Results 81 to 90 of about 57,353 (294)
An Ultrasonic analog for a laser
, 2005 We report measurements on ultrasonic systems analogous to random lasers. One system entails unstable ultrasonic feedback between distinct transducers, another involves a piezoelectric device that emits spontaneously and by stimulation.
Lobkis, Oleg I +2 more
core +1 more source
Advanced Functional Materials, EarlyView.Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo +2 more
wiley +1 more source
Intrinsically Multistable Soft Actuator Driven by Mixed‐Mode Snap‐Through Instabilities
Advanced ScienceActuators utilizing snap‐through instabilities are widely investigated for high‐performance fast actuators and shape reconfigurable structures owing to their rapid response and limited reliance on continuous energy input.
Yichi Luo +6 more
doaj +1 more source
LSS reference platform control [PDF]
, 1982 The long range objective of this task is to develop basic technology in the design, mechanization, and analysis of control systems for large flexible space structures.
Edmunds, R. S.
core +1 more source
Light‐Actuated Fiber‐Climbing Inchworm Robot Toward Endoluminal Navigation
Advanced Functional Materials, EarlyView.A kirigami‐inspired soft inchworm robot harnesses optical energy from a customized side‐emitting optical fiber, guaranteeing its propulsion along the fiber body. The wavelength‐selective responsiveness of dye‐functionalized liquid crystal elastomers and the application of temporal illumination patterns enable sequential control of robot components. The
Antonio Lobosco +6 more
wiley +1 more source
Environmental-Interaction Robotic Systems: Compliant Actuation Approach
International Journal of Advanced Robotic Systems, 2007 Many successful designs of compliant actuators have been recently proposed. However, the challenge of providing passive and active motion in one actuator has remained.
Reza Ghorbani, Qiong Wu
doaj +1 more source
A Hybrid Soft Actuator Inspired by Grass-Spike: Design Approach, Dynamic Model, and Applications
Applied Sciences, 2020 This paper presents the bio-mimetic design approach, the dynamic model, and potential applications for a hybrid soft actuator. The proposed hybrid soft actuator consists of two main parts: a cylinder-shaped rigid core and soft silicone spikes wrapped ...
Dong-Woon Choi +4 more
doaj +1 more source
Momentum Control of Humanoid Robots with Series Elastic Actuators
, 2017 Humanoid robots may require a degree of compliance at the joint level for improving efficiency, shock tolerance, and safe interaction with humans. The presence of joint elasticity, however, complexifies the design of balancing and walking controllers ...
Nava, Gabriele +2 more
core +1 more source
Advanced Functional Materials, EarlyView.An original method is presented for producing artificial spider silk fibers with magnetic and magnetomechanical responsiveness, which consists in coating them with a nanometer‐thick layer of FeCo alloy by sputtering deposition. The challenge of combining organic materials and inorganic magnetic nanostructures is addressed, thus taking a step forward ...
Filippo Lanaro +5 more
wiley +1 more source
From Series Elastic Actuation to Series-Parallel Elastic Actuation
, 2014 Actuators are key components for moving and con- trolling a mechanism or system. However, the torque to weight ratio and the energy efficiency of the current state of the art actuators is much lower than in human muscles. As a consequence, among others, manipula- tors for human robot interaction in industry or service applications have a low payload to
Mathijssen, Glenn +4 more
openaire +1 more source