Denna rapport visar hur en reklamfilm för en specifik produkt har utvecklats, i form av en CD-ROM-produktion. Företaget Alding AB har efterfrågat reklamfilmen för sin produkt Alding Webshop Maker 1.3. Flera olika programvaror har använts vid genomförandet, varav ljudredigeringsprogrammet Sonic Foundry Sound Forge 5.0 och bildredigeringsprogrammet Adobe Photoshop 5.5 hör till de mest frekvent använda. Med hjälp av programmet Macromedia Director 7.0 har sammanställningen av reklamfilmen utförts. Rapporten behandlar de olika problem som uppstått under arbetets gång samt hur de har kunnat undanröjas. Efter färdigställandet av CD-ROM-produktionen började Alding AB att använda den. På detta sätt fick de ytterligare en kanal varigenom de kan sprida information om Alding Webshop Maker 1.3. Den enkla och informativa reklamfilmen gör att presumtiva kunder får upp ögonen för produkten.

Denna rapport beskriver utvecklingen av examensarbetet som utfördes på uppdrag av BrandEx Brandtätningar AB. Ett företag som brandskyddar byggnader, fartyg, oljeplattformar med mera. En officiell webbsida och en CD-ROM-produktion skapades åt företaget. Webbsidan konstruerades i webbredigeringsprogrammet Macromedia Dreamweaver 4 och CD-ROM-produktionen i multimedieprogrammet Macromedia Director 7. Det använda materialet innehöll bilder och PDF-filer som BrandEx hade i sitt arkiv, men mycket nytt skapades, exempelvis animeringar och egna musikstycken. Webbsidan gjordes enligt önskemål från BrandEx med en enkel ochstilren design. CD-ROM-produktionen skapades under friare förhållanden med avseende på innehåll och design. Innehållet blandades med animeringar, en videofilm, bilder, text, ljud och musik. Både webbsidan och CD-ROM-produktionen gjordes mer som produktionsmallar åt BrandEx. De skall själva kunna uppdatera dessa med ny information. BrandEx kommer att ge ut CD:n till kunder och andra intressenter som vill veta mer om företaget och om brandskydd. Den skall distribueras kostnadsfritt. Webbsidan kommer att vara den centrala informationsplatsen för BrandEx i Sverige. / This report describes the process of the examination work that was made after an offer from BrandEx Brandtätningar AB. A company that fireprotects buildings, ships, oil platforms and so on. An official web site and a CD-ROM-production were created for the company. The web site was constructed in the web editing software Macromedia Dreamweaver 4 and the CD-ROM-production in the authoring tool for multimedia production Macromedia Director 7. The used material contained pictures and PDF-files from BrandEx archives, but lot of new material was created, for instance animations and own music tracks. The web site was made according to the wishes from BrandEx in a simple and pure design style. The CD-ROM-production was created under rather free conditions concerning content and design. The content was mixed with animations, a video, pictures, text, sounds and music. Both the web site and the CD-ROM-production were made more like production templates for BrandEx. They will be able to update with new information by themselves. BrandEx will issue the CD to customers and other partners that want to know more about the company and about fireprotections. It will be freely distributed. The web site will be the central place of information for BrandEx in Sweden.

This thesis presents a robust nonlinear model predictive controller (RNMPC), nominal nonlinear model predictive controller (NMPC) and single-loop proportional-integral-derivative (PID) controllers that are applied to a nonlinear model of a run-of-mine (ROM) ore milling circuit. The model consists of nonlinear modules for the individual process units of the milling circuit (such as the mill, sump and cyclone), which allow arbitrary milling circuit configurations to be modelled easily. This study aims to cast a complex problem of a ROM ore milling circuit into an RNMPC framework without losing the flexibility of the modularised nonlinear model and implement the RNMPC using open-source software modules. The three controllers are compared in a simulations study to determine the performance of the controllers subject to severe disturbances and model parameter variations. The disturbances include changes to the feed ore hardness, changes in the feed ore size distributions and spillage water being added to the sump. The simulations show that the RNMPC and NMPC perform better than the PID controllers with regard to the economic objectives, assuming full-state feedback is available, especially when actuator constraints become active. The execution time of the RNMPC, however, is much too long for real-time implementation and would require further research to improve the efficiency of the implementation. / Thesis (PhD)--University of Pretoria, 2009. / Electrical, Electronic and Computer Engineering / unrestricted

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<div>This dissertation is devoted to developing a first-of-a-kind uncertainty characterization framework (UCF) providing comprehensive, efficient and scientifically defendable methodologies for uncertainty characterization (UC) in best-estimate (BE) reactor physics simulations. The UCF is designed with primary application to CANDU neutronics calculations, but could also be applied to other thermal-spectrum reactor systems. The overarching goal of the UCF is to propagate and prioritize all sources of uncertainties, including those originating from nuclear data uncertainties, modeling assumptions, and other approximations, in order to reliably use the results of BE simulations in the various aspects of reactor design, operation, and safety. The scope of this UCF is to propagate nuclear data uncertainties from the multi-group format, representing the input to lattice physics calculations, to the few-group format, representing the input to nodal diffusion-based core simulators and quantify the uncertainties in reactor core attributes.</div><div>The main contribution of this dissertation addresses two major challenges in current uncertainty analysis approaches. The first is the feasibility of the UCF due to the complex nature of nuclear reactor simulation and computational burden of conventional uncertainty quantification (UQ) methods. The second goal is to assess the impact of other sources of uncertainties that are typically ignored in the course of propagating nuclear data uncertainties, such as various modeling assumptions and approximations.</div>To deal with the first challenge, this thesis work proposes an integrated UC process employing a number of approaches and algorithms, including the physics-guided coverage mapping (PCM) method in support of model validation, and the reduced order modeling (ROM) techniques as well as the sensitivity analysis (SA) on uncertainty sources, to reduce the dimensionality of uncertainty space at each interface of neutronics calculations. In addition to the efficient techniques to reduce the computational cost, the UCF aims to accomplish four primary functions in uncertainty analysis of neutronics simulations. The first function is to identify all sources of uncertainties, including nuclear data uncertainties, modeling assumptions, numerical approximations and technological parameter uncertainties. Second, the proposed UC process will be able to propagate the identified uncertainties to the responses of interest in core simulation and provide uncertainty quantifications (UQ) analysis for these core attributes. Third, the propagated uncertainties will be mapped to a wide range of reactor core operation conditions. Finally, the fourth function is to prioritize the identified uncertainty sources, i.e., to generate a priority identification and ranking table (PIRT) which sorts the major sources of uncertainties according to the impact on the core attributes’ uncertainties. In the proposed implementation, the nuclear data uncertainties are first propagated from multi-group level through lattice physics calculation to generate few-group parameters uncertainties, described using a vector of mean values and a covariance matrix. Employing an ROM-based compression of the covariance matrix, the few-group uncertainties are then propagated through downstream core simulation in a computationally efficient manner.<div>To explore on the impact of uncertainty sources except for nuclear data uncertainties on the UC process, a number of approximations and assumptions are investigated in this thesis, e.g., modeling assumptions such as resonance treatment, energy group structure, etc., and assumptions associated with the uncertainty analysis itself, e.g., linearity assumption, level of ROM reduction and associated number of degrees of freedom employed. These approximations and assumptions have been employed in the literature of neutronic uncertainty analysis yet without formal verifications. The major argument here is that these assumptions may introduce another source of uncertainty whose magnitude needs to be quantified in tandem with nuclear data uncertainties. In order to assess whether modeling uncertainties have an impact on parameter uncertainties, this dissertation proposes a process to evaluate the influence of various modeling assumptions and approximations and to investigate the interactions between the two major uncertainty sources. To explore this endeavor, the impact of a number of modeling assumptions on core attributes uncertainties is quantified.</div><div>The proposed UC process has first applied to a BWR application, in order to test the uncertainty propagation and prioritization process with the ROM implementation in a wide range of core conditions. Finally, a comprehensive uncertainty library for CANDU uncertainty analysis with NESTLE-C as core simulator is generated compressed uncertainty sources from the proposed UCF. The modeling uncertainties as well as their impact on the parameter uncertainty propagation process are investigated on the CANDU application with the uncertainty library.</div>

Le rapport des Métamorphoses d'Ovide à l'espace est analysé sous les trois angles du concept (espace géométrique), de l'expérience (espace pratique) et des représentations (espace métaphorique). Le mythe cosmogonique, premier récit de l’œuvre, pose la question des frontières entre les éléments, la naissance de l'homme pose celle de leur transgression. Le texte se construit dans une tension dont l'espace est le moteur. Les Métamorphoses proposent un trajet de lecture vers Rome, jalonné d'indices d'une romanisation progressive. L'espace de prédilection du texte est alors l'espace terrestre et sa géographie. Or, cette linéarité n'est qu'illusoire. La crainte d'un retour au chaos initial est forte et l’œuvre se construit autour de l'expression programmatique de la « discors concordia » (1,433). Les êtres qui peuplent le mundus participent de cette tension. Le mythe cosmogonique a posé une ontologie spatiale. Les espaces sont des seuils où se joue l'identité des êtres, dans une ontologie en mouvement qui lie changement d'espace et changement de nature. / The relationship between Ovid's Metamorphoses and the notion of space is analyzed in the three different directions of the concept (geometrical space), of the experience (practical space) and of representations (metaphorical space). The cosmogony, the first tale in the Metamorphoses, poses the question of the boundaries between the elements, while the birth of human beings poses that of their transgression. The text is constructed upon a tension within which space is the driving force. The Metamorphoses offer the reader a journey to Rome punctuated by indications of a progressive romanization. The chosen space of the text thus becomes the terrestrial space and its geography. But this is only an illusory kind of linearity. There is a strong sense of fear of a return to the initial chaos and the book is constructed around the programmatic expression of the «discors concordia» (1,433). The beings who inhabit the mundus take part in this tension. The cosmogony has laid the foundations for a spatial ontology. Spaces are thresholds where the identity of all beings is played out and questioned, in an ontology in movement that unites the transformations of space and nature.

Thesis (M.A) - RAU, 1995 / Refer to document

The purpose of this study was to develop a robust fluid-structure-interaction (FSI) technology that can accurately model non-linear flutter responses for sub- and transonic fluid flow. The Euler equation set governs the fluid domain, which was spatially discretised by a vertex-centred edge-based finite volume method. A dual-timestepping method was employed for the purpose of temporal discretisation. Three upwind schemes were compared in terms of accuracy, efficiency and robustness, viz. Roe, HLLC (Harten-Lax-Van Leer with contact) and AUSM+-up Advection Up-stream Splitting Method). For this purpose, a second order unstructured MUSCL (Monotonic Upstream-centred Scheme for Conservation Laws) scheme, with van Albada limiter, was employed. The non-linear solid domain was resolved by a quadratic modal reduced order model (ROM), which was compared to a semi-analytical and linear modal ROM. The ROM equations were solved by a fourth order Runge-Kutta method. The fluid and solid were strongly coupled in a partitioned fashion with the information being passed at solver sub-iteration level. The developed FSI technology was verified and validated by applying it to test cases found in literature. It was demonstrated that accurate results may be obtained, with the HLLC upwind scheme offering the best balance between accuracy and robustness. Further, the quadratic ROM offered significantly improved accuracy when compared to the linear method. / Dissertation (MEng)--University of Pretoria, 2011. / Mechanical and Aeronautical Engineering / unrestricted

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