Results 31 to 40 of about 16,329,521 (81)

Accelerating the transition to cobalt-free batteries: a hybrid model for LiFePO4/graphite chemistry

open access: yesnpj Computational Materials
The increased adoption of lithium-iron-phosphate batteries, in response to the need to reduce the battery manufacturing process’s dependence on scarce minerals and create a resilient and ethical supply chain, comes with many challenges.
Gabriele Pozzato   +4 more
doaj   +1 more source

Packing Unequal Circles into a Minimum-Radius Circle Using r-Algorithm

open access: yesКібернетика та комп'ютерні технології
Two approaches to employ the Shor’s r-algorithm for solving a problem of packing unequal circles into a minimum-radius circle are studied. The first approach uses multistart of the r-algorithm with a step dichotomy from a set of feasible starting points.
Bohdan Zadorozhnyi   +4 more
doaj   +1 more source

Robust non-negative least mean square algorithm based on step-size scaler against impulsive noise

open access: yesAdvances in Difference Equations, 2020
Conventional non-negative algorithms restrict the weight coefficient vector under non-negativity constraints to satisfy several inherent characteristics of a specific system.
Kuangang Fan   +3 more
doaj   +1 more source

Panel defect detection algorithm based on improved Faster R-CNN

open access: yesDianzi Jishu Yingyong, 2022
In view of the low precision and low efficiency of panel surface defect detection, this paper proposes an optimized defect detection algorithm based on Faster R-CNN.
Chen Wanqin, Tang Qingshan, Huang Tao
doaj   +1 more source

Least Squares Method and Least Modules Method for Finding Defects in Regular Images

open access: yesКібернетика та комп'ютерні технології
The article describes methods based on method of least squares (LSM) and the method of least modules (LMM) to search for defects in regular images (regular 3D structures images).
Volodymyr Zhydkov   +2 more
doaj   +1 more source

Computational Experiments for the r(α)-Algorithm with an Accelerated Implementation of Space Dilation

open access: yesКібернетика та комп'ютерні технології, 2023
In the article, a modification of the r(α)-algorithm with adaptive line search which implements accelerated space dilation operation is considered. In classical r(α)-algorithm with adaptive line search, space is dilated along the difference of the two ...
Anton Suprun
doaj   +1 more source

Selection of target function in optical coatings synthesis problems

open access: yesSistemnì Doslìdženâ ta Informacìjnì Tehnologìï
The article presents general information on the use of optical coatings in various industries and analyzes the main approaches to optimizing optical filter structures.
Oleksandr Mitsa   +5 more
doaj   +1 more source

An Efficient Closed-Form Formula for Evaluating r-Flip Moves in Quadratic Unconstrained Binary Optimization

open access: yesAlgorithms, 2023
Quadratic unconstrained binary optimization (QUBO) is a classic NP-hard problem with an enormous number of applications. Local search strategy (LSS) is one of the most fundamental algorithmic concepts and has been successfully applied to a wide range of ...
Bahram Alidaee, Haibo Wang, Lutfu S. Sua
doaj   +1 more source

A Novel R-Peak Detection Algorithm

open access: yesIEEE Access
Accurate detection of R-peaks in electrocardiogram (ECG) signals is essential for cardiac analysis and diagnosis. While existing algorithms often rely on complex transformations or machine learning, we revisit the classical philosophy of using simple and
Fushing Hsieh, Ting-Li Chen
doaj   +1 more source

A Simple Algorithm for $r$-gatherings on the Line

open access: yesJournal of Graph Algorithms and Applications, 2019
In this paper we study a recently proposed variant of the facility location problem called the $r$-gathering problem. Given sets $C$ and $F$ of points on the plane and distance $d(c,f)$ for each $c\in C$ and $f\in F$, an $r$-gathering of $C$ to $F$ is ...
Shin-ichi Nakano
doaj   +1 more source

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