• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2002년도 학술.기술논문발표회
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• pp.55-58
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• 2002

This study is to analyze the influence of correction factor and specimen thickness on the fundamental properties of porous concrete. Results of this study were shown as follows; 1) As correction factor decrease, compaction time according to correction factor and specimen thickness decrease. Also, though correction factor is same, as specimen thickness increase, compaction time increase. So It mutt be considered that the influence of compaction time according to correction factor and specimen thickness. 2) As correction factor decrease, difference of measured thickness and designed thickness according to correction factor and specimen thickness decrease. Also, correction factor of aggregate of 10~l5mm is smaller than that of 5~l0mm. So It must be considered that the influence of correction factor according to size of aggregate.

• 한국실내디자인학회논문집
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• 제26호
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• pp.57-63
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• 2001

The aim of this study is to measure sensitivity reaction of human being with a physical properties of color and average size of particle for building materials and predict the influence of color and average size of particle in evaluation of building materials. As a results, 1) In results of qualitative evaluation construction, all 16 adjectives were extracted by higher evaluation items and ,total 14 adjectives were extracted as evaluation adjectives except adjectives of a contrary concept in each other. 2) According to the result of factor analysis, all 4 group of $\ulcirner$potency$\lrcirner$, $\ulcirner$activity$\lrcirner$, $\ulcirner$evaluation$\lrcirner$, $\ulcirner$warmness$\lrcirner$ were extracted. In this time, $\ulcirner$potency$\lrcirner$ as the first factor indicates the most hign original value. Consequently, $\ulcirner$potency$\lrcirner$ factor have an hign influence in evaluation of building materials. 3) As a influence analysis of evaluation variable by evaluation item $\ulcirner$potency$\lrcirner$ factor have an high influence by influence of average size of a particle, $\ulcirner$activity$\lrcirner$ factor have influence hignly by influence of brightness, $\ulcirner$evaluation$\lrcirner$ factor have an hign influence by influence of average site of a particle and the hue, $\ulcirner$warmness$\lrcirner$ factor have an hign influence mainly by influence of the hue

• Human Ecology Research
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• 제53권1호
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• pp.1-16
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• 2015

This study aims to examine the effects of high school students' time management behaviors on their satisfaction with educational consumption and school life. Three hundred seventy-six high school students in Seoul participated in this investigation. The SPSS ver. 19.0 program was adopted for the descriptive analysis, factor analysis, Cronbach's ${\alpha}$, and multiple regression analysis. The results of the present study can be summarized as follows: first, the levels of time management behavior, satisfaction with educational consumption at school, and satisfaction with school life were relatively high. Second, an analysis of the relative influence on satisfaction with educational consumption revealed that the students' time management behavior was the most influential factor, followed by academic achievement. As the levels of time management behavior and academic achievement were high, the level of satisfaction with educational consumption was high. Finally, an analysis of the relative influence of satisfaction with school life also revealed that the students' time management behavior was the most influential factor, followed by academic achievement. Based on the findings, that is, the effects of high school students' time management behavior and other involved variables on their satisfaction with educational consumption and school life, a future study can present specific ways to enhance the level of satisfaction with educational consumption and school life.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.383-386
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• 2007

최근 국내 건설공사에 있어서 공동주택이 차지하는 비율은 나날이 증가하고 있다. 건설공사에서 공기는 직접적으로 건설사업비에 영향을 미치기 때문에 매우 중요하다. 따라서 국내에서도 공기단축을 위해 많은 노력을 하고 있는 실정이다. 이러한 추세에 따라서 공기를 단축하기 위해서는 공기에 영향을 미치는 중요요인을 분석하고, 도출된 요인들을 효과적으로 평가하기 위한 방법이 필요하다. 본 연구에서는 공동주택의 공기단축에 미치는 영향요인을 평가하는 방법으로 FMEA 기법을 제안하고자 한다.

• Communications for Statistical Applications and Methods
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• 제6권1호
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• pp.33-42
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• 1999

A method of detecting influential observations in principal factor analysis is suggested. it is based on a perturbation of the empirical distribution function and an adoption of the local influence method. An illustrative example is given.

• 한국강구조학회 논문집
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• 제9권2호통권31호
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• pp.229-235
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• 1997

임의항복강도가 강구조물의 에너지소산능력에 미치는 영향을 파악하기 위해 본 논문에서는 7개의 강뼈대구조물을 모델링하여 응답스펙트럼해석법에 적용되는 거동계수를 산출하고 그 분포상태를 결정하였다. 또한 지진하중의 임의성이 거동계수에 미치는 영향과 비교하기 위해 주어진 스펙트럼을 만족하는 4개의 인공지진을 시뮬레이션하여 적용하였다. 본 연구의 특성상 방대한 양의 시간-이력계산을 수행하여야 하므로 근사해법인 시간-이력해석법을 개발하여 신뢰도를 검토하고 적용하였다.

• 복식문화연구
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• 제22권5호
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• pp.848-861
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• 2014

This research was designed to conduct research to apprehend fashion brand's mobile SNS characteristics in depth and the related consumer psychology and behaviors such as brand attachment and brand loyalty. The fashion brand's mobile SNS characteristics were differentiated from the web-based fashion brand's SNS. This study targeted women in their 20s using mobile Facebook and mobile Twitter, and residing in Seoul or Gyeonggi province. Total 412 observations were collected through online survey. The major findings of the study were as follows. First, as the characteristics of fashion brand's mobile SNS, ease of fashion data storage, fashion recentness, fashion usefulness, and fashion accessibility were extracted. As the factors of the flow, time distortion/focused attention and playfulness were extracted. Second, the fashion recentness and fashion usefulness showed positive influence to time distortion/focused attention factor in the flow. All four fashion brand's mobile SNS characteristics showed positive influence to playfulness factor in the flow. Third, time distortion/focused attention factor and playfulness factor both showed positive influence to brand attachment and brand loyalty from using fashion brand's mobile SNS. Fourth, brand attachment had positive influence to brand loyalty from using fashion brand's mobile SNS. Based on the above results, this study provided practical ways to develop effective mobile SNS marketing strategies in fashion brand. Also, this study demonstrated feasible future contents and necessary improvement for fashion brand's mobile SNS, which holds marketing implications.

• 가족자원경영과 정책
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• 제21권3호
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• pp.141-159
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• 2017

The main purpose of this study is to investigate factors that influence sleep duration and sleep time poverty in terms of family characteristics, child characteristics, and time use. A series of data analyses were conducted on children's time use in two-parent families based on the 2013 Korean Children and Youth Panel Survey. One major finding is that children's sleep duration and the probability of having a sleep time poverty are related to their mothers' job classifications. The factors influencing the duration of sleep time and the sleep time poverty are similar in terms of family characteristics and children's time use. The mother's job classification, family income, number of younger siblings, number of older siblings, children's private tutoring hours, computer game hours, and TV hours are statistically significant factors affecting the duration of sleep time and the probability of having a sleep time poverty. However, the factor with greatest influence on sleep time duration is private tutoring hours and the factor most affecting sleep time poverty is computer game hours. The mother's job classification is a relatively powerful determinant for predicting her children's sleep duration and sleep time poverty.

• 한국산업융합학회 논문집
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• 제7권2호
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• pp.161-166
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• 2004

The impact factor of bridges is analyzed based on experimental data to examine the characteristics of the dynamic responses of bridges. The experimental impact factors are compared with the impact factor of Korean Highway Design Specification and Japan T-load in terms of the span length. According to the superstructural types of bridges, the variation of the impact factor is analyzed. When vehicles are passing on a bridge, the dynamic effect acts on the bridge impact factor more than at the time of design because of the velocity of vehicles, the surface roughness reduction due to the deterioration of the bridge deck pavement, and the disconnection of the bridge entrance and the expansion joint. Because the actual value is greater than the expected value at the time of design, the dynamic response of the bridge accelerates the deterioration of the bridge due to the accumulation of fatigue, and the bridge's life-time is shortened and can have an influence on the serviceability and safety of the bridge.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2008년도 추계 학술발표회 제20권2호
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• pp.593-596
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• 2008

콘크리트의 블리딩은 재료분리의 일종으로서 콘크리트 품질뿐만 아니라 내구성을 저하시키는 원인으로 작용한다. 본 연구에서는 콘크리트 블리딩에 영향을 미칠 것으로 예상되는 시멘트 및 믹싱시간의 두 요인의 변화에 따른 특성을 파악하여 블리딩 제어기술 확보를 위한 기초자료를 제공하고자 한다.연구결과에 의하면, 믹싱시간이 증가할수록 블리딩율도 증가하는 추세를 나타내고 있었다. 블리딩양(믹싱시간 90초)은 시멘트 특성에 의한 차이가 뚜렷하게 나타나고 있었으며, 콘크리트 특성값(블리딩율, 슬럼프 및 재령 3일 압축강도)은 믹싱시간과 비례적인 관계가 있었다. 또한, 슬럼프 손실율과 믹싱시간은 반비례적인 관계가 존재하였고, 압축강도값은 초기재령에서만 믹싱시간에 의한 영향을받고 있었다.향후, 최적 믹싱시간 도출을 위한 다양한 검토가 필요할 것으로 판단된다.