• The Korean Journal of Ecology
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• v.17 no.3
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• pp.319-331
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• 1994

A phutosociological study on the Mongolian oak forest was carried out on Mt. Sorak by the Z-M method. The Mongolian oak forest was classified into one oder, two alliances, one assoication and three commuities; Rhododendro-Quercetalia mongolicae Kim 1990 Lindero-Quercion monogolicae Kim 1990 Vaccinium hirtum v. koreanum-Quercus monogolica community Lespedeza maximowiczii-Quercus monogolica community Pino koreiensis-Quercion mongolicae Kim 1992 Typical community Lichno-Quercetrum monofolicae Kim 1992 Total vascular plant species in invesitigatied sites consited of 193 taxa, and their life-form composition was $H-D_1-R_5-e$ type.

• Proceedings of the Korea Society for Simulation Conference
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• 2003.06a
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• pp.91-100
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• 2003

In this paper we investigate the role that warfare played In the formation of the network of alliances between sites that are associated with the formation of the state in the Valley of Oaxaca, Mexico. A model of state formation proposed by Marcos and Flannery (1996) is used as the basis for an agent-based simulation model. Agents reside in sites and their actions are constrained by knowledge extracted from the Oaxaca Surface Archaeological Survey (Kowalewski 1989). The simulation is run with two different sets of constraint rules for the agents. The first set is based upon the raw data collected in the surface survey. This represents a total of 79 sites and constitutes a minimal level of warfare (raiding) in the Valley. The other site represents the generalization of these constraints to sites with similar locational characteristics. This set corresponds to 987 sites and represents a much more active role for warfare in the Valley. The rules were produced by a data mining technique, Decision Trees, guided by Genetic Algorithms. Simulations were run using the two different rule sets and compared with each other and the archaeological data for the Valley. The results strongly suggest that warfare was a necessary process in the aggregations of resources needed to support the emergence of the state in the Valley.

• Journal of Digital Convergence
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• v.13 no.8
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• pp.221-234
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• 2015

The purpose of this paper is to investigate the differences between successful SMEs in Korea and German hidden champions, with respect to both strategic importance and performance of major competitive dimensions, and mode of technology development. Data were collected through survey and public databases, and the sample comprises successful SMEs located in regional area in Korea. The results show that Korean hidden champions are relatively low regarding specialization of business domain and globalization while German hidden champions have positioned in global niche market. It is also found that local firms utilize technology alliances actively for technology development while German hidden champions rely heavily on internal R&D as a primary source of innovation. Based upon these results, policy directions for fostering local hidden champions were suggested.

• Information Systems Review
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• v.9 no.2
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• pp.85-108
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• 2007

Currently, most of big IT companies attempt to penetrate into Internet portal industry aggressively in order to expand their channels(sale, distribution, marketing, R&D, and so on) and to acquire competitive advantages. Existing Internet portals also have become larger and more complex with continuous developments. Therefore, it is necessary to acquire competitive contents to survive the extreme competition and to satisfy diverse needs of customers. In this paper, we have done qualitative analyses on the cases of domestic and foreign major Internet portals which have acquired contents through of M&A and strategic alliances. In our analyses, we identify five factors crucial to the successes and failures of Internet portals. From the analyses, we find that the acquisition of UCC based contents and subscribers over the critical mass point are the two most important factors that should be simultaneously satisfied for the successful M&As. Additional analyses suggest how to acquire synergy effects from successful M&As.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.11 no.4
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• pp.139-148
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• 2016

The importance of technology commercialization is being emphasized more and more, but high technology excellence does not always lead to a successful business. In addition, companies that invest heavily in basic research and technology development are also not always able to guarantee high profits. This is due to the technical problems when present in step research and development levels are difficult to commercialize. And the market will not work rationally is also the cause of the problem. Therefore, to effectively utilize the resources necessary to ensure such partners to build alliances and cooperation with external funding or manpower is crucial to commercialize the research results of basic science successfully. In previous studies, it has been made many studies in accordance with the approach to the technology (e.g. Research and Development, Management of Technology, Technology Innovation, etc.). But the study of technology commercialization point of view is not being done much. This study should explores the available business required, or realized in the process of researching the basic science and trying to understand the imperfections of the market through the property of technology (tacit knowledge, objectified value of technology and the information asymmetry between innovation subjects, etc.). In addition, this paper, we try to focus on a strategic approach to the role of International Science Business Belt (ISBB) with success in science and technology business as appropriate countermeasures about breaking the 'Valley of Death.

• Korean Journal of Plant Resources
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• v.12 no.3
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• pp.240-252
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• 1999

Floristic composition and phytosociological studies of Mt. Chongok and Mt. Tuta were investigated, and that was compared with the previously published report in 1993. Vascular plants were composed of 100 families, 358 genera, 573 species, 95 varieties, and 18 formae, totaling 686 taxa. The vegetation was relatively well conserved based on Pteridophyta calculation (Pte-Q), 1.13. Compared with the vascular plants of the southern and northern slope area, the vascular plants of the southern slope area were composed of 87 families, 287 genera, 419 species, 73 varieties, and 11 formae, totaling 503 taxa, and those of the northern slope area consisted of 94 families, 293 genera, 427 species, 73 varieties, and 12 formae, totaling 512 taxa, respectively. Also, compared with the taxa in each side, both sides were composed of 332 species in common, southern sides, 172 species and northern sides, 182 species, respectively. The number of species of 11 families belonged to the higher level among total families taxa was composed of 328 species(47.8%). Among them, Compositae and Rosaceae were included much more species than remnant families. Korean endemic species were composed 16 families, 24 genera, 20 species, 8 varieties and 2 formae, totaling 30 species(4.4%). Compared with the Korean endemic taxa in each side, both sides were composed of 14 species in common, southern sides, 11 species and northern sides, 5 species, respectively. A naturalized plants were 20 species, correspond to 9.2% of totaling 218 species appeared in South Korea. Among them,12 species were appeared commonly in both sides, southern sides, 16 species and northern sides, 16 species, respectively. Life form spectra was H-D1-R5-e type and, useful resources plants are as follows; edible source(42.4%), medicinal source(31.5%), ornamental source(15.6%) and pasture source (13.3%) in the total region. The forest vegetation of the southern slope was classified into 1 order, 1 alliances and 5 communities; Rhododendro-Quercetalia mongolicae, Lindero-Quercion mongolicae, Quercus mongolica Typical community, Populus davidiana-Quercus mongolica community, Pinus koraiensis-Taxus cuspidata community, Pinus densiflora-Carex humilis var. nana community, Betula costata-Betula ermanii community. It is considered that the slight difference of the flora and vegetation in the northern and southern slope is mostly due to the topographical and climatic difference. Even closer investigation is required for the more accurate comparison in this area.