• Proceedings of KOSOMES biannual meeting
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• 2017.11a
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• pp.149-149
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• 2017

• 월간 기계설비
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• s.239
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• pp.40-43
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• 2010

국토해양부(장관 정종환)는 지난5월 26일 송도국제도시 연세대학교 캠퍼스에서 국토해양부 장관, 녹색성장위원회 위원장, 연세대학교 김한중 총장 등이 참석한 가운데 "저에너지 친환경 공동주택(그린홈 플러스 G-home)"모델 개관식을 개최했다. 그린홈 플러스는 정부가 R&D 예산을 지원하여 산 학 연 합동으로 추진한 "저에너지 친환경 공동주택 기술개발"의 연구 성과물로서, 국내 최초로 공동주택에 저에너지 친환경 주택 기술을 적용하여 건축한 모델이라는데 의의가 있다.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10a
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• pp.73-75
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• 2004

그리드 컴퓨팅의 기본 개념은 여러 대의 저 성능 컴퓨터 자원을 통합하여 고성능 컴퓨팅 환경을 구축하는 것이다. 이런 환경을 관리하기 위해서는 요청된 작업에 대해 자원 관리 시스템의 효율적인 자원 탈당 기능이 중요하다. 본 논문에서는 효과적인 자원의 선택을 위해 CPU의 종합적인 성능을 평가하는 UC 단위 모델을 제안하고, 제안된 모델을 기준으로 자원관리 시스템에서 저 성능 컴퓨터 자원을 효율적으로 할당 할 수 있도록 저 성능 자원 우선 알고리즘을 제안하며, 이를 이용한 에이전트 기반 자원관리 시스템을 구현한다.

• Proceedings of the KAIS Fall Conference
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• 2011.12a
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• pp.93-96
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• 2011

본 논문은 저예산영화의 흥행을 위해 구전마케팅을 하기위한 마케팅툴의 개발이 목적이다. 무선인터넷과 모바일의 컨버전스로 천만 명의 사용자를 갖게 될 스마트폰의 저예산 독립영화의 애플리케이션을 개발을 통해 최적의 애프릴케이션 서비스, 기능, 환경 등을 알아낸다. 이로써 저예산 독립영화의 마케팅 기반을 구축하여 한국영화 산업의 발전에 기여하고자 한다. 이를 위해 컨조인트 설문과 일반 설문을 종합하여 컨조인트 분석을 실시하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.375-376
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• 2021

본 연구는 G광역시 영구임대아파트에 거주하는 저소득 수급노인조사(2019년) 데이터를 활용하여 저소득 노인의 사회보장급여 수준이 우울에 미치는 영향에 대한 건강상태와 이웃관계가 보호효과로 작용하는지에 대한 다중매개효과를 검증하고자 한다.

• The Journal of Engineering Geology
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• v.13 no.1
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• pp.51-65
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• 2003

A series of numerical simulations were carried out using STOMP( Subsurface Transport over Multiple Phase) simulator. The flow and distribution of LNAPL were analyzed in homogeneous fine and coarse sand. Vertical movement of LNAPL is faster in the coarser sand. But the total volume of LNAPL retained in the unsaturated zone is larger in the finer sand. A fine layer in the coarse sand domain is also simulated. The results showed that the retained LNAPL volume and shape are highly influenced by the Position of the fine layer. Flow and distributions of LNAPL were simulated when there were heterogeneous lenses in the sand domain. Water table fluctuation was also considered. In these cases, it was found that the heterogeneous lens was a barrier to LNAPL flow, and water table fluctuation stimulated the downward movement of retained LNAPL. The LNAPL flow and distribution observed in these numerical experiments show that in the subsurface environment, the behaviors of LNAPL highly depend on heterogeneities of unsaturated zone and the dynamic hydrogeologic condition such as water table fluctuation. These results can explain some of the complexity of LNAPL flow and distribution Patterns in LNAPL contaminated field sites.

• Journal of KIISE:Databases
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• v.33 no.7
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• pp.693-707
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• 2006

To improve performance using a multidimensional index in similar sequence matching, we transform a high-dimensional sequence to a low-dimensional sequence, and then construct a low-dimensional MBR that contains multiple transformed sequences. In this paper we propose a formal method that transforms a high-dimensional MBR itself to a low-dimensional MBR, and show that this method significantly reduces the number of lower-dimensional transformations. To achieve this goal, we first formally define the new notion of MBR-safe. We say that a transform is MBR-safe if a low-dimensional MBR to which a high-dimensional MBR is transformed by the transform contains every individual low-dimensional sequence to which a high-dimensional sequence is transformed. We then propose two MBR-safe transforms based on DFT and DCT, the most representative lower-dimensional transformations. For this, we prove the traditional DFT and DCT are not MBR-safe, and define new transforms, called mbrDFT and mbrDCT, by extending DFT and DCT, respectively. We also formally prove these mbrDFT and mbrDCT are MBR-safe. Moreover, we show that mbrDFT(or mbrDCT) is optimal among the DFT-based(or DCT-based) MBR-safe transforms that directly convert a high-dimensional MBR itself into a low-dimensional MBR. Analytical and experimental results show that the proposed mbrDFT and mbrDCT reduce the number of lower-dimensional transformations drastically, and improve performance significantly compared with the $na\"{\i}ve$ transforms. These results indicate that our MBR- safe transforms provides a useful framework for a variety of applications that require the lower-dimensional transformation of high-dimensional MBRs.

• Journal of Nutrition and Health
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• v.21 no.1
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• pp.1-11
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• 1988

The effect of maternal low protein diets during gestation and lactation on growth and development of young rats was investigated. Pregnant and/or lactating rats were fed the diet containing 20% or 11.7%casein. DNA, RNA and total protein were determined in liver, muscle and brain of 21-day-old young rats and lipid contents and acetylcholinesterase activity in brain. Body and organ weight of young rats were measured. DNA, RNA and protein contents of liver, muscle and brain of young rats were less in maternal low protein group than that of control group. Total lipid and cholesterol contents in brain were less(p<0.01) in low protein group than that of control group than that of control group. And also brain acety;cholnesterase activity of low protein group was significantly (p<0.01) lower than those of control group, but their each organ weight ratios in relation to body weight was higher than that of control group. It could be suggested that the maternal low protein during gestation and lactation has influenced on cell number, cell size, protein content, brain lipid content and acetyl-cholinesterase activity of the offsprings.

• Economic and Environmental Geology
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• v.53 no.1
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• pp.11-21
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• 2020

One-dimensional analytical solutions were used for forward and back diffusion of trichloroethylene (TCE) and tetrachloroethylene (PCE) in a single system with high- and low-permeability layers. Concentration profiles in a low-permeability layer, diffusive fluxes at the interface between the high- and low-permeability layers, and contaminant persistence in the high-permeability layer due to back diffusion were simulated with a comparison of semi-infinite and finite analytical solutions. In order to validate the analytical solutions used in this study, the results of one-dimensional analytical solutions developed by Yang et al. (2015) were compared with Nash-Sutcliffe model efficiency coefficient (NSE). When compared with Yang et al. (2015), the analytical solutions used in this study showed good agreements (NSE = 0.99). When compared with semi-infinite analytical solutions, TCE and PCE concentration profiles in the low-permeability layer, the diffusive fluxes, and the contaminant tailings of the high-permeability layer were underestimated. In order to determine the appropriate analytical solutions based on the effective diffusion coefficient, the thickness of the low-permeability layer, and the diffusion time in the TCE and PCE contaminated site, a term of dimensionless diffusion length (Z_d) was used. If the Z_d is less than 0.7, the semi-infinite solutions can be used to simulate accurate concentration profiles in low-permeability layers. If the Z_d is greater than 0.7, the reliability of simulations may be improved by using the finite solutions.

• Journal of Korean Home Economics Education Association
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• v.24 no.1
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• pp.73-84
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• 2012

The purpose of this study was to explore the role of home economics education in a low fertility society in the contexts of curriculum contents, community involvement, public policy participation, and advocacy. The results showed following. First, home economics is a key subject matter in dealing with a low fertility problem among 2007 revised curriculum for secondary education level. Home economics curriculum contents was systematically organized through 8th grade to 10th grade in 4 units, where as curricula contents of social studies, science, and moral education deal with a low fertility problem in partial. Second, it is proposed to be active in community involvement incorporating with secondary education, college education, and lifelong education by service learning, outreach program, and extension program. Third, public policy and advocacy participation of home economics teachers are crucial for transformative leadership and practice in enhancing the condition of individual, family, and community wellbeing such as a low fertility problem. To perform this role of home economics education, home economics teachers should participate in developing curricula and teaching materials for the extra curricula activity, creative experiencing activity, and service learning activity. Home economics teacher educators also should actively involved in outreach program and extension program as well as in public policy advocacy activity for solving a low fertility problem.