Results 61 to 70 of about 1,091,019 (290)

A deep cut ellipsoid algorithm for convex programming [PDF]

This paper proposes a deep cut version of the ellipsoid algorithm for solving a general class of continuous convex programming problems. In each step the algorithm does not require more computational effort to construct these deep cuts than its ...
Zhang, S., Frenk, J.B.G., Gromicho, J.A.S.   +2 more
core  

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Matrix convex functions with applications to weighted centers for semidefinite programming [PDF]

In this paper, we develop various calculus rules for general smooth matrix-valued functions and for the class of matrix convex (or concave) functions first introduced by Loewner and Kraus in 1930s.
Zhang, S., Luo, Z-Q., Brinkhuis, J.
core  

3D‐Printed Actuator Powered by Liquid Crystal Elastomer Muscles at the Water–Air Interface

Advanced Materials Technologies, EarlyView.
Soft robots for unstructured environments require responsive, durable actuators. Liquid crystal elastomers (LCEs) provide large reversible deformations under thermal or optical stimuli. Direct ink writing enables fabrication of LCE actuators integrated with silicone, with mesogen chemistry and oligomers optimized for printable inks.
Cecilie Ryberg, Stefan Pendlmayr, Jan Skov Pedersen, Jens Vinge Nygaard, Jan P. F. Lagerwall, Brigitte Städler   +5 more
wiley   +1 more source

Pointlike Material Accumulation and Displacement in Azopolymer Thin Films Driven by Spatial Light Modulation

Advanced Optical Materials, EarlyView.
A maskless, SLM‐driven approach enables the deterministic inscription of arbitrary topographical features in azopolymer films by mapping complex vectorial light fields onto local viscoplastic stress. This platform allows for the rapid generation and dynamic erasure of high‐aspect‐ratio micro‐spikes, offering a versatile tool for reconfigurable flat ...
Jonas Strobelt, Nikolai Liubimtsev, Marina Saphiannikova, Svetlana Santer   +3 more
wiley   +1 more source

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

Advanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu, Chunlong Wang, Xiaohang Sun, Hongwei Guo, Jiayao Ma, Yan Chen   +5 more
wiley   +1 more source

Efficient and Robust Standing Postures of Quadruped Robots

Advanced Robotics Research, EarlyView.
A calibrated static framework estimates load, optimizes torques, and adapts posture so quadruped robots stand efficiently and robustly under external payloads, achieving up to 50% lower torque demand. Inspired by the natural posture adjustments of animals under external loading, this article presents an optimization‐based framework for minimizing joint
Mohamad Kanaan, Hamza Jomaa, Jack Challita, Kawthar Zaidan, Riad Saab, Hussein Hussein   +5 more
wiley   +1 more source

Optimality conditions for multiobjective symmetric convex programming

Journal of Numerical Analysis and Approximation Theory, 1996
Not available.
Ştefan Ţigan
doaj   +2 more sources

Midcourse Guidance via Variable-Discrete-Scale Sequential Convex Programming

Aerospace
To address the challenges of strong nonlinearity, stringent terminal constraints, and the trade-off between computational efficiency and accuracy in the midcourse guidance trajectory optimization problem of aerodynamically controlled interceptors, this ...
Jinlin Zhang, Jiong Li, Lei Shao, Jikun Ye, Yangchao He   +4 more
doaj   +1 more source

Generalized Convexity in Multiobjective Programming

Journal of Mathematical Analysis and Applications, 1999
Consider a multicriteria or vector optimization problem of the form: ``Minimize \(f(x)= (f_1(x),\dots\), \(f_n(x))\) subject to \(x\in S\) and \(g(x)\leq 0\).'' The authors discuss the role played by the concepts of KT-invexity and KT-pseudoinvexity in connection with the establishment of Kuhn-Tucker optimality conditions for weakly efficient points.
Osuna Gómez, Rafaela, Beato Moreno, Antonio, Rufián Lizana, Antonio   +2 more
openaire   +4 more sources