• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.245-246
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• 2011

본 연구의 목적은 스크린골프장 이용고객의 라이프스타일이 선택속성과 고객만족 및 재구매행동과의 인과관계를 규명하고자 하는 것이다. 본 연구의 연구대상은 2010년 3월 1일부터 2010년4월 30일까지 약 2개월간 부산 경남지역에 소재하고 있는 스크린골프장 10곳의 이용고객을 모집단으로 선정하였으며, 한 곳당 40부씩 총 400부를 직접 업체를 방문하여 배포하고 최종 332명을 표집하였으며, 표본 추출방법은 편의표본추출법을 사용하였고 설문에 대한 응답은 자기평가기입법을 채택하였다. 이들 설문지 중 신뢰성이 떨어진다고 판단되는 42명의 설문지를 제외하고 총 290명을 유효 표본으로 선정하여 본 연구의 자료로 이용하였다. 본 연구에서는 SPSS Window 12.0 통계 패키지를 이용하여 요인분석과 신뢰도분석, 빈도 분석, 회귀분석을 실시하였다. 연구결과를 보면 다음과 같다. 첫째, 스크린골프장 이용고객의 라이프스타일이 선택속성에 유의한 영향을 미치는 것으로 나타났다. 둘째, 스크린골프장 이용고객의 선택속성은 고객만족에 유의한 영향을 미치는 것으로 나타났다. 셋째, 스크린골프장 이용고객의 선택속성은 재구매행동에 유의한 영향을 미치는 것으로 나타났다.

• Structural Engineering and Mechanics
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• v.28 no.5
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• pp.525-548
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• 2008

This article deals the theory for solving an inverse problem of plate structures using the frequency-domain information instead of classical time-domain delays or free vibration eigenmodes or eigenvalues. A reduced set of output parameters characterizing the defect is used as a regularization technique to drastically overcome noise problems that appear in imaging techniques. A deconvolution scheme from an undamaged specimen overrides uncertainties about the input signal and other coherent noises. This approach provides the advantage that it is not necessary to visually identify the portion of the signal that contains the information about the defect. The theoretical model for Quantitative nondestructive evaluation, the relationship between the real and ideal models, the finite element method (FEM) for the forward problem, and inverse procedure for detecting the defects are developed. The theoretical formulation is experimentally verified using dynamic responses of a steel plate under impact loading at several points. The signal synthesized by FEM, the residual, and its components are analyzed for different choices of time window. The noise effects are taken into account in the inversion strategy by designing a filter for the cost functional to be minimized. The technique is focused toward a exible and rapid inspection of large areas, by recovering the position of the defect by means of a single accelerometer, overriding experimental calibration, and using a reduced number of impact events.

• 한국태양에너지학회:학술대회논문집
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• 2008.11a
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• pp.238-244
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• 2008

A numerical and experimental studies are carried out to investigate the heat transfer characteristics of 5kWth dish-type solar air receiver. Measured solar radiation and temperatures at several different locations are used as boundary conditions for numerical simulation. Many parameters' effects (reflectivity of the reflector, the thermal conductivity of the receiver body, transmissivity of the quartz window, etc.) on the thermal performance are investigated. Discrete Transfer Method is used to calculate the radiation heat exchange in the receiver. A heat transfer model is developed and the rate of radiation, convection and conduction heat transfer are calculated. Using the numerical model, the heat transfer characteristics of volumetric air receiver for dish-type solar thermal systems are known and the thermal performance of the receiver can be estimated.

• Journal of the Korean housing association
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• v.26 no.6
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• pp.147-155
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• 2015

The purpose of this study is to understand the characteristic elements of interior space which effects the basic floor plan of traditional houses, in Huizhou, CHINA. The field study for the content analysis of a interior space of traditional houses were conducted from August 16 to 21, 2015, in Xidicun & Hongcun village. The major characteristics of 'tang' interior were as follows; Firstly, all of traditional houses in a skylight that front of 'tang'. Several types of floor plan were fixed by a combination of the space layout and numbers between 'tang' and skylights. Secondly, 'Tang' is from 3,250 to 6,000 mm in width, from 3,800 to 7,800 mm in depth. All skylights are more length than 'tang' in width. So all of spacious 'tang' were very bright without any lighting fixtutes. Thirdly, the patterns of woodcuts were the major settings of interior decorations. All of a window and door, capital has a detail woodcuts that are flowers, animals, plants, peoples, vases, and geometric patterns. In the last analysis, the traditional housing designs in Huizhoui old villages were planned for family that everlasting life, made a functional and rational decision.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2008.11a
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• pp.153-153
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• 2008

최근 투명전극물질이 LCD, 박막태양전지, smart window, 유기발광소자 등에 폭넓게 이용됨에 따라 그 수요가 급격이 늘어나고 있다. 이러한 투명전극 물질로는 Al : ZnO, Ga : ZnO, $MgIn_2O_4$, $AgSbO_3$, $InGaZnO_4$, ITO, Zn:ITO 등이 있으며 이중 ITO 계 산화물은 우수한 전기적 특성을 바탕으로 이미 상용화 되어있는 상태이다. 그러나 ITO 계 산화물은 indium 의 희소성과 높은 가격 때문에 폭 넓은 분야의 상용화가 어려운 실정이며, 수소 플라즈마 분위기에 화학적으로 불안정한 특성은 Si 박막태양전지 응용에 큰 문제가 되고 있다. 이에 본 연구는 박막태양전지용 ITO 계 투명전극의 indium양을 줄이면서 화학적으로 안정하고, 전기적 특성이 향상된 박막을 제조하기 위해 combinatorial sputter를 이용하여 Zn의 도핑량을 연속적으로 변화시킨 ITO 박막을 제조하였다. 또한 광학적 전기적 특성의 향상을 위해 vacuum, $H_2$, $O_2$ 분위기에서 열처리 후 각 박막의 특성 변화를 관찰하였다.

• Journal of Korea Foundry Society
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• v.34 no.3
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• pp.107-111
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• 2014

Permeability is the ability of a material to transmit fluid/gases. It is an important material property and it depends on mould parameters such as grain fineness number, clay, moisture, mulling time, and hardness. Modeling the relationships among these variable and interactions by mathematical models is complex. Hence a biologically inspired artificial neural-network technique with a back-propagation-learning algorithm was developed to estimate the permeability of green sand. The developed model was used to perform a sensitivity analysis to estimate permeability. The individual as well as the combined influence of mould parameters on permeability were simulated. The model was able to describe the complex relationships in the system. The optimum process window for maximum permeability was obtained as 8.75-10.5% clay and 3.9-9.5% moisture. The developed model is very useful in understanding various interactions between inputs and their effects on permeability.

• New & Renewable Energy
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• v.4 no.4
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• pp.72-79
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• 2008

A numerical and experimental studies are carried out to investigate the transient heat transfer characteristics of 5kWth dish type solar air receiver. Measured solar radiation and temperatures at several different locations are used as boundary conditions for numerical a. Many parameters' effects (reflectivity of the reflector, the thermal conductivity of the receiver body, transmissivity of the quartz window, etc.) on the thermal performance are investigated. Discrete Transfer Method is used to calculate the radiation heat exchange in the receiver. A transient heat transfer model is developed and the rate of radiation, convection and conduction heat transfer are calculated. Comparing of the experimental and the numerical results, results of both are in good agreement. Using the numerical model, the transient heat transfer characteristics of volumetric air receiver for dish type solar thermal systems are known and the transient thermal performance of the receiver can be estimated.

• Women's Health Nursing
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• v.22 no.1
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• pp.30-38
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• 2016

Purpose: This study was conducted to examine effects of a sexual function improvement program on sexual distress, sexual satisfaction and marital intimacy among breast cancer survivors. Methods: With quasi-experimental design, a total of 54 women after breast surgery were assigned into experimental group (n=28) and control group (n=26) after recruited via convenience sampling. They were endocrine surgery outpatients in university hospital at Chonnam province. Experimental group received a sexual function improvement program 5 sessions over 5 weeks. Sexual distress, sexual satisfaction, and marital intimacy were examined with self-report structured questionaries. Data were analyzed using $x^2$ test, Fisher's exact, independent t-test, and analysis of covariance with SPSS 17.0/window program. Results: Women who participated in the sexual function improvement program had lower sexual distress (F=27.29, p<.001), higher sexual satisfaction (t=3.09, p=.003) higher marital intimacy (F=17.51, p<.001) than the women who did not participate. Conclusion: Results suggest that a sexual function improvement program can be effective strategy to improve sexual distress, sexual satisfaction and marital intimacy. Therefore, this program can be regarded as useful nursing intervention program for breast cancer survivors.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.26 no.1
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• pp.26-31
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• 2014

This study looks into changing building energy use by application of phase change material (PCM). PCM does not need extra energy for operation and is used for reducing building energy use and, CO2 output by displaying semi-permanent effects after installation. It also is able to avoid the maximum electric power time-zone by inducing a time lag phenomenon of cooling and heating loads with high thermal capacity using latent heat. To verify the efficiency of blinds and PCM, tests about the PCM operation mechanism using air conditioning machinery and nocturnal panel cooling were done. In the test results of the case using PCM installation, a $45^{\circ}$ blind angle with machinery air conditioning and nocturnal panel cooling at the same time shows a 22 percent energy saving effect against general space. The test results of each case were compared and analyzed based on the blind and window opening settings. Finally, the energy reduction of existing buildings using PCM application was reviewed based on the final measurement results.

• Journal of Welding and Joining
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• v.20 no.4
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• pp.510-516
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• 2002

Recently the laser welding technology has been applied increasingly for the automotive bodies. But the lap joint laser welding for 3 dimensional automotive body is new while the butt joint laser welding is well known as the tailored blank technology. In this study, the process window was found for the full penetration welding of the lap joint of the 1mm-thick high strength steel sheets. The limit curves and characteristic curves were suggested to define the boundaries and the contour lines in a space of the welding speed and the gap size. The characteristics of the weld sectional geometry were used to determine the limit curves. They are bead width, penetration depth and sectional area. After the observed data was analysed carefully, it was noticed that there was a transition point at which the sectional shape was changed and the bead area jumped as the welding speed was increased. Also a new concept of 'input energy Per volume' was suggested to distinguish the difference at the transition Point. The difference of sectional areas at the transition point can be related to the dynamic keyhole phenomena.