Results 171 to 180 of about 32,745 (219)
The properties of early-type galaxies in the Ursa Major cluster [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 Using SDSS-DR7 and NASA/IPAC Extragalactic Database spectroscopic data, we identify 166 galaxies as members of the Ursa Major cluster with Mr < -13.5 mag.
Mina Pak +2 more
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Spectroscopic properties of cool Ursa Major group members [PDF]
Astronomy and Astrophysics, 2009 Until now, most members of the Ursa Major (UMa) group of stars have been identified by means of kinematic criteria. However, in many cases kinematic criteria alone are insufficient to ascertain, whether an individual star is really a member of this group.
M Ammler-Von Eiff, E W Guenther
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Details of the Spatial Structure and Kinematics of the Castor and Ursa Major Streams
Open Astronomy, 2015 A list of the Castor stream members is compiled based on the data from various authors. The membership probabilities for some stars are revised based on the individual apex, multiplicity, observational errors, and peculiarity.
S V Vereshchagin, N V Chupina
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ACM Transactions on Internet Technology, 2020
With the increasing number of users in blockchain-based cryptocurrencies, the public has raised the demand for transaction throughput, and many protocols are designed to improve the throughput following the Nakamoto consensus.
Na Ruan, Dongli Zhou, Weijia Jia 0001
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With the increasing number of users in blockchain-based cryptocurrencies, the public has raised the demand for transaction throughput, and many protocols are designed to improve the throughput following the Nakamoto consensus.
Na Ruan, Dongli Zhou, Weijia Jia 0001
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ACM Transactions on Storage, 2013
Enterprise and cloud data centers are comprised of tens of thousands of servers providing petabytes of storage to a large number of users and applications. At such a scale, these storage systems face two key challenges: (1) hot-spots due to the dynamic popularity of stored objects; and (2) high operational costs due to power and cooling ...
You, GW, Hwang, SW, Jain, N
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Enterprise and cloud data centers are comprised of tens of thousands of servers providing petabytes of storage to a large number of users and applications. At such a scale, these storage systems face two key challenges: (1) hot-spots due to the dynamic popularity of stored objects; and (2) high operational costs due to power and cooling ...
You, GW, Hwang, SW, Jain, N
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Proceedings of the Fourteenth EuroSys Conference 2019, 2019
This paper presents URSA, a hybrid block store that provides virtual disks for various applications to run efficiently on cloud VMs. Trace analysis shows that the I/O patterns served by block storage have limited locality to exploit. Therefore, instead of using SSDs as a cache layer, URSA proposes an SSD-HDD-hybrid storage structure that directly ...
Huiba Li +8 more
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This paper presents URSA, a hybrid block store that provides virtual disks for various applications to run efficiently on cloud VMs. Trace analysis shows that the I/O patterns served by block storage have limited locality to exploit. Therefore, instead of using SSDs as a cache layer, URSA proposes an SSD-HDD-hybrid storage structure that directly ...
Huiba Li +8 more
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On the spectrum of Ursae Majoris
American Journal of Science, 1890by Edward C ...
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Superhumps in a Peculiar SU Ursae Majoris–Type Dwarf Nova, ER Ursae Majoris
The Astrophysical Journal, 1999We report the photometry of a peculiar SU Ursae Majoris-type dwarf nova, ER Ursae Majoris, for 10 nights during 1998 December and 1999 March, covering a complete rise to the supermaximum and a normal outburst cycle. Superhumps have been found during the rise to the superoutburst.
, Gao, , Li, , Wu, , Zhang, , Li
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The extended ‘stellar halo’ of the Ursa Minor dwarf galaxy
Monthly Notices of the Royal Astronomical Society, 2023Federico Sestito, Kim A Venn
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