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International Telemetering Conference Proceedings / October 18-21, 2004 / Town & Country Resort, San Diego, California / The Compact Kinetic Energy Missile (CKEM) is currently being developed as the Army’s newest hypervelocity anti-tank missile. The project has recently transitioned from the Science and Technology Objective phase to the Advanced Technology Demonstration phase. Science and technology phase flight testing required the development of a miniature telemetry system for measuring the super sonic flight dynamics of the airframe, as well as, monitoring of the on board flight computer. Design challenges included a small mechanical envelope, limited power budget, numerous analog measurements, computer serial stream processing, and harsh launch and flight dynamics. Two versions of the system were developed in support of the partnership effort between the Army Missile Research, Development, and Engineering Center (AMRDEC) and industry. This paper will focus on the successful design, development, and flight tests of the CKEM telemetry system.

A Computed Tomographic Imaging Spectrometer (CTIS) is an imaging spectrometer which can acquire a hyper-spectral data set in a single snapshot (one focal plane array integration time) with no moving parts. A specially designed dispersing element, which separates light from the three-dimensional object cube into a grid of two-dimensional prismatic diffraction orders, is the key element in the instrument. The capabilities of the CTIS instrument can be improved by employing a more optimized grating design.There were two main goals to this research: (1) to design a novel CTIS disperser that will improve CTIS capabilities over the previous 5x5 disperser and (2) to integrate the new disperser into the CTIS and evaluate its performance compared to the 5x5 disperser. Six new disperser ideas were evaluated based on their performance in a number of computer simulations to determine the most optimal dispersion pattern. A new CTIS disperser incorporating a novel radial design pattern was developed and tested. Reconstruction results of various spatial and spectral targets are presented. Capabilities of the new CTIS instrument incorporating the radial grating are compared to the previous instrument employing a 5x5 disperser. While both dispersers perform similarly for point-source objects, the radial grating performs better than the previous disperser for extended sources.

ABSTRACT For a variety of wireless sensor network applications, sensor nodes may find their received signal strengths dominated by small-scale propagation effects. Particularly impacted are applications designed to monitor structural health and environmental conditions in metal cavities such as aircraft, busses, and shipping containers. Small changes in each sensor’s position or carrier frequency can cause large variations in this received signal strength, thereby compromising link connectivity. We leverage a technique called Wireless Sensors Sensing Wireless (WSSW) in which wireless sensors act as scalar network analyzers in order to characterize their own environment. WSSW data can enable sensors to react to particularly bad fading, such as hyper-Rayleigh, by switching to a good channel or by implementing other mitigation techniques, such as utilizing a diversity antenna. In this work, the WSSW concept has been extended to accommodate mesh networks and include a spectrum analysis capability for recognizing potentially interfering wireless activity. The test of mitigation techniques is often problematic since application sites are far from controlled environments and are often difficult to access. To address this problem, we have developed a Compact Reconfigurable Channel Emulator (CRCE) to create a laboratory environment that is configurable to a variety of repeatable fading scenarios. With the CRCE, fading characteristics found at a specific wireless sensor network location may be replicated inside the chamber to discover the connectivity capabilities of the sensors and the effectiveness of diversity schemes (e.g., channel switching or multi-element antenna arrays).

Ce travail a été effectué dans le cadre du projet Rem3D® dans lequel participent plusieurs entreprises avec l'objectif de développer un logiciel d'injection en 3D par éléments finis. L'objectif est de développer une méthode numérique pour modéliser le comportement viscoélastique des polymères de l'état solide à l'état liquide à travers une approche multiphasique qui est largement utilisé pour traiter le problème de l'interaction fluide-structure (IFS). La philosophie est d'utiliser une formulation mixte de trois champs (u, v, p) (déplacement, vitesse, pression), où u et v représentent les principales variables de déformation et de vitesse de déformation. Nous sommes amenés au problème de Navier-Stokes compressibles avec l'extra-contrainte, qui est résolu en utilisant la méthode des éléments finis mixte. Le présent travail contribue aussi certains éléments de stabilisation pour la simulation numérique des problèmes multiphasiques par l'approche monolithique.Comparaison entre la littérature et l'expérience est accompli par la validation du cas élastique et cas modèle viscoélastique de Kelvin-Voigt dans le lagrangien approche ainsi qu'eulérien approche. L'extension de la méthodologie au modèle visco-hyper-élastique est débuté par la modélisation et la validation au point matériel, puis l'implémentation dans la bibliothèque des éléments finis CimLib®. Enfin, un schéma stabilisation de résolution du type EVSS est adopté pour le modèle viscoélastique de Kelvin-Voigt, le modèle visco-hyper-élastique de Néo-Hookean, et aussi le modèle visco-hyper-élastique qui propose une prometteuse porte ouverte dans la simulation et modélisation, non seulement pour la viscoélasticité, mais aussi pour les applications dynamique complexes. / This work concerns the simulation of viscoelastic behavior of polymer at different states. Viscoelastic modeling of polymer was performed from the solid state to the liquid state via a multiphase approach which is largely used to deal with the fluid structure interaction. To ensure the appreciation of the FSI, viscoelasticity is considered in two parts: an elastic one and viscous other where the main idea is to use a mixed formulation in three fields (u, v, p) (displacement, velocity, pressure), with u and v, represented the primary variables of a strain and a strain rate formulation. We are led to the Navier-Stokes compressible problem with extra-stress, which is solved by using the Mixed Finite Element. The present work contributes some stabilization elements to the numerical simulation of multiphase problem by the monolithic approach.Comparison between the literature and experiments was performed through the validation of an elastic case and the viscoelastic Kelvin-Voigt model in the context of Lagrangian framework as well as Eulerian framework. The extension of the methodology to a visco-hyper-elastic is given through the modeling and validation on material point on the finite elements library CimLib®. Finally, a stabilization scheme of the EVSS type is adopted for viscoelastic Kelvin-Voigt model, hyper-elastic Neo-Hookean model, and also visco-hyper-elastic model which proposed an open door in computational modeling, not only with viscoelasticity but also complex dynamic application.

A presente dissertação é um aprofundamento teórico no campo da moda e do consumo, no qual, teve como proposta fundamental uma análise histórica em termos culturais, sociológicos, psicológicos e filosóficos, do consumo do final do século XIX (pós-revolução industrial) até os dias atuais, com ênfase no modo de como o ato da compra foi gradualmente se desvinculando de necessidades materiais, funcionais e de distinção social, passando a assumir um teor de hiperconsumo hedonista, assim como suas consequências. O desenvolvimento do trabalho se deu a partir de uma pesquisa qualitativa baseada em revisão bibliográfica centrada, sobretudo em três autores atentos ao fenômeno do consumo, são eles: Gilles Lipovetsky, Zygmunt Bauman, e Colin Campbell. A investigação esclareceu que a história do consumo, sobretudo a de moda, teve grande influência para o desenvolvimento do atual hiperconsumo, seja por meio da evolução da indústria com o fordismo e com a produção em massa, seja com o desenvolvimento dos mercados e do consumo de massa, por meio das lojas de departamentos ou das estratégias de publicidade e marketing, que atrelaram características de sedução em busca de desejos. Assim como, este trabalho concluiu que o atual panorama de hiperconsumo tem grande influência na individualidade do consumidor contemporâneo, que busca através do consumo o prazer e a felicidade, mas que de certa forma isso é mais atrelado às imaginações e devaneios dos sujeitos do que na compra em si, logo, o lado hedonista do bem de consumo chega ao fim muito rapidamente, após sua aquisição ou no seu descarte, o que resultará em frustrações e em um ciclo que é operado com base na lógica do desejo, aquisição, desilusão, desejo. A pesquisa pôde ainda evidenciar que os consumidores, além de buscarem o prazer na compra, buscam em sua maioria a sua criação ou a recriação da identidade, já que a própria sociedade em sua superabundância de produtos, serviços e entretenimento permite essa transitoriedade e fluidez / The purpose of this dissertation is to investigate through theory the fashion and consumption field based on a cultural, sociological, psychological and philosophical historical analysis of consumption in the late 19th century (post-industrial revolution) until today. The emphasis focuses on how the act of purchase has gradually detached from the material, functional and socially distinctive needs, thereby assuming a level of hedonist hyper-consumption, as well as its consequences. The development of this paper was based on qualitative research of a specific bibliographic revision, principally on three authors who focused on consumption, namely: Gilles Lipovetsky, Zygmunt Bauman, and Colin Campbell. The investigation brought into focus that the history of consumption, especially of fashion, highly influenced the development of the hyper-consumption currently perceived, whether by industrial evolution including Fordism and mass production or through the development of mass consumption markets, through department stores or publicity and advertisement strategies, which have linked characteristics of seduction in the pursuit of pleasure. This paper also shows that the current hyper-consumption overview is highly influenced by the contemporary consumer that seeks for pleasure and happiness through consumption, but somehow it is mostly tied to the imagination and divagations of individuals than to the actual purchase; therefore, the hedonist perspective of the consumer good quickly comes to an end, right after its acquisition or disposal, which may cause frustration and feed a cycle developed on the basis of desire, acquisition, disillusion and back to desire. Additionally, the research evidences that consumers have sought for pleasure through purchase, in addition to create or recreate identity, considering that society and its superabundance of products, services and entertainment allows such transience and fluidity

La technologie de fabrication additive a été identifiée comme l'une des innovations numériques majeures qui a révolutionné non seulement le domaine de l'industrie, mais aussi celui de la construction. D'un point de vue de recherche, la fabrication additive reste un sujet d’actualité. C’est un procédé automatisé de dépôt de matériaux couche par couche afin d'imprimer des maisons ou des structures de petites dimensions pour un montage sur site. Dans la fabrication additive, l'étape de dépôt des matériaux est généralement suivie d'une étape de contrôle de la qualité d'impression. Cependant, le contrôle de qualité des objets imprimés ayant des surfaces funiculaires est parfois complexe à réaliser avec des robots rigides, ne pouvant atteindre des zones mortes. Dans cette thèse, un manipulateur souple et hyper-redondant a été modélisé et commandé cinématiquement, placé comme un effecteur d'un manipulateur rigide et mobile, afin d'effectuer une inspection des structures imprimées par des techniques de la fabrication additive. En effet, les manipulateurs souples peuvent fléchir et du coup suivre la forme géométrique de surfaces funiculaires. Ainsi, une approche hybride a été proposée pour modéliser la cinématique du robot souple et hyper-redondant, combinant une approche analytique pour la génération des équations cinématiques et une méthode qualitative à base des réseaux de neurones pour la résolution de ces dernières. Les performances de l'approche proposée sont validées à travers des expériences réalisées sur le robot "compact bionic handling arm" (cbha). / Additive manufacturing technology has been identified as one of the major digital innovations that has revolutionized not only industry, but also building. From a research point of view, additive manufacturing remains a very relevant topic. It is an automated process for depositing materials layer by layer to print houses or small structures for on-site assembly. In additive manufacturing processes, the deposition of materials is generally followed by a printing quality control step. However, the geometry of structures printed with funicular surfaces is sometimes complex, as robots with rigid structures cannot reach certain areas of the structure to be inspected. In this thesis, a flexible and highly redundant manipulator equipped with a camera is attached to the end-effector of a mobile manipulator robot for the quality inspection process of the printed structures. Indeed, soft manipulators can bend along their surounded 3D objects; and this inherent flexibility makes them suitable for navigation in crowded environments. As the number of controlled actuators is greater than the dimension of the workspace, this thesis can be summarized as a trajectory tracking of hyper-redundant robots. In this thesis, a hybrid approach that combines the advantages of model-based approaches and learning-based approaches is developed to model and solve the kinematics of soft and hyper-redundant manipulators. The principle is to develop mathematical models with reasonable assumptions, and to improve their accuracy through learning processes. The performance of the proposed approach is validated by performing a series of simulations and experiments applied to the compact bionic handling arm (cbha) robot.

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Purpose: Hyper-reflective superficial cells were an unexpected finding while examining the corneal epithelium using confocal microscopy (CM), during an MSc thesis conducted in 2006 at the University of Waterloo, Canada. The author1 suggested that the appearance of these hyper-reflective cells could be associated with solution induced corneal staining (SICS) that was also observed in those participants who had manifested these hyper-reflective cells. However, this hypothesis has not been reported in the literature. This thesis aimed to investigate variables that could possibly predict the appearance of hyper-reflective superficial cells. These investigated variables were the effect of: contact lenses, contact lens solutions, lens/solution combinations, long-term use of certain contact lenses and solutions, age, dry eye symptom, topical anaesthetics and sodium fluorescein. In addition to this, the normal superficial epithelium of controls was defined. Methods: CM images of the superficial epithelium were obtained during the various experiments from: 32 non-contact lens wearing participants, 18 post-menopausal participants symptomatic of dry eye and 18 post-menopausal age-matched asymptomatic women and 147 adapted soft contact lens wearers. For one experiment CM was performed with the contact lens in situ, making the use of a topical anaesthetic unnecessary. Superficial cellular appearance of CM images was graded using a custom grading scale. Hyper-reflective cells were counted. Corneal staining was assessed using sodium fluorescein. Results: Results obtained during the various experiments revealed that hyper-reflective cells predominately appeared with the use of a specific lens/solution combination. Also, the number of hyper-reflective cells peaked after two hours of lens wear. It was also shown that when hyper-reflective cells occurred during an experiment, not every participant who was exposed to that specific lens/solution combination manifested hyper-reflective cells. Also, a great deal of inter-subject variability in observed numbers of hyper-reflective cells was noted. Conclusion: In conclusion, this thesis established that the hyper-reflective cells that were observed by Harvey were reproducible and may co-occur with corneal staining induced by a specific lens/solution interaction

Inom utvecklingen av de flesta typer av datorsystem används datormodeller för att strukturera lagringen och användningen av data. Likaså finns det flera olika datamodelleringsmetoder att välja bland för detta ändamål. I samarbete med ett företag har en fallstudie genomförts med syfte att undersöka hur agiliteten i två av dessa metoder påverkar utvecklingen av ett Data Warehouse (DW).  De två datamodelleringsmetoder som undersökts är Data Vaulting och Hyper Agility och arbetet har fokuserat på att undersöka skillnaderna mellan dessa när det gäller mängden ETL-kod som måste skrivas, funktionaliteten i datatransformationerna, möjligheten till att uppdatera systemstrukturen samt den totala kostnaden för utvecklingen av DW-lösningen. Inom ramen för fallstudien har en litteraturstudie genomförts och kombinerats med material från sex intervjuer, där respondenterna varit konsulter såväl som företagsrepresentanter.   Resultaten av fallstudien visar att respektive metods agilitet har en stor påverkan på den kod som utvecklas. Ju högre agilitet metoden har desto mindre kod, tid och andra resurser som krävs. Dock medför även en förhöjd agilitet större komplexitet samt eventuell risk för ett misslyckat utvecklingsprojekt.