Results 81 to 90 of about 2,606,960 (274)
Basis‐Independent Geometric Phase Modulation in Circularly Birefringent Plasmonic Structures
Advanced Optical Materials, EarlyView.Here we introduce a plasmonic metasurface composed of spatially rotated chiral spiral unit cells designed to produce space‐variant circular retardance. This generates a geometric phase ramp equivalent to a blazed grating, leading to polarization dependent diffraction orders in momentum space.
Pasha Goz +3 more
wiley +1 more source
Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots
Advanced Robotics Research, EarlyView.A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun +3 more
wiley +1 more source
Advanced Robotics Research, EarlyView.A balanced multimodal food‐waste dataset and a novel Split Spatial‐Spectral Attention fusion framework are presented for robotic contaminant detection. Separate processing of RGB, thermal, and multispectral inputs preserves subtle material signatures before feature integration, reducing modality interference and improving classification and ...
Matthew Vestal +5 more
wiley +1 more source
METHODS AND MODELS TO RESEARCH THE VIRTUAL MANUFACTURES ORIENTED ON THE ISSUE OF HIGH-TECH PRODUCTS
Авіаційно-космічна техніка та технологія, 2017 The problem to create the virtual manufacturing system (VMS) for the manufacture of high-tech products (aeronautics, automotive, instrumentation, etc.) is stated and solved.
Олег Евгеньевич Федорович +2 more
doaj +1 more source
Model Predictive Control for Magnetically Actuated Cellbots
Advanced Robotics Research, EarlyView.Magnetically actuated cellbots, formed by embedding microrobots in living cells, are steered along precise paths using a model predictive controller enhanced with a Gaussian process disturbance estimator. The data‐efficient method calibrates each cellbot individually, cutting modeling error by roughly 60% and enabling accurate navigation through cell ...
Mehdi Kermanshah +8 more
wiley +1 more source
Nauka ta progres transportu, 2008 An algorithm for determination of integer solution of the task of vector optimization for convex functions is offered.
O. O. Bosov, H. M. Kodola
doaj
Consensus Formation and Change are Enhanced by Neutrality
Advanced Science, EarlyView.Neutral agents are shown to enhance both the formation and overturning of consensus in collective decision‐making. A general mathematical model and experiments with locusts and humans reveal that neutrality enables robust consensus via simple interactions and accelerates consensus change by reducing effective population size.
Andrei Sontag +3 more
wiley +1 more source
Helix Alignment, Chevrons, and Edge Dislocations in Twist‐Bend Ferroelectric Nematics
Advanced Science, EarlyView.The recently discovered twist‐bend ferroelectric nematic (NTBF) is the new member of the multiferroic family, representing a fluid with an oblique helicoidal (heliconical) periodic structure of spontaneous electric polarization. The work presents a thorough exploration of the material properties of this phase, how the periodic modulation of ...
Bijaya Basnet +8 more
wiley +1 more source
FRACTIONAL WINDINGS HARMONIC ANALYSIS
Electrical engineering & Electromechanics, 2013 Investigation results for multiphase windings of a united variety that includes windings with fractional and integer number of slots per pole and phase are given.
W.G. Degtev
doaj
Journal of Advanced TransportationRegional rapid rail transit is an emerging rail transit system in China in recent years, with the same level of service frequency and longer station spacing as metro.
Guoxuan Tai +5 more
doaj +1 more source