757 research outputs found
UK Energy Policy 1980-2010: A history and lessons to be learnt
UK Energy Policy 1980-2010: A history and lessons to be learn
The unfolding low-carbon transition in the UK electricity system
The paper explores three periods in the UK electricity consumption–production system since World War II. The first two involved the development of an increasingly centralized, integrated system that provided electricity to meet growing post-war demand. It saw two major changes in governance, first to nationalization, then to privatization and liberalization. The third period started at the turn of the Century, driven by increasing evidence of the impact of fossil fuels on the Earth’s climate. The paper focuses on the drivers of change, within the UK and externally, and how they affected governance, technology deployment, and industry structure. It draws on the multi-level perspective and the concepts of governance and technological branching points to inform the analysis of each period. It shows that there is a considerable distance to travel toward a truly sustainable electricity system
How shall we know them? Capturing the diversity of difference in Australian doctoral candidates and their experiences.
Although there is general agreement that doctoral students and their experiences are diverse, in what respect this is true is in question. Most institutional practices in the collection of data in this regard have been established to satisfy government reporting requirements and concerns, such as funding, participation and equity, and efficiency. Missing is more detailed and nuanced quantitative data and analysis, complementary to those of qualitative studies, to illuminate the nature and extent of doctoral student diversity and the effects on the quality of their candidacy. Drawing on select data and findings from a national survey of Australian doctoral candidates conducted in 2005, the article questions the utility of commonly used categories for quantitative data collection and analysis, and their use as the basis of (sub)groupings to represent doctoral diversity. In so doing, it presents a more complex picture of doctoral candidature that depicts the idiosyncrasy of the individual experience, as well as generic characteristics. Central to the argument is that doctoral candidates are diversely different, bringing varying goals, expectations, career histories and family and community responsibilities beyond the academy, that shape their engagement with their candidacy
Exploring the extent and nature of the diversity of the doctoral population in Australia : A profile of the respondents to a 2005 national survey
Although there is general agreement that diversity is a feature of doctoral education in Australia, there are various forms and levels of diversity, many of which are not captured by analyses that rely on categories for analysing the doctoral education population that are those commonly used in education at the undergraduate level, such as sex, age, mode of study, type of enrolment, citizenship, and Broad Field of Study, etc. These categories primarily reflect concerns to do with funding and issues of participation and equity. Our analysis of data from a national survey of doctoral candidates carried out in 2005 as part of a Linkage Grant project “Reconceptualising the doctoral experience’, suggests that not all of these categories are relevant to critical concerns for doctoral education. Nor do analyses at a macro-level represent the particularity of the doctoral experience. They can mask the reality of a highly variable student population, and one that is not necessarily represented accurately or helpfully by ascribing group identities.<br /
Report of NSF Workshop Series on Scientific Software Security Innovation Institute
Many individuals attended these workshops and contributed to the writing of this report. They are named in the report itself.Over the period of 2010‐2011, a series of two workshops were held in response to NSF Dear Colleague Letter NSF 10‐050 calling for exploratory workshops to consider requirements for Scientific Software Innovation Institutes (S2I2s). The specific topic of the workshop series was the potential benefits of a security-‐focused software institute that would serve the entire NSF research and development community. The first workshop was held on August 6th, 2010 in Arlington, VA and represented an initial exploration of the topic. The second workshop was held on October 26th, 2011 in Chicago, IL and its goals were to 1) Extend our understanding of relevant needs of MREFC and large NSF Projects, 2) refine outcome from first workshop with broader community input, and 3) vet concepts for a trusted cyberinfrastructure institute. This report summarizes the findings of these workshops.This material is based upon work supported by the National Science Foundation under grant number 1043843. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science
Ariel - Volume 10 Number 5
Executive Editors
Madalyn Schaefgen
David Reich
Business Manager
David Reich
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CAHS
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World
Mark Zwanger
Features Editors
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Photography and Sports Editor
Stuart Singer
Commons Editor
Brenda Peterso
Design and Build of Reactor Simulator for Fission Surface Power Technology Demonstrator Unit
The Nuclear Systems Team at NASA Marshall Space Flight Center (MSFC) focuses on technology development for state of the art capability in non-nuclear testing of nuclear system and Space Nuclear Power for fission reactor systems for lunar and Mars surface power generation as well as radioisotope power systems for both spacecraft and surface applications. Currently being designed and developed is a reactor simulator (RxSim) for incorporation into the Technology Demonstrator Unit (TDU) for the Fission Surface Power System (FSPS) Program, which is supported by multiple national laboratories and NASA centers. The ultimate purpose of the RxSim is to provide heated NaK to a pair of Stirling engines in the TDU. The RxSim includes many different systems, components, and instrumentation that have been developed at MSFC while working with pumped NaK systems and in partnership with the national laboratories and NASA centers. The main components of the RxSim are a core, a pump, a heat exchanger (to mimic the thermal load of the Stirling engines), and a flow meter for tests at MSFC. When tested at NASA Glenn Research Center (GRC) the heat exchanger will be replaced with a Stirling power conversion engine. Additional components include storage reservoirs, expansion volumes, overflow catch tanks, safety and support hardware, instrumentation (temperature, pressure, flow) for data collection, and power supplies. This paper will discuss the design and current build status of the RxSim for delivery to GRC in early 2012
Exile Vol. XI No. 2
FICTION
Don\u27t Break Bread with Strangers by Thomas Getz 5-12
Story by Kathy Swiger 17-20
The Last of the Flag Pole Sitters 25-29
POETRY
Muttering: A Letter by Gretchen Schenk 14-15
Poem by Jane Pearson 20
Marina in March by Karen Combs 21
of the pope too slow in recovery by Bill C. West Jr. 22
Poem by Jim Nichols 23
Poem by Judy Strange 23
Haiku by Bonnie Bishop 29
ART
Pen and Ink by Dan Thaxton 4
Linocut by Richard Machlan 13
Etching by Lynne Wiley 16
Woodcut by Lela Giles 22
Charcoal by Carol Kubie 2
Options for Affordable Fission Surface Power Systems
Fission surface power systems could provide abundant power anywhere on free surface of the moon or Mars. Locations could include permanently shaded regions on the moon and high latitudes on Mars. To be fully utilized; however, fission surface power systems must be safe, have adequate performance, and be affordable. This paper discusses options for the design and development of such systems
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