IFC를 이용한 기본설계단계 철근배근의 표현

정종현(Jung, Jong-Hyun),김치경(Kim, Chee-Kyeong),이재철(Lee, Jae-Cheol),김지현(Kim, Ji-Hyun),김민수(Kim, Min-Soo) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.1

In recent years, BIM has been applied to many building projects. However, IFC, which is the core technology of data exchange in BIM, has not been used widely. In particular, IFC has almost never been used to represent rebars in RC structures. This is because the lack of understanding and utilization strategy for data model of IFC on rebars. The purpose of this study is to store and manage the data on rebars using IFC at the schematic design stage. For this, we investigated the data to represent rebars for RC members, such as beam, column, wall, and slab at the schematic design stage. And, we analyzed the data model of IFC on rebars at the schematic design stage. Based on these investigation and analysis on data, we proposed the strategy for utilization of the data model of IFC on rebars. Finally, for verification, we generated a sample IFC file to represent the rebars of a simple RC structure according to the proposed strategy and imported the sample IFC file into the software, which we developed for this study. Based on the results of the import, we concluded that the data on rebars can be stored and managed using the proposed strategy for utilization of the data model of IFC on rebars.

온라인 한국어 교육과정 개발을 위한 기초 연구

한상미 ( Sang Mee Han ),김제열 ( Je Yeol Kim ),전지인 ( Jee In Chun ),이수민 ( Su Min Lee ),최유경 ( Yoo Kyung Choi ),김종인 ( Jong In Kim ),김성진 ( Seong Jin Kim ),김지현 ( Chee Hyun Kim ),김미혜 ( Mi Hye Kim ),김지원 ( Ji Won K 연세대학교 언어연구교육원 한국어학당 2012 외국어로서의 한국어교육 Vol.37 No.-

A Research on the development of the online Korean Curriculum. Teaching Korean as a Foreign Language, 37, 411~448. This is a research on the development of the online Korean curriculum of the Korean Language Institute(KLI), Yonsei University, focusing on the educational contents comprising the KLI online Korean program and the principle of LMS development. In chapter two, we examined the concepts of e-learning, e-learning 2.0 and smart-learning, and the characteristics of e-learning activities. In chapter three, the principles of developing online contents for Korean language education were investigated by holistically examining the content composition along with a model unit. In chapter four, the principles of LMS development were demonstrated and plans for program implementation were suggested. Finally, in chapter five, we summarized our study and established and explained its significance.

IFC를 이용한 기본설계단계 철근배근의 표현

정종현,김치경,이재철,김지현,김민수,Jung, Jong-Hyun,Kim, Chee-Kyeong,Lee, Jae-Cheol,Kim, Ji-Hyun,Kim, Min-Soo 대한건축학회 2012 대한건축학회논문집 Vol.28 No.1

In recent years, BIM has been applied to many building projects. However, IFC, which is the core technology of data exchange in BIM, has not been used widely. In particular, IFC has almost never been used to represent rebars in RC structures. This is because the lack of understanding and utilization strategy for data model of IFC on rebars. The purpose of this study is to store and manage the data on rebars using IFC at the schematic design stage. For this, we investigated the data to represent rebars for RC members, such as beam, column, wall, and slab at the schematic design stage. And, we analyzed the data model of IFC on rebars at the schematic design stage. Based on these investigation and analysis on data, we proposed the strategy for utilization of the data model of IFC on rebars. Finally, for verification, we generated a sample IFC file to represent the rebars of a simple RC structure according to the proposed strategy and imported the sample IFC file into the software, which we developed for this study. Based on the results of the import, we concluded that the data on rebars can be stored and managed using the proposed strategy for utilization of the data model of IFC on rebars.

IFC를 이용한 건축강구조 표준접합상세의 표현

이재철(Lee, Jae-Cheol),정종현(Jung, Jong-Hyun),김치경(Kim, Chee-Kyeong),김지현(Kim, Ji-Hyun),김민수(Kim, Min-Soo) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.7

BIM is one of the most promising developments in the AEC industries and some building projects are in progress with BIM. For progressing the projects with BIM, data exchange is most important and IFC is the core technology for it. But, IFC is not used widely in structural engineering for standard steel connections. This results from the lack of understanding on IFC data model, and deficiency of properties for representation of standard steel connections. The purpose of this paper is to store and manage the data using IFC, and propose the new property sets for standard steel connections. For this, we investigated the method and data model of IFC to represent the standard steel connections, such as column-beam connection, beam splice, column splice, and girder-beam connection. Based on these investigation, we proposed the new property sets for utilization of the IFC data model on standard steel connections. Then, we generated sample IFC files in which the data on standard steel connections according to the proposed new property sets. Finally, we developed the application program to verify the reasonability of the proposed new property sets. As a results, we concluded that the data on standard steel connections can be stored and managed sufficiently by using the IFC data model and proposed new property sets.

의사소통 능력 향상을 위한 한국어 초급 표현 교재 개발의 원리와 실제 -‘새 연세한국어 말하기와 쓰기 2’를 중심으로-

정여훈 ( Jeong,Yeohoon ),이계윤 ( Lee,Kye Yun ),유승희 ( You,Seung Hee ),김지현 ( Kim,Chee Hyun ),박민진 ( Park,Minjin ),장선희 ( Jang,Sunhee ) 연세대학교 언어연구교육원 한국어학당 2020 외국어로서의 한국어교육 Vol.56 No.-

본고에서는 통합형 교재의 한계를 극복하기 위한 하나의 시도로서 개발된 기능 분리형 교재 ‘새 연세한국어 말하기와 쓰기 2’의 개발 절차와 원리에 대해 살펴보았다. 이를 위해 2장에서는 한국어 표현 교재 관련 앞선 연구들과 기존 한국어 교재들을 분석하였고, 3장과 4장에서는 ‘새 연세한국어 말하기와 쓰기 2’의 개발 절차 및 원리를 이론적 배경과 함께 구체적으로 기술하고 그 특징을 예시와 함께 기술하였다. 본고에서 개발 원리를 밝힌 ‘새 연세한국어 말하기와 쓰기 2’는 어휘와 문법을 기계적으로 연습하기보다 실제적인 담화 상황에서 의사소통 목적을 달성할 수 있도록 하는 데에 도움을 주는 방향으로 개발되었다는 점에서 의의를 찾을 수 있을 것이다. The purpose of this study is to examine the principles and practices of ‘New Yonsei Korean Speaking and Writing 2’, which was developed to improve the expressive language skills for the elementary-level KFL learners. The development principles of ‘New Yonsei Korean Speaking and Writing 2’ can be described as follows. First, this textbook is a theme-based and communication-driven textbook. Second, this textbook was developed to include various real-life discourse situations and text functions. It also presented the structures of discourse(dialogues and texts) so that the learners can not only practice vocabulary or grammar on a sentence-by-case basis, but also learn the structures of the Native Korean Speakers' discourse. Lastly, ‘New Yonsei Korean Speaking and Writing 2’ was developed in such a way that various language functions can be practiced collectively to improve the expressive language skills, speaking and writing, instead of practicing language skills separately.

에어컨 냉각 팬용 브러쉬레스 DC 전동기의 역기전력 분석에 대한 연구

조정현,김지현,정정원,황흥식,이치우 경성대학교 공학기술연구소 2012 공학기술연구지 Vol.18 No.-

Compared to conventional dc motors having the combination of commutators and brushes, a brushless DC (BLDC) motor is one of the highly efficient motors due to its electrical commutation without a brush, and this feature allows the BLDC otor to be more suitable for an application requiring no maintenance due to mechanical wear between a commutator and a brush. Also, the BLDC motor has a few benefits over both a dc motor and an induction motor such as high dynamic response, high efficiency, logn life span, and low noise in wide speed-torque region. This paper investigates the variation of voltage induced in phase windings in a BLDC motor in several cases with respect to stack length, steel grade, and coil material. This study is numerically conducted and it is verified from the theoritical point of view by comparing the result of simulation with that of experimental measurement.