6,089 research outputs found
Variations on the Author
No full text“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
LINKING LOGAN: Reconnecting the Logan Triangle
No full textThe purpose of this project is to reinvigorate the Logan Neighborhood through the revitalization and reengagement of the Logan Triangle. Through traditional row housing, multi-family apartment complexes, investments in local businesses with prime retail space; combined with a multi-faceted community center, exceptional amphitheater space, and extensive greenspace, we look to turn Logan Triangle from a blighted oversight into a point of pride for the Logan Neighborhood
Jere Nash Interview with Johnnie Walls
No full textInterview conducted by author Jere Nash with Greenville, Mississippi attorney and state senator Johnnie Walls in the process of writing Mississippi Politics: The Struggle for Power, 1976-2006. Topics covered include Walls\u27s family and background; his law practice in Greenville; reapportionment in 1981-82; Robert Clark; Mike Espy\u27s first campaign for Congress; Mississippi Democratic Party and black candidates; Walls considering a race for the U.S. Senate in 1984; William Winter; Jesse Jackson; Walls\u27s appointment to the College Board; Ayers case on higher education funding in Mississippi; reapportionment in 1991-92; and Walls\u27s races for the Mississippi legislature
Sustainable earth walls to meet the building regulations
No full textThe thermal conductivity and diffusivity of un-fired clay bricks, a straw clay mixture and straw bales have been measured using a thermal probe technique, with an iterative method for data analysis. The steady-state air-to-air thermal transmittance, or U-value, and the time-dependent thermal properties of some proposed sustainable earth wall constructions are presented. Sustainable cavity walls of un-fired clay bricks with paper, straw or wool cavity insulation have thermal transmittances less than 0.35 W/m2 K, and therefore meet the current United Kingdom Building Regulations. A review of possible methods for thermally up-grading existing earth walls, by adding an internal insulated timber frame construction, again demonstrates possible compliance with the current UK thermal regulations
Transition and wavy walls: an experimental study: An experimental study
No full textA wide body of research exists which explores the effects of surface roughness or patterned wall shapes on instability growth and transition. Building on those works as well as recent experiments demonstrating passive laminar flow control using arrays of discrete roughness [3, 8], a set of spanwise-wavy walls is designed with the goal of suppressing instability growth in two-dimensional boundary layers. In a numerical investigation of Tollmien-Schlichting (TS) wave growth in the presence of streamwise boundary-layer streaks, Cossu and Brandt [1] found that stabilization of TS waves results from spanwise shear in the mean flow, which forms a negative contribution to production in the perturbation kinetic energy equation. Whereas previous efforts have employed streamwise vorticity developing in roughness wakes to provide the requisite mean-flow deformation, in this work stabilization is achieved through modulation of the no-slip surface. Miniature vortex generators (MVGs) have proven an effective means of producing streamwise streaks for transition delay [8], though relatively large streak amplitudes are necessary to counter their eventual decay through viscous dissipation. The notion motivating this work is that spanwise-wavy walls extended in the streamwise direction can produce a similar effect while avoiding bypass transition resulting from large-amplitude streamwise streaks. Toward that end, six wavy walls are used in a modular test model. When TS waves are excited upstream of the wavy walls, substantial delays in the onset of transition are observed for certain spanwise wavelengths compared with the flat-plate reference case
Taylor-Couette flow with asymmetric end-walls boundary conditions
No full textIn the paper the authors present the results obtained during a numerical (Direct Numerical Simulation/Spectral Vanishing Viscosity method - DNS/SVV) and experimental investigations (Kalliroscope, PIV) of the Taylor-Couette flow with asymmetric boundary conditions. In the paper attention is focused on the laminar-turbulent transition process. The main purpose of the research is to investigate the influence of different parameters (aspect ratio, curvature parameter, end-walls boundary conditions) on the flow structure and on the flow characteristics. The transverse current Jω is computed from the velocity field obtained numerically. The λ2 criterion has been used for numerical visualization
Digital Media as a Form of Electronic Graffiti (e-Graffiti): From Walls to Social Media
No full textVol 3 No 2 (Fall 2023)
Online: jps.library.utoronto.ca/index.php/nexj Visit our WebBlog: newexplorations.net
Digital Media as a Form of Electronic Graffiti (e-Graffiti): From Walls to Social Media
Vanessa Martins
Federal University of Juiz de Fora, Brazil [email protected]
Adriana Braga
Universidade Católica do Rio de Janeiro [email protected]
Robert K. Logan
University of Toronto [email protected]
Abstract: We will explore the thesis that social media are used to achieve many of the same objectives of traditional wall-based graffiti and as such are forms of electronic graffiti that can reach a much larger audience than traditional graffiti scratched or painted on walls, buildings, monuments and other public surfaces. The parallel of graffiti and e-graffiti is that both provide a medium of communication and expression to those without access to the traditional mass me- dia channels of society controlled by the owners (private or governmental) of commercial me- dia outlets. We will focus in this study on the uses of social media that parallel wall-based graf- fiti such as personal aggrandizement, boasting of achievements, protesting, expressing woke culture, political propaganda and protest, hatred, love, and rebellion. We also identify similari- ties and differences between wall-based traditional graffiti and e-graffiti
Data and code for "Uncertainty Displays Using Quantile Dotplots or CDFs Improve Transit Decision-Making" (CHI 2017)
No full text<p>This repository contains data and analysis code for the following paper:</p>
<p>Michael Fernandes, Logan Walls, Sean Munson, Jessica Hullman, and Matthew Kay. "Uncertainty Displays Using Quantile Dotplots or CDFs Improve Transit Decision-Making", Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems - CHI 2018. DOI: 10.1145/3173574.3173718<br>
</p>
Direct numerical simulation of turbulent Taylor-Couette flow with grooved walls
No full textWe present direct numerical simulations of Taylor-Couette flow with grooved walls up to inner cylinder Reynolds number of , corresponding to Taylor number of . The simulations are performed at a fixed radius ratio . The grooves are axisymmetric V-shaped obstacles attached to the wall with a tip angle of . Results are compared with the smooth wall case in order to investigate the effects of the grooved walls. In particular, we focus on the effective scaling laws for torque, boundary layers and flow structures. With increasing , the boundary layer thickness finally becomes smaller than the groove height. When this happens, the plumes are ejected from tips of the grooves and a secondary circulation between the grooves is formed. This is associated with a sharp increase of the torque and thus the effective scaling law for the torque becomes much steeper. Further increasing does not result in an additional slope increases. Instead, the effective scaling law saturates to the same ``ultimate'' regime effective exponents seen for smooth walls
Digital Media as a Form of Electronic Graffiti (e-Graffiti): From Walls to Social Media
No full textVol 3 No 2 (Fall 2023)
Online: jps.library.utoronto.ca/index.php/nexj Visit our WebBlog: newexplorations.net
Digital Media as a Form of Electronic Graffiti (e-Graffiti): From Walls to Social Media
Vanessa Martins
Federal University of Juiz de Fora, Brazil [email protected]
Adriana Braga
Universidade Católica do Rio de Janeiro [email protected]
Robert K. Logan
University of Toronto [email protected]
Abstract: We will explore the thesis that social media are used to achieve many of the same objectives of traditional wall-based graffiti and as such are forms of electronic graffiti that can reach a much larger audience than traditional graffiti scratched or painted on walls, buildings, monuments and other public surfaces. The parallel of graffiti and e-graffiti is that both provide a medium of communication and expression to those without access to the traditional mass me- dia channels of society controlled by the owners (private or governmental) of commercial me- dia outlets. We will focus in this study on the uses of social media that parallel wall-based graf- fiti such as personal aggrandizement, boasting of achievements, protesting, expressing woke culture, political propaganda and protest, hatred, love, and rebellion. We also identify similari- ties and differences between wall-based traditional graffiti and e-graffiti
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