Document Detail

Pressure-dependent dissipation effect at multiple cantilever resonant modes.
MedLine Citation:
PMID:  22121764     Owner:  NLM     Status:  In-Process    
Based on the optical deflection method, the resonant characteristics of a microcantilever under various pressure have been observed at room temperature to understand the pressure-dependent dissipation effect. Especially, the quality factor of the cantilever has been measured for up to fourth harmonic mode of cantilever resonance as a function of pressure between 0.1 and 1000 Torr. By considering the intrinsic dissipation present in the system at 0.1 Torr, the pressure-dependent fluidic quality factors were determined for the multiple cantilever resonant modes. The inverse of the fluidic quality factor appears to follow two different asymptotic behaviors at high and low pressure limits, which indicates that the dynamics of the fluid, due to the oscillating cantilever, changes from Newtonian to non-Newtonian with decreasing pressure. The experimentally observed transition of the fluidic dissipation effect agrees well with the recently proposed rapidly oscillating flow model based on the Boltzmann equation, regardless of the different mode shapes.
Eun Joong Lee; Chul Sung Kim; Yun Daniel Park; Taejoon Kouh
Related Documents :
21592974 - High normal levels of albuminuria and risk of hypertension in indo-asian population.
726854 - Effect of respiratory physiotherapy on arterial oxygen tension.
21838394 - High pressure stabilization and emergent forms of pbh_{4}.
8287854 - The prediction of recommended energy expenditure for an 8 h work-day using an air-purif...
3985154 - Effect of parathyroid hormone on the determinants of glomerular filtration in dogs.
9228874 - Asymmetry of gait initiation in hemiparetic stroke subjects.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of nanoscience and nanotechnology     Volume:  11     ISSN:  1533-4880     ISO Abbreviation:  J Nanosci Nanotechnol     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-11-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088195     Medline TA:  J Nanosci Nanotechnol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6599-602     Citation Subset:  IM    
Department of Physics, Kookmin University, Seoul 136-702, Korea.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Kinetic Monte Carlo study on the suppression of boron transient enhanced diffusion with carbon pre-i...
Next Document:  Switching windows for a nanostructured cell of synthetic ferrimagnets.