• Journal of Korean Library and Information Science Society
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• 제36권1호
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• pp.371-414
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• 2005

This paper aims to suggest new strategies for operating school library digital resource room by analyzing the current states of 349 school library digital resource room and its educational effects. The project for school library digital resource room provided the foundations for the various informational and educational services : extended information materials, changes in library environment, collecting information through the web sites, providing authentic materials, reading instruction, library assisted instruction (LAI). The suggestions are as follows. 1) The national standards is required for the digital resources room in school libraries. 2) Reading and information literacy instruction should be institutionalized. 3) Library assisted instruction (LAI) should be included in school curriculum. 4) Professionally qualified teacher librarians are required for planning and managing the school library. 5) School library in-service program is needed for all members of the school community.

• Proceedings of the Korean Magnestics Society Conference
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• 한국자기학회 2004년도 하계학술연구발표회 논문개요집
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• pp.12-12
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• 2004

• Proceedings of the Korean Society of Precision Engineering Conference
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• 한국정밀공학회 2006년도 추계학술대회 논문집
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• pp.619-620
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• 2006

• Journal of the Korean housing association
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• 제18권3호
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• pp.19-29
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• 2007

This study is aimed at interpreting into changes and characters of function applied into quantative analysis in ubiquitous house. Digital technology being introduced into architectural fields, It applied expansively from design and construction to user's convenience. The application of digital technology is presented to various change like effectiveness and exactness in design and function of space, which is overlayed digital space to physical space beyond the extent of receiving human needs in physical space. In ubiquitous house, digital technologies are supplied to function coordinated with life, appreciating into positional informations of human and materials, spatial informations. Ubiquitous house is comparably effective into funtional expansion, user's convenience, safty, which, for the future, is going to using on housing of high performance encouraging the application of advanced technology. Therefore this study is classified into human behaviors, functions, performances and characters of digital system in ubiquitous house, which being established into the relation of elements, is interpreted numerically into functional changes and charats being applied to ARM.

• Korean Institute of Interior Design Journal
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• 제15권4호
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• pp.46-54
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• 2006

The present study examined Marcos Novak, a digital architect who has researched digital architecture and produced related works since the early 1990s. Starting from digital ideas originating from science and mathematics, he pursued 'trans architecture' based on the concept of 'architecture beyond the boundary of architecture' and 'architecture as invisible foundation.' His concept of 'trans architecture' is considered an important viewpoint in expressing the architecture of a diversified and hybridized age like today. The objective of this study was to understand the concepts of Allobio and Eversion, which are important digital terms forming the background of Novak's trans architecture, and to analyze architecture philosophy and architecture design concepts observed in his works through Novak's digital terminology centering on the concept of trans architecture pursued by him. Through this, we purposed to analyze the concept of architectural space, methods of form creation and the characteristics of trans architecture space, which were unique to Novak, the leader of digital architecture, and ultimately to provide basic materials on Novak. Novak's trans architecture represents digital architecture in the contemporary diversified and hybridized age, and his works involve various different digital elements and ideas, scientific paradigms, mathematic algorithms, 4 dimensional geometry, etc. In this sense, he is regarded as a prominent leading advocate of digital architecture.

• International Journal of Concrete Structures and Materials
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• 제10권2호
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• pp.189-203
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• 2016

This paper investigates on the use of advanced optical measurement methods, i.e. 3D coordinate measurement machines (3D CMM) and stereo-vision digital image correlation (3D DIC), for the mechanical analysis of shear deficient prestressed concrete members. Firstly, the experimental program is elaborated. Secondly, the working principle, experimental setup and corresponding accuracy and precision of the considered optical measurement techniques are reported. A novel way to apply synthesised strain sensor patterns for DIC is introduced. Thirdly, the experimental results are reported and an analysis is made of the structural behaviour based on the gathered experimental data. Both techniques yielded useful and complete data in comparison to traditional mechanical measurement techniques and allowed for the assessment of the mechanical behaviour of the reported test specimens. The identified structural behaviour presented in this paper can be used to optimize design procedure for shear-critical structural concrete members.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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• pp.799-802
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• 2002

For purer images in plasma display panel, a new dielectric compositions containing neodymium oxide were studied. In the present study, Pb-based compositions were used as mother glasses (PbO-$B_2O_3-SiO_2Nd_2O_3$) and thermal, dielectric, and optical properties were measured. As a result the new dielectric with a rare-earth oxide made selectively visible light penetrated and showed especially noticeable absorption properties at 585 nm that is surely related to the erroneous gas from Ne discharge. Thus, this light purple colored glass composition will help PDP to come true to get better imaging process.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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• pp.1076-1078
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• 2004

In this paper, we report $Eu^{2+}$ activated green phosphor $Ba_2CaMgSi_2O_8:Eu^{2+}$. This phosphor absorbs ultroviolet radation and emits a green visible light. The phosphors were synthesized by conventional solid state reaction method. Reagent grade $BaCO_3$, $CaCO_3$, MgO, $SiO_2$, $Eu_2O_3$ were used as raw materials. The raw materials were mixed thoroughly with an appropriate amount of ethanol in an agate mortar and then dried at 90 $^{\circ}C$ for 2 hours. The mixture was sintered at 900 $^{\circ}C$ for 2 hours and reheated at the mild reducing atmosphere 5% $H_2$ gas mixed with 95% $N_2$ gas at about 900 $^{\circ}C$ to 1250 $^{\circ}C$ for 2 hours. The photoluminescence spectra of the phosphor powders were measured by a fluorescent spectrophotometer. The crystal structure of phosphor powders were investigated by X-ray diffractometer.

• Journal of Korean Library and Information Science Society
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• 제27권
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• pp.61-95
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• 1997

The purpose of this paper is to overview a recent dispute of the library of the 21st century in Korea and to suggest a desirable model of the future library. There are two visions of the future of library. The first is an access based library model(digital library) emphasizing the digital resources that are networked and browsable electronically. The second is an ownership-based library model(paper library) which emphasize the use of traditional print collections stored locally and physically browsable. A points of dispute between the paper library as storehouse and the digital library as gateway are an electronic informations versus printed materials, access versus ownership, information professional versus librarians. The idea that library as physical place and as cyberspace are diametrically o n.0, pposed is a fallacy and surrealistic opinion. Future library has to acquire, organize, preserve, and make accessible the collections that users want and need. In other words, future libraries need both ownership and access. Access to remote electronic resources must serve as a reasonable substitute for holdings of older material. Therefore, it is a balanced solution that the more heavily used or important materials be considered for ownership and selective information resources for access. No doubt, the traditional library and the digital library will be coexist in the 21 century.

• The Journal of Korean Institute of Communications and Information Sciences
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• 제11권3호
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• pp.153-163
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• 1986

GaAs, one of the III-V compounding semicondnctors, has been widely employed as base materials for the fabrication of the ultra-high-speed devices in the filelds of DBS, optical communications, MMIC'S and digital IC'S. There have been some reports on 4Kx4bit SRAM by D/E MESFET'S, 4K bit SRAM by HEMT'S, and receiver front ends for X-band by MMIC technologies, respectively. This paper reviews GaAs materials, wafer fabrication processes, device applications, and design aspects, and, finally, descusses the future of the ultra-high-spped-devices.