311,138 research outputs found

    The Folly

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    Catalogue of an exhibition held at Gallery 1, Grantpirrie, Redfern, N.S.W., 5-28 February 2009."The Folly is a three-screen digital work in which Arlo Mountford has animated three paintings by the sixteenth century Flemish artist, Pieter Bruegel the Elder. Using the computer, Mountford redrew the genre paintings The Corn Harvest (1565), The Hunters in the Snow (1565) and Landscape with the Fall of Icarus (c1558)"--Website.Catalogue essay by Zara Stanhope

    Thermometry based on Whispering Gallery Mode resonators

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    Whispering gallery (WG) mode resonators were studied since 1980s for precision clock oscillators and for cavity quantum electrodynamics studies. They are a kind of stable, high Q, microwave resonators where a symmetric dielectric medium, such as a cylinder or a disk, is suspended in the centre of a metal cavity. A coaxial cable or a waveguide are used to couple the EM field in the microwave region and thus to excite the system resonant frequencies. WG modes are resonant modes of higher-order azimuthal number (m) having most of the EM energy concentrated on the dielectric surface. Within the temperature range of -196 °C to 500 °C the most commonly used industrial thermometer is platinum resistance thermometer (PRT) with the uncertainties of 10 mK. The PRT offers high accuracy, low drift, a wide operating range; however, it is very sensitive to mechanical shock in handing and shipping. Besides, an AC resistance bridge which is typically required as a readout device for PRT is very expensive. Accordingly, there is a great need for a stability-improved, resistant to mechanical shock, potential lower uncertainty and cost-effective industrial thermometer. WGMR thermometer (WGMRT) is a new kind of thermometer which offers greater vibration immunity, improved stability, smaller uncertainty in temperature measurement and potential lower cost than platinum resistance thermometry. An innovative sapphire whispering gallery thermometer (SWGT) was first explored at the National Institute of Standards and Technology (NIST) in 2007 by Strouse [1] with the uncertainty less than 10 mK. Five WGMs with nominal resonant frequencies ranging from 14.4 GHz to 19.1 GHz and with Q-factors, respectively, ranging from 20,000 to 90,000 were measured within the temperature range of 0 °C to 100 °C. The accuracies of his WGMTs were in the range of ± 0.02 °C and ice point repeatability was better than 2 mK. The thesis reports the tests performed on several WGMR thermometers which have different shapes of crystals to evaluate their stability, resolution and repeatability in the temperature range of -40 °C to 85°C. Thermal cycle experimental results IV showed a Q in excess of 100000 for the mode with the highest azimuthal number, making it possible to achieve a potential temperature resolution of 0.1 mK. Besides, different specimens of crystals with the same nominal specification and reassemble for the same specimen were both tested to check the reproducibility of the thermometer. The birefringence of the sapphire was also studied to make an innovative thermometer. The ratios of two doublet frequencies are sensitive to the temperature-dependent birefringence of the crystal and relatively insensitive to surface contamination and changes in the shape of the cavity. Besides, it can have an external shape that closely approximates the shape of conventional platinum resistance thermometer

    Artists Make Books

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    Catalogue of an exhibition held at Linden Gallery, St. Kilda, March 26-April 14 1991 Chameleon, Hobart, April 27-May 25 1991 La Trobe Valley Arts Centre, Morwell, June 7-July 7 1991 Contemporary Arts Space, Canberra, August 1-24 1991Curator: Christine Johnso

    Proposal for a film project to the Secretary of State from The Art Gallery, Extension Service, Memorial University of Newfoundland

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    Proposal for a Film Project to the Secretary of State from the Art Gallery Extension Service Memorial University of Newfoundland February 1978Proposeal -- Phase I: Project design -- Phase 1: Design budget -- Phase 2: Implementation -- Phase 3: Distribution -- Appendices. Women in charge -- Resettlement program -- Fogo film process -- Consultative committee"Draft, February 6th, 1978

    Receipt from A.C.A. Gallery to John Sloan, March 1, 1946

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    1 leaf (single sided)Receipt from A.C.A. Gallery to John Sloan, March 1, 194

    The three-dimensional art gallery problem and its solutions

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    This thesis addressed the three-dimensional Art Gallery Problem (3D-AGP), a version of the art gallery problem, which aims to determine the number of guards required to cover the interior of a pseudo-polyhedron as well as the placement of these guards. This study exclusively focused on the version of the 3D-AGP in which the art gallery is modelled by an orthogonal pseudo-polyhedron, instead of a pseudo-polyhedron. An orthogonal pseudopolyhedron provides a simple yet effective model for an art gallery because of the fact that most real-life buildings and art galleries are largely orthogonal in shape. Thus far, the existing solutions to the 3D-AGP employ mobile guards, in which each mobile guard is allowed to roam over an entire interior face or edge of a simple orthogonal polyhedron. In many realword applications including the monitoring an art gallery, mobile guards are not always adequate. For instance, surveillance cameras are usually installed at fixed locations. The guard placement method proposed in this thesis addresses such limitations. It uses fixedpoint guards inside an orthogonal pseudo-polyhedron. This formulation of the art gallery problem is closer to that of the classical art gallery problem. The use of fixed-point guards also makes our method applicable to wider application areas. Furthermore, unlike the existing solutions which are only applicable to simple orthogonal polyhedra, our solution applies to orthogonal pseudo-polyhedra, which is a super-class of simple orthogonal polyhedron. In this thesis, a general solution to the guard placement problem for 3D-AGP on any orthogonal pseudo-polyhedron has been presented. This method is the first solution known so far to fixed-point guard placement for orthogonal pseudo-polyhedron. Furthermore, it has been shown that the upper bound for the number of fixed-point guards required for covering any orthogonal polyhedron having n vertices is (n3/2), which is the lowest upper bound known so far for the number of fixed-point guards for any orthogonal polyhedron. This thesis also provides a new way to characterise the type of a vertex in any orthogonal pseudo-polyhedron and has conjectured a quantitative relationship between the numbers of vertices with different vertex configurations in any orthogonal pseudo-polyhedron. This conjecture, if proved to be true, will be useful for gaining insight into the structure of any orthogonal pseudo-polyhedron involved in many 3-dimensional computational geometrical problems. Finally the thesis has also described a new method for splitting orthogonal polygon iv using a polyline and a new method for splitting an orthogonal polyhedron using a polyplane. These algorithms are useful in applications such as metal fabrication

    Communities of practice in art and design and museum and gallery education

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    This article draws on a wider body of research that explores whether art and design teachers (art teachers) and museum and gallery educators (gallery educators) hold conflicting conceptions of ‘critical and contextual studies’. The data analysis focuses on what interviewees said about each other in relation to crossing boundaries between institutions, subject and pedagogical content knowledge, conceptions of the discipline of art and design, the role of gallery education in curriculum development and influence over the development of the pedagogical identities of students. The social theories of communities of practice, discourse and boundary objects are used to explore and conceptualise the complexity of the interaction between the two groups. The article concludes that trans‐institutional and inter‐professional communities of practice can be established that have the potential to generate new forms of engagement, shared repertoire and joint enterprise

    Flowers Gallery Artist of the Day Selector - 2014

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    Since 1983, Flowers Gallery has annually invited ten notable Fine Art stakeholders to select an artist they support for a solo exhibition in central London. In 1995, the art critic Sacha Craddock selected artist Katie Pratt (Craddock had herself exhibited, selected by Albert Irvin in 1986). In 2014, Katie Pratt selected Freya Guest. There was a 21st anniversary publication to accompany the exhibition in 2014. ISBN: 978-1-906412-65-4 The 2014 exhibition was reviewed in the Financial Times

    Research Gallery: Pilot 1. "The mi.mu gloves"

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    This exhibition, the first in a series of research gallery productions, introduces two new professors in the College of Arts and Humanities, Professor Kelly Snook and Professor David Cotterrell, through their current work. "The mi.mu gloves" exhibited the research work-in-progress on the hardware development, software development, and future testing of the next generation mi.mu gloves system design
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