Results 261 to 270 of about 430,734 (311)
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Nonlinear Model for Acetazolamide
Journal of Pharmaceutical Sciences, 1979Intravenous bolus injections of 14C-labeled acetazolamide were made in rabbits. Plasma, urine, and washed red blood cell concentrations were measured, the latter indicating bound drug. AUTOAN and NONLIN were used to fit the plasma data to a linear two-compartment model.
R L, Kunka, A M, Mattocks
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Forward Model Nonlinearity versus Inverse Model Nonlinearity
Groundwater, 2007Abstract The issue of concern is the impact of forward model nonlinearity on the nonlinearity of the inverse model. The question posed is, “Does increased nonlinearity in the head solution (forward model) always result in increased nonlinearity in the inverse solution (estimation of hydraulic conductivity)?” It is shown that the two ...
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A Class of Nonlinear Arch Models
International Economic Review, 1992Summary: A class of nonlinear ARCH models is suggested. The proposed class encompasses several functional forms of ARCH which have been put forth in the literature. A Lagrange multiplier test is developed to test \textit{R. F. Engle's} ARCH specification [Econometrica 50, 987-1007 (1982; Zbl 0491.62099)] against a wider class of models.
Higgins, Matthew L, Bera, Anil K
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A nonlinear model of thermoacoustic devices
The Journal of the Acoustical Society of America, 2002This paper presents a nonlinear, time-domain model of thermoacoustic devices based on cross-sectional averaged equations. Heat transfer perpendicular to the device axis—which lies at the core of thermoacoustic effects—is modeled in a novel and more realistic way. Heat conduction in the solid surfaces surrounding the fluid medium is included.
Karpov, Sergey, Prosperetti, Andrea
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Mathematical Programming, 2013
The present paper is a valuable contribution to the field of nonlinear and continuous optimization via its contribution to a qualitative understanding of such nonlinear and continuous optimization (or: programming) problems which is, then, a foundation for their quantitative, algorithmic and numerical treatment and solution. This study takes place in a
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The present paper is a valuable contribution to the field of nonlinear and continuous optimization via its contribution to a qualitative understanding of such nonlinear and continuous optimization (or: programming) problems which is, then, a foundation for their quantitative, algorithmic and numerical treatment and solution. This study takes place in a
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Nonlinear compartmental model indistinguishability
Automatica, 1994A version of the local state isomorphism theorem is used to show how nonlinear model structures, within some specified class, can be tested for indistinguishability from some given structure via a suitable choice of their respective parameters. This theory is applied to a two-compartmental structure with an assumed Michaelis-Menten elimination from ...
Michael J. Chapman, Keith R. Godfrey
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Nonlinear models with nonlinear memory [PDF]
, 2009 A comprehensive overview of the approches for modeling non linear PAs with on linear memory. The difference between linear and non linear memory effects is presented.
PIROLA, Marco +9 more
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Nonlinear Stochastic Compartmental Models
Mathematical Medicine and Biology, 1985Compartmental models have been widely applied to biological systems where material is transferred between compartments. The simple assumption of linear transfer functions results in a mathematically tractable system, but can underestimate the variation.
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Nonlinear regression: a hybrid model
Computers & Operations Research, 1999zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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International Journal of Mechanical Engineering Education, 2007
The paper discusses an approach to teaching nonlinear analysis of frames. The approach involves illustrating the consequences of various approximations made in nonlinear frame analysis. We start with a fully nonlinear beam model and solve the governing equations by either an analytical or a numerical technique.
Legge, Katherine A., Petrolito, Joseph.
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The paper discusses an approach to teaching nonlinear analysis of frames. The approach involves illustrating the consequences of various approximations made in nonlinear frame analysis. We start with a fully nonlinear beam model and solve the governing equations by either an analytical or a numerical technique.
Legge, Katherine A., Petrolito, Joseph.
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