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  1. Improved Analytic Model for Eddy Current Force Considering Edge-effect of a Conductive Plate

    The eddy current induction in a conductive medium with finite width and thickness due to a moving magnetic rotor is studied. The presented formulation is based on the second order vector potential and the...

  2. A 3-D Analytic-Based Model of a Null-Flux Halbach Array Electrodynamic Suspension Device

    The purpose of this paper is to present the derivation of a 3-D analytical solution of a null-flux electrodynamic suspension device for a conductive plate. The device consists of a linear Halbach magnet array...

  3. A 3-D Analytical Model for a Double Halbach Linear Array Electrodynamic Suspension System

    By translationally moving a magnetic source above a conductive plate guideway both levitation and drag forces are created. Unfortunately, the electrodynamic drag force can be quite high [1]. Kratz studied a...

  4. Appendix C—Deformation Models for UCERF3

    This document describes efforts to best characterize seismogenic deformation in and near California. The rate of hazardous earthquakes in California is expected to be proportional to deformation rates; in...

  5. Geodesy- and Geology-Based Slip-Rate Models for the Western United States (Excluding California) National Seismic Hazard Maps

    The 2014 National Seismic Hazard Maps for the conterminous United States incorporate additional uncertainty in fault slip-rate parameter that controls the earthquake-activity rates than was applied in previous...

  6. Empirical Evidence for the Scale Dependence of Biotic Interactions

    Aim: Although it is recognized that ecological patterns are scale dependent, the exact scales over which specific ecological processes operate are still a matter of controversy. In particular, understanding the...

  7. Introduction to Common Native and Potential Invasive Freshwater Plants in Alaska

    Freshwater aquatic plants are found in most lakes and rivers in Alaska. They range from tiny floating plants that can form mats on a lake surface to emergent plants growing two meters above the water. Aquatic...

  8. OSMB Final Report: Task 3. Containment Strategies for Eurasian Watermilfoil Infested Central OR Lakes

    In recent years, public awareness of aquatic invasive species (AIS) has increased considerably in Oregon and elsewhere in the western U.S.. News articles, boat inspection stations and AIS permit programs have...

  9. A 3-D Analytical Model of a Halbach Axial Magnetic Coupling

    A 3-D analytical model is presented for a Halbach axial magnetic coupling. The field and torque are determined by first solving a 2-D field problem at the radial location in which the radial flux density is...

  10. Torque Density Comparison of Axial and Radial Halbach Couplings

    This digests presents the closed form 3-D analytical equations for an axial and radial Halbach rotor magnetic coupling. The closed form equations give insight into the upper torque density limits of NdFeB based...

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