180,007 research outputs found

    Hanson and Batchelor 2020 Cell Reports

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    Single cell fluorescence microscopy data for Hanson R and Batchelor E, "Rucaparib treatment alters p53 oscillations in single cells to enhance DNA double strand break-induced cell cycle arrest." (2020) Cell Reports. Data description is provided in "Data and Code Availability" of the STAR Methods

    Kraichnan-Leith-Batchelor similarity theory and two-dimensional inverse cascades

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    We study the scaling properties and Kraichnan-Leith-Batchelor (KLB) theory of forced inverse cascades in generalized two-dimensional (2D) fluids (α\alpha-turbulence models) simulated at resolution 819228192^2. We consider α=1\alpha=1 (surface quasigeostrophic flow), α=2\alpha=2 (2D vorticity dynamics) and α=3\alpha=3. The forcing scale is well-resolved, a direct cascade is present and there is no large-scale dissipation. Coherent vortices spanning a range of sizes, most larger than the forcing scale, are present for both α=1\alpha=1 and α=2\alpha=2. The active scalar field for α=3\alpha=3 contains comparatively few and small vortices. The energy spectral slopes in the inverse cascade are steeper than the KLB prediction (7α)/3-(7-\alpha)/3 in all three systems. Since we stop the simulations well before the cascades have reached the domain scale, vortex formation and spectral steepening are not due to condensation effects; nor are they caused by large-scale dissipation, which is absent. One- and two-point pdfs, hyperflatness factors and structure functions indicate that the inverse cascades are intermittent and non-Gaussian over much of the inertial range for α=1\alpha=1 and α=2\alpha=2, while the α=3\alpha=3 inverse cascade is much closer to Gaussian and non-intermittent. For α=3\alpha=3 the steep spectrum is close to that associated with enstrophy equipartition. Continuous wavelet analysis shows approximate KLB scaling E(k)k2\mathcal{E}(k) \propto k^{-2} (α=1\alpha=1) and E(k)k5/3\mathcal{E}(k) \propto k^{-5/3} (α=2\alpha=2) in the interstitial regions between the coherent vortices. Our results demonstrate that coherent vortex formation (α=1\alpha=1 and α=2\alpha=2) and non-realizability (α=3\alpha=3) cause 2D inverse cascades to deviate from the KLB predictions, but that the flow between the vortices exhibits KLB scaling and non-intermittent statistics for α=1\alpha=1 and α=2\alpha=2. The results will appear in \cite{BurgessEA2015}, which has been accepted to the \emph{Journal of Fluid Mechanics}

    R. E. Batchelor: Unamuno Novelist. A European Perspective

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    [ES] Reseña del libro de R.E. Batchelor "Unamuno Novelist".[EN] Review of the book R.E. Batchelor "Unamuno Novelist.

    R. N. Ironside and I. R. C. Batchelor, Aviation neuro-psychiatry

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    Nuttin J. R. N. Ironside and I. R. C. Batchelor, Aviation neuro-psychiatry. In: Revue Philosophique de Louvain. Troisième série, tome 44, n°1, 1946. p. 180

    R. N. Ironside and I. R. C. Batchelor, Aviation neuro-psychiatry

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    Nuttin J. R. N. Ironside and I. R. C. Batchelor, Aviation neuro-psychiatry. In: Revue Philosophique de Louvain. Troisième série, tome 44, n°1, 1946. p. 180

    R. L. Gordon and Ron S. Jordan

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    "No 485 Sqn Ldr R. L. Gordon D.F.C. & Ba[r]. "Butch" From 22nd July 1943 Killed at Batchelor 27th Feb 1944 No 421681 Flying Officer Ron. S. Jordan AM DFM Served in 31 Beaufighter Squadron Coomalie Creek, Darwin From 22-7-43 To 1-5-44. [Signature] Ron S. Jordan."Number 485 Squadron Leader R. L. Gordon, Distinguished Flying Cross & Ba[r], "Butch". From 22nd July 1943. Killed at Batchelor 27th February 1944. Number 421681 Flying Officer Ron S. Jordan, Member of the Order of Australia, Distinguished Flying Medal. Served in 31 Beaufighter Squadron, Coomalie Creek, Darwin. From 22-7-43 To 1-5-44. [Signature] Ron S. Jordan

    Dr M T Batchelor, Physics

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    L to R: Dr B I Henry and Dr M T Batchelor, Physics awarded first prize from British Institute of Physics in 1990, Beauty of Physics exhibitio

    R. A. Lee

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    "L.A.C. R.A. Lee 48869 12 Squadron R.A.A.F. Batchelor. 1942."Leading Aircraftman R.A. Lee 48869. 12 Squadron Royal Australian Air Force. Batchelor. 1942

    Conversation with Professor George K Batchelor

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    On October 26, 1994, Professor George K. Batchelor, F.R.S., of Cambridge University delivered the Yunchuan Aisinjioro-Soo Distinguished Lecture, 'Living with Research', at the Beckman Institute on the campus of the University of Illinois. The following day, October 27, Professor Batchelor visited with various groups on campus. During the morning of that day he spent an hour or so in an open conversation and exchange with faculty and students of the TAM Department. Some highlights of this interesting exchange are transcribed below from a videotape of the occasion. We felt that the exchanges and the many historical remarks, primarily regarding G. I. Taylor, might be of interest to a broader audience, and this provided the motivation for producing a TAM Report available for general circulation.Made available in DSpace on 2021-11-04T16:28:45Z (GMT). No. of bitstreams: 2 TAM783-UILU-ENG-95-6005.pdf: 4649245 bytes, checksum: 0f3012d0f5aa0cd456c0742e6d13d52d (MD5) license.txt: 4802 bytes, checksum: 58353f9dd6876860dd5221f3d7872a95 (MD5) Previous issue date: 1995-0
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