Location Management in Personal Communication Systems

Zhang, Jingyuan

doi:10.1002/9781118256114.ch44

Cited by 4 publications

(4 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…difficulties here are related to the manufacture of the 300 mm Â 20 mm 2 mm-thick Si crystals, the thickness of which needs to remain constant to within a few micrometers along the full length. New optimized profiles for the Bragg crystals have been specifically designed by finite-element analysis (Zhang, 2009) with expected slope error of 0.7 mrad peak-to-peak (PP) over the central 200 mm. The protocol for the manufacture of such crystals is constantly being improved but the focal spot sizes still depend on the portion of the polychromatic fan (or on the portion of the illuminated footprint on the crystal) that is selected.…”

Section: Figure 15mentioning

confidence: 99%

The Time-resolved and Extreme-conditions XAS (TEXAS) facility at the European Synchrotron Radiation Facility: the energy-dispersive X-ray absorption spectroscopy beamline ID24

et al. 2016

View full text Add to dashboard Cite

The European Synchrotron Radiation Facility has recently made available to the user community a facility totally dedicated to Time-resolved and Extremeconditions X-ray Absorption Spectroscopy -TEXAS. Based on an upgrade of the former energy-dispersive XAS beamline ID24, it provides a unique experimental tool combining unprecedented brilliance (up to 10 14 photons s À1 on a 4 mm Â 4 mm FWHM spot) and detection speed for a full EXAFS spectrum (100 ps per spectrum). The science mission includes studies of processes down to the nanosecond timescale, and investigations of matter at extreme pressure (500 GPa), temperature (10000 K) and magnetic field (30 T). The core activities of the beamline are centered on new experiments dedicated to the investigation of extreme states of matter that can be maintained only for very short periods of time. Here the infrastructure, optical scheme, detection systems and sample environments used to enable the mission-critical performance are described, and examples of first results on the investigation of the electronic and local structure in melts at pressure and temperature conditions relevant to the Earth's interior and in laser-shocked matter are given.

show abstract

Section: Figure 15mentioning

confidence: 99%

The Time-resolved and Extreme-conditions XAS (TEXAS) facility at the European Synchrotron Radiation Facility: the energy-dispersive X-ray absorption spectroscopy beamline ID24

et al. 2016

View full text Add to dashboard Cite

show abstract

“…χc2) ee Br (χc2) γ = 8.7 × 10 −3 , Br (χc2) ee Br (χc2) γ exp= (11.3 ± 0.4 ± 0.5) × 10 −3 . (6)arXiv:1709.02444v1 [hep-ph] Q distribution in comparison with BESSIII data[20,21] Normalized Q 2 distribution for χcJ → J/ψµµ (left figure) and χ bJ → Υµµ (right figure) decays…”

mentioning

confidence: 99%

Muon pair production in radiative decays of heavy quarkonia

Luchinsky

2018

Mod. Phys. Lett. A

View full text Add to dashboard Cite

show abstract

“…In fact, we have the following general lower bound, namely, 5 3 , on the absolute performance ratio of any online algorithm. After the submission of this article, Zhang [25] kindly informed us that he proved the same result about two decades ago but he never published it. The instances used in the proof below bear some similarity with the instance used in [14] to show that the absolute performance ratio of FF is no smaller than 5 3 .…”

Section: Algorithm Lpt-pmentioning

confidence: 90%

Improved bounds for batch scheduling with nonidentical job sizes

Dósa

Tan

Tuza

et al. 2014

Naval Research Logistics

View full text Add to dashboard Cite

Here, we revisit the bounded batch scheduling problem with nonidentical job sizes on single and parallel identical machines, with the objective of minimizing the makespan. For the single machine case, we present an algorithm which calls an online algorithm scriptP (chosen arbitrarily) for the one‐dimensional bin‐packing problem as a sub‐procedure, and prove that its worst‐case ratio is the same as the absolute performance ratio of scriptP . Hence, there exists an algorithm with worst‐case ratio 17 10 , which is better than any known upper bound on this problem. For the parallel machines case, we prove that there does not exist any polynomial‐time algorithm with worst‐case ratio smaller than 2 unless P = NP, even if all jobs have unit processing time. Then we present an algorithm with worst‐case ratio arbitrarily close to 2. © 2014 Wiley Periodicals, Inc. Naval Research Logistics 61: 351–358, 2014

show abstract

Location Management in Personal Communication Systems

Cited by 4 publications

References 23 publications

The Time-resolved and Extreme-conditions XAS (TEXAS) facility at the European Synchrotron Radiation Facility: the energy-dispersive X-ray absorption spectroscopy beamline ID24

The Time-resolved and Extreme-conditions XAS (TEXAS) facility at the European Synchrotron Radiation Facility: the energy-dispersive X-ray absorption spectroscopy beamline ID24

Muon pair production in radiative decays of heavy quarkonia

Improved bounds for batch scheduling with nonidentical job sizes

Contact Info

Product

Resources

About