• Korean Journal of Soil Science and Fertilizer
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• v.47 no.3
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• pp.179-186
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• 2014

Weathering indexes of the typical pedons derived from different parent materials of the soils of Korea were calculated by Kronberg and Nesbitt (1981) to understand weathering degree of the soils which might give a clue of soil formation and characterizing a soil pedon. The weathering index W1 was chemical change index, and the weathering index W2 was silicate dominant index. The chemical compositions of the 49 typic pedons were extracted from the Taxonomical Classification of Korean Soils (NIAST, 1999). The weathering indexes of Kimhae series, derived from fluvio marine material, were the highest among the analyzed soils. Within parent materials, the weathering indexes of the soils derived from limestones parent materials were high, and those derived from phorphyry materials were low. The relationship between W1 and W2 showed unique pattern which implied certain sequence within the same parent materials.

• Journal of Digital Contents Society
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• v.8 no.4
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• pp.451-458
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• 2007

In this paper, I developed a method whereby spam mail is automatically blocked through the connection to link URL. The blocking system works as follows. First, the system extracts information of URL linked to electronic mail which was delivered from any server on the internet. Next, the system lets itself be connected to the web pages through this URL. Last, the system blocks the electronic mail if those web pages contain any key word which was defined as a clue to spam mail.

• Tuberculosis and Respiratory Diseases
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• v.38 no.1
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• pp.83-87
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• 1991

Pulmonary sequestration is an uncommon comgenital disorder and any specific finding has not been reported in chest P-A for diagnosis. We experienced a case of pulmonary sequestraion with visible feeding vessel in chest PA which was well matched with aortic angiography. This finding may provide the clue for the diagnosis.

• The Bulletin of The Korean Astronomical Society
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• v.36 no.1
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• pp.52.2-52.2
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• 2011

The correlation between black hole mass and galaxy stellar velocity dispersion gives an important clue on the black hole growth and galaxy evolution. In the case of AGN, however, it is extremely difficult to measure stellar velocity dispersions in the optical spectra since AGN continuum dilutes stellar absorption features. In contrast, stellar velocity dispersions of active galaxies can be measured in the near-IR, where AGN-to-star flux ratio is much smaller, particularly with the laser-guide-star adaptive optics. However, it is crucial to test whether the stellar velocity dispersion measured from the near-IR spectra is consistent with that measured from the optical spectra. Using the TripleSpec at the Palomar 5-m Telescope, we obtained high quality spectra ranging from 1 to 2.4 micron for a sample of 35 nearby galaxies, for which dynamical black hole masses and optical stellar velocity dispersion measurements are available, in order to calibrate the stellar velocity dispersion in the near-IR. In this poster, we present the initial results based on 10 galaxies, with the stellar velocity dispersion measured in the H-band.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2008.05a
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• pp.270-273
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• 2008

Recycling of buildings is to purpose that confront the social structure and make a new development in the area and improve the local image for using specific location of local area and historic legacies, traditional culture, specialties and it is the element of the regional revitalization which is connected with the culture tour is able to provide a clue of remaking the local industry. In this study of regional revitalization, the purpose of this study is to analysis the case that succeed in recycling the building of the more useful tourist attractions, so, through the study, reach the event for the regional revitalization in our country and the effectively regional revitalization, then it considers the method of recycling design that raises a competitive power.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.12 no.5
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• pp.2162-2176
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• 2018

Chemical reactions have an intricate relationship with the search for better-quality neighborhood solutions to optimization problems. A catalytic reaction for chemical reactions provides a clue and a framework to solve complicated optimization problems. The application of a catalytic reaction reveals new information hidden in the optimization problem and provides a non-intuitive perspective. This paper proposes a new simulated catalytic reaction method for search in optimization problems. In the experiments using this method, significantly improved results are obtained in almost all graphs tested by applying to a graph bisection problem, which is a representative problem of combinatorial optimization problems.

• Bulletin of the Korean Chemical Society
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• v.8 no.2
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• pp.122-126
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• 1987

Oribtal energies for AuH and AgH are calculated by an all-electron relativistic self-consistent-field method using Slater type basis functions. Major relativistic effects for AgH are spin-orbit splittings and those for AuH are large shifts in orbital energies in addition to spin-orbit splittings. Relativistic effects on orbital energies in AgH and AuH imply that changes in correlation energies for relativistic calculations of AuH will be significantly larger than those of AgH, providing partial explanation for the large discrepencies in equilibrium bond length and the dissociation energy between experiments and theoretical estimates for AuH. Large relativistic effects on orbital energies indicate that relativistic contributions should be included for the correct interpretation of ionization potentials for these molecules. Relativistic effects are also evident in dipole moments for these molecules.

• Journal of Korean Classical Literature and Education
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• no.15
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• pp.113-138
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• 2008

Because of difference of syntactic construction, Lee dong- baek's divides into two parts. Though each parts show different principles of thinking, they aim same communicational purpose. The first half of that quotes set phrase of Chinese classical literature and folklore shows principles of expression that represent object by present cultural well-acquainted informations. It reflects process of thinking basing on cultural identity in pursuit of harmonious communication with listener. In the latter half of the work, the object is presented by mimesis and sensuous description. It implicates intention of making correspondence between linguistic sign and object, and shows principles of expression that present more directly by strengthening the motivated between sign and object. Based on discussion above, I hope we will find a clue to make contents of Korean expression education. We will convert these principles of pursuing cultural universality to make sympathy in communication and pleasure of that, or of representing object substantially to make correspondence into the contents of Korean expression education.

• Korean Journal of Food Science and Technology
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• v.51 no.2
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• pp.188-191
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• 2019

In this study, the poor electro-transformant yield of large DNA in bifidobacteria was improved by increasing the DNA concentration, which was amplified by enhancing electroporation conditions: treating the cell wall weakening agent and cell membrane permeabilizing molecule as well as changing the electrical parameter. In the enhanced conditions, the electroporation frequency increased from 15 to 71 times compared to the initial conditions at the same DNA concentration. As the DNA concentration increased, the difference in the electroporation frequency between the two conditions became greater, and the curve of the enhanced conditions seemed to be saturated with a DNA concentration over $4{\mu}g$. The present study provided a clue to the recovery of the electroporation frequency with large DNA and formulated the relationship between the DNA concentration, the DNA size and the electroporation frequency in bifidobacteria. Therefore, this study will contribute to the expansion of molecular genetic studies of bifidobacteria.

• Acta Via Serica
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• v.5 no.1
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• pp.23-56
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• 2020

The study of Putin's Russia should be placed in a broad historiographical context, prevailing in the West. While in the beginning of the post-Soviet era, most observers believed that Russia would reach a Fukuyamian "end of history," the situation is quite different now. At present, Western observers see Putin's Russia as the manifestation of authoritarianism. While this assumption is undoubtedly true, it does not provide much insight into the regime's operational model. Here, a comparison with Renaissance and early modern Europe might provide a clue to the operational model of the regime. Similar to early modern European rulers, Putin limits the use of direct and wide use of force, preferring manipulation, corruption, and the targeted killing of his most important enemies. In foreign policy, Putin has tried to avoid wholesale conflicts and broadly uses mercenaries, whose relationships with the Kremlin are downplayed. The similarities between Putin's regime and early modern European regimes do not mean that their destinies will be the same. In Europe, the Renaissance led to centralized states, whereas in Russia, the "Renaissance" could well lead to the country's disintegration.