• Proceedings of the Korean Society of Crop Science Conference
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• 2022.10a
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• pp.216-216
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• 2022

The starch-branching enzymes (BEs) are responsible for synthesizing the amylopectin, which plays an important role in determining the structural and physical properties of starch granules. BE has two differently functioning isoforms (BEI and BEIIa/b) based on their difference in the chain-length pattern by the degree of polymerization (DP), which mainly contributes to the amylopectin chain length distribution in starch biosynthesis. In this study, we investigated functional haplotypes and evolutionary analyses of SBE1 in 374 rice accessions (320 Korean bred and 54 wild). The analyses were performed based on the classified subpopulations. Haplotype analysis generates a total of 8 haplotypes, of which only four haplotypes were functional carrying four functional SNPs in four different exons of SBE1 on chromosome 6. Nucleotide diversity analysis showed a highest pi-value in aromatic group (0.0029), while the lowest diversity value was in temperate japonica (0.0002), indicating the signal of this gene evolution origin. Different directional selections could be estimated by negative Tajima's D value of temperate japonica (-1.1285) and positive Tajima's D value of tropical japonica (0.9456), where the selective sweeps were undergone by both positive purifying and balancing selections. Phylogenetic analysis indicates a closer relationship of the wild with most of the cultivated subgroups indicating a common ancestor for SBE1 gene. FST-values indicate distant genetic relationships of temperate japonica from all other classified groups. PCA and population structure analysis show an admixed structure of wild and cultivated subpopulations in some proportions.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2023.04a
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• pp.15-15
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• 2023

The chloroplast (cp) is an autonomous plant organelle with an individual genome that codes for essential cellular functions. The architecture and gene content of the cp genome is highly conserved in angiosperms. The plastome of Corydalis belongs to the Papaveraceae family, and the genome is comprised of unusual rearrangements and gene content. Thus far, no extensive comparative studies have been carried out to understand the evolution of Corydalis chloroplast genomes. Therefore, the Corydalis platycarpa cp genome was sequenced, and wide-scale comparative studies were conducted using publicly available twenty Corydalis plastomes. Comparative analyses showed that an extensive genome rearrangement and IR expansion occurred, and these events evolved independently in the Corydalis species. In addition, the protein-coding genes accD and the ndh gene loss events occurred in the common ancestor of the Corydalis and sub-clade of the Corydalis lineage, respectively. The gene ndh lost in the Corydalis-sub clade species is distributed predominantly in the Qinghai-Tibetan plateau (QTP) region. The molecular clock analysis suggests that the divergence time of all the ndh gene lost Corydalis sub-clade species occurred in the 44.31 - 15.71 mya. These results coincide very well with the uplift of the Qinghai-Tibet Plateau in the Oligocene and Miocene periods, and maybe during this period, it probably triggered the radiation of the Corydalis species. To the best of the authors' knowledge, this is the first large-scale comparative study of Corydalis plastomes and their evolution. The present study may provide insights into the plastome architecture and the molecular evolution of Corydalis species.

• Journal of KIISE:Databases
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• v.30 no.6
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• pp.641-650
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• 2003

The eXtensible Markup Language(XML) is emerging as a standard format of data representation and exchange on the Internet. There have been researches about storing and retrieving XML documents using the relational database which has techniques in full growth about large data processing, recovery, concurrency control and so on. Since in previous systems same structure information and fundamental operation are used for processing of various kinds of XML queries, only some specific query can be efficiently processed not all types of query. In this paper, we propose a flexible query processing system. To process query efficiently, the proposed system analyzes regular path expression queries, and uses $\theta$-join operation using region numbering values to check ancestor-descendent relationship and equi-join operation using parent's region start value to check parent-child relationship. Thus, the proposed system processes efficiently XML regular path expressions. From the experimental results, we show that proposed XML query processing system is more efficient than previous systems.

• Lingua Humanitatis
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• v.2 no.2
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• pp.85-107
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• 2002

The word play on h(e)art-hunting has become a virtual commonplace in criticism of Chaucer′s Book of the Duchess. Less widely discussed is the third meaning of ME herte, "hurt." The "hart"/ "heart" pun is, however, only implicit in the poem, while the rhyme of "heart" and "hurt" in lines 883-84 makes clear the close association of the terms for Chaucer. Earlier commentators insisted that this was in fact an instance of rime riche or "identical rhyme," but if it is so it is striking that it is the unique instance of the rhyme in Chaucer, whose works are full of occasions for hurt hearts. The essay argues that this is, instead, an instance of near-rhyme and that the confusion in scribal spellings of ME hurten(with ′u,′ ′0,′ ′i,′ ′y,′ and ′e′ ) suggests uncertainties about its root vowel that modem linguistic study has not clarified completely. If the rhyme of herte ("hurt") with herte ("heart") is, however, established by these lines in BD, then it is probably reasonable to ask about all the occasions where characters in the poem are hurt by emotional or physical distress. In the cases of A1cyone and the Man in Blak, the hurt is revealed plainly as the death of a loved one, and Alcyone′s death and the Man in Blak′s return "homwarde" offer contrasting responses to the realization and acknowledgement of their loss. In the case of the Narrator, however, the exact nature of his "hurt" is nowhere made clear and the questions this Jack of clarity raises for the reader remain unanswered when the poem declares its "hert-huntyng" done. Further examination of the Narrator′s character and his role in the poem may reveal him to be a physician himself in need of healing, and this reading of his character may identify him as an ancestor as much of Chaucer′s Pardoner as of the Pilgrim Narrator of Canterbury Tales.

• The KIPS Transactions:PartB
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• v.15B no.4
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• pp.355-364
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• 2008

In general, we can use an inverted index for retrieving element lists from structured documents. An inverted index can retrieve a list of elements that have the same tag name. In this approach, however, the cost of query processing is linear to the length of a path query because all the structural relationships (parent-child and ancestor-descendant) should be resolved by structural join operations. In this paper, we propose an inverted index technique and a novel structural join technique for accelerating XML path query evaluation. Our inverted index can retrieve element lists for path segments in a parent-child relationship. Our structural join technique can handle lists of element pairs while the existing techniques handle lists of elements. We show through experiments that these two proposed techniques are integrated to accelerate evaluation of XML path queries.

• Journal of Families and Better Life
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• v.30 no.6
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• pp.103-114
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• 2012

This paper aims to investigate changes in Korean family structures by reflecting on the perception of traditional family rites and family systems. In-depth interviews were conducted with 17 married middle-aged men (9) and women (8) who had at least one child. Findings were as follows: First, both married middle aged men and women internalized Confucianism. They thought that the head of household, who was male as far as possible, was needed for the formation of a normal family. In addition, both of married middle-aged men and women recognized married women as outsiders based on Chul-ga-we-in-sa-sang. And they put parents-children relationships ahead of couple relationships and supported Jang-ja-woo-dae-sang-sok (privileging the eldest son over the other children in terms of the distribution of family resources and inheritance based on Confucianism). However, there were some differences to support the use of Hang-ryul-ja, which is based on expressing the character of generation by sharing the first name, and the importance of Jok-bo. which is based on traditional family genealogical records. Second, even though women internalized Confucianism, they did not attach traditional meanings to memorial services for ancestors to the extent that men did and defined family members as a procreation family boundaries unlike men, who defined family boundary as original family members and procreation family members. In conclusion, even though family laws and culture have evolved from the patrilineal family system to one which promotes gender equality, married men and women internalize Confucianism. Instead, some transformations are evident from the perspective of females in terms of memorial services for ancestors and family boundaries.

• Journal of the Korean Society of Clothing and Textiles
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• v.38 no.6
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• pp.796-809
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• 2014

This study identifies formativeness and the Korean consciousness of the vernacular design in a Korean designers' collection in order to discover the internal characteristics of vernacular expression elements. The study is based on a theoretical review and an analysis of cases collected from Korean fashion designers' clothes. Research is limited to international collections of clothes presented by Korean fashion designers since 2,000. The process of Korean vernacular designs in fashion were analyzed for formativeness in form, color, pattern and detail. The research findings identified formativeness and Korean's consciousness of modern fashion designs that reflect vernacular designs as follows. First, they are round, flexible line and shape based on assimilated with nature, rhythmic curve to express life force and asymmetry based on an ecstatic world based on nature. Second, a white color explained the pure mind and racial peculiarities in regards to the five colors that expressed the thinking of traditional rituals such as prayers for comfort of life and ancestor worship. Third, there were patterns around shape of nature, praying, and Korea culture. Finally, there were skills of Korean traditional handcrafts such as embroideries, knit-works, gold foils, and quilts where clothes expressed the hardship of life and strong willpower to overcome. In conclusion, the clothing of Korean vernacular designs contains characteristics such as natural beauty, decorativeness, shamanism, and eclecticism.

• Journal of the Institute of Electronics and Information Engineers
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• v.49 no.9
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• pp.196-204
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• 2012

Recently, many applications perform OLAP(On-Line Analytical Processing) over a very large volume of data. Multidimensional data cube is regarded as a core tool in OLAP analysis. This paper focuses on the method how to efficiently compute data cubes in parallel by using a popular parallel processing tool, MapReduce. We investigate efficient ways to implement PipeSort algorithm, a well-known data cube computation method, on the MapReduce framework. The PipeSort executes several (descendant) cuboids at the same time as a pipeline by scanning one (ancestor) cuboid once, which have the same sorting order. This paper proposed four ways implementing the pipeline of the PipeSort on the MapReduce framework which runs across 20 servers. Our experiments show that PipeMap-NoReduce algorithm outperforms the rest algorithms for high-dimensional data. On the contrary, Post-Pipe stands out above the others for low-dimensional data.

• Journal of architectural history
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• v.12 no.3
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• pp.131-148
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• 2003

This study has main purpose to understand the traditional house, not by outside researcher's but by inside dweller's view. The house in Geochang, is descendent house of Jeong-On who was faithful scholar at Chosen Dynasty. In order to understand, I restore firstly the house form and space at traditional era, 60 years ago, and every dwellers not only family members but also servants and guests, by interviewing old matriarch. One of the main rules of the house disposition is Ancester worshipping life. Worshipping floor of Anchae, main building, is located unusually in front of Shrine for Jeong-On, in order to connect all activities directly. Sarangchae, men's building, opened to the funeral mourners, is separated by a wall because women have to serve foods and wail at the backside. Space for everyday life is separated by man/woman, insider/outsider, master/subordinate. Agricultural production is also key factor of the space allocation: big storage buildings for rice crop needed to tenant farming. Both activities of ancestor worship ceremony and guest greeting need large kitchen annex area for food preparation and serving space of rear veranda floor. A number of guests visit the house: guest-greeting activity is taken place from the family pavilion, Neungheo-Jeong and Saranchae by the social position. This study show that architectural space and form of the house reflects exactly dwellers life.

• Journal of architectural history
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• v.20 no.6
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• pp.41-56
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• 2011

This study mainly examined the unit space (room) called 'MARI' of the private houses that were built between the 19c and the early 20c in the insular areas of southwestern sea. Generally, this region has unique historicity (restructure of the insular environment in the 17c and the 18c) and geographic environment that are different from inland regions thus the environment is presumed as a related factor to developments and structures of the private houses. 'MARI' is a noticeable space that is installed in a main building without an exception even in small 3 bedroom private houses. Its nature has location and usage distinctions in an architectural plan with similar 'MARU' of inland Jeollanam-Do. There are large crocks filled with grains at MARI. Thus, MARI is a storage room. Mostly rice and various other kinds of grains are stored in the several crocks, large and small. Many household goods are kept here as well. Another peculiar function of MARI is that this space commonly enshrines ancestral tablets of three generations. Hence, MARI takes a role of a shrine of an aristocratic house from an inland region. Considering the size of the house and space, this seems to be a very unprecedented utilization of area. MARI is located at the top (at the head of the house) on the floor plan. In other words, it is located at the space in the highest rank. The importance of ancestor worship and grains is evinced architecturally. It is really interesting fact that MARI is also located within recently built modern houses (Cheongsan Island, Joyak Island, etc.). Therefore, it can be said that the unique MARI tradition of this region has an intact continuity even today. After all, MARI has a great significance as a unique unit space of insular areas of southwestern sea that is installed in the main buildings of all houses regardless of size and shape of the houses, and their insular locations.