Results 271 to 280 of about 1,283,135 (288)

Plasma expansion in the preshock region

Journal of Applied Physics, 2001
The supersonic expansion of an underexpanding argon plasma from a high density arc source with small dimensions into a low-pressure vessel with large dimensions is studied by an extended one-dimensional nonlocal thermal equilibrium fluid model, called SPIRIT.
Burm, K.T.A.L., Goedheer, W.J., Schram, D.C.   +2 more
openaire   +1 more source

A new region expansion for quadtrees

IEEE Transactions on Pattern Analysis and Machine Intelligence, 1990
A one-pass algorithm that performs region expansion in images represented by quadtrees is presented. The algorithm changes to black those white pixels within a specified distance of any black mode in the image. The algorithm yields a significant improvement over previous approaches by reducing both the number of black nodes that must be considered for ...
C.-H. Ang, H. Samet, C.A. Shaffer
openaire   +1 more source

Detection of expansion regions in Portuguese bipolar families

American Journal of Medical Genetics, 2000
We have studied 24 families with multiple affected members with bipolar disorder to test the hypothesis that in those families clinically showing genetic anticipation [Macedo et al., 1999] we would find large repeat expansions. The families meeting inclusion criteria had a minimum of two affected members over two generations and showed marked ...
C N, Pato, A, Macedo, A, Ambrosio, J B, Vincent, A, Bauer, K, Schindler, J, Xu, I, Coelho, A, Dourado, J, Valente, M H, Azevedo, J L, Kennedy, M T, Pato   +12 more
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Confidence Regions Based on Edgeworth Expansion

Communications in Statistics - Simulation and Computation, 2009
We describe a procedure for constructing accurate confidence regions by first expanding the sampling distribution of parameter estimators in an Edgeworth series, then eliminating the beyond-normal terms by a simple polynomial transformation. We demonstrate this using the two-parameter Cauchy and Weibull distributions.
openaire   +1 more source

Plasma Expansion Waves In The Pre‐shock Region

Annals of the New York Academy of Sciences, 1999
The object of this paper is the study of a cylinder symmetric plasma expansion from a high density source with small dimensions into a low pressure vessel with large dimensions. The gas dynamic theory of Prandtl-Meyer flows is used as a guide to get a better understanding of the flow behavior of the expanding plasma. In gas dynamics, the expansion from
Burm, K.T.A.L., Schram, D.C., Goedheer, W.J., Fauchais, P., VanDerMullen, J., Heberlein, J.   +5 more
openaire   +1 more source

Asteroid Dark-Region Expansion Optimization

Dark regions with uneven temperatures exist on asteroid surfaces, and these regions expand with rotation, illumination, and surface thermodynamic properties. This paper proposes an optimization algorithm inspired by the expansion of asteroid dark regions.
openaire   +1 more source

Andean crime expansion poses regional challenge

Emerald Expert Briefings
Significance The crisis of insecurity in Ecuador, in particular, has raised concerns in neighbouring countries about the activities of drug trafficking mafias as well as other forms of illegal cross-border activity. The porous nature of frontiers in the region makes for serious problems of control.
openaire   +1 more source

Affine estimation via region expansion

2014 IEEE Workshop on Statistical Signal Processing (SSP), 2014
Erez Farhan, Rami Hagege
openaire   +1 more source

LAMINAR HYPERSONIC TRAIL IN THE EXPANSION-CONDUCTION REGION

AIAA Journal, 1963
The usual procedure in calculating the cooling process in a wake behind a blunt object is to assume a region of pure expansion up to a distance where the pressure has reached its ambient value, followed by a region where the mechanism of pure heat conduction is operative.
openaire   +2 more sources

Eac Nutrition: Regional Expansion Strategy

SSRN Electronic Journal, 2008
Petra Christmann, Michele Tan
openaire   +1 more source