• 한국가족관계학회지
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• 제23권1호
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• pp.3-24
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• 2018

Objective: This study examined the change of informal labeling self-respect, depression/anxiety, and aggression of adolescents over time and relationship between the intercept and the growth of the variables. Method: 4-year longitudinal panel data(n=2,699), Korea Youth Panel Survey (KYPS), were analyzed to verify the influence of informal labeling on self-respect, depression/anxiety, and aggression of adolescents. Through latent growth modeling, temporal change of the variables was examined. Results: Analytic results are as follow. First, the initial status of informal labeling had a negative impact on the initial status of self-respect. The slope of informal labeling also had a negative impact on the slope of self-respect. In contrast, the initial status of informal labeling did not have an significant impact on the slope of self-respect. Second, the initial status of informal labeling had a positive impact on the initial status of aggression. The slope of informal labeling had a negative impact on the slope of aggression. In contrast, the initial status of informal labeling did not have an significant impact on the slope of aggression. Third, the initial status of informal labeling had a positive impact on the initial status of depression/anxiety and a negative impact on the slope of depression/anxiety. The slope of informal labeling had a positive impact on the slope of self-respect. Conclusions: The results suggest the importance of informal labeling on self-respect, depression/anxiety, and aggression of adolescents.

• 대한간호학회지
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• 제47권3호
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• pp.392-405
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• 2017

Purpose: This study aims to develop a self-reflection program for nurses who have experienced the death of pediatric patients in the intensive care unit and to evaluate its effectiveness. Methods: The self-reflection program was developed by means of the following four steps: establishment of the goal through investigation of an initial request, drawing up the program, preliminary research, and implementation and improvement of the program. The study employed a methodological triangulation to evaluate the effectiveness of the program. Participants were 38 nurses who had experienced the death of pediatric patients (experimental group=15, control group=23); they were recruited using convenience sampling. The self-reflection program was provided over 6 weeks (6 sessions). Data were collected from April to August, 2014 and analyzed using t-tests and content analysis. Results: The quantitative results showed that changes in personal growth (t=-6.33, p<.001) and burnout scores (z=-2.76, p=.005) were better in the experimental group compared to the control group. The qualitative results exhibited two themes, namely "personal growth" and "professional growth", and ten sub-themes. Conclusion: The self-reflection program developed by this study was effective in helping nurses who had experienced the death of pediatric patients to achieve personal growth through self-reflection, and it was confirmed that the program can be applied in a realistic clinical nursing setting. Furthermore, it can be recommended as an intervention program for clinical nurses.

• 한국건설순환자원학회논문집
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• 제8권4호
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• pp.475-482
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• 2020

본 연구에서는 결정성장형 자기치유 고상캡슐의 코어조성비에 따라 3수준의 고상캡슐을 제조하였으며, 결정성장형 자기치유 고상캡슐을 혼합하여 시멘트 모르타르를 제조하였다. 제조된 고상캡슐은 시멘트 질량의 3%와 혼합하여 시멘트 모르타르의 균열 유도 재령에 따른 치유 특성을 평가하였다. 결정성장형 자기치유 고상캡슐을 혼합한 시멘트 모르타르의 균열 유도 재령에 따른 균열치유 특성을 평가한 결과, 7일 재령 동안 반응하지 않은 수화물질이 남아있기 때문에 고상캡슐과 혼합된 시멘트 모르타르의 자기치유 성능은 28일 재령 대비 7일 재령이 증가한 것으로 나타났다.

• 디지털융복합연구
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• 제16권10호
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• pp.323-332
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• 2018

본 연구는 자기성장집단상담프로그램을 실시하여 여중생의 자아존중감과 학교생활적응에 미치는 효과를 규명하는데 목적을 두었다. 이를 위하여 자료수집은 G도, K시에 소재한 여자중학교 1학년 24명을 대상으로 2017년 10월 19일부터 12월 28일 까지 진행하였다. 연구도구는 자아존중감, 학교생활적응 척도를 사용하였으며, 자료분석은 실수와 백분율, 평균 및 표준편차, t검증을 이용하였다. 주요 연구결과는 다음과 같다. 자기성장집단상담프로그램이 자아존중감에 미치는 효과는 프로그램 사후에 실험집단이 통제집단보다 높게 유의한 차이(p<.01)가 나타났으며, 학교생활적응에 미치는 효과는 교사관계와 학교수업에서 프로그램 사후에 실험집단이 통제집단보다 높게 유의한 차이(p<.05)를 보였다. 이러한 결과는 자기성장 집단상담프로그램을 통해 여중생의 자아존중감과 학교생활적응의 향상을 보이므로 자기성장집단상담프로그램의 과학적 근거를 제시하는 의미가 있다고 시사된다. 추후 다양한 청소년을 대상으로 한 자기성장집단상담프로그램의 개발 연구의 필요성을 제언한다.

• ETRI Journal
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• 제36권3호
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• pp.450-459
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• 2014

In this paper, we present a new, easy-to-generate system that is capable of creating virtual 3D tree models and simulating a variety of growth processes of a tree from a single, real tree image. We not only construct various tree models with the same trunk through our proposed digital image matting method and skeleton-based abstraction of branches, but we also animate the visual growth of the constructed 3D tree model through usage of the branch age information combined with a scaling factor. To control the simulation of a tree growth process, we consider tree-growing attributes, such as branching orders, branch width, tree size, and branch self-bending effect, at the same time. Other invisible branches and leaves are automatically attached to the tree by employing parametric branch libraries under the conventional procedural assumption of structure having a local self-similarity. Simulations with a real image confirm that our system makes it possible to achieve realistic tree models and growth processes with ease.

• 한국전기전자재료학회논문지
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• 제18권6호
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• pp.527-531
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• 2005

Fully coherent self-assembled InAs quantum dots(QDs) grown on Si (100) substrates by atmospheric pressure metalorganic chemical vapor deposition(APMOCVD) were grown and the effect of growth conditions such as growth rate and growth time on quantum dots' morphology such as densities and sizes was investigated. InAs QDs of 30 - 80 nm in diameters with densities in the range of (0.6 - 1.7) x $10^{10}\;cm^{-2}$ were achieved on Si substrates and InAs layer was changed from 2 dimensional growth to 3 dimensional one at a nominal thickness less than 0.48 ML. This is attributed to the higher ambient pressure of APMOCVD suppressing of In segregation from the 2 dimensional InAs layer. This In segregation looked to disturb the dot formation especially when the growth rate was low so that the dots became less dense and bigger as the growth rate was lower.

• KDI Journal of Economic Policy
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• 제36권2호
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• pp.137-174
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• 2014

우리 경제가 고령화 등으로 인해 과거와 같이 요소투입을 통한 경제성장이 어려워지면서 총요소생산성의 중요성이 더욱 부각되고 있으나, 성장회계를 이용한 기존 연구들이 각기 다른 방법론을 사용함에 따라 2000년대의 생산성 증가세가 1990년대에 비해 둔화되었는지 여부에 대해 상당히 다른 결과들이 제시되고 있다. 본 연구에서는 기존 연구에서 사용한 방법론의 공통적인 부분 또는 중간점을 기반으로 기본모형을 설정하고, 방법상의 각 논점들이 총요소생산성 추계 결과에 어떠한 영향을 미치는지 분석하였다. 분석 결과, 2000년대의 생산성 증가세 추이에 대한 평가에 가장 중요한 영향을 미치는 요인은 요소소득 분배율이며, 다음으로 자본스톡의 영향이 크게 나타났다. 요소소득 분배율의 극단적인 경우를 배제하고, 대다수 연구들의 자본스톡 추계를 사용하는 경우, 2000년대의 총요소생산성 증가율이 1990년대와 유사한 수준이라는 결과를 얻을 수 있었다. 이러한 분석 결과를 감안할 때, 향후 엄밀한 총요소생산성 증가율을 추정하기 위해 신뢰할 만한 요소소득 분배율과 자본스톡 추계에 대한 연구가 필요하다고 사료된다. 특히 개선작업이 진행 중인 자본추계에 비해 요소소득 분배율을 엄밀히 추정하기 위한 정책적 노력은 아직 부족한 것으로 보인다.

• 한국재료학회:학술대회논문집
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• 한국재료학회 2009년도 춘계학술발표대회
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• pp.8.1-8.1
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• 2009

The self-assembly of peptide-based building blocks into nanostructures is an attractive route for fabricating novel materials because of their capacity for molecular recognition and functional flexibility as well as the mild conditions required in the fabrication process. Among various peptide-based building blocks forming nanostructures, the simplest building blocks are aromatic dipeptides like diphenylalanine, which can readily self-assemble into nanotubes in aqueous solutions at ambient conditions. Recently, we have developed a high-temperature solid-phase self-assembly process for diphenylalanine. Through this novel process, we succeeded in the growth of vertically well-aligned, uniform nanowires from amorphous peptide thin film. To demonstrate the versatility of our approach, we also fabricated a micropattern of peptide nanowires by combining our solid-phase growth method and simple soft lithographic techniques. We believe that our studies on peptide self-assembly will provide a new horizon for peptide-based nanofabrication.

• 한국콘텐츠학회논문지
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• 제16권11호
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• pp.499-509
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• 2016

본 연구는 유방암 환자의 외상 후 성장에 영향을 미치는 요인을 조사하고자 진행되었으며 자료수집은 인천광역시 내 대학병원 외래를 내원하여 유방암 진단을 받고 치료과정 중에 있는 유방암 환자 100명을 대상으로 하였다. 연구도구는 한국어판 외상 후 성장 척도(K-PTGI), 사회적지지(mMOS-SS), 유방암 자가관리에 대한 자기효능감 척도(SESSM-B)와 대처행동(CCQ) 도구를 사용하였다. 자료의 분석은 t-검정, ANOVA, Pearson 상관분석, 단계적 다중회귀분석을 하였다. 연구결과 외상 후 성장 정도는 5점만점에 평균 3.4(${\pm}0.9$)점이었다. 외상 후 성장은 사회적 지지, 유방암 자가관리에 대한 자기효능감, 대처행동과 통계적으로 유의한 양의 상관관계를 보였다. 단계적 다중회귀분석에서, 치료이행 자기효능감과 긍정적 재구조화 대처행동이 유방암환자의 외상 후 성장 영향 요인으로 나타났고, 이들 변수들의 설명력은 29%였다. 본 연구 결과를 바탕으로 유방암환자의 외상 후 성장을 향상시킬 수 있는 간호 중재 개발을 고려할 필요가 있겠다.

• Journal of Smart Tourism
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• 제2권3호
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• pp.5-15
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• 2022

As the utilization of technology in the tourism field becomes familiar, it greatly impacts people's tourism activities. These changes could also affect the behavior of tourists during the pandemic. To investigate consumers' adaptation to the self-service technology (SST) environment during the coronavirus disease of 2019 (COVID-19) pandemic, we adopted a model of absorptive capacity as the main framework for empirical research. To track the social effects of COVID-19, consumers' behavioral intentions for four different points in time are collected. The analysis was conducted using latent growth and structural equation modeling. We set the organizational and environmental characteristics as the first step of the model, with assimilation and trust as a middle step. Intention to use a kiosk is placed at the final step as an exploit. Findings indicate that organizational characteristics and environmental characteristics positively influenced assimilation and trust, except for environmental characteristics. Consumers' assimilation in SST encourages immediate intention to use a kiosk. Consumers' trust in kiosks positively impacts both immediate and continuance intention to use a kiosk during COVID-19.