Results 91 to 100 of about 1,277,810 (294)
A Topology Optimization Framework for the Inverse Design of Nonlinear Mechanical Metamaterials
Advanced Engineering Materials, EarlyView.This work uses topology optimization to design unit cells for mechanical metamaterials with a prescribed nonlinear stress–strain response. The framework adds contact and postbuckling modeling to synthesize microstructures for three highly nonlinear responses, including pseudoductile behavior, monostable with snap‐through buckling, and bistable ...
Charlie Aveline +2 more
wiley +1 more source
Arbitrary Finite-time Tracking Control for Magnetic Levitation Systems
International Journal of Advanced Robotic Systems, 2014 In this paper, an arbitrary finite-time tracking control (AFTC) method is developed for magnetic levitation systems with uncertain dynamics and external disturbances.
Xuan-Toa Tran, Hee-Jun Kang
doaj +1 more source
IEEE Access, 2019 Considering the sailing characteristics and difficult maneuverability of hovercraft, the three degree-of-freedom (DOF) mathematical model cannot describe effectively the motion of hovercraft.
Mingyu Fu, Tan Zhang, Fuguang Ding
doaj +1 more source
Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films
Advanced Functional Materials, EarlyView.The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram +2 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer +12 more
wiley +1 more source
A Finite-Time Control Design for the Discrete-Time Chaotic Logistic Equations
ActuatorsFinite-time control theory has been widely used as a mathematical tool to design robust controllers. By manipulating the finite-time convergence proof of this theory, we developed a new control design appropriately tuned for the finite-time control of ...
Leonardo Acho +2 more
doaj +1 more source
Event trigger based adaptive neural trajectory tracking finite time control for underactuated unmanned marine surface vessels with asymmetric input saturation. [PDF]
Sci Rep, 2023 Hu Y, Zhang Q, Liu Y, Meng X.
europepmc +1 more source
Effect of time delay on feedback control of a flashing ratchet
, 2007 It was recently shown that the use of feedback control can improve the performance of a flashing ratchet. We investigate the effect of a time delay in the implementation of feedback control in a closed-loop collective flashing ratchet, using Langevin ...
Craig, E. M. +3 more
core +1 more source
Distributed finite‐time control for spatially interconnected systems
IET Control Theory & Applications, 2019 Compared with the classical Lyapunov asymptotic stability, finite‐time stability is much more important and significant in some practical applications. The purpose of this study is to design the distributed controllers such that the controlled spatially interconnected systems are well‐posed, finite‐time stable/bounded and finite‐time contractive. First,
Hongyan Feng, Huiling Xu, Shengyuan Xu
openaire +1 more source
Photoswitchable Conductive Metal–Organic Frameworks
Advanced Functional Materials, EarlyView.A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu +5 more
wiley +1 more source