• Journal of the Korean Society of Tobacco Science
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• v.9 no.1
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• pp.45-55
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• 1987

For some basic information in tobacco breeding, the modes of inheritance and heritabilities for the twelve agronomic and chemical characters were estimated in the study of eight varieties partial diallel set. Additive gene actions were significant for all characters except total nitrogen content and dominance gene effects were also significant for all characters. Yield, number of leaves per plant, leaf length and leaf shape index were inherited as partial dominance, and overdominance was detected for plant height, stem diameter, internode length, total alkaloid, total nitrogen and total sugar content. Dominant gene showed increasing effects in yield, plant height, stem diameter, internode length, leaf width and total sugar content, but showed decreasing effects in the other characters. The broad heritability was very high for all characters. and the narrow heritability was high in days to flower and yield, but low in internode length, total alkaloid, total nitrogen and total sugar content.

• Journal of the Korean Institute of Telematics and Electronics B
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• v.33B no.11
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• pp.116-126
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• 1996

In this paper, we present a character recognition algorithm in printed korean and english documents including touching characters. We derived two rules to segment and recognize touching characters in the bilingual documents, one from the shape characteristics of korean and english characters of the writing blocks defined in this paper, and the other from the RF (reliability factor) values generated from the classifiers. Overall classification accuracy for the KITE paper of the proposed algorithm was about 96.8% for the english abstract, and about 97.8% for the bilingual parts. Also we confirmed the proposed algorithm significantly improves the accuracy of character segmentation of the actual mixed korean and english documents including touching characters.

• Korean Journal of Plant Taxonomy
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• v.38 no.4
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• pp.477-502
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• 2008

Morphological characters of inflorescence, spikelet, rachilla, glume, lemma and palea about 17 taxa of Korean Poa L. were investigated to evaluate their taxonomic significances. The bulbil present or not, inflorescence shape, callus shape of lemma and surface shape of palea were thought to be the subgenus characters. The keels shapes of palea, the number of lower glume, lateral nerve shape of lemma were thought to be the section characters. The number of floret, rachilla present or not, the number of lower glume, nerve shape of glume, surface shape of lemma were thought to be the species characters. Consequently, 17 taxa of the Korean Poa L. is classified into 3 subgenus (Ochlopoa, Stenopoa, Stenopoa), 7 section(Arenariae, Ochlopoa, Homalopoa, Poa, Pandemos, Tichopoa, Stenopoa). 6 taxa, P. ullungdoensis, P. takeshimana and P. matsumurae, P. nipponica, P. radula, P. viridula, not included in the existing classification system, were suggested to their taxonomic category in infragenic rank, and P. nemoralis, had been included in section Stenopoa of subgenus Stenopoa, was proposed to move to section Poa of subgenus Poa. P. ullungdoensis, reported as new species in 1955, was grasped its taxonomic identity.

• Journal of KIISE:Software and Applications
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• v.27 no.6
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• pp.583-594
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• 2000

The thinning process which is commonly used in extracting skeletons from handwritten Hangul characters has a problem of distorting the original pattern shapes. This paper proposes a method of skeleton extraction using a shape decomposition algorithm. We decompose the character pattern into a set of near convex parts using a shape decomposition algorithm. From the shape-decomposed pattern, we detect the joint parts and extract the skeletons from the parts incident to the joint parts. Then the skeletons not incident to the joint parts are extracted. Finally, the process of skeleton extension is performed to ensure the connectivity. We setup five criteria for the comparison of quality of skeletons extracted by our method and the thinning based method. The comparison shows the superiority of our method in terms of several criteria.

• Korean Journal of Human Ecology
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• v.6 no.1
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• pp.35-44
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• 2003

In Anthropology, ceremonies which human should pass in lives are difined as ‘Rites of Passage’. Each Rite has its own Clothing style, which is little different from general Clothing in shape, composition, color, meaning, etc. This Study shows composition and characters on Birth Ceremony Clothing through Documents and Survey around Chonnam Area. Survey Area is subdivided into 3 parts : Koksung(A Basin of Sumjin River-Eastern Area of Chonnam), Na-ju( A Basin of Yeongsan River-Western Area of Chonnam), and Kangjin(Southern Area of Chonnam). This Study analyses characters on Baenaet Jogori, 100th-day Clothing and First-birthday Clothing in Chonnam Area. In case of Baenaet Jogori, its shape in Survey is similiar to that of documents. In case of 100th-day Clothing, New Jogori and Baji have been made usually. First-Birthday(called “Dol”) Clothing shows difference between male and female infant. Male clothing consists of Pungcha Baji, Jokki, Magoja, Doltti while Female clothing consists of Pungcha Baji, Chima, Jumoni, and Doltti. In making of infant Clothing, 5-colors(Blue. Red, Yellow, White, Black) which consists of basic color in the Theory of the cosmic dual forces and Shape of Letters such as 壽ㆍ福ㆍ亞ㆍ卍 are used usually. This kind of colors and Shape of letters symbolize longevity and fortune. As a result of study, I find what Ritual Clothing in Birth has many symbolic meaning which reflects life-style culture. This study lay meaning on that deals infant clothings as a kind of Ritual Clothing.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.10a
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• pp.38-38
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• 2019

Among the 6500 accessions of the pepper germplasm which conserved at RDA Genebank, 319 accessions were investigated charateristics such as their growth habit, flowering and fruit shape in Capsicum frutescens. All accessions were characterized for their 14 qualitative and 16 quantitative characters. Results revealed that both qualitative and quantitative characters exhibited wide variation among the studied germplasm. The hypocotyl color, which investigated in juvenile stage, was divided in three types such as green, purple, and purple with green, and most of the accessions showed in purple. Flowering starts from 7 May, and most accessions were starting to flower from 27 May to 25 June. The fresh color of the mature pepper were red, yellow, orange, Etc. Fruit shape were mostly elongated, while exhibited ball shape and round shape were a few. The fresh weight of fruits ranged from 0.2 to 42.3, and the diameter of fruit showed from 4.2 to 45.1 mm, respectively. The phenotypic diversity exists in Capsicum frutescens. provide valuable information to improve agronomic traits in pepper breeding program.

• Korean Journal of Plant Taxonomy
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• v.44 no.3
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• pp.191-201
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• 2014

In order to find useful taxonomic morphological characters, 17 taxa from East-Asia Astragalus and Oxytropis anertii were investigated. In this study, seed coat structure, fruit surface, and fruit anatomical structures were selected to classify the species in Astragalus. As a results, useful morphological and anatomical characters in East-Asia Astragalus were life cycle, leaflet shape, raceme, petal color, seed color, pod shape, absent or present of hairs in pod surface, bent degree of dorsal suture, and thickness of endocarp. Using medicinal sources in China, A. floridus, A. membranaceus, A. membranaceus var. mongholicus and A. tongolensis were formed same group. However, these were not completely consensus in the morphological characters. The other hand, A. koraiensis and A. sikokianus, which have controversial taxonomic issue, have clearly no differences morphological characters each other. Therefore, A. koraiensis, A. sikokianus, and A. bhotanensis should be conducted a comparative study on the DNA sequences and molecular cytology in order to clarify the taxonomic treatments in the near future.

• Korean Journal of Plant Taxonomy
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• v.34 no.4
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• pp.321-333
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• 2004

We researched fruit wall anatomical characters about the seven taxa of Krigia and the nearest one relative, Nothocalais cuspidata by making use of the fruit wall anatomy, and inferred systematical similarity. Among these characters, all species of the genus Krigia has identical characters in the shape of fruit and the number of rib, but showed specific differences in the shape of costa, the numbers of libriform fiber cell layers and fiber-sclereid cell layers in mesocarp, and development degree in these characters. Krigia biflora, K. cespitosa, K. occidentalis and K. wrightii have well developed libriform fiber cell, but K. dandelion, K. montana and K. virginica have undeveloped libriform fiber cell, and mostly consist of fiber-sclereid cell layers. According to the fruit wall anatomical characters, K. biflora which belonged to sect. Krigia in the previous classification system is more similar to sect. Cymbia than sect. Krigia.

• Korean Journal of Plant Taxonomy
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• v.37 no.1
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• pp.61-78
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• 2007

The general morphological characters of Lysimchia sect. Spicatae were reviewed. From the results, numerical analyses were conducted based on 34 morphological characters from 14 populations of three species in Korea in order to investigate the key characters among the treated taxa and taxonomic delimitation and to discuss the systematic relationship. Habitat, leaf apices, presence or absent of hair on leaves, stipules, stems and bracts, branch of stems, kind of hair on floral axis and pedicels, shape of florescens were important diagnostic characters to identify the species. The relationship between Lysimachia clethoides and L. barystachys was more close than that of L. fortunei based on the quantitative characters. Also, a new key was made up from the result.

• ALGAE
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• v.18 no.4
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• pp.239-253
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• 2003

The morphotaxonomic characters of the genus Spirogyra were investigated to clarify their taxonomic category and the variation range among species on the basis of comparative morphological and numerical analyses by unialgal cultures and field samples collected from various freshwater habitats in Korea. 25 characters selected on morphological feature of the species were examined on 568 individuals for morphological comparisons and numerical analyses. Width, length and their length/width ratio of vegetative cell, shape of septum, chloroplast number, maximum width, width, length and their length/width ratio of female gametangium, length of male gametangium, size and shape of zygospore, and cell wall ornamentation of the spore showed a comparatively high vector in principal component analysis. In cluster analysis, 15 taxa analysed were divided into 8 major groups by the average taxonomic distance 1.0 level. Considering the morphology and numerical analysis, Spirogyra crassoidea could not be recognized as an independent species, therefore it was treated as a variety of S. ellipsospora. S. koreana (nom. invalidum), recognized as a new taxon, is under the investigation for its clear taxonomic category.