We consider the contribution of neutron stars and black holes to the dynamical mass of galactic halos. In particular, we show that if these compact objects were produced by an early generation of stars with initial metallicity ∼< 10 Z⊙, they can contribute up to 30–40% of the Galactic halo mass without violating constraints from chemical evolution. This scenario is consistent with the recent re...

This paper describes the German-English translation system developed by the ARK research group at Carnegie Mellon University for the Sixth Workshop on Machine Translation (WMT11). We present the results of several modeling and training improvements to our core hierarchical phrase-based translation system, including: feature engineering to improve modeling of the derivation structure of translat...

A study of the effect of deformation and pairing on the development of halo nuclei is presented. Exploratory three-body core + n + n calculations show that both the NN interaction and the deformation/excitation of the core hinder the formation of the halo. Preliminary self-consistent mean-field calculations are used to search for regions in the nuclear chart where halos could potentially develo...

The three-body description of two-neutron halo nuclei relies on the two-body interactions between the constituents. In order to provide constraints on calculations devoted to 14 Be and 17 B, the neutron unbound states of 13 Be and 16 B have been investigated by one-proton knockout. The experimental techniques and results are discussed here.

B. V. Danilin,1,* J. S. Vaagen,1 T. Rogde,1 S. N. Ershov,1,† I. J. Thompson,2,3 and M. V. Zhukov4 (RNBT Collaboration) 1Department of Physics and Technology, University of Bergen, Bergen, Norway 2Physics Department, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom 3Lawrence Livermore National Laboratory, P.O. Box 808, L-414, Livermore, California 94551, USA 4Fundamental Physics, ...

Over two decades, a problem of location dependent has been focused for improving the communication Bandwidth-Power Efficiency of homogeneous networks. The efficiencies of communication links are weakened by the Hidden Terminal Problem.  Thus we propose a Fine – Tune Strategy for analyzing the On-Off communication region. We were observed that the proposed technique had been able to track and mo...

There is a growing interest in designing high-performance network devices to perform packet processing at flow level. Applications such as stateful access control, deep inspection and flow-based load balancing all require efficient flow-level packet processing. In this paper, we present a design of high-performance flow-level packet processing system based on multi-core network processors. Main...

The standardization of the first releases of third-generation cellular systems was finalized in ETSI/3GPP Release 99. Two major systems in this standard are the universal mobile telecommunications system (UMTS) and the global system for mobile communication/enhanced data rates for global evolution (GSM/EDGE). UMTS has been tailored to offer thirdgeneration services—that is, high user data rates...