Results 21 to 30 of about 1,133,488 (268)

Energy Efficient Power Allocation for Downlink NOMA Heterogeneous Networks With Imperfect CSI

open access: yesIEEE Access, 2019
Non-orthogonal multiple access (NOMA) is a promising emerging technology that can significantly improve the utilization of spectrum and system capacity in heterogeneous wireless networks.
Xin Song   +4 more
doaj   +1 more source

Two-stage hybrid algorithm for recognition of industrial slab numbers with data quality improvement

open access: yesComplex & Intelligent Systems, 2022
As the unique recognition of each slab, the accurate recognition of slab number is especially critical for the hot rolling production process. However, the collected data are often of low quality due to poor production environment conditions, making ...
Qingqing Liu   +2 more
doaj   +1 more source

On the Optimality of Optimal Income Taxation [PDF]

open access: yesSSRN Electronic Journal, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +6 more sources

Joint Uplink and Downlink Resource Allocation for D2D Communications System

open access: yesFuture Internet, 2019
In cellular networks, device-to-device communications can increase the spectrum efficiency, but some conventional schemes only consider uplink or downlink resource allocation.
Xin Song   +4 more
doaj   +1 more source

Optimization and Optimizers for Adversarial Robustness

open access: yesCoRR, 2023
Empirical robustness evaluation (RE) of deep learning models against adversarial perturbations entails solving nontrivial constrained optimization problems. Existing numerical algorithms that are commonly used to solve them in practice predominantly rely on projected gradient, and mostly handle perturbations modeled by the $\ell_1$, $\ell_2$ and $\ell_\
Hengyue Liang   +5 more
openaire   +2 more sources

Secure Communication for Uplink Cellular Networks Assisted with Full-Duplex Device-to-Device User

open access: yesFuture Internet, 2020
In this paper, the secure communication based on the full-duplex (FD) device-to-device (D2D) in cellular networks is proposed. For the proposed scheme, the novel model is established, in which a D2D user is played as a relay operating in FD mode to ...
Xin Song, Lin Xia, Siyang Xu, Yue Wang
doaj   +1 more source

Analysis of Wellhead Uplift in Offshore Thermal Recovery by Using Finite Element Numerical Simulation

open access: yesJournal of Engineering, 2018
Pilot test of complex thermal fluid recovery technology was conducted in NB35-2 heavy oil field. Wellhead uplift was detected among some oil wells, and development of offshore thermal recovery technology could be restricted by the serious safety problems
Shexia Dong   +4 more
doaj   +1 more source

Constrained ear decompositions in graphs and digraphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2019
Ear decompositions of graphs are a standard concept related to several major problems in graph theory like the Traveling Salesman Problem. For example, the Hamiltonian Cycle Problem, which is notoriously N P-complete, is equivalent to deciding whether a ...
Frédéric Havet, Nicolas Nisse
doaj   +1 more source

Optimal Solvers for PDE-Constrained Optimization [PDF]

open access: yesSIAM Journal on Scientific Computing, 2010
Optimization problems with constraints which require the solution of a partial differential equation arise widely in many areas of the sciences and engineering, in particular in problems of design. The solution of such PDE-constrained optimization problems is usually a major computational task.
Tyrone Rees   +2 more
openaire   +4 more sources

Identification of tyrosine sulfation in the variable region of a bispecific antibody and its effect on stability and biological activity

open access: yesmAbs, 2023
Despite tyrosine sulfation being a relatively common post-translational modification (PTM) on the secreted proteins of higher eukaryotic organisms, there have been surprisingly few reports of this modification occurring in recombinant monoclonal ...
Christopher B. Lietz   +8 more
doaj   +1 more source

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