Search Results - "Oldham, Kenn R"

Elastically and Plastically Foldable Electrothermal Micro‐Origami for Controllable and Rapid Shape Morphing by Zhu, Yi, Birla, Mayur, Oldham, Kenn R., Filipov, Evgueni T.

“…Integrating origami principles within traditional microfabrication methods can produce shape morphing microscale metamaterials and 3D systems with complex…”
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Confocal laser endomicroscope with distal MEMS scanner for real-time histopathology by Lee, Miki, Li, Gaoming, Li, Haijun, Duan, Xiyu, Birla, Mayur B., Chang, Tse-Shao, Turgeon, Danielle K., Oldham, Kenn R., Wang, Thomas D.

“…Confocal laser endomicroscopy is an emerging methodology to perform real time optical biopsy. Fluorescence images with histology-like quality can be collected…”
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Wide-field endoscope accessory for multiplexed fluorescence imaging by Li, Gaoming, Lee, Miki, Chang, Tse-Shao, Yu, Joonyoung, Li, Haijun, Duan, Xiyu, Wu, Xiaoli, Jaiswal, Sangeeta, Feng, Shuo, Oldham, Kenn R., Wang, Thomas D.

“…A wide-field endoscope that is sensitive to fluorescence can be used as an adjunct to conventional white light endoscopy by detecting multiple molecular…”
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Impact-Based Amplification and Frequency Down-Conversion of Piezoelectric Actuation for Small Robotics by Shen, Congkai, Yu, Siyuan, Luo, Junjie, Oldham, Kenn R.

“…This paper explores a concept for dynamic amplification of piezoelectric actuator motion using repeated impacts between the active transducer and a compliant…”
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A Model-Free ON-OFF Iterative Adaptive Controller Based on Stochastic Approximation by Hahn, B., Oldham, K. R.

“…A model-free on-off iterative adaptive controller is described for application to microscale servo systems performing repeated motions under extremely strict…”
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An Electrostatic MEMS Translational Scanner with Large Out-of-Plane Stroke for Remote Axial-Scanning in Multi-Photon Microscopy by Li, Haijun, Duan, Xiyu, Li, Gaoming, Oldham, Kenn, Wang, Thomas

“…We present an electrostatic microelectromechanical systems (MEMS) resonant scanner with large out-of-plane translational stroke for fast axial-scanning in a…”
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Multi-Degree-of-Freedom Thin-Film PZT-Actuated Microrobotic Leg by Rhee, C., Pulskamp, J. S., Polcawich, R. G., Oldham, K. R.

“…As a novel approach to future microrobotic locomotion, a multi-degree-of-freedom (m-DoF) microrobotic appendage is presented that generates large range of…”
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Leg Shaping and Event-Driven Control of a Small-Scale, Low-DoF, Two-Mode Robot by Guo, Dingkun, Wermers, Larissa, Oldham, Kenn R.

“…Among small-scale mobile robots, multimodal locomotion can help compensate for limited actuator capabilities. However, supporting multiple locomotion modes or…”
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Mixed‐Transducer Micro‐Origami for Efficient Motion and Decoupled Sensing by Zhu, Yi, Ghrayeb, Anan, Yu, Joonyoung, Yang, Yiwei, Filipov, Evgueni T., Oldham, Kenn R.

“…This work introduces a mixed‐transducer micro‐origami to achieve efficient vibration, controllable motion, and decoupled sensing. Existing micro‐origami…”
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Nonlinear Dynamics of Large-Angle Circular Scanning With an Aluminum Nitride Micro-Mirror by Oldham, Kenn R., Ylivaara, Oili, Morits, Dmitry, Kyynarainen, Jukka

“…This paper introduces a model for nonlinear dynamics of a resonant micro-mirror designed for large-angle circular scanning. The mirror is driven by aluminum…”
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Improved Extended Kalman Filter Estimation Using Threshold Signal Detection With an MEMS Electrostatic Microscanner by Chen, Yi, Li, Haijun, Qiu, Zhen, Wang, Thomas D., Oldham, Kenn R.

“…In this paper, a threshold signal detector is proposed to improve the state estimation accuracy of an extended Kalman filter (EKF) and is validated…”
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A novel design approach for micro-robotic appendages comprised of active and passive elements with disparate properties by Milojević, Andrija, Shin, Minchul, Oldham, Kenn R

“…Recent innovations in microsystems materials and fabrication permit the creation of complex microactuation mechnisms with heterogeneous properties and…”
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3 degree-of-freedom resonant scanner with full-circumferential range and large out-of-plane displacement by Li, Haijun, Oldham, Kenn R, Wang, Thomas D

“…Microsystems-based scanning technologies can achieve deflection angles of several tens of degrees and translational displacements of a couple hundred microns…”
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Ultra-Compact Microsystems-Based Confocal Endomicroscope by Li, Gaoming, Duan, Xiyu, Lee, Miki, Birla, Mayur, Chen, Jing, Oldham, Kenn R., Wang, Thomas D., Li, Haijun

“…Point-of-care medical diagnosis demands immediate feedback on tissue pathology. Confocal endomicroscopy can provide real-time in vivo images with…”
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Non-invasive vascular resistance monitoring with a piezoelectric sensor and photoplethysmogram by Wang, Lu, Ansari, Sardar, Slavin, Daniel, Ward, Kevin, Najarian, Kayvan, Oldham, Kenn R.

“…•Compliant piezoelectric sensing is used with a photo plethysmogram to track arterial motion.•A simple model of local artery and tissue behavior is used to…”
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Multi-photon 3D imaging with an electrothermal actuator with low thermal and inertial mass by Birla, Mayur, Zou, Junyu, Afkhami, Zahra, Duan, Xiyu, Li, Haijun, Wang, Thomas D., Oldham, Kenn R.

“…[Display omitted] •Electrothermal scanners have limited bandwidth due to a large thermal time constant.•Scanner's thermal and inertial mass is reduced using…”
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Image Processing Metrics for Phase Identification of a Multiaxis MEMS Scanner Used in Single Pixel Imaging by Birla, Mayur, Duan, Xiyu, Li, Haijun, Lee, Miki, Li, Gaoming, Wang, Thomas D., Oldham, Kenn R.

“…This article applies image processing metrics to tracking of perturbations in mechanical phase delay in a multiaxis microelectromechanical system scanner. The…”
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Capacitive Sensing for 2-D Electrostatic MEMS Scanner in a Clinical Endomicroscope by Lee, Miki, Li, Haijun, Birla, Mayur B, Li, Gaoming, Wang, Thomas D, Oldham, Kenn R

“…A flexible fiber-coupled confocal laser endomicroscope has been developed using an electrostatic micro-electromechanical system (MEMS) scanner located in at…”
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Integrated monolithic 3D MEMS scanner for switchable real time vertical/horizontal cross-sectional imaging by Li, Haijun, Duan, Xiyu, Qiu, Zhen, Zhou, Quan, Kurabayashi, Katsuo, Oldham, Kenn R, Wang, Thomas D

“…We present an integrated monolithic, electrostatic 3D MEMS scanner with a compact chip size of 3.2 × 2.9 mm(2). Use of parametric excitation near resonance…”
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Scaling down the dimensions of a Fabry-Perot polymer film acoustic sensor for photoacoustic endoscopy by Li, Tong, Chang, Tse-Shao, Shirazi, Ahmad, Wu, Xiaoli, Lin, Wei-Kuan, Zhang, Ruoliu, Guo, Jay L, Oldham, Kenn R, Wang, Thomas D

“…A Fabry-Perot (FP) polymer film sensor can be used to detect acoustic waves in a photoacoustic endoscope (PAE) if the dimensions can be adequately scaled down…”
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