• Archives of design research
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• v.14 no.1
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• pp.71-81
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• 2001

Modem metal furniture design can be defined as the spirit of the times. It reflects the society we are living in; political and social issues, new technology and materials developed, structural solution and changes on the sense of value of a period. Therefore, the metal furniture design professionals must understand the flow of the society before designing or producing. Understanding the trends of a period is crucial for the metal furniture designers to develop the speciality. This study aims to offer the chance to understand and analyse the characteristics of contemporary metal furniture design and the cultural development. It gives the theories on the relationship between the environmental background and social factors that have influenced on the development of metal furniture design.

• Structural Engineering and Mechanics
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• v.54 no.5
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• pp.891-908
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• 2015

For a systematic study on wind-induced vibration characteristics of large hyperbolic cooling towers with different feature sizes, the pressure measurement tests are finished on the rigid body models of three representative cooling towers with the height of 155 m, 177 m and 215 m respectively. Combining the refined frequency-domain algorithm of wind-induced responses, the wind-induced average response, resonant response, background response, coupling response and wind vibration coefficients of large cooling towers with different feature sizes are obtained. Based on the calculating results, the parametric analysis on wind-induced vibration of cooling towers is carried out, e.g. the feature sizes, damping ratio and the interference effect of surrounding buildings. The discussion shows that the increase of feature sizes makes wind-induced average response and fluctuating response larger correspondingly, and the proportion of resonant response also gradually increased, but it has little effect on the wind vibration coefficient. The increase of damping ratio makes resonant response and the wind vibration coefficient decreases obviously, which brings about no effect on average response and background response. The interference effect of surrounding buildings makes the fluctuating response and wind vibration coefficient increased significantly, furthermore, the increase ranges of resonant response is greater than background response.

• Journal of IKEEE
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• v.20 no.1
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• pp.31-44
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• 2016

This paper presents a hole-filling algorithm based on extrapolating spatial-temporal background information used in view synthesis for free-viewpoint television. A new background codebook is constructed and updated in order to extract reliable temporal background information. In addition, an estimation of spatial local background values is conducted to discriminate an adaptive boundary between the background region and the foreground region as well as to update the information about the hole region. The holes then are filled by combining the spatial background information and the temporal background information. In addition, an exemplar-based inpainting technique is used to fill the rest of holes, in which a priority function using background-depth information is defined to determine the order in which the holes are filled. The experimental results demonstrated that the proposed algorithm outperformed the other comparative methods about average 0.3-0.6 dB, and that it synthesized satisfactory views regardless of video characteristics and type of hole region.

• The Korean Fashion and Textile Research Journal
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• v.19 no.5
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• pp.653-660
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• 2017

Recently, consumers' evaluation and purchase of online design has been increasing due to the popularization of designing through personal computers, but there has not been enough studies on consumers' brain wave responses depending on the change of PC monitor's color. Therefore, this study investigated how brain waves changed when different background colors with gray patterns were presented through PC monitors. Six background colors with same tone of slightly low saturation were selected, including ivory, yellow, pink, green, blue and pure white as a base color. The brightness and characteristics of color used were analyzed using the luminance meter and color scales. Brain wave was measured by EEG measurement equipment. Brain wave measurement was carried out with 9 subjects at 6 points: F3, F4, T3, T4, O1, and O2. Stimuli were shown for 15 seconds each and black screens were displayed for 15 seconds between each stimulus. As results, the brain waves at O1 responded sensitively by different background colors, followed by F4 and T4. Brain index such as 'RT', 'RA', 'RG', 'RSA', and 'RAHB' showed significant differences depending on the background color at O1, whereas 'RST' differed at F4. Yellow and blue backgrounds pair was the only stimuli that showed significant differences in six brain indices mentioned. Yellow background had higher value of 'RG' at O1 and higher 'RST' at F4, indicating yellow background enhanced concentration. Blue background activated 'RT', 'RA', 'RSA', 'RAHB' at O1, meaning blue background induced calm and stable state.

• Journal of ILASS-Korea
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• v.25 no.3
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• pp.111-118
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• 2020

This paper describes the effect of DME, biodiesel blended fuels on the macroscopic spray characteristics in a high pressure diesel injection system using Background Oriented Schlieren (BOS) method. The BOS method for visualization of impingement evaporation sprays to analyze macroscopic spray properties and evolutionary processes. In this work, the blending ratio of DME in the blended fuel are 0, 50, 100% by weight ratio. In order to investigate the macroscopic impinged spray characteristics under the various injection parameters and blending ratio. In this work, a mini-sac type single-hole nozzle injector with nozzle hole was length 0.7 mm and diameter of 0.3 mm was used. According to the result, the spray area of the collision wall increased as the DME mixing ratio increased, and the evolutionary pattern showed a stepwise increase due to the collision effect of the wall. Also, results of impinged spray area were increased according to increasing injection pressure.

• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.2
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• pp.149-154
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• 2014

Detection performance of fire detection in the outdoor depends on weather conditions, the shadow by the movement of the sun, or illumination changes. In this paper, a smoke detection in conjunction with a robust background estimate algorithm to environment change in the outdoor in daytime is proposed. Gaussian Mixture Model (GMM) is applied as background estimation, and also, statistical characteristics of smoke is applied to detect the smoke for separated candidate region. Through the experiments with input videos obtained from a various weather conditions, the proposed algorithms were useful to detect smoke in the outdoor.

• Korean Journal of Organic Agriculture
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• v.14 no.2
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• pp.117-137
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• 2006

Environment-friendly(EF) agricultural policy developed to support high-quality farm products, such as organic farm products, doing so for the sake of strengthening the competitive power of Korean agriculture after the agreement of UR. The details of the policy are as follows : enforcing certification of organic farm products, establishing of the Law of Fostering the EF agriculture, carrying out the order of direct-payment, setting up the Five Year Plan for EF agriculture, etc. This study focuses on the background of social economy, the standpoint of EF farming in agricultural policy, and the analysis of the characteristics in EF agriculture. Three aspects in the background of the policy are as follows : the social movement, the social economy, and the social system. The standpoint and characteristics of the policy are studied by the analysis of the target and means of the policy which is based on the policy documents.

• Journal of Information Display
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• v.13 no.3
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• pp.101-106
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• 2012

This study was conducted to enhance the cubic effect by representing an image with a sense of three-dimensional (3D) depth, using chromostereopsis, among the characteristics of human visual perception. An algorithm that enhances the cubic effect, based on the theory that the cubic effect of the chromostereoptic effect and the chromostereoptic reversal effect depends on the lightness of the background, classifies the layers of the 3D image input into the foreground, middle, and background layers according to the depth of the image input. It suits the characteristics of human visual perception because it controls the color factor that was adaptively detected through experiments on each layer; and it can achieve an enhanced cubic effect that is suitable for the characteristics of the image input.

• Korean Institute of Interior Design Journal
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• v.22 no.1
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• pp.97-104
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• 2013

This study aims at finding out the characteristics and influences of Libeskind's early drawing works through comparisons of each drawing. The importance of his experimental drawing works is not only their uniqueness but also relationship to creation and development of his architecture. Libeskind's musical and educational background had great impacts on forming his early drawings. A series of drawings including 'Micromegas', 'Chamberworks', and 'Theatrum Mundi' shows variety and experiments about reconstruction of three dimensional architectural fragments, abstractive line drawing and plane oriented painting. Libeskind himself cease to experiment drawing techniques but their characteristics still remain in his sketches, diagram and conceptual drawings. In spite of influences of undergraduate design studios, theoretical background of graduate studies, their experimental features are due to his continuous endeavor to make and develop his drawing skills and contents. As a result, his early drawings act as media and way to communicate and develop his concepts.

• Korean Journal of Adult Nursing
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• v.26 no.3
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• pp.320-329
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• 2014

Purpose: The purpose of this study was to analyze the effect of sexual attitude among the elderly to their sexual life while exploring the moderating effect of general characteristics in the relationship between sexual attitude and sexual life. Methods: A descriptive research design was used. The subjects were 322 married elderly from four silver centers in Seoul and Gangwon-do. Aging Sexuality Attitude Scale developed by White (1982) was used to examine sexual life status and general characteristics of the subjects (gender, age, academic background, religion, economic status, and residential type). For data analysis, ${\chi}^2$-test, t-test, and ANOVA were conducted. Since the dependent variable of sexual life is a binary variable, hierarchical logistic regression was implemented. Results: There were 180 people (55.9%) who had a sexual life. Depending on gender (${\chi}^2$=35.03, p<.001), academic background (${\chi}^2$=29.45, p<.001), and economic status (${\chi}^2$=7.36, p=.025), the subjects showed significant difference in terms of sexual life. Regarding sexual attitude, the subjects showed significant difference depending on gender (t=-5.47, p<.001), age (t=-2.31, p=.021), academic background (t=5.16, p<.001), economic status (F=3.17, p=.043), and sexual life status (t=4.99, p<.001). Conclusion: It is important to devise the sex education program in consideration of gender, age, and academic background that showed moderating effects.