Výsledky vyhledávání - "J. M. T. Thompson"

Elektronická kniha

Visions of the Future: Chemistry and Life Science

Autor: J. M. T. Thompson

Leading young scientists, many holding prestigious Royal Society Research Fellowships, describe their research and give their visions of the future. Re-written in a popular and well illustrated style, the articles are derived from scholarly and autho

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A graphical criterion for the instability of elastic equilibria under multiple loads: with applications to drill-strings

Autor: G. H. M. van der Heijden, J. M. T. Thompson

Publikováno v: International Journal of Mechanical Sciences. 68:160-170

We present a new instability theorem which yields stability predictions for any multi-degree-of-freedom elastic system subjected to two or more loads. Predictions are based solely on the form of the equilibrium surfaces in the space of loads and thei

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b9a4afd857738b8d118b39bd35af2e3c
https://doi.org/10.1016/j.ijmecsci.2013.01.010

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Helical post-buckling of a rod in a cylinder: with applications to drill-strings

Autor: Marcos Silveira, Marian Wiercigroch, J. M. T. Thompson, G. H. M. van der Heijden

Publikováno v: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 468:1591-1614

The helical buckling and post-buckling of an elastic rod within a cylindrical casing arises in many disciplines, but is particularly important in the petroleum industry. Here, a drill-string, subjected to an end twisting moment combined with axial te

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c18f87e7e14e5832c8d674039e26e2c1
https://doi.org/10.1098/rspa.2011.0558

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Entropy versus tether strain effects on rates of intramolecular 1,3-dipolar cycloadditions of N-alkenylnitrones

Autor: Elizabeth H. Krenske, Kendall N. Houk, Andrew B. Holmes, J. M. T. Thompson

Publikováno v: Tetrahedron Letters. 52:2181-2184

Intramolecular 1,3-dipolar cycloadditions of two N-alkenylnitrones are studied by means of density functional theory calculations. Cycloaddition of an acyclic 4-hexenylnitrone led to the expected isoxazolidine in 46% yield, but a 4-cycloheptenylnitro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::752afc6f5cfa0a9c3692e414c7041e14
https://doi.org/10.1016/j.tetlet.2010.11.121

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Dynamics of the nearly parametric pendulum

Autor: Bryan Horton, Marian Wiercigroch, J. M. T. Thompson, Jan Sieber

Publikováno v: Horton, B, Sieber, J, Thompson, J & Wiercigroch, M 2011, ' Dynamics of the nearly parametric pendulum ', International Journal of Non-Linear Mechanics, vol. 46, no. 2, pp. 436-442 . https://doi.org/10.1016/j.ijnonlinmec.2010.11.003

Dynamically stable periodic rotations of a driven pendulum provide a unique mechanism for generating a uniform rotation from bounded excitations. This paper studies the effects of a small ellipticity of the driving, perturbing the classical parametri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da4001196e02b2d4c14ff40fa21fba81
https://doi.org/10.1016/j.ijnonlinmec.2010.11.003

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Applications of Bifurcation: Nonautonomous Periodically-Excited Systems

Autor: J. M. T. Thompson, Lawrence N. Virgin

Publikováno v: International Journal of Bifurcation and Chaos. 28:1830035

This paper reviews some examples of bifurcation in low-order, periodically driven dynamical systems. The generic loss of stability is a key component in dynamical systems theory, and provides a central pillar in assessing qualitative changes in syste

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3073c95615ed6a415031be9cb64c4516
https://doi.org/10.1142/s0218127418300355

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Cutting DNA: Mechanics of the topoisomerase

Autor: J. M. T. Thompson

Publikováno v: The European Physical Journal Special Topics. 165:175-182

Taking the accurate theoretical solutions of Coleman and Swigon for a DNA plasmid in a plectonemic state under imposed link and responsive writhe, we examine in detail the working of the two types of cutting enzyme (topoisomerase Type 1 and topoisome

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca378ae4f79ffe568b22683a58e6b0df
https://doi.org/10.1140/epjst/e2008-00861-1

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Experiments on snap buckling, hysteresis and loop formation in twisted rods

Autor: Sébastien Neukirch, G. H. M. van der Heijden, J. M. T. Thompson, V.G.A. Goss

Publikováno v: Experimental Mechanics. 45:101-111

We give the results of large deflection experiments involving the bending and twisting of 1 mm diameter nickel-titanium alloy rods, up to 2 m in length. These results are compared to calculations based on the Cosserat theory of rods. We present detai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dcf9eada504a670aaa36810a003ae2a9
https://doi.org/10.1007/bf02428182

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A Variational Approach to Loaded Ply Structures

Autor: Sébastien Neukirch, J. M. T. Thompson, G. H. M. van der Heijden

Publikováno v: Journal of Vibration and Control. 9:175-185

We show how an energy analysis can be used to derive the equilibrium equations and boundary conditions for an end-loaded variable ply much more efficiently than in previous works. Numerical results are then presented for a clamped balanced ply approa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02b6df8d431e731e12ceb342763f3adf
https://doi.org/10.1177/1077546303009001746

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