• Title/Summary/Keyword: L-Systems

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Structures of Fuzzy Relations

  • Min, K.C
    • Journal of the Korean Institute of Intelligent Systems
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    • v.2 no.3
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    • pp.17-21
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    • 1992
  • In this paper we consider the notion of fuzzy relation as a generalization of that of fuzzy set. For a complete Heyting algebra L. the category set(L) of all L-fuzzy sets is shown to be a bireflective subcategory of the category Rel(L) of all L-fuzzy relations and L-fuzzy relation preserving maps. We investigate categorical structures of subcategories of Rel(L) in view of quasitopos. Among those categories, we include the category L-fuzzy similarity relations with respect to both max-min and max-product compositions, respectively, as a cartesian closed topological category. Moreover, we describe exponential objects explicitly in terms of function space.

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On type-2 fuzzy set-valued mappings

  • Kim, H.M.;L.C. Jang;J.D. Jeon
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2001.12a
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    • pp.311-313
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    • 2001
  • In this paper, we define type-2 fuzzy mappings on L-L fuzzy numbers and discuss some properties of these mappings.

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Design of Virtualization of Operating Systems on L4 Kernel (L4 커널 기반에서 운영체제 가상화에 대한 설계)

  • Kim, Dong-Geun;Shin, Dong-Ryeol
    • Proceedings of the IEEK Conference
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    • 2008.06a
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    • pp.659-660
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    • 2008
  • Virtualization of operating systems have already been developed and commercialized in the enterprise computing area. As the computing power of the embedded systems is growing, it is regarded that the virtualization is the important research area. The virtualization is typically established by the micro kernel. L4 kernel is the one example of the micro kernel. In this paper, we propose the architecture for virtualization of Linux over the L4 kernel.

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Competitive Spectrophotometry for Microbial Dipeptide Transport Systems

  • Hwang, Se-Young;Ki, Mi-Ran;Cho, Suk-Young;Lim, Wang-Jin;Yoo, Ick-Dong
    • Journal of Microbiology and Biotechnology
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    • v.6 no.2
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    • pp.92-97
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    • 1996
  • Portage kinetic constants of peptide transport can be measured by competitive spectrophotometry. The kinetic constants of L-Glu-L-Glu transport in Escherichia coli were ascertained using L-Phe-L-3-thia-Phe (PSP) as a detector. Since the production of thiophenol upon intracellular hydrolysis of PSP was competitively inhibited by L-Glu-L-Glu, it was able to compute the kinetic constants of L-Glu-L-Glu using this method. The resulted data were in agreement with the values obtained by the method of Michaelis-Menten kinetics. The potential of this method was examined against dipeptide transport systems in various microorganisms. These results strongly suggest that the overall properties of individual systems for dipeptide transports can be easily characterized by competitive spectrophotometry.

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EXTENSION OF FUZZY LIE SUBALGEBRAS AND FUZZY LIE IDEALS ON U(L)

  • Kim, Chung-Gook;Kim, Hee-Sik
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 1996.10a
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    • pp.101-103
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    • 1996
  • In this note we will discuss extension of fuzzy Lie subalgebra and fuzzy Lie ideals of a Lie algebra L on universal enveloping algebra U(L) of L and will study some relations among them.

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Rural Amenity Resources Survey (농촌어메니티 자원조사 연구)

  • Oh, Yun-Gyeong;Cho, Soon-Jae;Choi, Jin-Yong;Im, Seung-Bin;Ahn, Tong-Mahn;Lee, Jeong-Jae;Lee, Dong-Kun
    • Journal of Korean Society of Rural Planning
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    • v.13 no.1 s.34
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    • pp.1-9
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    • 2007
  • Due to the dramatic industrialization in Korea, rural area has been degraded with incurable problems including community aging, emptying and liabilities overburdens. Rural amenity, the intangible resources that the rural area itself has, is regarded as a breakthrough that can revitalize the rural communities. In fact, the rural area and communities have lots of amenity resources that have been overlooked. Rural area has kept traditions and open green spaces which are highlighted in these days since the life quality has been upgraded and working days in a week was cut off to 5 days. Institute of Rural Resources Development realized the importance of rural amenities and offered the nation wide survey project for rural amenity resources. In this article, the survey project that was implemented by the Korean Society of Rural Planning was narrated in terms of methodologies and procedures. Also the results and the problems were addressed.

Design of a Adaptive Code Tracking Loop for GPS L1/L2C/L5 Receivers (GPS L1/L2C/L5 수신기를 위한 적응 코드추적루프 설계)

  • Choi, Heon-Ho;Lim, Deok-Won;Lee, Sang-Uk;Kim, Ji-Hoon;Lee, Sang-Jeong
    • Journal of Institute of Control, Robotics and Systems
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    • v.17 no.3
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    • pp.283-288
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    • 2011
  • In this paper, an adaptive signal tracking loop for a GPS L1/L2C/L5 receiver is designed. The design parameters is adjusted according to the receiver's operating conditions such as the signal strength and the receiver dynamics by using the different characteristics of GPS L1, L2C and L5 signal. Simulation results show that the tracking accuracy of the proposed signal tracking loop is better than those of L1, L2C and L5 only signal tracking loop.

L-pre-separation axioms in (2, L)-topologies based on complete residuated lattice-valued logic

  • Zeyada, Fathei M.;Abd-Allahand, M. Azab;Mousa, A.K.
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.9 no.2
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    • pp.115-127
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    • 2009
  • In the present paper we introduce and study L-pre-$T_0$-, L-pre-$T_1$-, L-pre-$T_2$ (L-pre-Hausdorff)-, L-pre-$T_3$ (L-pre-regularity)-, L-pre-$T_4$ (L-pre-normality)-, L-pre-strong-$T_3$-, L-pre-strong-$T_4$-, L-pre-$R_0$-, L-pre-$R_1$-separation axioms in (2, L)-topologies where L is a complete residuated lattice.Sometimes we need more conditions on L such as the completely distributive law or that the "$\bigwedge$" is distributive over arbitrary joins or the double negation law as we illustrate through this paper. As applications of our work the corresponding results(see[1,2]) are generalized and new consequences are obtained.