Papers – Page 9 – TechConnect Briefs

Systematic Approach on Modeling and Identification for Nanobattery Prototyping

Bhattacharya P., Ye Z., Walker E., Lacy F., Banerjee M., Southern University, US

Nanobattary microstructure consists of anode, cathode, electrolyte, separator for miniaturized power source. Miniaturization is a challenging area of research. Miniature power sources have a variety of applications on miniature power-controlled devices. Li-Ion is selected by [...]

A Nyström-Like Approach to Integral Equations with Singular Kernels

Kuo S.-H., White J.K., Massachusetts Institute of Technology, US

When boundary element methods are used to solve Laplace or Helmholtz problmes associated with complicated three-dimensional geometries, the associated integral equation is typically discretized using a piecewise constant basis, and a system of equations is [...]

Parametric Simulation of MEMS Based on Automatic Differentiation of Finite Element Codes

Kolchuzhin V.A., Mehner J.E., Gessner T., Doetzel W., Chemnitz University of Technology, DE

The key idea of the presented approach, which account for parameter variations in a single finite element run, is to compute not only the governing system matrices of the FE problem but also their partial [...]

Wall Functions for Incorporation of Atomistic Physics into Continuum Modeling of Electrokinetic Flow

Nilson R.H., Griffiths S.K., Sandia National Laboratories, US

The atomistic physics of fluid/solid interfacial layers may substantially influence liquid flow and ion transport, particularly in nanoscale channels. Previous studies addressing non-continuum fluid mechanics have been largely based on Molecular Dynamics (MD) simulations that [...]

Influence of the Casimir force on the static and dynamic behavior of electrostatically driven micromechanical resonators

Stoffels S., Fernández L.J., Puers R., Tilmans H.A.C., IMEC, BE

Nowadays, electrostatically driven high frequency micromechanical resonators are being developed in which the gap spacing is minimized in order to achieve sufficiently high electromechanical coupling. Typical gap spacings for resonators operated close to a GHz [...]

Trade-Offs in Cooperative Goal Seek using Nano-Devices

Chnadrasekaran S., Hougen D.F., Oklahoma University, US

Micro and nano-scale devices and systems require not only nano-scale components but also minimalistic hardware design and control methodologies. When constructing mobile nano-devices, the numbers of motors and sensors should be reduced and the control [...]

Sensitivity of Initially Stressed Un-symmetric Micro-Layered Plate in Large Deflection due to Lateral Load

Chen C-F, Chung-Hua University, TW

Initial tension often arises in a typical micro-fabrication process. It has been well recognized that the magnitude of initial tension could be high enough to cause a serious degradation in structural performance such as the [...]

A Nanoporous Silicon 1-D Photonic Band Gap Microcavity as a Selective Optical Sensor

Chappel S., DeLouise L., Gersten B., Queens College, US

A nanoporous silicon (pSi) one dimensional photonic band gap (1-D PBG) with a microcavity was prepared for selective sensing in the optical regime. The cavity resonance of the localized mode was tuned by the thickness [...]

Electrospun TiO2 nanofibers for gas sensing applications

Kim D.Y., Kim I-D, Rothschild A., Tuller H.L., Kim D.Y., Kim I-D, Jo S.M., Korea Institute of Science and Technology, KR

TiO2 fiber mats were deposited onto Al2O3 substrates with interdigitated Pt electrodes by means of electrospinning from a solution of DMF and PVAc synthesized using bulk radical polymerization of titanium propoxide and acetic acid as [...]

An Analytical Model for Multi-layer and Multi-electrode Piezoelectric Ceramic Actuators

Wang B-L., Mai Y-W., The University of Sydney, AU

The use of piezoelectric ceramics in multilayer actuator is increasing. This paper studies electroelastic field concentrations ahead of electrodes for multilayer piezoelectric actuators. The electrodes are vertical to and terminated near the edges of the [...]