430 research outputs found
Dunstan Foundation paper by John Mant
Don Dunstan Oral History Project interview transcripts. Conditions of use: Anyone wanting to edit, reproduce, publish (including electronic publication on the Internet), broadcast, transmit, perform or adapt the interview in the interviewee's lifetime should send the interviewee a copy of anything written or makes reference to this article. Contact the Special Collections Librarian, Flinders University Library, [email protected] Foundation Paper by John Mant provided 30 April 2011, based on interview with Andrew Strickland and George Lewkowicz on 28 June 2010. John Mant was Ministerial Advisor and Director General HURA (South Australian Department of Housing, Urban and Regional Affairs) from 1976–1979
Migration Patterns of Double-crested Cormorants Wintering in the Southeastern United States
Migration patterns of Double-crested Cormorants (Phalacrocorax auritus) wintering in the southeastern U.S. are poorly understood. Movement data were analyzed from 28 cormorants captured in Alabama, Arkansas, Louisiana and Mississippi and equipped with satellite transmitters. Four (three immature, one adult) cormorants did not migrate and stayed in the southeastern U.S. throughout the year. During spring, cormorants captured in Alabama migrated east of the Mississippi River and primarily west of the Appalachian Mountains. Cormorants from Arkansas, Louisiana and Mississippi migrated north along the Mississippi River Valley, the Missouri River Valley and/or the Ohio River Valley. The earliest departure for spring migration was 26 March, whereas the latest departure was 12 May. Adult cormorants departed for spring migration earlier than immature cormorants. The average departure date for fall migration was 1 October. Mean duration of spring migration was twelve days, and cormorants traveled an average of 70 km per day
Reliability estimation of second life battery system power electronic topologies for grid frequency response applications
This paper is part of a project which aims to research the opportunities for the re-use of batteries after their primary use in low and ultra low carbon vehicles on the electricity grid system. One potential revenue stream is to provide primary/secondary/high frequency response to National Grid through market mechanisms via DNO's or Energy service providers. Some commercial battery energy storage systems (BESS) already exist on the grid system, but these tend to use costly new or high performance batteries. Second life batteries should be available at lower cost than new batteries but reliability becomes an important issue as individual batteries may suffer from degraded performance or failure. Therefore converter topology design could be used to influence the overall system reliability. A detailed reliability calculation of different single phase battery-to-grid converter interfacing schemes is presented. A suitable converter topology for robust and reliable BESS is recommended
The Theatre Missionary: Exploring the Early Career Teaching Experiences of Theatre Educators through Artistic Inquiry
For educators entering a fine arts classroom for the first time the transition can be quite difficult. Fine arts teachers are often the only specialists in their subject area at a school, placing them in a new situation without a mentor to guide them through the process. The difficulties can be exacerbated by the ideological, financial, and social marginalization of the arts in many schools. Despite the challenges faced by new fine arts educators, little research has focused specifically on their transitions into K-12 classrooms. To explore these transitional experiences this study was guided by the research question: How do K-12 theatre educators interpret their early-career teaching experiences through artistic inquiry? The study utilized Metaphor-Scenario (MetaScen), an arts-based qualitative methodology developed by the researcher, to gather and analyze data from the participants, seven American theatre teachers from K-12 schools. MetaScen allowed participants to reflect on their early career teaching experiences, represent them with a metaphor, and finally adapt the metaphor into a short performance piece. Data collection was then completed with semi-structured interviews of the participants. A multiple cycle coding method was utilized both to analyze data as it specifically referred to the question of teachers’ transitions to the K-12 theatre classroom as well as to explore the efficacy of MetaScen as part of the ongoing work to refine and improve its methodology. The study found that new theatre teachers felt a strong sense of isolation while undergoing a first year marked by extreme emotional swings. The teachers felt a close connection with their students but often lacked the support they needed to succeed and experienced challenges when their programs intersected with other facets of the school. These findings were linked by the primary discovery that new theatre teachers need to be strong advocates for theatre in order to successfully navigate the transition process. Recommendations were made to theatre education stakeholders for preparing new theatre educators both for the specific challenges of teaching as well as becoming strong advocates for theatre. Possible future directions and improvements for the MetaScen research methodology were also suggested
Low cost laboratory micro-grid hardware and control for electrical power systems teaching
There is a growing trend within education establishments to teach electrical power system theory within lectures and back this up with software simulation laboratory sessions. This allows the courses to be taught at a lower cost than if real hardware was implemented. However, the students that are graduating from these programs are missing out on the opportunity to learn about real equipment and issues such as health and safety of voltages above 50V, mismatching component sizes and accuracy. Bespoke electrical power systems teaching equipment is expensive to buy. This paper details a low cost hardware setup that can be used to enforce electrical power system theory. The proposed equipment employs real off-the shelf equipment with some interfacing units which can be reproduced by laboratory technicians to enhance the student learning experience by offering students experience of real machines operating on an electrical power systems network
Meshing radial networks at 11kV
This project evaluates the benefits of meshing existing 11kV radial networks in order to reduce losses and maximise the connection of low carbon distributed generation. These networks are often arranged as radial feeders with normally-open links between two of the feeders; the link is closed only to enable continuity of supply to an isolated portion of a feeder following a fault on the network. However, this link could also be closed permanently thus operating the network as a meshed topology under non-faulted conditions. The study will look at loss savings and the addition of distributed generation on a typical network under three different scenarios; traditional radial feeders, fixed meshed network and a dynamic meshed network. The networks are compared in terms of feeder losses, capacity, voltage regulation and fault levels
XMM-Newton Reflection Grating Spectrometer Observations of the Prototypical Starburst Galaxy M82
We present results from XMM-Newton Reflection Grating Spectrometer
observations of the prototypical starburst galaxy M82. These high resolution
spectra represent the best X-ray spectra to date of a starburst galaxy. A
complex array of lines from species over a wide range of temperatures is seen,
the most prominent being due to Lyman-alpha emission from abundant low Z
elements such as N, O, Ne, Mg and Si. Emission lines from Helium-like charge
states of the same elements are also seen in emission, as are strong lines from
the entire Fe-L series. Further, the OVII line complex is resolved and is seen
to be consistent with gas in collisional ionization equilibrium. Spectral
fitting indicates emission from a large mass of gas with a differential
emission measure over a range of temperatures (from 0.2 keV to 1.6 keV, peaking
at 0.7 keV), and evidence for super-solar abundances of several elements is
indicated. Spatial analysis of the data indicates that low energy emission is
more extended to the south and east of the nucleus than to the north and west.
Higher energy emission is far more centrally concentrated.Comment: 5 pages, 4 figures, MNRAS accepte
Low cost current measurement of three phase cables
© 2018 IEEE. Recent growth in embedded generation alongside the anticipated consumer uptake of electric vehicles (EVs) and heat pumps present new challenges for distribution networks. This includes greater fluctuation in electricity demand. Data from existing maximum demand indicators in distribution substations is inadequate to understand the spread of demand over time. Retro-fit datalogging solutions are available for substation monitoring, but cost typically >£1200, which would be difficult to justify for all distribution substations. This paper looks at the development of a novel low cost alternative designed for measuring load on three phase cables
Endoscopic Ultrasound in Pancreatic Cancer
Endoscopic ultrasound (EUS) has been developed over the course of the last 50Â years. This technique has been shown to improve diagnosis, provide more accurate local information with regards to staging and enhance prediction of surgical resectability. Further to this, minimally-invasive local techniques have been developed, and continue to be developed, to provide both active and palliative management within the treatment schema for pancreatic cancer (PC)
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