Results 281 to 290 of about 255,891 (299)

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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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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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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High Breakdown Point and High Efficiency

1997
While it is known that for robustness concepts based on the influence function (or on shrinking contamination neighbourhoods) high robustness and high efficiency can be combined by constrained problems (see in particular Hampel et al. (1986) and Chapter 7) there exists a recent discussion whether there is a conflict between efficiency and high ...
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The Breakdown Points of the Mean Combined With Some Rejection Rules

Technometrics, 1985
In the past, methods for rejection of outliers have been investigated mostly without regard to the quantitative consequences for subsequent estimation or testing procedures. Moreover, although rejection of outliers with subsequent application of least squares methods is one of the oldest and most widespread classes of robust procedures, until recently ...
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High Breakdown Point Estimators in Logistic Regression

1996
Estimators with high finite sample breakdown points are of special interest in robust statistics. However, in contrast to estimation in linear regression models the breakdown point approach have not yet received much attention in logistic regression models.
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Point defect model for passivity breakdown on hyper-duplex stainless steel 2707 in solutions containing bromide at different temperatures

Corrosion Science, 2022
Haibing Zheng, Yangting Sun, Digby Macdonald   +2 more
exaly  

Bounded Influence and High Breakdown Point Testing Procedures in Linear Models

Journal of the American Statistical Association, 1994
Marianthi Markatou, Xuming He
exaly   +2 more sources