• Title/Summary/Keyword: Miyagi

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Immunophenotype Characterization for Swine Selected Line, Which is Resistant for the Mycoplasma Pneumonia

  • Katayama, Masafumi;Fukuda, Tomokazu;Okamuara, Toshihiro;Suda, Yoshihito;Suzuki, Eisaku;Uenishi, Hirohide;Suzuki, Keiichi
    • Asian-Australasian Journal of Animal Sciences
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    • v.24 no.7
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    • pp.889-897
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    • 2011
  • Mycoplasma Pneumonia of swine (MPS) decreases the daily growth of pigs, and, co-infection with a virus sometimes causes severe pneumonia. Genetic selection of pigs resistant to the pulmonary MPS lesion might solve the economic loss due to MPS in animal production. Here, we examined the immunophenotype of Landrace line (Miyagino L2), genetically selected to reduce the incidence of pulmonary MPS lesion for 5 generations in Miyagi Prefecture Animal Industry Experiment Station. Although this line is expected to be resistant to the pulmonary MPS lesion, the biological characteristics of its immune function are not clear. We investigated details of the immunorelated phenotype of Miyagino L2 at the hematological and molecular biological level, including cytokine expression, and compared the results with that of non-genetically selected Landrace. Miyagino L2 showed decreased antigen-specific IgG and IgM production and increased CD8-positive T-cell population, and high levels of cortisol concentration, suggesting that the MPS-resistant phenotype is associated these immunological differences. Additionally, T-cell CD4 expression was highly correlated with the MPS expected breeding value. Although the detailed mechanisms underlying this high correlation remain unknown, our result suggested that the genetic selection of the expression level of CD4 might be useful to improve MPS resistance in pig production.

Stabilizing controllers for plants with perturbations

  • Nakamura, Tomio;Obinata, Goro
    • 제어로봇시스템학회:학술대회논문집
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    • 1993.10b
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    • pp.366-371
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    • 1993
  • This paper gives a convenient parameterization for the clas of all stabilizing controllers in the presence of plant perturbation. The perturbations are constrained in such class as plants are stabilizable by a nominal controller. By using the controller stabilizing a given plant with perturbation, we can obtain a parametrization of all stable closed-loop transfer functions, which are affine in the free parameter of the controller. It is easy to extend the controller to the case of a two-degree-of-freedom controller.

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CURVES ON THE UNIT 3-SPHERE S3(1) IN EUCLIDEAN 4-SPACE ℝ4

  • Kim, Chan Yong;Park, Jeonghyeong;Yorozu, Sinsuke
    • Bulletin of the Korean Mathematical Society
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    • v.50 no.5
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    • pp.1599-1622
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    • 2013
  • We show many examples of curves on the unit 2-sphere $S^2(1)$ in $\mathbb{R}^3$ and the unit 3-sphere $S^3(1)$ in $\mathbb{R}^4$. We study whether its curves are Bertrand curves or spherical Bertrand curves and provide some examples illustrating the resultant curves.

Nonlinear Observers for Perspective Time-Varying Linear Systems

  • Itoh, Masahiko
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.83.5-83
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    • 2002
  • Perspective dynamical systems arise in machine vision, in which only perspective observation is available, and the essential problem is to estimate the state and /or unknown parameters for a moving rigid body based on the observed information. This paper proposes and studies a Luenberger-type observer for perspective tim e-varying linear systems. In particular, assuming a given perspective time-varying linear system to be Lyapunov stable and to satisfy some sort of observability condition, it is shown that the estimation error converges exponentially to zero. Finally, a simple numerical exam pie is presented to illustrate the result obtained.

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APPLICATION OF INVERSE DUNAMICS FOR HYBRID TRANSLATIONAL POSITION/FORCE CONTROL OF A FLEXIBLE ROBOT ARM

  • Sasaki, Minoru;Inooka, Hikaru
    • 제어로봇시스템학회:학술대회논문집
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    • 1989.10a
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    • pp.595-599
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    • 1989
  • A new simple method for controlling compliant motions of a flexible robot arm is presented. The method aims at controlling translational tip motion, force and moment by directly computing the base motion or torque. A numerical inversion of Laplace transform is used to obtain the results in the time domain. The results show the effectiveness of the method for the hybrid translational position/force control of a flexible robot arm.

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First Record of the Genus Parydra Stenhammar (Diptera: Ephydridae) in Korea

  • Suh, Sang-Jae;Kwon, Yong-Jung
    • Animal cells and systems
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    • v.13 no.2
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    • pp.229-234
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    • 2009
  • In this paper, three species of the shore fly genus Parydra Stenhammar newly reported from Korea are treated: Parydra (Chaetoapnaea) albipulvis Miyagi, P.(Chaetoapnaea) quadripunctata (Meigen) and P. (Parydra) aquila (Fallen). Key to Korean species and diagnoses are given. Photographs on external features and illustrations of male and female genitalic structures are also provided.

Designing of Multi-tier GIS Architecture for Distributed Network Environment

  • Nie, Yoshinori;Nakamura, Morikazu;Miyagi, Hayao;Onaga, Kenji
    • Proceedings of the IEEK Conference
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    • 2000.07a
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    • pp.541-544
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    • 2000
  • This paper presents a multitier GIS architecture to adapt to large-scale distributed networks and to improve data transfer performance with intelligent caching technique. We design this system using UML based on object-oriented analysis. We show some advantages in our proposed system against the ordinary GIS, in special, suitability to distributed networks.

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