• 가정과삶의질연구
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• 제20권4호
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• pp.189-196
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• 2002

The purpose of this study is to investigate the effects of factors of family leisures on family intra-system dynamics and quality of family life. A total 309 questionnaires was analyzed from married men and women of school-age families. Factors of family leisures were classified in 'education oriented', 'hobby oriented', social oriented'and 'family oriented'in the study ahead.(Refer to Journal of korean Home Management association Vol. 19(2).) The major results of this research were as follows. First, family intra-system dynamics was classified 'individual progress', 'sentimental stability','interaction'and 'management efficiency'. Second, the group that participated more in 'social oriented'and less in 'family oriented'activities had higher level of 'individual progress'. The group that participated less in 'social oriented'and more in 'education oriented'activities had higher level of 'sentimental stability'The group that participated more in 'education oriented'activities had higher level of 'interaction'and 'management efficiency '. Based on the results as above, we suggest people need to overcome 'a mental panic'through the family leisure. And we need to develop concern with family leisure as a practical loaming.

• 대한간호학회지
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• 제30권3호
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• pp.584-594
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• 2000

The purpose of this study was to identify emotional responses, of stroke patients using Q analysis. From the data analysis, five types of emotional responses in stroke patients were classified as follows. 1. Acceptance and Overcoming : They attached to life strongly and had self-confidence of recovery. They were striving against their situation through using anything else good for their recovery. 2. Anger Type : They recognized a labile feeling and were angered easily. They had a self-confident and self-esteemed personality before they had a stroke. 3. Conflict Type : They wanted interaction with others. This individual recognized that no one knows their agonies. They were thankful to god or their family, while they could not control their minds. Their family supports were low. 4. Deficiency of self-esteem Type : They had a self-confidence of recovery, but they were in fear of interaction with others. Especially, they were ashamed of themselves. They have a high sense of responsibility and nigh self-esteem for themselves before they had a stroke. 5. Despair Type. : They were sorry to trouble their family. They felt depression, anxiety, darkness, uselessness of themselves, and they wanted to die. They recognized financial burden. for their family. The characteristics of the five types of stroke patient identified in this study will be used to assess emotional nursing needs for stroke patients. The findings of this study will provide practical guidelines for developing nursing interventions for stroke patients based on the characteristics of subjectivity types.

• 대한간호학회지
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• 제15권2호
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• pp.16-24
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• 1985

This study considered the problem of whether the method of Lamaze education changes maternal attitudes toward childrearing, material-infant interaction and is feasible for Korean culture in nineteen mother. infant dyads. Among those mothers, nine were assigned experimental group who received Lamaze education at the period of 7th and 8th month of gestation, and ten were assigned control group who received obstetric routine care. Maternal attitudes were assessed with selected items from Cohler's Maternal Atttiude Scale. Maternal Play Interaction Scale was used during play session to evaluate maternal sensitivity, infant response and mother-infant dyadic synchrony. There were no significant differences not only between the two groups, but also between the period of pre-lamaze education and post-delivery on the Cohler's maternal attitude scale. Experimental mothers and babies scored significantly higher on maternal sensitivity and infant response. But no differences in mother-infant, dyadic synchrony were found. This findings mean that the effect of the lamaza education on the maternal attitudinal change related to be needed the change of cognitive structure is delayed while the effect of that on the maternal infant behavioral response showed immediatly. Modification of Lamaze method is necessary for practical use in our sociocultural system.

• Tribology and Lubricants
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• 제18권5호
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• pp.351-356
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• 2002

The surfaces of machine components in sliding contact such as bearing, gears and pistons etc. frequently operate under the condition of mixed lubrication due to high load, high speed and slip. These machine components often undergo the inception of scuffing in practical application. The scuffing failure is a critical problem in modern machine components, especially for the requirement of high efficiency and small size. However, it is difficult to find a universal mechanism to explain all scuffing phenomena because there are so many factors affecting the onset of scuffing. In this study, scuffing experiments are conducted using Acoustic Emission(AE) measurement by an indirect sensing approach to detect scuffing failure. Acoustic Emission(AE) signal has been widely utilized to monitor the interaction at the friction interface. Using AE signals we can get an indication about the state of the friction processes, about the quality of solid and liquid layers on the contacting surfaces in real time. The FFT(Fast Fourier Transform) analyses of the AE signal are sued to understand the interfacial interaction and the relationship between the AE signal and the state of contact is presented.

• 한국지진공학회논문집
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• 제24권4호
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• pp.179-187
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• 2020

Seismic qualification of equipment including piping is performed by using floor response spectra (FRS) or in-structure response spectra (ISRS) as the earthquake input at the base of the equipment. The amplitude of the FRS may be noticeably reduced when obtained from coupling analysis because of interaction between the primary structure and the equipment. This paper introduces a method using a modal synthesis approach to generate the FRS in a coupled primary-secondary system that can avoid numerical instabilities or inaccuracies. The FRS were generated by considering the dynamic interaction that can occur at the interface between the supporting structure and the equipment. This study performed a numerical example analysis using a typical nuclear structure to investigate the coupling effect when generating the FRS. The study results show that the coupling analysis dominantly reduces the FRS and yields rational results. The modal synthesis approach is very practical to implement because it requires information on only a small number of dynamic characteristics of the primary and the secondary systems such as frequencies, modal participation factors, and mode shape ordinates at the locations where the FRS needs to be generated.

• 한국게임학회 논문지
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• 제15권4호
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• pp.59-68
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• 2015

정보통신기술의 발달로 빅데이터 분석을 통해 사람들 일상의 기록과 잠재적 요구까지 통찰할 수 있게 되었으며, 우리의 일상 속에서 방대한 정보를 실시간으로 도출하고 있다. 여러 산업이나 기업에서 이미 빅데이터와 결합시켜 비즈니스 등 다양한 분야에 활용하고 있지만 게임 산업에서의 빅데이터 활용은 아직까지 미흡한 실정이다. 이에 본 연구에서는 데이터 마이닝을 기법을 적용하여 전략시뮬레이션 게임 데이터를 분석하였다. 전략시뮬레이션 게임 데이터를 Decision Tree, Random Forest, Multi-class SVM, Linear Regression 분석 기법을 적용하여 게임 유저의 게임수준에 영향을 미치는 요인을 분석하였다. 게임수준을 예측하는데 있어 가장 우수한 성능을 보인 기법과 변수들을 도출하여 게임 디자인과 사용성을 증대시키기 위한 제안을 하고자 한다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 세계 도시지반공학 심포지엄
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• pp.1441-1446
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• 2009

Numerical analysis is a powerful method in evaluating the soil-pile-structure interaction under the dynamic loading, and this approach has been applied to the practical area due to the development of computer technology. Finite Difference Method, one of the most popular numerical methods, is sensitive to the shape and the number of mesh. However, the trial and error approach is conducted to obtain the accurate results and the reasonable simulation time because of the lack of researches about mesh size and the number. In this study, FLAC 3D v3.1 program(FDM) is used to simulate the dynamic pile model tests, and the numerical results are compared with the 1G shaking table tests results. With the different size and shape of mesh, the responses of pile behavior and the simulation time are estimated, and the optimum mesh sizes in dynamic analysis of single pile is studied.

• ETRI Journal
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• 제37권4호
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• pp.766-771
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• 2015

Robust motion estimation for human-computer interactions played an important role in a novel method of interaction with electronic devices. Existing pose estimation using a monocular camera employs either ego-motion or exo-motion, both of which are not sufficiently accurate for estimating fine motion due to the motion ambiguity of rotation and translation. This paper presents a hybrid vision-based pose estimation method for fine-motion estimation that is specifically capable of extracting human body motion accurately. The method uses an ego-camera attached to a point of interest and exo-cameras located in the immediate surroundings of the point of interest. The exo-cameras can easily track the exact position of the point of interest by triangulation. Once the position is given, the ego-camera can accurately obtain the point of interest's orientation. In this way, any ambiguity between rotation and translation is eliminated and the exact motion of a target point (that is, ego-camera) can then be obtained. The proposed method is expected to provide a practical solution for robustly estimating fine motion in a non-contact manner, such as in interactive games that are designed for special purposes (for example, remote rehabilitation care systems).

• 디지털콘텐츠학회 논문지
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• 제19권2호
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• pp.277-284
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• 2018

본 연구는 후속 기업이 선도 기업을 극복하기 위한 성분 브랜드 제휴 전략을 제안하였다. 동시에 성분 브랜드의 브랜드 인지도(고/저)와 원산지(호의적/비호의적)의 조절효과에 대해서도 살펴보았다. 분석결과, 첫째, 소비자의 제휴된 제품에 대한 구매 의도는 모 기업의 시장진출순서와 성분 브랜드의 시장지위에 따라 유의한 상호작용 효과가 나타났다. 둘째, 소비자의 제휴된 제품에 대한 구매 의도는 모 기업의 시장진출순서와 원산지에 따라 유의한 상호작용 효과가 나타났다. 이상의 결과를 바탕으로 본 연구결과에 대한 이론적 및 실무적인 시사점과 본 연구에 대한 한계점, 향후 연구방향을 논의하였다.

• Steel and Composite Structures
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• 제2권1호
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• pp.1-20
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• 2002

Fiber-Reinforced Plastics (FRP) have received significant attention for use in civil infrastructure due to their unique properties, such as the high strength-to-weight ratio and stiffness-to-weight ratio, corrosion and fatigue resistance, and tailorability. It is well known that FRP wraps increase the load-carrying capacity and the ductility of reinforced concrete columns. A number of researchers have explored their use for seismic components. The application of concern in the present research is on the use of FRP for corrosion protection of reinforced concrete columns, which is very important in cold-weather and coastal regions. More specifically, this work is intended to give practicing engineers with a more practical procedure for estimating the strength of a deficient column rehabilitated using FRP wrapped columns than those currently available. To achieve this goal, a stress-strain model for FRP wrapped concrete is proposed, which is subsequently used in the development of the moment-curvature relations for FRP wrapped reinforced concrete column sections. A comparison of the proposed stress-strain model to the test results shows good agreement. It has also been found that based on the moment-curvature relations, the balanced moment is no longer a critical moment in the interaction diagram. Besides, the enhancement in the loading capacity in terms of the interaction diagram due to the confinement provided by FRP wraps is also confirmed in this work.