121,795 research outputs found
Realisation of ultra-low loss photonic crystal slab waveguide devices
No full textIn this paper we demonstrate low loss transmission both above and below the primary band-gap for a photonic crystal (PC) super-prism device consisting of 600 lattice periods. By modifying the refractive index of the holes, we reduce overall insertion loss to just 4.5 dB across the entire visible spectrum. We show that the remaining loss is predominantly due to impedance mismatch at the boundaries between patterned and unpatterned slab waveguide regions. Experimental loss measurements compare well with finite difference time domain simulations
L'OAS et la violence (Anne-Marie Duranton-Crabol)
No full textPathé Anne-Marie, Perney Martine. L'OAS et la violence (Anne-Marie Duranton-Crabol). In: Bulletin de l'Institut d'Histoire du Temps Présent, n°56, juin 1994. pp. 24-28
La guerre d’Algérie au travers des archives du SHAT (Caroline Obert)
No full textPathé Anne-Marie, Perney Martine. La guerre d’Algérie au travers des archives du SHAT (Caroline Obert). In: Bulletin de l'Institut d'Histoire du Temps Présent, n°56, juin 1994. pp. 28-29
L'Afrique sahélienne. Journée d'étude d'Aix-en-Provence, 14 novembre 1994
No full textPathé Anne-Marie, Perney Martine. L'Afrique sahélienne. Journée d'étude d'Aix-en-Provence, 14 novembre 1994 . In: Bulletin de l'Institut d'Histoire du Temps Présent, n°60, juin 1995. pp. 43-49
Optical classification of human embryonic stem cells
No full textOptical approaches have been explored to enable undifferentiated to be distinguished from differentiated stem cells. Optical measurements combined with theoretical and statistical analysis provide a novel approach with the potential for identification and sorting
Sharp-cornered liquid drops by wetting of nanoscale features
No full textSerrated-edge droplets: The wetting of metallic microstructures with nanoscale features, used as substrates for surface-enhanced Raman scattering, can result in sharp bending of the droplet edges. Tethering of the liquid/air/substrate contact line induces flows of analyte to particular locations as the droplet recedes during evaporation (see SEM image). Molecules are preferentially deposited in the pyramidal pits on these structures
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
The vanishing author in computer-generated works: a critical analysis of recent Australian case law
No full textAbstract
The use of software is ubiquitous in the creation of many copyright works, yet the requirement in copyright law that every work have a human author who engages in independent intellectual effort means that its use may prevent copyright subsistence. Several recent Australian cases have refocused attention on authorship as an essential criterion of copyright subsistence, and these cases suggest that much computer-produced output may be authorless and thus lack copyright protection. This article, the first in a two-part series, analyses how each case deals with the question of authorship of computer-produced works and why the use of software diminishes copyright protection for a significant number of computer-generated works. The article critiques the application of conventional notions of human authorship developed in the pre-computer age to modern productions and suggests alternative approaches to authorship that satisfy both the major objectives of copyright policy and the need to adapt to the computer age. The article argues that, without a broader judicial approach to authorship of computer-generated works, Parliament must remedy the lacuna in protection for these ‘authorless’ works. Possible solutions for reform are suggested. In a forthcoming article, the author comprehensively examines those reform proposals
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
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