• Journal of the Korean Home Economics Association
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• v.33 no.2
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• pp.57-71
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• 1995

가족형태가 부의 자녀양육시간과 결정요인에 미치는 영향 기혼여성의 취업증가로 인해 아버지의 적극적인 자녀양육 참여가 요구되어 왔다. 또한 이 같은 요구는 부의 참여가 기혼여성, 자녀의 성장발달등 가정천체에 미치는 영향이 중요하다는 인식과 함께, 부의 자녀양육시간 연구는 중요한 사회적 관심사로 동시에 연구대상으로 대두되었다. 이같은 변화속에서, 실제 가정생활에서 부의 자녀양육시간은 개개인에 따라 큰 차이를 나타냄에 따라, 어떤 개인적, 가정적, 또는 사회인구적 요인들이 양육시간량을 결정하는가를 연구하는 것은 그 의미가 있다. 현대가정의 또 하나의 커다란 변화는 미혼부 증가, 이혼증가로 인한 편부의 증가, 재혼 증가로 인한 계부의 증가 등 가족형태의 다양화에 있다. 본 연구에서는 이 같은 변화를 반영하여, 각기 다른 가정형태에서의 부의 자녀양육 참여시간을 비료 분석하였다, 또한 부의 자녀양육 시간량 관련요인을 조사하기 위하여 노동시장의 근로시간, 개별적 인적 자원, 역할관념, 가정환경등의 효과를 검증하였다. 본 연구에서 사용된 자료는 미국 위스콘신대학내 (University of Wisconsin-Madison), 인구 및 생태센터 (Center for Demography and Ecology)에서 1988년에 실시한 설문조사 및 면접조사로써, "전국 가족 및 공도거주체 조사" (National Survey of Family and Households)에서 추출했다. 연구결과에 따르면, 가족형태가 부의 자녀양육시간에 미치는 효과는 큰 것으로 검증 되었다. 각 그룹간 비교에서 편부가정의 부는 여타의 가정내의 부보다 많은 시간을 자녀와 놀아주고, 야외활동 및 과제물 도와주기 등에 할애한 것으로 나타났다. 반면 계부는 여타의 가정내의 부보다 더욱 적은 시간을 자녀와 함께 하였다. 부의 자녀양육시간 결정요인 분석 결과에 따르면, 직장에서의 노동 시간, 교육수준, 자녀 연령이 큰 효과를 나타내는 것으로 밝혀졌다,, 부의 직장 근로시간이 적을수록 교육수준이 높을수록 자녀양육 참여시간은 높은 것으로 나타났다. 또한 어린자녀를 가진 아버지일수록 자녀와 함께하는 시간이 긴 것으로 나타났다. 것으로 나타났다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.10 no.3
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• pp.43-50
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• 2010

DDC(Digital Down Converter) is a conversion technology to decimate to a lower sampling rate and DDC for the future development of communications technology has the necessary skills. So, it has been recognized in the wireless and the SDR(Software Defined Radio) system as essential components. In addition, research is underway on spectrum sensing for efficient communications environment due to the shortage of frequency resources. In this paper, the DDC systems were analyzed for CIC(Cascaded Integrator Comb) Filter, WDF(Wave Digital Filter), SRC(Sample Rate Conversion) each module. Moreover, we proposed a linkage effectively between DDC system and Spectrum Sensing for improve the efficiency of use of frequency by computer simulations. The simulation results of the DDC system was applied to the spectrum sensing capabilities. Also, performance and complexity of the results were derived and proposed system was the result of the check.

• Journal of Gifted/Talented Education
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• v.23 no.6
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• pp.1117-1145
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• 2013

Research on entrepreneurial giftedness is in its initial stage and the importance is increasing these days. The purpose of this article is to establish a foundation of entrepreneurial giftedness research by conceptualizing the concept and characteristics of entrepreneurial giftedness. The author reviewed prior research on entrepreneur and entrepreneurship, potential entrepreneur, gifted youth in invention, and entrepreneurial gifted youth, and proposed a new perspective on entrepreneurial gifted youth based on the findings from the review. Entrepreneurial giftedness proposed in this study is someone who is risk-taking to achieve opportunities and innovation and who has potential to be competent in managing resources. The author also proposed that entrepreneurial giftedness study needs to focus on developmental characteristics, management ability, and practical intelligence. Finally, based on the findings from previous research on entrepreneurial giftedness, environmental and personality characteristics, temperament and character, cognitive traits, and vocational interest of entrepreneurial giftedness are discussed. Implications and further research directions were discussed.

• Korean Journal of Cognitive Science
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• v.30 no.1
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• pp.1-30
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• 2019

The main goal of this paper is to understand the underlying cognitive mechanisms of collaborative learning and how it can be supported by technology. The paper first overviews changes in conceptions of learning and distinguishes different types of joint works including collaborative learning. Cognitive mechanisms of collaborative learning are examined in terms of resource pooling, facilitation of constructive activities, knowledge co-construction, and supports for monitoring and regulation. Socio-emotional mechanisms of collaborative learning moderate the directions and strengths of these cognitive mechanisms. Technology supports these mechanisms in a number of different ways. Seven major supports technology provides for collaborative learning are discussed. A deeper understanding of the cognitive mechanisms of collaborative learning can help us to harness the benefits of collaborative learning better and also to develop more sophisticated tools supporting collaborative learning.

• Journal of Korea Water Resources Association
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• v.55 no.1
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• pp.23-32
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• 2022

This paper performs two-dimensional numerical simulation of surface water-groundwater coupled flow and solute transport to investigate the effect of the hyporheic exchange at the sediment-water interface (SWI) on surface solute transport. For the impermeable bed case in the absence of hyporheic flow, the trapping effect of flow recirculation associated with the ripple bed controls the shape of breakthrough curves (BTCs). However, the permeable bed case with hyporheic flow stimulates the extended tailing of the BTCs more significantly due to the elevated concentration of the BTC tailing resulting from slow hyporheic velocity. Also, the increased bottom pressure at the SWI with an increase in surface velocity shortens the BTC tailing because of increasing hyporheic velocity. These results infer that hyporhiec flow is critically important in predicting solute residence times in surface water.

• Korean Journal of Ichthyology
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• v.34 no.2
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• pp.119-126
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• 2022

Here, we present the first morphological description of a larval Naso hexacanthus (5.2 mm in body length) from the East China Sea identified by cytochrome c oxidase subunit I (COI) barcoding. The larva had a kite-shaped body with long serrated first spine of dorsal and anal fins. There were four melanophores on the base of the anal fin, dense melanophores on the caudal peduncle, and scattered melanophores on the surface of the brain. There was one small spine on the snout and behind each eye, with serrations on the head, top of the eye, inner- and outer-preopercle, and on the lower part and side of the opercle. The morphological characteristics of larval N. hexacanthus identified by COI barcoding will be useful for species identification of larval fish.

• Journal of the Korean Society for Library and Information Science
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• v.56 no.1
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• pp.321-345
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• 2022

Public libraries have been facing new challenges as the number of channels providing information resources has been increasing due to information and communication technology development. The perception of public libraries of the general public is that they should continue to play a substantial role in information services. However, the libraries' environments are changing, and the public's needs are diversifying, so public libraries also need to differentiate themselves from other organizations that provide similar services. This paper proposes branding as a solution to create differentiation. The study conducted a questionnaire survey with Koreans in their 20s. A series of statistical tests with the survey data showed the impact of the brand association elements on customer satisfaction and brand loyalty and identified unique factors in public libraries. For example, Brand associations such as material-based services, benefits, and attitude affected both dependent variables. On the other hand, the non-product association such as space/place images did not. Based on these findings, we provided implications for introducing branding in public libraries.

• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.336-336
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• 2021

기후변화와 도시화로 인한 집중 호우와 불투수층 증가로 도시 홍수의 발생 빈도와 규모가 증가하고 있다. 인적, 물적 자원이 집중되어 있는 도시유역의 특성상 침수가 발생하면 이로 인한 직접적 피해 뿐만 아니라 사회경제적 2차 피해를 발생한다. 도시 홍수로 인한 피해를 줄이고 도시의 재해에 대한 회복력을 키우기 위해서는 관측과 더불어 정확한 모의 기술이 중요하다. 한편, 격자 기반 도시 홍수 모의는 집중 호우에 따른 침수의 시공간적 발생 양상을 물리적으로 해석하는 방법으로, 지표수-우수관거 이중배제 통합 모의, 수치기법, 병렬컴퓨팅, 수질 연계 모의 등의 측면에서 지금까지 많은 발전이 이루어져 왔다. 최근들어 원격탐사 기술의 발달로 공간해상도 1미터 수준 혹은 그 이상의 초고해상도 지형자료가 많은 지역에서 대해 가용해지고 있으며, 도시 홍수 해석에 이와 같은 초고해상도 자료를 적용하기 위한 연구가 활발히 진행되고 있다. 본 연구에서는 초고해상도 지형 및 토지 피복 자료의 공간해상도가 침수해석에 미치는 영향을 분석한다. 도시침수의 두가지 주요 요인인 내수침수와 외수범람 중에서 극한 강우에 의한 내수침수해석 사례만을 주요 연구 범위로 한다. 초고해상도 입력자료의 격자기반 도수 해석 모형으로는 운동파 기반의 2차원 지표 흐름 해석 모형을 적용하고, 초고해상도 모의의 효율적 계산을 위해 하이브리드 병렬 컴퓨팅 기술을 이용한다. 초고해상도 입력자료 적용 사례 대비, 공간해상도 저하에 따라 침수 면적이나 깊이 등에서 어떤 변화가 있는지 정량적으로 검토한다. 또한, 강우의 강도 및 공간분포가 초고해상도 도시 홍수 해석에 미치는 영향에 대해서 분석한다. 모의 결과로부터 도시 홍수 해석시 거리 단위(street-level) 정확도의 재현을 위해 적정한 공간해상도를 분석하고, 초고해상도 도시 홍수 모의를 이용한 기후변화에 따른 극한 홍수의 도시지역 영향 분석 및 회복력 개선 관련 연구의 가능성에 대해 논의한다.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.16 no.6
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• pp.420-433
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• 2023

With the development of ICT technologies, various systems and services based on data have been introduced. Also, raising the importance of technologies that provide trust to a data, infrastructure, and services. for ICT services. However, in the existing ICT service environment, there is no way to objectively judge and manage the trust of various components (content, infrastructure, process, service provider, etc) that constitute a specific service, and there is a limitation that we can only rely on the service provider's own quality standards. This paper provides requirements, functional archtecture, and procedures for providing reliable ICT services from the perspective of ITU-T international standards. Trust-enabled service provisioning adds additional functions for providing trust to existing ICT service entities (service resources, stakeholders, and users), collecting, analyzing, and providing trust related information. Therefore, a users can consider the trust of various service components based on analyzed trust information based on their trust requirements.

• 한국사회복지학회:학술대회논문집
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• 2000.04a
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• pp.615-628
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• 2000

It is said that stress is the threat of peace and excess of resources which man has from special relationship between individual and environment. This study is for suggesting the method of intervention of the clinical social work service concerning stress for the adolescents who can conceive looking into the relationship between adolescent pregnancy and stress through the sundry records for them. When the change of making into parents from pregnancy overlapped with stress in the cycle of life as an adolescent period itself, the accumulated stress grows much bigger. The repeated change causes an obscurity of individual role and worsens stress and brings confusion on a priority ranking of developmental task. The pregnancy of adolescence has a demoralizing influence upon the adolescents themselves who are going to be adults, their children, and society. These negative effects won't be end in a short period so the effort of intervention in necessary to improve the coping skills and adaptability of pregnant adolescents. In case of pregnant adolescents, the approach of personal counsel is not just enough and effective prevention program can be better alternative and purpose at the same time. This intervention protects adolescents from the distress which can be easily disclosed after delivery and contribute to promote a good mental health of adolescents who will grow to be adults later. After all it implies the necessity of stress management program which can improve the coping ability against stress and develop positive recognition for the pregnant adolescents. Therefore much profounder study for practical intervention program, implementation, and evaluation is necessary with the conclusion which has the results of this literature study.