94,881 research outputs found

    Path analysis for process troubleshooting

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    Interactive cutting path analysis programs

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    The operation of numerically controlled machine tools is interactively simulated. Four programs were developed to graphically display the cutting paths for a Monarch lathe, Cintimatic mill, Strippit sheet metal punch, and the wiring path for a Standard wire wrap machine. These programs are run on a IMLAC PDS-ID graphic display system under the DOS-3 disk operating system. The cutting path analysis programs accept input via both paper tape and disk file

    Data path analysis for dynamic circuit specialisation

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    Dynamic Circuit Specialisation (DCS) is a method that exploits the reconfigurability of modern FPGAs to allow the specialisation of FPGA circuits at run-time. Currently, it is only explored as part of Register-transfer level design. However, at the Register-transfer level (RTL), a large part of the design is already locked in. Therefore, maximally exploiting the opportunities of DCS could require a costly redesign. It would be interesting to already have insight in the opportunities for DCS from the higher abstraction level. Moreover, the general design trend in FPGA design is to work on higher abstraction levels and let tool(s) translate this higher level description to RTL. This paper presents the first profiler that, based on the high-level description of an application, estimates the benefits of an implementation using DCS. This allows a designer to determine much earlier in the design cycle whether or not DCS would be interesting. The high-level profiling methodology was implemented and tested on a set of PID designs

    OmniVista:an application for isovist field and path analysis

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    This paper briefly describes the software application OmniVista written for the Apple MacintoshPlatform. OmniVista is essentially an isovist generating application, which uses the 2d planof a building or urban environment as input data, and then can be used in one of threemodal ways. Firstly, point isovists can be generated by ?clicking? onto any location in theenvironment. Secondly, all navigable space can be flood-filled with points, which may then beused to generate a field of isovists. Finally, a path of points can be used to examine howisovist properties vary along the path - the results of this can either be output as numericaldata, or exported as a series of pictures, which may be combined to form an animation of thevarying isovists along the route. This paper will examine all three modes of use in turn,starting from the simplest (point) to the more complex (the path). A description and equationfor all isovist measures used in the application will also be given as an appendix to thepaper

    OmniVista:an application for isovist field and path analysis

    Get PDF
    This paper briefly describes the software application OmniVista written for the Apple MacintoshPlatform. OmniVista is essentially an isovist generating application, which uses the 2d planof a building or urban environment as input data, and then can be used in one of threemodal ways. Firstly, point isovists can be generated by ?clicking? onto any location in theenvironment. Secondly, all navigable space can be flood-filled with points, which may then beused to generate a field of isovists. Finally, a path of points can be used to examine howisovist properties vary along the path - the results of this can either be output as numericaldata, or exported as a series of pictures, which may be combined to form an animation of thevarying isovists along the route. This paper will examine all three modes of use in turn,starting from the simplest (point) to the more complex (the path). A description and equationfor all isovist measures used in the application will also be given as an appendix to thepaper

    Component-based structural equation modelling

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    In this research, the authors explore the use of ULS-SEM (Structural-Equation-Modelling), PLS (Partial Least Squares), GSCA (Generalized Structured Component Analysis), path analysis on block principal components and path analysis on block scales on customer satisfaction data.Component-based SEM; covariance-based SEM; GSCA; path analysis; PLS path modelling; Structural Equation Modelling; Unweighted Least Squares

    A note on Hawking radiation via complex path analysis

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    As long as we neglect backreaction, the Hawking temperature of a given black hole would not depend upon the parameters of the particle species we are considering. In the semiclassical complex path analysis approach of Hawking radiation, this has been verified by taking scalar and Dirac spinors separately for different stationary spacetime metrics. Here we show, in a coordinate independent way that, for an arbitrary spacetime with any number of dimensions, the equations of motion for a Dirac spinor, a vector, spin-22 and spin-32\frac{3}{2} fields reduce to Klein-Gordon equations in the WKB semiclassical limit. We then obtain, under some suitable assumptions, the complex solutions of those resulting scalar equations across the Killing horizon of a stationary spacetime to get a coordinate independent expression for the emission probability identical for all particle species. Finally we consider some explicit examples to demonstrate the validity of that expression.Comment: 12 pages, v2; manuscript divided into sections, many discussions and references adde
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