• Proceedings of the Korea Society of Design Studies Conference
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• 1998.04a
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• pp.66-67
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• 1998

• Journal of Environmental Science International
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• v.18 no.9
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• pp.993-1000
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• 2009

The development of a new type of soil-cement concrete pavement using volcaniclastic is the main purpose of this study. Various mixture ratios, specimens' penetration resistance, time of setting, slump flow of fleshly mixed concrete, compressive strength and color characteristics of hardened concrete were studied. It was concluded that the optimum weight ratio of cement:volcaniclastic to produce good properties of soil-cement concrete is 1:3 and the use of volcaniclastic as main aggregate can improve the concrete surface color that is warm earth-tone road color. Therefore, commercial development for soil-cement concrete pavement using volcaniclastic is highly promising.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.21 no.6
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• pp.341-350
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• 1988

The wind stress distribution over the East Sea of Korea was obtained from the shipboard observations of the Fisheries Research and Development Agency along the serial observation lines. These monthly and annual mean wind stress distributions were put into the simplified interface model which describes the latitudinal variations of the upper-layer thickness as function of the curl of the wind stress. The observed variations of the surface, zonally averaged winds indeed caused the upper-layer flow convergent and divergent at the latitudes that produced a tone of thick upper-layer or a deep permanent thermocline and the shallower depth with divergence. Thus, the wind field contributes positively to maintain the almost time-independent distribution of the interface of 'saddle like' feature in north-south direction over the study area.

• The Journal of Engineering Geology
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• v.16 no.4 s.50
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• pp.327-335
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• 2006

Three processing strategies of seismic refraction data are tested in terms of velocity and depth profiles or structures for mapping of geological discontinuities: GRM(generalized reciprocal method), GLI(generalized linear inversion), Tomography. The test data used in this study are the shot gathers reconstructed by numerical modeling for the structures of 3 planar layers(horizontal, inclined), the buried vertical fracture zones, and vertical fault zones. Tomography is shown to be very efficient for mapping of more complicated tone such as vertical fault and buried fracture zones, whereas GRM and GLI can be useful for horizontal and/or inclined layers, probably on their bases of analysis of first arrivals in travel time curves.

• The Journal of Korean Medical History
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• v.27 no.1
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• pp.135-156
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• 2014

Through a simple translation and analysis of the "Su$\acute{s}$uta-saṃhit$\bar{a}$(The fascinating tales) S$\bar{u}$trasth$\bar{a}$na(The Introduction)", I have summarized the results of the research into the $\bar{A}$yurveda Herbal theory. 1. The title of chapter 40 is "dravya-rasa-guṇa-vip$\bar{a}$ka-vij$\tilde{n}$anīya(Medcation Taste Nature Effects Digestion)", and it states theoretical knowledge on materia medica. It says that 'matter' is the most important thing, and that it decides the curing effect. Although it does acknowledge the reason behind the doctors that emphasized things like 'taste', it mainly has a critical tone. The difference in philosophies and medical theory can be seen when we compare this to the "Caraka-saṃhit$\bar{a}$", 'theory on taste'. 2. The title of chapter 41 is "dravya-vi$\acute{s}$eṣa-vij$\tilde{n}$anīya(A Discussion on the Characteristics of Materia Medica)", and the contents of the chapter have a similar tone to the thoughts of the S$\bar{a}$mkhya(數論派). All 'matter' was created by the combination of the five elements of earth, water, fire, wind, and ether, and the predominant element makes it have an earth, water, fire, wind, or ether nature. Earth has an unmoving and down going nature, and makes the body strong. Water has an irrigating nature, and moistens the tissue and induces secretion and excretion. Fire has an upward-going nature, and improves sight and complexion. Wind relaxes and dries the body, and makes the mind and body agile. Ether gives flexibility, porosity, and candidness. The title of chapter 42 is "rasa-vi$\acute{s}$eṣa-vij$\tilde{n}\bar{a}$nīya(A Discussion on the Types of Rasa(taste))". "Rasa" is an important concept in $\bar{A}$yurveda. Sometimes it is translated as 'one of the seven types of bodily tissue' and seen as chyle, and sometimes it is seen as the tastes that can be felt with the tongue such as spicy, sweet, sour, bitter, salty, and astringent(澁). Volume 1, chapter 42 of the "Caraka-saṃhit$\bar{a}$" is dedicated to the "types of taste", and in chapter 26, it theorizes the concept of 'taste'.

• Journal of Astronomy and Space Sciences
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• v.27 no.4
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• pp.337-343
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• 2010

Optical observation system provides angle-only measurement for orbit determination of space object. Range measurement can be directly acquired using laser ranging or tone ranging system. Initial orbit determination (IOD) by using angle- only data set shows discrepancy according to the measurement time interval. To solve this problem, range measurement data should be added for IOD. In this study, two-site optical observation was used to derive the range information. We have observed nine geostationary earth orbit satellites by using two-site optical observation system. The determination result of the range shows the accuracy over 99.5% compared to the results from the satellite tool kit simulation. And we confirmed that the orbit determination by the Herrick-Gibbs method with the range information obtained from the two-site observation is more accurate than the orbit determination by Gauss method with the one-site observation. For more accurate two-site optical observation, a baseline should satisfy an optimal condition of length and more precise observation system needed.

• The Journal of the Acoustical Society of Korea
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• v.22 no.2E
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• pp.78-86
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• 2003

We analyzed the measured acoustic field to explore the characteristics of a horizontal coherence in shallow water. Signal spatial coherence data were obtained in the continental shelf off the east coast of Korea using a horizontal line array. The array was deployed on the bottom of 130 m water depth and a sound source was towed at 26 m depth in the source-receiver ranges of 1-13 ㎞. The source transmitted 200 ㎐ pure tone. Topography and temperature profiles along the source track were measured to investigate the relationship between the horizontal coherence and environment variations. The beam bearing disturbance and array signal gain degradation is examined as parameters of horizontal coherence. The results show that the bearing disturbance is about ± 8° and seems to be affected by temporal variations of temperature caused by internal waves. The array signal gains show degradation more than 5㏈ by the temporal and spatial variations of temperature and by the down-sloped topography.

• Journal of Astronomy and Space Sciences
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• v.36 no.2
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• pp.45-60
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• 2019

The Earth's outer radiation belt has long received considerable attention mainly because the MeV electron flux in the belt varies often dramatically and at various time scales. It is now widely accepted that the wave-particle interaction is one of the major mechanisms responsible for such flux variations. The wave-particle interaction can accelerate electrons to MeV energies, explaining the observed flux increase events, and can also scatter the electrons' motion into the loss cone, resulting in atmospheric precipitation and thus contributing to flux dropouts. In this paper, we provide a review of the current state of research on relativistic electron scattering and precipitation due to the interaction with electromagnetic ion cyclotron (EMIC) waves in the inner magnetosphere. The review is intended to cover progress made over the last ~15 years in the theory and simulations of various issues, including quasilinear resonance diffusion, nonlinear interactions, nonresonant interactions, effects of finite normal angle on pitch angle scattering, effects due to rising tone emission, and ways to scatter near-equatorial pitch angle electrons. The review concludes with suggestions of a few promising topics for future research.

• Science of Emotion and Sensibility
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• v.21 no.3
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• pp.115-128
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• 2018

Tibetans who live in the Tibetan highlands, the Roof of the World, have their own unique lifestyle wherein they conform to its long history, natural environment, and their own form of clothing culture. In their costumes, the use of colors, patterns and designs express religious meaning and represent the hopes and heart of life, which respects nature. This study aims to analyze the colors used in Tibetan costumes and examine the meaning of these colors. In addition, this study intends to understand the specificity of Tibetan culture through a consideration of the symbolism of the colors of ethnic costumes. By examining the literature and conducting case studies, colors of Tibetan costumes were analyzed through the I.R.I HUE-TONE system. We analyzed 96 photographs of the costumes photographed during the Tibet ceremony costume, photographs seen at the Qinghai Tibet Culture Museum and photographs from the Internet museum. The results revealed the following: First, the most important element of the costumes is connected to the five colors of JangOsaek, which gives meaning to each color. Red, navy blue, yellow, white and green symbolize fire, the sky, earth, clouds or snow, and grasslands, respectively. Second, Tibetan costumes are characterized by bold color contrasts such as red and green, black and white, red and yellow, and yellow and purple to achieve an intense harmony of colors. Third, these fancy costumes express the unique aesthetics of the Tibetan people. The primary colors follow general emotions, but they can also include their own emotion.

• The Journal of Engineering Geology
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• v.17 no.3
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• pp.367-379
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• 2007

This study intended to evaluate hydrogeological characteristics in relation to subsurface geology data obtained from borehole, groundwater level, borehole flowmeter test, and field hydraulic tests. The regression equation of groundwater level (Y) versus ground elevation (X) is expressed by Y=0.75X-7.00 with quite high correlation coefficient of 0.78. Relationship between groundwater level and thickness of landfill, alluvium, and weathered zone results in higher correlation of groundwater level (Y) versus natural log value of weathered tone (A) than other correlations, with the regression equation Y= exp(9.974A)-14.155. The result of groundwater flow measurement in the boreholes indicates that groundwater flows towards between south and southwest, and this approximately agree with regional distribution of groundwater levels.