Results 71 to 80 of about 24,658 (179)

A Reentry Trajectory Planning Algorithm via Pseudo-Spectral Convexification and Method of Multipliers

open access: yesMathematics
The reentry trajectory planning problem of hypersonic vehicles is generally a continuous and nonconvex optimization problem, and it constitutes a critical challenge within the field of aerospace engineering.
Haizhao Liang   +4 more
doaj   +1 more source

TDOA-Based Source Collaborative Localization via Semidefinite Relaxation in Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2015
The time delay of arrival- (TDOA-) based source localization using a wireless sensor network has been considered in this paper. The maximum likelihood estimate (MLE) is formulated by taking the correlated TDOA noise into account, which is caused by the ...
Yongsheng Yan   +4 more
doaj   +1 more source

Hybrid Energy Management for Electric Vehicles: Enhancing Battery Lifespan and Efficiency With Marine Predator Algorithm and Dynamic Floating Mechanism

open access: yesEngineering Reports, Volume 8, Issue 3, March 2026.
An intelligent energy management system (IEMS) optimized by the MPA‐DFM approach dynamically regulates battery power using supercapacitor energy in hybrid electric vehicles. The proposed control strategy minimizes battery stress and power loss, extends lifetime, and ensures real‐time stability across transient and steady‐state driving conditions ...
Yassine Bouteraa, Mohammad Khishe
wiley   +1 more source

Optimal Network Topology for Node-Breaker Representations With AC Power Flow Constraints

open access: yesIEEE Access, 2020
It has been demonstrated that network topology optimization (NTO) may change the topology of power system networks, and consequently, provide additional flexibility to reduce network congestion and violations.
Byungkwon Park, Christopher L. Demarco
doaj   +1 more source

Optimality results for nondifferentiable multiobjective fractional programming problems under E-B-invexity

open access: yesResults in Control and Optimization
In this article, we study nonconvex multiobjective fractional programming problems involving E-differentiable functions (MFPE). We establish the E-Karush–Kuhn–Tucker (E-KKT) sufficient E-optimality conditions for nonsmooth vector optimization problems ...
Dhruv Singh   +3 more
doaj   +1 more source

CHARACTERISING SOLUTION SET OF A NONCONVEX PROGRAMMING PROBLEM VIA ITS DUAL PROBLEMS

open access: yesTạp chí Khoa học Đại học Đà Lạt, 2012
Using duality theory, we propose a new approach to characterise solution set of a nonconvex optimisation problem. Several characterisations of solution set of the problem are established via it s dual problems.
Do Sang Kim, Tạ Quang Sơn
doaj   +1 more source

Convex inner approximations of nonconvex semialgebraic sets applied to fixed-order controller design

open access: yes, 2012
We describe an elementary algorithm to build convex inner approximations of nonconvex sets. Both input and output sets are basic semialgebraic sets given as lists of defining multivariate polynomials.
Henrion, Didier, Louembet, Christophe
core   +1 more source

Energy Efficiency Optimization for Mobile Ad Hoc Networks

open access: yesIEEE Access, 2016
Tremendous traffic demands for ubiquitous access and emerging multimedia applications significantly increase the energy consumption of battery-powered mobile devices.
Wen-Kuang Kuo, Shu-Hsien Chu
doaj   +1 more source

Power Allocation Optimization Strategy Based on Full-duplex Relay Network [PDF]

open access: yesJisuanji gongcheng, 2018
This paper investigates the security performance in the full-duplex relay network.Targeting on the improvement of the security performance,the power allocation is optimized with the consideration of the maximum transmit power and minimum security rate ...
CHU Wanshun,ZHANG Qigui
doaj  

A local branching heuristic for MINLPs

open access: yes, 2008
Local branching is an improvement heuristic, developed within the context of branch-and-bound algorithms for MILPs, which has proved to be very effective in practice.
Belotti, Pietro   +2 more
core   +1 more source

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