Results 41 to 50 of about 8,709 (260)
Synthesis of Transmitarrays via Convex Relaxation
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, 2020 A mathematical approach for the phase-only synthesis of transmitarray antennas based on iterative convex optimization is presented. Using semidefinite relaxation techniques, the proposed framework is suitable for a wide range of beam shaping applications.
Foglia Manzillo, Francesco +4 more
openaire +2 more sources
CSEE Journal of Power and Energy Systems, 2018 Storage is widely considered in economic dispatch (ED) problems. To prevent simultaneous charging and discharging of a storage device, a storage-concerned ED problem should involve complementarity constraints for every storage device to make the problem ...
Zhengshuo Li +3 more
doaj +1 more source
Efficient Sensor Node Selection for Observability Gramian Optimization
Sensors, 2023 Optimization approaches that determine sensitive sensor nodes in a large-scale, linear time-invariant, and discrete-time dynamical system are examined under the assumption of independent and identically distributed measurement noise.
Keigo Yamada +5 more
doaj +1 more source
A Convex Relaxation for Multi-Graph Matching [PDF]
2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2019 We present a convex relaxation for the multi-graph matching problem. Our formulation allows for partial pairwise matchings, guarantees cycle consistency, and our objective incorporates both linear and quadratic costs. Moreover, we also present an extension to higher-order costs.
Paul Swoboda +4 more
openaire +2 more sources
Distributed Optimal Control of DC Network Using Convex Relaxation Techniques
EnergiesThis paper proposes a novel distributed control strategy for DC microgrids using a convex relaxation method to ensure the system operates at the optimal power flow solution.
Yongbo Fu +9 more
doaj +1 more source
Engineering Science and Technology, an International Journal, 2020 This paper proposes a convex approximation approach for solving the optimal power flow (OPF) problem in direct current (DC) networks with constant power loads by using a sequential quadratic programming approach.
Oscar Danilo Montoya
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Convexification of Hybrid AC-DC Optimal Power Flow with Line-Commutated Converters
CSEE Journal of Power and Energy SystemsLine-commutated converter (LCC)-based high-voltage DC (HVDC) systems have been integrated with bulk AC power grids for interregional transmission of renewable power.
Hongyuan Liang +3 more
doaj +1 more source
Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy
Advanced Engineering Materials, EarlyView.This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb +6 more
wiley +1 more source
Journal of the Mechanical Behavior of Materials, 2015 This paper introduces constructing convex-relaxed programs for nonconvex optimization problems. Branch-and-bound algorithms are convex-relaxation-based techniques.
Keller André A.
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Estimations of Covering Functionals of Convex Bodies Based on Relaxation Algorithm
Mathematics, 2023 Estimating covering functionals of convex bodies is an important part of Chuanming Zong’s program to attack Hadwiger’s covering conjecture, which is a long-standing open problem from convex and discrete geometry.
Man Yu +4 more
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