248,842 research outputs found

    Programma Quo Academiæ Christian-Albertinæ h.t. Prorector Caspar March. D. Med. Pr. Pr. ad Ferias Natalitias Salvatoris Nostri pie ac devote celebrandas, Cives Academicos sedulo seduloq[ue] hortatur

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    PROGRAMMA QUO ACADEMIÆ CHRISTIAN-ALBERTINÆ H.T. PRORECTOR CASPAR MARCH. D. MED. PR. PR. AD FERIAS NATALITIAS SALVATORIS NOSTRI PIE AC DEVOTE CELEBRANDAS, CIVES ACADEMICOS SEDULO SEDULOQ[UE] HORTATUR Programma Quo Academiæ Christian-Albertinæ h.t. Prorector Caspar March. D. Med. Pr. Pr. ad Ferias Natalitias Salvatoris Nostri pie ac devote celebrandas, Cives Academicos sedulo seduloq[ue] hortatur ([1]) Title page ([1]) Prorector Et Senatus Academiæ Kiloniensis Civibus Academicis S. P. D. ([1]

    The application of high temperature superconducting materials to power switches

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    Superconducting switches may nd application in superconducting magnet systems that require energy extraction. Such superconducting switches could be bypass-switches that are operated in conjunction with a parallel resistor or dump-switches where all of the energy is dissipated in the switch itself. Bypass-switches are more suited to higher energy circuits as a portion of the energy can be dissipated in the external dump resistor. Dump-switches require less material and triggering energy as a lower switch resistance is needed to achieve the required total dump resistance.Both superconducting bypass-switches and superconducting dump-switches can be thermally activated. Switching times that are comparable to those obtained with mechanical bypass-switch systems can be achieved using a co-wound heater that is powered by a capacitor discharge. Switches that have fast thermal diffusion times through the insulation can be modelled as a lumped system whereas those with slow thermal diffusion times were modelled with the full heat diffusion equation.Superconducting switches can be formed of either high temperature superconductors (HTS) or low temperature superconductors (LTS). Switches based on HTS materials allow operation at higher temperatures where the cost of cooling is less. Extracting the magnet energy and depositing the heater energy at higher temperatures will also reduce the load on the overall cryogenic system during switching and energy extraction. For magnet circuits that are based on high temperature superconductors the switch must also be formed of HTS material. Due to the approximately T3 dependence of specific heat capacity, switches that operate at higher temperatures have slower heat diffusion times and require higher triggering energies than those operating at low temperature. HTS based dump-switches and HTS based bypass-switches were tested in liquid nitrogen to show that the required switching time could be achieved at these high temperatures.The design and optimisation of superconducting switches that were formed of various superconducting materials were performed for example magnet circuits to provide reference designs of switches. These example circuits were based on selected Large Hadron Collider 600 A circuits that had a stored energy of 5.5 kJ. Superconducting switches may also nd application in magnet circuits with higher transport currents and higher energies. The scaling and suitability of the reference designs to higher energy circuits was also described

    Prorector Academiæ Christian Albertinæ, quæ Kilonii Holsatorum est, Caspar March. D. Med. Prof. Primarius ... Publico Senatus Academici nomine, Ad Sacra Natalitia Jesu Christi devote celebranda Seriumque Pietatis & Pacis studium Cives Academicos hortatur & invitat

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    PRORECTOR ACADEMIÆ CHRISTIAN ALBERTINÆ, QUÆ KILONII HOLSATORUM EST, CASPAR MARCH. D. MED. PROF. PRIMARIUS ... PUBLICO SENATUS ACADEMICI NOMINE, AD SACRA NATALITIA JESU CHRISTI DEVOTE CELEBRANDA SERIUMQUE PIETATIS & PACIS STUDIUM CIVES ACADEMICOS HORTATUR & INVITAT Prorector Academiæ Christian Albertinæ, quæ Kilonii Holsatorum est, Caspar March. D. Med. Prof. Primarius ... Publico Senatus Academici nomine, Ad Sacra Natalitia Jesu Christi devote celebranda Seriumque Pietatis & Pacis studium Cives Academicos hortatur & invitat ([1]) Title page ([1]) Prorector Et Senatus Academiæ Kiloniensis Civibus Suis. S. D. ([1]

    "Closing the R&D Gap, Evaluating the Sources of R&D Spending"

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    Both spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.

    [Report to W. F. Dyson by D. K. Rodgers, March 7, 1967 #2]

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    Photocopy of a criminal intelligence report which was written by D. K. Rodgers and addressed to Captain W. F. Dyson. The report states that criminal records were retrieved for five individuals, which included the records of Sergio Arcacha

    MeSH term explosion and author rank improve expert recommendations

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    Information overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank

    [Report to W. F. Dyson by D. K. Rodgers, March 7, 1967 #1]

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    Photocopy of a criminal intelligence report which was written by D. K. Rodgers and addressed to Captain W. F. Dyson. The report states that criminal records were retrieved for five individuals, which included the records of Sergio Arcacha. A pass which allowed individuals to pass through police lines during Mardis Gras is also included
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