نتایج جستجو برای: cluster mission
تعداد نتایج: 236039 فیلتر نتایج به سال:
We present a list of 15 clusters of galaxies, serendipitously detected by the XMM Cluster Survey (XCS), that have a high probability of detection by the Planck satellite. Three of them already appear in the Planck Early Sunyaev–Zel’dovich (ESZ) catalogue. The estimation of the Planck detection probability assumes the flat Lambda cold dark matter ( CDM) cosmology most compatible with 7-year Wilk...
BACKGROUND Persons with disability are often marginalised and excluded from international development efforts. This case study reviews the success of Uttarakhand Cluster of development NGOs in changing organisational behaviour towards being disability inclusive in their development (DID) activities. METHODS A triangulation of qualitative research methods was used, including key informant inte...
We present the results of three ROSAT HRI observations of AGN expected to reside in clusters of galaxies. Although the exposures were truncated by the premature end of the ROSAT mission, valuable information could be achieved which greatly improved upon the previous PSPC results. For RGB 1745+398 we could separate the cluster emission from that of the BL Lac and could confirm the cluster parame...
Multi-module Cyber-Physical Systems (CPSs), such as satellite clusters, swarms of Unmanned Aerial Vehicles (UAV), and fleets of Unmanned Underwater Vehicles (UUV) are examples of managed distributed real-time systems where mission-critical applications, such as sensor fusion or coordinated flight control, are hosted. These systems are dynamic and reconfigurable, and provide a “CPS cluster-as-a-...
Results and lessons learned from the implementation of a novel ultra low-latency geo-routing scheme are presented in this paper. The geo-routing scheme is intended for team-based mobile cyber-physical systems whereby a cluster of unmanned vehicles (robots) are deployed to accomplish a critical mission under human supervision. The contention-free nature of the developed scheme lends itself to jo...
Wireless Sensor Networks; Clustering; Energy; Mission cost; Genetic algorithm Abstract In Wireless Sensor Networks (WSNs), the network’s performance is usually influenced by energy constraint. Through a well-designed clustering algorithm, WSN’s energy consumption can be decreased evidently. In this paper, an Improved Multi-Objective Weighted Clustering Algorithm (IMOWCA) is proposed using addit...
Abstract As an open cluster orbits the Milky Way, gravitational fields distort it, stripping stars from core and forming tidal tails. Recent work has identified tails of Praesepe cluster; we explore rotation periods as a way to confirm these candidate members. In clusters, period distribution evolves over time due magnetic braking. Since tidally stripped originally formed within cluster, they s...
System management for any organization can be a challenge, but satellite projects present their own issues. I will be presenting the network and system architecture chosen to support the scientists in the Chandra X-ray Center. My group provides the infrastructure for science data processing, mission planning, user support, and archive support and software development. Our challenge is to create...
Cyber Mission Resilience (CMR) is a significant step in the evolution of IT security. Not only does it reduce the complexity and cost of securing today’s IT systems, it helps prioritize security-related activities. The focus on mission resilience extends the scope of past security practices while simultaneously honing in on mission-critical systems, networks, and processes. This article explore...
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