• 복식문화연구
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• 제19권2호
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• pp.269-282
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• 2011

The purpose of this study was to compare consumer satisfaction by analyzing importance on characteristics of clothing, performance, and their inconsistency between Korea and the United States. The data was collected by using a survey based on three sages of pre-tests, and main survey conducted in The U.S and Korea. Data of 520 participants from each country (260 males and 260 females) was used. The results of this study is as follows: First, both consumers in Korea and U.S. showed five factors such as aesthetics/trend, body shape, practical use/wearing, care, and distorted. In performance factor of Korean students was consisted of wearing/care, aesthetics, body shape, distorted, and trend/symbolism while that of American students was consisted of wearing, aesthetics, body shape, trend/image factor, and distorted. Second, regarding importance rate, aesthetics/trend, practical use/wearing, care, and distorted affected satisfaction of Korean students whereas aesthetics/trend factor affected satisfaction of American students. Regarding performance, body shape factor, distorted, trend/symbolic affected satisfaction of Korean students whereas trend/image affected satisfaction of American students. Third, satisfaction of Korean and American students influenced re-purchase intention and positive word-of-mouth, so proved to be the result variable of satisfaction. By understanding the differences between consumers in Korea and U.S., apparel importers and exporters may develop effective business strategies to better fulfill their customers' needs and desires, and therefore, increase their profit.

• Steel and Composite Structures
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• 제23권2호
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• pp.143-152
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• 2017

This paper focuses on the seismic performance of pallet-type steel storage rack structures in their down aisle direction. As evidenced by experimental research, the seismic response of storage racks in the down-aisle direction is strongly affected by the nonlinear moment-rotation response of the beam-to-column connections. In their down-aisle direction, rack structures are designed to resist lateral seismic loads with typical moment frames utilizing proprietary beam-to-column moment-resisting connections. These connections are mostly boltless hooked type connections and they exhibit significantly large rotations resulting in large lateral frame displacements when subjected to strong ground motions. In this paper, typical hooked boltless beam-to-column connections are studied experimentally to obtain their non-linear reversed cyclic moment-rotation response. Additionally, a compound type connection involving the standard hooks and additional bolts were also tested under similar conditions. The simple introduction of the additional bolts within the hooked connection is considered to be a practical way of structural upgrade in the connection. The experimentally evaluated characteristics of the connections are compared in terms of some important performance indicators such as maximum moment and rotation capacity, change in stiffness and accumulated energy levels within the cyclic loading protocol. Finally, the obtained characteristics were used to carry out seismic performance assessment of rack frames incorporating the tested beam-to-column connections. The assessment involves a displacement based approach that utilizes a simple analytical model that captures the seismic behavior of racks in their down-aisle direction. The results of the study indicate that the proposed method of upgrading appears to be a very practical and effective way of increasing the seismic performance of hooked connections and hence the rack frames in their down-aisle direction.

• 산업경영시스템학회지
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• 제40권2호
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• pp.121-128
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• 2017

This paper was to evaluate social enterprises' management efficiency with Data Envelope Analysis (DEA). The data was based on the 168 social enterprises' of annual performance reports published in 2015. The research focused on to measure both financial efficiency and social impact of the companies simultaneously. To apply DEA, the paper classified the enterprises into seven types based on types of socal impacts which each company provides before the estimation of the efficiency. The research results showed that group D, which employes disadvantaged people, provides social services and shares resources was the most efficient group and had higest net worths in Pure Technical Efficiency. In contrast, Group B, which only employs social advantage people and provides social service, was the least efficient one. The research suggests a practical and efficient framework in measuring social enterprises' management efficiency, including both the financial performance and social impacts simultaneously with their self-publishing reports. Because the Korea Social Enterprise Promotion Agency does not open business reports which social enterprises submit each year, there are basic limitations on researchers attempting to analyse with data from all social enterprises in Korea. Thus, this study dealt with only 10% of the social enterprises which self-published their performance report on the Korea Social Enterprise Promotion Agency's web site. Regardless of these limitations, this study suggested substantial methods to estimate management efficiency with the self-published reports. Because self-publishing is increasing each year, it will be the main source of information for researchers in examining and evaluating social enterprises' financial performance or social contribution. The research suggests a practical and efficient framework in measuring social enterprises' management efficiency, including both the financial performance and social impacts simultaneously with their self-publishing reports. The research results suggest not only list of efficient enterprises but also methods of improvement for less efficient enterprises.

• 융합정보논문지
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• 제9권11호
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• pp.47-54
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• 2019

본 연구는 핵심기본간호술 실습교육이 간호학생의 임상수행능력에 영향을 미치는 요인을 알아보기 위한 서술적 조사연구이다. 자료수집은 G도에 소재한 전문대학 간호학과 3, 4학년 학생 169명을 대상으로 수집하였으며, 수집된 자료는 SPSS 25.0 프로그램을 활용하여 t-test, ANOVA, Pearson's correlation coefficient, multiple regression으로 분석하였다. 핵심기본간호술 경험은 수행자신감(r=.446, p<.001)과 정적상관관계를 임상수행능력(r=-.206, p=.001)과 부적상관관계를 수행자신감은 임상수행능력(r=-.346, p<.001)과 부적상관관계를 갖는 것으로 나타났다. 본 연구에서 임상수행능력에 미치는 영향 요인은 수행자신감(${\beta}=-.317$, p<.001)으로 나타났으며, 임상수행능력 설명력은 11.3%인 것으로 나타났다. 따라서 간호대학생의 원활한 실습교육을 위해 임상수행능력 향상을 위한 효과적인 실습교육 프로그램이 필요할 것이다.

• 한국윤활학회:학술대회논문집
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• 한국윤활학회 2002년도 proceedings of the second asia international conference on tribology
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• pp.341-342
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• 2002

Although vegetable oils provide good lubricity, they still need optimization by certain additive technology for practical applications. ZDTP improve antiwear properties of vegetable oils. However the additive performance depends on quality of the base Oil. Antioxidants were applied to prevent the auto-oxidation of vegetable oils. Good synergistic effect of anti-wear and antioxidant additives was confirmed.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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• pp.1240-1243
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• 2004

Multi-Valued Image Entropy Coding (MVIEC) is a new class of joint source channel coding, which reduces both input-width (1/4) and average current (0.36-1.3) for LCD source drivers. This paper describes the detail results on MVIEC for several image sets in order to verify the practical performance.

• Journal of electromagnetic engineering and science
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• 제5권1호
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• pp.1-7
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• 2005

The implementation of a simple analog in-phase combiner is presented for a high capacity radio relay system with space diversity. It provides good performance in terms of simple hardware and easy control, and measured results are in good agreement with simulated ones. To suggest practical applications, signatures with/without diversity are measured for STM-1 signal of 64-QAM radio relay system combined with a 13-tap equalizer, and they provided more than 25 dB fade depth at 10$^{-3}$ BER under the frequency selective fading condition.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2004년도 추계학술대회
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• pp.1721-1726
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• 2004

Heat rate is a representative index to estimate the performance of turbine cycle in nuclear power plant. Accuracy of heat rate calculation is dependent on the accuracy of measurement for plant status variables. Uncertainty of heat rate can be modeled using uncertainty propagation model. We developed practical estimation model of heat rate uncertainty using the propagation and regression model. The uncertainty model is used in the performance analysis system developed for the operating nuclear power plant.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2004년도 전력전자학술대회 논문집(1)
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• pp.350-354
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• 2004

This paper presents theoretical and practical details about the design, implementation, and performance of a series resonant do-to-dc converter using planar magnetics. Result of sinusoidal analysis are used to predict the voltage gain and conversion efficiency. The performance of a prototype converter is presented including the efficiency measurement and theoretical loss breakdown.

• ETRI Journal
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• 제29권6호
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• pp.707-715
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• 2007

In-phase/quadrature (I/Q) imbalances, which are generated by non-ideal transceiver components, are inevitable physical phenomena that cause the performance of practical communication systems to be degraded. In this paper, we provide a new closed-form expression for the bit error rate of hierarchical M-ary phase shift keying with I/Q phase and amplitude imbalances and analyze the effect of I/Q imbalances on BER performance over an additive white Gaussian noise channel.