Results 121 to 130 of about 294,420 (308)

Capture of free-flying payloads with flexible space manipulators [PDF]

A recently developed control system for capturing free-flying payloads with flexible manipulators is discussed. Three essential points in this control system are, calculating optimal path, using a vision sensor for an external sensor, and controlling ...
Iikura, S., Komatsu, T., Miura, H., Shimoyama, I., Uenohara, M.   +4 more
core   +1 more source

Piezoceramics-based Devices for Active Balancing of Flexible Shafts [PDF]

, 2006
This paper focuses on vibration control of flexible shafts by means of rotorfixed piezoelectric materials. The target is to realize compact solutions for the suppression of problematic resonant vibration at so-called flexural critical speeds.
Boer, A. de, Sloetjes, P.J.
core   +1 more source

Structure–Transport–Ion Retention Coupling for Enhanced Nonvolatile Artificial Synapses

Advanced Functional Materials, EarlyView.
Nitrogen incorporation into the conjugated backbone of donor–acceptor polymers enables efficient charge transfer and deep ion embedding in organic electrochemical synaptic transistors (OESTs). This molecular‐level design enhances non‐volatile synaptic properties, providing a new strategy for developing high‐performance and reliable neuromorphic devices.
Donghwa Lee, Jinsung Kim, Sein Chung, Junho Sung, Chaeyeon Han, Eunho Lee   +5 more
wiley   +1 more source

Active vibration control of a cable-driven parallel robot using active rods

Mechanics & Industry
This study deals with the integration of two active rods on a cable-driven parallel robot (CDPR) to control its vibrations. Three control laws derived from Integral Force Feedback (IFF) are proposed and compared analytically using a dynamic CDPR model ...
Lacaze Florian, Delpoux Romain, Remond Didier, Chesne Simon   +3 more
doaj   +1 more source

High performance, accelerometer-based control of the Mini-MAST structure at Langley Research Center [PDF]

Many large space system concepts will require active vibration control to satisfy critical performance requirements such as line of sight pointing accuracy and constraints on rms surface roughness. In order for these concepts to become operational, it is
Collins, Emmanuel G., Jr., Hyland, David C., King, James A., Phillips, Douglas J.   +3 more
core   +1 more source

Adaptive integral sliding mode control for active vibration absorber design [PDF]

, 2000
A new tuning method for active vibration absorber design is presented in this paper. A robust, adaptive control scheme based on a variable structure with an adaptive discontinuity surface is designed and simulated.
Cao, Tri-Tan Van, Chen, Lei, He, Fangpo, Sammut, Karl   +3 more
core  

Rational Device Design and Doping‐Controlled Performance in Fast‐Response π‐Ion Gel Transistors

Advanced Functional Materials, EarlyView.
π‐Ion gel transistors (PIGTs) achieve extraordinary transconductance and stability through device configuration optimization, high‐mobility conjugated polymer selection, and hole scavenger doping. The optimized PIGTs maintain performance on flexible substrates, enabling printed, fast‐response, and wearable electronics.
Masato Kato, Soh Kushida, Nafees Umar Draz, Dan Kyotani, Emanuel Smarsly, Kyota Yoshinaga, Wenhao He, Uwe H. F. Bunz, Kazuhiro Marumoto, Tatsuya Mori, Yohei Yamamoto   +10 more
wiley   +1 more source

Active control of vibration and radiated noise in the shaft-shell coupled system of an underwater vehicle

Applied Ocean Research
Active control is effective in reducing the low-frequency vibration and acoustic radiation of the stern system of an underwater vehicle. This paper theoretically investigates the reduction of vibration and far-field radiation noise in the stern system of
Yaqi Tian, Cong Zhang, Lei Yang
doaj   +1 more source

Efficient NiOx Hole Transport Layers Enabled by Multifunctional MXenes for High‐Performance Tin‐Lead Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
An efficient NiOx HTL is successfully prepared by introducing MXene as an additive without further surface modification to fabricate high‐performance FASn0.5Pb0.5I3 perovskite solar cells. The introduction of MXene contributes to improved conductivity of NiOx, better aligned at NiOx/perovskite interfaces, and enhanced quality of perovskite films ...
Lijun Chen, Guanqi Tang, Yanghou Wang, Xiaolong Cao, Junjun Jin, Jie Tang, Liyang Yu, Zheng Zhou, Peng You, Hanlin Hu, Weiqing Yang, Qidong Tai, Feng Yan   +12 more
wiley   +1 more source

Quasi-modal vibration control by means of active control bearings [PDF]

This paper investigates a design method of an active control bearing system with only velocity feedback. The study provides a new quasi-modal control method for a control system design of an active control bearing system in which feedback coefficients ...
Fleming, D. P., Nonami, K.
core   +1 more source