6,699 research outputs found

    Performance assessment of tariff-based air source heat pump load shifting in a UK detached dwelling featuring phase change-enhanced buffering

    Get PDF
    Using a detailed building simulation model, the amount of thermal buffering, with and without phase change material (PCM), needed to time-shift an air source heat pump's operation to off-peak periods, as defined by the UK 'Economy 10' tariff, was investigated for a typical UK detached dwelling. The performance of the buffered system was compared to the case with no load shifting and with no thermal buffering. Additionally, the load shifting of a population of buffered heat pumps to off-peak periods was simulated and the resulting change in the peak demand on the electricity network was assessed. The results from this study indicate that 1000 L of hot water buffering or 500 L of PCM-enhanced hot water buffering was required to move the operation of the heat pump fully to off-peak periods, without adversely affecting the provision of space heating and hot water for the end user. The work also highlights that buffering and load shifting increased the heat pump's electrical demand by over 60% leading to increased cost to the end user and increased CO2 emissions (depending on the electricity tariff applied and time varying CO2 intensity of the electricity generation mix, respectively). The study also highlights that the load-shifting of populations of buffered heat pumps wholly to off-peak periods using crude instruments such as tariffs increased the peak loading on the electrical network by over 50% rather than reducing it and that careful consideration is needed as to how the load shifting of a group of heat pumps is orchestrated

    David Foster Wallace and New Sincerity Aesthetics : A Reply to Edward Jackson and Joel-Nicholson-Roberts

    Get PDF
    This essay responds to the critique of my work advanced by Edward Jackson and Joel Nicholson-Roberts in “White Guys: Questioning 'Infinite Jest'’s New Sincerity,” published in 'Orbit' in March 2017. In addition to refuting their misrepresentations of my work, I provide a positive re-articulation of my core reading of the New Sincerity aesthetic, outlining its connection to concepts such as affect, intention, undecidability, literature, and neoliberalism

    IMPLEMENTATION AND DISTRIBUTION OF BIRD DETECTION RADAR AND BIRD HAZARD ADVISORY INFORMATION FOR MILITARY AND COMMERCIAL AVIATION

    Get PDF
    Over the past five years, development of mobile bird detection radars for use as real-time aircraft bird strike avoidance systems has moved from research and development into active deployment as an operational technology. The MERLIN™ bird detection radar, with an update rate as frequent as once per second, is currently deployed as production-model technology with 15 systems operating in the U.S., Canada, Scotland, England and The Netherlands. Deployment challenges over the past two years have included “how” and “in what forms” to deliver the real-time and near real-time information to controllers, wildlife control units, pilots and decision makers so that bird hazards can be more reliably detected, strike risk reduced, bird control efficiency increased, and to develop detailed historical resource databases to support long-term management actions. MERLIN systems are currently being used in civil, military and landfill environments using widearea wireless distribution of data displays and products in real-time direct to airfield operations, planners and bird control units. On-going operating experience is helping to define specific concepts-of-operations (CONOPS) for each type of environment as to how the technology can be used and how and in what form bird radar information is integrated into current operational risk management and flight safety programs

    IMPLEMENTATION AND DISTRIBUTION OF BIRD DETECTION RADAR AND BIRD HAZARD ADVISORY INFORMATION FOR MILITARY AND COMMERCIAL AVIATION

    Get PDF
    Over the past five years, development of mobile bird detection radars for use as real-time aircraft bird strike avoidance systems has moved from research and development into active deployment as an operational technology. The MERLIN™ bird detection radar, with an update rate as frequent as once per second, is currently deployed as production-model technology with 15 systems operating in the U.S., Canada, Scotland, England and The Netherlands. Deployment challenges over the past two years have included “how” and “in what forms” to deliver the real-time and near real-time information to controllers, wildlife control units, pilots and decision makers so that bird hazards can be more reliably detected, strike risk reduced, bird control efficiency increased, and to develop detailed historical resource databases to support long-term management actions. MERLIN systems are currently being used in civil, military and landfill environments using widearea wireless distribution of data displays and products in real-time direct to airfield operations, planners and bird control units. On-going operating experience is helping to define specific concepts-of-operations (CONOPS) for each type of environment as to how the technology can be used and how and in what form bird radar information is integrated into current operational risk management and flight safety programs

    A multidisciplinary investigation into the talent identification and development process in an English football academy

    Get PDF
    Introduction: The purpose of a player development pathway is to realise the most effective methods to support young individuals to maximise their potential (MacNamara & Collins, 2015). Within a modern football academy setting, the essential developmental characteristics are often termed environmental, psychological, sociological, physiological, technical, and tactical attributes (Sarmento et al., 2018). Although these factors have been explained to independently facilitate the acquisition of expert performance, fully-integrated multidisciplinary evidence from an English context is unknown. Therefore, the aim of this study was two-fold; firstly, to analyse these respective features to determine what outcomes support greater age-specific performance within the Foundation Development Phase (FDP; under-9 to 11s) and Youth Development Phase (YDP; under-12 to 16s) at an English professional football academy. Following this investigation, this thesis examined what characteristics facilitated age-specific development across two football seasons within the same group. Methods: During the first season, a total of 98 outfield academy players (FDP n=40; YDP n=58) participated. Two professional coaches from each age group (n=14) ranked their players from top to bottom in relation to current ability from a holistic perspective. This created a linear classification with a group of ‘high-performers’ (top third) and ‘low-performers’ (bottom third) within both the FDP and YDP. Results were standardised using z-scores and the assumptions were tested using a two-tailed independent samples t-test. A total of 87 outfield players who progressed into the second season were further analysed within their respective phase (FDP n=36; YDP n=51). A combination of 34 holistic factors, that discriminated high- and low-performers in the initial investigation, were measured at two time points across two football seasons with the Participation History Questionnaire (PHQ), Psychological Characteristics for Developing Excellence Questionnaire (PCDEQ), socio-economic status, growth and maturation data, physical performance, technical tests, match analysis statistics, perceptual-cognitive expertise (PCE), and game test situations. Development was measured by comparing the delta change between the overall player profile scores from two seasonal reports. Stepwise regression analyses were conducted to assess the predictive capability of these variables on overall development. Results: Multiple factors from environmental, psychological, sociological, physiological, technical, and tactical examinations significantly discriminated high- and low-performers, within both the FDP and YDP. Following these initial findings, developmental results illustrated significant technical and tactical characteristics within the FDP, whilst significant environmental, physiological, technical, and tactical attributes were observed within the YDP. When focussing on these factors combined, total touches change (p=0.023), taking advantage of openings quality (p=0.003), and PCE ‘post’ score change (p=0.029) explained a combined 11.5% of the variance within the FDP. Within the YDP, PCE ‘at’ score (p=0.21), total sports played change (p=0.008), and total match-play hours (p=0.009) explained a combined 34.1% of the variance. Discussion: Identifying talented players as young as 8 years of age is a complex and holistic process. Thus, academy coaches and practitioners must understand the significant features, such as practice history and multi-sport engagement, psychological characteristics, socio-economic factors, physical performance abilities, technical attributes, and tactical decision making when identifying and recruiting individuals. From a talent development viewpoint, results from the FDP support the importance of technical and tactical development during middle childhood compared to other influential factors. From a YDP perspective, results support the significance of the environment players are exposed to, whilst also illustrating the importance of PCE as a key ingredient within adolescence, to support greater overall development. Therefore, professional football academies are encouraged to deliver technical and tactical specific developmental activities within the FDP, whilst offering a substantial games programme, alongside other opportunities to participate in multi-sport activities across both age phases, to support superior development. Further evidence is needed within an English context, through collaboration with other academy environments, to support these findings, whilst greater longitudinal data is also required to understand which of these characteristics are necessary to ultimately achieve senior professional status.University of ExeterOpen Innovation PlatformExeter City Football Clu

    The Inherent Limitations Doctrine: How the Specification May Inherently Limit the Scope of the Claims, 1 J. Marshall Rev. Intell. Prop. L. 124 (2001)

    Get PDF
    In several recent decisions, the United States Court of Appeals for the Federal Circuit has established that a patentee’s express words, as disclosed in the specification, may be read into the claims to limit the scope of the invention. In addition, the Federal Circuit in Scimed and Bell Atlantic has held that not only may a patentee explicitly limit a claim term in the specification, but she may also do so “by implication.” Thus, a specification may inherently limit the scope of a claimed invention constituting what the author calls the “inherent limitations doctrine.” This new wrinkle in claim interpretation will likely produce a wave of confusion for future litigants and judges. This Comment proposes that if the Federal Circuit does apply the inherent limitations doctrine at all, the court should do so prospectively. This Comment also proposes a set of factors the court can use to determine where to apply the doctrine
    • …
    corecore