Search Results - (Author, Cooperation:P. Hirst)
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1Latest Papers from Table of Contents or Articles in PressD. J. Mortlock ; S. J. Warren ; B. P. Venemans ; M. Patel ; P. C. Hewett ; R. G. McMahon ; C. Simpson ; T. Theuns ; E. A. Gonzales-Solares ; A. Adamson ; S. Dye ; N. C. Hambly ; P. Hirst ; M. J. Irwin ; E. Kuiper ; A. Lawrence ; H. J. Rottgering
Nature Publishing Group (NPG)
Published 2011Staff ViewPublication Date: 2011-07-02Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
2Articles: DFG German National LicensesSilver, J. D. ; Varney, A. J. ; Margolis, H. S. ; Baird, P. E. G. ; Grant, I. P. ; Groves, P. D. ; Hallett, W. A. ; Handford, A. T. ; Hirst, P. J. ; Holmes, A. R. ; Howie, D. J. H. ; Hunt, R. A. ; Nobbs, K. A. ; Roberts, M. ; Studholme, W. ; Wark, J. S. ; Williams, M. T. ; Levine, M. A. ; Dietrich, D. D. ; Graham, W. G. ; Williams, I. D. ; O'Neil, R. ; Rose, S. J.
[S.l.] : American Institute of Physics (AIP)
Published 1994Staff ViewISSN: 1089-7623Source: AIP Digital ArchiveTopics: PhysicsElectrical Engineering, Measurement and Control TechnologyNotes: An electron-beam ion trap (EBIT) has just been completed in the Clarendon Laboratory, Oxford. The design is similar to the devices installed at the Lawrence Livermore National Laboratory. It is intended that the Oxford EBIT will be used for x-ray and UV spectroscopy of hydrogenic and helium-like ions, laser resonance spectroscopy of hydrogenic ions and measurements of dielectronic recombination cross sections, in order to test current understanding of simple highly charged ions.Type of Medium: Electronic ResourceURL: -
3Articles: DFG German National LicensesAtkin, I. L. ; Satchell, J. S. ; Hirst, P. J. ; Humphreys, R. G.
Woodbury, NY : American Institute of Physics (AIP)
Published 2000Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: We present error rate simulations for a single flux quantum logic circuit which include statistical variations in the circuit parameters. We find that the fabrication yield, junction critical margins, and bit error probabilities of the nominal circuit can give a false impression of the performance of practical circuits. For our study circuit, the toggle flipflop, we find that, although the standard figures of merit may vary only marginally with design rules, the average error rate can differ by a factor of 104. Furthermore, for a state-of-the-art technology, the error rates of different realizations of the same design actually span 10 orders of magnitude. These results highlight the inadequacy of current figures of merit to gauge the performance of high temperature superconductor designs. © 2000 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesStaff View
ISSN: 0016-7185Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: GeographyType of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesStaff View
ISSN: 0191-6599Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: HistoryPolitical ScienceType of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 0035-2969Topics: SociologyNotes: BIBLIOGRAPHIE DURKHEIMIENNEURL: -
7Articles: DFG German National LicensesStaff View
ISSN: 1741-2765Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: Abstract An experimental investigation into the effects of subbuckling low-frequency cyclic hysteresis upon a range of imperfection-sensitive circular hollow section struts has involved a novel application of the Southwell and Lundquist semi-empirical plot procedures. A static strut testing procedure was modified to provide for the inclusion of cyclic action phases, these cyclic excursions possessing amplitudes that constrained behavior to the subbuckling compression regime throughout. Cyclic action was introduced at some prescribed static axial compression, buckling being statically induced upon completion of the cyclic action phase. For each strut test, appropriate semi-empirical plots were determined, where possible, for both pre- and post-cyclic action phase static data sets, each successful plot thereby consisting of a respective pair of linear loci. It is deemed that such bilinear loci be parallel, indicating no change in boundary conditions or effective length, but offset, indicating cyclic hysteresis amplification of any initial strut imperfection. This bilinear technique is shown to be particularly useful in assessing quality of experimentation and in providing imperfection data applicable to the analysis of nominally static struts suffering subbuckling cyclic action. Design implications are briefly identified for completeness. Serviceability considerations are shown to be the dominant issue.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 0030-493XKeywords: Chemistry ; Analytical Chemistry and SpectroscopySource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyNotes: The fragmentation of some azoacylals showed a 3,3,1 bicyclic rearrangement which could be demonstrated by a deuterium labelling study.Type of Medium: Electronic ResourceURL: