• 한국환경생태학회지
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• 제20권4호
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• pp.415-424
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• 2006

산림유역 조건에 따른 붕괴 토사량을 측정하여 사면 붕괴가능성을 평가하고 붕괴위험 지역에 대한 예지기술(豫知技術)을 개발함으로서 산지사면에서 발생하는 각종 재해에 대한 피해를 최소화 할 수 있는 산림유역 관리에 대한 기술적 기초 자료를 제공하고자 연구하였다. 붕괴 위험지역을 평가한 결과 I급지(매우 위험지역)는 화성암지 역으로 침엽수림이며 임령은 20년생 이하, 토심은 30cm 이하, 토성은 사질식양토(SCL), 석력함량은 $31{\sim}40%$, 사면방위는 남${\sim}$동$(S{\sim}E)$사면, 주하천길이는 $2,501{\sim}3,500m$, 총하천수는$26{\sim}30$개, 총하천길이는$5,501{\sim}10,000m$, 하천차수는 3차수, 일차하천수는 $11{\sim}15$개 또는 16개 이상, 사면경사는 $31^{\circ}$이상의 지역으로 평가되었고, II급지(위험지역)는 변성암지역으로 활엽수림이며 임령은 $21{\sim}24$년생, 토심은$31{\sim}40cm$, 토성은 미사질식양토(SiCL) 또는 사질식양토(SCL), 석력함량은 $11{\sim}20%$, 사면방위는 남${\sim}$서$(S{\sim}W)$사면, 주하천길이는 $1,501{\sim}2,500m$, 총하천수는 $6{\sim}10$개, 총하천길이는 $3,501{\sim}5,500m$, 하천차수는 2차수, 일차하천수는 $6{\sim}10$개, 사면경사는 $31^{\circ}$이상의 지역으로 평가되었으며, III급지(비 위험지역)는 퇴적암지역으로 임상은 혼효림, 임령은 25년생 이상, 토심은 $41{\sim}50cm$, 토성은 미사질식양토(SiCL), 석 력함량은 10% 이하, 사면방위는북${\sim}$서$(N{\sim}W)$사면, 주하천길이는 500m 이하, 총하천수는 5개 이하, 총하천길이는 1,000m 이하, 하천차수는 1차수, 일차하천수는 2개 이하, 사면경사는 $25^{\circ}$이하의 지역으로 평가되었다. 붕괴위험 예측치를 이용하여 붕괴위험지역을 예지한 결과 점수의 합계가 I급지는 4.8052점 이상이며 II급지는 4.8051점에서 2.5602점 사이에 해당하며 III급지는 2.5601점 이하의 지역으로 분석되었다.

• Genomics & Informatics
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• 제4권1호
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• pp.40-44
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• 2006

Toxicogenomics combines transcriptome, proteome and metabolome profiling with conventional toxicology to investigate the interaction between biological molecules and toxicant or environmental stress in disease caution. Toxicogenomics faces the problems of comparison and integration across different sources of data. Cause of unusual characteristics of toxicogenomic data, researcher should be assisted by data analysis and annotation for getting meaningful information. There are already existing repositories which claim to stand for toxicogenomics database. However, those just contain limited abilities for toxicogenomic research. For supporting toxicologist who comes up against toxicogenomic data flood, now we propose novel toxicogenomics knowledgebase system, XPERANTO-TOX. XPERANTO-TOX is an integrated system for toxicogenomic data management and analysis. It is composed of three distinct but closely connected parts. Firstly, Data Storage System is for reposit many kinds of '-omics' data and conventional toxicology data. Secondly, Data Analysis System consists of analytical modules for integrated toxicogenomics data. At last, Data Annotation System is for giving extensive insight of data to researcher.

• 한국농촌건축학회논문집
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• 제13권1호
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• pp.21-28
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• 2011

The main purpose of this study is to analyze construction of space through the investigation of the cases of school community library through Gangneung-si's life-learning project and the findings from the analysis could be summarized as below. Firstly, most space used for school community library has the size of two classes in school on average and locals use generally space for reference and learning at school community library. Secondly, the construction of space of school community library is categorized into one for book-returning, references, reading, group learning and information, and an audio-visual space is also used for group learning and reading. A space for book-returning has features based on the location of its entrance and a space for reading features stand-up and sitting-on space considering size and usability. And a space for group learning has the feature of space planning that makes it possible for local people to get library programs and seminars and a space for information shows its feature of space planning that uses the wall.

• 대한간호학회지
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• 제33권2호
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• pp.200-209
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• 2003

Purpose: This study was to identify the prevalence of orthostatic hypotension and its association with risk factors of orthostatic hypotension aged over 60 in Seoul and Chungju, Korea. Method: The data were collected from the 22th of August, 2000 to the 7th May 2001. The participants were 74 community-dwelling aged who could stand up from sitting position without assistance. Subjects were interviewed with structured questionnaire in order to ask experience of previous falls, hours in per day, symptoms related orthostatic hypotension and demographic characteristics. Orthostatic hypotension was assessed at 1 minute after the subjects standing from sitting position and defined as 20mmHg or greater decrease in systolic blood pressure after standing. Result: The prevalence of orthostatic hypotension was 17.1%. The mean drop of systolic blood pressure was 27.46mmHg among orthostatic hypotension subjects. The significant variables which explain the occurrence of orthostatic hypotension was the basal systolic blood pressure, the hit ratio of discriminant function with basal systolic blood pressure was 69.7%. Conclusion: Finding indicate that this study will contribute to develop nursing strategies to identify risk factors and to prevent orthostatic hypotension for the aged.

• Journal of Forest and Environmental Science
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• 제29권1호
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• pp.99-108
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• 2013

This study was conducted to evaluate the non-timber forest functions of the Research Forest area of Kangwon National University. In this study, forest recreation function was investigated through survey method answered by forest management experts. The evaluation factors for forest recreation function were separated into external and internal factors. Each factor was classified into intermediate element and detailed element. Therefore in this study, the evaluation factors of forest recreation function were divided into two groups which are the potential of external factors and the suitability of internal factors. Potential of the external factors were divided into accessibility, location, landscape and induction factors while the suitability of internal factor was divided into stand structure, forest structure and human impact. The priority of the potential of external factors was in order that location, accessibility, induction factors and landscape. The most important factors for the location, accessibility, induction and landscape factors are based on regional characteristics.

• 한국미생물·생명공학회지
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• 제18권5호
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• pp.449-453
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• 1990

대용응유효소를 생산하는 균주를 선별하기 위해 토양, 건초, 퇴비 등 114시료를 분리원으로 하여 응유효소를 생산하는 16균주를 분리하였으며 이들 각 균주들이 생산하는 유응고력과 단백질 분해력의 비는 균주번호 C-7 것이 1,929로 가장 좋았다. C-7 균주의 균사는 회백색으로 격막이 없었고 포자낭병은 균사로부터 단독으로 곧게 뻗어 갈라지지 않은 monomucor형으로 그 끝은 구형의 포자낭을 형성하였으며 적합한 생육온도와 생육 pH의 범위는 20-$30^{\circ}C$, pH 3.0-8.0이었다. 형태적, 생리적 여러 특성에 따라 C-7 균주는 Mucor mucedo로 동정되었다.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2009년도 추계학술발표대회 논문집
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• pp.217-222
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• 2009

This study is lately stand on the basis of the importance for global warming and environment and accept changes of the paradigm of the 21st century. also it is to start architecturial access that suggest to solutions about environment, energy and health problems in high-rise residential architecture that lately the importance for global warming and environment. Spacially since 1990, high-rise residential architecture has developed into increase rapidly, and nowdays, this has become one of the new residence type. but this have diverse problems. For this reason, this building faced neccessary to improve living space and obtain to eco-friendiness and sustainability. Therefore, this study is focused to environment-friendly architectural certification in Korea and other countries, aims to suggest planning and technical elements from this system. Through 11 cases of high-rise residential architecture certified sustainable certification system, this study drew out tendency and charateristics of main strategy elements. These analysis will express informations of current level and also suggest to direction for improvement in quality of high-rise residence.

• 디지털산업정보학회논문지
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• 제4권4호
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• pp.127-138
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• 2008

To study about core capability which becomes the kernel of sustainable competitive advantage (SCA) in cyber university which confronts competition-deepening circumstance, the value and importance of brand and educational services of cyber universities which stand on the basis of offline university were examined. Moreover, core capability based on the importance of cyber university service was searched, and its strategic course were suggested. Within research processes, competition environment of cyber university was forecasted, and importance to build up its core capability was examined. Moreover, conjoint analysis was carried out for three offline cyber universities. As a result of survey analysis, effectiveness of cyber university brand showed greater influence than other characteristics in terms of the influence which affects consumer preference for cyber university. Therefore, to overcome weaknesses of brand asset in low brand power cyber university, establishment of strong core capability which reflects consumer preference is needed to carry out differentiation strategy or concentration strategy, and it is necessary to consider the introduction of new competitiveness structure.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2008년도 춘계학술대회 논문집
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• pp.169-173
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• 2008

Stirling engine is a promising heat engine with a high efficiency, muti-fuel capability, low emission, quiet operation, very low maintenance and long life. As one of the promising applications, solar power system based on the Stirling dish, providing net solar-to-electric conversion efficiencies reaching 30%, can operate as stand-alone units in remote locations or can be linked together in groups to provide utility-scale power. This paper introduced a new Scroll-type Stirling engine, being developed for solar power, superior to conventional Stirling engines. The Scroll-type Stirling engine is characterized as traits of continuous and wholly separated compression and expansion; one-way flow system; direct cooling and heating the fluid in the working spaces through the extensive inner surfaces of scroll wraps. All theses traits contribute to achieving thermodynamic cycle closer to the ideal Stirling cycle (exactly speaking, Ericsson cycle).

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2004년도 춘계 학술대회논문집
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• pp.113-118
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• 2004

This paper presents a two-dimensional edge tone to predict the frequency characteristics of the discrete oscillations of a jet-edge feedback cycle by the finite difference lattice Boltzmann method (FDLBM). We use a new lattice BGK compressible fluid model that has an additional term and allow larger time increment comparing the conventional FDLBM, and also use a boundary fitted coordinates. The jet is chosen long enough in order to guarantee the parabolic velocity profile of the jet at the outlet, and the edge consists of a wedge with an angle of $\alpha=23^0$. At a stand-off distance $\omega$, the edge is inserted along the centreline of the jet, and a sinuous instability wave with real frequency f is assumed to be created in the vicinity of the nozzle and th propagate towards the downstream. We have succeeded in capturing very small pressure fluctuations result from periodically oscillation of jet around the edge. That pressure fluctuations propagate with the sound speed. Its interaction with the wedge produces an irrotational feedback field which, near the nozzle exit, is a periodic transverse flow producing the singularities at the nozzle lips. The lattice BGK model for compressible fluids is shown to be one of powerful tool for computing sound generation and propagation for a wide range of flows.