APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter iResearch App Facebook

BROWSE VOLUMES

Year Range: 
Search Issue | RSS Feeds RSS
Previous Issue Next Issue

3 Oct 2011

Volume 99, Issue 14, Articles (14xxxx)

Issue Cover Spotlight Figure

Appl. Phys. Lett. 99, 141901 (2011); http://dx.doi.org/10.1063/1.3644948 (3 pages)

G. Kozlowski, P. Zaumseil, M. A. Schubert, Y. Yamamoto, J. Bauer, J. Matejova, T. Schulli, B. Tillack, and T. Schroeder
Enlarge Image | Read More
Return to All Sections
back to top
RSS Feeds

The role of excitations statistic and nonlinearity in energy harvesting from random impulsive excitations

N. A. Khovanova and I. A. Khovanov

Appl. Phys. Lett. 99, 144101 (2011); http://dx.doi.org/10.1063/1.3647556 (3 pages)

Online Publication Date: 4 October 2011

Full Text: Read Online (HTML) | Download PDF

Show Abstract
Design of an efficient energy harvester is now feasible as technology develops and a viable approach to solve this need is to exploit the concept and application of a nonlinear design. In this letter, we conducted a comparative analysis of linear and nonlinear piezoelectric energy harvesting from random impulsive excitations modelled by white Poisson noise. It is shown that the harvester performance depends on both nonlinearity and properties of ambient energy, and nonlinearity should be optimized for a given type of ambient vibration in order to achieve efficient harvesting.
Show PACS
84.60.-h Direct energy conversion and storage
02.50.-r Probability theory, stochastic processes, and statistics
88.05.Bc Energy efficiency; definitions and standards
02.60.Pn Numerical optimization

Bio-inspired artificial iridophores based on capillary origami: Fabrication and device characterization

Supone Manakasettharn, J. Ashley Taylor, and Tom N. Krupenkin

Appl. Phys. Lett. 99, 144102 (2011); http://dx.doi.org/10.1063/1.3646394 (3 pages)

Online Publication Date: 4 October 2011

Full Text: Read Online (HTML) | Download PDF

Show Abstract
Cephalopods have evolved complex optical mechanisms of dynamic skin color control based on mechanical actuation of micro-scale optical structures such as iridophores and chromatophores. In this work, we describe the design, fabrication, and characterization of bio-inspired artificial iridophores, which resemble microflowers with flexible reflective petals, based on capillary origami microstructures. Two methods of petal actuation have been demonstrated—one based on the electrowetting process and the other by volume change of the liquid droplet. These results were in good agreement with a model derived to characterize the actuation dynamics.
Show PACS
87.80.Ek Mechanical and micromechanical techniques
87.17.Rt Cell adhesion and cell mechanics
87.16.-b Subcellular structure and processes
Return to All Sections
Close

Google Calendar

ADVERTISEMENT

Go to AIP Home   © AIP Publishing LLC
close