위해사용되는 2차원 CAD 도면 데이터로 부터 3차원 위상적 노드-관계 데이터를 추출하는 방법을 개발하였다. 이 방법은 중심축 변환과 위상적 노드-관계 알고리듬들을 이용한 두 단계로 이루어진다. 첫번째 단계는 중심축 변환 알고리듬을 이용하여 CAD 데이터에서 폴리곤이나 이중 선으로 표현되는 벽으로부터 그 중심선을 생성하여 벽의 골격을 추출하는 것이다. 두번째 단계는 추출된 벽의 골격 자료를 이용하여 방을 3차원 노드로하고 방들간의 연결을 관계로하는 위상적 노드-관계 구조를 생성하는 것이다. 따라서, 그러한 연결들은 노드들간의 이웃성 또는 연결성을 표현하게 된다. 결론적으로, 이러한 변환방법으로 미시적 수준의 개별 건물들의 내부구조를 표현하는 3차원 위상구조 데이터는 건물의 도면 작성에 자주 사용되는 CAD 데이터로 부터 쉽게 생성될 수 있을 것이다. Three-dimensional topological data is essential for 3D modeling and application such as emergency management and 3D network analysis. This paper reviewed current 3D topological data model and developed a method to construct 3D topological node-relation data structure from 2D computer aided design (CAD) data. The method needed two steps with medial axis-transformation and topological node-relation algorithms. Using a medial-axis transformation algorithm, the first step is to extract skeleton from wall data that was drawn polygon or double line in a CAD data. The second step is to build a topological node-relation structure by converting rooms to nodes and the relations between rooms to links. So, links represent adjacency and connectivity between nodes (rooms). As a result, with the conversion method 3D topological data for micro-level sub-unit of each building can be easily constructed from CAD data that are commonly used to design a building as a blueprint.

독일의 도덕과 관련교과의 내용구성에 대한 실태 연구 -바덴-뷔르템베르그와 헤센을 중심으로-

변순용 ( Sun Yong Byun ) 한국초등도덕교육학회 2012 초등도덕교육 Vol.0 No.38

한국의 도덕교과에 대한 분석을 하는데 있어서 외국 사례를 살펴볼 필요가 있다. 이 연구에서는 독일에서 이뤄지고 있는 철학 및 도덕 교과의 실태를 내용구성이라는 측면에서 대표적인 바덴-뷔르템베르그 주와 헤센 주의 경우를 분석하고, 이를 토대로 한국의 도덕과 내용 구성에 있어서 관계 중심의 축과 내용 중심의 축을 근거로 해서 중심 내용 영역과 주변 내용 영역으로 구분하여 도덕 교과의 내용영역 구성을 제안한다. 그리고 주변 내용 영역 구성의 기준으로는 이슈중심의 선정 원칙과 자유로운 선택의 원칙을 제안하고자 한다. 이슈중심의 선정 원칙에서는 학생들이 직면하고 있는 도덕적인 문제가 무엇인지를 파악하고, 사회적으로도 중요한 것인지에 대한 고려가 있어야 한다. 자유로운 선택의 원칙에서는 학교급별, 지역별 특성을 고려해야 하고, 교육과정이나 교과서 개발자뿐만 아니라 교사들도 선택할 수 있는 제도적 장치를 마련하는 것이 중요하다. 이 두 원칙은 도덕과의 교육 내용을 구성하는데 상호 보완적인 역할을 할 것이다. 이러한 분석을 토대로 한국의 도덕교과의 내용 구성에 있어서도 새로운 축의 개발, 교과내용의 이원화, 교과내용 구성에 있어서의 자유의 원칙을 제안하고자 한다. It is necessary to look at foreign cases in order to study the subject "Moral" in Korea. This Study has focused on the construction of teaching materials in Germany, especially in Baden-Wuertemberg and Hessen. As a result, two axes of the relation and the contents are proposed. And there are another separation of core area and peripheral area. In the peripheral area there must be issues-oriented selection and free choice-oriented selection. In the principle of issues-oriented selection it is important to search out the present moral problems of students which have social important meaning. In the principle of free choice-oriented selection it must be considered the differences of levels of elementary, middle and high school. These two principles are in complementary relations. Through this analysis, it is necessary to develop the new axes, to divide two areas of teaching materials, to propose the principle of free choice in the construction of contents in the subject "Moral" in Korea.

〈雲水誌〉의 敍事 構造的 特性 硏究

곽정식(Kwak Jung-Sik),이재식(Lee Jae-Soon) 경성대학교 인문과학연구소 2008 인문학논총 Vol.13 No.2

본 연구는 조선조 후기의 장편국문소설인 〈운수지〉를 대상으로 서사 구조적 특성에 관해 논의하는 것을 목적으로 한다. 우선 〈운수지〉는 다양댄 서사 구조를 원용하고 서사의 편폭을 계속 확장하는 가운데서 서사의 중심축이 분화되는 것으로 나타나는데, 우선 도입부에서는 서사의 중심축이 宋나라 충신 岳飛를 중심으로 그의 가문에 놓여져 있다. 그러나 岳飛의 사후에 옥황상제에 의하여 충의지사들이 신선으로 인간 세상에 적강하는 것을 계기로 서사의 중심축은 9인의 충의지사의 가문으로 분화, 확대되고, 또 이로 인하여 9인의 충의지사들의 가문이 서로 대등한 비중을 지니게 된다. 또한 〈운수지〉에는 서사 전개상 중요한 사건으로서, 옥황상제에 의해 충의지사와 난신적자가 인간세상에 적강하거나 환생한다는 것, 그리고 원나라 과거에 장원급제하여 부마 간택을 받은 악문용이 大宋憤義將軍이라 자칭하고 문경천, 육봉일 등과 宋朝 中興의 뜻을 같이하게 된 것, 요·금에 이어 원나라를 정벌하고 마침내 송조를 중흥한 충의지사들이 천하를 吳王에게 맡기고 西湖에 은거하여 풍월주인으로 돌아간 것 등을 들 수 있는 데, 이와 같은 사건 전개를 위한 국면 전환이 오랜 시간에 걸쳐 여러 사건이 진행되는 가운데서 단계적, 점진적으로 이루어고 있는 바 이러한 단계적 서사 진행을 통해서 독자들에게 긴장감과 흥미를 유발하는 효과를 얻고 있다. 아울러 〈운수지〉에서는 충의지사와 난신적자라는 서로 대비되는 두 人物群을 설정하고, 이들의 덕성과 행적, 결말 등을 비교하는 한편, 몇 차례 관계의 역전을 거듭한 끝에 충의지사들이 최종적으로 승리를 거두는 결말을 통하여 忠節意識의 鼓吹와 같은 전통적인 주제를 효과적으로 그려놓았다. The purpose of this study is to research the narrative structural traits of 〈Unsoochi〉, a korean classical novel. I epitomize the subject matters which discussed in the upper parts as following. The first narrative structural trait is a specialization of the central axis. In the part of the introduction the central axis of the narrative is placed on Ak Bi's family. But in the part of the development the central axis of the narrative is specialized and magnificated along the nine familys who are men of loyalty and uprightness. The second narrative structural trait is the gradual development of the narrative. the important events in 〈Unsoochi〉 are the banishment of men of loyalty and uprightness, the stirring up to revive the Song Empire by men of loyalty and uprightness and enjoying to converse with nature. These events are combined to turnover the aspect of affairs in the narrative development, though these diversion is not accomplished once for all or rapidly, but step by step, gradually for a long time. and these gradual progress of the nan-ative arouse reader’s a state of tension and the interest. The last narrative structural trait is contradiction of characters and the relation-reversion. there are setted up two contradiction characters in 〈Unsoochi〉. though the author described effectively the traditional subjet matter by the triumph of men of loyalty and uprightness, comparing one with another in the moral character, the achievements and the death of two contradiction characters, and repeating several relation-reversion.

Exposed Column-Base Plate Connections Bending About Weak: II. Experimental Study

Dae-Yong Lee,Subhash C. Goel,Bozidar Stojadinovic 한국강구조학회 2008 International Journal of Steel Structures Vol.8 No.1

Four exposed-type column-base plate conection sub-asemblages (two for 6-bolt connection and two for 4-bolt conection)were tested under the SAC Phase II loading history in the direction of column weak axis. Mainly investigated in thisexperimental study were global cyclic performance of each test specimen and behavior of major conection elements underlarge column lateral displacements. Also examined were effects of diferent number of anchor bolt, diferent relative strengthone of the four specimens completed the applied entire loading history without significant strength degradation and formed aplastic hinge at the bottom of the column. The other thre specimens showed a limited ductility in the connection. Throughthe experimental study, the Drake and Elkin’s design method that was used for design of the test specimens was evaluated andseveral major findings from the numerical parametric study presented in the companion paper, which is published together,were verified.

사용자와 효율적인 대화방법을 갖는 관계형 테이블의 설계

장성식 ; 김용준 김천대학교 1995 김천대학교 논문집 Vol.16 No.-

The multimedia systems execute with synchronization of each media. We need for define and process of a time-relation of media. It is complicated when requst of interaction from user while presen- tation executed. And It is not process chang of information. Therefore, In this paper, We define a interaction of user and media presentation relationship and, develop a system of synchronization table and reference axis.

휴대폰 카메라 모듈의 조립공차 개선 시스템에 관한 연구

예인수(In-Soo Ye),정선환(Seon-Hwan Cheong),최성대(Seong-Dae Choi),현동훈(Dong-Hoon Hyun) 한국기계가공학회 2010 한국기계가공학회지 Vol.9 No.5

Tolerance analysis is one of the most important processes to improve the image quality of products. High resolution camera module for mobile phones needs precision assembly technology since the module becomes smaller and thinner. This paper will focus on the unit tolerance and the assembly tolerance which can affect the performance of the module. Lens shading and relative illumination were used to evaluate the optical axis scatter for each component on camera and estimate the assembly yield rate based on the evaluation result. A program was developed to analyze the impact on optical axis by each module, then to optimize the dimensions and tolerance for reducing the scatter of optical axis assembly. Through the simulation, though a rate of relative illumination was declined in where optical axis is displaced 100㎛ from sensor center, MTF performance is not influenced by increasing in optical axis displacement. It was seen that assembly yield was improved in result of simulation after correcting optical axis tolerance.

다축 힘/모멘트 센서 교정기의 개발 및 그의 불확도 평가

김갑순(Gab-Soon Kim),윤정원(Jungwon Yoon) Korean Society for Precision Engineering 2007 한국정밀공학회지 Vol.24 No.10

This paper describes the development of the calibration system for a multi-axis force/moment sensor and its uncertainty evaluation. This calibration system can generate the continuous forces(土Fx, 土Fy and 土Fz) and moments(土Mx, 土My and 土Mz). Many kinds of multi-axis force/moment sensors in industries should be carried out the characteristic test or the calibration with the calibration system that can generate the forces and the moments. The calibration systems have been already developed are the disadvantages of the low capacity, the generation of step forces(10N, 20N …) and step moments(1Nm, 2Nm …) with weights, the high coasts in manufacture and so on. In this paper, the calibration system for a multi-axis force/moment sensor that can generate the continuous three forces and three moments was developed. Their ranges are 0~2000N in all force-directions and 0~400Nm in all moment-directions. And the system was evaluated in the expanded relative uncertainty. They were 土0.0004 in all forces 土Fx, 土Fy and 土Fz, and 土0.0004 in all moments 土Mx, 土My and 土Mz.

다축 힘/모멘트 센서 교정기의 개발 및 불확도 평가

김갑순(Gab-Soon Kim),신희준(Hyi-Jun Shin),김현민(Hyeon-Min Kim) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11

This paper describes the development of multi-axis force/moment sensor calibration system and its uncertainty evaluation. This sensor, which has maximum capacities of 2000N in forces and 400Nm in moments, can generate the continuous forces (±Fx, ±Fy and ±Fz) and moments (±Mx, ±My and ±Mz.). In order to be used multi-axis force/moment sensors in many kinds of industries, they are carried out the characteristic test or the calibration with the system that can generate the forces and the moments. The developed calibrating systems are the disadvantages of the low capacity, the generation of step force and moment with weights, the high coasts in manufacture and so on. In this paper, the multi-axis force/moment sensor calibration system that can generate the continuous forces and moments was developed. Its maximum capacities are 2000N in forces and 400Nm in moments. And the system was evaluated in the expanded relative uncertainty. They were ±0.0004 in forces ±Fx , ±Fy, ±Fz, and ±0.0004 in moments ±Mx, ±My, ±Mz.

U.S.-Korean Relations Post September 11

C.S. Eliot Kang 인하대학교 국제관계연구소 2002 Pacific Focus Vol.17 No.2

The events of September 11, 2001 and the not‐too‐subtle style of the George W. Bush administration have introduced new uncertainties in U.S. security policy toward Korea. However, strategic considerations that have inclined successive U.S. administrations toward restraint and engagement with North Korea in the post‐Cold War period continue to operate and the Bush administration is not immune to these forces. That is, U.S. security policy toward Korea in the post‐Cold War period has been conditioned by an implicit strategy of husbanding U.S. primacy through a posture of reassurance toward potential great power competitors. No doubt, the Bush administration will continue to support the status quo on the Korean peninsula to reassure Japan and China that the United States is a “responsible hegemon.

U.S.-Korean Relations Post September 11

Kang, C.S. Eliot Center for International Studies, Inha University 2002 Pacific Focus Vol.17 No.2

The events of September 11, 2001 and the not­too­subtle style of the George W. Bush administration have introduced new uncertainties in U.S. security policy toward Korea. However, strategic considerations that have inclined successive U.S. administrations toward restraint and engagement with North Korea n the post­Cold War period continue to perate and the Bush administration is not immune to these forces. That is, U.S. security policy toward Korea in the post­Cold War period has been conditioned by an implicit strategy of husbanding U.S. primacy through a posture of reassurance toward potential great power competitors. No doubt, the Bush administration will continue to support the statue quo on the Korean peninsula to reassure Japan and China that the United States is a “responsible hegemon.”