• Title/Summary/Keyword: distribution-free

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Distribution of Canavanine and Free Amino Acids in Legumes, Robinia pseudo-acacia, Wistaria floribunda, and Canavalia lineata (콩과식물인 아까시나무(Robinia pseudo-acacia), 등나무(Wistaria floribunda) 및 해녀콩(Canavalia lineata)에서 canavanine과 유리아미노산의 분포)

  • Yu, Gyung-Hee;Young Myung Kwon
    • The Korean Journal of Ecology
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    • v.18 no.4
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    • pp.433-440
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    • 1995
  • The constituents and proportions of non-protein free amino acids including canavanine were measured in roots and leaves of legumes, Robinia pseudo-acacia L., Wistaria floribunda L., and Canavalia lineata L. by using high performance liquid chromatography during dormant and fertilizing seasons. in all the three plant species, asparagine was the most abundant amino acid occurring 30% of total free amino acids, and canavanine was the second most abundant amino acid contributing 10% of total free amino acids throughout dormant and fertilizing seasons. In dormant season, roots contained 2 to 3 folds of free amino acids including canavanine and asparagine compared to those in fertilizing season. When proportions of asparagine and canavanine to total gree amino acids in various parts of C. lineata were examined in fertilizinng season, the level of asparagine was the highest in roots while that of canavanine was in seeds. On the basis of these results, it is assumed that canavanine appears and functions as a nitrogen-storing compound in roots and leaves throughout the whole life cycle of the investigated plants.

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Sustainable Competitive Advantages for Regional Development: An Exploratory Study of the China (Anhui) Pilot Free Trade Zone

  • LEE, Jung Wan
    • The Journal of Asian Finance, Economics and Business
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    • v.9 no.7
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    • pp.17-26
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    • 2022
  • This paper analyzes the comparative advantages and development prospects of the China (Anhui) Pilot Free Trade Zone. Based on a SWOT analysis method, this study finds that the Anhui Pilot Free Trade Zone has a set of comparative advantages, including location advantage, rich resources, industrial transformation and new industries, technological innovation capabilities, new patterns for development, and policy support. In recent years, by leveraging its key resources, Anhui Province has been committed to developing an open economy. Furthermore, its economic vitality has increased significantly under preferential policies such as the Belt and Road Initiative, the China-Europe International Freight Shuttle, and the Yangtze River Economic Belt Development Plan. As a result, the total foreign trade has continued to grow. The findings of this study highlight that the comparative advantages are of great significance to the development of the Anhui Pilot Free Trade Zone, which helped expand the scope and openness of the regional economy and foreign investment. However, to achieve the development objectives of the Anhui Pilot Free Trade Zone as planned, these comparative advantages must be developed and converted into a set of sustainable competitive advantages for the regional economy. Therefore, a few development suggestions are put forward.

Free-living Heterotrophic Stramenopile Flagellates from Gippsland Basin, South-eastern Australia

  • Lee, Won-Je
    • ALGAE
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    • v.22 no.1
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    • pp.23-29
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    • 2007
  • Free-living heterotrophic stramenopile flagellates, which lack chloroplasts, were encountered in deep-sea sediments of Gippsland Basin (Australia) and classified into 10 species (8 genera, 5 families, 3 orders). Their descriptions were based on living specimens by light microscopy. Those species rarely found in this study were Bicosoeca gracilipes, Caecitellus parvulus, Cafeteria minuta, Cafeteria roenbergensis, Pseudobodo tremulans, Spumella sp., Paraphysomonas sp., Actinomonas mirabilis, Ciliophrys infusionum and Developayella elegans. Their morphological characters and geographic distribution are presented.

Model-Free Interval Prediction in a Class of Time Series with Varying Coefficients

  • Park, Sang-Woo;Cho, Sin-Sup;Lee, Sang-Yeol;Hwang, Sun-Y.
    • Journal of the Korean Data and Information Science Society
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    • v.11 no.2
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    • pp.173-179
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    • 2000
  • Interval prediction based on the empirical distribution function for the class of time series with time varying coefficients is discussed. To this end, strong mixing property of the model is shown and results due to Fotopoulos et. al.(1994) are employed. A simulation study is presented to assess the accuracy of the proposed interval predictor.

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Some Free-living Heterotrophic Flagellates from Marine Sediments of Inchon and Ganghwa Island, Korea

  • Lee, Won-Je
    • Animal cells and systems
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    • v.6 no.2
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    • pp.125-143
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    • 2002
  • Heterotrophic flagellates occurring in the marine sediments of Inchon and Ganghwa Island are reported. Fifty-six species from 38 genera were encountered in this survey and two new taxa were recorded: Cyranomonas australis sp. nov. and Gweamonas unicus sp. nov. There was little evidence for endemism because all flagellates including the two new taxa described here have been found from other habitats in Australia which are geographically remote from Korea. This study supports the model that free-living heterotrophic flagellates have a world-wide distribution.

The Development Device of Gwangyang Port for International Logistics Center (국제물류거점확보를 위한 광양항의 활성화 방안)

  • Jang, Heung-Hoon
    • Journal of Korea Port Economic Association
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    • v.21 no.3
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    • pp.149-170
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    • 2005
  • With the globalization of economy, there is keen competition among countries to be a logistics hub and companies are striving to be first in establishing logistics system centering on advantageous sites, especially airport and seaports, to perform supply, production and distribution. Gwangyang port has been designated as Free Economy Zone. This paper analyzes many problems and presents various measures to activate Gwangyang port as follows regional economy to promote Gwangyang Free Economy Zone, governmental support, introduction & logistics functions, early development of the hinterland, investment attraction into the area and diversified promotion & marketing activities.

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A Study on the Development Direction of MFTZ (마산자유무역지역 발전방안에 관한 연구)

  • 최해범
    • Proceedings of the Korea Port Economic Association Conference
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    • 2003.07a
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    • pp.69-88
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    • 2003
  • The purpose of this study is to purpose the need of Masan free Trade Zone and the stratege successful implementation. Masan FTZ was established as a center of general free trade and global distribution by means the promotion of foreign investment in 1970s. To promote the development of MFTZ, in can be proposed a) successful technology innovation, b) reforming of related laws and regulations, c) the care of local government, 4) strengthening of marketing activities, e) deeping of comparative advantage of investment, f) encouraging of strategic industries.

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Optical Interconnection and Clocking Using Planar-Integrated Free-Space Optics

  • Jahns, Jurgen;Gruber, Matthias;Lunitz, Barbara;Stolzle, Markus
    • Journal of the Optical Society of Korea
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    • v.7 no.1
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    • pp.1-6
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    • 2003
  • Integration and miniaturization at the systems level are key requirements for photonics applications. Here, we describe the concept of planar integration of free-space optical systems and its use as an optical interconnection technology. Two specific applications will be considered, a parallel chip-to-chip interconnect and an optical clock distribution network.

Effects of Chlorine Residual and Pipe Material on the Biofilm Formation in Drinking Water Distribution Pipe (수도관의 생물막 형성에 미치는 잔류염소와 파이프 재질의 영향)

  • Park, Se-keun;Park, Jae-Woo;Sung, Kwon-Shic;Choi, Sung-Chan;Kim, Yeong-Kwan
    • Journal of Industrial Technology
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    • v.21 no.B
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    • pp.11-20
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    • 2001
  • This laboratory study examined the impact of free chlorine residual and pipe material on the formation of biofilm in drinking water distribution pipe surfaces. Result of heterotrophic plate counts(HPC) of the biofilm in the tap water-supplied reactor averaged $2.17{\times}10^5CFU/cm^2$ on PVC and $2.43{\times}10^5CFU/cm^2$ on STS 316, respectively. HPCs on the surface exposed to the tap water containing 0.2mg/L of free chlorinne residual averaged $4.24{\times}10^4CFU/cm^2$ on PVC and $6.54{\times}10^4CFU/cm^2$ on STS 316, respectively. Average of HPC/Total direct counts in the tap water-supplied reactor ranged from 1.08%(PVC) to 1.26%(STS 316) and from 0.38%(PVC) to 0.65%(STS 316) in the reactor supplemented with disinfectant, respectively. No correlation was observed between disinfectant addition and biofilm density. With regard to the biofilm formation, little difference existed between PVC and STS 316. Yellow and red pigmented bacteria were the dominant expressions in bulk fluid, whereas non-pigmented bacteria were found dominant in the biofilm. Pink/red pigmented bacteria were found to be facultative anaerobic, while yellow pigmented bacteria and non-pigmented bacteria were found to be obligate aerobic.

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Visualization of Permittivity Distribution in GFRP using Full-Field Scanning Free Space Measurement System (전영역 스캐닝 자유공간 측정 시스템을 이용한 GFRP의 유전율 분포 가시화)

  • Hyun, Jong-Min;Ahmed, Hasan;Lee, Jung-Ryul
    • Composites Research
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    • v.31 no.3
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    • pp.99-103
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    • 2018
  • This paper visualizes the full-field permittivity distribution at the standard specimens having known electromagnetic characteristics using a scanning free space measurement (SFSM) system. First, in the two Teflon specimens with different thicknesses, the real and loss tangent of permittivity could be measured and the results agreed to the theoretical and other measurement values. Then the system has been applied to Glass/epoxy and visualized different permittivity distribution depending on the material kind. Therefore, this approach will overcome the point measurement limitation of FSM and can be used for even sub-structural full-field electromagnetic evaluation of stealth and radome structures.