• Animal Systematics, Evolution and Diversity
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• v.8 no.1
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• pp.133-140
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• 1992

The telestaceans were collected from Mip'o, Oryukto, CHngmu, Hongdo and Hodo in the Korea Strait, and Sgwip'o in the Cheju Island area from 1970 to 1986 . Pseudocladochonus hicksoni identified in the present study is new to the Korean fauna.

• Animal Systematics, Evolution and Diversity
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• v.2 no.1
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• pp.25-36
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• 1986

Caloptiliza속은 굴나방류중의 가는 나방과(Gracillariidae)에 속하며 많은 종을 포함하는 큰 속으로 3-4 령까지의 어린 유충시에는 잎 조직속에 굴을 만들고 가해하나 4-5령이 되면 굴에서 나와 그 잎 또는 다른 잎의 가장자리로 옮아가 잎을 말고 가해하는 특성을 가지고 있다. 본속은 필자(1983)에 의해 우리나라에서는 처음으로 5 종이 보고된바 있으며 금번 조사에서 6 종이 미기록종으로 보고됨으로 우리나라 산 Caloptilia 속은 총 11 종이 된다.

• Animal Systematics, Evolution and Diversity
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• v.7 no.1
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• pp.81-100
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• 1991

The systematic study of recent freshwater ostracods were conducted on the materials collected from 48 localities in South Korea. Four species of ostracods are identified, and all of them are new to South Korea : Cyprinotus uenoi Brehm , 1936, Heterocypris incongruens (Ramdohr, 1808), Dolerocypris fasciata(O.F.Mller, 1776 ), Dolerocypris sinensis Sars, 1903. Up to now seven species (5 species and 2 subspecies ) of recent ostracods are known to South Korea.

• Animal Systematics, Evolution and Diversity
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• v.7 no.2
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• pp.195-220
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• 1991

This study on the systematic study of ascidians from Korea was based on the materials collected at 41 localities from July 1969 to September 1989. 40 species, eight families, three suborders in two orders were identified, Of these four species were new records for Korean waters ; Polyclinum planum, Didemnum candidum, Stylea plicata, and Molgula calvata. They were described with illustrations, and the species which were characterized by spicules and siphonal armatures were added with plate figures.

• The KIPS Transactions:PartD
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• v.16D no.5
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• pp.755-766
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• 2009

Software architecture allows us to make many decisions about a software system and analyze it even before it exists in order to make systematic and planned development possible. Similarly, architecture-based software evolution planningmakes planned evolution possible by allowing us to make many decisions about evolution of a software system and analyze its evolution at the level of architecture design before software evolution is realized. In this paper, we develop a framework for architecture-based software evolution planning for the class of deterministic evolution plans by defining and relating various essential concepts and developing its valuationmechanism so that a plan with the greatest value among candidate plans can be selected as an optimal plan. A case study is conducted for explicating the framework and exemplifying its usage.

• The Bulletin of The Korean Astronomical Society
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• v.37 no.2
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• pp.76.1-76.1
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• 2012

We have employed SNANA supernova analysis package to make YONSEI Supernova Catalogue 1, which contains distance modulus, light-curve shape parameters, and color or extinction values of each supernova. This database is used to study the dependence of Type Ia supernovae (SNe Ia) luminosities on the host-galaxy morphologies. The redshift range of this catalogue is 0.010 < z < 1.555, and we use three light-curve fitters: SALT2, MLCS2k2 (Rv = 3.1), and MLCS2k2 (Rv = 1.7). We find a systematic difference in the Hubble residual (HR) of $0.1{\pm}0.031$ mag between E-S0 and Scd/Sd/Irr host-galaxies, and of $0.16{\pm}0.044$ mag between passive and star-burst host-galaxies. This difference is significant over the $3{\sigma}$ level. Considering the significant difference in the mean age of stellar population between these morphological types, the difference in the HR reported here suggests that the evolution effect of SNe Ia luminosity should be considered in the cosmological application of SNe Ia data.

• Animal Systematics, Evolution and Diversity
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• v.39 no.4
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• pp.133-154
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• 2023

The Korean Peninsula is geographically located in the centre of Far Eastern Asia and has complex and various climate conditions following longitudinal topology, which would expect to be result in high diversity and endemism of millipede. In this study, the millipede fauna of the Korean Peninsula consists of 68 species plus 5 subspecies from 29 genera, 15 families and 7 orders. Of these species/subspecies, 29 and 12 are endemic in South Korea and North Korea, respectively; nine are recorded in both South Korea and North Korea. Each species has been provided comprehensive information including an original report, taxonomic changes, distribution, and remarks if necessary. Moreover, unsolved taxonomic uncertainty of some species included in this checklist should be investigated through further study.

• The Bulletin of The Korean Astronomical Society
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• v.38 no.2
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• pp.56.1-56.1
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• 2013

Supernovae type Ia (SNe Ia) cosmology is providing the only direct evidence for the presence of dark energy. This result is based on the assumption that the look-back time evolution of SNe Ia luminosity, after light-curve shape correction, would be negligible. However, the most recent compilation of SNe Ia data shows systematic difference in the Hubble residual (HR) between the E and Sd/Irr galaxies, indicating that the light-curve fitters used by the SNe Ia community cannot quite correct for a large portion of the population age effect. In order to investigate this possibility more directly, we have obtained low-resolution spectra for 30 nearby early-type host galaxies. This data set is used to estimate the luminosity-weighted mean ages and metallicities of host galaxies by employing the population synthesis models. We found an interesting trend between the host galaxy age and HR, in the sense that younger galaxies have positive residuals (i.e., light-curve corrected SNe Ia luminosity is fainter). This result is rather independent of the choice of the population synthesis models employed. Taken at face value, this age (evolution) effect can mimic a large fraction of the HR used in the discovery of the dark energy. This result is significant at 1.4 - 3 sigma levels, depending on the light curve fitters adopted, and further observations and analyses are certainly required to confirm the trend reported here.

• Animal Systematics, Evolution and Diversity
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• v.3 no.2
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• pp.117-136
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• 1987

해양연구소에서 1982년부터 1984년에 걸쳐 수행한 한국해역종합해양환경도작성 연구사업과 기타 해양조사중 채집된 황해산 거미불가사리를 조사한 결과, 7과 12속 25종이 동2정되었으며 이 중 Amphiura iridoides, A. syntharacha, Amphioplus asterictus , Opionereis sasakii 및 Stegophiura vivipara의 5종이 한국미기록종으로 밝혀졌다.

• Animal Systematics, Evolution and Diversity
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• v.4 no.1
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• pp.12-14
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• 1988

1986년 3월부터 12월까지가야산 일대에서 채집된 검정파리과 가운데 한국 미기록종 Calliphora subalpina 15개체가 채집되었기에 재기재하여 보고한다. 이 1 종이 추가됨에 따라 우리나라 검정파리과는 15속 25종이 기록된다.