Results 81 to 90 of about 14,465,781 (332)
A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller
International Journal of Adaptive Control and Signal Processing, EarlyView.Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg +5 more
wiley +1 more source
The ancient art of laying rope [PDF]
, 2010 We describe a geometrical property of helical structures and show how it accounts for the early art of ropemaking. Helices have a maximum number of rotations that can be added to them -- and it is shown that this is a geometrical feature, not a material ...
Bohr, Jakob, Olsen, Kasper
core +3 more sources
Analysis of the Twist Structure in Self-twist Yarn
Fibres and Textiles in Eastern Europe, 2017 This paper mainly discussed the twist structure and property difference between in-phase self-twist yarn and phased self-twist yarn. There are three kinds of zones along the yarn: the twist-twist zone, twist-notwist zone and notwist-notwist zone in one cycle length of self-twist yarn.
Hong Cui +3 more
openaire +1 more source
Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control
Advanced Engineering Materials, EarlyView.This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian +4 more
wiley +1 more source
Determining the interlayer shearing in twisted bilayer MoS2 by nanoindentation
Nature Communications, 2022 The study of the mechanical properties of twisted van der Waals structures can provide important information about their interlayer coupling and electronic behaviour.
Yufei Sun +10 more
doaj +1 more source
Covariant Realization of Quantum Spaces as Star Products by Drinfeld Twists
, 2002 Covariance of a quantum space with respect to a quantum enveloping algebra ties the deformation of the multiplication of the space algebra to the deformation of the coproduct of the enveloping algebra.
Bayen +22 more
core +1 more source
Twist Angle mapping in layered WS2 by Polarization-Resolved Second Harmonic Generation
Scientific Reports, 2019 Stacked atomically thin transition metal dichalcogenides (TMDs) exhibit fundamentally new physical properties compared to those of the individual layers. The twist angle between the layers plays a crucial role in tuning these properties.
S. Psilodimitrakopoulos +6 more
semanticscholar +1 more source
Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
Synthesis and formation process of Al2CuHx: A new class of interstitial aluminum-based alloy hydride
APL Materials, 2013 Aluminum-based alloy hydride Al2CuHx (x ∼ 1) is synthesized by hydrogenating Al2Cu alloy using high-temperature and high-pressure hydrogen atmosphere.
Hiroyuki Saitoh +6 more
doaj +1 more source