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  • 1
    Electronic Resource
    Electronic Resource
    Negative ion sources for high energy accelerators (invited) : The 8th international conference on ion sources (2000)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 71 (2000), S. 1069-1074 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Due to the development of reliable H− ion sources, charge-exchange injection into circular accelerators has become routine. For preacceleration of heavy ions tandem generators with a stripping foil are used in order to double the energy with the same high voltage. This article reviews recent developments in negative hydrogen ion sources. The underlying physics, operating parameters, and beam characteristics of selected sources will be described and compared. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1150388
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  • 2
    Electronic Resource
    Electronic Resource
    The plasma–vacuum transition in rf sources for negative hydrogen ions : Papers from the Ninth International Conference on Ion Sources (2002)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 73 (2002), S. 900-902 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: An intensive study has been made at DESY of the transition region between the plasma and vacuum, the so-called sheath, of rf sources for negative hydrogen ions. The plasma and sheath have been analyzed with Langmuir probes even at extraction at 35 kV, with different geometric arrangements utilizing specially designed collars. Langmuir probes were installed in one of the collars. The use of a long ceramic insulated Langmuir probe made a three-dimensional analysis possible. The density, temperature, and potential of the plasma have been calculated based on these data. These studies have resulted in a better understanding of the transition region of not just rf sources but also of magnetron and Penning sources. Studies with a nine-ring collar made it possible to develop a design with a new method to dump the electrons and deliver an increased negative hydrogen current. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1427670
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  • 3
    Electronic Resource
    Electronic Resource
    Spinal anaesthesia despite combined clopidogrel and aspirin therapy in a patient awaiting lung transplantation: effects of platelet transfusion on clotting tests (2005)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 60 (2005), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The risk of central neuraxial blockade in patients treated with newer antiplatelet drugs is unclear. We report the case of a woman awaiting lung transplantation who presented for emergency groin surgery. She had recently undergone a coronary artery stent implantation and was treated with both clopidogrel and aspirin. Despite this dual antiplatelet therapy, uneventful spinal anaesthesia was administered following platelet transfusion. While thromboelastography was of no help in assessing the degree of anticoagulation, the effects of platelet transfusion were reflected by adenosine diphosphate and epinephrine aggregometry. Thus, in selected patients, platelet transfusion may be appropriate to enable central neuraxial blockade when deemed necessary.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.2004.04029.x
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  • 4
    Electronic Resource
    Electronic Resource
    Rough Neural Computing in Signal Analysis (2001)
    Boston, USA and Oxford, UK : Blackwell Publishers Inc
    Computational intelligence 17 (2001), S. 0 
    Details
    ISSN: 1467-8640
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Computer Science
    Notes: This paper introduces an application of a particular form of rough neural computing in signal analysis. The form of rough neural network used in this study is based on rough sets, rough membership functions, and decision rules. Two forms of neurons are found in such a network: rough membership function neurons and decider neurons. Each rough membership function neuron constructs upper and lower approximation equivalence classes in response to input signals as an aid to classifying inputs. In this paper, the output of a rough membership function neuron results from the computation performed by a rough membership function in determining degree of overlap between an upper approximation set representing approximate knowledge about inputs and a set of measurements representing certain knowledge about a particular class of objects. Decider neurons implement granules derived from decision rules extracted from data sets using rough set theory. A decider neuron instantiates approximate reasoning in assessing rough membership function values gleaned from input data. An introduction to the basic concepts underlying rough membership neural networks is briefly given. An application of rough neural computing in classifying the power system faults is considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/0824-7935.00160
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  • 5
    Electronic Resource
    Electronic Resource
    Provision for children with developmental co-ordination disorder (DCD): audit of the service provider (2004)
    Oxford, UK : Blackwell Science Ltd
    Child 30 (2004), S. 0 
    Details
    ISSN: 1365-2214
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Background  The aim of this study was to conduct an audit of parent/carer satisfaction with the service provided for children presenting with movement difficulties [developmental co-ordination disorder (DCD)/dyspraxia] at the out-patient physiotherapy clinic of a specialist tertiary referral paediatric hospital.Method  A postal questionnaire was used to obtain objective and subjective data on the service offered. Factual information on aspects such as waiting time for first appointment, type of intervention offered, etc. was checked against clinical records. Satisfaction with the service was assessed using ratings and open-ended comment.Results  Forty-five families completed the questionnaire. The results showed that the service was generally rated highly. The opportunity to discuss the child's problems and its implications was considered valuable. Among families offered 1 : 1 intervention, a statistically significant correlation emerged between the number of sessions attended and perceived effectiveness. Among families offered a home programme, perceived effectiveness was related to the number of times per week the child practised the programme.Conclusions  This study showed that many children from mainstream schools with co-ordination problems continued to find it difficult to obtain a clear diagnosis. Once a referral and assessment had been achieved, however, parents/carers were shown to be satisfied with the package offered by this service provider.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2214.2004.00442.x
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  • 6
    Electronic Resource
    Electronic Resource
    Influence of sharp microstructural gradients on the fatigue crack growth resistance of α+β and near-α titanium alloys (2005)
    PO Box 1354, 9600 Garsington Road, Oxford OX4 2XG, UK. : Blackwell Science Ltd
    Fatigue & fracture of engineering materials & structures 28 (2005), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The present study focuses on the effect of microstructural gradients on the fatigue crack growth resistance of Ti-6Al-4V and Ti-6242 titanium alloys. Sharp microstructural gradients from fine-grained bimodal to coarse-grained lamellar microstructures were obtained by heat treating only a portion of fine-grained plates in the β single-phase field using a high-frequency induction coil. For fatigue crack growth from a bimodal into a lamellar microstructure, it was found that the initial crack extension past the microstructural transition within the lamellar microstructure shows the same crack growth resistance as the reference bimodal microstructure. Similarly, for fatigue crack growth from a lamellar into a bimodal microstructure, the initial crack extension past the microstructural transition within the bimodal microstructure shows same crack growth resistance as the reference lamellar microstructure. Based on detailed crack front profile investigations using optical light and scanning electron microscopy as well as heat tinting procedures, these findings can be mainly attributed to the effect of the crack front geometry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.2005.00932.x
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  • 7
    Electronic Resource
    Electronic Resource
    Spezifisch-Dynamische Wirkung und Dystrophia Adiposo-Genitalis vor und nach Behandlung mit HypophysenprÄparaten (1930)
    Springer
    Journal of molecular medicine 9 (1930), S. 1219-1221 
    Details
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01737652
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  • 8
    Electronic Resource
    Electronic Resource
    Correction for thermal diffuse scattering in single-crystal time-of-flight neutron diffraction: first applications (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 34 (2001), S. 493-495 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: The thermal diffuse scattering (TDS) correction developed by Popa & Willis [Acta Cryst. (1997), A53, 537–545] for single-crystal pulsed neutron diffraction is examined via a series of experimental data sets collected at the spallation neutron source IPNS. The effect on the derived temperature parameter values is assessed and compared with reference structures obtained from gamma-ray diffraction. The importance of carrying out TDS corrections is emphasized. Suggestions are made regarding the method of evaluation of the TDS in situations where the elastic constants are unknown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889801009426
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  • 9
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    Unknown
    "MY SISTER'S SLEEP": ROSSETTI'S MIDNIGHT MASS (1979)
    Morgantown, W.Va. : Periodicals Archive Online (PAO)
    Victorian poetry. 17:3 (1979:Autumn) 265 
    Details
    ISSN: 0042-5206
    Topics: English, American Studies
    Notes: BRIEF ARTICLES AND NOTES
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:d580-1979-017-03-000007
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  • 10
    Electronic Resource
    Electronic Resource
    Allgemeines (1979)
    Springer
    Archives of gynecology and obstetrics 228 (1979), S. 42-48 
    Details
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02427486
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