• Journal of KIISE
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• v.45 no.2
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• pp.99-105
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• 2018

One of the spatial statistical analysis, hotspot analysis is one of easy method of see spatial patterns. It is based on the concept that "Adjacent ones are more relevant than those that are far away". However, in hotspot analysis is spatial adjacency must be considered, Therefore, distributed processing is not easy. In this paper, we proposed a distributed algorithm design for hotspot spatial analysis. Its performance was compared to standalone system and Hadoop, Spark based processing. As a result, it is compare to standalone system, Performance improvement rate of Hadoop at 625.89% and Spark at 870.14%. Furthermore, performance improvement rate is high at Spark processing than Hadoop at as more large data set.

• Journal of Environmental Science International
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• v.14 no.1
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• pp.33-40
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• 2005

The size of minimum order stream has a very sensitive effect on runoff analysis model using the divergence characteristic of stream. Therefore, in this study, the threshold area of minimum order stream has been examined the change characteristic of topographical parameters. The subject basin of the research was the upper basin of the Kumho water gage station which is located in the middle of the Kumho river. The 1:25,000 numerical geography which was constructed $10{\times}10m$ mesh was used. The range of investigation of topographical parameters are number of stream order, length, area, slope, basin relief, sinuosity ratio, drainage density and total stream length etc. It was found from the result of analysis that the threshold value of minimum order stream has a very big effect on topographical parameters of basin. It was found that the threshold area of minimum ord er stream revealed under $0.10km^{2}.$ Furthermore, the parameters showed a serious change except for over $0.10km^{2}.$

• Language and Information
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• v.8 no.2
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• pp.73-91
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• 2004

The nominative and accusative postpositions in Korean may intervene between the negative auxiliary verb ANH and its complement verb phrase. As Korean is an OV language, this means that 'verb + {nom, acc} + ANH' as well as the simpler concatenation 'verb + ANH' is possible. This fact, together with an overwhelming regularity of these postpositions' optionality in virtually all constructions, poses a problem for formal approaches to the syntax of the language. Working in a constraint-based grammatical framework shaped by such works as Sag and Wasow (1999) and Copestake (2002), we put forth type hierarchies for major_class, which represents verb inflection, and for pos, which has two immediate subtypes, i.e., htrp_pos and ord_pos. What we call the 'half transparency' of the case postpositions separates them from all the other lexical items in the language. The type htrp_pos is used to constrain one of the two newly proposed head_comp_rules, where a newly proposed feature HEAD2 of a phrase inherits its value from the HEAD feature of the head word. The COMPS list of the negative auxiliary ANH is seen as containing a single phrase whose HEAD is a kind of nominal clause and whose HEAD2 is something that is one of the three maximal types: acc, nom, and null.

• Applied Biological Chemistry
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• v.25 no.3
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• pp.126-134
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• 1982

When $^{14}C-2$, 6-Diethylaniline (2, 6-DEA) was incubated aerobically in soil, $^{14}CO_2$ evolved from non-sterile soil A and B was 6.5 and 10.1%, respectively, in the 21st week. Methanol could extract 3.1 and 13.5% of the radioactivity from soil A and B, respectively, 2, 6-Diethylacetanilide was detected as a degradation product in soil. Chaetomium globosum produced 2, 6-diethyl-p-benzoquinone as a degradation product in pure culture. A possible pathway was proposed to include p-hydroxylation of 2, 6-DEA, formation of quinoneimine, and the subsequent hydrolysis with the release of ammonia.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.17 no.11
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• pp.1156-1166
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• 2004

Antimony profiles by MeV implantation are measured by secondary ion mass spectrometry (SIMS) and spreading resistance (SR). The moments of SIMS and simulated profiles are calculated and compared for the exact range in MeV energy. SRIM, DUPEX, ICECREM, and TSUPREM4 simulation programs are used for the calculation of range 1D, 2D. SRIM is a Monte Carlo simulation program and different inter-atomic potentials can be used for the calculation of nuclear stopping power cross-section (Sn) and range moments. Nevertheless, the range parameters were not influenced from nuclear stopping power in MeV. Through the modification of electronic stopping power cross-section (Se), the results of simulation are remarkably improved and matched very well with SIMS data. The values of electronic stopping power are optimized for Sb high energy implantation. For the electrical activation, Sb implanted samples are annealed under $N_2$ and $O_2$ ambient. Finally, Oxidation retard diffusion(ORD) effect of Sb implanted sample are demonstrated by SR measurements and ICECREM simulation.

• Journal of the Korea Institute of Military Science and Technology
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• v.13 no.5
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• pp.801-807
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• 2010

Requirements management is one of the most essential activities of systems engineering in developing successful weapon systems. Particularly it is very important to consistently manage the traceability among the user requirements, the system requirements, the development specifications and the testing plans throughout the entire life cycle of the weapon system. However, the most part of requirements-related activities has centered around the functional and performance requirements but the integrated logistics support(ILS) requirement has not properly been managed. In this regard, a special attention is needed to develop and manage the ILS requirements. To do so, the ANSI/EIA-632 standard can be referred as a starting point since the ILS requirements of the weapon system under development are specified by the enabling products whereas the functional and performance requirements are covered by the end product requirements. Specifically, we first review and model several cases of previous weapon systems development, which reveals the problem of interest. Then, under the framework of ANSI/EIA-632, we study a hierarchical model for effectively managing ILS requirements by analyzing the features of ILS requirements. Finally, the value of the proposed model is discussed through the case study of electronic warfare equipment.

• Korean Journal of Soil Science and Fertilizer
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• v.10 no.2
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• pp.75-78
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• 1977

Corn (Zea may, L.) was grown alternatively in nutrient solution and hydroxy Al or Al-citrate solution to identify the form of Al which induces Al toxicity on Corn seedlings. Corn seedlings exposed to hydroxy Al solution was very toxic but Al-citrate solution did not show any toxic symptoms. At pH 7 with Al-citrate solution, severe Fe, deficiency was induced probably by the decrease of stability constant of Al-and Fe-oganic complexes and subsequent precipitation of Al-and Fe-as a hydroxide form. Addition of humic acid ameliorated the Al toxicity somewhat at pH 4.7 with hydroxy-Al solution but at pH 7 it induced more severe Fe deficiency.

• Korean Journal of Veterinary Research
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• v.25 no.1
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• pp.77-89
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• 1985

The agar gel precipitation(AGP), indirect hemagglutination(IHA) and indirect enzyme immunoassay(IEIA) tests were used to detect antibodies in pigs naturally infected with Cysticercus cellulosae in Jeju. The results obtained were summarized as follows: 1. Sera collected from pigs naturally infected with Cysticcrcus cellulosae did not react in AGP test. 2. In the IHA test for swine cysticercosis, the peak titers observed were between 1:20 and 1:160 and non-specific reaction was recognized with a few samples among control sera. 3. In the IEIA test, optical density(OD) values were obtained the best results under the condition of OPD-substrats are reacted at room temperature for 5minutes. The OD values of greater than 0.2 were determined as positive and the high titers in positive sera ranged from 1:40 to 1:1,080. 4. Antibodies to swine cysticercosis were detected by IHA and IEIA tests but the latter was more sensitive and specific than the former. 5. In the preparation of Cystisercus antigens, saline extract which was prepared the precipitate of internal membrane treated ultrasonicator were better results than other antigens for serological tests. 6. Amounts of protein in antigens was not related in direct proportion to results of serological reaction.

• Korean Journal of Soil Science and Fertilizer
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• v.9 no.4
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• pp.257-260
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• 1976

Corn (Zea may L.) and Algae (Botridium sp.) were grown in the nutrient solution to investestigate the effects of humic substances on the moderation of high salt toxicity. The results are as follows: 1) The addition of small amount of humic substances (5 ppm C) drastically decreased the high salt toxicity of corn growth. 2) The addition of 20ppm humic substances was also decreased the high salt toxicity in algaegrowth. Different concentration of humic substances, however, did not show significant difference in algae yield.

• Journal of Climate Change Research
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• v.7 no.1
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• pp.69-75
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• 2016

Recently, many countries all over the world have been suffered from disaster caused by climate change. Especially in case of developed countries, the disaster is concentrated in the industry sector. In this research, we analyzed industrial vulnerable homogeneous hotspot for the climate change using spatial autocorrelation analysis on the south Korea. Homogeneous hot spot areas through autocorrelation analysis indicate the spatial pattern of areas interacted each other. Industry sector have responsibility of green house gas emissions, and should adapt to the climate change caused by greenhouse gas already released. So, we integrated the areas sensitive to mitigation option with the areas hardly adapt to climate change because of vulnerable infrastructure. We expected that the result of this research could contribute to the decision-making system of climate change polices.