Split-screen single-camera stereoscopic PIV application to a turbulent confined swirling layer with free surface

An annular liquid wall jet, or vortex tube, generated by helical injection inside a tube is studied experimentally as a possible means of fusion reactor shielding. The hollow confined vortex/swirling layer exhibits simultaneously all the complexities of swirling turbulence, free surface, droplet formation, bubble entrapment; all posing challenging diagnostic issues. The construction of flow apparatus and the choice of working liquid and seeding particles facilitate unimpeded optical access to the flow field. A split-screen, single-camera stereoscopic particle image velocimetry (SPIV) scheme is employed for flow field characterization. Image calibration and free surface identification issues are discussed. The interference in measurements of laser beam reflection at the interface are identified and discussed. Selected velocity measurements and turbulence statistics are presented at Re_λ = 70 (Re = 3500 based on mean layer thickness)

Out of body experiences: a practice-led evaluation of the shifting boundaries shared by analogue films and their digital counterparts

Phd ThesisThis thesis provides in-depth analysis of my practice-led PhD and the methods used to focus on key areas of research - namely exploring the shifting perceptual parameters revealed when analogue films are transferred to digital formats. With this process audio-visual content previously locked inside film’s decaying form is resurrected as immaterial code within a malleable frame. My work utilised this spectral quality to examine different layers of film representation, observing its inner structure, while also stepping back to contemplate its content from a self-reflexive distance. These multiple viewpoints introduced unique spaces within which to study the analogue past from a digital perspective: The filmstrip’s mechanically regulated motion seamlessly combines still images, sound and light into analogue interpretations of space-time. My work digitally desynchronised these elements, revealing the structural gaps between them while also suggesting their merger with a new perceptual model. Moving beyond internal film worlds to the boundaries they share with the physical viewing space, another layer of disjointed separation was introduced by producing screens that struggled to contain film content within their frames. Stepping back further, these screens occupied a space caught between the fixed viewpoint of a cinema and the multiple perspectives allowed by gallerybased installations. The shifting frame of these hybrid spaces created an oscillation between passive submersion within, and analytical distance from mediated worlds. By unmooring and offsetting the precise alignment between film structure, screens and viewing spaces, my practice revealed overlapping edges and disjointed spaces within which media from different eras interacted. This opened up new areas of research that fed directly into my theoretical studies (the thesis layout itself shifts outwards, from media structures to viewing spaces). This approach enabled me to produce a substantial body of work, iii offering an original contribution to this field

Transformative Criminal Defense Practice: Truth, Love, and Individual Rights- The Innovative Approach of the Georgia Justice Project

Georgia Justice Project has a unique approach to criminal defense and rehabilitation which is based on a relationship and community-oriented ethic. Focused on only accepting clients who are willing to make a serious commitment to changing their lives, the GJP ensures that the client moves beyond social, emotional and personal challenges that contributed to their legal problems. This article describes the unique factors of the GJP that have contributed to its continued success

The Fioretti (1973)

https://mushare.marian.edu/fio/1051/thumbnail.jp

Paper Session II-B - Early Results from the Space Telescope Imaging Spectograph

The STIS instrument was installed into HST in February 1997 during the Servicing Mission 2. It has completed checkout and is beginning its science program, and is working well. Several scientific demonstration observations were taken, illustrating some of the range of scientific uses and modes of observation of STIS. Keywords: Hubble, spectrograph, echelle, ultraviolet, optical, spectra, MAMA, black hole, galaxies, supernov

Milliarcsecond N-Band Observations of the Nova RS Ophiuchi: First Science with the Keck Interferometer Nuller

We report observations of the nova RS Ophiuchi (RS Oph) using the Keck Interferometer Nuller (KIN), approximately 3.8 days following the most recent outburst that occurred on 2006 February 12. These observations represent the first scientific results from the KIN, which operates in N-band from 8 to 12.5 microns in a nulling mode. By fitting the unique KIN data, we have obtained an angular size of the mid-infrared continuum of 6.2, 4.0, or 5.4 mas for a disk profile, gaussian profile (FWHM), and shell profile respectively. The data show evidence of enhanced neutral atomic hydrogen emission and atomic metals including silicon located in the inner spatial regime near the white dwarf (WD) relative to the outer regime. There are also nebular emission lines and evidence of hot silicate dust in the outer spatial region, centered at ! 17 AU from the WD, that are not found in the inner regime. Our evidence suggests that these features have been excited by the nova flash in the outer spatial regime before the blast wave reached these regions. These identifications support a model in which the dust appears to be present between outbursts and is not created during the outburst event. We further discuss the present results in terms of a unifying model of the system that includes an increase in density in the plane of the orbit of the two stars created by a spiral shock wave caused by the motion of the stars through the cool wind of the red giant star. These data show the power and potential of the nulling technique which has been developed for the detection of Earth-like planets around nearby stars for the Terrestrial Planet Finder Mission and Darwin missions.Comment: 41 pages, 10 figure