Results 201 to 210 of about 1,594 (242)

Sieve least squares estimation for partially nonlinear models

Statistics & Probability Letters, 2010
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Song, Lixin, Zhao, Yue, Wang, Xiaoguang
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Nonlinear scale-space from n-dimensional sieves

1996
The one-dimensional image analysis method know as the sieve[1] is extended to any finite dimensional image. It preserves all the usual scale-space properties but has some additional features that, we believe, make it more attractive than the diffusion-based methods. We present some simple examples of how it might be used.
J. Andrew Bangham, Richard W. Harvey, Paul D. Ling, Richard V. Aldridge   +3 more
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Strong consistency of a sieve estimator for the variance in nonlinear regression

Statistics & Probability Letters, 1992
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Bhattacharyya, B. B., Richardson, G. D.
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Nonlinear kinetics of oxygen and nitrogen sorption on carbon molecular sieves

Journal of Porous Materials, 1996
Equilibrium and kinetics of oxygen and nitrogen sorption in two different carbon molecular sieves (CMS) have been modeled. In both CMS materials, equilibrium characteristics are adequately described by the Langmuir model. However, for kinetics of sorption, one CMS followed classic Fickian diffusion, while the other sample did not.
Y. Y. Trifonov, T. C. Golden
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The nonlinear sieve problem and applications to thin films

Asymptotic Analysis, 2004
We consider variational problems defined on domains ‘weakly’ connected through a separation hyperplane (‘sieve plane’) by an ε‐periodically distributed ‘contact zone’. We study the asymptotic behaviour as ε tends to 0 of integral functionals in such domains in the nonlinear and vector‐valued case, showing that the asymptotic memory of the sieve is ...
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A Dynamic Model of a Molecular Sieve Bed With Nonlinear and Coupled Isotherms

Journal of Dynamic Systems, Measurement, and Control, 1983
A mathematical model of the O2-N2 separation process in a molecular sieve bed was developed and experimentally verified. Oxygen and nitrogen breakthrough experiments were performed on a single bed packed with molecular sieve 5A. In these experiments, the bed had initially adsorbed either pure oxygen or nitrogen and then a constant inlet flow of ...
J. J. Beaman, A. J. Healey, J. Werlin
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Inclusion tuning of nonlinear optical materials: SHG of organic guests in molecular sieve hosts

Solid State Ionics, 1989
Abstract The use of inclusion for the development of new nonlinear optical materials is reviewed and a study of the relative intensities of second harmonic generation (SHG) in sorbate complexes of p-nitroaniline (NA) and 2-methyl-p-nitroaniline (MNA) in molecular sieve hosts is presented.
S COX, T GIER, G STUCKY, J BIERLEIN
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Nonlinear Photon Sieves for High‐Fidelity Wavefront Engineering

Laser & Photonics Reviews
Abstract Domain‐engineered nonlinear photonic crystals have long served as versatile platforms for structured light modulation, leveraging spatially dependent nonlinearity to control the wavefronts of nonlinear interacting waves. However, most of these crystals rely on classical nonlinear holography, which is limited to unidirectional
Jia‐chen Yang, Wei Chen, Ling‐ling Ma, An‐zhuo Yu, Jin‐tao Pan, Jin‐tao Fan, Ming‐lie Hu, Yan‐qing Lu   +7 more
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Scanning molecular sieve chromatography of interacting protein systems: Nonlinear least-squares analysis of small zone experiments

Analytical Biochemistry, 1986
A simple routine for nonlinear least-squares analysis is applied to small zone scanning data, where calibration of the gel column requires the use of fully characterized markers of known molecular size. Application of nonlinear least-squares analysis eliminates the difficulty encountered because of scarcity of calibrating markers for gels whose ...
E E, Brumbaugh, M L, Hilt, R B, Shireman, A J, Espinosa, P W, Chun   +4 more
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Inclusion tuning of nonlinear optical materials: switching the SHG of p-nitroaniline and 2-methyl-p-nitroaniline with molecular sieve hosts

Journal of the American Chemical Society, 1988
Abstract : A study of the relative intensities of second harmonic generation (SHG) in sorbate complexes of p-nitroaniline (NA) and 2-methyl-p-nitroaniline (MNA) in molecular sieve hosts is presented. An SHG signal ten times larger than that of any previously reported organic or organometallic inclusion complex is observed. NA in ALPO-5 complexes have a
S. D. Cox, T. E. Gier, G. D. Stucky, J. Bierlein   +3 more
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