Internet delivery of time-synchronised multimedia: the SCOTS projects

The Scottish Corpus of Texts and Speech (SCOTS) Project at Glasgow University aims to make available over the Internet a 4 million-word multimedia corpus of texts in the languages of Scotland. Twenty percent of this final total will comprise spoken language, in a combination of audio and video material. Versions of SCOTS have been accessible on the Internet since November 2004, and regular additions are made to the Corpus as texts are processed and functionality is improved. While the Corpus is a valuable resource for research, our target users also include the general public, and this has important implications for the nature of the Corpus and website. This paper will begin with a general introduction to the SCOTS Project, and in particular to the nature of our data. The main part of the paper will then present the approach taken to spoken texts. Transcriptions are made using Praat (Boersma and Weenink, University of Amsterdam), which produces a time-based transcription and allows for multiple speakers though independent tiers. This output is then processed to produce a turn-based transcription with overlap and non-linguistic noises indicated. As this transcription is synchronised with the source audio/video material it allows users direct access to any particular passage of the recording, possibly based upon a word query. This process and the end result will be demonstrated and discussed. We shall end by considering the value which is added to an Internet-delivered Corpus by these means of treating spoken text. The advantages include the possibility of returning search results from both written texts and multimedia documents; the easy location of the relevant section of the audio file; and the production through Praat of a turn-based orthographic transcription, which is accessible to a general as well as an academic user. These techniques can also be extended to other research requirements, such as the mark-up of gesture in video texts

Corpus of Modern Scottish Writing (CMSW)

This poster describes the online Corpus of Modern Scottish Writing (1700-1945), being created at the University of Glasgow. The corpus fills the chronological gap between the Helsinki Corpus of Older Scots (1375-1700) and the Scottish Corpus of Texts and Speech (1945-present). The period covered by CMSW is an important time in the history of Scotland and Scots. It begins with the last stages of the standardisation of written English and the onset of the ‘Vernacular Revival’ in literary Scots. Out of the interaction between Broad Scots and written Standard English, the hybrid prestige variety of today’s Scottish English is said to emerge: CMSW will allow researchers to substantiate this claim, among many others. Once complete, CMSW will contain at least 4 million words of text, with accompanying metadata, covering a range of genres, including personal writing, administrative prose, verse and drama, and the writings of language commentators

Bearings use dry self-lubricating cage materials

Rolling element bearings in spacecraft mechanical systems use solid lubricant composites of polytetrafluoroethylene in the bearing cage which functions as the lubricant reservoir. The cage spaces the rolling elements equally and provides the lubricant at the bearing load-carrying surface

Radio Detection of 18 Rass BL Lac Objects

We present the radio detection of 18 BL Lac objects from our survey of over 575 square degrees of sky. These 18 objects are located within 20 arcsec of the X-ray position, of which 11 have a measured red-shift. All candidates are radio emitters above ~1 mJy and fall within the range of existing samples on the two colour, alpha_ro vs alpha_ox, diagram with a transitional population of three (3) evident. Two unusual sources have been identified, a candidate radio quiet BL Lac, RX J0140.9-4130, and an extreme HBL, RX J0109.9-4020, with Log(nu_peak)~19.2. The BL Lac Log(N)-Log(S) relation is consistent with other samples and indicates the ROSAT All Sky Survey (RASS) could contain (2000+-400) BL Lac objects.Comment: 14 pages, 6 figures, accepted for publication in Serbian Astronomical Journa

Comparison of flight data and analysis for hingeless rotor regressive inplane mode stability

Analytical and experimental data obtained during the development of the AH-56A covering stability of the regressive inplane mode, including coupling with other modes such as body and rotor plunge are reported. Data were obtained on two distinctly different control systems; both gyro controlled, but one with feathering moment feedback and the other with direct flapping feedback. A review was made of analytical procedures employed in investigating the stability of this mode and a comparison was made of the analytical and experimental data. The effect of certain parameters including blade droop, sweep, delta 3, alpha 1, vehicle roll inertia, inplane frequency, and rpm and forward speed on the mode were also reviewed. It was shown that the stability of this mode is treatable by analysis and that adequate stability is achievable without recourse to auxiliary inplane damping devices

A study to examine the feasibility of using surface penetrators for mineral exploration

The feasibility of using penetrators in earth applications is examined. Penetrator applications in exploration for mineral resources only is summarized. Instrumentation for future penetrators is described. Portions of this report are incorporated into a more extensive report examining other penetrator applications in exploration for fossil fuels, geothermal resources, and in environmental and engineering problems, which is to be published as a NASA technical publication

Experimental investigation of a large-scale, two-dimensional, mixed-compression inlet system: Internal performance and drag at transonic conditions, free stream Mach equals 0.6 to 1.28

A large scale, variable-geometry inlet system with a design Mach number of 3.0 was tested at Mach numbers from 0.6 to 1.28. Variable features for off-design operation are an adjustable-height ramp system and a translating cowl. Experimental results are presented for transonic ramp and cowl positions showing the effect of throat boundary layer bleed and vortex generators on engine-face performance. Detailed pressure and force-balance data are used to evaluate transonic drag characteristics

Spin-Charge separation in a model of two coupled chains

A model of interacting electrons living on two chains coupled by a transverse hopping $t_\perp$, is solved exactly by bosonization technique. It is shown that $t_\perp$ does modify the shape of the Fermi surface also in presence of interaction, although charge and spin excitations keep different velocities $u_\rho$, $u_\sigma$. Two different regimes occur: at short distances, $x\ll \xi = (u_\rho - u_\sigma)/4t_\perp$, the two chain model is not sensitive to $t_\perp$, while for larger separation $x\gg \xi$ inter--chain hopping is relevant and generates further singularities in the electron Green function besides those due to spin-charge decoupling. (2 figures not included. Figure requests: FABRIZIO@ITSSISSA)Comment: 12 pages, LATEX(REVTEX), SISSA 150/92/CM/M