113 research outputs found

    Investigation of Ionospheric Plasma Flow Effects on Current Collection to Parallel Wires Using Self-Consistent Steady-State Kinetic Simulations

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/77393/1/AIAA-2005-4293-799.pd

    Enhancement of electrodynamic tether electron current collection using radio frequency power: numerical modeling and measurements

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/77143/1/AIAA-2001-3339-153.pd

    Applications of electrodynamic tethers utilizing their transmission-line characteristics

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76490/1/AIAA-2000-3868-231.pd

    A Comparison of Laboratory Experimental and Theoretical Results for Electrodynamic Tether Electron Collection Performance for Some Bare Tether Geometries

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76910/1/AIAA-2009-6659-508.pd

    Evaluation of a case-based Reasoning Energy Prediction Tool for Commercial Buildings

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    This paper presents the results of an energy predictor that predicts the energy demand of commercial buildings using Case Based Reasoning (CBR). The proposed approach is evaluated using monitored data in a real office building located in Varennes, Quebec. The energy demand is predicted at every hour for the following three hours using weather forecasts. The results show that during occupancy, 7:00 to 17:00, the coefficient of variance of the root-mean-square-error (CVRMSE) is below 12.3%, the normalized mean bias error (NMBE) is below 1.3% and the root-meansquare- error (RMSE) is below 16.6 kW. When the statistical criteria are calculated for all hours of the day, the CV-RMSE is 13.9%, the NMBE is 2.7% and the RMSE is 17.9 kW. The case study demonstrates that CBR can be used for energy demand prediction and could be implemented in building operation systems

    Measurement of Cross-Section Geometry Effects on Electron Collection to Long Probes in Mesosonic Flowing Plasmas

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/77060/1/AIAA-2003-4950-410.pd

    Current Collection to Electrodynamic Tether Systems in Space

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/77109/1/AIAA-2004-5670-600.pd

    Ground simulations of electron current to wide probes for electrodynamic tethers

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76486/1/AIAA-2001-3337-341.pd

    A CT-based revised description and phylogenetic analysis of the skull of the basal maniraptoran Ornitholestes hermanni Osborn 1903

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    Ornitholestes hermanni was one of the first small-bodiedtheropods named in the 1900s. It is known from a singlespecimen discovered during the American MuseumExpedition of 1900, at the Jurassic Morrison Formationsite known as Bone Cabin Quarry, in Wyoming. It haslong been a critical taxon in understanding the evolutionof the Coelurosauria, the clade that includestyrannosauroids, living birds, and their commonancestors. The holotype specimen comprises a nearlycomplete skull and most of a postcranial skeleton. Despitethis abundant material, its precise phylogeneticrelationships have been difficult to determine. This is inpart due to the intense mediolateral crushing of the skulland the relatively generalized postcranial anatomy. Herewe present the results of a micro- computed tomographybasedinvestigation of the cranial anatomy and subsequentincorporation of these data into a phylogenetic data matrixdesigned to test coelurosaurian interrelationships. We findrobust evidence across different optimality criteria thatOrnitholestes is the earliest-branching oviraptorosaurianspecies. Using parsimony as an optimality criterion, thisphylogenetic position is supported by 14 unambiguoussynapomorphies, including: a short frontal process of thepostorbital; short, deep, and pendant paroccipitalprocesses; a large mandibular foramen; an anterodorsallyoriented dentary symphysis; a surangular that is longerthan the dentary; short maxillary and dentary tooth rows;and procumbent dentary and premaxillary teeth. UsingBayesian fossilized birth-death models, we find highposterior probabilities (>.99) that Ornitholestes is theearliest-branching oviraptorosaurian species. Weadditionally find strong support in both analyses that thesuperficially bat-like and possibly arborealscansoriopterygids are an early branching lineage withinOviraptorosauria. This new phylogenetic position fills in apersistent ghost lineage in Oviraptorosauria and confirmsthat scansoriopterygids are basally branchingoviraptorosaurians that represent an independent origin ofaerial habits, separate from those of dromaeosaurs andavialans.Fil: Chapelle, Kimberley E.. American Museum of Natural History; Estados UnidosFil: Norell, Mark. American Museum of Natural History; Estados UnidosFil: Ford, David P.. University of the Witwatersrand; SudáfricaFil: Hendrickx, Christophe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; ArgentinaFil: Radermacher, Viktor J.. University of Minnesota; Estados UnidosFil: Balanoff, Amy. University Johns Hopkins; Estados UnidosFil: Zanno, Lindsay E.. North Carolina Museum of Natural Sciences; Estados UnidosFil: Choiniere, Jonah N.. University of the Witwatersrand; Sudáfrica81st Annual Meeting of the Society of Vertebrate PaleontologyMc LeanEstados UnidosSociety of Vertebrate Paleontolog
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