Results 71 to 80 of about 4,101,445 (240)
The diameter of the Birkhoff polytope
Special MatricesThe geometry of the compact convex set of all n×nn\times n doubly stochastic matrices, a structure frequently referred to as the Birkhoff polytope, has been an active subject of research as of late.
Bouthat Ludovick +2 more
doaj +1 more source
Filtering antenna with radiation and filtering functions for wireless applications
Journal of Electrical Systems and Information Technology, 2017 This manuscript presents, a new 5th order Chebyshev band pass filter with 2.45 GHz center frequency and 0.1 dB equal-ripple filtering antenna are proposed.
Jagadish Baburao Jadhav +1 more
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Advanced Intelligent Discovery, EarlyView.We propose a residual‐based adversarial‐gradient moving sample (RAMS) method for scientific machine learning that treats samples as trainable variables and updates them to maximize the physics residual, thereby effectively concentrating samples in inadequately learned regions.
Weihang Ouyang +4 more
wiley +1 more source
A ZigBee network anonymous authentication scheme based on Chebyshev chaotic mapping and CRT
物联网学报, 2023 A ZigBee network anonymous authentication scheme based on Chebyshev chaotic mapping and Chinese remainder theorem (CRT) was proposed to solve the problems such as the incomplete reliability of ZigBee network trust center and the lack of identity ...
Wei LIAO +4 more
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Restricted Chebyshev centers in $L_1$-predual spaces
, 2022 In this paper, we provide a necessary and sufficient condition for the existence of a restricted Chebyshev center of a compact subset of an $L_{1}$-predual space in a closed convex subset of the $L_{1}$-predual space. We also provide a geometrical characterization of an $L_{1}$-predual space in terms of the restricted Chebyshev radius in the following ...
openaire +2 more sources
Optimizing 3D Bin Packing of Heterogeneous Objects Using Continuous Transformations in SE(3)
Advanced Intelligent Systems, EarlyView.This article presents a method for solving the three‐dimensional bin packing problem for heterogeneous objects using continuous rigid‐body transformations in SE(3). A heuristic optimization framework combines signed‐distance functions, neural network approximations, point‐cloud bin modeling, and physics simulation to ensure feasibility and stability ...
Michele Angelini, Marco Carricato
wiley +1 more source
3D inversion of magnetic gradient data based on equivalent source weighting method
AIP Advances3D magnetic inversion is an important method for detecting underwater or underground magnetic objects, which can obtain the physical parameters and geometric features of the target.
Shuanglong Huang +4 more
doaj +1 more source
3-D Printing Quantization Predistortion Applied to Sub-THz Chained-Function Filters
IEEE Access, 2022 This paper investigates physical dimension limits associated with the low-cost, polymer-based masked stereolithography apparatus (MSLA) 3-D printer, with $50 ~\mu \text{m}$ pixels defining the minimum print feature size.
Liyan Zhu +5 more
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Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Efficient thermal management in advanced industrial systems requires improved heat transfer performance, particularly under non‐Newtonian fluid behavior and complex surface geometries. This study investigates the two‐dimensional flow and heat transfer characteristics of ternary hybrid nanofluids over both stationary and moving wedge surfaces ...
A. O. Akindele +4 more
wiley +1 more source
Lipschitz continuity of best approximations and Chebyshev centers
Chinese Science Bulletin, 1998 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Chong, Wang, Xinghua
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