Results 101 to 110 of about 1,263,529 (296)

On the Optimality of Treating Inter-Cell Interference as Noise: Downlink\n Cellular Networks and Uplink-Downlink Duality [PDF]

, 2019
Hamdi Joudeh, Xinping Yi, Bruno Clerckx, Giuseppe Caire   +3 more
openalex   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Exploring the collision, acoustic and thermal energy dissipation distribution of discrete mass

Scientific Reports
This research delves into the transfer and loss of energy in a discrete mass when subjected to forced vibration. Using discrete element method (DEM), we analyzed the dynamic behavior of regular spherical granular assemblies and the energy distribution ...
Zhang Shengwu, Wang Chiming, Zhang Yuanchao, Xu Wei, Li Yanan, Cheng Jianwei, Zhu Shunzhi   +6 more
doaj   +1 more source

Research on Ellipse-Based Transient Impact Source Localization Methodology for Ship Cabin Structure

Journal of Marine Science and Engineering
This study explores the application of three localization methods in identifying transient impact sources in the ship cabin structure. These methods examined are based on energy curvature and cumulative error, time-reversed virtual focusing triangulation,
Xiufeng Huang, Rongwu Xu, Wenjing Yu, Xuan Ming, Shiji Wu   +4 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

Advanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Impact Load Localization Based on Multi-Scale Feature Fusion Convolutional Neural Network

Sensors
In order to achieve impact load localization of complex structures such as ships, this paper proposes a multi-scale feature fusion convolutional neural network (MSFF-CNN) method for impact load localization.
Shiji Wu, Xiufeng Huang, Rongwu Xu, Wenjing Yu, Guo Cheng   +4 more
doaj   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

Mechanical characteristics analysis of high dimensional vibration isolation systems based on high-static-low-dynamic stiffness technology

Scientific Reports
Large floating raft vibration isolation systems (FRVISs) based on high-static-low-dynamic stiffness (HSLDS) technology offer excellent low frequency vibration isolation performance with broad application prospects.
Bu-yun Li, Chang-geng Shuai, Jian-guo Ma
doaj   +1 more source

Suppressed frictional noise on micro-triangle textured NBR inspired by ventral snake scales

Polymer Testing
Nitrile butadiene rubber (NBR) is a basic ingredient of water-lubricated bearing which frequently suffers from abnormal frictional noise under certain shipping conditions.
Weibin Wu, Zeyun Li, Xue Yang, Qinqin Wang   +3 more
doaj   +1 more source