• Title/Summary/Keyword: Distributed resources

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Diversity and Geographic Distribution of Anti-cancer Higher Fungi in Korea

  • Cho, Duck-Hyun
    • Korean Journal of Plant Resources
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    • v.11
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    • pp.51-79
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    • 1998
  • Many higher fungi were collected at Korea from 1976 to 1998. They were identified and surveyed on resources with many reference books. According to the results, fungal fungi were 40 families, 90 general and 215 species. Among them , anti-cancer resources used in Korea were Ganoderma lucidum, Phellinus linteus, Agaricus brazei and Cordyceps militaris. Three species exception Agaricus brazei were distributed in Korea. All these are cultivated in Korea.

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Diversity and Geographic Distribution of Anti-cancer Higher Fungi in Korea

  • Cho, Duck-Hyun
    • Plant Resources
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    • v.2 no.1
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    • pp.31-41
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    • 1999
  • Many higher fungi were collected at Korea from 1976 to 1998. They were identified and surveyed on resources with many reference books. According to the results, fungal fungi were 40 families, 90 genera and 215 species. Among them, anti-cancer resources used in Korea were Ganoderma lucidum, Phellinus linteus, Agaricus brazei and Cordyceps militaris. Three species exception Agaricus brazei were distributed in Korea. All these are cultivated in Korea.

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A Study on Utilization Effect and Implementation Model of Directory Service Based Information Resource Management System (디렉터리 서비스 기반 정보자원 관리시스템의 활용 효과 및 구축 모델에 대한 연구)

  • Lee, Sung-Jun;Kim, Hyuk;Lee, Kwang Soo;Kim, Minsoo
    • Journal of Information Technology and Architecture
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    • v.11 no.4
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    • pp.427-439
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    • 2014
  • Introduction of new information systems due to continuous progress of ICT has made the enterprise IT environment into a mixed pot of various IT resources. Rapidly changing business situation has emphasized the integration of organizational IT resources as one of key competitive advantages. Those distributed IT resources are now demanding to solve the problems not only on their own effective management but also on security and control issues against unauthorized infiltration and information leakages. Under the situation that the number of IT resources is constantly increasing, it is needed to study a management model and its implementation that integrally solves above all problems. In this paper, it is revealed that a directory service can be used to integrally manage distributed IT resources and a directory service based system model for distributed IT resource management is suggested. By implementing an HR solution over active directory service, it is demonstrated that our integrated management model for distributed resources is applicable to real business cases. It is expected that for small and medium sized enterprises with limited IT investments, directory service based IT resource management system can be a cost-effective solution for increasing security threats and lack of governance.

A Study on Classification and Ordination of Adenophora racemosa Population (외대잔대(Adenophora racemosa J.Lee & S.Lee) 개체군의 classification과 ordination 분석)

  • Ji, Yunui;Moon, Byeong Cheol;Lee, A-Yeong;Yoon, Taesook;Song, Hokyung;Choo, Byung Kil;Kim, Ho Kyoung
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.12 no.6
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    • pp.86-98
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    • 2009
  • This study was carried out to investigate vegetation structure and soil properties of Adenophora racemosa population distributed in Jeombongsan, Seoraksan, Odaesan and Dutasan in Gangwon-do, Korea. From August 2007 until September 2009, $2m{\times}2m$ quadrate was established in native area of Adenophora racemosa in order to record a dominants and coverage, and soil factors at 22 sites. It was found that the altitude in the distributed areas for Angelica gigas population was 800 m or more. Adenophora racemosa population was classified into Rhododendron mucronulatum dominant population, Geranium var. hirsutum dominant population, Caret siderosticta dominant population and Aruncus dioicus var. kamtschaticus dominant population. In the site of study, soil pH, electrical conductivity, soil organic matter, available phosphorous, and exchangeable potassium, exchangeable calcium, exchangeable magnesium, exchangeable sodium concentration and total nitrogen were ranged from 5.0~7.1, 0.06~0.65dS/m, 0.96~8.94%, 12.3~32.8mg/kg, 0.12~0.89cmol+/kg, 0.34~10.08cmol+/kg, 0.1~l.4cmol+/kg, 0.02~0.29cmol+/kg and 0~8.4% respectively. According to the results of DCCA, Adenophora racemosa population were distributed in the high available phosphorous and exchangeable potassium, and Rhododendron mucronulatum dominant population was situated on low available potassium and high slope degree, Geranium var. hirsutum dominant population was high altitude, electrical conductivity and exchange magnesium, and Carex siderosticta dominant population and Aruncus dioicus var. kamtschaticus were distributed on high total nitrogen, organic matter, available phosphorous.

Site Characteristics and Stand Structure of Quercus mongolica Forests in the Republic of Korea (한국 신갈나무림의 입지환경과 임분구조)

  • Kwon, Ki Cheol;Han, Sung An;Lee, Don Koo;Jung, In Kwon;Seo, Yong Jin;Shin, Ku Taek;Jeon, Chang Seok
    • Journal of Korean Society of Forest Science
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    • v.111 no.1
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    • pp.100-107
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    • 2022
  • Quercus mongolica is an important deciduous tree species in the Republic of Korea; it covers most of the total natural deciduous forest area in the country. In this study, the site characteristics and stand structure of Q. mongolica forests were investigated at sites where Q. mongolica occupied >50% of the total basal area during the 7th National Forest Inventory period (2016-2020). The total number of circular sample plots (400 m2) of Q. mongolica forests was 1,421. These forests were mainly dominant at >800 m above sea level (a.s.l). However, they were also distributed on north-facing slopes at <600 m a.s.l. and gradually on southern slopes with ascending altitudes. Quercus mongolica forests were distributed in silt loam, loam, or sandy loam soils with relatively high fertility. Dominant species distributed with Q. mongolica included Pinus densiflora, Quercus variabilis, Acer pseudosieboldianum, Fraxinus rhynchophylla, and Quercus serrata. Pinus densiflora and Q. variabilis grew in large DBH classes, Q. serrata grew in middle DBH classes, and A. pseudosieboldianum and F. rhynchophylla grew in small DBH classes. The dominant species distributed at the lower layer of Q. mongolica forests were Sasa borealis, Lindera obtusiloba, Rhododendron mucronulatum, Rhododendron schlippenbachii, Q. mongolica, and Fraxinus sieboldiana.

Parameter Estimation of a Distributed Hydrologic Model using Parallel PEST: Comparison of Impacts by Radar and Ground Rainfall Estimates (병렬 PEST를 이용한 분포형 수문모형의 매개변수 추정: 레이더 및 지상 강우 자료 영향 비교)

  • Noh, Seong Jin;Choi, Yun-Seok;Choi, Cheon-Kyu;Kim, Kyung-Tak
    • Journal of Korea Water Resources Association
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    • v.46 no.11
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    • pp.1041-1052
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    • 2013
  • In this study, we estimate parameters of a distributed hydrologic model, GRM (grid based rainfall-runoff model), using a model-independent parameter estimation tool, PEST. We implement auto calibration of model parameters such as initial soil moisture, multipliers of overland roughness and soil hydraulic conductivity in the Geumho River Catchment and the Gamcheon Catchment using radar rainfall estimates and ground-observed rainfall represented by Thiessen interpolation. Automatic calibration is performed by GRM-MP (multiple projects), a modified version of GRM without GUI (graphic user interface) implementation, and "Parallel PEST" to improve estimation efficiency. Although ground rainfall shows similar or higher cumulative amount compared to radar rainfall in the areal average, high spatial variation is found only in radar rainfall. In terms of accuracy of hydrologic simulations, radar rainfall is equivalent or superior to ground rainfall. In the case of radar rainfall, the estimated multiplier of soil hydraulic conductivity is lower than 1, which may be affected by high rainfall intensity of radar rainfall. Other parameters such as initial soil moisture and the multiplier of overland roughness do not show consistent trends in the calibration results. Overall, calibrated parameters show different patterns in radar and ground rainfall, which should be carefully considered in the rainfall-runoff modelling applications using radar rainfall.