Zobrazeno 1 - 10
of 118
pro vyhledávání: '"C J Chapman"'
Publikováno v:
Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland.
We look at the effect of introducing FIT in the straight-to-test (STT) two-week pathway for CIBH.FIT in primary care triages 2WW colorectal referrals for patients aged 60 years and above for STT Computed Tomography Colonography (CTC). We compare the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::6e33f0a7fb3a5ec31e29f5c360fa8e54
https://pubmed.ncbi.nlm.nih.gov/36478367
https://pubmed.ncbi.nlm.nih.gov/36478367
Autor:
C. J. Chapman, S. V. Sorokin
Publikováno v:
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 380
A mathematical analysis of wave propagation along an elastic cylindrical tube is presented, with the aim of determining the range of Poisson’s ratio for which backward wave propagation (i.e. at negative group velocity) can occur near the ring frequ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e43fe8f3b7c65c863fcfca57ffca1901
https://doi.org/10.1098/rsta.2021.0386
https://doi.org/10.1098/rsta.2021.0386
Autor:
C. J. Chapman, Sergey Sorokin
Publikováno v:
Chapman, C J & Sorokin, S V 2021, ' A Wronskian method for elastic waves propagating along a tube ', Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 477, no. 2250, 20210202 . https://doi.org/10.1098/rspa.2021.0202
A technique involving the higher Wronskians of a differential equation is presented for analysing the dispersion relation in a class of wave propagation problems. The technique shows that the complicated transcendental-function expressions which occu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86b33d46d7a0fc2a83c81a661c3c8b39
https://eprints.keele.ac.uk/9884/1/21cjc.prsa.annulus.e07.pdf
https://eprints.keele.ac.uk/9884/1/21cjc.prsa.annulus.e07.pdf
Autor:
Christopher Powles, C. J. Chapman
This paper determines the impulsive sound fields produced by sharp-edged gusts striking the leading edge of a supersonic blade or aerofoil, for example in a turbofan aeroengine or a counter-rotating propeller system. A full three-dimensional theory i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7552f161427d48c560a2598b655f0ee
https://eprints.keele.ac.uk/6095/1/19cjp.wm.time.c08.pdf
https://eprints.keele.ac.uk/6095/1/19cjp.wm.time.c08.pdf
Autor:
C. J. Chapman, Christopher Powles
This paper determines the three-dimensional structure of certain single-frequency canonical sound fields occurring in the theory of blade–vortex interaction when the flow velocity relative to the blade is supersonic. A relative velocity of this mag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c519140a4ab58cf4f431e4f255dbb238
https://eprints.keele.ac.uk/5723/1/18cjp.wm.frequency.j18.pdf
https://eprints.keele.ac.uk/5723/1/18cjp.wm.frequency.j18.pdf
Autor:
C. J. Chapman, Henry P. Wynn
Publikováno v:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 477:20200646
This paper derives an explicit formula for a type of fractional power series, known as a Puiseux series, arising in a wide class of applied problems in the physical sciences and engineering. Detailed consideration is given to the gaps which occur in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55c8f6839dbc172c9a27cdeecf0aec14
https://doi.org/10.1098/rspa.2020.0646
https://doi.org/10.1098/rspa.2020.0646
Autor:
C. J. Chapman, Sergey Sorokin
Publikováno v:
Sorokin, S V & Chapman, C J 2018, ' Reduced-order modelling of wave propagation in an elastic layer of constant curvature and thickness ', Journal of Sound and Vibration, vol. 433, pp. 248-264 . https://doi.org/10.1016/j.jsv.2018.07.018
This paper is concerned with reduced-order modelling of wave propagation in an elastic layer of constant curvature and thickness by means of the generalised Galerkin method with Legendre polynomials used as coordinate functions. A new family of polyn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a41d077c85a784022c164d324b53862a
https://vbn.aau.dk/da/publications/9b8f1656-d92d-48ef-ad88-49ee23328f8e
https://vbn.aau.dk/da/publications/9b8f1656-d92d-48ef-ad88-49ee23328f8e
Autor:
C. J. Chapman, Sergey Sorokin
Publikováno v:
Chapman, C J & Sorokin, S V 2017, ' The deferred limit method for long waves in a curved waveguide ', Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 473, no. 2200, 20160900 . https://doi.org/10.1098/rspa.2016.0900
This paper presents a technique, based on a deferred approach to a limit, for analysing the dispersion relation for propagation of long waves in a curved waveguide. The technique involves the concept of an analytically satisfactory pair of Bessel fun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cca196e8541e6b70990ddc4997b33105
https://vbn.aau.dk/da/publications/818bbde9-2a13-4055-93a1-17cdcaac3977
https://vbn.aau.dk/da/publications/818bbde9-2a13-4055-93a1-17cdcaac3977
Autor:
C. J. Chapman, Sergey Sorokin
Publikováno v:
Sorokin, S V & Chapman, C J 2014, ' A hierarchy of high-order theories for symmetric modes in an elastic layer ', Journal of Sound and Vibration, vol. 333, no. 15, pp. 3505-3521 . https://doi.org/10.1016/j.jsv.2014.03.005
A hierarchy of high-order theories for symmetric modes in an infinitely long elastic layer of the constant thickness is derived by means of the inertia-corrected polynomial approximations. For each member of the hierarchy, boundary conditions for lay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::099c9abafbc949de8420237c3e6fdd1f
https://doi.org/10.1016/j.jsv.2014.03.005
https://doi.org/10.1016/j.jsv.2014.03.005
Autor:
C. J. Chapman
Publikováno v:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 468:4008-4023
This paper presents a method of analysing wave-field dispersion relations in which Bessel functions of imaginary order occur. Such dispersion relations arise in applied studies in oceanography and astronomy, for example. The method involves the asymp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::092c76e7bd9cf8dee309bb9e07e2f976
https://doi.org/10.1098/rspa.2012.0459
https://doi.org/10.1098/rspa.2012.0459