287,354 research outputs found

    Control and Filtering for Discrete Linear Repetitive Processes with H infty and ell 2--ell infty Performance

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    Repetitive processes are characterized by a series of sweeps, termed passes, through a set of dynamics defined over a finite duration known as the pass length. On each pass an output, termed the pass profile, is produced which acts as a forcing function on, and hence contributes to, the dynamics of the next pass profile. This can lead to oscillations which increase in amplitude in the pass to pass direction and cannot be controlled by standard control laws. Here we give new results on the design of physically based control laws for the sub-class of so-called discrete linear repetitive processes which arise in applications areas such as iterative learning control. The main contribution is to show how control law design can be undertaken within the framework of a general robust filtering problem with guaranteed levels of performance. In particular, we develop algorithms for the design of an H? and 2\ell_{2}–\ell_{\infty} dynamic output feedback controller and filter which guarantees that the resulting controlled (filtering error) process, respectively, is stable along the pass and has prescribed disturbance attenuation performance as measured by HH_{\infty} and 2\ell_{2}\ell_{\infty} norms

    J Wu

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    Research School of Social Sciences - Research Scholars - S. Matsuura, D. Hindley, J. D. Playford, K. G. Jones, G. A. Waterson, Dr. R. R. Brown, Dr. Prgybylski, Dr. D. A. Low, Dr. W. E. Salter, S. R. Adke, Mr. G. Docker, A. R. Barcan, Dr. J. C. Harsanyi, Dr. K. H. Burley, Miss Ann Myers, G. P. King, J. Stockwin, Mr. R. G. Boyd, Dr. H. O. Pappe, Dr. J. A. Barnard, R. J. Lawrence, K. G. Pont, J. Caldwell, N. G. Cain, D. W. Dockrill, C. S. Ross, Abraham Harari, I. Fairbanks, Mr. G. Pursell, F. L. Jones, M. Wu, David B. Heron, D. K. Singh, H. Yuan T'ien, Owen Michael Roe, F. S. Henr

    J. C. F. Degerbrot & Sohn Charlottenburg

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    J. C. F. DEGERBROT & SOHN CHARLOTTENBURG J. C. F. Degerbrot & Sohn Charlottenburg ( -

    Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′

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    First evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)

    Wu Rongfu and Wu Decai talking about Temples in Mianning

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    Wu Decai and Wu Rongfu talk about local Mianning temples (Lingshansi), recall visiting temples in their youth, and about temples nowadaysEquipment: Fostex Fr-2 AKG C 480 B+CK61-ULS (cardiod

    Mucroseius squamosus Lindquist & Wu 1991

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    Mucroseius squamosus Lindquist & Wu , 1991 Mucroseius squamosus Lindquist & Wu, 1991: 895. Proctolaelaps hystrix.— Ishikawa, 1977: 184 (in part). Misidentification, according to Lindquist & Wu, 1991: 895. TYPE DEPOSITORY: Canadian National Collection of Insects, Arachnids and Nematodes, Ottawa, Ontario, Canada; accession number 21,192. TYPE LOCALITY AND HABITAT: Chiyoda, Ibaraki, Honshu Island, Japan, on Monochamus alternatus (Animalia: Cerambycidae).Published as part of De Moraes, Gilberto J., Britto, Erika P. J., Mineiro, Jefferson L. De C. & Halliday, Bruce, 2016, Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata), pp. 1-299 in Zootaxa 4112 (1) on page 201, DOI: 10.11646/zootaxa.4112.1.1, http://zenodo.org/record/39947

    A boundary element model for nonlinear viscoelasticity

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    The boundary element methodology is applied to the analysis of non-linear viscoelastic solids. Theadopted non-linear model uses the same relaxation moduli as the respective linear relations but with a time shiftdepending on the volumetric strain. Nonlinearity introduces an irreducible domain integral into the originalintegral equation derived for linear viscoelastic solids. This necessitates the evaluation of domain strains, whichrelies on proper differentiation of an integral with a strong kernel singularity. A time domain formulation isimplemented through a numerical integration algorithm. The effectiveness of the developed numerical tool isdemonstrated through the analysis of a plate with a central crack. The results are compared with respectivepredictions by the finite element metho

    Notes on the Flora of Taiwan (35) — Scutellaria taipeiensis T. C. Huang, A. Hsiao et M. J. Wu sp. nov. (Lamiaceae)

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    A comparative study of corolla types, pollen features, nutlet coat ornamentation and chromosome numbers of Scutellaria (Lamiaceae) species in Taiwan has been conducted. The result reveals that we have a new species so that Scutellaria taipeiensis T. C. Huang, A. Hsiao et M. J. Wu sp. nov. is here proposed. A key to the species, species description and illustrations, and other relevant information are provided

    Mucroseius algonquian Lindquist & Wu 1991

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    Mucroseius algonquian Lindquist & Wu , 1991 Mucroseius algonquian Lindquist & Wu, 1991: 884. Mucroseius monochami Lindquist.—Lindquist, 1962: 974 (in part); McGraw & Farrier, 1969: 64 (in part); Kinn & Linit, 1989: 3 (in part). Misidentification, according to Lindquist & Wu, 1991: 887. Melichares n. sp. nr. monochami.— Moser & Roton, 1971: 1777. Misidentification, according to Lindquist & Wu, 1991: 887. TYPE DEPOSITORY: Canadian National Collection of Insects, Arachnids and Nematodes, Ottawa, Ontario, Canada; accession number 20,980. TYPE LOCALITY AND HABITAT: Mount Albert campground area, Gaspesie Provincial Park, Quebec, Canada, in metathoracic spiracular atria of adult Monochamus marmorator (Animalia: Cerambycidae) collected from mixed Picea and Abies [Plantae: Pinaceae] woodpile.Published as part of De Moraes, Gilberto J., Britto, Erika P. J., Mineiro, Jefferson L. De C. & Halliday, Bruce, 2016, Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata), pp. 1-299 in Zootaxa 4112 (1) on page 200, DOI: 10.11646/zootaxa.4112.1.1, http://zenodo.org/record/39947
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