• Proceedings of the Korea Contents Association Conference
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• 2012.05a
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• pp.253-254
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• 2012

한국과학기술정보연구원(KISTI)에서 운영하고 있는 국가과학기술정보센터(National Discovery for Science Leaders)에서는 논문, 특허, 연구보고서, 표준 등에 대한 원문제공서비스(Document Delivery Service)를 수행하고 있는데, 본 연구에서는 이러한 원문제공서비스를 다른 기관의 홈페이지를 통해 공동 활용할 수 있도록 OpenAPI를 설계하고 구현하였다.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 1998.11a
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• pp.69-73
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• 1998

본 논문은 공동주택의 간선설계에서 단계적으로 굵기가 다른 일단 급전방식과 균일하게 부하가 분포되어 있는 방식을 실제 사례를 통하여 비교·분석한 것이다. 그 결과 후자의 방식이 즉 지하층에서 지상층까지 같은 굵기로 시설하는 방식이 경제적임을 알 수 있었다. 현재 사용되는 방식은 전압에 따른 상수를 적용하므로 전선의 종류에 따른 전압강하가 변하지 않는 문제를 가지고 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.535-537
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• 2022

AI 가속기는 머신 러닝 및 딥 러닝을 포함한 인공 지능 및 기계 학습 응용 프로그램의 연산을 더 빠르게 수행하도록 설계된 일종의 하드웨어 가속기 또는 컴퓨터 시스템이다. 가속기를 설계하기 위해선 설계 영역 탐색(Design Space Exploration)을 하여야 하고 여러 인공지능 중에서도 합성 곱 신경망(CNN)에 대한 설계 영역 탐색을 소개한다.

• The Transactions of the Korea Information Processing Society
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• v.5 no.3
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• pp.606-619
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• 1998

In this paper, we have tfesigned and ihlplemented ACE(Application sharing Collaboration Engine) which is pessible an application sharing to collaborate among peoples who are geographically dispersed. The application sharing is a technology whereby two or more users collaborate to share the output of single application running on one computer system to the other users, and to provide input to the applications. We defined ASO(Applicatio!1 Sharing Object) object and its behavior to share applications in real time and ACE processes a sharing using ASO object among the distributed systems. ASO is classified into activateASO, updateASO, inputASO, and controlASO. The each ASO's behavior involves both events which occur at specific moments such as keystrokes and mouse clicks and more persistent status which can be observed at any time such as the image on the screen. The implemented ACE can be applied to the data conferencing, distance education, and project collaboration for engineer in distributed environments.

• Journal of Korea Multimedia Society
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• v.8 no.7
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• pp.1012-1021
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• 2005

This paper describes the design and implementation of an efficient multi-point multimedia conference system using IP grouping. Existing multi-point multimedia conference systems are difficult for multi-user to perform efficient cooperation due to bandwidth limitation for data transmission of video, audio and documentation. In the case that multi-user uses limited bandwidth, smooth cooperation does not accomplish due to transmission delay for the real-time transmission of image and speech data. A hybrid transfer method which is mixed with distributed and centralized methods is used for smooth cooperation, and the network bandwidth is reduced by forming multi-user conference systems of IP grouping in this paper. Also, adaptive image frame variations are used to solve bottleneck effect according to the number of users. An efficient multi-user conference system is designed to support audio quality.

• Journal of KIISE:Computer Systems and Theory
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• v.28 no.12
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• pp.642-652
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• 2001

Recently, the advent of World-Wide-Web(WWW) and the explosive popularity of the Internet gave birth to collaborative applications which were enabled by computers and networks as their primary media. The progress of 3D computer graphics enabled collaborative application with 3D virtual environments or distributed virtual environments. In this paper, we explain our implementation of the Share collaboration engine which is for collaboration applications based on a distributed virtual environment. We introduce Virtual Architectural Engineering 2000 (VAE2000) that is our pilot application implemented with the Share collaboration engine. The Share collaboration engine proposes a new Share network architecture for management of participants, and it provides some synchronization methods for 3D objects in virtual collaboration. VAE2000 is an experimental application that tries to prevent wastes of human, material and time resources in networked virtual collaboration.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.1
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• pp.454-463
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• 2013

Upon changing architectural education system into 5-year program, the design studio in university should meet the requirement in order to acquire the accredition. This study investigates on student' perceptions and responses, according to the configuration(open, mixed, closed), to their studio environment. Results and suggestions are as follows for all types: First, there should be space for individual activities for the student: Second, excluding space for excluding space for the individual work, seperated area must be provided for co-operative work, such as making models; Third, a clear territorial distintion between the individual and the co-work space should be able to set by the students, using. for instance, movable partition or corridor; Fourth, however, in line with the types, a seperated lecture or seminar room in the open type, a device to prevent distraction such as noise in the mixed type, and more space for co-work in the closed type are also suggested.

• The Mathematical Education
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• v.58 no.2
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• pp.299-317
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• 2019

In this study, we analyzed the change of teacher knowledge through task design in the teacher-researcher community focused on knowledge of students in the area of derivatives application. The following subjects were studied. First, we have analyzed the focus of the discussion related to teacher knowledge of students within the teacher-researcher community. Second, we have analyzed the change of teacher knowledge of students according to the focus. The results of this study are as follows. First, community member' different knowledge of students led the discussion on the task solving paths. The main focus of the discussion was the possibility in inducing responses and motivation. Second, the process of reviewing and evaluating task solving paths and reaching consensus led the improvement of teacher knowledge. Teachers and researchers led changes of teacher knowledge by sharing the knowledge based on previous research and experience, respectively. This ultimately shows the necessity of co-learning between teachers and researchers in teacher education.

• KOREAN POULTRY JOURNAL
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• v.6 no.3 s.53
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• pp.99-103
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• 1974

우리나라에서도 축산물의 유통과정에서 생기는 생산자와 소비자간의 유통마진은 너무나 커서 생산자는 생산원가에 미달되는 가격으로 축산물을 출하하게 되고 소비자는 비싼 가격으로 축산물을 소비하게 되는 것이다. 돼지에 있어서도 생산단계를 충분히 고려하여 유리한 방법을 선택하는 한 방법으로 공동 출하하는 방법이 있는데 돼지를 공동 출하하면 (1)전문적인 사양계획 (2)돼지위생 및 방역 소독문제 (3)시설과 도구의 설계 (4)확실하고 유익한 번식육종 계획 (5)시판계획 (6)기술협조계획에 있어 서로 상승작용을 하여 다른 경제에도 적응할 수 있게 될 것이다.

• Proceedings of the Korean Nuclear Society Conference
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• 1997.05a
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• pp.342-349
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• 1997

국내 원자력발전소의 참조격인 영광 3ㆍ4호기의 RCP를 1/10으로 축소한 모델펌프를 설계ㆍ제작하여 상온, 대기압에서 단상류 펌프특성과 포화상태 근방에서 공동현상 시발 과냉각온도($\Delta$T$_{sub}$ ) 실험을 수행하였다. 단상류 특성은 RCP와 유사하였고, 공동현상 시발 $\Delta$T$_{sub}$ 는 0~5$^{\circ}C$였으며, 압력에 따라 민감하였다. 공동현상의 무차원 변수는 Ca=(equation omitted)로 정의된다. 단상류 펌프특성과 이상류 펌프특성간의 상관관계인 수두손실비 H$^{*}$ (equation omitted)를 기포율($\alpha$)와 유량계수(ø)의 함수로 나타낼 수 있을 것이다.