Results 61 to 70 of about 8,709 (260)

Strong Convex Nonlinear Relaxations of the Pooling Problem [PDF]

SIAM Journal on Optimization, 2020
We investigate new convex relaxations for the pooling problem, a classic nonconvex production planning problem in which input materials are mixed in intermediate pools, with the outputs of these pools further mixed to make output products meeting given attribute percentage requirements. Our relaxations are derived by considering a set which arises from
James R. Luedtke, Claudia D'Ambrosio, Jeff T. Linderoth, Jonas Schweiger   +3 more
openaire   +2 more sources

Versatile Pneumatic Twisted Coiled Actuators Enabled by Fiber‐Polymer Composite Fabrication

Advanced Functional Materials, EarlyView.
This work reports composite Pneumatic Twisted Coiled Actuators with embedded Kevlar fibers that convert pneumatic or hydraulic pressure into powerful linear motion. A novel precise manufacturing technique is used to systematically explore how design variables influence actuator mechanics and dynamics.
William J. Townsend, Jeongmin Kim, Samuel Tsai, Yichao Shi, Sameh Tawfick, James H. Pikul   +5 more
wiley   +1 more source

Giant Electrostriction in Halide Perovskites Revisited With Double‐Modulation Interferometry

Advanced Functional Materials, EarlyView.
A giant electrostrictive effect in lead halide perovskites had been reported previously. This work uses sensitive interferometry to measure the electromechanical response of various halide perovskite samples. The results reveal no intrinsic electrostrictive compression. Instead, the materials expand primarily under an applied electric field as a result
Philipp Ramming, Markus Griesbach, Ralf Moos, Lothar Kador, Anna Köhler   +4 more
wiley   +1 more source

Convex Relaxations for Pose Graph Optimization With Outliers [PDF]

IEEE Robotics and Automation Letters, 2018
10 pages, 5 figures, accepted for publication in the IEEE Robotics and Automation Letters ...
Luca Carlone, Giuseppe Carlo Calafiore
openaire   +3 more sources

Tight Convex Relaxations for the Expansion Planning Problem

Journal of Optimization Theory and Applications, 2022
AbstractSecure energy transport is considered as highly relevant for the basic infrastructure of nowadays society and economy. To satisfy increasing demands and to handle more diverse transport situations, operators of energy networks regularly expand the capacity of their network by building new network elements, known as theexpansion planning problem.
Ralf Lenz, Felipe Serrano 0001
openaire   +1 more source

Cellular Responses to Mechanical Cues Across Scales: From Fundamental Insights to Translational Potential

Advanced Healthcare Materials, EarlyView.
This review examines how cellular behavior is regulated by mechanical cues transmitted through soft biomaterials, from single‐cell mechanosensing to tissue‐level adaptation. It highlights why physiological relevance, rather than model complexity alone, is critical for translational mechanobiology and introduces a scoring framework linking material ...
Mathias Polz, Manuel P. Kainz, Niklas Haider, Theresa Rienmüller, Kerstin Lenk, Rupert Kargl, Michele Terzano, Gerhard Sommer, Gerhard A. Holzapfel, Julia Fuchs   +9 more
wiley   +1 more source

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

Robust Distributed Cooperative Localization With NLOS Mitigation Based on Multiplicative Convex Model

IEEE Access, 2019
The accuracy of cooperative localization degrades significantly in the non-line-of-sight (NLOS) environments. In addition, the computational complexity of the localization problem often increases dramatically as the scale of a wireless sensor network ...
Shiwa Chen, Jianyun Zhang, Chengcheng Xu
doaj   +1 more source

Reactive Power Optimization Model for Distribution Networks Based on the Second-Order Cone and Interval Optimization

Energies, 2022
Traditional reactive power optimization mainly considers the constraints of active management elements and ignores the randomness and volatility of distributed energy sources, which cannot meet the actual demand.
Minsheng Yang, Jianqi Li, Rui Du, Jianying Li, Jian Sun, Xiaofang Yuan, Jiazhu Xu, Shifu Huang   +7 more
doaj   +1 more source

Convex Relaxations of Bregman Divergence Clustering

CoRR, 2013
Appears in Proceedings of the Twenty-Ninth Conference on Uncertainty in Artificial Intelligence (UAI2013)
Hao Cheng 0002, Xinhua Zhang, Dale Schuurmans   +2 more
openaire   +3 more sources