• 경영과정보연구
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• 제19권
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• pp.223-241
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• 2006

This study has two purposes. One is to systematize a number of referents and to examine the types of comparisons. The other is to examine categories of comparative standards such as inputs in equity theory. In pay comparison process, referents and inputs are very important elements. The first factor analysis is related to referents, which include 18 variables in 6 categories were subjected to factor analysis. 3 factors emerge with an eigenvalue of 1.0 or greater. Factor I, economic need, includes referents in personal worth and system referent. Factor II, market comparison, includes internal and external referents except one variable(external-peer). Between internal and external referents is not distinguished. This result is corresponded with Hills'(1980) and Hong's(1995) findings. FactorIII is named 'historical/social comparisons'. 14 inputs are subjected to the second factor analysis. 3 factors emerge with an eigenvalue of 1.0 or greater. The 5 variables loading on factor I, equity standard, are responsibility, competency, effort, outcome, and skill. FactorII, equality standard, includes age, gender, and education. FactorIII, seniority standard, includes career and company tenure. All the factors are positively associated with each other. Especially, personal worth is associated with equity standard(r=0.50466). Internal and external referents are associated with any comparative standard.

• Wind and Structures
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• 제30권3호
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• pp.219-229
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• 2020

Net pressures on roofs and walls of buildings are dependent on the internal and external pressure fluctuations. The variation of internal and external pressures are influenced by the size and location of the openings. The correlation of external and internal pressure influences the net pressures acting on cladding on different parts of the roof and walls. The peak internal and peak external pressures do not occur simultaneously, therefore, a reduction can be applied to the peak internal and external pressures to obtain a peak net pressure for cladding design. A 1:200 scale wind tunnel model study was conducted to determine the correlations of external and internal pressures and effective reduction to net pressures (i.e., net pressure factors, F_C) for roof and wall cladding. The results show that external and internal pressures on the windward roof and wall edges are well correlated. The largest ${\mathcal{C}}_{{\check{p},net}$, highest correlation coefficient and the highest F_C are obtained for different wind directions within 90° ≤ θ ≤ 135°, where the large openings are on the windward wall. The study also gives net pressure factors F_C for areas on the roof and wall cladding for nominally sealed buildings and the buildings with a large windward wall opening. These factors indicate that a 5% to 10% reduction to the action combination factor, K_C specified in AS/NZS 1170.2(2011) is possible for some critical design scenarios.

• 한국구조물진단유지관리공학회 논문집
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• 제13권2호통권54호
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• pp.153-164
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• 2009

본 논문에서는 2경간 강합성교량의 내하력을 향상시키기 위해, 외부 긴장재로 보강하는 방법을 제시하였다. 긴장재를 직선 배치하였을 경우, 외부하중으로 인한 증가 프리스트레스력을 가상일의 원리로 구하였고, 증가 프리스트레스를 고려한 내하율 산정식을 제시하였다. 제안된 내하율 산정식으로부터, 긴장재 개수와 초기 긴장력의 계산방법을 제시하였다. 본 방법을 2경간 강합성교량에 적용하여, 산정식의 타당성과 합리성을 검증하였다.

• 한국조리학회지
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• 제11권4호
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• pp.30-45
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• 2005

This study is to explore the effects of business environment upon corporate image. Customers of foodservice establishments are selected as a population and six famous family restaurants located in Seoul were selected to evaluate the population. Accordingly, the purpose of the study is to survey satisfaction with corporate image of foodservice establishments and six famous family restaurants, to evaluate the satisfaction with corporate image, and to find a plan of raising corporate image. 240 samples were distributed and 194 samples were collected among them. 182 valid samples were selected for the research. As a result of factor analysis for business environment, internal environment factor, external environment factor, addition environment factor were extracted. There was no significant difference by sen, age, schooling, occupation, average income by month, and number of visiting foodservice establishments after examining the difference of establishment business environment by demographic characteristics. Analysing the effects of business environment upon corporate image revealed that the effects of business environment had effects upon corporate image in order of internal environment factor(.531), external environment factor(.360), and addition environment factor(.285).

• Structural Engineering and Mechanics
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• 제13권3호
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• pp.329-343
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• 2002

In this research, the dynamic stability of an orthotropic elastic conical shell, with elasticity moduli and density varying in the thickness direction, subject to a uniform external pressure which is a power function of time, has been studied. After giving the fundamental relations, the dynamic stability and compatibility equations of a nonhomogeneous elastic orthotropic conical shell, subject to a uniform external pressure, have been derived. Applying Galerkin's method, these equations have been transformed to a pair of time dependent differential equations with variable coefficients. These differential equations are solved using the method given by Sachenkov and Baktieva (1978). Thus, general formulas have been obtained for the dynamic and static critical external pressures and the pertinent wave numbers, critical time, critical pressure impulse and dynamic factor. Finally, carrying out some computations, the effects of the nonhomogeneity, the loading speed, the variation of the semi-vertex angle and the power of time in the external pressure expression on the critical parameters have been studied.

• 치위생과학회지
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• 제10권5호
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• pp.323-327
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• 2010

본 연구는 지역사회 주민이 치과의료기관을 선택할 때 중요하게 작용하는 요인을 파악하고, 향후 치과의료기관의 합리적인 경영전략을 수립하는데 필요한 기초적인 자료를 얻고자 주민 238명을 대상으로 자기기입식 설문지를 이용하여 조사 분석한 결과는 다음과 같다. 1. 치과의료기관 선택 시 치과의사의 성실성, 친절 등에 대한 평판을 가장 높게 고려하는 것으로 나타났고, 치료의 질은 두 번째로 높게 고려하였으며, 치과의사의 연령이나 성별은 가장 낮게 고려하였다. 2. 남녀 모두 의료기관의 외적요인보다는 의료기관의 내적요인을 더 높게 고려하는 것으로 나타났고, 남자보다는 여자가 외적요인, 접근성, 그리고 내적요인 모두 더 높게 고려하는 것으로 나타났지만 통계적으로 유의하지는 않았다. 3. 연령이 46세 이상인 군이 23세 이하, 24-35세인 군에 비해 치과의료기관 선택요인 중에서 접근성을 통계적으로 유의하게 높게 고려하였다.

• 한국주거학회논문집
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• 제22권3호
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• pp.15-24
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• 2011

The purpose of the research is analyzing how the emotional factors of the external apartment design can be influenced by the consumers' emotional reaction, and analyzing how the emotional reaction of the consumers will affect the expenditure of the apartment in the upcoming future. For this purpose, first, external surrounding factors of the apartment are extracted and then classified into three major design categories (instinctive, behavioral, and reflective design), and each factor is evaluated by the emotional evaluation. The scope of the research is restricted to the apartments in Daegu city which are built by Top 3 construction companies from the analysis of construction-working rank (May, 2010). The residential-expenditure data are extracted from D-univ. students, in accordance with the satisfaction of the external surroundings and emotional-reaction against the emotional-design factors of the apartment. This research is done by the statistic analysis program SPSS17.0. This shows that difference of emotional design by the apartment external space requisites will be significance as fundamental data for development of application and planning and apartment external space of emotional design by the apartment external space in the future.

• 한국정보통신학회논문지
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• 제15권10호
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• pp.2065-2071
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• 2011

본 논문에서는 마이크로스트립 선로 공진기와 입출력 단자의 결합 위치에 따른 공진기의 외적 양호도를 위상 특성을 이용하여 구하는 방법을 제시한다. 마이크로파 필터 설계에서 단자 접속 구조로 많이 이용되는 접합 선로 구조와 결합 선로 구조에 대해 단자의 위치와 선로의 폭과 간격에 따른 결과를 제시한다. 이 방법으로 정확한 $Q_e$ 값을 얻을 수 있었고, 이 결과는 결합공진기 필터 설계에 응용될 수 있다.

• 한국구조물진단유지관리공학회 논문집
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• 제11권5호
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• pp.123-134
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• 2007

본 논문은 기존 강합성 교량의 내하력 향상을 목적으로 외부 긴장재의 초기 긴장력 결정 방법을 제시하였다, 외부 긴장력은 콘크리트 슬래브 재시공 전과 후에 각각 적용하였다. 활하중에 의하여 발생하는 증가 프리스트레스력을 고려한 내하율식을 제안하여 긴장재 개수와 초기 긴장력의 결정 과정을 제시하였다. 기존 강합성 교량의 내하율 향상에 적용하여 그 타당성을 입증하였다.

• Wind and Structures
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• 제39권3호
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• pp.191-205
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• 2024

To investigate the wind load characteristics of a large-span spherical shell structure, a rigid model pressure test was conducted in a wind tunnel laboratory. The study aimed to examine the impact of various external structures and internal stacking forms on the wind loads of a spherical shell structure in a practical engineering project. This project features two adjacent spherical structures, each spanning 130 m and standing 67 m tall. These two structures are connected by trestles and a transfer station. Variations in the shape factor and the integral force coefficient of the structure were compared and analyzed under different test cases. The results indicate that when two structures are arranged in series, with the adjacent structure positioned upstream, the shape factor of the structure is most affected, resulting in a significant reduction effect at the bottom of the windward surface. Compared to the external structure, the impact of various internal stacking forms on the shape factor of the structure is relatively weak. The adjacent structure significantly improves the wind resistance of the main structure. The integral force coefficient of the structure reaches its peak when internal stacking is full and is at its lowest when there is no internal stacking.