• Title/Summary/Keyword: Hypersensitive

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Optimization of Transonic Airfoil Using GA Based on Neural Network and Multiple Regression Model (유전 알고리듬과 반응표면을 이용한 천음속 익형의 최적설계)

  • Kim, Yun-Sik;Kim, Jong-Hun;Lee, Jong-Soo
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.26 no.12
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    • pp.2556-2564
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    • 2002
  • The design of airfoil had practiced by repeat tests in its first stage, though an airfoil has as been designed based on simulations according to techniques of computational fluid dynamics. Here, using of traditional optimization is unsuitable because a state of flux is hypersensitive to the shape of airfoil. Therefore the paper optimized the shape of airfoil in transonic region using a genetic algorithm (GA). Response surfaces are based on back propagation neural network (BPN) and regression model. Training data of BPN and regression model were obtained by computational fluid dynamic analysis using CFD-ACE, and each analysis has been designed by design of experiments.

Mitogen-Activated Protein Kinase Kinase 3 Is Required for Regulation during Dark-Light Transition

  • Lee, Horim
    • Molecules and Cells
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    • v.38 no.7
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    • pp.651-656
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    • 2015
  • Plant growth and development are coordinately orchestrated by environmental cues and phytohormones. Light acts as a key environmental factor for fundamental plant growth and physiology through photosensory phytochromes and underlying molecular mechanisms. Although phytochromes are known to possess serine/threonine protein kinase activities, whether they trigger a signal transduction pathway via an intracellular protein kinase network remains unknown. In analyses of mitogen-activated protein kinase kinase (MAPKK, also called MKK) mutants, the mkk3 mutant has shown both a hypersensitive response in plant hormone gibberellin (GA) and a less sensitive response in red light signaling. Surprisingly, light-induced MAPK activation in wild-type (WT) seedlings and constitutive MAPK phosphorylation in dark-grown mkk3 mutant seedlings have also been found, respectively. Therefore, this study suggests that MKK3 acts in negative regulation in darkness and in light-induced MAPK activation during dark-light transition.

Testing Bacterial Spot Resistant Lines of Capsicum Pepper for Nuclear Genotype Interacting with Male Sterile Cytoplasm (고추 더뎅이병 저항성 계통의 세포질웅성불임 관련 핵내유전자형 검정)

  • 김병수;황희숙
    • Korean Journal Plant Pathology
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    • v.14 no.3
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    • pp.212-216
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    • 1998
  • Capsicum pepper selections fro PI163192, PI241670, PI244670, PI271322, PI308787, PI322719, and PI369994 were confirmed to be non-hypersensitively resistant to race 3 of Xanthomonas campestris pv. vesicatoria. A resistant cultivar,‘SR’, was shown to be hypersensitive. Four Koran local cultivars, a cytoplasmic male sterile line (A-line) and its maintainer (B-line) were highly susceptible. The resistant selections and cultivars were crossed with a male sterile A-line (Smsms) and fertility of their F1 hybrids was examined by observing he pollen production, testing pollen germination, and quantifying the amount of pollen produced per anther to identify the genotype interacting with the male sterile cytoplasm. The seven resistant PI selections turned out to be restorers (N(S)MsMs) and‘SR’to be a maintainer (Nmsms).

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Mothers' Experiences of Caring for Children with Precocious Puberty: A Q-Methodological Approach (성조숙증 아동 어머니의 돌봄 경험: Q 방법론적 접근)

  • Lee, Hye Jin;You, Mi-Ae
    • Journal of Korean Academy of Nursing
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    • v.50 no.2
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    • pp.255-270
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    • 2020
  • Purpose: This study explored experiences of mothers caring for children with precocious puberty. Methods: Q-methodology was used for analyzing individual subjectivity. Seventy Q-statements were selected and scored by 50 participants on an 11-point scale. The collected data were analyzed using the PC QUANL program. Results: The following eight types of care experiences of mothers of children with precocious puberty were identified: Type I-1: hypersensitive and best-result oriented, Type I-2: treatment burden, Type II-1: treatment-oriented, Type II-2: self-blame, Type III-1: accepting and compliant, Type III-2: treatment confused, Type IV-1: serious and engaged, and Type IV-2: naturalism-oriented. Conclusion: These results can help develop specific education programs based on types of care experiences for the promotion of care among mothers of children with precocious puberty.

Molecular Mechanisms Involved in Bacterial Speck Disease Resistance of Tomato

  • Kim, Young-Jin;Gregory B. Martin
    • The Plant Pathology Journal
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    • v.20 no.1
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    • pp.7-12
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    • 2004
  • An important recent advance in the field of plant-microbe interactions has been the cloning of genes that confer resistance to specific viruses, bacteria, fungi or insects. Disease resistance (R) genes encode proteins with predicted structural motifs consistent with them having roles in signal recognition and transduction. Plant disease resistance is the result of an innate host defense mechanism, which relies on the ability of plant to recognize pathogen invasion and efficiently mount defense responses. In tomato, resistance to the pathogen Pseudomonas syringae pv. tomato is mediated by the specific recognition between the tomato serine/threonine kinase Pto and bacterial protein AvrPto or AvrPtoB. This recognition event initiates signaling events that lead to defense responses including an oxidative burst, the hypersensitive response (HR), and expression of pathogenesis- related genes.

Pseudo-electromagnetism in graphene

  • Son, Young-Woo
    • Proceedings of the Korean Vacuum Society Conference
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    • 2011.02a
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    • pp.11-11
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    • 2011
  • In this talk, I will discuss roles of pseudo vector and scalar potential in changing physical properties of graphene systems. First, graphene under small uniaxial strain is shown to be described by the generalized Weyl's Hamiltonian with inclusion of pseudo vector and scalar potential simultaneously [1]. Thus, strained graphene is predicted to exhibit velocity anisotropy as well as work function enhancement without any gap. Second, if homogeneous strains with different strengths are applied to each layer of bilayer graphene, transverse electric fields across the two layers can be generated without any external electronic sources, thereby opening an energy gap [2]. This phenomenon is made possible by generation of inequivalent pseudo scalar potentials in the two graphene layers. Third, when very tiny lateral interlayer shift occurs in bilayer graphene, the Fermi surfaces of the system are shown to undergo Lifshitz transition [3]. We will show that this unexpected hypersensitive electronic topological transition is caused by a unique interplay between the effective non-Abelian vector potential generated by sliding motions and Berry's phases associated with massless Dirac electrons.

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A Study of Literature on Acupuncture Treatments for the Skin Disease(Eunjin) (은진(隱疹)의 침구치료(鍼灸治療)에 대한 문헌적(文獻的) 고찰(考察))

  • Jang Yun-Seong;Hwang Bae-Yeon;Lee Sang-Ryong
    • Korean Journal of Acupuncture
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    • v.19 no.1
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    • pp.145-151
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    • 2002
  • Medical concept of the skin disease is a symptom like itchs. It outbreakes by immunologic and nonimmunologic mechanisms. The most common case is hypersensitive reaction intermediated by IgE. Other case of immunologic mechanism includes activation of the complement system. Autoimmune antibodies for histamine-secreting mast cell IgE receptors are found in some patients suffer from chronic skin paroxysm. Most common causes of acute skin paroxysm are foods, viruses, parasite infections and drugs. Causes of chronic skin paroxysm are undiscovered. Air pollution, simplification of eating habits, habitual eating of convenience food; drug abuse in present days made skin disease more common. Now many methods of acupunctural treatments are being used clinically. So this report presents some views about acupunctural treatments for the Skin disease.

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Effect of Radix Asteris Herbal Acupuncture at $BL_{13}$ on the Type I Hypersensitivity (자울약침액(紫菀藥鍼液)의 폐유(肺兪) 처치(處置)가 Type I Hypersensitivity에 미치는 영향)

  • Kwon, Hyuk-Sang;Song, Choon-Ho
    • Journal of Acupuncture Research
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    • v.23 no.5
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    • pp.167-175
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    • 2006
  • Objectives : We studied the effects of Radix Asteris herbal acupuncture solution (RAHAS) on the type I hypersensitivity. Methods : In vivo, we measured compound 48/80 induced active systemic anaphylactic shock, anti-DNP IgE induced passive cutaneous anaphylaxis (PCA) and acetic acid induced microvascular permeability using ICR mice. In vitro, we showed effects on cytotoxicity and ${\beta}$-hexosaminidase release from RBL-2H3 cells. Results : In vivo, RAHAS pretreatments at $BL_{13}$ and optional points inhibited active systemic anaphylactic shock induced by compound 48/80 and microvascular permeability increased by acetic acid. PCA was only inhibited by RAHAS pretreatments at $BL_{13}$. In vitro, RAHAS treatments inhibited ${\beta}$-hexosaminidase release. Conclusion : These results suggest that RAHAS may be beneficial in the prevention of type I hypersensitive inflammatory response.

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Implementation and Analysis of Digital Signal Processing System for Intruder Detection using the Variations of the Optical Speckle Patterns (광 스페클 패턴 변화를 이용한 침입자 탐지용 디지털 신호처리 시스템 구현 및 성능 분석)

  • 김인수;강진석;김기만
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.15 no.4
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    • pp.360-367
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    • 2004
  • In this paper, we have implemented the digital signal processing system for intruder detection using speckle pattern variation in multi-me optical fiber with hypersensitive and high fidelity. The performance of the implemented system was evaluated by experiments. In order to improve the system performances we applied the adaptive digital filter. In experimental results we could see 96 % intruder detection and 90 % man/car discrimination probability.

Effect of scutellariae radix pharmacopuncture on the type 1 hypersensitivity (황금약침(黃芩藥鍼)이 Type 1 Hypersensitivity에 미치는 영향)

  • Kim, Yu-Seung;Song, Choon-Ho
    • Korean Journal of Acupuncture
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    • v.23 no.3
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    • pp.111-122
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    • 2006
  • Objectives : We studied the effects of Scutellariae Radix pharmacopuncture solution (SRHAS) on the type 1 hypersensitivity. Methods : In vivo, we measured compound 48/80-induced active systemic anaphylactic shock using ICR mice and anti-DNP IgE-induced passive cutaneous anaphylaxis (PCA) using Sprague Dawley rats. In vitro, we showed effects on cytotoxicity and ${\beta}-hexosaminidase$ release from RBL-2H3 cells. Results : In vivo, SRHAS pretreatments (100% or 50%) at BL13 inhibited active systemic anaphylactic shock induced by compound 48/80. PCA was only inhibited by pretreatments of SRHAS at optional points. In vitro, $0.1{\sim}2%$ SRHAS treatments did not affect cell viability while ${\beta}$-hexosaminidase release was significantly inhibited. Conclusions : These results suggest that SRHAS may be beneficial in the inhibition of type I hypersensitive inflammatory response.

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