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Showing 1 to 20 of 24 for “"Mixing Parameter"”.
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Model Robust Regression Based on Generalized Estimating Equations
… estimating equations (GEE) estimate through a mixing parameter on both the mean scale and the linear predictor scale. As a special case, when data are uncorrelated, this amounts to mixing a local likelihood estimate with predictions from a global generalized linear model. Cross-validation …
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Asymptotic Results for Model Robust Regression
… in a straightforward fashion via the use of a mixing parameter, λ. This technique was studied extensively at small samples and was shown to be quite effective at modeling various unusual functions. In 1995, Mays and Birch developed the MRR2 estimate as an alternative to MRR1. This model …
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Measurement of bar{B0} Meson Properties Via Partial Reconstruction of the Decay bar{B0} -> D*+ l- ar{nu}
… of 3.1 fb**{-1}, we measured the B0-bar{B0} mixing parameter chi_d to be 0.189 +/- 0.019 +/- 0.006.
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Measurement of |vcb| Using the Semileptonic Decay Λb → Λcμνμ
<p>A preliminary measurement of the quark-mixing parameter |Vcb| using the exclusive decay Λ0b→ Λ+c μ−νμ is presented. A sample of Λb semileptonic decays is provided by √s = 13TeV proton-proton collisions collected by the LHCb detector in 2017. Λ0b → Λ+c μ−νμX decays are identified from muon …
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Radiation enhanced diffusion of neodymium in single crystal thin film UO2
… by the recombination limited kinetics. Mixing parameter measurements indicated that ballistic mixing was the dominant mechanism of ion mixing. Thermal diffusion was also measured in the temperature range above. A very small yet observable diffusivity was measured at 800 C. A comparison …
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Model-robust quantal regression
… and nonparametric predictions with the use of a mixing parameter. MRQR uses logistic regression as the parametric portion of the model and either kernel or local linear regression as the nonparametric portion of the model. Research has shown that the MRQR procedure can improve the fit of the …
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Model robust regression: combining parametric, nonparametric, and semiparametric methods
… combined in the most efficient proportions via a mixing parameter. Performance is based on bias and variance considerations.
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Radiation-enhanced diffusion of oxygen-18 in uranium dioxide thin films
… is thought to be controlled by anion vacancies. Mixing parameter measurements found ξ = 2.1 ± 0.2〖 Å〗^5 〖eV〗^(-1) on the anion sublattice, which indicated that ballistic mixing was the dominant mechanism of ion-mixing and that thermal spike activity is negligible.
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Investigation of factors that influence coloration in polycarbonate based compounded plastics
… on the output colour, of three process parameters: temperature, screw speed and feed rate. Typical plastic grades and associated colour formulations were selected for experimentation and analysis in consultation with the innovation team of SABIC IP at their Cobourg plant. Included among …
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Light Dark Matter Constraints from a SuperCDMS Cryogenic Silicon Detector with Single-Charge Sensitivity
… mass range of MeV to GeV, dark photon absorption mixing parameter and axion-like particle coupling constant in the mass range of eV to tens of eV. The results turn out to be competitive and world-leading in some of the lower mass ranges. The experiment also provides information on potential …
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Chemical simulation of hydrogen generation in a plasma fuel reformer
… Stirred Reactor (PASR) considered random mixing determined by a frequency mixing parameter, which is directly dependant of the system fluid dynamic properties. Experimental results with methane generated 6%-7% molar of hydrogen and 5% of carbon monoxide. Hydrogen and oxygen balance …
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Reconstruction of B- --> D*° e- nu Decays and Determination of |Vcb|
… dGamma/dw depends on a form factor F(w) parameterizing the strong interaction in the decay process. To find the best descriptive dGamma/dw a fit to the data determines the following two parameters of dGamma/dw: (i) F(1)|Vcb|, the product between F at zero D*°-recoil and the Quark mixing …
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Sequential design augmentation with model misspecification
… misspecification in the parametric model. The mixing parameter is determined adaptively through cross-validation. The augmentation is performed by a new technique called BIIV, the bias-influenced integrated prediction variance. BIIV attempts to select points that both minimizes the integrated …
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HATLINK: a link between least squares regression and nonparametric curve estimation
… to the least squares and kernel fits. The mixing parameter is determined adaptively through cross-validation (PRESS) or by a version of the Cp statistic. Predictions obtained through the HATLINK procedure are shown through simulation studies to be robust to model misspecification by the …
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Collider phenomenology of heavy neutrinos
… is obtained by the tiny lepton number violating parameters. In this work we investigate the signatures of such heavy neutrinos, having mass in the Electroweak scale at the high energy colliders. Based on a simple realization of inverse seesaw model we fix the model parameters to reproduce the …
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Finite Mixture Model Specifications Accommodating Treatment Nonresponse in Experimental Research
… property required for each method. Secondly, the mixing parameter or proportion of nonresponse is bounded between 0 and 1, so does not subscribe to normal distribution theory to enable inference by common methods. This dissertation introduces and evaluates the performance of an information-based …
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A novel approach to upscaling reservoir simulation modelling for polymer processes
… and (4) optimisation of the Todd-Longstaff mixing parameter function. The methodology was evaluated using 1D, 2D and 3D models in the E100 simulator, across homogeneous, layered, and heterogeneous reservoir types. These simulations demonstrated improved alignment with fine-grid results in …
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Alignment of the LHCb Vertex Locator and lifetime measurements of two-body hadronic final states
… to make a competitive measurement of the D mixing parameter y_CP. This uses a lifetime ratio measurement with prompt D->h+h'- decays. A first event selection for prompt D->h+h'- decays is presented. The major hurdle for this measurement is the contribution from secondary D decays. Possible …
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Numerical Modeling of Microscale Mixing Using Lattice Boltzmann Method
… together with analytical measurements. Rapid mixing is essential in such microfluidic systems for various applications e.g., biochemical analysis, sequencing or synthesis of nucleic acids, and for reproducible biological processes that involve cell activation, enzyme reactions, and protein …
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Ion beam mixing of Mo/Al bilayer samples and thermal spike effects
… effect with spike is significant with regard to mixing of the bilayer samples. Furthermore, in addition to the initial contamination of carbon atoms on the surface and at the interface, more carbon atoms were found to be picked up by the surface, this carbon w.as from the vacuum pumps and tended …
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