1,721,398 research outputs found
Victory [picture] /
No full text"Victory"--Handwritten lower centre.; Part of collection: Designs for a national memorial to commemorate Australia's participation in the Great War and the victory of the Allied arms.; Model based on the Winged Victory of Samothrace.; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.pic-an24536387; Exhibited: "Things: photographing the constructed world", Temporary Exhibition Gallery, National Library of Australia - 24 November 2012 - 17 March 2013. AuCNL
Macleod, J E, 416591
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/400891Surname: MACLEOD. Given Name(s) or Initials: J E. Military Service Number or Last Known Location: 416591. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 56408.220537
Item: [2016.0049.33184] "Macleod, J E, 416591
Photonic crystals: Sustainable sensors from silk
No full textSunghwan Kim and co-workers demonstrated the controlled fabrication of a silk inverse opal (SIO), a type of photonic crystal, from fibroin, a silk-derived protein that meets all the criteria for sustainability. The extracted fibroin solution is poured over a self-assembled colloidal crystal of close-packed poly(methyl methacrylate) (PMMA) spheres and left to dry. The PMMA is then dissolved, leaving an inverse lattice of fibroin. The periodic variation of the refractive index between the lattice and the voids imparts structural color to the crystal. Kim and co-researchers control the color of the SIOs, both by varying the size of the PMMA spheres and by filling the voids with acetone. They then irradiate their samples with white light, and observe that the color of their crystals changes according to the specified optogeometric parameters
Molecular self-assembly on graphene
No full textThe formation of ordered arrays of molecules via self-assembly is a rapid, scalable route towards the realization of nanoscale architectures with tailored properties. In recent years, graphene has emerged as an appealing substrate for molecular self-assembly in two dimensions. Here, the first five years of progress in supramolecular organization on graphene are reviewed. The self-assembly process can vary depending on the type of graphene employed: epitaxial graphene, grown in situ on a metal surface, and non-epitaxial graphene, transferred onto an arbitrary substrate, can have different effects on the final structure. On epitaxial graphene, the process is sensitive to the interaction between the graphene and the substrate on which it is grown. In the case of graphene that strongly interacts with its substrate, such as graphene/Ru(0001), the inhomogeneous adsorption landscape of the graphene moiré superlattice provides a unique opportunity for guiding molecular organization, since molecules experience spatially constrained diffusion and adsorption. On weaker-interacting epitaxial graphene films, and on non-epitaxial graphene transferred onto a host substrate, self-assembly leads to films similar to those obtained on graphite surfaces. The efficacy of a graphene layer for facilitating planar adsorption of aromatic molecules has been repeatedly demonstrated, indicating that it can be used to direct molecular adsorption, and therefore carrier transport, in a certain orientation, and suggesting that the use of transferred graphene may allow for predictible molecular self-assembly on a wide range of surfaces. Understanding the behavior of monolayer and sub-monolayer films of molecules on graphene is critical to controlling the growth of these films, and exploiting them for doping, bandgap engineering, and for yet unforeseen applications. Here, the recent progress towards understanding molecular self-assembly on graphene is reviewed. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Dracula’s other modernity: liberalism and ‘Life’ at the fin de siècle
No full textMuch of the scholarship on Dracula (1897) has analysed it as a symptom of various anxieties at the core of late Victorian scientific and technological modernity. In this approach, Stoker’s liberalism in the novel has been read as part of the fragile rational world seeking to suppress the desires and fears of the erotic and other affective forces. This paper takes a different approach. In this paper, I examine the novel through the lens of a strand of modernity that developed around the concept of ‘Life’. ‘Life’ was conceived as an internal generative power of emergence and became a key metaphor for late Victorian progressive liberals, for whom it signified progress as continuously emerging potential, always free from pre-determination. I examine the modernity of ‘Life’ in Part I of the paper and take up its relevance to nineteenth-century liberalism. In Part II, I use modernity’s discourse of ‘Life’ as a frame for my analysis of Dracula’s liberalism.No Full Tex
Probing functional self-assembled molecular architectures with solution/solid scanning tunnelling microscopy
No full textOver the past two decades, solution/solid STM has made clear contributions to our fundamental understanding of the thermodynamic and kinetic processes that occur in molecular self-assembly at surfaces. As the field matures, we provide an overview of how solution/solid STM is emerging as a tool to elucidate and guide the use of self-assembled molecular systems in practical applications, focusing on small molecule device engineering, molecular recognition and sensing and electronic modification of 2D materials
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
High quality epitaxial graphene on 4H-SiC by face-to-face growth in ultra-high vacuum
No full textEpitaxial graphene on SiC is the most promising substrate for the next generation 2D electronics, due to the possibility to fabricate 2D heterostructures directly on it, opening the door to the use of all technological processes developed for silicon electronics. To obtain a suitable material for large scale applications, it is essential to achieve perfect control of size, quality, growth rate and thickness. Here we show that this control on epitaxial graphene can be achieved by exploiting the face-to-face annealing of SiC in ultra-high vacuum. With this method, Si atoms trapped in the narrow space between two SiC wafers at high temperatures contribute to the reduction of the Si sublimation rate, allowing to achieve smooth and virtually defect free single graphene layers. We analyse the products obtained on both on-axis and off-axis 4H-SiC substrates in a wide range of temperatures (1300 °C-1500 °C), determining the growth law with the help of x-ray photoelectron spectroscopy (XPS). Our epitaxial graphene on SiC has terrace widths up to 10μm (on-axis) and 500 nm (off-axis) as demonstrated by atomic force microscopy and scanning tunnelling microscopy, while XPS and Raman spectroscopy confirm high purity and crystalline quality
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