Results 181 to 190 of about 573,006 (357)

Design and Experimental Study of Semi Active System of Mr Damper for Vibration Control

open access: diamond, 2018
Vijaya Kumar Madura et al. Vijaya Kumar Madura et al.   +1 more
openalex   +1 more source

Dynamics and control of flexible spacecraft during and after slewing maneuvers [PDF]

open access: yes
The dynamics and control of slewing maneuvers of NASA Spacecraft COntrol Laboratory Experiment (SCOLE) are analyzed. The control problem of slewing maneuvers of SCOLE is formulated in terms of an arbitrary maneuver about any given axis.
Kakad, Yogendra P.
core   +1 more source

Stoma‐Shell Nanoarchitecture for Enhanced Plasma Confinement Catalysis in Synthesis of Ethanol from CO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐energy electron impact in plasma catalysis often causes excessive dissociation of active intermediates, limiting C2+ product selectivity. To address this challenge, a bio‐inspired stoma‐shell nanoarchitecture is designed to decouple electron impact from catalytic reaction zones.
Nan Zou   +5 more
wiley   +1 more source

Research on Whole-spacecraft Vibration Isolation based on Predictive Control

open access: diamond, 2011
Hongzi Fei   +3 more
openalex   +1 more source

Optimum mix of passive and active control of space structures [PDF]

open access: yes
The objective of this research was to test vibration suppression (settling time and jitter) of a large space structure (LSS) characterized by low frequency high global vibration modes.
Richards, Ken, Rogers, Lynn
core   +1 more source

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

open access: yesAdvanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang   +9 more
wiley   +1 more source

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