Results 81 to 90 of about 42,588 (304)

Low-rank optimization for distance matrix completion [PDF]

open access: yes, 2011
peer reviewedThis paper addresses the problem of low-rank distance matrix completion. This problem amounts to recover the missing entries of a distance matrix when the dimension of the data embedding space is possibly unknown but small compared to the
B. Mishra   +5 more
core   +2 more sources

Channel state information based efficient database construction for indoor localisation

open access: yesThe Journal of Engineering, 2019
The popularisation of fingerprinting localisation technology has been hindered because of two major hurdles: (i) the accuracy bottleneck caused by unreliable location fingerprints and (ii) the huge effort required to construct a fingerprints database (or
Xiyan Tian, Chao Wang, Liufeng Du
doaj   +1 more source

Inverse M-matrix completion problem with zeros in the inverse completion

open access: yesApplied Mathematics Letters, 2002
A partially specified matrix \(A\) is said to be combinatorially symmetric if \(a_{ij}\) is specified if and only if \(a_{ji}\) is specified. The completion problem considered is to find the unspecified elements such that its completion is the inverse of an \(M\)-matrix. In the combinatorially symmetric case, this was solved by \textit{C. R.
Cristina Jordán   +2 more
openaire   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

open access: yesAdvanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut   +16 more
wiley   +1 more source

Influence of Surface Finish on the Tribological Performance of AlTiBN Coatings Deposited on Forming Tools

open access: yesAdvanced Engineering Materials, EarlyView.
Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver   +9 more
wiley   +1 more source

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

open access: yesAdvanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon   +3 more
wiley   +1 more source

UN ALGORITMO SAEM PARA EL PROBLEMA DE COMPLETACIÓN DE MATRICES // A SAEM ALGORITHM FOR MATRIX COMPLETION PROBLEMS

open access: yesPublicaciones en Ciencias y Tecnología, 2015
In this work we dealt with matrix completion problem. This problem arises in different fields, for example, systems and control theory, image processing and collaborative filtering. Given a probabilistic matrix factorization model, we present an approach
Anaís Frangeline Acuña Sosa   +1 more
doaj  

Integrated techniques for rapid and highly-efficient development and production of ultra-deep tight sand gas reservoirs of Keshen 8 Block in the Tarim Basin

open access: yesNatural Gas Industry B, 2017
The unusually ultra-deep and ultra-high-pressure gas reservoirs in the Keshen 8 Block on the Kelasu structural belt of the Tarim Basin are also featured by high temperature, well-developed fault fissures, huge thickness, tight matrix, complex oil–water ...
Tongwen Jiang   +2 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Low-Rank Tensor Completion and Total Variation Minimization for Color Image Inpainting

open access: yesIEEE Access, 2020
Low-rank (LR) and total variation (TV) are two most frequent priors that occur in image processing problems, and they have sparked a tremendous amount of researches, particularly for moving from scalar to vector, matrix or even high-order based functions.
Mengjie Qin   +4 more
doaj   +1 more source

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