• Journal of Microbiology and Biotechnology
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• v.16 no.11
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• pp.1753-1759
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• 2006

Paenibacillus sp. HY-8 isolated from the digestive tracts of the longicorn beetle, Moechotypa diphysis, produced an extracellular endoxylanase with a molecular weight of 20 kDa estimated by SDS-PAGE. The xylanase was purified to near electrophoretic homogeneity from the culture supernatant after ammonium sulfate precipitation, gel filtration, and ionexchange chromatography. The purified xylanase exhibited the highest activities at pH 6.0 and $50^{\circ}C$. The $K_m\;and\;V_{max}$ values were 7.2 mg/ml and 16.3 U/mg, respectively, for birchwood xylan as the substrate. Nucleotide sequence of the PCR-cloned gene was determined to have the open reading frame encoding a polypeptide of 212 amino acids. The N-terminal amino acid sequence and the nucleotide sequence analyses predicted that the precursor xylanase contained a signal peptide composed of 28 amino acids and a catalytically active 19.9-kDa peptide fragment. The deduced amino acid sequence shared extensive similarity with those of the glycoside hydrolase family 11 of xylanases from other bacteria. The predicted amino acid sequence contained two glutamate residues, previously identified as essential and conserved for active sites in other xylanases of the glycoside hydrolase family 11.

• The Journal of the Korea Contents Association
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• v.9 no.5
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• pp.76-83
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• 2009

This paper presents a compression method for animated meshes or mesh sequences which have a shared connectivity and geometry streams. Our approach is based on static semi-regular mesh compression algorithm introduced by Khodakovky et al. Our encoding algorithm consists of two stages. First, the proposed technique creates a semi-regular mesh sequence from an input irregular mesh sequence. For semi-regular remeshing of irregular mesh sequences, this paper adapts the MAPS algorithm. However, MAPS cannot directly be performed to the input irregular mesh sequence. Thus, the proposed remesh algorithm revises the MAPS remesher using the clustering information, which classify coherent parts during the animation. The second stage uses wavelet transformation and clustering information to compress geometries of mesh sequences efficiently. The proposed compression algorithm predicts the vertex trajectories using the clustering information and the cluster transformation during the animation and compress the difference other frames from the reference frame in order to reduce the range of 3D position values.

• Spatial Information Research
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• v.11 no.4
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• pp.493-508
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• 2003

This study proposes a framework of a GIS service network to connect local governments'Land Management Information Systems(LMIS) together. Databases constructed far LMIS's are very crucial information on both administrative business and civil affairs administration. However, they did not give full play to their values because they could not be shared sufficiently. Local governments build their databases individually using diverse GIS solutions. It causes some problems on sharing them. To demonstrate their geniuses, they should be connected to each other within a network for the whole country, and are served whenever and wherever to people who require them. for this, there are two main problems to be solved. Firstly, a GIS service network that handles heterogeneous and distributed computing environments is organized to link every LMIS each other by the GIS service network vertically and horizontally. Secondly, a mechanism should be developed to access the GIS service network readily and to search GIS data efficiently. The needs from every types of user should be satisfied by the mechanism. As the result of investigation of the issues, one of the most possible solution was suggested in this study, which is a Web based approach. To take into account the advance of information technology in the future and the requirements of e-government, stepwise strategies that integrate the LMIS's into a Web based system was recommended.

• Korean Journal of Childcare and Education
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• v.10 no.5
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• pp.273-298
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• 2014

The purpose of the study was to examine the image types of the traditional child rearing by mothers with infancy and early childhood through Q-methodology. To conduct that, Q-group was first formed from mothers who raised their child in traditional way after their brainstorming about the method and interviewing them. Based on the subject's shared statements, Q-standard was made with 40 subjects. The 40 subjects were asked to grade each statement from one to nine and then their responses were analyzed by QUANL program. The image types were classified into 4 groups. There were 'Type 1: Relationship-oriented parenting through harmony' 'Type 2: Archetypal Parenting based on the Korean traditional values,' 'Type 3: Practice-oriented Parenting to respect life,' and 'Type 4: Attachment Parenting modern variants necessary.' This study serves as a momentum to see the impact of traditional child rearing on modern child upbringing by examining mother's viewpoints on traditional child rearing.

• Journal of Life Science
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• v.19 no.9
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• pp.1183-1189
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• 2009

85 individual Spiraea prunifolia for. simpliciflora (Rosaceae) were sampled to examine the genetic diversity and population structure of S. prunifolia for. simpliciflora populations. Inter-simple sequence repeats (ISSR) produced 65 polymorphic loci and identified 78 ISSR genotypes. Three multilocus genotypes were shared by more than one plant within a population. Total genetic diversity values ($H_T$) and inter-locus variation in the within-population genetic diversity ($H_S$) were 0.293 and 0.183, respectively. On a per-locus basis, the proportion of total genetic variation due to differences among populations ($G_{ST}$) was 0.373. This indicated that about 37.3% of the total variation was among populations. ISSR markers are very effective in classifying natural population levels of S. prunifolia for. simpliciflora in Korea. In addition, insights into the relative gene diversity among and within populations of S. prunifolia for. simpliciflora would be useful in plant breeding and also for the development of strategies for ex situ conservation of plant genetic resources.

• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.4
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• pp.106-114
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• 2016

In this paper, we propose an efficient integer inverse transform structure for vp9 decoder. The proposed structure is a hardware structure which is easy to control and requires less hardware resources, and shares algorithms for realizing entire DCT(Discrete Cosine Transform), ADST(Asymmetric Discrete Sine Transform) and WHT(Walsh-Hadamard Transform) in vp9. The integer inverse transform for vp9 google model has a fast structure, named butterfly structure. The integer inverse transform for google C model, unlike universal fast structure, takes a constant rounding shift operator on each stage and includes an asymmetrical sine transform structure. Thus, the proposed structure approximates matrix coefficient values for all transform mode and is used to matrix operation method. With the proposed structure, shared operations for all inverse transform algorithm modes can be possible with reduced number of multipliers compared to the butterfly structure, which in turn manages the hardware resources more efficiently.

• The Plant Pathology Journal
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• v.33 no.3
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• pp.296-306
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• 2017

Sugarcane mosaic virus (SCMV) is one of the most damaging viruses infecting sugarcane, maize and some other graminaceous species around the world. To investigate the genetic diversity of SCMV in Iran, the coat protein (CP) gene sequences of 23 SCMV isolates from different hosts were determined. The nucleotide sequence identity among Iranian isolates was more than 96%. They shared nucleotide identities of 75.5-99.9% with those of other SCMV isolates available in GenBank, the highest with the Egyptian isolate EGY7-1 (97.5-99.9%). The results of phylogenetic analysis suggested five divergent evolutionary lineages that did not completely reflect the geographical origin or host plant of the isolates. Population genetic analysis revealed greater between-group than within-group evolutionary divergence values, further supporting the results of the phylogenetic analysis. Our results indicated that natural selection might have contributed to the evolution of isolates belonging to the five identified SCMV groups, with infrequent genetic exchanges occurring between them. Phylogenetic analyses and the estimation of genetic distance indicated that Iranian isolates have low genetic diversity. No recombination was found in the CP cistron of Iranian isolates and the CP gene was under negative selection. These findings provide a comprehensive analysis of the population structure and driving forces for the evolution of SCMV with implications for global exchange of sugarcane germplasm. Gene flow, selection and somehow homologous recombination were found to be the important evolutionary factors shaping the genetic structure of SCMV populations.

• Journal of The Korean Digital Architecture Interior Association
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• v.6 no.2
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• pp.39-46
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• 2006

"Urban traditional housing" means a type of urban housing which retains characteristics of traditional Korean houses for ordinary people. It is a form of housing created in the process in which traditional Korean ways of life are applied to swift modernization. In Korea's traditional housing, the "court" functioned as a living space that promoted family bonding. The space of the court still remains in the urban traditional housing. However, rapid popularization of the westernized housing form, i.e., apartments, resulted in standardization and westernization of our housing and living patterns, and as a result, the court in urban traditional housing came to lose its original meaning. The objects of this study are residents of urban traditional housing. By studying them, this research aims, firstly, to understand the meaning of the inner court, secondly to analyze correlation between the residents' consciousness of the inner court and their use of the space, and ultimately to find various possible forms of our future housing. For this research, twenty six houses in the Gahoe-dong area in which urban traditional houses are densely built up were investigated. According to the result of this research, the inner court in current urban traditional housing is a space existing inside a house but directly exposed to outer air at the same time. It is a private but shared space. It contributes to forming a pleasant atmosphere by facilitating ventilation and providing sunlight. In addition, it is a living space that actively reflects the Korean living style that values family life.

• The Journal of the Korea Contents Association
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• v.16 no.4
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• pp.275-288
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• 2016

A decision tree analysis was performed by categorizing the idea sketches produced in the group environment into three different levels of visual stimuli ambiguity (vague, ambiguous, and definite) and two idea-sharing situations (before and after). We then examined the predicted values for the creativity of each group's idea sketches, the factors that led to high creativity scores, and their standards. The results of the analyses indicated that the Resistance to Premature Closure, Originality, Elaboration, ness, and Similarity represented important predictors of the creativity of design idea sketches according to the level of ambiguity of the visual stimuli used and whether ideas were shared or not. The group presented with vague stimuli after sharing ideas scored the highest predicted creativity value and the group presented with definite stimuli after sharing ideas scored the lowest predicted creativity value.

• Journal of Korea Multimedia Society
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• v.7 no.1
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• pp.1-11
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• 2004

In this paper. we propose a storage system for XML documents using relational databases. Additional processing is required to store XML documents in the relational databases due to the discrepancy between XML structures and relational schema. This study aims to store XML documents with DTD in the relational databases. We propose the association inlining that exploits shred inlining and hybrid inlining and avoids relation fragments and excessive joins. Experiments show some improvements in the performance with the proposed method. The information of the storage structures is extracted from the simplified DTD. Existing map classes are extended in order to map various structures of XML to relational schema. Map classes are defined for various structures such as elements with multiple values, elements with multiple super elements, and elements with recursive structures through analyzing XML documents. Map files that are XML structures and used in generating SQL statements are created by using the extracted information of storage structures and map classes.