Search

Your search keyword '"Kim, Jongsun"' showing total 421 results
Start Over Author "Kim, Jongsun"
421 results on '"Kim, Jongsun"'

170. Biodiversity Changes of Benthic Macroinvertebrates in Tamjin river system by Jangheung Dam Construction

Author

Kim Jongsun, Jung chulwon, and Ham SoonAh

Subjects
Larva, Taxon, Benthic zone, Ecology, Insect Science, Biodiversity, STREAMS, Biology, biology.organism_classification, Mollusca, Global biodiversity, Invertebrate
Abstract

Benthic macroinvertebrates in freshwater include Nematoda, Annelida, Mollusca, and Arthropoda etc. Insects in arthropoda are among the most conspicuous inhabitants of streams and rivers and occupy up to 95% of macroinvertebrates. In most cases, it is the larval stages of these insects that are aquatic, whereas the adults are terrestrial. Tamjin river system was surveyed seasonally for 13 years (1998–2010) to study the biodiversity changes of macroinvertebrtes by Jangheung Dam construction. Total macroinvertebrates consist of 139 species, 101 genera, 59 families, 19 orders, 6 classes in 4 phylums. To start 57 species in 1998 before the dam construction, 41 species were in 1999 which is the first year of construction. After the construction the number of species increased gradually and 73 species emerged in 2009 and 2010. The individual number fluctuated annually and it is difficult to infer the comprehensive results, but ephemerids decreased dramatically after the construction and then they increased gradually since 2006, whereas caddisflies increased rapidly and decreased. Among the studied taxa Ephemeroptera showed the highest diversity relatively, and the next was Trichoptera and Coleoptera. The species occurrence pattern was stable in Ephemeroptera as 15–24 species and fluctuated in Trichoptera ranged from 4 species (2001) to 15 species(2008). In Diptera, 8 species emerged up in 2003 and 2007 and 3 species in 1998 and 1999 and in Coleoptera, 3–6 species emerged in stable pattern.

Published
2011

196. Face Recognition Based on ICA Combined with FLD.

Author

Yi, Juneho, Kim, Jongsun, Choi, Jongmoo, Han, Junghyun, and Lee, Eunseok

Abstract

Recently in face recognition, as opposed to our expectation, the performance of an ICA (Independent Component Analysis) method combined with LDA (Linear Discriminant Analysis) was reported as lower than an ICA only based method. This research points out that (ICA+LDA) methods have not got a fair comparison for evaluating its recognition performance. In order to incorporate class specific information into ICA, we have employed FLD (Fisher Linear Discriminant) and have proposed our (ICA+FLD) method. In the experimental results, we report that our (ICA+FLD) method has better performance than ICA only based methods as well as other representative methods such as Eigenface and Fisherface methods. [ABSTRACT FROM AUTHOR]

Published
2006
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results