Results 41 to 50 of about 1,977,959 (288)
A Sufficient Descent 3-Term Conjugate Gradient Method for Unconstrained Optimization Algorithm
Tikrit Journal of Pure Science, 2023 In recent years, 3-term conjugate gradient algorithms (TT-CG) have sparked interest for large scale unconstrained optimization algorithms due to appealing practical factors, such as simple computation, low memory requirement, better sufficient descent ...
Ghada Moayid Al-Naemi, Samaa AbdulQader
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An Efficient Algorithm for Unconstrained Optimization [PDF]
Mathematical Problems in Engineering, 2015 This paper presents an original and efficient PSO algorithm, which is divided into three phases: (1) stabilization, (2) breadth-first search, and (3) depth-first search. The proposed algorithm, called PSO-3P, was tested with 47 benchmark continuous unconstrained optimization problems, on a total of 82 instances.
de-los-Cobos-Silva, Sergio Gerardo +5 more
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Advanced Functional Materials, EarlyView.The APTES linker establishes a permanent interfacial dipole, reducing the work function of n‐GaN from 3.55 to 3.29 eV. This strengthens the built‐in electric field, significantly accelerating hole extraction to drive the oxygen evolution reaction (OER). Ultimately, this tailored charge‐separation architecture achieves a remarkable 4.78‐fold enhancement
Jeong‐Kyun Oh +15 more
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Advanced Functional Materials, EarlyView.A particle‐level dual‐polymer interphase of carboxymethyl cellulose (CMC) and poly(acrylic acid) (PAA) stabilizes zinc metal powder anodes by coupling CMC‐mediated water regulation with PAA‐derived Zn2+ affinity. This synergy suppresses hydrogen evolution, corrosion, and byproduct accumulation while preserving electrode‐level electrical contact ...
Yunah Ahn +7 more
wiley +1 more source
Practical Implementation of Unconstrained Optimization Methods Tested on Quadratic Functions [PDF]
, 2017 In this work we give a detailed look to the Practical implementation of unconstrained optimization tested on quadratic functions. Section (1) speak about the theory of optimization problems, introduce definitions and theorems of linear programming ...
El Siddieg, Awatif M. A.
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Data-Driven Method for Missing Harmonic Data Completion
IEEE Access, 2021 In large-scale applications, missing harmonic data during transmission is inevitable. This paper presents a novel approach for the completion of missing harmonic data based on a data-driven approach.
Rui Xu +4 more
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Advanced Healthcare Materials, EarlyView.This study shows crosstalk among tumor cells, fibroblasts, and macrophages alters the physical forces inside 3D tumor spheroids. Incorporating deformable microparticles in 3D tumor spheroids, the researchers mapped mechanical stresses spatially and with respect to tumor growth (temporally).
Kunal P. Pednekar +2 more
wiley +1 more source
Strength analysis and structural optimization of UAV airframe
Frontiers in Mechanical EngineeringIntroductionWith the booming low-altitude economy, UAVs drive transformative changes across sectors, but their design must balance lightweight demands and structural integrity.
Longhai Ye +5 more
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An Improved Adaptive Trust-Region Method for Unconstrained Optimization
Mathematical Modelling and Analysis, 2014 In this study, we propose a trust-region-based procedure to solve unconstrained optimization problems that take advantage of the nonmonotone technique to introduce an efficient adaptive radius strategy.
Hamid Esmaeili, Morteza Kimiaei
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An Improved Unconstrained Approach for Bilevel Optimization
SIAM Journal on Optimization, 2023 Abstract. In this paper, we focus on the nonconvex-strongly-convex bilevel optimization problem (BLO). In this BLO, the objective function of the upper-level problem is nonconvex and possibly nonsmooth, and the lower-level problem is smooth and strongly convex with respect to the underlying variable [Formula: see text].
Xiaoyin Hu +3 more
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