E-Health Demystified: An E-Government Showcase

Kovač, Mario

doi:10.1109/mc.2014.282

Cited by 31 publications

(26 citation statements)

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“…These studies also highlight -even if using different density estimators -a strong density dependence of the quiescent satellite fractions at a given stellar mass. In contrast, for the density dependence of quiescent central galaxies, the situation is less clear: Peng et al (2012) and Kovač (2014) find no significant density dependence on top of the stellar mass dependence, while the quiescent fractions of low mass centrals depend, albeit weakly, on density in the study of Woo et al (2013). These differences may be ascribed to different estimators for quiescence (e.g.…”

Section: Comparison Of Our Observational Results To Previous Studiesmentioning

confidence: 85%

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The influence of the environmental history on quenching star formation in a Λ cold dark matter universe

Hirschmann¹,

Lucia²,

Wilman³

et al. 2014

Monthly Notices of the Royal Astronomical Society

113

145

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We present a detailed analysis of the influence of the environment and of the environmental history on quenching star formation in central and satellite galaxies in the local Universe. We take advantage of publicly available galaxy catalogues obtained from applying a galaxy formation model to the Millennium simulation. In addition to halo mass, we consider the local density of galaxies within various fixed scales. Comparing our model predictions to observational data (SDSS), we demonstrate that the models are failing to reproduce the observed density dependence of the quiescent galaxy fraction in several aspects: for most of the stellar mass ranges and densities explored, models cannot reproduce the observed similar behaviour of centrals and satellites, they slightly under-estimate the quiescent fraction of centrals and significantly overestimate that of satellites. We show that in the models, the density dependence of the quiescent central galaxies is caused by a fraction of "backsplash" centrals which have been satellites in the past. The observed stronger density dependence on scales of 0.2 − 1 Mpc may, however, indicate additional environmental processes working on central galaxies. Turning to satellite galaxies, the density dependence of their quiescent fractions reflects a dependence on the time spent orbiting within a parent halo, correlating strongly with halo mass and distance from the halo centre. Comparisons with observational estimates suggest relatively long gas consumption time scales of roughly 5 Gyr in low mass satellite galaxies. The quenching time scales decrease with increasing satellite stellar mass. Overall, a change in modelling both internal processes and environmental processes is required for improving currently used galaxy formation models.

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Section: Comparison Of Our Observational Results To Previous Studiesmentioning

confidence: 85%

“…Peng et al 2012;Kovač 2014 andWoo et al 2013). These studies also highlight -even if using different density estimators -a strong density dependence of the quiescent satellite fractions at a given stellar mass.…”

Section: Comparison Of Our Observational Results To Previous Studiesmentioning

confidence: 99%

The influence of the environmental history on quenching star formation in a Λ cold dark matter universe

Hirschmann¹,

Lucia²,

Wilman³

et al. 2014

Monthly Notices of the Royal Astronomical Society

113

145

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“…The heterogeneous core MANGO HPC transcoding application platform can therefore truly demonstrate how the novel MANGO HPC architecture may become dominant architecture for applications that generate more than 80% of global internet traffic. The application of same algorithms to medical domains where interoperability requirements are defined (see [24]) is also under consideration. Fig.…”

Section: A Mango Architecture Online Video Transcoding Application Pmentioning

confidence: 99%

Enabling HPC for QoS-sensitive Applications: The MANGO Approach

Flich

Agosta

Ampletzer³

et al. 2016

Proceedings of the 2016 Design, Automation &Amp; Test in Europe Conference &Amp; Exhibition (DATE)

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Abstract-In this paper, we provide an overview of the MANGO project and its goal. The MANGO project aims at addressing power, performance and predictability (the PPP space) in future High-Performance Computing systems. It starts from the fundamental intuition that effective techniques for all three goals ultimately rely on customization to adapt the computing resources to reach the desired Quality of Service (QoS). From this starting point, MANGO will explore different but interrelated mechanisms at various architectural levels, as well as at the level of the system software. In particular, to explore a new positioning across the PPP space, MANGO will investigate system-wide, holistic, proactive thermal and power management aimed at extreme-scale energy efficiency.

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“…Medical imaging applications increasingly involve 3D images, the rendering of which is highly memory intensive and sensitive to optimization through specialized processing units [17]. Latency requirements are varied, with critical operations having strict real-time constraints, and background tasks having more relaxed requirements.…”

Section: Application Scenariosmentioning

confidence: 99%