Works Published in 2011
Displaying works 121 - 140 of 334 in total
Sorted by most recent date added to the index first, which may not be the same as publication date order.
2011 conference paper
Comparison of conventional and collapse-mode CMUT in 1-D array configuration
2011 IEEE International Ultrasonics Symposium. Presented at the 2011 IEEE International Ultrasonics Symposium (IUS).
Event: 2011 IEEE International Ultrasonics Symposium (IUS)
author keywords: CMUT; Collapse-mode; LOCOS; MEMS
Sources: Crossref, NC State University Libraries
Added: March 24, 2019
2011 conference paper
Volumetric intracardiac imaging using a fully integrated CMUT ring array: Recent developments
2011 IEEE International Ultrasonics Symposium. Presented at the 2011 IEEE International Ultrasonics Symposium (IUS).
Event: 2011 IEEE International Ultrasonics Symposium (IUS)
author keywords: electrophysiology; ultrasound; capacitive micromachined ultrasonic transducer; CMUT; intracardiac echo; real-time; volumetric; forward-looking
TL;DR:
The in vivo, volumetric, real-time imaging capability of the finalized Ring catheter in a pig heart is demonstrated using a PC-based imaging platform from Verasonics and a commercial Vivid7 imaging system.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 24, 2019
2011 conference paper
Real-time volumetric imaging system for CMUT arrays
2011 IEEE International Ultrasonics Symposium. Presented at the 2011 IEEE International Ultrasonics Symposium (IUS).
Event: 2011 IEEE International Ultrasonics Symposium (IUS)
author keywords: CMUT; Real-time imaging; Volumetric imaging; Ring array; 2-D array
TL;DR:
A flexible real-time volumetric ultrasound imaging system for capacitive micromachined ultrasonic transducer (CMUT) arrays, consisting of an ultrasound data acquisition system, an FPGA board, and a host PC, which works with arbitrary-shaped CMUT arrays and non-standard beamforming methods.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 24, 2019
2011 conference paper
Reciprocal spectrum sharing game and mechanism in cellular systems with Cognitive Radio users
2011 IEEE GLOBECOM Workshops (GC Wkshps). Presented at the 2011 IEEE Globecom Workshops.
Event: 2011 IEEE Globecom Workshops
TL;DR:
A cooperative spectrum sharing mechanism where CR users serve as relay nodes to enhance PS's performance, and PS leases some portion of resources for CR users' networking services by granting them radio access is proposed.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 24, 2019
2011 conference paper
Wide-area damping control of large power systems using a model reference approach
IEEE Conference on Decision and Control and European Control Conference. Presented at the 2011 50th IEEE Conference on Decision and Control and European Control Conference (CDC-ECC 2011).
Event: 2011 50th IEEE Conference on Decision and Control and European Control Conference (CDC-ECC 2011)
TL;DR:
It is shown that model reference control (MRC) can be an excellent choice to solve this damping problem when the power system consists of two dominant areas, or equivalently one dominant interarea mode.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 24, 2019
2011 conference paper
Virtual smart grid architecture and control framework
2011 IEEE International Conference on Smart Grid Communications (SmartGridComm). Presented at the 2011 IEEE Second International Conference on Smart Grid Communications (SmartGridComm).
Event: 2011 IEEE Second International Conference on Smart Grid Communications (SmartGridComm)
TL;DR:
This novel architecture extends the pervasive virtualization principle to the wide area smart grid sensory, communication, and control systems, and essentially embeds the Smart Grid (SG) into a cloud environment.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
9. Industry, Innovation and Infrastructure
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 24, 2019
2011 journal article
Capacitive micromachined ultrasonic transducers for medical imaging and therapy
Journal of Micromechanics and Microengineering, 21(5), 054004.
TL;DR:
The presented results prove the CMUT as a micro-electro-mechanical systems technology for many medical diagnostic and therapeutic applications.
(via Semantic Scholar)
europepmc.org (repository)
Sources: Crossref, NC State University Libraries
Added: March 18, 2019
2011 journal article
An equivalent circuit model for transmitting capacitive micromachined ultrasonic transducers in collapse mode
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 58(7), 1468–1477.
MeSH headings : Finite Element Analysis; Microtechnology; Transducers; Ultrasonography / instrumentation
TL;DR:
An equivalent nonlinear electrical circuit that can accurately simulate the mechanical behavior of a CMUT with given dimensions and mechanical parameters under any large or small signal electrical excitation, including the collapse mode is developed.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2011 journal article
Deep-collapse operation of capacitive micromachined ultrasonic transducers
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 58(11), 2475–2483.
MeSH headings : Computer-Aided Design; Electric Capacitance; Equipment Design; Equipment Failure Analysis; Transducers; Ultrasonic Therapy / instrumentation; Ultrasonography / instrumentation
TL;DR:
It is shown that the output pressure of CMUTs can be significantly increased by deep-collapse operation, which utilizes an electrical pulse excitation much higher than the collapse voltage.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2011 journal article
The feasibility of using thermal strain imaging to regulate energy delivery during intracardiac radio-frequency ablation
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 58(7), 1406–1417.
MeSH headings : Animals; Cardiac Surgical Procedures / methods; Catheter Ablation / adverse effects; Catheter Ablation / methods; Echocardiography / methods; Feasibility Studies; Hot Temperature; Intraoperative Complications / prevention & control; Myocardium / cytology; Signal Processing, Computer-Assisted; Swine
TL;DR:
This work proposes a potential tool to detect the moment when tissue damage occurs by using the reduced slope in the thermal strain curve as a function of heating time, and illustrated the feasibility of this method initially using porcine myocardium in vitro.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2011 journal article
Capacitive micromachined ultrasonic transducer (CMUT) as a chemical sensor for DMMP detection
Sensors and Actuators B: Chemical, 160(1), 1120–1127.
author keywords: Capacitive micromachined ultrasonic transducer; CMUT; MEMS resonator; Chemical sensor
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2011 journal article
Chemical Vapor Detection Using a Capacitive Micromachined Ultrasonic Transducer
Analytical Chemistry, 83(24), 9314–9320.
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2011 journal article
Focusing on futurist perspectives
IEEE Potentials, 30(6), 19–25.
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2011 journal article
Time-Scale Separation Designs for Performance Recovery of Power Systems With Unknown Parameters and Faults
IEEE Transactions on Control Systems Technology, 19(2), 382–390.
author keywords: Performance recovery; power systems; robust control; singular perturbation
TL;DR:
The effectiveness of several time-scale separation designs for robust stabilization and performance recovery to multimachine power systems with two commonly encountered classes of uncertainties, namely matched additive uncertainty and input multiplicative uncertainty are illustrated.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2011 journal article
A Measurement-Based Framework for Dynamic Equivalencing of Large Power Systems Using Wide-Area Phasor Measurements
IEEE Transactions on Smart Grid, 2(1), 68–81.
author keywords: Interarea oscillations; phasor measurement; power system model reduction
TL;DR:
This paper presents a concise overview of several new results on how to construct simplified interarea models of large power networks by using dynamic measurements available from phasor measurement units (PMUs) installed at specific points on the transmission line.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2011 journal article
Optimal measurement allocation for parametric model identification of electrical networks
Nonlinear Theory and Its Applications, IEICE, 2(3), 302–319.
author keywords: networks; Cramer-Rao bounds; swing equation; parameter estimation
TL;DR:
This paper develops optimal sensor siting methods along the edges of a large network of electrical oscillators to identify a parametric model for the network using dynamic measurements of electrical signals corrupted with Gaussian noise.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2011 conference paper
Universal MAP estimation in compressed sensing
2011 49th Annual Allerton Conference on Communication, Control, and Computing (Allerton). Presented at the 2011 49th Annual Allerton Conference on Communication, Control, and Computing (Allerton).
Event: 2011 49th Annual Allerton Conference on Communication, Control, and Computing (Allerton)
TL;DR:
This paper provides initial theoretical, algorithmic, and experimental evidence based on maximum a posteriori (MAP) estimation that shows the promise of universality in CS, particularly for low-complexity sources that do not exhibit standard sparsity or compressibility.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019
2011 journal article
LTCC Packages With Embedded Phased-Array Antennas for 60 GHz Communications
IEEE Microwave and Wireless Components Letters, 21(3), 142–144.
Contributors: D. Kam*, D. Liu *, A. Natarajan *, S. Reynolds*, H. Chen* & B. Floyd n
author keywords: Antenna-in-package; millimeter-wave package; phased-array antennas; 60 GHz
TL;DR:
A low-cost, fully-integrated antenna-in-package solution for 60 GHz phased-array systems is demonstrated, achieving excellent model-to-hardware correlation and beam-steered, non-line-of-sight links with data rates up to 5.3 Gb/s.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, NC State University Libraries, ORCID
Added: March 5, 2019
2011 journal article
A Fully-Integrated 16-Element Phased-Array Receiver in SiGe BiCMOS for 60-GHz Communications
IEEE Journal of Solid-State Circuits, 46(5), 1059–1075.
Contributors: A. Natarajan *, S. Reynolds*, M. Tsai *, S. Nicolson, J. Zhan*, D. Kam*, D. Liu *, Y. Huang*, A. Valdes-Garcia *, B. Floyd n
author keywords: Beamforming; BiCMOS; millimeter-wave; noise; phased array; power combiners; power splitter; receiver; RF-path phase-shifting; SiGe; WiGig; 60 GHz; 802.11 ad; 802.15.3 c
TL;DR:
A fully-integrated 16-element 60-GHz phased-array receiver is implemented in IBM 0.12-μm SiGe BiCMOS technology and a detailed analysis of the noise trade-offs in the receiver array design is presented to motivate architectural choices.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries, ORCID
Added: March 5, 2019
2011 journal article
Packages With Integrated 60-GHz Aperture-Coupled Patch Antennas
IEEE Transactions on Antennas and Propagation, 59(10), 3607–3616.
Contributors: D. Liu, J. Akkermans*, H. Chen* & B. Floyd n
author keywords: 60-GHz antennas; antenna arrays; antenna-in-package; aperture-coupled patch antennas; balanced-fed; fork-fed; high efficiency; wide bandwidth
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, NC State University Libraries, ORCID
Added: March 5, 2019
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