• Transactions on Electrical and Electronic Materials
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• v.11 no.4
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• pp.194-196
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• 2010

A study is presented of improved road light design for drivers and pedestrians with the use of a ray- or reverse ray-tracing method. Many existing road lights are unsuitable for drivers and pedestrians because of serious problems such as glare effect or randomicity of illuminated areas. This situation has arisen because in customary design methods the emphasis has been on simple factors such as luminance or electrical power. However a high luminance or electrical power consumption, alone, do not guarantee bright and good road lighting. So we have applied a ray-tracing method to the design of a road light reflector with the goals of ensuring that illuminated objects on the road can be seen more clearly and that the illuminating light is more comfortable for the eyes of drivers and pedestrians. We have set design targets for factors such as the uniformity of lighting on the road area per road light, the shading angles and the continuous luminance uniformity on long lengths of road. For set heights of the eyes of drivers and pedestrians eyes we have calculated a design guideline for the achievement of the above design targets. Then we designed a road light reflector using the reverse ray-tracing approach. Also we have achieved the same luminance on the road with almost half the power consumption, through the reduction of lighty loss. In an ideal design optimum parameters are suggested to be a shading angle of 75 degrees and a luminance uniformity of 0.5 on the road area. This reflector performance is achievable with a 250 watt power consumption ceramic discharge metal light source.

• The Journal of the Acoustical Society of Korea
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• v.21 no.5
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• pp.478-484
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• 2002

Linear towed arrays (LTA) have a nonlinear shape due to tow vessel motion, ocean swells and currents. By reasons of nominally linear shape, various towed array shape estimation techniques have been developed since the perturbed shape cause the error in target detection. In this paper,, we propose the beamforming method for the perturbed LTA with simple structure. The proposed method linearizes a nonlinear phase of steering vector with position information measured by two reference sensors. It can be proved using some properties of Markov transition matrix, and iteration number of linearization process is decided by variance of cross phase difference. As a result of computer simulation in the ocean environment, beampattern of the proposed method is almost same with the ideal case in my type of array shape. In the signal-to-noise ratio (SNR) performance simlation, the DOA estimation performance of the proposed beamforming method is evaluated, and the comparison with Bartlett beamformer of the LTA shows that the proposed method can estimate. the spatial characteristic of sources more accuracy.

• Journal of Korean Physical Therapy Science
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• v.6 no.2
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• pp.1041-1062
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• 1999

This study is to stimulate the model of which top notch muscle stimuli physical therapy has been made on the basis of GCM. GCM has been studied on the hypermobility & hypomobility pattern on the part of spine & extremity, and the body characteristics of four body types, which is the tilting of seal scapular & ilium. The purpose of this study is to analysize the type of GCM which has been focused on the spine & extremity for the patients having dysfunctions of neuromuscular system, being analysized the movement. The result of this study is as following; 1) The First hypothesis: The hypermobility & hypomobility pattern assorted by the tilting of scapular & ilium, as does the former study analysize was claimed that it would be in line with the pattern for hypermobility hypomobility and physical characteristics according to each body type at the percentage of at least 60(p<.001). 2) The 2nd hypothesis : Stimuli therapy of muscle dealing with physical characteristics and joint hypermobility hypomobility has the important role in restoring the deformity and keeping anatomical postural plumb alignment also it would a highly effects on correcting the body even though the stimuli area was limited to four areas and it was lack of time compared with those applied by general physical therapy(p<.001). As above the result, the top-notch type for physical therapy based on hypermobility hypomobility pattern by 4 body types which has been studied on tilting of scapular & ilium is more specificed and specialized than those of general physical therapy technologies. So this study will be believed to dedicate to restoration ideal anatomical postural plumb alignment based on spinal Manipulation and the concept of whole person as well as to being simple and effective to apply.

• The Research Journal of the Costume Culture
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• v.21 no.5
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• pp.613-628
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• 2013

This study aims to identify characteristics of neo-naturalism coming from periodical changes in the 21th society, culture based on naturalism and analyze the expressional and design characteristics of neo-naturalism on 2000s. For a research method, this study researched development of naturalism in fashion, and searched digital naturalism and ecology which are design paradigm effecting on neo-naturalism through literature research and preliminary study. Analyzing preliminary study on architecture, interior, fashion about digital naturalism and ecology design, concept of neo-naturalism identified and four expressional characteristics of neo-naturalism was classified, actual examples of neo-naturalism in 21th fashion were extracted and drew design characteristics. The results are as followings. Firstly, naturalism described nature as it is and developed according to the values and needs of the times. Naturalism in fashion showed natrual human body's curve, nature pattern and used natural materical focused on ideal beauty of nature. Secondly, neo-naturalism renews with the foundation of digital culture and ecology design paradigm, and focuses on the flexible possibility to express nature with digital, new media and formative art, and made the artificial nature uniting human-nature-environment as organic whole by ecology design paradigm. Thirdly, design of neo-naturalism divided four characteristics, nature's organic form, combination with the technology, ethical harmony with nature, global local design. The first characteristics of the nature's organic form are expressing silhouette of the nature's organic volume abstractly, the second ones of the combination with the technology are reinterpreting primitive nature contemporary with artificial sensibility of high technology, the third ones of the ethical harmony with nature are showing simple design and high-touch, and the forth ones of global local design are expressing cultural hybrid preserving vernacular design.

• Korean Journal of Social Welfare
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• v.38
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• pp.206-233
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• 1999

The purpose of this paper is to suggest a scientific evaluation criteria for integration of person with disabilities by developing and measuring the index and indicator of disability integration. Disability integration index will be expressed in a simple number to represent the current situation which will summarize the level of integration of persons with disabilities from the perspective of outcome. Disability integration index is composed of four indicators-social attitude toward person disability, physical environment, participation in society expressed by employment and education, and social institution. Observation research was conducted to measure first two indicators of social attitude and physical environment while existing statistics and data were analyzed for other two of participation in society and social institution. The result of this study showed that disability integration index of Korea was 0.4832. Therefore this paper comes to conclude that the level of integration in Korea approaches to 48 percent which is half of ideal integration. However, this study has its limitations in selection of indicators and index formula which in turn must be followed by next studies.

• Geophysics and Geophysical Exploration
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• v.13 no.4
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• pp.370-377
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• 2010

In this study, we investigated the current saturation which forces the apparent resistivity to converge when the conductivity contrast between the anomalous body and background medium is greater than a specific value. Analizing theoretical and numerical solutions for some simple models, we studied the behavior of the surface charge, and how the surface charge cause the current saturation and finally lead to the convergence of the apparent resistivity in the resistivity method. As a consequence of above analysis, we verified that the current saturation makes the apparent resistivity converge to a specific value and the magnitude of the apparent resistivity anomaly be less than that of the ideal conductor or insulator in the resistivity method. In general, current saturation is considered to occur when the conductivity contrast becomes larger than 100.

• Journal of The Korean Association For Science Education
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• v.32 no.7
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• pp.1157-1168
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• 2012

This study examined the effect of simulated instruction activities based on a constructivist teaching approach on epistemological belief, science teaching efficacy belief, and teaching motivation. The RTOP (Reformed Teaching Observation Protocol) played a role to guide preservice biology teachers to obtain insights on current reformed teaching and to further practice teaching based on constructivism. The results indicated that preservice teachers changed their epistemological beliefs toward more sophisticated views, especially for 'simple knowledge'. They also improved their science teaching efficacy beliefs, both personal science teaching efficacy belief (PSTEB) and science teaching outcome expectancy (STOE). In addition, these perservice teachers decreased their scores of extrinsic teaching motivation. The Pearson correlation represented the negative relationship between personal science teaching efficacy belief (PSTEB) and extrinsic teaching motivation. After intervention, the preservice teachers mentioned inquiry, active participation and discussion as ideal science teaching methods and qualifications for science teachers.

• The Research Journal of the Costume Culture
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• v.10 no.6
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• pp.763-780
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• 2002

The aim of this research is to analyze Vionnet´s geometric features, which can be regarded as the key formative beauty among the external characteristics of her works. and to thereby establish the theory that her works emitted a time-transcending life force because they were patterns designed based on a geometrical frame of mind. To prove such argument, studies to understand the basic geometrical aspects appearing in her works will be made by taking a look at the general features of geometry, viewing Vionnet´s philosophy for designing, and examining the geometric cutting methods. The period covered in this paper will center mainly on dresses Vionnet made from her very active days in the fashion sector, 1919. till when she retired from the fashion industry, around 1939. What's outstanding about Vionnet´s geometric principle expressed in her works is the unique cutting method that acknowledges the silhouette of the human body as a cubic or three-dimensions concept, through insight of the human body, the mechanics of the materials, and geometry. Vionnet introduced a simple and elegant design by combining geometric figure cuts, such as rectan히es. quadrants, and triangles. Moreover, she created a new sewing structure that plans everything about the materials to the tiniest detail, resulting in producing a softer style With this, Vionnet showed the geometrical correlation can bring about harmony and the beauty of ideal proportion, forming the source of eternal beauty. As discussed so fu, the geometrical characteristics appearing in Vionnet´s works are marked such as spirals, zig-zag lines, asymmetries. panels, gradation, golden proportion, and the mobius-band.

• Journal of Korea Society of Industrial Information Systems
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• v.20 no.4
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• pp.1-9
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• 2015

This paper proposes CAC method that is more efficient for RRM using game theory combined with Multiple Attribute Decision Making(MADM). Because users request services with different Quality of Service(QoS), the network preference values to alternative networks for each service are calculated by MADM methods such as Grey Relational Analysis(GRA), Simple Additive Weighting(SAW) and Technique for Order Preference by Similarity to Ideal Solution(TOPSIS). According to a utility function representing preference value, non-cooperative game is played, and then network provider select the requested service that provide maximum payoff. The appropriate service is selected through Nash Equilibrium that is the solution of game and the game is played repeated. We analyze two overlaid networks among four Wireless LAN(WLAN) systems with different properties. Simulation results show that proposed MADM techniques have same outcomes for every game round.

• Preventive Nutrition and Food Science
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• v.10 no.2
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• pp.198-205
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• 2005

Korean medicated diet (KMD) is not a simple combination of food and Chinese drugs, but a special carefully constructed diet made from Sasang constitutional medicines, food and condiments under the theoretical guidance of diet preparation based on differentiation of symptoms and signs of traditional Sasang medicine (TSM). It combines the functional efficacy of medicine with the delicacy of food, and can be used to prevent and cure diseases, build up one's health and prolong one's life. Korean traditional medicated diet has a long history of development. Although influenced by Chinese medicine, Korean traditional medicine has been developed into a unique system of traditional medicine that has surpassed the continental medical practice, sublimating itself into a native medical practice suitable to Korean lifestyles and physical constitutions. In the 19th century, Lee Jema's Sasang medicine (medicine of four types of energy determining the physical constitution) was introduced. It is an integration of mind and body according to the individual's physical constitution that is categorized allowing a customized method of treatment ideal for each category-making the content of Korean traditional medicated diet even richer. The characteristics of Korean medicated diet are as follows: (1) Laying stress on the wole, selecting medicated diet on the basis of differential diagnosis. (2) Suitable for prevention and treatment, outstanding in effect. (3) Good in taste, convenient for taking. KMD refers to drink and food according to certain prescriptions, by processing and cooking that can be used either for prevention and cure of diseases, or for health care and recovery. The purpose of this review is to introduce TSM and KMD based on Sasang constitutional medicines.