2,047 research outputs found

    Process evaluation distributed system

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    The distributed system includes a database server, an administration module, a process evaluation module, and a data display module. The administration module is in communication with the database server for providing observation criteria information to the database server. The process evaluation module is in communication with the database server for obtaining the observation criteria information from the database server and collecting process data based on the observation criteria information. The process evaluation module utilizes a personal digital assistant (PDA). A data display module in communication with the database server, including a website for viewing collected process data in a desired metrics form, the data display module also for providing desired editing and modification of the collected process data. The connectivity established by the database server to the administration module, the process evaluation module, and the data display module, minimizes the requirement for manual input of the collected process data

    James Hog of Carnock (1658-1734): leader in the evangelical party in early eighteenth century Scotland

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    The title—"James Hog of Carnock (1658-1734), Leader in the Evangelical Party in Early Eighteenth Century Scotland"-—has been the limiting factor in the development and scope of this thesis. It is not without significance that Hog is described as "Leader in the Evangelical Party": the claim is not that he was the leader of that school; but he is presented herein as one of the leaders in the Evangelical party. This means that the share of Thomas Boston, the Erskines, and others of that group in Evangelical leadership is by no means denied, but it is not the scope of this thesis to give an exhaustive study of these particular men, of their party, or even of the various controversies herein discussed. Their contributions are for the most part not included in the thesis, or are included only insofar as is necessary to establish Hog's function in the various scenes, to balance the discussion, or to throw light upon the overall picture. In other words, the various subjects presented in the thesis are developed as James Hog impinged upon them, or as they impinged upon James Hog.The words "Evangelical Party" are intended to apply in a broad way,for it is an accepted fact that there was, during the period under consideration, no hard and fast Evangelical—as opposed to Moderate—party. It was more properly an Evangelical school and as such the words are understood and developed.Throughout his ministry, as Churchman, theologian, author, publisher, and pastor, James Hog/ adhered firmly to the ancient and received doctrines of the Reformed Church. He was not in truth a creative thinker, an innovator, or a deviator from the old paths; but an agitator, a proclalmer, and a propagator of the Reformed theology. One change of emphasis alone appears in his teachings: Prom about &718 he was at greater pains to articulate more forcibly and boldly than he had previously done the love of "our good and gracious Lord". This love he could affirm most constrainingly when he was sorely afflicted by virtue of his recommendation of the Marrow and his preaching the doctrines of grace.An appeal for and courageous testimony to the spiritual independence of the Church; the Word of God the only rule of faith and practice; the depravity of natural man; God's sovereignty in grace; justification by faith alone; the sufficiency of the Savior; the grace of faith; purity of life in gratitude to the love of God in Christ; and the Communion of Saints: this was the emphasis of James Hog as an Evangelical leader. The words, grace and faith, are the two keynotes of his teaching. If Hog were asked to state in a few words the quintessence of his message to Scotland, his quick reply would almost certainly be, "The sufficiency of the sacrifice, and the suitableness of the Savior for all, and for every man, who will talce him as he is offered in the gospel." In the final analysis, it was not only the nature and emphasis of his message, but also his sterling character, his indomitable spirit, and the impact of his dynamic personality, which was of an Evangelical color in itself, that constituted Jarae3 Hog an Evangelical leader in early eighteenth century Scotland

    Radiative Decay Rates of Metastable Triplet Helium and Heliumlike Ions

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    The metastable 1 s 2 s 3 S 1 state of helium is the longest-lived neutral atomic state with a lifetime of 7859 seconds. This property has important astrophysical applications in the determination of temperature and density conditions in low density sources such as planetary nebulae. This lifetime is determined by single photon relativistic magnetic dipole (M1) transition rates and is evaluated numerically using large basis size variational Hylleraas wave functions for all the heliumlike ions through the isoelectronic sequence up to Ar +16 . The coefficients of a Z -1 expansion, based on the results from the variational calculation, are evaluated up to ninth order with the zeroth and first order coefficients being determined analytically. This Z -1 expansion is used to evaluate the lowest order M| 1 transition rates for heliumlike ions through the isoelectronic sequence from K +17 to Fm +98 . The results for helium are compared with experimental measurements by Moos and Woodsworth(1975), recent experimental results by Hodgman et al.(2009) and high precision numerical calculations by Lach and Pachucki (2001). For heliumlike ions, results are compared with several electron beam ion trap measurements for heliumlike lithium, carbon, oxygen, neon, and sulfur. This value of the 1 s 2 s 3 S 1 [arrow right] 1 s 2 1 S 0 transition rate evaluated in this work is 1.2724255998(6) × 10 -4 s -1 , where the uncertainty in this result is given in parentheses

    To lead or not to lead : analysis of the sprint in track cycling

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    This paper uses a statistical analysis of match sprint outcomes to guide tactical decisions in this highly tactical contest and to provide competitors and coaches with a potential, marginal gain. Logistic regression models are developed to predict the probability of the leading rider winning at different points of the race, based on how the race proceeds up to each point. Key tactics are successfully identified from the models, including how the leading rider might hold the lead and how the following rider might optimise overtaking

    Generation of coherent magnetic fields in sheared inhomogeneous turbulence: No need for rotation?

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    Coherent magnetic fields are often believed to be generated by the combination of stretching by differential rotation and turbulent amplification of magnetic field, via the so-called alpha effect. The latter is known to exist in helical turbulence, which is envisioned to arise due to both rotation and convection in solar-type stars. In this contribution, a turbulent flow driven by a nonhelical inhomogeneous forcing and its kinematic dynamo action are studied for a uniform magnetic field in the background of a linear shear flow. By using a quasilinear analysis and a nonperturbative method utilizing a time-dependent wave number, turbulence property and electromotive force are computed for arbitrary shear strength. Due to the large-scale shear flow, the turbulence is highly anisotropic, as a consequence, so is the electromotive force. The latter is found to exist even without rotation due to the combined effect of shear flow and inhomogeneous forcing, containing not only the alpha effect but also magnetic pumping (the gamma effect representing a transport of magnetic flux by turbulence). Specifically, without shear, only the magnetic pumping exists, aligned with the direction of inhomogeneity. For a weak but nonzero shear, the combined effects of shear and inhomogeneous forcing modify the structure of the magnetic pumping when the inhomogeneity is in the plane of the shear flow, the magnetic pumping becoming bidimensional in that plane. It also induces an alpha tensor which has nondiagonal components. When the inhomogeneity is perpendicular to the plane of the shear flow, the alpha effect has three nonzero diagonal components and one off-diagonal component. However, for a sufficiently strong shear, the gamma and alpha effects are suppressed due to shear stabilization which damps turbulence. A simplified dynamo model is then proposed where a large-scale dynamo arises due to the combined effect of shear flow and inhomogeneous forcing. In particular, the growth of a large-scale axisymmetric magnetic field is demonstrated in case of an inhomogeneity which is perpendicular to the plane of the shear flow. Interesting implications of these results for the structure of magnetic fields in star with slow rotation are discussed. (C) 2011 American Institute of Physics. [doi:10.1063/1.3551700

    A new proof that alternating links are non-trivial

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    We use a simple geometric argument and small cancellation properties of link groups to prove that alternating links are non-trivial. This proof uses only classic results in topology and combinatorial group theory.Comment: Minor changes. To appear in Fundamenta Mathematica

    Creation and evolution of magnetic helicity

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    Projecting a non-Abelian SU(2) vacuum gauge field - a pure gauge constructed from the group element U - onto a fixed (electromagnetic) direction in isospace gives rise to a nontrivial magnetic field, with nonvanishing magnetic helicity, which coincides with the winding number of U. Although the helicity is not conserved under Maxwell (vacuum) evolution, it retains one-half its initial value at infinite time.Comment: Clarifying remarks and references added; 12 pages, 1 figure using BoxedEPSF, REVTeX macros; submitted to Phys Rev D; email to [email protected]

    Nonlinear dynamo action in a precessing cylindrical container

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    It is numerically demonstrated by means of a magnetohydrodynamics (MHD) code that precession can trigger the dynamo effect in a cylindrical container. This result adds credit to the hypothesis that precession can be strong enough to be one of the sources of the dynamo action in some astrophysical bodies.Comment: 5 pages, 5 figures including subfigure

    Repair of Y-T Humeral Condyle Fractures with Locking Compression Plate Fixation

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    The aim of this study was to describe the use of locking compression plates (LCP) in Y-T humeral condyle fractures and to evaluate their clinical outcome
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