Works Published in 2009
Displaying works 121 - 140 of 323 in total
Sorted by most recent date added to the index first, which may not be the same as publication date order.
2009 conference paper
Forward-looking volumetric intracardiac imaging using a fully integrated CMUT ring array
2009 IEEE International Ultrasonics Symposium. Presented at the 2009 IEEE International Ultrasonics Symposium.
Event: 2009 IEEE International Ultrasonics Symposium
TL;DR:
The presented experimental results demonstrate the performance of the forward-looking volumetric intracardiac imaging approach and acquire a PC-based real-time imaging platform and demonstrated real- time imaging with the ring array.
(via Semantic Scholar)
Sources: Crossref, ORCID
Added: March 24, 2019
2009 conference paper
A 2D CMUT hydrophone array: Characterization results
2009 IEEE International Ultrasonics Symposium. Presented at the 2009 IEEE International Ultrasonics Symposium.
Event: 2009 IEEE International Ultrasonics Symposium
Sources: Crossref, ORCID
Added: March 24, 2019
2009 conference paper
Multi-row linear cMUT array using cMUTs and multiplexing electronics
2009 IEEE International Ultrasonics Symposium. Presented at the 2009 IEEE International Ultrasonics Symposium.
Event: 2009 IEEE International Ultrasonics Symposium
TL;DR:
The challenges of trenched cMUT attach to a laminate interposer as part of aTileable module will be discussed and the architecture of the tileable module build-up for manufacturability, reliability, acoustic planarity, and reduced spacing between tiles and cM UT chips will be addressed.
(via Semantic Scholar)
Sources: Crossref, ORCID
Added: March 24, 2019
2009 conference paper
Synchronized Phasor Data Estimation of Dynamic Parameters for Radial Power System Transfer Path with Voltage Reinforcement
11th Symposium of Specialists in Electric Operational and Expansion Planning (SEPOPE). Belem, Brazil.
Source: NC State University Libraries
Added: March 24, 2019
2009 conference paper
Some new results on the identification of two-area power system models with SVC control
2009 American Control Conference. Presented at the 2009 American Control Conference.
Event: 2009 American Control Conference
TL;DR:
This paper first derive expressions for the aggregated equivalent reactance and machine inertias in each area, and then shows how these parameters can be computed from the voltage and frequency measurements at three buses in the transfer path including the SVC bus.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 24, 2019
2009 conference paper
Performance oriented high gain redesigns for FACTS-controlled SMIB power systems
Proceedings of the 48h IEEE Conference on Decision and Control (CDC) held jointly with 2009 28th Chinese Control Conference. Presented at the 2009 Joint 48th IEEE Conference on Decision and Control (CDC) and 28th Chinese Control Conference (CCC).
Event: 2009 Joint 48th IEEE Conference on Decision and Control (CDC) and 28th Chinese Control Conference (CCC)
TL;DR:
The singular perturbation based nonlinear control redesign of [1] is applied to guarantee a desired transient performance of Single Machine Infinite Bus electric power systems with dynamic Flexible AC Transmission System (FACTS) control.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 24, 2019
2009 report
Distributed Compressive Sensing
TL;DR:
A new theory for distributed compressive sensing (DCS) is introduced that enables new distributed coding algorithms for multi-signal ensembles that exploit both intra- and inter-signal correlation structures.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 23, 2019
2009 chapter
Millimeter-Wave System Overview
In Advanced Millimeter-Wave Technologies (pp. 709–727).
Contributors: S. Reynolds*, A. Valdes-Garcia *, B. Floyd* , Y. Katayama* & A. Natarajan *
Sources: Crossref, NC State University Libraries, ORCID
Added: March 22, 2019
2009 journal article
Wafer-bonded 2-D CMUT arrays incorporating through-wafer trench-isolated interconnects with a supporting frame
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 56(1), 182–192.
MeSH headings : Air; Electric Impedance; Equipment Design; Fourier Analysis; Micro-Electrical-Mechanical Systems / instrumentation; Phantoms, Imaging; Silicon / chemistry; Soybean Oil / chemistry; Transducers; Ultrasonography / instrumentation
TL;DR:
This study shows that through-wafer trench-isolation with a supporting frame is a viable solution for providing electrical interconnects to CMUT elements and that 2-D arrays fabricated using wafer-bonding deliver good performance.
(via Semantic Scholar)
Sources: Crossref, ORCID
Added: March 18, 2019
2009 journal article
Experimental Studies With a 9F Forward-Looking Intracardiac Imaging and Ablation Catheter
Journal of Ultrasound in Medicine, 28(2), 207–215.
author keywords: ablation; electrophysiology; interventional guidance; intracardiac ultrasound array; miniaturized
MeSH headings : Animals; Catheter Ablation / instrumentation; Catheter Ablation / methods; Echocardiography / instrumentation; Echocardiography / methods; Equipment Design; Equipment Failure Analysis; Heart Atria / diagnostic imaging; Heart Atria / surgery; Heart Ventricles / diagnostic imaging; Heart Ventricles / surgery; Reproducibility of Results; Sensitivity and Specificity; Swine; Transducers
TL;DR:
The forward‐looking intracardiac catheter has been adapted to work easily on an existing commercial imaging platform with very minor software modifications and is capable of both low‐artifact ablation imaging on a standard clinical imaging system and high–frame rate myocardial wall strain rate imaging for detecting changes in cardiac mechanics associated with ablation.
(via Semantic Scholar)
Sources: Crossref, ORCID
Added: March 18, 2019
2009 journal article
Next-gen ultrasound
IEEE Spectrum, 46(5), 44–54.
TL;DR:
Pregnant ultrasound images serve a serious purpose and can prove immensely important, as when they allow doctors to diagnose and sometimes even repair a congenital malformation while the baby is still in the womb.
(via Semantic Scholar)
Sources: Crossref, ORCID
Added: March 18, 2019
2009 journal article
Minimally Redundant 2-D Array Designs for 3-D Medical Ultrasound Imaging
IEEE Transactions on Medical Imaging, 28(7), 1051–1061.
author keywords: Beamforming; biomedical ultrasonics; image reconstruction; phased arrays; ultrasonic imaging
MeSH headings : Algorithms; Computer Simulation; Image Processing, Computer-Assisted / methods; Imaging, Three-Dimensional / methods; Transducers; Ultrasonography / methods
TL;DR:
Four reduced redundancy 2-D array configurations for miniature 3-D ultrasonic imaging systems are explored and theoretical and simulated point spread functions of the array configurations are presented along with quantitative comparison in terms of the front-end complexity and image quality.
(via Semantic Scholar)
Sources: Crossref, ORCID
Added: March 18, 2019
2009 journal article
An integrated circuit with transmit beamforming flip-chip bonded to a 2-D CMUT array for 3-D ultrasound imaging
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 56(10), 2145–2156.
MeSH headings : Echocardiography; Electronics, Medical / instrumentation; Equipment Design; Imaging, Three-Dimensional / instrumentation; Imaging, Three-Dimensional / methods; Phantoms, Imaging; Transducers; Ultrasonography / instrumentation; Ultrasonography / methods
TL;DR:
It is shown that the IC can produce steered and focused ultrasound beams, and a combined IC and transducer array can lead to a portable, high-performance, and inexpensive 3-D ultrasound imaging system.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, ORCID
Added: March 18, 2019
2009 journal article
Three-dimensional photoacoustic imaging using a two-dimensional CMUT array
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 56(11), 2411–2419.
MeSH headings : Computer-Aided Design; Elasticity Imaging Techniques / instrumentation; Equipment Design; Equipment Failure Analysis; Feasibility Studies; Imaging, Three-Dimensional / instrumentation; Reproducibility of Results; Sensitivity and Specificity; Transducers
TL;DR:
Using a 2-D array of capacitive micromachined ultrasonic transducers (CMUTs) to perform 3-D photoacoustic and acoustic imaging using a tunable optical parametric oscillator laser system that generates nanosecond laser pulses was used to induce the photoac acoustic signals.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water
(OpenAlex)
Sources: Crossref, ORCID
Added: March 18, 2019
2009 conference paper
Modeling the pulse-echo response of a 2D CMUT array element
2009 IEEE International Ultrasonics Symposium. Presented at the 2009 IEEE International Ultrasonics Symposium.
Event: 2009 IEEE International Ultrasonics Symposium
Sources: Crossref, NC State University Libraries
Added: March 18, 2019
2009 conference paper
Wafer bonded capacitive micromachined underwater transducers
2009 IEEE International Ultrasonics Symposium. Presented at the 2009 IEEE International Ultrasonics Symposium.
Event: 2009 IEEE International Ultrasonics Symposium
UN Sustainable Development Goal Categories
14. Life Below Water
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 18, 2019
2009 journal article
Dual-electrode CMUT with non-uniform membranes for high electromechanical coupling coefficient and high bandwidth operation
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 56(6), 1270–1276.
MeSH headings : Computer-Aided Design; Electrodes; Equipment Design; Equipment Failure Analysis; Membranes, Artificial; Micro-Electrical-Mechanical Systems / instrumentation; Reproducibility of Results; Sensitivity and Specificity; Transducers; Ultrasonography / instrumentation
TL;DR:
Measurement results on dual-electrode CMUT demonstrating electromechanical coupling coefficient (k2) of 0.82 at 90% of collapse voltage as well as 136% 3 dB one-way fractional bandwidth at the transducer surface around the design frequency of 8 MHz are reported.
(via Semantic Scholar)
europepmc.org (repository)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2009 journal article
Time-scale separation redesigns for stabilization and performance recovery of uncertain nonlinear systems
Automatica, 45(1), 34–44.
author keywords: Robust nonlinear control; Singular perturbation; Performance recovery
TL;DR:
Using singular perturbation theory it is proved that the trajectories of the respective two-time-scale and three-time scale redesigned systems approach those of the nominal system when the filter gains are increased.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2009 journal article
Robust Stabilization and Performance Recovery of Nonlinear Systems With Unmodeled Dynamics
IEEE Transactions on Automatic Control, 54(6), 1351–1356.
author keywords: Nonlinear systems; unmodeled dynamics
TL;DR:
A time-scale separation redesign for stabilization and performance recovery of nonlinear systems with unmodeled dynamics and designs two sets of high gain filters to force this estimate to converge to the nominal input on an intermediate time- scale.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2009 journal article
Interarea Model Estimation for Radial Power System Transfer Paths With Intermediate Voltage Control Using Synchronized Phasor Measurements
IEEE Transactions on Power Systems, 24(3), 1318–1326.
author keywords: Generator voltage support; phasor measurement unit (PMU); power transfer path; static VAr compensator (SVC)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
Citation Index includes data from a number of different sources. If you have questions about the sources of data in the Citation Index or need a set of data which is free to re-distribute, please contact us.
Certain data included herein are derived from the Web of Science© and InCites© (2024) of Clarivate Analytics. All rights reserved. You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.
