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Full-Text Articles in Social and Behavioral Sciences

Provocations From The Field : The Place Of Bees, Michael R. Griffiths Jun 2016

Provocations From The Field : The Place Of Bees, Michael R. Griffiths

Animal Studies Journal

What would it mean to permit lack to become a productive place? What, indeed, would it mean to think place – so often feminized in the carnophallogocentric order – as active? Lack, in these terms, could be constitutive rather than a mere marker of absence. I propose that the place of bees in the symbolics of species could yield answers to these and related questions. Insects are often understood and conceived as communicators – through pheromones for instance. But in the very gesture that recognizes their communication, one finds the refusal of consciousness behind this communicative apparatus. If bees are said to lack ...


Toothsome Termites And Grilled Grasshoppers: A Cultural History Of Invertebrate Gastronomy, Deirdre P. Coleman Jun 2016

Toothsome Termites And Grilled Grasshoppers: A Cultural History Of Invertebrate Gastronomy, Deirdre P. Coleman

Animal Studies Journal

This article examines the recent turn to entomophagy (insect eating) as a new source of nutrition in a world confronted by increasing population, degraded soils, and food insecurity. Although many regard entomophagy with disgust, there is a case to be made that many insects are much more nutritious, as well as greener and cleaner¹, than many of the foods we regularly eat without thinking. Also, there is nothing new about insect eating or the belief in entomophagy as a sustainable and sensible practice. There is a long cultural history in countries such as Africa and Australia, for instance.


Thirteen Figurings: Reflections On Termites, From Below, Perdita Phillips Jun 2016

Thirteen Figurings: Reflections On Termites, From Below, Perdita Phillips

Animal Studies Journal

This image essay is a creative reflection back upon The Encyclopaedia Isoptera: An encyclopaedia of the arts, sciences, literature and general information about termites, which was mostly written by the artist between 1997 and 1998, and forward to what termite art might undo today. Without access to living termites and, predating multispecies ethnographies, the Encyclopaedia Isoptera was an investigation into the limits of knowledge around termites. Looking back, it can be seen that certain strategies in the Encyclopaedia, such as looking at superseded or alternative knowledge, was a way of interrogating the boundaries of the sensible/insensible, and parallels more ...


Do Insects Feel Pain?, Helen Tiffin Jun 2016

Do Insects Feel Pain?, Helen Tiffin

Animal Studies Journal

This paper briefly considers the broad social and scientific background to research into the possibility of insects experiencing pain sensations analogous to our own. There has been increasing use of insects in pain experiments generally, as ethical constraints on the use of other animals increased through the last century. The ways in which scientists have tackled the question of insect pain, particularly in trying to distinguish between nociception and pain are then selectively summarised. These include opioid, hormonal, evolutionary, neurophysiological and behavioural approaches, as well as experiments designed to elucidate the difficult area of insect consciousness, from the 1980s to ...


[Review] David Wilson, The Welfare Of Performing Animals: A Historical Perspective. Berlin: Springer, 2015, Peta Tait Jun 2016

[Review] David Wilson, The Welfare Of Performing Animals: A Historical Perspective. Berlin: Springer, 2015, Peta Tait

Animal Studies Journal

This book makes a valuable contribution to animal studies. It investigates the social and political processes concerned with the welfare of performing animals in Britain from the nineteenth century into the twentieth century. Although this area requires specialised inquiry, as David Wilson points out, animal performance is usually generalised about within pro-animal scholarship. Drawing on highly detailed research, this book provides a comprehensive account of the individuals and organisations that campaigned against animal performance and its cruelties and, in turn, those who campaigned for its continuation. It presents the human stories behind the movement against animal performance; descriptions of the ...


Mimicry And Mimesis: Matrix Insect, Madeleine Kelly Jun 2016

Mimicry And Mimesis: Matrix Insect, Madeleine Kelly

Animal Studies Journal

Paintings and insects might seem like odd companions. In this paper I describe how a series of paintings I made depicting insects creates associations between mimesis and mimicry in order to flag a sort of protective self-referentiality – one where painting resists its proverbial ‘end’ and insects are presented as vital new orders. Drawing upon art historical references, such as Surrealism and the modernist grid, I argue that playing on these references and the compositional effects of camouflage enlivens our regard for the sensuous worlds of both insects and painting. I conclude by exploring how paintings of insects are powerful metaphors ...


[Review] Ann C. Colley, Wild Animal Skins In Victorian Britain. Farnham: Ashgate, 2014, John Simons Jun 2016

[Review] Ann C. Colley, Wild Animal Skins In Victorian Britain. Farnham: Ashgate, 2014, John Simons

Animal Studies Journal

You should never judge a book by its cover but, of course, that’s exactly what the Victorians did when they looked at animals—or so Professor Ann Colley claims, and with some justification. This book is a contribution to the growing list of valuable and entertaining studies of the collection and exhibition of wild animals in Victorian Britain and beyond, and it is highly recommended to anyone researching the field. I was looking forward to reading this as although there has been a fair bit of work on zoos and menageries and, especially recently, on taxidermy, the habit of ...


A Sustainable Campus: The Sydney Declaration On Interspecies Sustainability, Fiona Probyn-Rapsey, Sue Donaldson, George Ioannides, Tess Lea, Kate Marsh, Astrida Neimanis, Annie Potts, Nik Taylor, Richard Twine, Dinesh Wadiwel, Stuart White Jun 2016

A Sustainable Campus: The Sydney Declaration On Interspecies Sustainability, Fiona Probyn-Rapsey, Sue Donaldson, George Ioannides, Tess Lea, Kate Marsh, Astrida Neimanis, Annie Potts, Nik Taylor, Richard Twine, Dinesh Wadiwel, Stuart White

Animal Studies Journal

Under the remit of an expanded definition of sustainability – one that acknowledges animal agriculture as a key carbon intensive industry, and one that includes interspecies ethics as an integral part of social justice – institutions such as Universities can and should play a role in supporting a wider agenda for sustainable food practices on campus. By drawing out clear connections between sustainability objectives on campus and the shift away from animal based products, the objective of this article is to advocate for a more consistent understanding and implementation of sustainability measures as championed by university campuses at large. We will draw ...


Animal Studies Journal 2016 5 (1): Cover Page, Table Of Contents, Notes On Contributors And Editorial, Melissa J. Boyde Jun 2016

Animal Studies Journal 2016 5 (1): Cover Page, Table Of Contents, Notes On Contributors And Editorial, Melissa J. Boyde

Animal Studies Journal

Cover page, table of contents, contributor biographies and editorial for Animal Studies Journal Vol. 5 No.1, 2016.


Humans, Insects And Their Interaction: A Multi-Faceted Analysis, Raynald H. Lemelin, Rick W. Harper, Jason Dampier, Robert Bowles, Debbie Balika Jun 2016

Humans, Insects And Their Interaction: A Multi-Faceted Analysis, Raynald H. Lemelin, Rick W. Harper, Jason Dampier, Robert Bowles, Debbie Balika

Animal Studies Journal

By administering Personal Meaning of Insects Maps (PMIM) to participants from eastern Canada and northeastern United States, we examine how people’s perceptions of insects are often determined by childhood encounters, corporeal cues, and influenced by environmental preference during recreational activities, often resulting in inconsistencies, inaccuracies, and bias. While the purpose of this study was to acquire a greater understanding of these entanglements through visual maps, the goal of this paper is to disentangle these morasses by highlighting the various positive, negative, dialectic, and ambivalent aspects of how insects are perceived.


Through The Eyes Of A Bee: Seeing The World As A Whole, Adrian G. Dyer, Scarlett R. Howard, Jair E. Garcia Jun 2016

Through The Eyes Of A Bee: Seeing The World As A Whole, Adrian G. Dyer, Scarlett R. Howard, Jair E. Garcia

Animal Studies Journal

Honeybees are an important model species for understanding animal vision as free-flying individuals can be easily trained by researchers to collect nutrition from novel visual stimuli and thus learn visual tasks. A leading question in animal vision is whether it is possible to perceive all information within a scene, or if only elemental cues are perceived driven by the visual system and supporting neural mechanisms. In human vision we often process the global content of a scene, and prefer such information to local elemental features. Here we discuss recent evidence from studies on honeybees which demonstrate a preference for global ...


The Intersectional Influences Of Prince: A Human-Animal Tribute, Annie K. Potts Jun 2016

The Intersectional Influences Of Prince: A Human-Animal Tribute, Annie K. Potts

Animal Studies Journal

Prince Rogers Nelson (1958-2016) was best known for his joyful funk music and electrifying stage performances that transgressed normative representations of gender, sexuality, race, spirituality, identity and taste. He was also a compassionate person who held deep convictions about freedom and the right of all species to enjoy lives without fear and suffering. This essay discusses Prince’s intersectional influences – the various ways his virtuosity over the past 38 years disrupted binaries, challenged assumptions and stereotypes, advocated for social justice, and combatted speciesism in its many forms. Embedded within the essay are seven personal tributes written by fans of Prince ...


[Review] Robert Cribb, Helen Gilbert And Helen Tiffen, Wild Man From Borneo: A Cultural History Of The Orangutan. Honolulu: University Of Hawai’I Press, 2014, Matthew Chrulew Jun 2016

[Review] Robert Cribb, Helen Gilbert And Helen Tiffen, Wild Man From Borneo: A Cultural History Of The Orangutan. Honolulu: University Of Hawai’I Press, 2014, Matthew Chrulew

Animal Studies Journal

Wild Man from Borneo is a studious and wide-ranging cultural history of the orangutan and an indispensable resource for anyone working on this species or great apes in general. Orangutan stories and encounters have always captivated, from the tales of the Dayak and Batak peoples from Borneo and Indonesia, to the first rumours of early European travellers, and later observations and dissections. The orangutan’s uncanny similarity to humans, both in form and behaviour, made it central to a nineteenth-century debate about the uniqueness of humanity, in a time when few had been seen and Europeans were unsure just what ...


Phosphorus Recovery From Digested Sludge Centrate Using Seawater-Driven Forward Osmosis, Ashley J. Ansari, Faisal I. Hai, William E. Price, Long D. Nghiem Jan 2016

Phosphorus Recovery From Digested Sludge Centrate Using Seawater-Driven Forward Osmosis, Ashley J. Ansari, Faisal I. Hai, William E. Price, Long D. Nghiem

Faculty of Engineering and Information Sciences - Papers: Part A

In this study, we demonstrate a novel seawater-driven forward osmosis (FO) process to recover calcium phosphate precipitates from digested sludge centrate without any chemical addition and draw solute regeneration. The FO process effectively pre-concentrated phosphate and calcium in the digested sludge centrate. Spontaneous precipitation of calcium phosphate minerals in the digested sludge centrate was achieved by the sustained concentrative action of the FO process and the gradual pH increase due to the diffusion of protons to the draw solution. Pre-concentrating digested sludge centrate by three-fold resulted in a 92% recovery of phosphate via precipitation. The phosphate precipitate only constituted 3 ...


Dynamic Response Of Symmetrical And Asymmetrical Sandwich Plates With Shear Thickening Fluid Core Subjected To Penetration Loading, Z. H. Tan, L Zuo, Weihua Li, L S. Liu, Peng Zhai Jan 2016

Dynamic Response Of Symmetrical And Asymmetrical Sandwich Plates With Shear Thickening Fluid Core Subjected To Penetration Loading, Z. H. Tan, L Zuo, Weihua Li, L S. Liu, Peng Zhai

Faculty of Engineering and Information Sciences - Papers: Part A

Symmetrical and asymmetrical sandwich plates with a shear thickening fluid (STF) core were designed to be penetrated by a cylindrical projectile at various impact velocities. These STFs consist of SiO2/PEG400, and the volume fractions of SiO2 nano-particles are 54% and 56%, respectively. Failure mode of the rear face sheet of the symmetrical sandwich plate is petal perforation, but the rear face sheet of the asymmetrical sandwich plate failed in plug perforation mode at the velocity of less than 80 m/s and in the petal perforation mode at the velocity faster than 90 m/s. The results showed that ...


Optimizing Distributed Generation Parameters Through Economic Feasibility Assessment, Kashem M. Muttaqi, An D. T Le, Jamshid Aghaei, Esmaeil Mahboubi-Moghaddam, Michael Negnevitsky, Gerard Ledwich Jan 2016

Optimizing Distributed Generation Parameters Through Economic Feasibility Assessment, Kashem M. Muttaqi, An D. T Le, Jamshid Aghaei, Esmaeil Mahboubi-Moghaddam, Michael Negnevitsky, Gerard Ledwich

Faculty of Engineering and Information Sciences - Papers: Part A

To meet the fast growth of electricity demand, the traditional network solution tends to expand existing substations, build more new substations, and build transmission lines. Distributed Generation (DG) is posed as an alternative method for the network providers not only to accommodate the load increase and relieve network overload, but also to offer other additional technical and economic benefits. This paper addresses the issue of DG planning and has proposed a technique for optimizing the DG size and location to minimize the overall investment and operational cost of the system. The proposed optimization methodology assesses the compatibility of different generation ...


Renewable Energy Management In A Remote Area Using Modified Gravitational Search Algorithm, Sahand Ghavidel, Jamshid Aghaei, Kashem M. Muttaqi, Alireza Heidari Jan 2016

Renewable Energy Management In A Remote Area Using Modified Gravitational Search Algorithm, Sahand Ghavidel, Jamshid Aghaei, Kashem M. Muttaqi, Alireza Heidari

Faculty of Engineering and Information Sciences - Papers: Part A

In this paper, a small remote area which is located in Nigeria has been considered as a model to be tested by a managing scheme for providing both electricity and water. In this strategy, the groundwater is pumped into a water tank which can be later used for supplying required irrigation and drinking water. A PAT (Pump as Turbine) is used as a hybrid system for supplying electricity and water as well as storing water in the water tank. Also, a PV (photovoltaic plant), a package of batteries (BAT) in addition to a diesel ICE (internal combustion engine) are used ...


Application Of Advanced Bounding Surface Plasticity Model In Static And Seismic Analyses Of Zipingpu Dam, Mojtaba E. Kan, Hossein A. Taiebat Jan 2016

Application Of Advanced Bounding Surface Plasticity Model In Static And Seismic Analyses Of Zipingpu Dam, Mojtaba E. Kan, Hossein A. Taiebat

Faculty of Engineering and Information Sciences - Papers: Part A

The strong ground motion of the Wenchuan earthquake that hit the Zipingpu Dam in China in 2008 has provided an excellent benchmark to study the behaviour of large modern rockfill dams subjected to seismic loading. The performance of the dam during construction and prior to and after the earthquake loading has been recorded with good accuracy, and provides a reliable database to examine the reliability of available constitutive models and numerical methods in predicting the static and dynamic behaviour of embankment dams. In this paper, an advanced bounding surface plasticity model has been used in a series of numerical analyses ...


The Moderating Impact Of Temporal Separation On The Association Between Intention And Physical Activity: A Meta-Analysis, Mairtin S. Mcdermott, Rajeev Sharma, Megan Andrews, Shahriar Akter, Donald Iverson, Peter Caputi, Tim Coltman, Murad Safadi Jan 2016

The Moderating Impact Of Temporal Separation On The Association Between Intention And Physical Activity: A Meta-Analysis, Mairtin S. Mcdermott, Rajeev Sharma, Megan Andrews, Shahriar Akter, Donald Iverson, Peter Caputi, Tim Coltman, Murad Safadi

Faculty of Engineering and Information Sciences - Papers: Part A

Previous meta-analyses have estimated that the intention-behaviour association in physical activity (PA) is large in magnitude. However, these prior meta-analyses have also revealed a large degree of heterogeneity, suggesting the presence of moderating variables. This study examines the impact of one such moderator, testing the hypothesis that the magnitude of the association between intention and behaviour decreases as the temporal separation between the two increases. A systematic literature search was used to identify published and unpublished studies that met the inclusion criteria. A random-effects meta-regression was conducted to test the study hypothesis. A total of 78 journal articles and 11 ...


A Strategy For Configuration Of An Integrated Flexible Sulfur Cathode For High-Performance Lithium-Sulfur Batteries, Hongqiang Wang, Wenchao Zhang, Hua-Kun Liu, Zaiping Guo Jan 2016

A Strategy For Configuration Of An Integrated Flexible Sulfur Cathode For High-Performance Lithium-Sulfur Batteries, Hongqiang Wang, Wenchao Zhang, Hua-Kun Liu, Zaiping Guo

Faculty of Engineering and Information Sciences - Papers: Part A

Lithium-sulfur batteries are regarded as promising candidates for energy storage devices owing to their high theoretical energy density. The practical application is hindered, however, by low sulfur utilization and unsatisfactory capacity retention. Herein, we present a strategy for configuration of the sulfur cathode, which is composed of an integrated carbon/sulfur/carbon sandwich structure on polypropylene separator that is produced using the simple doctor-blade technique. The integrated electrode exhibits excellent flexibility and high mechanical strength. The upper and bottom carbon layers of the sandwich-structured electrode not only work as double current collectors, which effectively improve the conductivity of the electrode ...


Mechanical Fatigue Performance Of Pcl-Chondroprogenitor Constructs After Cell Culture Under Bioreactor Mechanical Stimulus, J A. Panadero, Vitor Sencadas, Sonia C.M. Silva, Clarisse Ribeiro, Vítor Correia, F M. Gama, J L. Gomez Ribelles, Senentxu Lanceros-Méndez Jan 2016

Mechanical Fatigue Performance Of Pcl-Chondroprogenitor Constructs After Cell Culture Under Bioreactor Mechanical Stimulus, J A. Panadero, Vitor Sencadas, Sonia C.M. Silva, Clarisse Ribeiro, Vítor Correia, F M. Gama, J L. Gomez Ribelles, Senentxu Lanceros-Méndez

Faculty of Engineering and Information Sciences - Papers: Part A

In tissue engineering of cartilage, polymeric scaffolds are implanted in the damaged tissue and subjected to repeated compression loading cycles. The possibility of failure due to mechanical fatigue has not been properly addressed in these scaffolds. Nevertheless, the macroporous scaffold is susceptible to failure after repeated loading- unloading cycles. This is related to inherent discontinuities in the material due to the micropore structure of the macropore walls that act as stress concentration points. In this work, chondrogenic precursor cells have been seeded in poly-e-caprolactone (PCL) scaffolds with fibrin and some were submitted to free swelling culture and others to cyclic ...


Biodegradation Of Cellulose Triacetate And Polyamide Forward Osmosis Membranes In An Activated Sludge Bioreactor: Observations And Implications, Wenhai Luo, Ming Xie, Faisal I. Hai, William E. Price, Long D. Nghiem Jan 2016

Biodegradation Of Cellulose Triacetate And Polyamide Forward Osmosis Membranes In An Activated Sludge Bioreactor: Observations And Implications, Wenhai Luo, Ming Xie, Faisal I. Hai, William E. Price, Long D. Nghiem

Faculty of Engineering and Information Sciences - Papers: Part A

This study investigated long-term stability of forward osmosis (FO) membranes against biodegradation during prolonged exposure to activated sludge. Results show that cellulose triacetate (CTA) membranes were more resistant against biodegradation than polyamide thin film composite (TFC) ones. Nevertheless, CTA membrane biodegradation was discernible after seven months of exposure to activated sludge as manifested by an increase in the membrane average pore size, water and salt permeability, and membrane structural parameter. Asaresult, of prolonged exposure to activated sludge, the water and reverse salt fluxes of the CTA membrane increased; and concomitantly the rejection of a range of trace organic contaminants decreased ...


Effect Of Different Frp Wrapping Arrangements On The Confinement Mechanism, Thong M. Pham, Jim Youssed, Muhammad N. S Hadi, Tung M. Tran Jan 2016

Effect Of Different Frp Wrapping Arrangements On The Confinement Mechanism, Thong M. Pham, Jim Youssed, Muhammad N. S Hadi, Tung M. Tran

Faculty of Engineering and Information Sciences - Papers: Part A

This study aims to investigate the structural behavior and failure modes of fiber-reinforced-polymer (FRP) confined concrete wrapped with different FRP arrangements. A total of twenty four specimens were cast and tested, with three of these specimens acting as reference specimens and the remaining specimens wrapped with different types of FRP (CFRP and GFRP) by different wrapping arrangements. They include fully wrapped, partially wrapped and non-uniformly wrapped concrete cylinders. The nonuniformly wrapped concrete cylinders provided higher compressive strengths and strain for FRP-confined concrete, in comparison with conventional fully wrapping arrangements. The effect of confinement level on the effectiveness of FRP confinement ...


Quadratic Autocatalysis In An Extended Continuous-Flow Stirred Tank Reactor (Ecstr), Mark Nelson, E Balakrishnan Jan 2016

Quadratic Autocatalysis In An Extended Continuous-Flow Stirred Tank Reactor (Ecstr), Mark Nelson, E Balakrishnan

Faculty of Engineering and Information Sciences - Papers: Part A

The continuous-flow stirred tank reactor (CSTR) is a standard tool used to investigate the behaviour of chemical processes subject to nonlinear kinetics. A recently proposed variation of the CSTR is the extended continuous-flow stirred tank reactor (ECSTR). This consists of a standard CSTR attached to an environmental tank reactor with mass transfer occurring between them through a membrane. The attraction of studying a reaction scheme in an ECSTR, rather than a CSTR, is that this offers the possibility of modifying the behaviour with a larger parameter dimension. We investigate how the behaviour of a standard non-linear chemical mechanism, quadratic autocatalysis ...


The Primitive Ideals Of Some Etale Groupoid C*-Algebras, Aidan Sims, Dana P. Williams Jan 2016

The Primitive Ideals Of Some Etale Groupoid C*-Algebras, Aidan Sims, Dana P. Williams

Faculty of Engineering and Information Sciences - Papers: Part A

We consider the Deaconu-Renault groupoid of an action of a finitely generated free abelian monoid by local homeomorphisms of a locally compact Hausdorff space. We catalogue the primitive ideals of the associated groupoid C∗-algebra. For a special class of actions we describe the Jacobson topology.


Statistical Efficiency In Distance Sampling, Robert Graham Clark Jan 2016

Statistical Efficiency In Distance Sampling, Robert Graham Clark

Faculty of Engineering and Information Sciences - Papers: Part A

Distance sampling is a technique for estimating the abundance of animals or other objects in a region, allowing for imperfect detection. This paper evaluates the statistical efficiency of the method when its assumptions are met, both theoretically and by simulation. The theoretical component of the paper is a derivation of the asymptotic variance penalty for the distance sampling estimator arising from uncertainty about the unknown detection parameters. This asymptotic penalty factor is tabulated for several detection functions. It is typically at least 2 but can be much higher, particularly for steeply declining detection rates. The asymptotic result relies on a ...


Investigation Of Hydrogen Assisted Cracking In Acicular Ferrite Using Site-Specific Micro-Fracture Tests, Walter L. Costin, Oliver Lavigne, Andrei Kotousov, Reza Ghomashchi, Valerie M. Linton Jan 2016

Investigation Of Hydrogen Assisted Cracking In Acicular Ferrite Using Site-Specific Micro-Fracture Tests, Walter L. Costin, Oliver Lavigne, Andrei Kotousov, Reza Ghomashchi, Valerie M. Linton

Faculty of Engineering and Information Sciences - Papers: Part A

Hydrogen assisted cracking (HAC) is a common type of failure mechanism that can affect a wide range of metals and alloys. Experimental studies of HAC are cumbersome due to various intrinsic and extrinsic parameters and factors (associated with stress, hydrogen and the materials microstructure) contributing to the hydrogen crack kinetics. The microstructure of many materials consists of diverse constituents with characteristic features and mechanical properties which only occur in very small material volumes. The only way to differentiate the effect of these individual constituents on the hydrogen crack kinetics is to miniaturise the testing procedures. In this paper we present ...


Field Study Of Air Conditioning And Thermal Comfort In Residential Buildings, Jungsoo Kim, Richard De Dear, Tom Parkinson, Christhina Candido, Paul Cooper, Zhenjun Ma, Wasim Saman Jan 2016

Field Study Of Air Conditioning And Thermal Comfort In Residential Buildings, Jungsoo Kim, Richard De Dear, Tom Parkinson, Christhina Candido, Paul Cooper, Zhenjun Ma, Wasim Saman

Faculty of Engineering and Information Sciences - Papers: Part A

The aim of this study is to better understand the external and internal drivers that affect residential air-conditioning (A/C) use decisions and occupant comfort. Field observations were carried out using instrumental measurements and smartphone questionnaires, recording householder's A/C usage patterns, indoor/outdoor climatic factors, perception of thermal comfort and adaptive behaviours.


Encoding And Communicating Navigable Speech Soundfields, Xiguang Zheng, Christian H. Ritz, Jiangtao Xi Jan 2016

Encoding And Communicating Navigable Speech Soundfields, Xiguang Zheng, Christian H. Ritz, Jiangtao Xi

Faculty of Engineering and Information Sciences - Papers: Part A

This paper describes a system for encoding and communicating navigable speech soundfields for applications such as immersive audio/visual conferencing, audio surveillance of large spaces and free viewpoint television. The system relies on recording speech soundfields using compact co-incident microphone arrays that are then processed to identify sources and their spatial location using the well-known assumption that speech signals are sparse in the time-frequency domain. A low-delay Direction of Arrival (DOA)-based frequency domain sound source separation approach is proposed that requires only 250 ms of speech signal. Joint compression is achieved through a previously proposed perceptual analysis-by-synthesis spatial audio ...


Nonlocal Transistor Based On Pure Crossed Andreev Reflection In A Euo-Graphene/Superconductor Hybrid Structure, Yee Sin Ang, Lawrence Ang, C Zhang, Zhongshui Ma Jan 2016

Nonlocal Transistor Based On Pure Crossed Andreev Reflection In A Euo-Graphene/Superconductor Hybrid Structure, Yee Sin Ang, Lawrence Ang, C Zhang, Zhongshui Ma

Faculty of Engineering and Information Sciences - Papers: Part A

We study the interband transport in a superconducting device composed of graphene with EuO-induced exchange interaction. We show that pure crossed Andreev reflection can be generated exclusively without the parasitic local Andreev reflection and elastic cotunnelling over a wide range of bias and Fermi levels in an EuO-graphene/superconductor/EuO-graphene device. The pure nonlocal conductance exhibits rapid on-off switching and oscillatory behavior when the Fermi levels in the normal and the superconducting leads are varied. The oscillation reflects the quasiparticle propagation in the superconducting lead and can be used as a tool to probe the subgap quasiparticle mode in superconducting ...