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pro vyhledávání: '"Ryan C. Norris"'
Autor:
Aiping Yu, Patricia M. Nieva, Krishna Iyer, AbdulRahman Ghannoum, Liliana Zdravkova, Ryan C. Norris
Publikováno v:
ACS Applied Materials & Interfaces. 8:18763-18769
Optical characterization of graphite anodes in lithium ion batteries (LIB) is presented here for potential use in estimating their state of charge (SOC). The characterization is based on reflectance spectroscopy of the anode of commercial LIB cells a
Autor:
Victor Chabot, Patricia M. Nieva, Ryan C. Norris, J. Wang, Aiping Yu, Amir Khajepour, Krishna Iyer
Publikováno v:
SPIE Proceedings.
This study aims to expand the body of knowledge about the optical properties of battery cathode materials. Although some studies have been conducted on the optical properties of Lithium Iron Phosphate (LiFePO4), to the authors’ knowledge, this is t
Effects of dry plasma releasing process parameters and induced in-plane stress on MEMS devices yield
Publikováno v:
SPIE Proceedings.
An investigation into the effects of dry plasma etching release process parameters, local wafer position and induced inplane stress on the yield of MEMS devices is presented. Several identical wafer quarters, each subjected to different releasing pro
Publikováno v:
2011 IEEE 24th International Conference on Micro Electro Mechanical Systems.
We report the theory, design methodology and experiment of an electrostatically actuated silicon-plate Phononic Bandgap (PnBG) crystal architecture. This architecture is a high-order distributed mechanical system comprised of a two-dimensional PnBG c
Modeling of MEMS high-order mode inter-digital waveform synthesizer for Flexural Plate Array sensors
Publikováno v:
2008 IEEE Sensors.
In this work, the principles of Inter-Digital Transducer design are applied to develop parallel plate transducers that actuate high-order waveforms in Flexural Plate Arrays (FPAs). While in a high-order mode, the FPA may serve as an acoustic sensor o
Publikováno v:
2008 IEEE Sensors.
This paper presents the use of phononic band gap (PBG) theory for the design of mass-spring networks that can be used for vibration stabilization in MEMS sensors and/or actuators that need to display wideband immunity to vibrations over frequencies a
Autor:
Ryan C. Norris, J.S. Hamel
Publikováno v:
2007 Canadian Conference on Electrical and Computer Engineering.
This paper reviews a new emerging technology known as acoustic band gap or phononic band gap. This phenomenon is rapidly entering the silicon world and could potentially become a new generation of MEMS filters. A simulator developed by us is discusse
Publikováno v:
Journal of Applied Physics. 103:104908
A numerical study is conducted using finite difference time-domain analysis to determine the impact of periodic fractal-shaped inclusions on the frequency response of two-dimensional phononic or acoustic band gap crystals. Both solid host with solid