• 감성과학
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• 제25권4호
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• pp.139-156
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• 2022

This study aimed to examine the cause and consequence of emotional labor strategies based on the emotional labor framework. To investigate the boundary condition of the current research model, the study proposed that job autonomy would moderate the effects of emotional labor on employees' well-being. To achieve the purpose of the study, it was first tested whether neuroticism and extroversion of employees predicted the focal outcomes (i.e., burnout and work engagement) via distinct emotional labor strategies. Second, the moderation effects of job autonomy were tested for each emotional labor strategy in predicting the focal outcomes. Third, the conditional indirect effects of job autonomy on the mediation process were examined. The results revealed that surface acting partially mediated the relationship between neuroticism and burnout, whereas deep acting fully mediated the relationship between extraversion and work engagement. Regarding the moderating effects of job autonomy, it significantly moderated the relationship between surface acting and burnout and between deep acting and work engagement. In addition, from the moderated mediation effects, the conditional indirect effects of job autonomy were significant. Finally, theoretical and practical implications are discussed and limitations and future research directions were suggested.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제21권2호
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• pp.154-159
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• 2015

과거 어플리케이션 다양성만 지향하던 사용자의 수요가 최근 스마트폰의 고도화된 센서와 기계학습이 결합된 지능형 어플리케이션으로의 선호로 전향되고 있다. 이러한 경향을 반영하여 본 논문에서는 스마트폰에 축적된 사용자의 라이프로깅 데이터에서 의미있는 정보를 추출하고, 추출한 정보를 통해 사용자의 인지적 행동을 대신 가능한 인지 에이전트(Cognitive Agent)개념의 스마트폰-사용자 상호작용 사용자 맞춤 위치-시간-행동 추론 기법을 제안한다. 제안 방법은 사용자의 라이프로깅데이터를 DPGMM (Dirichlet Process Gaussian Mixture Model) 클러스터링 기법으로 사용자 주요 관심지역 POI(Point of Interest)를 자동으로 추출하고, 평생학습이 가능한 강화학습의 한 종류인 POMDP(Partially Observable Markov Decision Process)를 사용하여 사용자의 위치-시간-행동을 추론 한다. 제안 방법으로 구현한 사용자 맞춤 일과 계획 시스템의 시간별 사용자 일과 추론 결과는 70%이상의 성능을 보였으며, 하루 일과 계획 지능형 서비스의 새로운 방향을 제시하고 있다.

• 한국전산구조공학회논문집
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• 제24권6호
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• pp.617-627
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• 2011

본 논문은 기 수행된 1:5축소 10층 RC 공동주택의 지진모의 실험결과에 비추어 근래 개발된 PERFORM-3D를 이용하여 해석적 모사를 시도하였다. 해석과 실험의 상관관계 분석에 의해 다음과 같은 결론을 얻었다. (1) 재현주기 50년 지진에 대해 실험과 해석이 매우 유사한 탄성거동을 보였다. 반면 우리나라의 설계지진과 최대지진에 대해서는 비선형 거동을 보이긴 하지만 실험의 최대응답과 강성 및 강도 저하를 제대로 모사하지 못하였다. 이의 주된 이유는 슬라브 거동을 탄성으로 가정하였기 때문이라고 판단된다. (2) 탄성영역 거동에 대해 해석모델이 전체 거동을 비교적 잘 모사하는 반면, 벽체 상호간에 걸친 힘의 분포에 있어서 실험과 상당한 차이를 보여주었다. (3) 최대지진에서 벽체의 전단변형은 비교적 잘 모사한 반면 휨변형의 경우 10배정도 과장되었다. 이는 일부 해석모델에서 인방보를 무시한 결과로 추정된다.

• 한국조경학회지
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• 제30권4호
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• pp.9-18
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• 2002

This study investigated the influential range of landmarks and the relationship between landmarks and cognition factor so as to offer basic data to be used for the effective use and the management of landmarks. In this study, eighteen famous landmark in Seoul were selected and analyzed. The result of this study can be summarized as follows : 1) First, eighteen determining elements of cognition factors were selected via documents survey. Second, general cognition factors of landmarks were analysed using these elements through questionnaires to specialists. As a result of factor analysis, historic cultural factor, scale factor, visual form factor, locational factor and uniqueness factor were revealed. 2) According to revealed cognition factor, eighteen landmarks are categorized into four types using MDS method via questionnaire to resident in Seoul city. These four types of landmarks are: type I that are recognized by historic cultural factor; type II that are recognized by scale factor; type III that are recognized by uniqueness factor; and type IV that are recognized by visual form factor. 3) As the result of regression, the influential range of landmarks were revealed at about a 10km radius(type I : 12km type II : whole area of Seoul city≒15km, typeIII : 8.7km, typeIV : 8.5km). 4) As a result of analysing the correlation between the influential range and the cognition factor through multiple linear regression analysis, the locational factor is the main factor affecting the influential range of landmarks in every type. The uniqueness factor comes next, which affects influential range partially. 5) Except type 1, as a result of analysing the correlation between influential range and the physical heights of landmarks, a quadratic equation is revealed, showing that the influential range of landmarks over 200 meters in height shows a radical change. Landmarks can be used as reinforcement tools of legibility, effective tools for landscape management and for the improvement of a community's image. This study on the influential range of landmarks and main cognition factor can be utilized as a landmark management plan and in urban planning, such as a new town plan.

• 한국정보시스템학회지:정보시스템연구
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• 제15권3호
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• pp.55-85
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• 2006

The purpose of this study Is to investigate what types of internal capabilities are mainly supported by information system applications that have been introduced in organizations during the last three years, and to examine the relationships between information systems' support on internal capabilities and organizational performance are differed with the organizational size and the type of industry. This study is also to suggest a few research propositions that can be applied to empirical studies dealing with the relationship between organizational performance and information systems' support on organizational capabilities in the future. To accomplish these research purposes, this study performed a survey and 101 responses were used for statistical analysis. The research results are as follows: First information systems' applications introduced into organizations during the most recent 3-year period, were mainly used to support the production/service capability, leading to an improvement of both the product and the service and reinforcement of task efficiency in the organizations. Second the support of information systems' applications on the production and service capability of organizations influenced organizational performance in a positive manner. Third, the relationship between organizational performance and support of information systems on organizational capabilities was partially differed by organizational size and the type of industry, the organization is involved in. Fourth, two research propositions that can be applied for empirical studies in the future were suggested with regard to the relationship between organizational performance and support of information systems on organizational capabilities, based on the statistical analysis.

• 대한토목학회논문집
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• 제5권1호
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• pp.133-139
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• 1985

본(本) 논문(論文)은 동일(同一)한 단면(斷面)과 동일(同一)한 철근비(鐵筋比)를 갖는 다섯 개의, 구형단면(矩形斷面)의 부분(部分) P.C. 보에 각각(各各) 다른 정도(程度)의 프리스트레스량(量)을 도입하므로써 얻어지는, 균열발생의 억제효과(抑制効果)와 전체(全體)시스템의 내하력(耐荷力) 증가효과(增加効果)를 실험(實驗)을 통(通)하여 확인(確認)하는데 있다. 실험결과(實驗結果), 프리스트레스를 가(加)한 보의 극한내하력(極限耐荷力)은 그렇지 않은 보의 그것보다 약간의 증가추세(增加趨勢)를 보이나, 이에 대한 결론(結論)을 내리기 위하여는 좀 더 많은 실험(實驗)데이타가 요구(要求)된다. 프리스트레스의 도입에 의한 균열폭의 억제효과는 확실하게 나타나며 아주 작은 양인 완전(完全)프리스트레스량(量)의 25%정도(程度)의 프리스트레스의 도입(導入)으로도 그렇지 않은 경우보다 사용하중하(使用荷重下)에서 50% 정도(程度)로 억제(抑制)할 수 있는 것으로 나타난다.

• 가정과삶의질연구
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• 제32권3호
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• pp.115-135
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• 2014

The purpose of this study was to develop a "Family Play Therapy Program" using puppets to decrease attachment problems for families with children having attachment problems and to examine its effectiveness. The participants were an experimental group of 16 individuals(8 children with attachment problems whose ages ranged from 4 to 5 and 8 mothers) and a control group of 16 individuals (8 children with attachment problems whose ages ranged from 4 to 5 and 8 mothers). The experimental group was treated through the Family Play Therapy Program, which involved the use of puppets and was held for twelve sessions twice a week. The changes in the participants were measured in order to examine the effects of the program. The researcher measured children's emotional and behavioral expression(TBP), the mothers' sense of self(Self-Differentiation Scale), personal relationships(ECR-R), and the perception of family functions(ICPS-FFS) both before and after the FPT program and compared their differences. The MIM Rating Scale and Marschak Behavior Rating Scale were administered to examine the interactions between mothers and children, and 1:1 interviews were also conducted. The data thus gathered were used for non-parametric analysis(Mann-Whitney U test and Wilcoxon rank sum test)using SPSS WIN 17.0. The results of this study were as follows: First, the program had a positive effect on children's emotional expression. After the problem were over, negative emotional and behavioral expression in the experimental group decreased. Second, the program had a positive effect on mothers' self-differentiation and personal relationships. Third, the program had a positive effect on changes in the interaction behaviors between the mother and child. Fourth, the program had a partially positive effect on the responses from their group developmental stages, especially on the subscale of both a program for the reinforcement of mothers' emotions and family play program utilizing puppets.

• 한국강구조학회 논문집
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• 제19권4호
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• pp.413-423
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• 2007

기존의 층고절감형 합성보 시스템은 철골보의 웨브면에 바닥판을 삽입하여 시공하기 때문에 상대적으로 기존 합성보 형식과 비교하여 층고를 대폭적으로 줄일 수 있지만, 적용되는 철골보 춤이 제한되기 때문에 적용 가능한 스팬이 한정되어 있어 여러 가지 다양한 건축구조의 수요에 능동적으로 대처하기가 어려운 단점이 있다. 따라서, 본 연구에서는 기존의 층고절감형 합성보의 단점을 해결하기 위하여 합성보의 춤을 자유로이 조절할 수 있는 층고절감형 매입형 합성보를 개발하였다. 본 연구는 콘크리트에 매입된 강팡성형 철골보를 가지는 불완전 합성보의 휨거동에 관한 것이다. 총 5개의 실대형 실험체를 전단연결재 및 보강근의 사용유무, 슬래브 형식을 주요변수로 하여 실험을 수행하였다. 실험결과, 별도의 전단연결재를 설치하지 않은 실험체는 자체가 가지고 있는 기계적 화학적 부착응력으로 인해 $0.20{\sim}0.76N/mm^2$의 부착응력을 나타내었다.

• Advances in concrete construction
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• 제11권5호
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• pp.375-386
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• 2021

In this paper, a study of stability and health of a newly-built railway tunnel is presented. The field test was implemented to monitor the secondary lining due to the significant cracking behaviors influenced the stability and health of the tunnel structure. Surface strain gauges were installed for monitoring the status of crack openings, and the monitoring outputs demonstrated that the cracks were still in the developing stage. Additionally, adjacent tunnel and poor condition of surrounding rock were identified as the causes of the lining cracking by systematically characterizing the crack spatial distribution, tunnel site and surrounding rock conditions. Reconstruction of partial lining and reconstruction of the whole secondary lining were designed as the maintenance projects for different cracking regions based on the construction feasibility. For assessing the health conditions of the reinforced lining, embedded strain gauges were set up to continuously measure the strain and the internal force of the reconstructed structures. For the partially reconstructed lining, the outputs show the maximum tensile elongation is 0.018 mm during 227 days, which means the structure has no obvious deformation after maintenance. The one-year monitoring of full-section was implemented in the other two completely reconstructed cross-sections by embedded strain gauge. The outputs show the reconstructed secondary lining has undertaken the pressure of surrounding rock with the time passing. According to the calculated compressive and tensile safety factors, the completely reconstructed lining has been in reliable and safe condition during the past year after reinforcement. It can conclude that the aforementioned maintenance projects can effectively ensure the stability and health of this tunnel.

• 박물관보존과학
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• 제26권
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• pp.35-66
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• 2021

본 연구는 국립중앙박물관 소장 갑주(투구 2점, 갑옷 4점)에 대해 과학적 조사와 보존처리를 실시하고, 그 결과를 바탕으로 조선시대 중·후기 갑주의 구조적인 특징을 살펴본 것이다. 갑주는 유기물과 무기물이 함께 있는 복합 재질이므로, 보존처리는 각 재질의 안정한 조건이 서로 영향을 받지 않는 선에서 '조사·분석 → 오염물 제거 → 안정화 및 강화처리 → 손상 부위 보수 → 보관'의 과정으로 실시하였다. 갑주는 손상이 심한 상태였으나, 보존처리를 통해 안전한 보수 및 일부 부위의 복원을 완료하였다. 이 과정에서 확인된 내용을 바탕으로 조선 중기의 의상형 갑옷 일부(갑상)와 조선 후기의 포형 피갑, 조끼형 흉갑 그리고 투구에 사용된 재료 및 구조적 특징을 파악할 수 있었고, 이를 통해 제작 방법을 추정할 수 있었다.