Výsledky vyhledávání - "H R, van der Vaart"

Application of Competing Risks Theory to the Analysis of Effects of Nosema locustae and N. cuneatum on Development and Mortality of Migratory Locusts

Autor: D. L. Johnson, H. R. van der Vaart, G. B. Schaalje

Publikováno v: Environmental Entomology. 21:939-948

Insect control measures can be effective not only by increasing mortality but also by affecting development and activity. Analysis of the simultaneous effects of a treatment on death times and development times is, however, complicated by difficultie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5d8855ff219193eb0270e0edbb27ce44
https://doi.org/10.1093/ee/21.5.939

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Use of sensitivity analysis to describe an endothermic/exothermic reaction system

Autor: H. R. van der Vaart, D. R. van der Vaart

Publikováno v: AIChE Journal. 38:461-465

We investigate the use of sensitivity analysis to characterize the presence or absence of temperature runaway in the same two-reaction system

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8e847ad13560cda379407f4b0854204f
https://doi.org/10.1002/aic.690380315

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Use of a second endothermic reaction to desensitize a tubular reactor

Autor: H. R. van der Vaart, D. R. van der Vaart

Publikováno v: AIChE Journal. 37:225-232

We investigate the application of three different sensitivity criteria, first to the case of one (exothermic) reaction (methanol dehydration) so that the use of the criteria can be illustrated (and a basis for comparison may be etablished) and second

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7287b6df1c78bc1e4a6f6367972ce13d
https://doi.org/10.1002/aic.690370208

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A note on life tables and nonlinear death processes

Autor: H. R. van der Vaart

Publikováno v: Acta Biotheoretica. 32:3-11

This note is viewing survival data of a natural cohort as being generated by a possibly nonlinear, nonhomogeneous death process. It proves that the usual conditional distributions of the number of survivors at a certain age are binomial if and only i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe471feac523b99925b2f5b43f81138a
https://doi.org/10.1007/bf00047971

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Relationships among recent models for insect population dynamics with variable rates of development

Autor: G. B. Schaalje, H. R. van der Vaart

Publikováno v: Journal of Mathematical Biology. 27:399-428

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::181749c90ab521825a68c7a0d359e920
https://doi.org/10.1007/bf00290637

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Conditions under which a number of sinusoids may be instantaneously in phase (biological applications)

Autor: H R Van Der Vaart, V F Gallucci

Publikováno v: Physics in Medicine and Biology. 21:117-127

The literature on the phase relationships between frequency components of a Fourier analysis is reviewed, with examples and theories from acoustics and neurophysiology. Given n sinusoids of different frequencies and phase angles, it is shown that for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4be8347dfcb3499d9aa9f6526d2fc266
https://doi.org/10.1088/0031-9155/21/1/010

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On Certain Characteristics of the Distribution of the Latent Roots of a Symmetric Random Matrix Under General Conditions

Autor: H. R. van der Vaart

Publikováno v: Ann. Math. Statist. 32, no. 3 (1961), 864-873

1. Summary. Under certain conditions, to be specified in Theorems 2 and 4, the latent roots of the symmetric random matrix F with 8F = : are biased estimators of the latent roots of 1; the smallest (largest) root is negatively (positively) biased. He

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3212402ff8df0beae43053b5b7d3dea
https://doi.org/10.1214/aoms/1177704979

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Weak Sufficient Conditions for Fatou's Lemma and Lebesgue's Dominated Convergence Theorem

Autor: H. R. van der Vaart, Elizabeth Yen

Publikováno v: Mathematics Magazine. 41:109-117

(1968). Weak Sufficient Conditions for Fatou's Lemma and Lebesgue's Dominated Convergence Theorem. Mathematics Magazine: Vol. 41, No. 3, pp. 109-117.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1f1f1619d40c2a657a31757bb286d341
https://doi.org/10.1080/0025570x.1968.11975853

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Classroom Notes

Autor: Elizabeth H. Yen, H. R. van der Vaart, B. L. McAllister, Lee Yong-Jeng, S. W. Reyner, D. B. Goodner, Ladislaus Rédei

Publikováno v: The American Mathematical Monthly. 73:991-1002

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::08e4463702a3518d3d21819475f3442e
https://doi.org/10.1080/00029890.1966.11970875

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A comparative investigation of certain difference equations and related differential equations: Implications for model-building

Autor: H. R. van der Vaart

Publikováno v: Bulletin of Mathematical Biology. 35:195-211

Many mathematical models for physical and biological problems have been and will be built in the form of differential equations or systems of such equations. With the advent of digital computers one has been able to find (approximate) solutions for e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::325beb57c69845a7cde68a2434b1aa3b
https://doi.org/10.1007/bf02558806

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