12 research outputs found
Proceedings of the Belgian-Dutch IABSE Young Engineers Colloquium 2019:YEC2019
The proceedings contain 35 papers. The topics discussed include: fatigue monitoring of railway bridges by means of virtual sensing; steel-supported glazed atrium roof between two adjacent existing buildings; the Boekelose bridge: an innovative structure; case study of rail-bridge interaction of a large span railway viaduct in riga; probabilistic approach to evaluate fatigue safety status in steel railway bridges; buckling design approach for unstiffened curved plates in uniform shear; finite element modeling of residual welding stresses in an orthotropic steel bridge component; uniformly loaded tensegrity bridge design via morphological indicators method; tensile and shear resistance of bolted connectors in steel-FRP hybrid beams; and parametric analysis of rib distortion induced stress concentration at rib-to-crossbeam joint.</p
Workshop on Lunar Breccias and Soils and Their Meteoritic analogs
Lunar soils and breccia studies are used in studying the evolution of meteorite parent bodies. These studies are compared to lunar soils and breccias
Electromagnetic and thermal modelling for prognosis of distribution transformer
Master's thesis Renewable Energy ENE500 - University of Agder 2018In this thesis numerical modelling of electromagnetics and thermodynamic of a distribution transformer
was studied. The model is based on two 5 MVA three phase distribution transformers located in Uleberg
(Norway) owned by Agder Energi. The results include magnetic flux density in the core, current density,
heat loss density and temperature distribution in the transformer. The maximum temperature of the
transformer operating at full load with cooling fans turned on and ambient temperature 20 C, reached
the expected value based on temperature measurements from the transformers in Uleberg provided by
Agder Energi. The results of the transformer operating at these condition were as a reference for
the other simulations. The transformer model was simulated at different ambient temperatures and
when the cooling fans were turned off. The effect of heat transfer by radiation and uniform current
density were also investigated. The results of temperature of different operating condition were used
to prognose the ageing rate of the transformer's paper insulation.
The measurement data provided by Agder Energi was processed in Excel, and the numerical modelling
was executed in Comsol Multyphysics.
Avances en modelos espacio-estado para el análisis de movimiento y comportamiento animal
La forma en que se mueven los animales es de gran interés en ecología, ya que
afecta a la mayoría de los procesos ecológicos y evolutivos. Analizar estos procesos,
implica estudiar sistemas que varían en el espacio y el tiempo a distintas escalas temporales y con distintos niveles de dependencia. Nuevas tecnologías han revolucionado
la forma de estudiar y monitorear el movimiento de animales, su comportamiento, y
su relación con el medio ambiente, llevando a la necesidad de desarrollar nuevas metodologías estadísticas. Bajo el contexto de modelos espacio-estado (MEE) y utilizando
perspectiva Bayesiana, en esta tesis buscamos dar respuestas a este problema.
Presentamos un MEE que permite describir trayectorias formulando el proceso
de movimiento a tiempo continuo y la observación a tiempo discreto. Usando Modelos
Ocultos de Markov, clasificamos datos temporales de aceleración en distintos comportamientos. Por ´ultimo, consideramos el error de las observaciones ambientales para
describir trayectorias según la selección de recursos disponibles.
Los resultados obtenidos resaltan la importancia de contar con modelos adecuados
que permitan describir e interpretar correctamente estos sistemas y diagramar practicas
de manejo apropiadas. Evidenciamos cómo la escala a la que los animales toman las
decisiones de movimiento debe tenerse en cuenta a la hora de diseñar protocolos de
colecta de datos y, que no siempre es necesario contar con datos de alta frecuencia
para tener buenas estimaciones de ciertos procesos de movimiento. Además mostramos
cómo el efecto del error en las observaciones ambientales puede sesgar las estimaciones
de los análisis llevando a conclusiones erróneasRuiz Suarez, Sofia. Universidad Nacional de Rosario. Facultad de Ciencias Económicas y Estadística; Argentin
Probabilistic Graphical Modelling for Software Product Lines: A Frameweork for Modeling and Reasoning under Uncertainty
This work provides a holistic investigation into the realm of feature modeling within
software product lines. The work presented identifies limitations and challenges within
the current feature modeling approaches. Those limitations include, but not limited to,
the dearth of satisfactory cognitive presentation, inconveniency in scalable systems,
inflexibility in adapting changes, nonexistence of predictability of models behavior, as
well as the lack of probabilistic quantification of model’s implications and decision
support for reasoning under uncertainty. The work in this thesis addresses these
challenges by proposing a series of solutions. The first solution is the construction of a
Bayesian Belief Feature Model, which is a novel modeling approach capable of
quantifying the uncertainty measures in model parameters by a means of incorporating
probabilistic modeling with a conventional modeling approach. The Bayesian Belief
feature model presents a new enhanced feature modeling approach in terms of truth
quantification and visual expressiveness. The second solution takes into consideration
the unclear support for the reasoning under the uncertainty process, and the challenging
constraint satisfaction problem in software product lines. This has been done through the
development of a mathematical reasoner, which was designed to satisfy the model
constraints by considering probability weight for all involved parameters and quantify
the actual implications of the problem constraints. The developed Uncertain Constraint
Satisfaction Problem approach has been tested and validated through a set of designated
experiments.
Profoundly stating, the main contributions of this thesis include the following:
• Develop a framework for probabilistic graphical modeling to build the purported
Bayesian belief feature model.
• Extend the model to enhance visual expressiveness throughout the integration of
colour degree variation; in which the colour varies with respect to the predefined
probabilistic weights.
• Enhance the constraints satisfaction problem by the uncertainty measuring of the
parameters truth assumption.
• Validate the developed approach against different experimental settings to
determine its functionality and performance
Contact lens platforms for ocular health monitoring
As of today, the World Health Organization (WHO) counts millions of cases of preventable blindness every year in high income countries, attributed to the lack of early-stage ophthalmic screening technologies. Contemporary methods rely on bulky and costly equipment exclusively operated by specialized clinicians, resulting in a medical approach based on reaction over prevention. A possible approach results from a literature survey on the tear fluid properties, which revealed its potential to be used as a diagnostic medium. However, existing tear sampling technologies lack practicality, and introduce a high contamination risk of tear samples
Towards a philosophy of theatre inspired by Aristotle’s poetics and post-structuralist aesthetics in relation to three South African plays
I have attempted a reading of Aristotle in terms of mimesis, ethos, mythos, lexis,
hamartia, anagnorisis, peripeteia, catharsis and anamnesis - as an existential “being there” (Dasein) of the characters’ freedom and actual historicity - in three of my
plays in which I performed or witnessed in productions in England, Wales, three
Scandinavian countries, the U.S. and South Africa. I have analysed other Southern
African “womanist” performative drama and feminist theatre. I assume with the
ancient Greeks that in serious theatre there is theoria, an educated, discursive looking,
which involves a dialectics of logos in dianoia intertwined in the mythos – ethical
truth in the discourse of the plot. Whilst aesthetics cannot be reduced to psychobiography, creative writing is motivated in part by the author’s and the dramatic subjects’ psychoanalytically understood personal and political unconscious placed in the ethos – the character on the stage. The aesthetics of tragedy relate to both peripeteia (reversals) and anagnorisis (recognition of responsibility) which occur within an arc of development, crisis and denouement of the vicissitudes of purported wisdom in understanding how performative drama and critical theatre have been
presented in what has become known as The Struggle in a post-apartheid South
Africa and post-colonial Zimbabwe by comparison with historical conditions in South America, India, even China. The values of nous, phronesis and sophia, intuitive,
practical and interpretative wisdom are connected to the Nicomachean and Eudemian
Ethics with which the tragic-comic hero and his Other are imbued or violate. The
post-structuralist aesthetic as developed in the literary theory of the twentieth century
is essentially the interaction of synchronic and diachronic language emerging from
the signifiance and the semiosis of the chora (the feminine or maternal unconscious)
within the de-familarisation techniques of Russian and Czech Formalism. This
provides a creative and meaningful limit to a consciousness of being-white and beingblack-
in-the-world against disempowering Nothingness or perceived Otherness
threatening moral beings. Nothingness and the Other are characterised magically and
as witch-craft in oral-cultures which deny the unconscious and resort to paranoia and
persecution of Otherness in the subject projected onto the other – the “colonial
personality”. Shades of Brown has been re-written as Jannie Veldsman – A Film
8
Scenario and I have incorporated into a revised The Cape Orchard a retrospective
anticipation of the coming of the new South Africa. I reflect on what tragic drama on
the stage and in real life in South Africa means now that the new South Africa is over
its honeymoon period and faces serious problems of failed governance. Within the
dialectic of an enlightened rabbinical morality of Hillel the Elder (“What is hateful to
you do not do to others….” and “If I am not for myself who will be for me…?”) and
Kant’s categorical imperative of human beings as a priori ends, I follow the fortunes
of an old Jewish veteran of The Struggle, dating back to the Defiance Campaign of
1952/3. Fugard’s work is exemplary in fostering a sense of Sartre’s Nothingness and
nihilation which “haunts” Being and is the space of undecidability in relation to my
condition of freedom allowing the transcendence of Being. Being asserts reparation
and redemption in the face of the depressive and paranoid subject/object split in the
subject’s being-in-the-world. Plays ideally submerge this existentialist,
psychoanalytic and Aristotelian dramaturgy in the form of Kierkegaard’s faith and
Nietzsche’s will which are part of the Encompassing in Karl Jasper’s metaphysics -
the residue of a Judaeo-Christian ethics facing the anomie and aporia of the postmodern.
The new South Africa was only ostensibly built on Greek and Judaeo-
Christian secular ethics – “truth and reconciliation”. It inherited state, revolutionary
and criminal violence, as well as a sophisticated economic infrastructure, masspoverty
and a segregated educational, social and welfare system which in the milieu
of ANC incompetence and corruption have for the very poor got worse but to the
benefit of a new African oligarchy, the beneficiaries of a dysfunctional affirmative
action policy. What is to be done? Irigaray’s striking metaphor “the speculum of the
Other woman” suggests that we are reflected by the instrument we use for
investigating what may be Other to us: “we” are westerners trying to live in Africa.
“We” are Other – not as autochthonous as the African majority. But the
autochthonous can also behave as Other and may even fail to recognise the Other in
themselves. Franz Fanon’s “colonial personality”, like ex-president Thabo Mbeki,
misunderstands the colonial Other in himself which, disastrously, he projects and
attacks in the imaginary and persecutory Other, only to suffer the return of the Real,
as do the dramatic fictions Van Tonder in Shades of Brown, Dianne Cupido in The
Cape Orchard and Harry Grossman the old man’s son in The Zulu and the Zeide
(inspired by a short story by Dan Jacobson).
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The Russian and Czech Formalists and Structuralists show us how to foreground the
Real through techniques of de-familiarisation which can be applied to modernist and
post-modernist “womanist” performance drama and feminist theatre. Defamilarisation,
especially in an Africa struggling between failed and successful
colonialism and often ruled by more or less corrupt elites, sensitizes us to a moral
nihilism which characterises the failed African state - described by Conrad as a “heart
of darkness” transcended in aletheia – being oneself in the self-showing light of one’s
ethos operating through a personal and political unconscious mystified in the rhetoric
of oral-cultures. Playwrights such as Yael Farber, Fraser Grace, Aletta Bezuidenhout
and Fatima Dike express a semiosis of the unconscious and the signifiance and
“absurdity” of logos suggesting that all is not lost in post-apartheid Southern Africa as
regards human values, whilst struggling with the political correctness demanded in
The Struggle. A partially successful colonialism in parts of Africa could within a
British education system, produce a Wole Soyinka who transcends the propaganda of
agit-prop by showing the parabolic arc of tragedy afflicted with peripeteia. The
weight of African backwardness is not only the negative heritage of colonialism and
slavery but Africa’s immersion in traditional partially modernised, but still
patriarchal, often tribally and religiously split oral-cultures. These enable the colonial
personality to unconsciously or opportunistically exploit his paranoiac sense of his
victimage at the expense of the writing-cultures of development which entail
anamnesis and the redemption through anagnorisis
T.J.T., Inc. v. Mori Clerk\u27s Record v. 1 Dckt. 35079
https://digitalcommons.law.uidaho.edu/idaho_supreme_court_record_briefs/3052/thumbnail.jp
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Studies in Medieval Irish Legal Ancillary Material
Preserved in medieval Irish manuscripts are a number of legal texts, which generated a broad range of glosses and commentary. Focus has hitherto generally been on the older strata of material and their immediate glossing. This dissertation begins with in-text glossing, and goes beyond the immediate glossing context to consider other forms of what I call legal ancillary material. It is composed of two major parts: etymological glosses; and glossae collectae (independent sets of glosses).
The introduction provides an overview of scholarship thus far on legal ancillary material and sets out the overall aim of this dissertation, which is to examine the purpose, function, and method of the composition and transmission of legal ancillary material. By treating glossarial material as primary sources in their own right, they give an insight into how scribes thought. Questions asked include: how do these glossing methods differ? What was their purpose? Why did scribes consider them relevant? What can they tell us about the way in which legal material was expanded and transmitted?
In the ‘etymological glosses’ part of the dissertation, I demonstrate the previously overlooked significance of etymological glossing in a learning environment. Owing to the vast amount of etymological glossing across medieval Irish law texts, I use a sample group of eight legal texts from TCD H 2. 15A (1316) pp. 17a–42b, 47a–66b. As it is syllabic etymology which has drawn the most attention (negative or otherwise), it is this type which forms the core of this first major part of the dissertation. The main body of the discussion is split into two sections: the first is given to process, in which methodological aspects of first and final syllable etymology are examined in detail. The second looks at the purpose of etymological glosses. A key conclusion to arise from this discussion is the scribes’ preoccupation with preserving the consonant structure of the lemma, while the meaning of the lemma is maintained elsewhere in the same gloss. Such a technique is highly suitable for a learning environment to aid memorisation of legal language, and illustrates how legal material was transmitted in an educative context.
Because very little work has been done on glossae collectae, this part of the dissertation begins by providing a summary of the glossae collectae in CIH. The bulk of this section focuses on two glossae collectae: Aidbriugh glossae collectae (TCD H 3. 18 (1337) pp. 61a–62b) and Adhmad glossae collectae (TCD H 3. 18 (1337) p. 422), for which I provide the text and translation. Both glossae collectae use the same base text (Bretha Nemed Déidenach) and - unlike other glossae collectae in CIH - show very little expansion from other base texts, but individually they represent different stages of development. As a result, they provide a point of comparison in how an ancillary document moves away from its primary textual focus and begins to incorporate material from other sources. Of especial use is that a copy of Bretha Nemed Déidenach exists, so that it is possible to identify how and where the scribes extracted lemmata.
This dissertation has examined two aspects of medieval Irish legal ancillary material: etymological glosses; and glossae collectae. There is a clear pedagogical purpose in both, as learning aids of different methods and application. Skill and creativity in language, engagement with a variety of topics and texts, and a focus on both understanding legal terminology in context and a broader philological interest mark glosses and glossae collectae as the product of well-educated scholars who took an active interest in both the preservation of language and the rendering of the same into a more accessible format