4,830 research outputs found

    Foreword

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    Supporting organizational change: Fostering a more flexible approach to course delivery

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    Queensland University of Technology (QUT) adopted a flexible delivery policy in 1996. The main objective of the policy was to develop a more studentā€centred approach to teaching and learning, since QUTs student population is predominantly partā€time, ā€˜mature ageā€™, already in employment, and very diverse in cultural and academic background For many staff, the policy was threatening: staff were uncertain where they might begin to adapt their traditional faceā€toā€face teaching approaches to overcome the limitations associated with time and place, and they were fearful that their teaching role and academic expertise might be superseded by a technological alternative. They lacked confidence to incorporate appropriate and relevant technologies in an innovative and effective way to support student learning objectives. This paper focuses on the implementation of QUTs policy. It highlights the role of a central services department, Teaching and Learning Support Services (TALSS), in providing training and fostering cultural change across the university. The implementation was guided by a model of flexible education and a set of principles underpinning a ā€˜whole of organization approach to flexible delivery. Strategies for supporting innovators, sharing experience across disciplines, coā€ordinating and focusing the support of educational developers, and embedding staff development processes are outlined The success and limitations of the organizational change strategy are summarized as ā€˜lessons learnedā€™ to inform ongoing institutional policy and procedures

    Junior Recital: Ryan Hart, tuba

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    Senior Recital: Ryan Hart, tuba

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    Deterrence And Fairness: Why The Current Financial Crisis Demands A Prouct-Oriented Relaxation Of The PSLRA

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    The potential role of genetic markers in talent identification and athlete assessment in elite sport

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    In elite sporting codes, the identification and promotion of future athletes into specialized talent pathways is heavily reliant upon objective physical, technical, and tactical characteristics, in addition to subjective coach assessments. Despite the availability of a plethora of assessments, the dependence on subjective forms of identification remain commonplace in most sporting codes. More recently, genetic markers, including several single nucleotide polymorphisms (SNPs), have been correlated with enhanced aerobic capacity, strength, and an overall increase in athletic ability. In this review, we discuss the effects of a number of candidate genes on athletic performance, across single-skilled and multifaceted sporting codes, and propose additional markers for the identification of motor skill acquisition and learning. While displaying some inconsistencies, both the ACE and ACTN3 polymorphisms appear to be more prevalent in strength and endurance sporting teams, and have been found to correlate to physical assessments. More recently, a number of polymorphisms reportedly correlating to athlete performance have gained attention, however inconsistent research design and varying sports make it difficult to ascertain the relevance to the wider sporting population. In elucidating the role of genetic markers in athleticism, existing talent identification protocols may significantly improveā€”and ultimately enableā€”targeted resourcing in junior talent pathways

    Thermophysical Phenomena in Metal Additive Manufacturing by Selective Laser Melting: Fundamentals, Modeling, Simulation and Experimentation

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    Among the many additive manufacturing (AM) processes for metallic materials, selective laser melting (SLM) is arguably the most versatile in terms of its potential to realize complex geometries along with tailored microstructure. However, the complexity of the SLM process, and the need for predictive relation of powder and process parameters to the part properties, demands further development of computational and experimental methods. This review addresses the fundamental physical phenomena of SLM, with a special emphasis on the associated thermal behavior. Simulation and experimental methods are discussed according to three primary categories. First, macroscopic approaches aim to answer questions at the component level and consider for example the determination of residual stresses or dimensional distortion effects prevalent in SLM. Second, mesoscopic approaches focus on the detection of defects such as excessive surface roughness, residual porosity or inclusions that occur at the mesoscopic length scale of individual powder particles. Third, microscopic approaches investigate the metallurgical microstructure evolution resulting from the high temperature gradients and extreme heating and cooling rates induced by the SLM process. Consideration of physical phenomena on all of these three length scales is mandatory to establish the understanding needed to realize high part quality in many applications, and to fully exploit the potential of SLM and related metal AM processes

    The Orion GN and C Data-Driven Flight Software Architecture for Automated Sequencing and Fault Recovery

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    The Orion Crew Exploration Vehicle (CET) is being designed to include significantly more automation capability than either the Space Shuttle or the International Space Station (ISS). In particular, the vehicle flight software has requirements to accommodate increasingly automated missions throughout all phases of flight. A data-driven flight software architecture will provide an evolvable automation capability to sequence through Guidance, Navigation & Control (GN&C) flight software modes and configurations while maintaining the required flexibility and human control over the automation. This flexibility is a key aspect needed to address the maturation of operational concepts, to permit ground and crew operators to gain trust in the system and mitigate unpredictability in human spaceflight. To allow for mission flexibility and reconfrgurability, a data driven approach is being taken to load the mission event plan as well cis the flight software artifacts associated with the GN&C subsystem. A database of GN&C level sequencing data is presented which manages and tracks the mission specific and algorithm parameters to provide a capability to schedule GN&C events within mission segments. The flight software data schema for performing automated mission sequencing is presented with a concept of operations for interactions with ground and onboard crew members. A prototype architecture for fault identification, isolation and recovery interactions with the automation software is presented and discussed as a forward work item
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