20,548 research outputs found

    Emmanuel N. Onyeabor v. Pro Roofing, Inc., a Utah corporation, and Pam Bates : Brief of Appellant

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    Appeal from Judgment on Jury Verdict and Orders Denying Motions for New Trial and an Additur, Entered by the Honorable Bryant J. CrDft Judge Pro Tern of the Third Judicial District Court, Salt Lake County, State of Uta

    Homologically arc-homogeneous ENRs

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    We prove that an arc-homogeneous Euclidean neighborhood retract is a homology manifold.Comment: This is the version published by Geometry & Topology Monographs on 22 April 200

    Dilemma elimination for achieving compliance

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    Drama theory provides a means of modelling pre-play communication: that is the exchanges which take place between parties as they collectively shape the confrontational arena within which they must eventually take decisive action. Participants communicate objects called ‘positions’ and ‘intentions’ and share their ‘doubts’ about each others’ declarations. On the basis of this ‘communicated common knowledge’ those involved, seeking to act rationally, normally experience dilemmas. These prompt them to devise frame-breaking changes that alter the form of the interaction, perhaps placing additional pressure upon some parties whilst relieving that experienced by others. At some point these changes cease and the participants play their actions, possibly using game theory to inform their individual strategies. Within this context, this paper explores the process of dilemma elimination, specifically seeing whether there may be favourable sequences that could be adopted: these would show a commander the most beneficial route for advantageously resolving confrontations with other parties. Such sequences would both reduce or eliminate the commander’s own dilemmas, whilst aggravating or otherwise engineering those facing other parties so as to render them more compliant. The paper uses a new version of drama theory (DT2) that offers a simpler but no less powerful formulation of the dilemmas which has as yet not been widely applied in any field

    Electric vehicle chassis dynamometer test methods at JPL and their correlation to track tests

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    Early in its electric vehicle (EV) test program, JPL recognized that EV test procedures were too vague and too loosely defined to permit much meaningful data to be obtained from the testing. Therefore, JPL adopted more stringent test procedures and chose the chassis dynamometer rather than the track as its principal test technique. Through the years, test procedures continued to evolve towards a methodology based on chassis dynamometers which would exhibit good correlation with track testing. Based on comparative dynamometer and track test results on the ETV-1 vehicle, the test methods discussed in this report demonstrate a means by which excellent track-to-dynamometer correlation can be obtained

    Performance of the Lester battery charger in electric vehicles

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    Tests are performed on an improved battery charger. The primary purpose of the testing is to develop test methodologies for battery charger evaluation. Tests are developed to characterize the charger in terms of its charge algorithm and to assess the effects of battery initial state of charge and temperature on charger and battery efficiency. Tests show this charger to be a considerable improvement in the state of the art for electric vehicle chargers

    An Infrared Study of Centaurus A

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    We present J, H and K-band images and 0.9-2.5 micron spectra of the nuclear regions of Centaurus A obtained with IRIS on the AAT. While K band has a point source coincident with the nucleus, at H and J we identify diffuse structure extending to the NE as a possible ionisation cone. By considering the NIR colours we show that the point-like K-band emission originates not from the nucleus itself, but from dust which has been shock heated by nuclear outflows. A J-K image reveals a band of high extinction across the nucleus lying perpendicular to the radio jet axis, as suggested by previous authors (Israel et al. 1990, Turner et al. 1992). We model the detailed structure of this extinction image with a circumnuclear torus of diameter 240+/-20 pc, thickness 75+/-4 pc, tilt 80+/-2 degrees to the line of sight and with the torus and radio jet axes aligned.Comment: Submitted to MNRAS on 6th Aug 1998. 12 latex pages including 4 postscript figures. 6 jpg colour figures are attached and can also be found at http://www.physics.usyd.edu.au/~jbryant/cenapub.htm

    Basic research planning in mathematical pattern recognition and image analysis

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    Fundamental problems encountered while attempting to develop automated techniques for applications of remote sensing are discussed under the following categories: (1) geometric and radiometric preprocessing; (2) spatial, spectral, temporal, syntactic, and ancillary digital image representation; (3) image partitioning, proportion estimation, and error models in object scene interference; (4) parallel processing and image data structures; and (5) continuing studies in polarization; computer architectures and parallel processing; and the applicability of "expert systems" to interactive analysis

    Upgraded demonstration vehicle task report

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    Vehicle/battery performance capabilities and interface problems that occurred when upgraded developmental batteries were integrated with upgraded versions of comercially available electric vehicles were investigated. Developmental batteries used included nickel zinc batteries, a nickel iron battery, and an improved lead acid battery. Testing of the electric vehicles and upgraded batteries was performed in the complete vehicle system environment to characterize performance and identify problems unique to the vehicle/battery system. Constant speed tests and driving schedule range tests were performed on a chassis dynamometer. The results from these tests of the upgraded batteries and vehicles were compared to performance capabilities for the same vehicles equipped with standard batteries

    Vehicle test report: South Coast technology electric conversion of a Volkswagen Rabbit

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    The South Coast Technology Volkswagen Rabbit, was tested at the Jet Propulsion Laboratory's (JPL) dynamometer facility and at JPL's Edwards Test Station (ETS). The tests were performed to characterize certain parameters of the South Coast Rabbit and to provide baseline data that will be used for the comparison of near term batteries that are to be incorporated into the vehicle. The vehicle tests were concentrated on the electrical drive system; i.e., the batteries, controller, and motor. The tests included coastdowns to characterize the road load, maximum effort acceleration, and range evaluation for both cyclic and constant speed conditions. A qualitative evaluation of the vehicle was made by comparing its constant speed range performance with those vehicles described in the document 'state of the Art assessment of Electric and Hybrid Vehicles'. The Rabbit performance was near to the best of the 1977 vehicles
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