• Journal of the Korea Society of Computer and Information
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• v.11 no.4 s.42
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• pp.251-259
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• 2006

Major telecommunication companies are leading on providing mobile contents service to customers. With changes in technology and social areas, most organizations are struggling to achieve the competitive edge over other organizations. Like others, university has the same problems to meet clients' needs to become being competitive. The research is to provide meaningful thoughts by analyzing empirical data and provide meaning information for University being competitive with IS and Mobile campus related decisions.

• Journal of the Korea Society of Computer and Information
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• v.11 no.6 s.44
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• pp.211-219
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• 2006

As the wireless network is popular and expanded, it is necessary to development the IDS(Intrusion Detection System)/Filtering System from the malicious wireless traffic. We propose the W-Sensor SW which detects the malicious wireless traffic and the W-TMS system which filters the malicious traffic by W-Sensor log in this paper. It is efficient to detect the malicious traffic and adaptive to change the security rules rapidly by the proposed W-Sensor SW. The designed W-Sensor by installing on a notebook supports the mobility of IDS in compare with the existed AP based Sensor.

• Korea Trade Review
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• v.42 no.6
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• pp.27-50
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• 2017

This study is to present practical plan to stimulate Parallel Import Policies, Which is one of the government policies to drop import prices of imported goods. Although, preliminary studies focused on legal aspects related to Intellectual Property Right, from the perspective of trade, we conducted a study on economic aspects through parallel import, consumer welfare, etc. For this study, the parallel import system of the United States and Japan was compared with Korea and the domestic parallel import market status was analyzed by comparing market price. According to the study, the current parallel import system lacked the limits of government regulation and distribution market structure. It proposed practical plans such as political suggestions and changes in distribution structure. This study is meaningful in analyzing the problem of parallel imports that currently occur in the Korea market based on data concerning parallel imports in practical terms

• Korean Journal of Microbiology
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• v.33 no.1
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• pp.72-77
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• 1997

이 글에서는 작은 저수지인 천호지를 대상으로 부영양화의 진행과 원인 그리고 이에 따른 미생물생태학적인 변화를 살펴보았으며 끝으로 호수를 회복시키는 부영양화의 대책에 대하여 간단히 기술하였다. 천호지는 충청남도 천안시 단국대학교 천안 캠퍼스 앞에 위치한 0.31km$^{2}$의 작은 관개용 저수지로 1995년 평균 엽록소 a의 농도가 75.$\mu$g/l에 달하는 등 부영양화 현상이 매우 심하게 나타났고 있다(1). 최대 수심은 7-8m, 평균 수심은 3m정도로 얕아 성층현상은 나타나지 않으며 평균 체류시간은 3-4개월이나 집수역에서 저수지까지의 유달 시간이 짧아 집수역에서의 실 체류시간은 1주일 미만일 것으로 추정된다.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.34 no.11
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• pp.145-156
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• 2018

Urban campus, one of the main urban facilities, is the representative place that is struggling with 'gridlock'. Due to privatization of space among different departments and space shortages, gridlock has been occurring as a result. The urban campus trying to solve this problem by changing the quality of space, especially the structure of the shared space, which is expected to be the solution to the grid lock problem. The main purpose of this study is to investigate the structural change in the university's shared space based on paradigm transition. The theoretical consideration is to analyze the spatial characteristics of university shared space that appear at different stages through a new perspective that compares the gridlock phenomenon and the shared paradigm. The framework of the analysis of the shared space, which has recently been restructured, is classified into the spatial characteristics of collaborative space, the creative space, and the common/complex space. In addition, these spatial characteristics are again analyzed through the division of legislative facility classification, management governance subject, area, building location and layout, exposure to the outside as well as the analysis of student and staff entry and exit, sharing structure of site and space, and the classification of program characteristics. The results are as follows: The restructured space is systemized so that the management governance of each space would be connected to each other to share information and space. Furthermore, the spatial boundary between colleges or between campus spaces are not only physically, but categorically clear. The restructured space has semi (or in-between)-spatial characteristics such as the intersection in inside and outside of the pedestrian's circulation and the mixture of programs. This study could serve as principal references in presenting the systematic analysis of directions of the shared spatial structure for the urban campus where new educational space is required due to the changes in the university system.

• Korean Journal of Ecology and Environment
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• v.47 no.3
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• pp.167-175
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• 2014

This study was conducted to quantify a carbon budget of major vegetation types established in the campus of the National Institute of Ecology (NIE). Carbon budget was measured for Pinus thunbergii and Castanea crenata stands as the existing vegetation. Net Primary Productivity (NPP) was determined by applying allometric method and soil respiration was measured by EGM-4. Heterotrophic respiration was calculated as 55% of total respiration based on the existing results. Net Ecosystem Production (NEP) was determined by the difference between NPP and heterotrophic respiration (HR). NPPs of P. thunbergii and C. crenata stands were shown in $4.9ton\;C\;ha^{-1}yr^{-1}$ and $5.3ton\;C\;ha^{-1}yr^{-1}$, respectively. Heterotrophic respirations of P. thunbergii and C. crenata stands were shown in $2.4ton\;C\;ha^{-1}yr^{-1}$ and $3.5ton\;C\;ha^{-1}yr^{-1}$, respectively. NEPs of P. thunbergii and C. crenata stands were shown in $2.5ton\;C\;ha^{-1}yr^{-1}$ and $1.8ton\;C\;ha^{-1}yr^{-1}$, respectively. Carbon absorption capacity for the whole set of vegetation types established in the NIE was estimated by applying NEP indices obtained from current study and extrapolating NEP indices from existing studies. The value was shown in $147.6ton\;C\;ha^{-1}yr^{-1}$ and it was calculated as $541.2ton\;CO_2ha^{-1}yr^{-1}$ converted into $CO_2$. This function corresponds to 62% of carbon emission from energy that NIE uses for operation of various facilities including the glass domes known in Ecorium. This carbon offset capacity corresponds to about five times of them of the whole national territory of Korea and the representative rural area, Seocheongun. Considered the fact that ongoing climate change was originated from imbalance of carbon budget at the global level, it is expected that evaluation on carbon budget in the spatial dimension reflected land use pattern could provide us baseline information being required to solve fundamentally climate change problem.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.05a
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• pp.99-100
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• 2023

In this study, an approach has been made to understand the effect of encapsulation thickness of the nanoencapsulated PCMs on the phase transition kinetics. Paraffin is encapsulated by silica via single pot polycondensation reaction. Different ratios of silica precursor are chosen to encapsulate paraffin. The obtained encapsulated PCMs are identified as nano sized, as well as with increasing silica precursor, thicker silica encapsulations have been manifested with shrinking core diameter. The synthesized PCMs are characterized using various characterization techniques. Isochronal kinetic studies are done in differential scanning calorimeter (DSC) to understand about their phase transformation behaviors. This study can appreciate the cognition of the large-scale applications of PCMs into the building constructions as well as the fundamental conception on the phase transition kinetics of PCMs can also be amended.

• 한국벤처창업학회:학술대회논문집
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• 2021.04a
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• pp.75-78
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• 2021

최근 대학을 둘러싼 외부 환경은 학령인구 감소로 인한 대학 입학자원 감소, 4차 산업혁명 도래에 따른 청년 일자리 감소 등의 급진적인 변화가 나타나고 있으며 이에 따라 내부 역량 강화 및 고도화, 대외 경쟁력 강화 및 사회적 역할 변화 등 체계적인 대응이 요구되고 있는 상황이다. 향후 학령인구 감소가 본격화될 것으로 예상되는 가운데 국내 대다수의 대학 특히 지방 대학의 경우 학령 인구 감소로 인해 나타날 다양한 변화에 대한 대책 마련이 절실히 요구되는 있다. 지방대학의 위상 약화로 지방대 졸업생의 취업의 질이 낮아지고, 우수 학생의 지방대학 기피로 이어지는 구조적 문제 발생하고 있으며, 이러한 지역 대학의 위기는 특정한 지역의 일부 대학만의 문제가 아닌 현재 우리 사회 전체가 직면하고 있는 구조적이고 복합적 원인에 기인하여 악순환의 고리를 형성하고 있다. 이에 본 연구에서는 지역 혁신을 위한 대학 역할 및 활성화 방안 도출 및 지역 혁신에 기여하는 대학의 국내외 우수사례 분석 지역을 중심으로 한 창업 생태계 현황 및 구성 체계, 창업선도대학, 캠퍼스 타운사업 등 대학을 중심으로 한 지역기반 창업 생태계 선도 모델 분석을 통해 지역사회와 상생하는 대학 중심 지역 창업생태계 구축을 위한 창업기반 지역 혁신형 대학 모델 발굴 및 제언하고자 한다.

• Science of Emotion and Sensibility
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• v.22 no.2
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• pp.101-108
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• 2019

The aim of this study was to verify differences in autonomic responses that are affected by the configurations of one-room type units using an electrocardiogram (ECG). Accordingly, 43 one-room units that were collected randomly were classified into ten different types of floor plan configurations mainly according to the location of the bathroom and kitchen. An ECG was subsequently measured for each plan type and the average ratio of the LF/HF (Power in low frequency range/Power in high frequency range) was calculated to measure the comfort level of each space. The results revealed a significant statistical difference between the average LF/HF ratio between the plan types (p < 0.05) and provided compelling evidence suggesting that the configuration of the plan may affect the quality of one-room space. This approach appears to be effective in counteracting stress that may exacerbate psychological disorders in single person households.

• Applied Chemistry for Engineering
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• v.22 no.5
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• pp.508-513
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• 2011

Hemp is known as one of the most productive and useful plants, which grows quickly in a moderate climate with only moderate water and fertilizer. Traditionally in Korea, hemp bast is used to natural fibres, and remaining such as stem and root is treated as waste. Those of hemp by-products can be transformed to bio fuel such as bio-oil and activated carbon. To understand pyrolysis characteristics, thermogravimetric analysis were carried out in TGA, in which hemp by-products were mostly decomposed at the temperature range of $270{\sim}370^{\circ}C$. The corresponding kinetic parameters including activation energy and pre-exponential factor were determined by differential method over the degree of conversions. The values of activation energies for pyrolysis were increased as the conversion increased from 10 to 90%.