90 research outputs found

    The 1999 Center for Simulation of Dynamic Response in Materials Annual Technical Report

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    Introduction: This annual report describes research accomplishments for FY 99 of the Center for Simulation of Dynamic Response of Materials. The Center is constructing a virtual shock physics facility in which the full three dimensional response of a variety of target materials can be computed for a wide range of compressive, ten- sional, and shear loadings, including those produced by detonation of energetic materials. The goals are to facilitate computation of a variety of experiments in which strong shock and detonation waves are made to impinge on targets consisting of various combinations of materials, compute the subsequent dy- namic response of the target materials, and validate these computations against experimental data

    New maverick coset theories

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    We present new examples of maverick coset conformal field theories. They are closely related to conformal embeddings and exceptional modular invariants.Comment: 6 pages, LaTeX2

    Performance of Quality Assurance Procedures for an Applied Climate Information System

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    Valid data are required to make climate assessments and to make climate-related decisions. The objective of this paper is threefold: to introduce an explicit treatment of Type I and Type II errors in evaluating the performance of quality assurance procedures, to illustrate a quality control approach that allows tailoring to regions and subregions, and to introduce a new spatial regression test. Threshold testing, step change, persistence, and spatial regression were included in a test of three decades of temperature and precipitation data at six weather stations representing different climate regimes. The magnitude of thresholds was addressed in terms of the climatic variability, and multiple thresholds were tested to determine the number of Type I errors generated. In a separate test, random errors were seeded into the data and the performance of the tests was such that most Type II errors were made in the range of 1C for temperature, not too different from the sensor field accuracy. The study underscores the fact that precipitation is more difficult to quality control than temperature. The new spatial regression test presented in this document outperformed all the other tests, which together identified only a few errors beyond those identified by the spatial regression test

    Reviews

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    The following publications have been reviewed by the mentioned authors;Technology Education - A World Wide Concern - reviewed by Dr Thomas GinnerLiving Materials - Practical Activities in Science and Technology - reviewed by David FosterSTEP Design and Technology: Resistant Materials - reviewed by Les PorterSTEP Design and Technology: Food - reviewed by Jenny JupeTERU Diagnostic Tests in Design and Technology - reviewed by Bill GoddardUnderstanding Practice in Design and Technology - reviewed by Melanie FasciatoTeaching Design and Technology - reviewed by John HillD&T Alive at Alton Towers Key Stage 3 - reviewed by John DurrellSucceeding with Autocad - reviewed by P WhittakerTIckle the Senses! - reviewed by Ali FarrellThe Fast Food Diner - reviewed by Margaret Jepso

    Membrane Protein Production in Insect Cells

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    Membrane proteins are an essential part of the machinery of life. They connect the interior and exterior of cells, play an important role in cell signaling and are responsible for the influx and efflux of nutrients and metabolites. For their structural and functional analysis high yields of correctly folded and modified protein are needed. Insect cells, such as Sf9 cells, have been one of the major expression hosts for eukaryotic membrane proteins in structural investigations during the last decade, as they are easier to handle than mammalian cells and provide more natural posttranslational modifications than microbial systems. Here we describe general techniques for establishing and maintaining insect cell cultures, the generation and amplification of recombinant baculovirus stocks using the flashBAC™ or Bac-to-Bac™ systems, membrane protein production, as well as the production of membrane preparations for extraction and purification experiments

    Reviews

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    The following publications have been reviewed by the mentioned authors;Technology Education for Teachers - reviewed by Bill GoddardUnderstanding Design and Technology Key Stage 2 & 3 - reviewed by Melanie FasciatoElectronics Tasks and Assignments - reviewed by Trevor TaylorOutline Scheme of Work 'Working towards Capability' - reviewed by Bill GoddardCADpius - reviewed by Les PorterTechnology 1 - reviewed by Richard AgerDigital Electronics - reviewed by David FosterAn Introduction to Usability - reviewed by Anne RiggsHow do they do that? - reviewed by Jonty KinsellaD & T Routes: Graphic Products - reviewed by George AsquithD & T Routes: Textiles - reviewed by Jillian MellorD & T Routes: Resistant Materials - reviewed by Chris SnellD & T Routes: Food - reviewed by Margaret JepsonD & T Routes: Control Products - reviewed by Chris WoodD & T Routes: Core Book - reviewed by Jenny JupeD & T Routes: Teacher's Resource - reviewed by Jenny Jup
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