• Korean Journal of Cognitive Science
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• v.6 no.2
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• pp.5-27
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• 1995

Based on the given data if three experiments that measured word-by-word reading times of the Korean relative-clause sentences,parsing strategies and performance structures in comprehending Korean sentences were suggested.First,results of the significantily longer reading time of nouns than verbs suggested that Korean parsing processing would be primarily occurred at nouns.Seond,four parsing strategies were proposed to explain increased reading times,working memory loads,and parallel function effects.Third,performance structures of sentence comprehension were constructed from the interword reading time differences.The proposed strategies and structures seem to account for the patterns of word-by-word reading times of the five types of the Korean relative-clause se various ideas for further experimentation were discussed.

• The Korean Journal of Zoology
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• v.27 no.3
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• pp.189-197
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• 1984

1979年 10月까지 우리나라 全域에서 採集된 긴마디늑대거미屬 (Paradosa) 4,300 個體를 整理한 結果 3新種 Pardosa herbosa n. sp. (풀늑대거미), P. Koreana n. sp. (한국늑대거미), P. hanrasanensis n. sp. (한라늑대거미)가 發見되었기에 그 記載와 함께 報告한다. 우리나라 긴마디늑대거미屬은 위 3新種이 追加되어 12種이 記錄된다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1995.04a
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• pp.32-40
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• 1995

본 연구에서는 2계층 정보통신 네트워크의 구축에 직접적으로 적용가능한 트리-스타형 2계층 네트워크 설계문제를 다루었다. 정보통신네트워크 설계에의 적용 가능성을 높이기 위하여, 기존의 연구와 달리 네트워크상의 마디와 가지에 설치해야 할 설비들의 다양한 용량제약을 고려할 수 있도록 정립하였다. 또한 네트워크상의 어느 마디쌍간의 물류(정보통신) 수요를 고려할 수 있도록 하였다. 의사결정기준은 설계시에 고려해야 할 네트워크 구축비용(마디 및 가지의 설비비) 및 운영비용(물류비)의 합을 최소화하는 것으로 설정하였다. 이 문제를 혼합 0-1 정수계획 모형으로 정립하였다. 이 모형의 유용성을 살펴보기 위하여 최근 많은 관심을 끌고 있는 CATV 네트워크의 일반형태인 광가입자 선로망의 설계문제를 본 연구모형으로 표현하여 보았다. 이를 토대로 보다 일반적인 다계층 네트워크 설계문제로 확장하는 방안에 대하여도 검토하였다. 마지막으로 본 연구 모형을 정보통신네트워크 설계시에 적용하기 위하여 휴리스틱 해법을 개발할 경우, 문제 특성상 기존의 연구에서 고려하는 해법의 효율성 외에도 통신네트워크의 특성, 비용구조등을 고려해야 할 당위성에 대하여 토론하였다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2006.11a
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• pp.577-588
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• 2006

이 논문에서는 호의 가중치가 음수가 될 수 있는 무향 그래프에서 마디집합들을 선택했을 때, 각 마디집합 사이에 걸쳐 있는 호의 가중치 합을 최대화하는 최대 가중치 합 그래프마디 분리 문제에 대해 연구한다. 우선$P\;{\neq}\;NP$ 라는 가정 하에서, 이 문제는 NP - hard이며 어떠한 근사 계수를 가지는 근사해법도 존재하지 않는다는 것을 밝힌다. 또한 이 문제를 정수 계획으로 풀기 위해, 그래프의 절단면을 나타내는 벡터들이 만드는 다면체의 극대면(facet)을 정의하는 부등식들을 추가 제약식으로 사용하는 branch-and-cut 알고리듬을 제시하고 구현하였다.

• 한국생태학회:학술대회논문집
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• 1999.05a
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• pp.103.1-103.1
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• 1999

• Korean Journal of Plant Taxonomy
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• v.46 no.3
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• pp.326-330
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• 2016

Two naturalized species, Polygonum ramosissimum Michx. (Polygonaceae) and Spergularia bocconi (Scheele) Graebn. (Caryophyllaceae) were found along the southwest seashore of the Korean Peninsula. Polygonum ramosissimum is distinguished from other species in the same genus taxa as follows: not granular achens, lanceolate or oblanceolate leaves. Spergularia bocconi is distinguished from other species in the same genus taxa by having glandular hairs on stems, leaves, peduncles, and outer surfaces of sepals. We provide here a description and photographs of two species and a key to related taxa in Korea.

• Applied Microscopy
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• v.33 no.4
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• pp.315-323
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• 2003

The fine structural characteristics of the spinnerets and spigots of the silk producing apparatus in the adult funnel-web spider, Agelena limbata, were analysed with the light and scanning electron microscopes. Silk producing apparatus of this spider was composed of three pairs of spinnerets (anterior, median, posterior) and four different types of spigots-ampullates, tubuliforms, pyriforms and aciniforms. By the examination of their ultrastructural characteristics, it has been revealed that each spigot on the spinnerets are connected through the typical silk gland within abdominal cavity. Among the three pairs of spinnerets, the posterior pairs were highly elongated and has most characteristic features. Two pairs of large ampullates were connected to anterior spinneret and another two pairs of small ampullates to median spinnerets. Spigots of the tubuliforms were observed only in female and were connected both of median and posterior spinnerets respectively. While spigots of the pyriforms were connected on the anterior spinnerets but aciniforms on both of median and posterior spinnerets respectively.

• Korean journal of applied entomology
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• v.29 no.1
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• pp.1-5
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• 1990

A morphological study on the immature and adult stages of Anagrus incarnatus Haliday was carried out under laboratory condition at 25$\pm$1$^{\circ}C$. The egg is sausage-shaped with a long slender pedicel. The first instar is a bag-shaped larva. The second instar larval form of A. incarnatus is similar to he "histriobdellid" stage. The antenna has 9 and 13 segments of the female and male, respectively. The first funicular segment of the female's antenna is very short, subspherical or globular type and the third funicular segment with one sensory ridge is longer than the forth. The forewing of A. incarnatus has 8-9 rows of discal hairs providing no bare space at the broadest part. The length of ovarian eggs, egg, 1st instar, and 2nd instar of A. incarnatus is 0.165, 0.215, 0.290, and 0.535 mm, respectively, and the width of each stages is 0.025, 0.057, 0.082, and 0.110 mm, respectively. The developmental periods for egg, 1st instar, 2nd instar, prepupa, and pupal stage are about 1, 1, 4, 1, 5-6 days, respectively.pectively.

• The Transactions of the Korea Information Processing Society
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• v.1 no.1
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• pp.129-139
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• 1994

This paper presents a morphological analysis method for the Korean language. The characteristics and adjacency information of the words can be obtained from sentences in a large corpus. Generally a word can be analyzed to a result by applying the adjacency attributes and rules. However, we have to choose one from the several results for the ambiguous words. The collected morpheme's adjacency attributes and relations with neighbor words are recorded in a well designed dictionaries. With this information, abbreviated words as well as ambiguous words can be almost analyzed successfully. Efficiency of morphological analyzer depends on the information in the dictionaries. A morpheme dictionary and a phrase dictionary have been designed with lexical database, and necessary information extracted from the corpus is stored in the dictionaries.

• Korean journal of applied entomology
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• v.47 no.2
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• pp.111-115
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• 2008

This study was conducted to distinguish adult morphology of the giant water bug (Lethocerus deyrollei) between over-wintered (OLD) and new-born (NEW) populations using materials collected from Gyodong island in Gyeonggi-do, Korea, as well as individuals reared in the laboratory (LAB population) as a control. As a result, no fundamental differences were found in external body structure between OLD, NEW, and LAB populations. However, marginal area of basal procoxa in ventral prothorax and jointed part of forefemur and foretibia were greatly worn in the OLD population. Mid-claws were shorter than 0.5 times the length of the 2nd mid-tarsus; the membranous margin of hemelytra was greatly worn; and hairs of the 5th abdominal tergum were greatly reduced in the OLD population.