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Jun Zhong - One of the best experts on this subject based on the ideXlab platform.

  • an improved frequency hopping system with no hit zone hopping pattern based on adaptive array receiver for anti interference
    Vehicular Technology Conference, 2019
    Co-Authors: Qi Zeng, Xing Liu, Jun Zhong
    Abstract:

    Anti-interference is a major challenge in wireless communications. In this paper, a new set of optimal no-hitzone(NHZ) frequency-hopping (FH) sequence (so-called NHZ FH pattern) are constructed, which offers lower frequency-hits than other hopping patterns. With such a NHZ FH pattern, an improved FH system using an adaptive beam-forming (BF) receiver (NHZ/FH-BF system) is investigated for the interference mitigation. By combining NHZ/FH and BF techniques, the proposed system can fully harness the advantage of anti-interference from the spatial and the frequency domains to improve the anti-interference capability. The numerical and simulation results show that the anti-interference performance and the spectral efficiency of the proposed NHZ/FH-BF system significantly outperform the traditional systems, i.e., the NHZ/FH system with single antenna and the FH-BF system with the uniformly-distributed FH pattern.

  • VTC Spring - An Improved Frequency-Hopping System with No-Hit-Zone Hopping Pattern Based on Adaptive Array Receiver for Anti-Interference
    2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring), 2019
    Co-Authors: Qi Zeng, Xing Liu, Jun Zhong
    Abstract:

    Anti-interference is a major challenge in wireless communications. In this paper, a new set of optimal no-hitzone(NHZ) frequency-hopping (FH) sequence (so-called NHZ FH pattern) are constructed, which offers lower frequency-hits than other hopping patterns. With such a NHZ FH pattern, an improved FH system using an adaptive beam-forming (BF) receiver (NHZ/FH-BF system) is investigated for the interference mitigation. By combining NHZ/FH and BF techniques, the proposed system can fully harness the advantage of anti-interference from the spatial and the frequency domains to improve the anti-interference capability. The numerical and simulation results show that the anti-interference performance and the spectral efficiency of the proposed NHZ/FH-BF system significantly outperform the traditional systems, i.e., the NHZ/FH system with single antenna and the FH-BF system with the uniformly-distributed FH pattern.

Leo A B Joosten - One of the best experts on this subject based on the ideXlab platform.

  • the macrophage mannose receptor induces il 17 in response to candida albicans
    Cell Host & Microbe, 2009
    Co-Authors: Frank L Van De Veerdonk, Renoud J Marijnissen, Bart Jan Kullberg, Hans J P M Koenen, Shihchin Cheng, Irma Joosten, Wim B Van Den Berg, David L Williams, Jos W M Van Der Meer, Leo A B Joosten
    Abstract:

    Summary The cytokine IL-17 controls neutrophil-mediated inflammatory responses. The pattern recognition receptor(s) that induce Th17 responses during infection, in the absence of artificial mitogenic stimulation with anti-CD3/anti-CD28 antibodies, remain obscure. We investigated the innate immune receptors and pathogen-associated molecular patterns involved in triggering Th17 responses during pathogen-specific host defense. The prototypic fungal pathogen Candida albicans was found to induce IL-17 more potently than Gram-negative bacteria. Candida mannan, but not zymosan, β-glucans, Toll-like receptor (TLR) agonists, or the NOD2 ligand MDP, induced IL-17 production in the absence of anti-CD3/anti-CD28 antibodies. Candida -induced IL-17 response was dependent on antigen-presenting cells and the macrophage mannose receptor (MR), demonstrating that Candida mannan is not simply a mitogenic stimulus. The TLR2/dectin-1 pathway, but not TLR4 or NOD2, amplified MR-induced IL-17 production. This study identifies the specific pattern recognition receptors that trigger the Th17 response induced by a human pathogen in the absence of mitogenic stimulation.

  • the macrophage mannose receptor induces il 17 in response to candida albicans
    Cell Host & Microbe, 2009
    Co-Authors: Frank L Van De Veerdonk, Renoud J Marijnissen, Bart Jan Kullberg, Hans J P M Koenen, Shihchin Cheng, Irma Joosten, David L Williams, Wim B Van Den Berg, Jos W M Van Der Meer, Leo A B Joosten
    Abstract:

    The cytokine IL-17 controls neutrophil-mediated inflammatory responses. The pattern recognition receptor(s) that induce Th17 responses during infection, in the absence of artificial mitogenic stimulation with anti-CD3/anti-CD28 antibodies, remain obscure. We investigated the innate immune receptors and pathogen-associated molecular patterns involved in triggering Th17 responses during pathogen-specific host defense. The prototypic fungal pathogen Candida albicans was found to induce IL-17 more potently than Gram-negative bacteria. Candida mannan, but not zymosan, beta-glucans, Toll-like receptor (TLR) agonists, or the NOD2 ligand MDP, induced IL-17 production in the absence of anti-CD3/anti-CD28 antibodies. Candida-induced IL-17 response was dependent on antigen-presenting cells and the macrophage mannose receptor (MR), demonstrating that Candida mannan is not simply a mitogenic stimulus. The TLR2/dectin-1 pathway, but not TLR4 or NOD2, amplified MR-induced IL-17 production. This study identifies the specific pattern recognition receptors that trigger the Th17 response induced by a human pathogen in the absence of mitogenic stimulation.

H. Rigneault - One of the best experts on this subject based on the ideXlab platform.

Qi Zeng - One of the best experts on this subject based on the ideXlab platform.

  • an improved frequency hopping system with no hit zone hopping pattern based on adaptive array receiver for anti interference
    Vehicular Technology Conference, 2019
    Co-Authors: Qi Zeng, Xing Liu, Jun Zhong
    Abstract:

    Anti-interference is a major challenge in wireless communications. In this paper, a new set of optimal no-hitzone(NHZ) frequency-hopping (FH) sequence (so-called NHZ FH pattern) are constructed, which offers lower frequency-hits than other hopping patterns. With such a NHZ FH pattern, an improved FH system using an adaptive beam-forming (BF) receiver (NHZ/FH-BF system) is investigated for the interference mitigation. By combining NHZ/FH and BF techniques, the proposed system can fully harness the advantage of anti-interference from the spatial and the frequency domains to improve the anti-interference capability. The numerical and simulation results show that the anti-interference performance and the spectral efficiency of the proposed NHZ/FH-BF system significantly outperform the traditional systems, i.e., the NHZ/FH system with single antenna and the FH-BF system with the uniformly-distributed FH pattern.

  • VTC Spring - An Improved Frequency-Hopping System with No-Hit-Zone Hopping Pattern Based on Adaptive Array Receiver for Anti-Interference
    2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring), 2019
    Co-Authors: Qi Zeng, Xing Liu, Jun Zhong
    Abstract:

    Anti-interference is a major challenge in wireless communications. In this paper, a new set of optimal no-hitzone(NHZ) frequency-hopping (FH) sequence (so-called NHZ FH pattern) are constructed, which offers lower frequency-hits than other hopping patterns. With such a NHZ FH pattern, an improved FH system using an adaptive beam-forming (BF) receiver (NHZ/FH-BF system) is investigated for the interference mitigation. By combining NHZ/FH and BF techniques, the proposed system can fully harness the advantage of anti-interference from the spatial and the frequency domains to improve the anti-interference capability. The numerical and simulation results show that the anti-interference performance and the spectral efficiency of the proposed NHZ/FH-BF system significantly outperform the traditional systems, i.e., the NHZ/FH system with single antenna and the FH-BF system with the uniformly-distributed FH pattern.

Francesco B. Bianchi - One of the best experts on this subject based on the ideXlab platform.

  • The Western immunoblotting pattern of anti-mitochondrial antibodies is independent of the clinical expression of primary biliary cirrhosis
    Digestive and Liver Disease, 2005
    Co-Authors: Luigi Muratori, Paolo Muratori, Alessandro Granito, Rodolfo Ferrari, Lorenza Veronesi, Marco Lenzi, Francesco B. Bianchi
    Abstract:

    Abstract Anti-mitochondrial antibodies are the serological markers of primary biliary cirrhosis. We analysed the detailed anti-mitochondrial antibodies patterns to see whether the immunological specificities detected at the time of the diagnosis correlate with the histological, clinical and immunological expression of the disease. One hundred and thirty primary biliary cirrhosis patients were studied at the time of presentation/diagnosis. Anti-mitochondrial antibodies reactivity was dissected and evaluated by Western immunoblotting with bovine heart submitochondrial particles as antigenic source. Six different Western immunoblotting patterns have been identified with the following hierarchy: pattern A (anti-PDC-E2 + anti-E3BP, 38.5%), pattern B (anti-PDC-E2 + anti-E3BP + anti-OGDC-E2, 20.8%), pattern C (anti-PDC-E2 + anti-E3BP + anti-BCOADC-E2 + anti-OGDC-E2, 13.1%), pattern D (anti-PDC-E2 + anti-E3BP + anti-BCOADC-E2, 6.9%), pattern E (anti-BCOADC-E, 6.1%) and pattern F (anti-mitochondrial antibodies negative primary biliary cirrhosis, 14.6%). The different patterns were neither associated with peculiar clinical, biochemical, histological and immunological features nor with the Mayo Risk Score. The anti-mitochondrial antibodies pattern at presentation is independent of the stage of the liver disease; therefore, the Western immunoblotting characterisation of anti-mitochondrial antibodies does not seem to be helpful in identifying the clinical, biochemical or histological expression of primary biliary cirrhosis at the time of the diagnosis.