Results 271 to 280 of about 1,563,210 (304)

Spinal Implant With Adjustable and Nonlinear Stiffness

Volume 6: 35th Mechanisms and Robotics Conference, Parts A and B, 2011
The human spine is a complex mechanism composed of both passive and active components. The nonlinear stiffness of the passive components provides mechanical stability to the system. There is a need for spinal implants that have nonlinear stiffness to provide this stabilization if the spine loses stiffness through injury, degeneration, or surgery. There
Eric R. Dodgen, Larry Howell, Anton Bowden   +2 more
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An Analysis of Nonlinear Acceleration Coefficients Adjustment for PSO

2012
Linear acceleration coefficients adjustment had been widely used in particle swarm optimization (PSO). In this paper, a novel nonlinear strategy is developed, where the acceleration coefficients including both cognitive component and social component are adjusted nonlinearly to improve the optimization performance within a reasonable iteration times ...
Gang Wang 0016, Zhikun Liu
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Purchasing power parity and nonlinear adjustment

Applied Economics Letters, 2009
38
Pérez Rodríguez, Jorge Vicente, Ledesma Rodríguez,Francisco, Torra Porras, S.   +2 more
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Nonlinear Phase Adjustment of Selective Excitation Pulses

Journal of Magnetic Resonance, 2000
A continuous transformation of an RF waveform with a modified Korteweg-de Vries equation or generalization can be used to adjust the phase behavior of a selective excitation pulse while preserving the magnitude behavior of the spin response. This transformation has applications in removing or adding to the nonlinear phase properties of a selected ...
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Nonlinear adjustment of a front over escarpment

Physics of Fluids, 2008
We present the results of fully nonlinear numerical simulations of the geostrophic adjustment of a pressure front over topography, represented by an escarpment with a linear slope. The results of earlier simulations in the linear regime are confirmed and new essentially nonlinear effects are found. Topography influences both fast and slow components of
Bouchut, F., Scherer, E., Zeitlin, V.
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Transients in the Nonlinear Adjustment to Geostrophy

1990
The consequences of nonlinearity on the character of the waves generated during the adjustment to geostrophic equilibrium of a layer of incompressible fluid are investigated by comparing the results of a linear analysis to the approximate solution to the full nonlinear problem obtained numerically.
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LEVERAGE ADJUSTMENTS FOR DISPERSION MODELLING IN GENERALIZED NONLINEAR MODELS

Australian & New Zealand Journal of Statistics, 2009
SummaryFor normal linear models, it is generally accepted that residual maximum likelihood estimation is appropriate when covariance components require estimation. This paper considers generalized linear models in which both the mean and the dispersion are allowed to depend on unknown parameters and on covariates.
Smyth, G., Verbyla, A.
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Nonlinear Element Compensation by Gain Adjustment and Dither Smoothing

2007 IEEE 22nd International Symposium on Intelligent Control, 2007
A novel approach to linearize nonlinearities commonly inherent in actuators is proposed in this paper. This approach solves the inverse of the nonlinearity without requiring its I/O relations as a one-on-one map, which is necessary for the current inverse-model method By introducing the concept of the equivalent gain, the proposed method systematically
Yun Yao Lee, Chien-Yu Chi, Kunming Li
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Nonlinear control and state space adjustments

UKACC International Conference on Control (CONTROL '98), 1998
In the literature some techniques traditionally used in the study of the existence of solutions of nonlinear differential equations have been extended to solve problems of control, state estimation and parameter identification of nonlinear systems.
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Evaluation of the Effect of Nonlinear Kinetics on Dosage Adjustments of Theophylline

Therapeutic Drug Monitoring, 1983
The pharmacokinetics of theophylline at two different dosage levels were studied in six adult volunteers. The subjects were allowed to reach steady-state serum concentrations of theophylline after 7 days of administration of a sustained-release oral product.
S, Pancorbo, J, Benson, D, Goetz, K, Moore, A, Vaida, D, Johnson   +5 more
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