• Journal of the Korean BIBLIA Society for library and Information Science
• /
• v.14 no.2
• /
• pp.141-158
• /
• 2003

The development of new technology and the change of educational environment are much influencing the primary and middle school education. The school library which is very important part of school education in order to perform its functions effectively and efficiently must be provided with professional staff, necessary resources and adequate facilities. It is necessary to redesign and renovate existing facilities to meet the growing needs of newly developed school library programs and to effectively manage and allocate physical space appropriately. The objective of this research is to study the theoretical background of the subject and to find out present conditions and future needs of school library facilities and environmental change in Korea through a predesigned questionnaire for a redesign proposal.

• Journal of the Korean Institute of Educational Facilities
• /
• v.20 no.2
• /
• pp.3-14
• /
• 2013

The purpose of this study is to analyze patterns of public school building layout types, open space and relationship with communities in the Manhattan grid plan. The study illustrates how building layout patterns of school facilities are influenced by societal demands in the urban grid environment. During the nineteenth century, the Island of Manhattan was transformed into a physical representation of the Cartesian coordinate system via the development of the grid street plan. In order to take advantage of streets as urban space, it is quite important to understand characteristics of communities and open space relationships between buildings and streets. Moreover, the strategic planning of schools' outdoor space vitalizes public streets as a critical community anchor. This research reviews 118 Manhattan public schools and categorizes them by (1) building layout type, (2) site type, (3) circulation and public open space, which are the biggest factors that determine the layout patterns of the public schools in Manhattan. As a result of analysis, the layout patterns are classified into seven types : "ㅡ", "L", "ㄷ", "ㅁ", "H", "T" and "other" type. Of these, "ㅡ" type and "L" type occur most frequently, because these configurations most flexibly fit into the limited grid-locked blocks, the various types of site & topography, and adapt most dynamically to the open spaces created by using avenues and streets. The ultimate objective of this study is to provide a case study for future efforts to plan open spaces for campuses that effectively utilize the streets in proximity.

• Journal of Gifted/Talented Education
• /
• v.23 no.6
• /
• pp.861-879
• /
• 2013

The purpose of this study was to explore the science gifted students' value-judgments and decision making writing on the space exploration enterprise. Sixty-four first graders of a gifted science school took the seminar-style decision making instruction for 10 hours in one month. After having the seminar-style decision making instruction, we have analyzed science gifted students' value-judgments and decision making process utilizing questionnaires and their writings. As a result, gifted students were aware of both sides of the space exploration enterprise, benefits and risks, and showed different decision making depending on their priorities of evidence interpretation. Although the majority of gifted students were very well aware of the importance of space exploration enterprise, they would still need to know the background information of space exploration enterprise. Based on this study, implications of SSI education and future research about space exploration enterprise were discussed in the result.

• The Bulletin of The Korean Astronomical Society
• /
• v.38 no.2
• /
• pp.68.1-68.1
• /
• 2013

Infrared Medium-Deep Survey is a near-infrared imaging survey geared toward understanding the formation and the evolution of quasars and galaxies at high redshift, and studying transient and time-variable objects such as gamma-ray bursts, supernovae, and young stellar objects. The survey uses a multi-tier structure, with deep imaging survey of 100 $deg^2$ using UKIRT to the depth of 23 AB mag, and a shallower imaging of interesting sources using the CQUEAN camera on the 2.1m telescope at McDonald observatory. This talk will give an overview of the survey strategy, the instrument development, and science highlights. The science highlights will include the discovery of high redshift quasars, high redshift galaxy clusters, GRBs, and other interesting sources. At the end of the talk, we will also present the future prospects of our study.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• v.14 no.1
• /
• pp.93-113
• /
• 2020

According to information theory, non-orthogonal transmission can achieve the multiple-user channel capacity with an onion-peeling like successive interference cancellation (SIC) based detection followed by a capacity approaching channel code. However, in multiple antenna system, due to the unideal characteristic of the SIC detector, the residual interference propagated to the next detection stage will significantly degrade the detection performance of spatial data layers. To overcome this problem, we proposed a modified power-domain non-orthogonal multiple access (P-NOMA) scheme joint designed with space-time coding for multiple input multiple output (MIMO) NOMA system. First, with proper power allocation for each user, inter-user signals can be separated from each other for NOMA detection. Second, a well-designed quasi-orthogonal space-time block code (QO-STBC) was employed to facilitate the SIC-based MIMO detection of spatial data layers within each user. Last, we proposed an optimization algorithm to assign channel coding rates to balance the bit error rate (BER) performance of those spatial data layers for each user. Link-level performance simulation results demonstrate that the proposed time-space-power domain joint transmission scheme performs better than the traditional P-NOMA scheme. Furthermore, the proposed algorithm is of low complexity and easy to implement.

• Journal of the Korean Solar Energy Society
• /
• v.28 no.1
• /
• pp.19-24
• /
• 2008

The energy crisis is culminating for the life of the fossil fuel in the future which is come to end at $30{\sim}40$ years. Moreover above 90% of the energy in our country depend on importing and the crisis is more seγious than it of other countries. So architects devote low energy house research and it means underground space research have become public opinion. But there is not an accurate and utility method calculating the heating load of underground space. In this study it is proposed that the heating load is calculated by setting adiabatic thichness of soil and predicting underground temperature. The prediction of the underground temperature is calculated by the latitude, the level, the distance from sea, the condition of earth surface.

• ETRI Journal
• /
• v.45 no.2
• /
• pp.203-212
• /
• 2023

In this study, we developed a co-located and space-shared multiple-input multiple-output (MIMO) antenna module with a modular design and high integration level. The proposed antenna pair includes a half-wavelength loop antenna and a dipole-type antenna printed on the front and back sides of a compact modular board. Owing to their modal orthogonality, these two independent antenna elements are highly self-isolated and free of additional decoupling components, even though they are assembled at the same location and within the same space. Thus, the proposed antenna is attractive in 5G MIMO systems. Furthermore, the proposed co-located and space-shared MIMO antenna module was employed in a 5G smartphone to verify their radiation and diversity performances. A 12 × 12 MIMO antenna system was simulated and fabricated using the proposed module. Based on the results, the proposed module can be employed in large-scale MIMO antenna systems for current and future terminal devices owing to its high integration, compactness, simple implementation, and inherent isolation.

• Journal of the Korean housing association
• /
• v.26 no.1
• /
• pp.99-107
• /
• 2015

The purpose of this study is to present an appropriate approach to urban regeneration by analyzing Gwangju Metropolitan City. For the study, residential area of Asia Culture Complex was analyzed based on GIS. The areas concerned were categorized and looked into by their Situation based on the analysis of urban infrastructure state. However, as the architectural space within a city are limited, and accurate assessment of them is needed. The residential areas have the following characteristics. They become an aging and dilapidating residential and socially underprivileged-concentrated area. It is necessary to set up a direction for a future-oriented planning for the development of these areas. Along with a decreasing population, it is important to improve the urban architecture environment for the elderly in an aging society. The economic growth of a city if necessary for the future. Therefore, the criteria for the assessment is required. And the subsequent setting-up and planning of a future direction for a city is badly needed. After that, an accurate assessment of a city called for. City space allows for various interpretations. As the rich are getting richer and the poor are getting poorer, a wealth is concentrated on one district or an area.

• The Bulletin of The Korean Astronomical Society
• /
• v.42 no.1
• /
• pp.57.2-57.2
• /
• 2017

Remote and robotic telescopes are the most effective instrument for astronomical survey projects. The system is based on the dynamic operation of all astronomical instruments such as dome and telescope control system (TCS), focuser, filter wheel and data taking camera. We adopt the ASCOM driver platform to control the instruments through the integrated software. It can convert different interface libraries from various manufacturers into a uniform standard library. This allows us to effectively control astronomical instruments without modifying codes. We suggest a conceptual design of software for automation of a small telescope such as the new wide-field 0.25m telescope at McDonald Observatory. It can also be applied to operation of multi-telescopes in future projects.

• Korean Institute of Interior Design Journal
• /
• no.23
• /
• pp.58-67
• /
• 2000

The purpose of this study is to look for the tendency of 391 Masters' theses(among total 405 theses), which were conferred from graduate school in interior design from 1993 to 1999. This study has been developed by two steps. First step is to select factors such as conferment year, graduate school, field and subject and space of study. Second step is to extract the characteristics of five factors and their interrelations during seven years. The conclusion could be summarized as follows; In the early years, interior design studies were chiefly made by a new schools. And these studies tended to carry out design projects which were connected with residential, commercial and exhibition space. Space design was an absolutely major subject and field of study. But gradually, by many graduate schools, interior design studies have been developed both in quality and in quantity. Various spaces and various subjects were included with design-oriented theories. It was very natural that the character of study depended upon the graduate school. In the future, interior design study had better add some related designs and theories to support it.