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pro vyhledávání: '"Childs, S. J."'
Autor:
Childs, S. J.
The SARS-CoV-2 pandemic peaked very early in comparison to the thresholds predicted by an analysis of prior lockdown regimes. The most convenient explanation is that some, external factor changed the value of the basic reproduction number, $r_{\rm 0}
Externí odkaz:
http://arxiv.org/abs/2008.13521
Autor:
Childs, S. J.
Publikováno v:
Acta Tropica, 125: 202-213, 2013
A set of discrete formulae that calculates the hypothetical impact of aerial spraying on a tsetse population is derived and the work is thought to be novel. Both the original population and the subsequent generations which survive the aerial spraying
Externí odkaz:
http://arxiv.org/abs/1406.4474
This research implements a design for the control of a rotatable stabiliser which, it is proposed, might augment, or fully replace, the conventional control mechanisms for pitch and yaw in certain types of aircraft. The anticipated advantages of such
Externí odkaz:
http://arxiv.org/abs/1406.3129
Autor:
Childs, S. J.
Publikováno v:
Mathematical Biosciences, 262: 214-229, 2015
The temporal aspect of a model of pupal dehydration is improved upon. The observed dependence of pupal transpiration on time is attributed to an alternation between two, essential modes, for which the deposition of a thin, pupal skin inside the pupar
Externí odkaz:
http://arxiv.org/abs/1308.2277
Autor:
Childs, S. J.
Publikováno v:
Acta Tropica, 131: 79-91, 2014
The results of a long-established investigation into teneral transpiration are used as a rudimentary data set. These data are not complete in that all are at 25 $^\circ\mathrm{C}$ and the temperature-dependence cannot, therefore be resolved. An allow
Externí odkaz:
http://arxiv.org/abs/1308.2278
Autor:
Childs, S. J.
Publikováno v:
Mathematical Biosciences, 227: 29--43, 2010
An equation, strongly reminiscent of Fisher's equation, is used to model the response of tsetse populations to proposed control measures in the vicinity of a game reserve. The model assumes movement is by diffusion and that growth is logistic. This l
Externí odkaz:
http://arxiv.org/abs/0910.2783
Autor:
Childs, S. J.
Publikováno v:
Acta Tropica, 117: 171-182, 2011
The hypothetical impact of aerial spraying on tsetse fly populations is investigated. Spray cycles are scheduled at intervals two days short of the first interlarval period and halted once the last of the female flies that originated from pre-spray-d
Externí odkaz:
http://arxiv.org/abs/0902.1616
Autor:
Childs, S. J.
Publikováno v:
Mathematical Biosciences, 221: 77--90, 2009
The results of a long-established investigation into pupal transpiration are used as a rudimentary data set. These data are then generalised to all temperatures and humidities by invoking the property of multiplicative separability, as well as by con
Externí odkaz:
http://arxiv.org/abs/0901.2470
Autor:
Childs, S. J., Gonsalves, J. W.
An algorithm to compute forces at the sea bed from a finite element solution to the mild slope wave equation is devised in this work. The algorithm is best considered as consisting of two logical parts: The first is concerned with the computation of
Externí odkaz:
http://arxiv.org/abs/physics/0105023
Autor:
Childs, S. J., Shillington, F. A.
Examples of heavy mineral placer deposits are presented in which wave reflection, refraction, diffraction and resonance would appear to have played a major concentrating role. Their geometry is compared with the computer generated patterns predicted
Externí odkaz:
http://arxiv.org/abs/physics/9909023