• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.236-240
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• 2015

The accelerating adoption of BIM (Building Information Modeling) is challenging collaboration practices established in the construction industry. The implementation of BIM involves changes in participants work, organization, processes and collaboration methods. Therefore there is a need to be able to measure effectively and accurately collaboration, in order to analyze and determine current practices and their performances in organizations (company, team project) as well as changes required. Previous researches scope from evaluating BIM maturity of an organization to BIM collaboration requirements but lack of proper tools and methods to analyze collaboration performances. This is especially true when it comes to evaluate the efficiency and collaboration performances of processes rather than systems or organizations. Thus this research aims to analyze systematically and comprehensively previous researches proposing diversified methods to evaluate BIM performances and collaboration. Furthermore it aims to suggest key indicators to evaluate collaboration performances of processes and project organizations. This research may contribute to better understanding of collaboration performances within organizations using BIM and further development of evaluation method for analyzing BIM design project.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1995년도 추계학술대회 논문집 학회본부
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• pp.465-468
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• 1995

The gas-insulated switchgear(GIS) has made high-reliability, high-safety, compact substations possible by using $SF_6$ gas. They are likely to be further developed toward higher voltages and targer capacities, along with greater compactness and lower cost. Although $SF_6$ gas has excellent insulation performance, breakdown voltages are reduced by the conducting particles. Thus, extensive studies have been made on the breakdown characteristics of $SF_6$ gas in particle contaminated conditions. Experiments were carried out for fired particle and free particle in a coaxial electrode system with DC and AC voltages. This paper represents the experimental results of the processes involved in electrical breakdown in compressed $SF_6$ gas, where breakdown is initiated by conducting particles.

• 한국실내디자인학회논문집
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• 제13권6호
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• pp.29-38
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• 2004

The purpose of this study is to provide design guidelines on office layouts to improve workers' concentration and communication behavior while supporting work processes. Among the present office types, benzene-type was preferred the most was providing better concentration. Regarding communication, link and benzene were preferred types. In present office types, workers were satisfied in communication more than concentration. To increase concentration level, acoustical privacy was indicated as the most important factor In conclusion, to support both concentration and communication in office, the team area should be divided into smaller sub-team areas. The sub-team areas may support interaction within a group while preventing unnecessary distraction. The major circulation of work process should be formed outside of the sub-team areas to provide concentration within the groups.

• Journal of the Optical Society of Korea
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• 제11권3호
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• pp.85-92
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• 2007

In the past, precision optical glass lenses were produced through multiple processes such as grinding and polishing, but mass production of aspheric glass lenses requiring high accuracy and having complex profile was rather difficult. In such a background, the high-precision optical glass molding pressing (GMP) process was developed with an eye to mass production of precision optical glass parts by molding press. In this paper, as a fundamental research to develop the multi-cavity mold for higher productivity of a progressive GMP process used in the fabrication of an aspheric glass lens, an aspheric glass lens forming simulation was carried out.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.396-398
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• 2003

Recently as users' requests for geographic information systems are being more various, several new functions are being added to existing geographic information systems. One of them is linkage of spatial geographic data and video / image data to offer more realistic information of geographic objects to users. Geographic information systems implementing this function are called video geographic information system. In this paper, we design and implement a video geographic information system for providing map data, video data and link information of them to web applications. We 1) design system architecture of a video geographic information system, 2) analyze some processes to construct link information of map data and video data, 3) design database schema to store map data, video data, and link information, and 4) design some XML/GML schema used to query and retrieve these data for web applications.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.1131-1133
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• 2003

Spatial image processing software requires various user interactions to make a plan, prepare necessary data such as images, vectors, ancillary data and user-defined data, execute functions according to pre-defined procedures, analyze and store the results. In this manner, overall processes are controlled by user interactions. In this paper, we propose visual modeler which has the automated spatial image processing technique to minimize user interactions and re -use repeatable procedure. The proposed visual modeler is designed to use inter-operable components proposed by OpenGIS consortium as well as conventional COM components.

• 한국수학사학회지
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• 제30권2호
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• pp.121-133
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• 2017

In the present study, we investigate and compare the International Mathematical Olympiad participation histories of Korea, China, and Japan. Especially, the processes for the first participation of the IMO, trends in team rankings of the IMO, and national team selection systems and education systems are compared. And we investigate and compare the policies for the talented girls mathematics Olympians. Several proposals are suggested for development of Korean Mathematical Olympiad and participations to IMO.

• 한국컴퓨터정보학회논문지
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• 제14권4호
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• pp.171-178
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• 2009

최근 대규모 비즈니스 시스템을 효율적으로 운영하고 자동화하기 위해 기법으로 BPM과 SOA의 융합이 제안되고 있으며 운영데이터로부터 매일 의미 있는 정보를 생성할 필요성이 증가하고 있다. 본 논문에서는 BPM-SOA 융합을 통해 비즈니스 프로세스 자동화 방법론을 제시하고 실제 프로젝트 관리 비즈니스 프로세스를 구현하여 검증한다. BPM-SOA 융합은 약 결합된 시스템 구조를 통해 향상된 확장성과 생산성을 제공하며 잦은 변경과 프로세스 재사용에도 장점이 있다. 그 다음, 기존 시스템에 새로운 비즈니스 프로세스가 추가될 때 시스템의 확장성을 분석한다. 마지막으로 의사결정을 지원하기 위한 SAP 비즈니스 인텔리젼스를 이용하여 BPM에서 생성된 데이터를 분석한다. 비즈니스 인텔리젼스는 의사결정에 유용한 정보를 제공할 뿐만 아니라 비즈니스 프로세스 최적화 기회를 제공한다.

• 자원리싸이클링
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• 제21권2호
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• pp.3-8
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• 2012

유한자원의 순환활용과 환경보전 관점에서 도시광석으로부터 산업원료로 재사용될 수 있는 금, 은, 팔라듐 및 구리, 주석, 니켈, 코발트, 리튬 등 유용금속의 회수는 매우 중요하다. 현재까지 도시광석으로부터 유용금속을 회수하기 위한 많은 공정이 개발되었으며, 그 중 일부는 상업적으로 가동되고 있다. 본 논문에서는 문헌을 통하여 조사된 도시광석으로부터 산업원료로 사용되는 유용금속을 재생하기 위하여 개발된 중요한 건식공정들을 간략히 소개하고자 한다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1999년도 하계학술대회 논문집 F
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• pp.2578-2580
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• 1999

In this paper, an embedded micro processor based resistance spot welding controller is introduced which has been recently developed by Hyosung Co. Ltd. The performance of rapid and constant high current control is tested experimentally. This paper shows configurations of measuring system for high current and realtime RMS conversion techniques of sampled discrete data. A digital proportional control is adopted for this system and the result shows that this new product is working well at wide range of welding current and the performance is improved compared with some other commercially available controllers that are widely used in our industries. User friendly MMI system and a computer network system to monitor each welding processes are also presented.