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The American Miniature Nuclear Generator, Snap III (1959)

EASTWOOD, W. S. ; MULLETT, L. B. ; PUTMAN, J. L.

[s.l.] : Nature Publishing Group

Nature 183 (1959), S. 643-644

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Snap III, standing for System for Nuclear ^j Auxiliary Power, is a miniature device capable of powering the telemetering apparatus in a space rocket. Its source of power comes from the decay energy generated by a source of radioactive polonium-210. The energy is converted directly to electric ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/183643a0

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‘Ring Angels’ over South-East England (1959)

EASTWOOD, E. ; BELL, J. D. ; PHELP, N. R.

[s.l.] : Nature Publishing Group

Nature 183 (1959), S. 1759-1760

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Fig. 1. Hing angel of February 17, 1959 In the course of the present work we have observed sixteen such incidents, and the geographical distribution of the active centres is shown on Fig. 2. The ring angels tend to occur around certain active regions which have been marked upon the map as small ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/1831759a0

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Adaptive Rules for Seminonparametric Estimators That Achieve Asymptotic Normality (1991)

Eastwood, Brian J. ; Gallant, A. Ronald

New York : Cambridge University Press

Econometric theory 7 (1991), S. 307-340

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ISSN: 0266-4666

Quelle: Cambridge Journals Digital Archives

Thema: Wirtschaftswissenschaften

Notizen: In econometrics, seminonparametric (SNP) estimators originated in the consumer demand literature. The Fourier flexible form is a well-known example. The idea is to replace the consumer's indirect utility function with a truncated series expansion and then use a parametric procedure, such as nonlinear multivariate regression, to set a confidence interval on an elasticity. More recently, SNP estimators have been used in nonlinear time series analysis. A truncated Hermite expansion with an ARCH leading term is used as the conditional density of the process. The method of maximum likelihood is used to fit it to data.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1017/S0266466600004497

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