Results 251 to 260 of about 156,865 (313)
Advanced Functional Materials, EarlyView.Stable ion‐exchange doping of organic semiconductor single crystals is demonstrated using bulky hydrophobic anions. Electrical conductivity is significantly enhanced and maintained under ambient air and elevated temperatures, while intrinsic strain sensitivity remains intact over 100 000 strain cycles. The approach highlights the critical role of anion
Tomohiro Murata +5 more
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Advanced Functional Materials, EarlyView.Herein, the topochemical transformation of cobalt‐based layered hydroxides into nanocomposites is investigated using advanced real‐time characterization techniques combined with thermogravimetric analysis. The study reveals how interlayer carboxylic acids direct the transformation pathway, highlighting the role of carbon content and anion length. These
Camilo Jaramillo‐Hernández +5 more
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Vibration control of wind turbines with variable rotor sped and grid faults
, 2014 Andrea Staino
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Journal of the Franklin Institute, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Reithmeier, E., Leitmann, G.
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Reithmeier, E., Leitmann, G.
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Vibration control unit and vibration control body
The Journal of the Acoustical Society of America, 2008A vibration control unit in which a rolling element having a first curved surface that is a convex surface is interposed between a first and second members, and the rolling element is allowed rolling with respect to the first member in the first curved surface thereof.
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Developments in Vibrator Control
EAGE Vibroseis Workshop - Vibroseis acquisition and processing half century later, new developments in data quality and productivity, 2008ABSTRACTHydraulic limitations, non‐rigidity of the baseplate as well as variable characteristics of the ground constantly distort the downgoing energy output by vibrators. Therefore, a real time feedback control must be performed to continuously adjust the emitted force to the reference pilot signal. This ground force is represented by the weighted sum
G. Ollivrin, D. Boucard
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Adaptive vibration control using a virtual-vibration-absorber controller
Journal of Sound and Vibration, 2007A control algorithm emulating a dynamic vibration absorber (DVA) is developed for a flexible structure subject to harmonic disturbances of uncertain frequency. The virtual vibration absorber is mathematically equivalent to a passive DVA, but its stiffness, inertia and damping coefficient are adjustable by software.
Shang-Teh Wu, Ying-Jhe Shao
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Vibration Controller of Marine Electromagnetic Vibrator
2009 International Conference on Measuring Technology and Mechatronics Automation, 2009Marine electromagnetic vibrator is a non-explosive seismic source, for high resolution detection of marine seismic exploration ?which used sublevel sweep mode of marine electromagnetic vibrator. The vibration controller provides sublevel Chirp signal by marine geology condition. The Chirp signal was sent to exciter through power amplifier.
Feng Sun, Zu Bin Chen, Jun Lin
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Vibration and Vibration Control
1990Vibration in machinery and structures is caused by the disturbing forces from, for example, reciprocating masses, unbalanced rotating masses, variable fluid pressure in hydraulic systems, turbulent wind loadings, wave action on structures, ground effects on vehicles, etc.
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