Results 111 to 120 of about 2,284,088 (388)

Full-Vector Signal Acquisition and Information Fusion for the Fault Prediction

open access: yesInternational Journal of Rotating Machinery, 2016
Fault prediction is the key technology of the predictive maintenance. Currently, researches on fault prediction are mainly focused on the evaluation of the intensities of the failure and the remaining life of the machine.
Lei Chen   +4 more
doaj   +1 more source

Optimal active vibration absorber: Design and experimental results [PDF]

open access: yes
An optimal active vibration absorber can provide guaranteed closed-loop stability and control for large flexible space structures with collocated sensors/actuators.
Juang, Jer-Nan   +2 more
core   +1 more source

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo   +4 more
wiley   +1 more source

Multivariate statistical analysis for damage and delamination in composite structures [PDF]

open access: yes, 2013
The article is devoted to the analysis of the vibration response of composite laminates .Our aim is to develop a method for analysis of the vibration response of structures made of composites which will also be used to develop a vibration-based health ...
Garcia, David, Trendafilova, Irina
core  

Ab Initio Study on 3D Anisotropic Ferroelectric Switching Mechanism and Coercive Field in HfO2 and ZrO2

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers a new switching mechanism in HfO2 and ZrO2, where the absence of a non‐polar layer along the a‐direction induces interaction between polar layers. Consequently, the switching barriers for growth are lower than those for nucleation in this direction, leading to a size‐dependent coercive field that matches experimental observations ...
Kun Hee Ye   +6 more
wiley   +1 more source

A study of shock impacts and vibration dose values onboard highspeed marine craft

open access: yes, 2008
The shocks and impacts encountered on small high-speed craft exceed the limits set for safe working practice according to current standards. European legislation regarding the exposure to vibration will have far reaching effects on the operators of such ...
Allen, D.P., Allen, R., Taunton, D.J.
core  

Perception enhancement system for automotive steering [PDF]

open access: yes, 2005
Laboratory-based experiments were conducted to evaluate the effect of the frequency and scale of transient vibration events on the human detection of road surface type by means of steering wheel vibration.
Berber-Solano, TP, Giacomin, J
core  

Harmonic Vibrations and Vibration Figures [PDF]

open access: yesNature, 1909
THE four authors of this book have each contributed an account of the construction and use of apparatus which they have invented or brought to perfection, the several parts of the book being independent of one another, but related by the similarity of the subject-matter.
openaire   +1 more source

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