232 research outputs found
The hydrocyclone for separating light dispersions
No full textVarious new hydrocyclone designs developed by the author for
separating light dispersions from heavier carrying fluids are demonstrated and
their relative efficiencies compared using dispersions of plastic powders in water
and suitable non-dimensional equivalence relations. Detailed measurements of
the flow structure with in these hydrocyclones that have aided design work are also
discussed.
The mixture entering the cylindrical hydrocyclone body
tangentially generates a vortex and due to the centrifugal acceleration in this
vortex the less dense particles migrate towards the axis forming a core. This is
then removed through an axially placed outlet in the upstream end wall of the hydrocyclone
with 5-10% of the total through flow while the remaining particle depleted stream
passes out of the downstream end.
The work investigates the effects upon hydrocyclone
performance of changes in total flow rate, mode of operation, and geometry by
comparing particle concentrations in influent and effluent and the probability
of separation of individual particles, which is calculated from input and
output drop size spectra. From a flow of 60 L/min through an efficient
hydrocyclone of diameter 30 mm with a total head loss of 3.2 bar, it is found
that for particles with a relative differential density of 0.1 in water at 50°C,
99% at 50 µm are separated while 80% are separated at 17 µm and 50% separation
occurs at less than 10 µm.
Measurements of the flow structure within the hydrocyclones
have been made using a Laser Doppler Anemometer and from radial profiles of
axial and tangential velocities particle trajectories have been calculated.
With the application of the hydrocyclone for use with other
mixtures and dispersions in mind, an equivalence relation dependent upon
hydrocyclone Reynolds number is employed by which hydrocyclone performance may
be predicted from standard experimental results. The validity of this
relationship is demonstrated by comparing results from similar geometry
hydrocyclones over a range of sizes with different dispersions and changes in
medium viscosity by using water at various temperatures.</p
Measurement of the wave pattern resistance of asymmetric hull forms by the longitudinal cut method
No full textA critical edition of Derek Walcott's Omeros
No full textThe thesis is a Critical Edition of Derek Walcott’s Omeros, consisting of a Critical
Introduction and Annotations. The Critical Introduction analyses:
- Narrative
- Settings
- Metaphor and Paronomasia
- Symbolism
- Historiography
- Intertexts
- Dualism
- Autobiography
- Dialects
- Prosody.
The Annotations comment on more than 1000 references that may be obscure and on
specifics of narrative, language and prosody.
This study presents new conclusions about some aspects of Omeros:
- It challenges the prevailing view that the work is written substantially in a
variation of terza rima and shows that regular quatrains predominate.
- It demonstrates ways in which the metrics follow the sense of the narrative and
takes a more balanced position on the use of Caribbean as opposed to classical
metrics than that put forward previously.
- It identifies a paragraphic structure to the verse.
- It proposes a new prosodic structure for the significant Chapter XXX/iii.
- It extends Walcott’s recognised use of numerology into word counting the
names of characters.
- It develops the idea of Walcott’s dualism and his use of pairing and
contradiction as a dialectical method.
- It defines his wide use of paronomasia and shows that many of the puns have a
metaphorical aspect beyond mere word-play.
- It analyses some of Walcott’s symbolism.
- It identifies intertextual links to his earlier works and to some thirty other
writers, and suggests homage to Hemingway and possibly Heaney.
- It provides the first complete analysis of Walcott’s rhyme types in Omeros.
In its analysis of Omeros and in the Annotations it has included commentary from
across the critical literature, to provide some sense of other views on Walcott’s
writing, and has included as many as possible of Walcott’s own comments on Omeros
and on the writer’s task, as a background to understanding the poem
Introduction
No full textThis is the substantive introduction to 'Writing Talk: interviews with writers about the creative process'. It investigates the role of writer-interview in further examining aspects of the writing process. It including the following sections: 'On these writers'; 'The virtue of interview'; 'On the creative process'; 'Uncertainty and the necessity of not knowing'; 'Image before word'; 'The author is dead, but what of the writer?' This introduction is written by the book's editor and interviewer. The interviewed writers are: Alan Ayckbourn, Iain Banks, Helen Blakeman, Louis de Bernières, Sarah Butler, Andrew Cowan, Jenny Diski, Patricia Duncker, David Edgar, Tanika Gupta, Richard Holmes, Hanif Kureishi, Bryony Lavery, Toby Litt, Kareem Mortimer, Michèle Roberts, Jane Rogers, Willy Russell and Sally Wainwright
Voices of inheritance : aspects of British film and television in the 1980s and 1990s
No full textDuring the 1990s the notion of the heritage film has become a taken for granted
category of British cinema. Rather than dispute the merits of particular films that lie
within this genre I question the construction of the relation between the idea of
heritage and contemporary British film and television. Using the critical literature
established by the contending cultural histories that address the rise of heritage in
British culture, I highlight other, frequently personal and national engagements with
inherited pasts. The concentration upon inheritance lends a greater emphasis to
what is passed on from the past and endures in the present.
The modes of articulating these inherited pasts are formally distinctive and
constructed out of the vocabulary of documentary and fiction. The corpus of texts
begins with the apparently radical avant garde film-making of Derek Jannan and
moves through the work of the Black Audio Film Collective to the apparently
conservative television documentaries of Alan Bennett. These key voices are then
situated in relation to the hegemonic definition of heritage and current debates
concerning British film and television. The persisting opposition which defined
British cinema during the 1980s posits an unofficial cinema characterized by dissent
and urban decay against an official cinema represented by the heritage film. My
corpus of texts challenges this opposition. The different engagements with inherited
pasts take place from different speaking positions and represent a diminishing
publicly funded tradition of film and television production. The range of positions
from margins to centre reveal that there was a contestation of the cultural sources
which are aggregated into the construction of heritage during the 1980s and 1990s
Touching Freud's dog: H.D.'s tactile poetics
No full text"Do not touch me", Frau Emmy warns Freud in 1889. "Do not touch", Freud echoes in 1933. This time, he is referring to his pet chow, Yofi, warning H.D. that "she snaps - she is very difficult with strangers". Examining the prohibition in light of work by Jacques Derrida and Jean-Luc Nancy, this article charts the withdrawal that always interrupts touch. Despite Freud's taboo, however, H.D.'s writing seeks to make contact in strange and unnerving ways. Developing Julia Kristeva's account of the semiotic, this paper proposes a literature of touch. Reading H.D.'s poems, alongside Tribute to Freud, and her letters, the author demonstrates that H.D.'s poetics are always haunted by the very (im)possibility of contact
Writing and the rights of reality: usurpation and potentiality in Derrida, Plato, Nietzsche, and Beckett
No full textThe thesis critically evaluates Jacques Derrida's conferral of the rights of reality on writing, focussing on his theory of an arche-text in light of the speculative nature of this theory. The theory is initially considered in the context of Derrida's elucidation of the usurpatory status of writing within the Platonic and Nietzschean texts. This consideration reveals an admission of writing's usurpatory status by both writers while at the same time demonstrating their awareness of the intrinsically speculative nature of this view, the significance of writing lying in its ability to exteriorise the radically indeterminate status of consciousness m relation to reality rather than its ability to displace consciousness or reality The analyses, therefore, not only bring the Derridean hypothesis of a repressive or phonocentric metaphysical episteme into question but also exhibit the historical and philosophical role of potentiality in relation to writing, writing's ultimate significance lying in its capacity to exteriorise our existence as a mode of potentiality. Accordingly, in the second half of the thesis the Derridean theory of writing is countered with a specifically Aristotelian theory of the text as it is exhibited in the prose of Samuel Beckett, an author whose significance lies in his close alignment with Derridean theory within contemporary criticism. It is demonstrated that this identification has obviated an awareness of the significance of potentiality within the Beckettian text, his work consequently being appraised in the previously neglected context of Aristotelian metaphysics
Spontaneous music : the first generation British free improvisers
No full textThe British free improvisation scene originated in London and Sheffield during the
mid 1960s. In groups such as AMM, the Spontaneous Music Ensemble and Joseph
Holbrooke, a distinctive and ambitious musicality developed that still occupies most
of its protagonists forty years later.
Marked stylistic contrasts developed within the genre, notably the `atomistic' and
`laminar' methods of interaction. Nonetheless, a consistency of principle and practice
was also apparent that defined British free improvisation as unique. In some respects
the genre resembled its German, Dutch and American counterparts, and also the jazz
and classical avant-gardes that had inspired them. Both conceptually and practically,
however, clear differences remained.
The British free improvisers refined a method and an aesthetic of musical creativity,
which suggested an intimate perspective and a detailed analysis of that which we
accept as `music'. Its techniques and results were unconventional, but remained
consistent with music's defining concepts and experiences. As such, British free
improvisation suggested a more inclusive model of musicality than is common, and
implied a broad critique of the cultural values that define `music' at all. Though the
free improvisers themselves did not explicitly state the connection, their work may be
viewed in the context of Deconstruction: the post-structuralist analytical strategy
associated with philosopher Jacques Derrida.
British free improvisation culminated from innovations within the twentieth century
avant-garde. Referencing styles such as atonality and free jazz, it challenged the
aesthetic, technical and hierarchical standards of Western tradition in a form that was
striking and extreme, but also of logical development and focus. Free improvisation
owed explicit debt to a variety of other musics; its most singular achievement
however, was the redefinition of `rhythm' by which it disguised this fact.
The music of the first generation British free improvisers is reliant upon precise
conceptual and practical execution. But though this has enabled the genre to be
musically innovative, in the long term it has also become a logical problem. With
British free improvisation as its subject, the scrutiny of Deconstruction reveals
significant discrepancies between what `free improvisation' implies and what it
actually represents
Discursive myths in derek walcott's omeros: A postcolonial analysis
No full textThe key elements of post-colonial English Literature include the subversion of Western cultural hegemony and the dislocation of marginalized characters and themes of colonial era. The post-colonial literature deconstructs images and legends, which have existed within the collective consciousness of Western culture from the myths to the present, historically, socially and culturally. Thus, it is significant to study examples of post-colonial literature within the contemporary English writings in order to interpret the cultural conflict between the old colonies and Western culture within the contemporary cultural atmosphere. For, it is only this way that the dilemma and imitation of individuals stuck between their own culture and that of the colonizer will be understood. Accordingly, this study examines concepts of the identity, alienation to the cultural roots, imitation, dilemma, historical and cultural change, linguistic hybridization, myths and anti-imperialism in the epic poem named Omeros by Caribbean-English author and poet Derek Wallcott. In this work, Walcottt initially transforms the point of view of the colonizer by changing the old Greek myths, and reflects the point of view of the colonized through the deconstructed myths. Furthermore, by identifying the touristic travels in colonized lands with mythic invasions through the deconstructed myths, he makes allusions to the colonialism. Thanks to this epic poem, he underlines the fact that the island has alienated from its own cultural roots to a great extent and its cultural appearance has gained a similar identity with any other place in the world.Sömürgecilik sonrası İngiliz edebiyatının temel öğeleri arasında batı kültürel egemenliğinin tersine çevrilmesi ve sömürgecilik döneminin ötekileştirilmiş karakterlerinin ve temalarının yer değiştirmesi bulunmaktadır. Tarihsel, sosyal ve kültürel olarak sömürgecilik sonrası edebiyat mitlerden günümüze batı kültürünün ortak bilinçaltında yer alan imgeleri ve efsaneleri yapısökümüne uğratmaktadır Bu nedenle, çağdaş İngiliz yazını içinde sömürgecilik sonrası edebiyatın örneklerini çalışmak, eski sömürgelerle batı kültürü arasındaki kültürel çatışmayı, günümüzün kültürel ortamı içerisinde yorumlayabilmek açısından önem taşımaktadır. Kendi kültürü ile sömürgecinin kültürü arasında sıkışmış olan bireylerin ikilemi ve öykünmeciliği ancak böyle anlaşılabilmektedir. Dolayısıyla, bu çalışmada Karayip kökenli İngiliz yazar ve şair Derek Wallcott’un Omeros adlı epik şiirinde kimlik, kültürel kökenlerden uzaklaşma, öykünme, ikilem, tarihsel ve kültürel değişim, dilde melezleşme, mitler ve antiemperyalizm kavramları incelenecektir. Bu eserde Wallcott öncelikle eski Yunan mitlerini değişikliklere uğratarak, sömürgecinin bakış açısını dönüştürüp, değişime uğrayan mitler üzerinden sömürülenin bakış açısını yansıtmaktadır. Değişime uğrayan bu mitler üzerinden de sömürge topraklarındaki turistik gezileri, mitik işgallerle özdeşleştirerek, tarihsel olarak sömürgeciliğe göndermeler yapmaktadır. Bu epik şiir aracılığıyla adanın kültürel kökenlerinden ne kadar uzaklaştığını, kültürel görünümünün dünyanın her hangi bir yeriyle özdeşlik kazandığını vurgulamaktadır
Yugoslavia - How redistribution hurts productivity in a socialist economy
No full textSocialism as practiced in Eastern Europe is characterized by massive income redistribution. This paper focuses on: (a) interfirm redistribution, consisting of taxing profitable firms in order to subsidize unprofitable ones; and (b) intrafirm redistribution, consisting of the compression of personal income differentials within a firm. The author constructs a theoretical model of redistribution of income as practiced in Yugoslav firms. Empirical results lead to the conclusions that efficiency in production could be improved at no cost if such redistribution were abolished. Furthermore, economies in which much of the GNP is redistributed through bargaining are also bound to be inefficient in distribution because some groups are less able to represent their common interests than others. Contrary to a common belief, socialist countries can not be praised on the count of equity either. This paper presents the estimating framework and the results of the empirical analysis obtained on the basis of a sample of Slovenian enterprises and a brief discussion of policy implications concludes the paper.Environmental Economics&Policies,Economic Theory&Research,Inequality,Health Economics&Finance,Work&Working Conditions
- …
