6 research outputs found

    Bio-inspired fluid locomotion

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    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.Includes bibliographical references (leaves 95-99).We have developed several novel methods of locomotion at low Reynolds number, for both Newtonian and non-Newtonian fluids: Robosnails 1 and 2, which operate on a lubrication layer, and the three-link swimmer which moves in an unbounded fluid. Robosnail 1 utilizes lubrication pressures generated in a Newtonian fluid under a steadily undulating foot to propel itself forward. Tractoring force and velocity measurements are in agreement with analytic and numerical solutions. Robosnail 2, modeled after real land snails, uses in-plane compressions of a flat foot on a mucus substitute such as Laponite or Carbopol. Robosnail 2 exploits the non-Newtonian qualities (yield-stress, shear thinning) of the fluid solution to locomote. The glue-like behavior of the unyielded fluid allows Robosnail 2 to climb up a 90 degree incline or inverted 180 degree surfaces. The three-link swimmer is a device composed of three rigid links interconnected by two out-of-phase oscillating joints. It is the first experimental test that successfully demonstrates that a swimmer of its kind can translate in the Stokes limit.by Brian Chan.Ph.D

    Labonte & Castonguay Family Stories

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    https://digitalmaine.com/livermore_books/1000/thumbnail.jp

    Chronology of KSC and KSC Related Events for 2008

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    This document is intended to serve as a record of KSC events and is a reference source for historians and other researchers. Arrangement is by day and month and individual articles are attributed to published sources. Materials were researched and compiled by the KSC Library Archivist for KSC Library Services Contractor, Abacus Technology Corporation

    The metafictive in picture books : a theoretical analysis of the nature and origins of contemporary children's picture books, with case studies of children reading picture book texts

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    The thesis is about picture books and how children read them, and is divided into three parts. In part one I identify a striking parallel between certain exemplary contemporary picture books and the tendency within adult fiction known as postmodernism or metafiction. I enlarge upon this analogy and attempt to establish a tentative taxonomy of metafictive picture books. Part one concludes with an account of an early attempt at exploring how young children read such texts, and with the establishing of the core questions of the thesis: i.e. what is the relation of the metafictive picture book to the form in general?; why is such a highly self-conscious, reflexive form of text found in picture books for young children?; and how do young children read such books? In part two I begin by reviewing the available literature on picture books and then attempt to construct a theory of picture book text. These core theoretical chapters (chapters five, six and seven) are concerned with the nature of pictorial representations and how readers read them; with a revisionist account of the historical origins of the picture book; and with the developing of a view of the picture book as a distinctivelypolysysiemic form of text - i.e. a form of text closely akin to the novel. An attempt is then made to answer the first two of the three main questions. The final part of the thesis explores, through a number of case studies, how young children might construe metafictive texts and traces some of the different ways in which they attempt to make sense of them

    Bowdoin Orient v.139, no.1-26 (2009-2010)

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    https://digitalcommons.bowdoin.edu/bowdoinorient-2010s/1000/thumbnail.jp

    Maritime expressions:a corpus based exploration of maritime metaphors

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    This study uses a purpose-built corpus to explore the linguistic legacy of Britain’s maritime history found in the form of hundreds of specialised ‘Maritime Expressions’ (MEs), such as TAKEN ABACK, ANCHOR and ALOOF, that permeate modern English. Selecting just those expressions commencing with ’A’, it analyses 61 MEs in detail and describes the processes by which these technical expressions, from a highly specialised occupational discourse community, have made their way into modern English. The Maritime Text Corpus (MTC) comprises 8.8 million words, encompassing a range of text types and registers, selected to provide a cross-section of ‘maritime’ writing. It is analysed using WordSmith analytical software (Scott, 2010), with the 100 million-word British National Corpus (BNC) as a reference corpus. Using the MTC, a list of keywords of specific salience within the maritime discourse has been compiled and, using frequency data, concordances and collocations, these MEs are described in detail and their use and form in the MTC and the BNC is compared. The study examines the transformation from ME to figurative use in the general discourse, in terms of form and metaphoricity. MEs are classified according to their metaphorical strength and their transference from maritime usage into new registers and domains such as those of business, politics, sports and reportage etc. A revised model of metaphoricity is developed and a new category of figurative expression, the ‘resonator’, is proposed. Additionally, developing the work of Lakov and Johnson, Kovesces and others on Conceptual Metaphor Theory (CMT), a number of Maritime Conceptual Metaphors are identified and their cultural significance is discussed
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