نتایج جستجو برای: phase separation

تعداد نتایج: 703822  

2008
Keisuke Toyama Andrew Nesbit Maria G. Jafari Mark D. Plumbley

This paper describes a method for solving the permutation problem in blind source separation (BSS) by frequencydomain independent component analysis (FD-ICA). FD-ICA is a well-known method for BSS of convolutive mixtures. However, FD-ICA has a source permutation problem, where estimated source components can become swapped at different frequencies. Many researchers have suggested methods to sol...

Journal: :Organic & biomolecular chemistry 2006
Simon J Webb Kevin Greenaway Marzieh Bayati Laurent Trembleau

To probe the effect of lipid fluorination on the formation of lipid domains in phospholipid bilayers, several new fluorinated and non-fluorinated synthetic lipids were synthesised, and the extent of phase separation of these lipids from phospholipid bilayers of different compositions was determined. At membrane concentrations as low as 1% mol/mol, both fluorinated and non-fluorinated lipids wer...

1998
Carine Simon Guy D'Urso Christophe Vignat Philippe Loubaton

In this paper, we consider the problem of blind separation of causal minimum phase convolutive mixtures of two sources. We study in detail the so-called decorrelation approach. It consists in finding a causal minimum phase filter which, driven by the observations, produces decorrelated outputs. It is well established that this approach allows to separate the sources if the mixing filter is a no...

2009
Miguel S. B. Almeida Ricardo Vigário

We present a two-stage algorithm to perform blind source separation of sources organized in subspaces, where sources in different subspaces have zero phase synchrony and sources in the same subspace have full phase synchrony. Typical techniques such as ICA algorithms are not adequate for such signals, because phase-locked signals are not independent. We demonstrate the usefulness of this algori...

Journal: :physical chemistry research 0
sina shekarsaraee department of chemistry, faculty of science, guilan university, rasht, iran

the purpose of this reaserch is to measure the phase equilibrium data of the ternary system (water + phosphoric acid + 1-nonanol) at different temperatures. experimental solubility curves and tie-line points for the system were obtained at t = 298.2, 308.2 and 318.2 k and ambient pressure. the binodal curve data were detected by the cloud point method. the mass fractions of each layer were achi...

The purpose of this reaserch is to measure the phase equilibrium data of the ternary system (water + phosphoric acid + 1-nonanol) at different temperatures. Experimental solubility curves and tie-line points for the system were obtained at T = 298.2, 308.2 and 318.2 K and ambient pressure. The binodal curve data were detected by the cloud point method. The mass fractions of each layer ...

2000
E. L. Nagaev

The possibility of the slab or stripe phase separation (alternating ferromagnetic highly-conductive and insulating antiferromagnetic layers) is proved for isotropic degenerate antiferromagnetic semiconductors. This type of phase separation competes with the droplet phase separation (ferromagnetic droplets in the antiferromagnetic host or vice versa). The interaction of electrons with optical ph...

2001
Heinz Mathis

Vestigial sideband modulation is the modulation scheme of choice for the American standard for high-definition television (HDTV). The symbol-error rate of this modulation format is highly dependent on the carrier phase estimation. Although a PLL tracks both carrier frequency as well as carrier phase in such a system, the residual phase noise needs further suppression. Phase synchronizers can ei...

In this research, Effect of thermal treatment on beneficiation of low-grade laterite nickel by calcination-magnetic separation method was studied. In order to determine the components and elements of the sample, to recognize the main and minor minerals and their bond, and phase transformation caused by thermal treatment, Chemical analysis (XRF and ICP), microscopic studies and XRD analysis ...

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