Results 221 to 230 of about 4,689,601 (244)

Critical Behavior of Thermal Relaxation near a Breakdown Point

Physical Review Letters, 2003
At a composition far above the percolation threshold, the resistance of a composite sample increases with time due to Joule heating as a constant current of a sufficiently large value is passed through the sample. If the current is less than a certain breakdown current (I(b)) the resistance eventually reaches a steady value with a characteristic ...
C D, Mukherjee, K K, Bardhan
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Optimal breakdown point maximizing designs

Metrika, 1995
Summary: In linear models the breakdown point of an estimator depends strongly on the underlying design. This holds in particular for high breakdown point estimators as the least median of squares estimators or least trimmed squares estimators. It could be shown that the breakdown point is maximized if the number of regressors which lie in a subspace ...
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Spark breakdown in air at a positive point

IEEE Spectrum, 1968
When a voltage across an insulating gas is increased beyond a certain limit, the gas breaks down, becoming a conductor of electricity. A photographic method, the Lichtenberg figure technique, is used to study the process. Above a certain voltage an ionization wave, called a streamer, proceeds from the highly stressed electrode, branching out along the ...
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Point-Contacting by Localized Dielectric Breakdown With Breakdown Fields Described by the Weibull Distribution

IEEE Transactions on Electron Devices, 2015
We report on the point-contacting by localized dielectric breakdown (PLDB) technique applied to form ohmic contacts at room temperature, to silicon test structures with locally doped surface regions and four dielectrics commonly used for surface passivation in silicon solar cells. Our results show that the statistical distribution of the electric field
Ned J. Western, Ivan Perez-Wurfl, Stuart R. Wenham, Stephen P. Bremner   +3 more
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Breakdown points, breakdown probabilities, midpoint sensitivity curves, and optimization of stack filters

Circuits, Systems, and Signal Processing, 1996
The paper is devoted to a recently introduced class of nonlinear digital filters, namely the stack filters which includes rank order filters, standard median filters, some morphological ones, etc. The particularity of such a class lies in the fact that it is related to the statistical properties of the input signal. The exposition is based on three new
Kuosmanen, Pauli, Astola, Jaakko
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Vanishing Point: On the Edge of Critical Breakdown

1993
The profession of literary criticism as it is practised in the universities is in crisis. This is not peculiar to literary criticism, but to all the liberal and human sciences. It has been this way now for many years. Indeed, it may be said that this is now the natural state of the Humanities in the advanced cultures of the West.
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Robustness, breakdown point and influence function

1983
In this section, we shall restate the viewpoint of Hampel (1968 – 1971) in different words. Eventually, at the end of § 3.3, we will be in a position to give a more convenient delimitation for the concept of robustness. In this work, we keep to Hampel’s viewpoints although they are more and more frequently open to fundamental criticisms.
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Finite Sample Breakdown Points of Outlier Detection Procedures

Journal of Surveying Engineering, 1997
The conventional iterative outlier detection procedures (CIODP), such as the Baarda-, Pope-, or t-testing procedure, based on the least-squares estimation (LSE) are used to detect the outliers in geodesy. Since the finite sample breakdown point (FSBP) of LSE is about 1/n, the FSBPs of the CIODP are also expected to be the same, about 1/n. In this paper,
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Robustness Measures: Bias and Breakdown Points

1997
In Chapter 3 robustness properties are derived by regarding the behaviour of estimators and corresponding functionals in infinitesimal neighbourhoods of the ideal distribution Pθδ. NOW, in Section 4.1 we will derive robustness properties of estimators by regarding the behaviour of their corresponding functionals in neighbourhoods which are not ...
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Upper and Lower Bounds for Breakdown Points

2013
General upper and lower bounds for the finite sample breakdown point are presented. The general upper bound is obtained by an approach of Davies and Gather using algebraic groups of transformations. It is shown that the upper bound for the finite sample breakdown point has a simpler form than for the population breakdown point.
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