1,819,113 research outputs found
Acoustic radiation due to scattering of T-S wave by the mean-flow distortion induced by steady local suction
No full textSubstantial sound waves can be generated by boundary-layer instability modes when the latter are scattered by a rapid mean-flow distortion. This is a rather generic mechanism and operates when an oncoming T-S wave is scattered by a steady local suction slot. This paper focuses on this problem by extending a recently developed Local Scattering Theory (Wu & Dong, J. Fluid Mech. submitted), where a so-called transmission coefficient, defined as the ratio of the T-S wave amplitude downstream of the scatter to that upstream, is introduced to characterize the effect of a local scatter on boundary-layer instability and transition. As in the earlier work, the mathematical formulation is based on triple-deck formulism, but in order to accommodate the acoustic far field, which was not considered in the paper mentioned, the unsteady terms in the upper deck, which play a leading-order role in radiation, are retained, and the influence of the radiated sound on the near-wall perturbation is included. The upper deck equation for the pressure is the Helmholtz equation rather than the Laplace equation. This leads to a modified pressure-displacement relation, which is coupled with the linearized boundary-layer equations in the lower deck. Discretization of the whole system formulates a generalized eigenvalue problem, which is solved numerically. It is found that suction suppresses oncoming T-S waves, and this effect increases with the suction velocity and the slot width. The directivity is ndependent of the flow parameters only when the Mach number is low. The intensity of the radiated sound in general increases with the frequency, the suction velocity and the width of the suction slot. Interestingly, for O(1) suction velocities, the radiated sound is very weak, indicating that the gain of stabilizing effect does not cause aeroacoustic penalty
W. T. S. Cumming
No full text"51016 RAAF Sgt W.T.S. Cumming No 11 & 20 Sqn Catalina".51016 Royal Australian Air Force. Sergeant W. T. S. Cumming. Number 11 & 20 Squadrons, Catalina
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
T. S. Walker 25 cents (twenty-five cents) private scrip
No full text(L) Eagle. (R) ''25''.This private scrip was issued in Gonzales by T. S. Walker. An eagle is printed in the center of an ornate border design along the left edge of the note. The number ''25'' is printed in the center of the right border in a bold typeface. The amount ''TWENTY-FIVE CENTS'' appears in the upper-center of the note. The date, May 5, 1862., is printed along the bottom edge. BC-407.T. S. Walke
T. S. Walker 25 cents (twenty-five cents) private scrip
No full text(L) Sailing ship. (R) ''25''.This private scrip was issued in Gonzales by T. S. Walker. A small sailing ship is printed within an ornate border design along the left edge of the note. The number ''25'' is printed in the center of the right border in a bold typeface. The amount ''TWENTY-FIVE CENTS'' appears in two lines along the upper-center of the note. The date, May 5, 1862., is printed along the bottom edge. BC-408.T. S. Walke
The European Nabokov Web, Classicism and T. S. Eliot
No full textThe European Nabokov Web, Classicism, and T. S. Eliot -- Contents -- Abbreviations -- Foreword -- Introduction -- Lingua Franca and Topsy-turvical Coincidence -- In Search of Horace and a Web of Sense -- Héraclius, Hamlet and Genealogy -- Genealogical Tree of the Royal House of Onhava -- Other relationships -- Zembla - "How Farce and Epic Get a Jumbled Race" -- Hamlet Unrestored: Sémiramis and the Royal Tomb -- Classical Affinities I : A Modern Aeneas -- Classical affinities II: An Ancient Nisus -- The Browning Version and Contemporary Reality -- Corn, Cuckoldry, and the Amazonian Chin -- Toile d'Eliot or Combinational Delight -- Phoenician Metamorphoses: Myth and Reality -- Varia - Selenography, Kinbote/Botkin, Glaucus, Fénélon -- Murderous Intrigues -- Tragedy and the St agyrite -- Dramatic Poetry, Regicide, and Poetic Drama -- Germanitas and Les Germains -- Deus in Machina -- Bibliography -- IndexDescription based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
Thompson, James T. S. - An inaugural dissertation on digestion
No full textHandwritten inaugural dissertation on digestion by James T. S. Thompson, of Spring Hill, Maury County, Tennessee.Inaugural dissertation; no. 465
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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