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Genesis of two-dimensional patterns in cross-gradient fields
Physical Review E, 2011Tissue morphogenesis is controlled by the two-dimensional patterning of gene expression in epithelial layers, that determines cell fates. The mechanisms of pattern formation involve intracellular regulatory networks controlled by paracrine and autocrine signaling.
L M, Pismen, D S A, Simakov
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Sequential joint inversion of gravity and magnetic data via the cross‐gradient constraint
Geophysical Prospecting, 2021ABSTRACTDifferent geophysical methods use different model parameterizations and inversion algorithms. Thus, combining these different inversion systems and yet adding the nonlinear cross‐gradient constraint in a joint inversion framework might be a big challenge, for instance, as explained further by Moorkamp et al.
Tavakoli M. +4 more
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Improvements to elastic full waveform inversion using cross-gradient constraints
SEG Technical Program Expanded Abstracts 2016, 2016Seismic full-waveform inversion (FWI) is potentially a powerful method for obtaining high-resolution subsurface images, but the results are often distorted by nonlinear effects and parameter trade-offs. Such distortions can be particularly severe in the case of multiparameter FWI, such as elastic FWI, in which inversion is performed simultaneously for
Edgar Manukyan +2 more
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Gravity-magnetic cross-gradient joint inversion by the cyclic gradient method
Optimization Methods and Software, 2020In this paper, we consider a joint-inversion problem using different types of geophysical data: gravity and magnetism.
Cong Sun, Yanfei Wang
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Photodetachment of H− ion in crossed gradient electric and magnetic fields
Pramana, 2016We study the photodetachment of H − ion in crossed gradient electric and magnetic fields and put forward an analytical formula for calculating the photodetachment cross-section. Compared to the photodetachment of H − ion in a gradient electric field, the Hamiltonian of the detached electron has three degrees of freedom, which makes the dynamical ...
DEHUA WANG, SHAOHAO CHENG
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2021 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2021
Electrical Impedance Tomography (EIT) is a kind of non-invasive technique for reconstructing the conductivity distribution in the observation domain. The main reason that restricts the development of EIT technology is the low spatial resolution of reconstruction caused by the ill-posed inverse problem.
Yu Wang, Feng Dong, Shangjie Ren
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Electrical Impedance Tomography (EIT) is a kind of non-invasive technique for reconstructing the conductivity distribution in the observation domain. The main reason that restricts the development of EIT technology is the low spatial resolution of reconstruction caused by the ill-posed inverse problem.
Yu Wang, Feng Dong, Shangjie Ren
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Capillary assembly of cross-gradient particle arrays using a microfluidic chip
Microelectronic Engineering, 2015Display Omitted Cross-gradient particle arrays (CGPA) were produced by capillary assembly.Arrays have a gradual change of composition but a constant particle density.Use of microfluidic chips enabled tuning of the gradient steepness and composition in situ.
Songbo Ni +3 more
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ELECTROPHORESIS, 1992
AbstractThe presence of soluble dextrans, methylcellulose and polyethylene glycol polymers incorporated into vertical sodium dodecyl sulfate (SDS)‐polyacrylamide slabs during electrophoresis can have a pronounced effect on protein separations. The effects of various standard and inverse gradients of polymers on the electrophoretic mobility of marker ...
D M, Gersten, K E, Bijwaard
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AbstractThe presence of soluble dextrans, methylcellulose and polyethylene glycol polymers incorporated into vertical sodium dodecyl sulfate (SDS)‐polyacrylamide slabs during electrophoresis can have a pronounced effect on protein separations. The effects of various standard and inverse gradients of polymers on the electrophoretic mobility of marker ...
D M, Gersten, K E, Bijwaard
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Solute reaction mediated precipitate patterns in cross gradient free systems
Zeitschrift f�r Physik B Condensed Matter, 1982Recent studies on the spontaneous formation of undulatory patterns of precipitate concentration, such as Liesegang and related phenomena, have shown that these effects can be explained on the basis of a competitive particle growth mechanism as underlies Ostwald ripening.
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The cultivation of Phaeodactylum tricornutum in crossed gradients of temperature and light
Algological Studies/Archiv für Hydrobiologie, Supplement Volumes, 2003Phaeodactylum tricornutum BOHLIN, is one of the most important species in the algal biotests. The cultivation of this species in the crossed gradients evaluated the dependence of the growth rates and morphology on particular combinations of environmental factors (temperature, light).
Jana Kvíderová, Jaromír Lukavský
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