نتایج جستجو برای: varying density

تعداد نتایج: 552513  

Journal: :Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 2011

2009
Kamil Dedecius Ivan Nagy Miroslav Kárný Lenka Pavelková

The paper proposes a new estimating algorithm for linear parameter varying systems with slowly time-varying parameters when the rate of change of individual parameters is different. It introduces a true probability density function, describing ideally the behaviour of parameters. However, as it is unknown, we search for its best approximation. A convex combination of point estimates, defined by...

Genotype imputation from low-density to high-density (SNP) chips is an important step before applying genomic selection, because denser chips can provide more reliable genomic predictions. In the current research, the accuracy of genotype imputation from low and moderate-density panels (5K and 50K) to high-density panels in the purebred and crossbred populations was assessed. The simulated popu...

2013
Mark A. Hopkins

Numerical simulations and experimental measurements were combined to determine the ability of a PIP to measure plasma density and electron collision frequency in a plasma containing spatial gradients as well as time-varying oscillations in the plasma density. Collision frequency was to be measured by the width of the parallel resonance in the real part of plasma impedance-vs.-frequency, while p...

Journal: :Journal of biomedical materials research 2002
Jon A Rowley David J Mooney

Alginates are being increasingly used for cell encapsulation and tissue engineering applications; however, these materials cannot specifically interact with mammalian cells. We have covalently modified alginates of varying monomeric ratio with RGD-containing cell adhesion ligands using carbodiimide chemistry to initiate cell adhesion to these polymers. We hypothesized that we could control the ...

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