• 한국도서관정보학회지
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• 제44권4호
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• pp.465-489
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• 2013

본 연구는 국가도서관의 현재 자원들을 정보적, 인적, 공간적 차원에서 살펴보고, 이를 기반으로 향후 협력사업의 정책적 과제와 방향성을 제시하는데 목적이 있다. 이를 위하여 외국 사례, 국가도서관관련 법령과 국가정책, 관종별 도서관협력과 국회도서관의 자원별 대외협력사업의 사례들을 분석하였다. 사례분석을 통해 국가도서관 협력사업의 미래방향으로 가치개발, 특화콘텐츠확보, 해외네트워크 리더십확보 등 세 가지 정책방향성을 제안하였다.

• Structural Engineering and Mechanics
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• 제68권4호
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• pp.423-442
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• 2018

In this paper, masonry infilled reinforced concrete (RC) frames are analyzed through a probabilistic approach. A macro-modeling technique, based on an equivalent diagonal pin-jointed strut, has been resorted to for modelling the stiffening contribution of the masonry panels. Since it is quite difficult to decide which mechanical characteristics to assume for the diagonal struts in such simplified model, the strut width is here considered as a random variable, whose stochastic characterization stems from a wide set of empirical expressions proposed in the literature. The stochastic analysis of the masonry infilled RC frame is conducted via the Probabilistic Transformation Method by employing a set of space transformation laws of random vectors to determine the probability density function (PDF) of the system response in a direct manner. The knowledge of the PDF of a set of response indicators, including displacements, bending moments, shear forces, interstory drifts, opens an interesting discussion about the influence of the uncertainty of the masonry infills and the resulting implications in a design process.

• 한국콘텐츠학회논문지
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• 제9권2호
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• pp.462-470
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• 2009

학습 공간의 확대로 원격교육은 교수 학습 방법의 주요 흐름의 하나로서 자리잡았고 이를 지원하기 위한 다양한 매체, 기술 및 전략 등에 관한 연구가 지속적으로 이루어지고 있다. 하지만 대부분의 원격교육시스템은 교수자나 학습자에게 일정 수준 이상의 기술적 소양과 경제적 부담을 요구한다. 또한 이러한 문제점을 해소하기 위한 학교 현장에서의 간소화된 웹 기반 원격교육시스템은 학습자 행동을 파악하기 어렵게 하는 단점이 있다. 이에 본 연구에서는 시스템의 구축 및 운영에 필요한 부담을 제거하고 원격학습 환경에서 학습자의 지식 상태에 의존하여 개별화 학습이 가능한 개별적 발문에 기반한 동적 원격교육시스템을 개발하고 그 효과성을 검증하였다.

• 한국대기환경학회지
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• 제28권2호
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• pp.159-171
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• 2012

Aerosol direct radiative forcing (ADRF) retrieval method was developed by combining data from passive and active satellite sensors. Aerosol optical thickness (AOT) retrieved form the Moderate Resolution Imaging Spectroradiometer (MODIS) as a passive visible sensor and aerosol vertical profile from to the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) as an active laser sensor were investigated an application possibility. Especially, space-born Light Detection and Ranging (Lidar) observation provides a specific knowledge of the optical properties of atmospheric aerosols with spatial, temporal, vertical, and spectral resolutions. On the basis of extensive radiative transfer modeling, it is demonstrated that the use of the aerosol vertical profiles is sensitive to the estimation of ADRF. Throughout the investigation of relationship between aerosol height and ADRF, mean change rates of ADRF per increasing of 1 km aerosol height are smaller at surface than top-of-atmosphere (TOA). As a case study, satellite data for the Asian dust day of March 31, 2007 were used to estimate ADRF. Resulting ADRF values were compared with those retrieved independently from MODIS only data. The absolute difference values are 1.27% at surface level and 4.73% at top of atmosphere (TOA).

• 한국정보처리학회논문지
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• 제4권5호
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• pp.1289-1296
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• 1997

인공지능 시스템에서 지식 베이스 시스템을 구축하기 위해서는 적절한 퍼지 규칙을 선택하는 것이 중요한 문제이다. 본 논문에서는 패턴 식별을 위하여 퍼지 소속함수 데이터로부터 직접 퍼지 규칙을 추출하는 새로운 방법을 제안하였다. 퍼지 영역역변수를 가진 퍼지 격자에 의해 퍼지공간을 분활하여 각 일부분의 공간을 퍼지 규칙으로 정의했다. 이들 규칙은 소속함수로부터 추출된다. 그때 규칙에 대한 최적의 인력변수는 기준에 의해서 추출된 수를 사용하여 결정된다. 본 논문에서 제안한 방법은 ixbibuchi가 사용한 신경망과 비교하고, 이 방법의 유효성을 보이기 위해서 시물레이션결과를 보였다.

• KIEAE Journal
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• 제15권2호
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• pp.79-86
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• 2015

Purpose: The concept of the tectonic has researched to find out the identify of modern architecture. The meaning of traditional tectonic knowledge to emphasize structural joints and attention to detail in creativity has developed in various ways in contemporary architecture. The purpose of this study is to analyze the tectonic characteristics and architectural expressions of the light appeared in the works of Santiago Calatrava. Major features in his works could be found is to maximize structural beauties through deducing the architectural images from the nature and expressing the material properties and the kinetic structures, and thus, to ultimately create the functional space and form by connecting the light to the tectonic structure. Method: Accordingly, I tried to analyze the three works of Santiago Calatrava (the Milwaukee Art Museum, the Bodegas Ysios Winery and the City and Arts and Sciences) as following categories - the structural aesthetics, the expression of material properties, the relationship between he kinetic structures and the light. Result: According to the results of the study, Santiago Calatrava tried to create his own architectural aesthetic by combining structural tectonic with nature, material, regional place and culture. He also sought to express the tense and dynamic tectonic rather than the stable one in his works.

• KIEAE Journal
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• 제8권3호
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• pp.51-59
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• 2008

response to the global city. It was developed to cope with the decline of the manufacturing industry, a rise in unemployment and a welfare state system in danger. In cities of the concept, there has been much change in existing urban space and accordingly wisdoms and knowledge has been accumulated. The purpose of this research is to scrutinize urban spatial modification of a regenerated model city "Bologna". The target area of analysis was a ex-factory ailing district. Field site visit, deep interview with professionals and citizens, walk through observation, and historial literature review on the site were employed. As results, its history, retrofit process and current change were systematically described. The results showed ways of thinking, attitude toward historic preservation, technology, and creativity of using existing buildings for contemporary functions. This has a significant implication on Korean urban development which mostly, has ignored the existing value of community and buildings.

• KIEE International Transactions on Power Engineering
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• 제4A권1호
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• pp.33-41
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• 2004

Knowledge of partial discharge (PD) is important to accurately diagnose and predict the condition of insulation. The PD phenomenon is highly complex and seems to be random in its occurrence. This paper indicates the possible use of chaos theory for the recognition and distinction concerning PD signals. Chaos refers to a state where the predictive abilities of a systems future are lost and the system is rendered aperiodic. The analysis of PD using deterministic chaos comprises of the study of the basic system dynamics of the PD phenomenon. This involves the construction of the PD attractor in state space. The simulation results show that the variance of an orthogonal axis in an attractor of chaos theory increases according to the magnitude and the number of PDs. However, it is difficult to clearly identify the characteristics of the PDs. Thus, we calculated the magnitude on an orthogonal axis in an attractor using singular value decomposition (SVD) and principal component analysis (PCA) to extract the numerical characteristics. In this paper, we proposed the condition monitoring method for gas insulated switchgear (GIS) using SVD for efficient calculation of the variance. Thousands of simulations have proven the accuracy and effectiveness of the proposed algorithm.

• 한국도서관정보학회지
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• 제46권4호
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• pp.1-20
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• 2015

이 연구는 문화기반시설인 공공도서관의 지역문화발전 기여전략을 제시하는데 목적이 있다, 이를 위하여 먼저 공공도서관이 수행하는 업무와 지역문화발전의 상의적 수수관계를 바탕으로 기여도를 평가하고 한계를 적시하였다. 이어 공공도서관과 밀접한 지역문화를 지식문화, 독서문화, 학습문화, 대중문화, 여가문화로 구분하고 이들의 발전과 진흥을 위한 공공도서관의 기여전략(장서개발과 이용서비스 중심의 핵심역량 제고, 디지털 정보해득력 교육 지원기능 강화, 독서생활화를 위한 독서촉진과 저변확대, 평생학습(문화)프로그램 제공서비스의 최적화, 시설 공간의 개방화 및 친숙성 증대, 지역 유관기관과의 연계 협력사업 확대)을 제안하였다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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• pp.39-41
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• 2004

This paper demonstrates the in-house development of the subsystem C&DH in a D-SAT satellite project of Astronautic Technology (M) Sdn. Bhd. (ATSB). D-SAT is a non-imaging satellite. It will carry a dosimeter as the payload for scientific objectives. Since one of the D-SAT project establishment intended objectives is to demonstrate the research and development skill of the ATSB engineers on the satellite system building, most of the subsystems of the D-SAT are developed in-house including the C&DH subsystem. C&DH subsystem plays an important role for managing data handling tasks and general operation of the satellite system. The C&DH development includes the research and study on the hardware and software design, the design of both the hardware and software, the development of the software system, the integration between the software and the hardware system and the implementation of the subsystem into the satellite system. This program allows ATSB to accomplish the engineers with expertise not only in the C&DH subsystem but other subsystems too besides developing knowledge in the management of a space project that covers not only on the technical issues but issues relating to the economic, political and legal issues.