39 research outputs found
Hydrodynamic and water quality modelling of Chicago Area Waterway System (CAWS)
No full textChicago Area Waterway System (CAWS) is a highly branched network of natural rivers and man-made canals. The total length of CAWS including rivers and canals is about 250 kms (156 miles). Although not very long CAWS is famous for the engineering feat that reversed the flow of Chicago River (CR), an integral part of CAWS, westward away from lake Michigan into which it previously drained. The flow in CAWS is regulated with the help of controlling structures existing at the extremities of the system. Also present at the banks of CAWS are four waste water treatment plants (WWTP's). Discharge from these four WWTP's account for the 75 percent of the flow in CAWS. CAWS also serve as an important link between Mississippi River basin and the Great Lakes. Although the dry-weather flow discharge in CAWS is as low as 15-20 m3/s; the wet-weather flow discharge can be as high as 400 m3/s. The normal dry-weather flow pattern in CAWS is from north to south and quite unidirectional. During the wet-weather condition with inflows from numerous CSO outlets, pumping station and WWTP's the flow becomes entirely three-dimensional.
In this research two and three dimensional numerical models are developed and applied to gain insights into the flow structure of CAWS under both dry and wet weather conditions. Numerical models based on different methodologies are used to study the flow physics in CAWS. For the two dimensional modelling two different models are used. A finite-difference model capable of solving shallow water equations (SWE) on generalised curvilinear coordinates on structured mesh is developed and applied to a portion of CAWS. Also used for the two dimensional modelling is a finite-element model, TELEMAC-2D, for the same portion of the river. TELEMAC suite of models are open-source and freely downloadable and have been developed by EDF (Laboratoire National D'hydraulique Et Environment). Furthermore the parallelized version of TELEMAC-2D is used for larger spatial domain of CAWS and temporally longer simulations are conducted. The results from hydrodynamic simulations are validated with the help of observed data obtained from the United States Geological Survey (USGS) located inside the computational domain.
As regards to three-dimensional modelling again combination of numerical models are used. EPA (Environmental Protection Agency) approved three-dimensional model EFDC (Environmental Fluid Dynamics Code) is used for the three-dimensional modelling of CAWS. For longer term simulation of CAWS, EFDC model has been parallelized using Open-MP paradigm leading to {I-EFDC} model. EFDC model solves the three dimensional vertically hydrostatic, free surface, turbulent averaged equations of motions for a variable density fluid. EFDC uses a stretched sigma or vertical coordinates and curvilinear orthogonal horizontal coordinates and is applied on structured mesh. The results obtained by the EFDC model were again validated with the help of observed data from various USGS gauging stations. After having applied and calibrated the hydrodynamic model; the water quality modelling of CAWS as a whole and it's various portions are conducted in a piecewise manner. For the water quality simulation simplistic DO-BOD (dissolved oxygen - biochemical oxygen demand) models is developed under Open-MP paradigm and joined with the hydrodynamic kernel of EFDC. Furthermore for portions of CAWS another three-dimensional model TELEMAC-3D is used. Once again for simulating range of flow conditions on a fine mesh, the MPI (message passing interface) parallelized version of TELEMAC-3D is used. Both with 2D and 3D models very good agreement between the observed and modelling results are obtained.
As CAWS criss-crosses through the city of Chicago and adjoining areas; its importance from aesthetic, environmental, social and economic point of view can not be over emphasized. The insights gained from the numerical modelling effort presented here will finally help in better management and upkeep of CAWS.Item withdrawn by Alexis Thompson ([email protected]) on 2012-08-08T13:39:09Z
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The Dalí Renaissance: New Perspectives on His Life and Art after 1940 and Danser Gala: L’Art Bouffe de Salvador Dalí
No full textOn the Intelligibility of our Present History: The Contemporary Relevance of the Critique of Dialectical Reason and some other Sartrian Texts
No full textJean-Paul Sartre is the writer who gave the most trenchant formulation of existentialism and tried to do the same for a version of Marxism, and as a philosopher of history who got it wrong about history and then, in his last "philosophical manifesto" – volume III of the Idiot (English version volume V) – got it brilliantly right. But Sartre did not write the second volume of the Critique. Or, more exactly, he wrote it but he did not publish it. The Critique, as Sartre himself admitted, grew like a hernia on the body of the book on Flaubert, so that it had to be surgically removed and given a life of its own; but a sort of symbiosis persisted, and when it came to the continuation of the argument, Sartre seems to have sensed that volume II was a dead end, and that the route to the alternative would prove to lie after all in the Flaubert project itself. In order to understand Sartre's position, the author analyzes his conception of history, especially of the intelligibility of history by mean of the dialectical reason as a movement of totalization of practical seriality, and shows its actuality
Evaluating a Learning Object Repository: A Pilot Study
No full textThis article describes a pilot study performed in the Fall of2004in order to evaluate the functional aspect of FLORE, a newlearning object repository for French teaching and learning.The study seeks to elaborate a standard and iterative evaluationprocess in order to better analyse the educational value oflearning object repositories. Developped as a prototype, FLOREis a web portal similar to MERLOT or CAREO that aggregatesa collection of objects and sites for the community of educatorsand learners of the French language. The author here describesits specificities and draws initial conclusions based on theparticipants\u27 evaluations and contributions towards the furtherdevelopment of the repository
The Persistence of Minimalism
No full textThe following work develops a new and general theory of minimalism – one addressing both its transhistorical and interdisciplinary dimensions, and capable of accounting for existing minimalism of every epoch and in every medium, while suitably open to embrace minimalist work yet to be created. To offer such a theory it is necessary not only to revisit the histories of minimalist practice and criticism, but also to consider its radical philosophical ground and implications. Hence its principal thesis – that minimalism exemplifies the persistence and facticity of the Real – grapples at once with the ontological heart of minimalist theory, and its practical instantiation through canonical as well as rarely considered examples. Divided into three parts, the first part addresses minimalism as the manifestation of particular aesthetic properties in relation to critical and theoretical trends. Since it becomes apparent that no single descriptive or theoretical account adequately frames minimalism, the discussion turns to the possibility of discovering a philosophical ground equally radical to the minimalist objects it addresses. The Real – an indifferent field of forces from which contingent entities are subtracted from within an irreversible temporal passage – offers precisely this radical continuum. Minimalism, by exposing the continuity between radical poiesis and an essentially quantitative understanding of Being, clarifies the indifferent persistence of the Real in every existential situation. Penetrating to the heart of this proposition, parts two and three respectively address minimalism in terms of its quantitative logic of Being – every exemplary subtraction from which is instantiated a type of existential calculation – and its exemplary aesthetic manifestation in terms of an existential transumption – a constructive poietic displacement by which minimalism renders itself maximally intelligible in terms of its objecthood and persistence. The work concludes with a typology which reorients and confirms the substance of the preceding argumentation
Intermedia poetics (of landscape)
No full textAfter surveying the current state of literary and cultural studies which may contribute to intermedia research, the author suggests a literature-centred intermedia poetics of landscape, involving inter-art concepts introduced by Mary Ann Caws, Tamar Yacobi and incentives for landscape observation as given by literary critics and art historians such as Malcolm Andrews and Michael Charlesworth. Particular aspects of the suggested poetics are illustrated by examples of analysis of Czech fiction (Karel Václav Rais, Alois Jirásek and Martin Fibiger)
Application de principes cognitivistes et constructivistes à l'enseignement de l'écrit assisté par ordinateur : perceptions des étudiants
No full textIn this article, we look at the principles of the cognitive and constructivist theories that apply to the teaching of computer mediated writing in a post-secondary setting for learners of French as a second language. The author describes a pilot study that was conducted at the University of Victoria, Canada. She explains that by creating web-based collaborative writing tasks, instructors can truly engage students, increase their motivation and make them more conscious of their own learning strategies.Cet article traite des apports des théories cognitives et constructivistes à l'enseignement de l'écrit assisté par ordinateur, en milieu universitaire, chez des apprenants de français langue seconde. À partir des premiers résultats d'un projet pilote mené à l'université de Victoria, au Canada, l'auteure cherche à montrer comment, par le biais d'exercices collaboratifs en réseau Internet, l'application de certains principes-clés des recherches récentes en didactique du français langue seconde peuvent contribuer à un renouveau de l'engagement des étudiants, à une hausse notable de leur motivation et à une prise de conscience de leurs stratégies d'apprentissage
Surrealism, photography and the periodical press: an investigation into the use of photography in surrealist publications (1924 - 1969) with specific reference to themes of sexuality and their interaction with commercial photographic images of the period
No full textThis thesis examines the use of photographs in surrealist publications in Paris between 1924 and 1969, analysing how images functioned both in relation to surrealism and a wider cultural, social and political context. The thesis contends that developments in the illustrated press had a substantial impact on surrealist publications and that commercial photographic practices were both exploited and subverted by the group. I defend this assertion by demonstrating how photographers associated with the surrealist movement in its formative years, were closely involved in the process by which the photographic image became a major means of communication. I argue that the surrealists were conscious that photography was central to the circulation of ideas and developed a radical notion of the illustration of text. The thesis examines how photographs used in surrealist publications were integrated into the complex surrealist project and how due to the currency in images in society, the medium offered opportunities for disruption. In each of the five chapters I examine the surrealist deployment of photographic images to articulate cultural and political radicalism. The thesis argues that the photographs published by the surrealists made an important contribution to contemporary discourse on sexuality This thesis makes an original contribution to knowledge as it expands the understanding of photographs published by the surrealist group by exploring their relationship to contemporary commercial images circulating in the press. It analyses works that have been marginalised, many of the images in the first two journals in the inter war period, the images in the illustrated books 1929, Banalité, Le septième face du dé and the images in the post war journals have been neglected as subjects of study
The yagé aesthetic of William Burroughs: the publication and development of his work 1953-1965
No full textPhDMy concern in this thesis is to show that a reconstruction of the publishing history of
the work of William Burroughs offers a new, critical perspective on his experiments
with psychoactive substances and their connection to his developing practice.
I begin with an exploration of the publication of The Yage Letters (1963) and Naked
Lunch (1959), and reveal how the complexities of their publishing histories shaped
their critical reception. I examine the legal defence of Naked Lunch as it developed
from the Big Table Post Office hearing through to the 1965 Boston trial and
demonstrate the degree to which censorship came to define the published text. The
legal defence of Naked Lunch, as it was incorporated into the Grove publication,
emphasised the issue of opiate addiction. The way in which Burroughs’ 1953 letters to
Allen Ginsberg were reworked as The Yage Letters did much to conceal the
significance of yagé for Burroughs’ later work. Together, these publishing histories
have obscured the relationship between his use of psychoactive substances and his
evolving aesthetic.
At the same time many of Burroughs’ most experimental - and important - works
appeared only in small, ephemeral magazines. His adoption of avant-garde strategies
such as collaboration and collage and his dedication to multimedia experimentation
with the non-chemical alteration of consciousness made conventional book
publication problematic or unsuitable. These experiments in aesthetic production, I
argue, are central to our understanding of Burroughs. His main published writings
must be re-evaluated as one element in this collage of multimedia activities.
4
I argue that Burroughs’ experiences with yagé, mescaline and dimethyltryptamine
exerted an influence on his shift to experimentalism in the early 1960s, which sought
to replicate the experience of these altered states of consciousness. That this is so is
evident from a study of two collections of correspondence - Burroughs’ letters to
Ginsberg held at Columbia University Library and his letters to Brion Gysin in the
William S. Burroughs Papers held at the New York Public Library. My reading of
these letters forms an important component of my argument, working to reveal what
the conventional ‘published’ Burroughs serves to conceal.Arts and Humanities research Board.
Queen Mary University of London English Department
funding naked Lunch @ 50 conference in Pari
Long-term dominance of Mycobacterium tuberculosis Uganda family in peri-urban Kampala-Uganda is not associated with cavitary disease
No full textPrevious studies have shown that Mycobacterium tuberculosis (MTB) Uganda family, a sub-lineage of the MTB Lineage 4, is the main cause of tuberculosis (TB) in Uganda. Using a well characterized patient population, this study sought to determine whether there are clinical and patient characteristics associated with the success of the MTB Uganda family in Kampala.; A total of 1,746 MTB clinical isolates collected from1992-2009 in a household contact study were genotyped. Genotyping was performed using Single Nucleotide Polymorphic (SNP) markers specific for the MTB Uganda family, other Lineage 4 strains, and Lineage 3, respectively. Out of 1,746 isolates, 1,213 were from patients with detailed clinical data. These data were used to seek associations between MTB lineage/sub-lineage and patient phenotypes.; Three MTB lineages were found to dominate the MTB population in Kampala during the last two decades. Overall, MTB Uganda accounted for 63% (1,092/1,746) of all cases, followed by other Lineage 4 strains accounting for 22% (394/1,746), and Lineage 3 for 11% (187/1,746) of cases, respectively. Seventy-three (4 %) strains remained unclassified. Our longitudinal data showed that MTB Uganda family occurred at the highest frequency during the whole study period, followed by other Lineage 4 strains and Lineage 3. To explore whether the long-term success of MTB Uganda family was due to increased virulence, we used cavitary disease as a proxy, as this form of TB is the most transmissible. Multivariate analysis revealed that even though cavitary disease was associated with known risk factors such as smoking (adjusted odds ratio (aOR) 4.8, 95% confidence interval (CI) 3.33-6.84) and low income (aOR 2.1, 95% CI 1.47-3.01), no association was found between MTB lineage and cavitary TB.; The MTB Uganda family has been dominating in Kampala for the last 18 years, but this long-term success is not due to increased virulence as defined by cavitary disease
