Results 61 to 70 of about 36,142 (194)

Finite‐Time Disturbance Observer‐Based Nonlinear Robust Adaptive Control of Hydraulic Manipulator With Parameter Identification

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Hydraulic manipulators exhibit strong coupling, pronounced nonlinearities, and significant modeling uncertainties, which hinder high‐precision motion control. This paper proposes a finite‐time disturbance observer–based nonlinear robust adaptive control (RAC‐FTDO) framework enhanced by a physically consistent dynamic parameter identification ...
Tianyu Gao   +3 more
wiley   +1 more source

An upper bound for the Z-spectral radius of adjacency tensors

open access: yesJournal of Inequalities and Applications, 2018
Let H $\mathcal{H}$ be a k-uniform hypergraph on n vertices with degree sequence Δ=d1≥⋯≥dn=δ $\Delta=d_{1} \geq\cdots\geq d_{n}=\delta$. In this paper, in terms of degree di $d_{i}$, we give a new upper bound for the Z-spectral radius of the adjacency ...
Zhi-Yong Wu   +3 more
doaj   +1 more source

Unraveling the spatial landscape of dystrophinopathies: a transcriptomic approach to Becker and Duchenne muscular dystrophies

open access: yesThe Journal of Pathology, EarlyView.
Abstract Dystrophinopathies are caused by pathogenic variants in the DMD gene, resulting in partial (Becker) or complete loss (Duchenne) of dystrophin. Becker (BMD) and Duchenne muscular dystrophy (DMD) are characterized by progressive muscle wasting, fatty replacement, fibrosis, and loss of function.
Laura GM Heezen   +14 more
wiley   +1 more source

User social influence analysis based on constrained nonnegative tensor factorization

open access: yesTongxin xuebao, 2016
Existing models for measuring user social influence fail to integrate both opinion and topic information.Therefore,a new constrained nonnegative tensor factorization method combining user’s opinion and the topical relevance was proposed.The method ...
Jing-jing WEI   +4 more
doaj   +2 more sources

An S-type upper bound for the largest singular value of nonnegative rectangular tensors

open access: yesOpen Mathematics, 2016
An S-type upper bound for the largest singular value of a nonnegative rectangular tensor is given by breaking N = {1, 2, … n} into disjoint subsets S and its complement. It is shown that the new upper bound is smaller than that provided by Yang and Yang (
Zhao Jianxing, Sang Caili
doaj   +1 more source

A new smooth failure criterion for concrete inspired by Lubliner's condition

open access: yesStructural Concrete, EarlyView.
Abstract A new failure criterion with 10 parameters is proposed, based on Lubliner's idea of joining two Drucker–Prager cones. The novelty lies in the way of introducing deviatoric shape variation: through two Podgórski's functions. This feature allows for improving plane stress cross‐section's compatibility with experimental data.
Inez Kamińska, Aleksander Szwed
wiley   +1 more source

Why Is Exclusivity in Broadcasting Rights Prevalent and Why Does Simple Regulation Fail?

open access: yesThe RAND Journal of Economics, EarlyView.
ABSTRACT Pay‐TV firms compete both downstream to attract viewers and upstream to acquire broadcasting rights. Because profits inherited from downstream competition satisfy a convexity property, allocating rights to the dominant firm maximizes the industry profit.
David Martimort, Jerome Pouyet
wiley   +1 more source

The Dominant Eigenvalue of an Essentially Nonnegative Tensor [PDF]

open access: yes, 2011
It is well known that the dominant eigenvalue of a real essentially nonnegative matrix is a convex function of its diagonal entries. This convexity is of practical importance in population biology, graph theory, demography, analytic hierarchy process and
Luo, Ziyan, Qi, Liqun, Zhang, Liping
core  

Maximal and typical nonnegative ranks of nonnegative tensors

open access: yes, 2018
Let $N_1, \ldots, N_d$ be positive integers with $N_1\leq\cdots\leq N_d$. Set $N=N_1\cdots N_{d-1}$. We show in this paper that an integer $r$ is a typical nonnegative rank of nonnegative tensors of format $N_1\times\cdots\times N_d$ if and only if $r\leq N$ and $r$ is greater than or equals to the generic rank of tensors over $\mathbb{C}$ of format ...
Sumi, Toshio   +2 more
openaire   +2 more sources

Liquidity Crises and the Market‐Maker of Last Resort

open access: yesJournal of Money, Credit and Banking, EarlyView.
Abstract We study market illiquidity in an economy subject to nonfundamental shocks. Asset trading occurs via decentralized bargaining. The model has multiple rational expectations equilibria; we associate certain Pareto‐inferior equilibria with liquidity crises.
CHARLES M. KAHN   +2 more
wiley   +1 more source

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