Search Results - "GODFREY, K. R"

Evaluation of frequency and time-frequency spectral analysis of heart rate variability as a diagnostic marker of the sleep apnoea syndrome by HILTON, M. F, BATES, R. A, GODFREY, K. R, CHAPPELL, M. J, CAYTON, R. M

“…The sleep apnoea/hypopnoea syndrome (SAHS) elicits a unique heart rate rhythm that may provide the basis for an effective screening tool. The study uses the…”
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Identifiability of uncontrolled nonlinear rational systems by Evans, N.D., Chapman, M.J., Chappell, M.J., Godfrey, K.R.

“…In this paper an approach for the identifiability analysis of uncontrolled rational systems is provided. The method is based on the use of a local smooth state…”
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Rule-based autotuning based on frequency domain identification by McCormack, A.S., Godfrey, K.R.

“…A frequency domain procedure is proposed for the automatic tuning of proportional integral derivative (PID) controllers. The nonparametric open-loop frequency…”
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Application of multi-level signals to the identification of direction-dependent processes by Tan, A.H., Godfrey, K.R., Barker, H.A.

“…Theoretical results for the output and the input–output crosscorrelation function are derived for first order direction-dependent processes perturbed using…”
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The structural identifiability and parameter estimation of a multispecies model for the transmission of mastitis in dairy cows by White, L.J., Evans, N.D., Lam, T.J.G.M., Schukken, Y.H., Medley, G.F., Godfrey, K.R., Chappell, M.J.

“…A structural identifiability analysis is performed on a mathematical model for the coupled transmission of two classes of pathogen. The pathogens, classified…”
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The structural identifiability and parameter estimation of a multispecies model for the transmission of mastitis in dairy cows with postmilking teat disinfection by White, L.J., Evans, N.D., Lam, T.J.G.M., Schukken, Y.H., Medley, G.F., Godfrey, K.R., Chappell, M.J.

“…A mathematical model for the transmission of two interacting classes of mastitis causing bacterial pathogens in a herd of dairy cows is presented and applied…”
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Initial estimates for the dynamics of a Hammerstein system by Schoukens, J., Widanage, W.D., Godfrey, K.R., Pintelon, R.

“…This paper studies the generation of initial estimates for the dynamic part of a Hammerstein model. It will be shown that ARMAX or Box–Jenkins models result in…”
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Electricity market equilibrium of nonlinear power systems with reactive power control by Petoussis, A.G., Zhang, X.-P., Petoussis, S.G., Godfrey, K.R.

“…The impact of reactive power control on the electricity market equilibrium is investigated. The effects of limitations on the reactive power generation and…”
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An identifiability analysis of a parent-metabolite pharmacokinetic model for ivabradine by Evans, N D, Godfrey, K R, Chapman, M J, Chappell, M J, Aarons, L, Duffull, S B

“…The paper considers the structural identifiability of a parent-metabolite pharmacokinetic model for ivabradine and one of its metabolites. The model, which is…”
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Similarity transformation approach to identifiability analysis of nonlinear compartmental models by Vajda, S, Godfrey, K R, Rabitz, H

“…Through use of the local state isomorphism theorem instead of the algebraic equivalence theorem of linear systems theory, the similarity transformation…”
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A survey of readily accessible perturbation signals for system identification in the frequency domain by Godfrey, K.R., Tan, A.H., Barker, H.A., Chong, B.

“…There has been a rapid increase recently in the number of software packages available to generate different types of perturbation signals for the purpose of…”
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Structural identifiability of the parameters of a nonlinear batch reactor model by Chappell, M J, Godfrey, K R

“…The similarity transformation approach is used to analyze the structural identifiability of the parameters of a nonlinear model of microbial growth in a batch…”
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Nonlinear compartmental model indistinguishability by Chapman, M.J., Godfrey, K.R.

“…A version of the local state isomorphism theorem is used to show how nonlinear model structures, within some specified class, can be tested for…”
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The generation of binary and near-binary pseudorandom signals: an overview by Ai Hui Tan, Godfrey, K.R.

“…Pseudorandom signals have been widely used for system identification. Maximum length binary (MLB) signals are the best known class of pseudorandom signals,…”
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A coupled drug kinetics-cell cycle model to analyse the response of human cells to intervention by topotecan by Chappell, M.J, Evans, N.D, Errington, R.J, Khan, I.A, Campbell, L, Ali, R, Godfrey, K.R, Smith, P.J

“…Abstract A model describing the response of the growth of single human cells in the absence and presence of the anti-cancer agent topotecan (TPT) is presented…”
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Effect of dose, molecular size, affinity, and protein binding on tumor uptake of antibody or ligand: a biomathematical model by THOMAS, G. D, CHAPPELL, M. J, DYKES, P. W, RAMSDEN, D. B, GODFREY, K. R, ELLIS, J. M. R, BRADWELL, A. R

“…A mathematical model has been developed to determine the best approach to improving tumor targeting with antibody. The amount of antibody in the tumor (tumor…”
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Chronopharmacology and its application to the development of theophylline treatment schedules for asthma by GODFREY, K. R

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Autonomic function assessment using analysis of heart rate variability by Bates, R.A., Hilton, M.F., Godfrey, K.R, Chappell, M.J.

“…Analysis of changes in heart rate can be useful in determining the state of various body systems. In particular the analysis of heart rate variability (HRV) is…”
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CODE: a deconvolution program implementing a regularization method of deconvolution constrained to non-negative values. Description and pilot evaluation by Hovorka, Roman, Chappell, Michael J., Godfrey, Keith R., Madden, Francis N., Rouse, Martin K., Soons, Paul A.

“…A regularization method of deconvolution constrained to non‐negative values is described. The method gives smooth estimates of the input function whilst…”
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Nonlinear pharmacokinetics of tissue-type plasminogen activator in three animal species: a comparison of mathematical models by Godfrey, Keith R., Tanswell, Paul, Bates, Ronald A., Chappell, Michael J., Madden, Francis N.

“…A recent study presented plasma concentrations of tissue‐type plasminogen activator in three different animal species and at several different dose levels. A…”
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