Ellipses: Multi-dimensional filter, fracture, and dilution of a nodalistic body

Este artigo personaliza, reflete, e analisa criticamente a obra Elipses, um projeto pertencente ao concerto de performances chamado Corpo Tele-Sonoro. A produção foi criada, dirigida e realizado por Ivani Santana, sendo essa sua pesquisa de pós-doutorado no Sonic Arts Research Centre (SARC). Certas tensões técnicas e logísticas serão o foco; uma tentativa de conceitualizar o sentido imbuídos de perda relacional e inter-relacional. A fragmentação da corporalidade e da cognição provocada através do filtro multi-dimensional e de diluição. Esta hipótese será fundamentada no conceito de nodalismo, desenvolvido por Philip Gochenour (Gochenour, 2005; Gochenour, 2006; Gochenour, 2008) e, mais tarde, apropriada para os domínios da prática de música experimental por Adkins e d'Escrivan (2013 ; Adkins, 2014A; Adkins, 2014b). Ela também irá promover as noções abstratas de fragmentação e fratura como discutido por Schroeder e Rebelo (2009). A conclusão desse artigo será que o desempenho consistiu em uma série de redes interagindo, intercedendo e interconectadas, cujos agentes são atravessadas por meio e entre. Esta transferência de rede multi-dimensional levou a tensões do projeto; fractura, filtro, diluição e fragmentação

Friction stir processing : simulation and experimental characterizations of aluminium metal matrix composites

Abstract: Aluminum (Al) and its alloys have been the prime materials of construction for many industries. The Al alloys are readily weldable and have excellent formability, good strength and excellent resistance to corrosion. While Al alloys are very strong and exhibit a high strength to weight ratio, they exhibit limited capabilities for wear and abrasion applications. The reinforcement of Aluminum and its alloys with various reinforcing powders has engineered a new type of material regarded as metal-matrix composites. The reinforcement of pure Al and its alloys with ceramic particles is expected to result in an improved mechanical property-to-weight ratio, as well as a superior resistance to wear, and to a high specific hardness. However, these composites suffer from a great loss in ductility and toughness due to the incorporation of non-deformable ceramic reinforcements as a result of inappropriate fabrication process and process parameters. The fabrication process used in this study is known as the friction stir processing technique ...D.Phil. (Mechanical Engineering Science

A Bayesian methodology for localising acoustic emission sources in complex structures

In the field of structural health monitoring (SHM), the acquisition of acoustic emissions to localise damage sources has emerged as a popular approach. Despite recent advances, the task of locating damage within composite materials and structures that contain non-trivial geometrical features, still poses a significant challenge. Within this paper, a Bayesian source localisation strategy that is robust to these complexities is presented. Under this new framework, a Gaussian process is first used to learn the relationship between source locations and the corresponding difference-in-time-of-arrival values for a number of sensor pairings. As an acoustic emission event with an unknown origin is observed, a mapping is then generated that quantifies the likelihood of the emission location across the surface of the structure. The new probabilistic mapping offers multiple benefits, leading to a localisation strategy that is more informative than deterministic predictions or single-point estimates with an associated confidence bound. The performance of the approach is investigated on a structure with numerous complex geometrical features and demonstrates a favourable performance in comparison to other similar localisation methods

Proceedings of the 11th European Workshop on Aircraft Design Education

These are the Proceedings of the 11th European Workshop on Aircraft Design Education (in short: EWADE 2013). The workshop took place from 17. to 19.09.2013 in Linköping, Sweden. EWADE 2013 was for the first time integrated into the CEAS European Air & Space Conference. Location was the congress center located right in the heart of the city of Linköping. The workshop was organized by Prof. Dieter Scholz, Aircraft Design and Systems Group (AERO), Hamburg University of Applied Sciences, in close cooperation with Prof. Petter Krus, Head of the CEAS2013 Programme Committee and Head of the Division of Fluid and Mechatronic System, Linköping University and Dr. Tomas Melin, CEAS 2013 Programme Secretary and Research Associate in the Division of Fluid and Mechatronic System, Linköping University. The workshop had 4 technical sessions: EWADE 1 - Presentations from EWADE Founders and Hosts. EWADE 2 - Teaching and Research Activities in Aircraft Design. EWADE 3 - Aircraft Design Studies. EWADE 4 - Aircraft Design - Methods and Tools. The proceedings cover all 19 presentations. 6 of these presentations are accompanied by full text papers

Ballads and Ohms: Vocal traditions, electronics and compositional strategies

This commentary presents the research and ideas underlying the submitted portfolio of compositions. The core of the portfolio is the exploration of composition and performance methods for transforming traditional vocal folk music using the tools and aesthetics of contemporary electroacoustic and experimental music. The process also led to a wider compositional enquiry into the connections between language and music, between technology and performance, and between scores, encryption and performance. Additionally, extended voice techniques, audio processing, information theory and encryption form a set of nodes that have expressed themselves in various combinations resulting in a portfolio that includes vocal and instrumental, electroacoustic and acoustic music. The submitted works have been created employing bespoke use of technology, selfimposed restriction on real-time voice performance and applying encryption methodology to music and text. This commentary examines the submitted works from three perspectives: the use of voice, of language and of technology. It also discusses the music in the context of perceptual and cognitive discourses about the nature of voice

Touch-sensitive : cybernetic images and replicant bodies in the post-industrial age

This thesis uses Deleuzian cybernetics to advance upon post-modern accounts of the contemporary image economy. It begins with the hypothesis that the schizophrenic behaviours of late capitalism have induced an irreparable crisis in the inherited `specular economy' (Irigaray). This is manifested as the breakdown of the laws of generalised equivalence between truth, value and meaning and the end of a stable signifier-signified relationship - theorised as the escape of reality into 'hyperreality', or the world become simulation according to Baudrillard. It will expose the insufficiency of post-modern accounts which theorise this crisis in representation via methods which fail to escape their own always already representational terms and it will then rigorously follow through the implications of an image economy which is constituted by simulations which are `genuinely' sourceless, which do not imitate a prior reality but which rather synthesise forces and relations. To escape the closed loop of representationalism, it will divert attention away from the signifier and will concentrate on the sub-representational power of images to re-engineer reality and to re-invent the limits of the body. Using the theory and practice of Deleuze, Spinoza, Bergson, Benjamin and Virilio, it will treat images as planes of corporeal becoming - as material entities, virtual avatars, possessional states and conductors of pre-personal affect. Post-modem accounts which cite the overwhelming predominance of images sit uncomfortably with the theories of French anti-ocularcentrism - accessed here via Irigaray and Lyotard - which mark the demise of vision and its attached representational order. This paradox requires that a new perceptual relation be mapped - figured here as entirely corporeal, as tactile and synesthetic (Mcluhan) and therefore immersive. Both 'affect' and 'intensity', as modes of pre-personal perception, will be treated as tactile interactions for these responses to images demand that a body be always 'in touch' with its environment, always anorganically altering its perceptual capacities by rules of feedback. It will be argued that in this reality studio, the body no longer perceives via a specular light source, solid form and assumed phallocentric meaning. The proposed synthesis between cybernetic imaging technologies, immanent perceptual criteria and the ever-changing state of the body requires an engagement with the female since she bears a privileged relation to this scenario. In the specular economy, women have been assumed, like faithful images, to secondarily reproduce an underlying, phallocentric truth. However, it will be shown that just as images can work nonrepresentationally, so too can female bodies; on the one hand appearing representational but on the other conducting radically subversive effects. Where bodies and images are such simulatory becomings it will be shown how the female is neither representationally ordered (social constructivism) nor essentially defined (biological reductivism) but is rather cybernetically engineered. Throughout, her privileged access to the virtual realm beyond language will be used to substantiate the major claim of this thesis that cybernetic simulation is more concerned with the material alteration of an environment rather than with the implementation of linguistic obligation

Geometries of Flight: Remix as Nodal Practice

his paper considers the authors' audiovisual work Geometries of Flight as an example of nodal practice as proposed by Philip Gochenour. The paper outlines Gochenour's concept and situates the 'remix'and the 'mashup'within this model. The paper interrogates various models of thought concurrent with Gochenour's to question the nature of the 'remix', appropriation, and originality in creative practice

A high-performance open-source framework for multiphysics simulation and adjoint-based shape and topology optimization

The first part of this thesis presents the advances made in the Open-Source software SU2, towards transforming it into a high-performance framework for design and optimization of multiphysics problems. Through this work, and in collaboration with other authors, a tenfold performance improvement was achieved for some problems. More importantly, problems that had previously been impossible to solve in SU2, can now be used in numerical optimization with shape or topology variables. Furthermore, it is now exponentially simpler to study new multiphysics applications, and to develop new numerical schemes taking advantage of modern high-performance-computing systems. In the second part of this thesis, these capabilities allowed the application of topology optimiza- tion to medium scale fluid-structure interaction problems, using high-fidelity models (nonlinear elasticity and Reynolds-averaged Navier-Stokes equations), which had not been done before in the literature. This showed that topology optimization can be used to target aerodynamic objectives, by tailoring the interaction between fluid and structure. However, it also made ev- ident the limitations of density-based methods for this type of problem, in particular, reliably converging to discrete solutions. This was overcome with new strategies to both guarantee and accelerate (i.e. reduce the overall computational cost) the convergence to discrete solutions in fluid-structure interaction problems.Open Acces