US – Page 327 – TechConnect Briefs

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 [...]

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 [...]

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 [...]

Silicon Carbide Micro/Nano Systems for Harsh Environment and Demanding Applications

Mehregany M., Fu X-A, Chen L., Case Western Reserve Univesity, US

Micro/nano systems enable the development of smart products and systems by augmenting the computational ability of microelectronics with the perception and control capabilities of sensors and actuators. Micro/nano systems are also known as micro- and [...]

Micropower Wireless Sensors

Chandrakasan A.P., Verma N., Kwong J., Daly D., Ickes N., Finchelstein D., Calhoun B., Massachusetts Institute of Technology, US

This paper describes circuit architectures and techniques to meet the specialized requirements of energy autonomous micro-sensor nodes. We address the fundamental components, namely the ADC, DSP, and radio, at the node-level to isolate important optimizations [...]

Wireless Integrated MicroSystems (WIMS): Coming Revolution in the Gathering of Information

Wise K.D., University of Michigan, US

This paper discusses recent developments in microsystems, including progress in low power sensing, circuit integration, wireless interfaces, and wafer-level packaging. Increasingly, such systems are realized on two or three chips in stacked configurations or embedded [...]

Some Novel Applications for Wireless Inertial Sensors

Paradiso J.A., Massachusetts Institute of Technology, US

Sensors have followed a corollary of Moore’s Law as they progressively decrease in size, cost, and often power. Nowhere is this more evident than with inertial sensor systems, as MEMS-based devices become steadily smaller and [...]

Novel Sensing Array Nanomaterials: Molecularly-Mediated Assemblies of Nanoparticles

Zhong C-J, Lu S., Luo J., Wang L., Shi X., Schadt M., Hao W., Luo J., State University of New York at Binghamton, US

Nanostructured sensing arrays combined with pattern-recognition analysis are expected to provide new opportunities for enhancing the design of sensor materials in terms of sensitivity and selectivity. We report findings of an investigation of nanostructured sensing [...]

Optimization of Diffractive MEMS for Optical Switching

Verheggen J., Panaman G., Khan Raja W., Castracane J., University at Albany-SUNY, US

Micro-Opto-Electro-Mechanical Systems (MOEMS) have found many applications in the fields of communication, spectroscopy, and displays. MOEMS devices based on dynamic diffractive elements are currently investigated at CNSE. The possible applications include: optical switching, signal monitoring, [...]

Negative-Poisson’s-Ratio (NPR) Microstructural Material by Soft-Joint Mechanism

Lu Y-W, Chang C-J, Lin P-T, Gea H-C, Rutgers University, US

We present an example of making a negative-coefficient material - Negative Poisson’s Ratio (NPR) material, which expands in the cross section when stretching. The NPR materials can provide unique characteristics in energy absorption. The NPR [...]