Results 111 to 120 of about 3,264 (278)

Vector Field‐Based Collision‐Free Navigation in Tunnel‐Like Environments

Journal of Field Robotics, EarlyView.
ABSTRACT Tunnel‐like environments, renowned for their vast scale, confined spaces, and limited visibility, present significant challenges for autonomous robot navigation. This study addresses the critical issue of guiding robots through such environments while ensuring collision‐free navigation and maintaining a specified safety margin from both tunnel
Bao Jianjun, Licheng Feng, Yueqi Wang, Kai Zhao, Binghao Li, Liao Wu   +5 more
wiley   +1 more source

Location‐Assisted Graph‐Based User Scheduling in Multi‐User MIMO LEO NTN Systems

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper addresses user clustering and scheduling for multi‐user MIMO low Earth orbit nonterrestrial network systems in full frequency reuse. Since the number of on‐ground user terminals is usually much higher than the number of on‐board LEO satellite antennas, user scheduling becomes a fundamental task.
Bilal Ahmad, Daniel Gaetano Riviello, Bruno De Filippo, Alessandro Guidotti, Alessandro Vanelli‐Coralli   +4 more
wiley   +1 more source

3D Customized Silica‐Based AFM Probes Fabricated by Selective Laser Etching

Small Methods, EarlyView.
Selective laser etching (SLE) enables the monolithic fabrication of customized, fully 3D silica AFM probes integrating both cantilever and tip with controlled 3D geometries. The process allows the production of either sharp or spherical tips with high design flexibility, reproducibility, and yield.
Koutayba Saada, David Bourrier, Juliette Lignieres, Etienne Dague, Laurent Malaquin   +4 more
wiley   +1 more source

Cement Lines are Stiffer and Harder than Bone but Exhibit Different Mineral–Mechanics Relationships due to Thicker and Shorter Mineral Particles

Small Structures, EarlyView.
Bone's complex hierarchical structure contains many internal interfaces, including the cement line (CL) around osteons. This article shows that the CL is stiffer and harder than surrounding bone but has different mineral–mechanics relationships. These findings challenge the view of the CL as a soft, protective interface and provide insights for ...
Astrid Cantamessa, Victoria Schemenz, Stéphane Blouin, Timothy Volders, Shahrouz Amini, Maximilian Rummler, Jiliang Liu, Andrea Berzlanovich, Richard Weinkamer, Wolfgang Wagermaier, Markus A. Hartmann, Davide Ruffoni   +11 more
wiley   +1 more source

Distributed Formation Control for Heterogeneous Robot Systems Based on Competitive Mechanism

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT This paper presents an adaptive formation control method for a heterogeneous robot swarm, utilising a multilevel formation task tree to model various types of formation tasks and a single‐state distributed k‐winner‐take‐all (S‐DKWTA) algorithm to address the MRTA problem.
Zhenghui Cui, Xiaoyi Gu, Ning Tan
wiley   +1 more source

Multi‐Objective Optimisation Framework for Heterogeneous Federated Learning

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Federated learning is a distributed framework that trains a centralised model using data from multiple clients without transferring that data to a central server. Despite rapid progress, federated learning still faces several unsolved challenges. Specifically, communication costs and system heterogeneity, such as nonidentical data distribution,
Jamshid Tursunboev, Vikas Palakonda, Il‐Min Kim, Sunghwan Moon, Jae‐Mo Kang   +4 more
wiley   +1 more source

Spectral theory for bounded banded matrices with positive bidiagonal factorization and mixed multiple orthogonal polynomials [PDF]

, 2022
Amílcar Branquinho, Ana Foulquié‐Moreno, Manuel Mañas   +2 more
openalex   +1 more source

Multiple orthogonal polynomial ensembles

, 2012
Multiple orthogonal polynomial (MOP) ensembles form a generalization of the orthogonalpolynomial (OP) ensembles appearing in random matrix theory. Of maininterest is the asymptotic behavior of MOP ensembles, i.e., the behavior as the numberof particles tends to infinity.We consider the subclass of Angelesco ensembles.
openaire   +1 more source

A Rapid Prediction Method of Three‐Dimensional Total Electric Field Under UHVDC Transmission Lines With Buildings Nearby

High Voltage, EarlyView.
ABSTRACT The proliferation of ultra‐high voltage direct current (UHVDC) transmission technology has heightened regulatory oversight of electromagnetic fields around buildings. In conventional direct current (DC) line design, the presence of residential areas was typically not taken into account.
Tahan Wang, Li Xie, Kun He, Jiayu Lu
wiley   +1 more source

Integral and Hypergeometric Representations for Multiple Orthogonal Polynomials

International Mathematics Research Notices
Abstract This paper addresses two primary objectives in the realm of classical multiple orthogonal polynomials with an arbitrary number of weights. Firstly, it establishes new and explicit hypergeometric expressions for type I Hahn multiple orthogonal polynomials. Secondly, applying the residue theorem and the Mellin transform, the paper
Branquinho, Amílcar, Díaz, Juan E. F., Foulquié-Moreno, Ana, Mañas, Manuel, Wolfs, Thomas   +4 more
openaire   +2 more sources