Advanced Self Powered Systems of Sensors and Technologies Center
Works Published in 2011
Displaying works 41 - 60 of 91 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
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 book
Stabilization of Thin Films, Foams, Emulsions and Bifluid Gels with Surface-Active Solid Particles
In Colloid Stability and Application in Pharmacy (Vol. 3, pp. 277–306).
Contributors: K. Velikov * & O. Velev n
Source: ORCID
Added: March 21, 2019
2011 journal article
Magnetically responsive pickering foams
Journal of the American Chemical Society, 133(35), 13856–13859.
Contributors: S. Lam n, E. Blanco n, S. Smoukov n, K. Velikov * & O. Velev n
MeSH headings : Iron Carbonyl Compounds / chemistry; Magnetic Fields; Magnets / chemistry; Methylcellulose / analogs & derivatives; Methylcellulose / chemistry; Oleic Acid / chemistry; Particle Size; Solutions / chemistry
TL;DR:
A new class of Pickering foams which can be manipulated using a magnetic field is introduced, stabilized by a mixture of magnetic and nonmagnetic particles, and has potential applications in noncontact defoaming processes.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(OpenAlex)
Source: ORCID
Added: March 21, 2019
2011 journal article
Aqueous soft matter based photovoltaic devices
Journal of Materials Chemistry, 21(1), 72–79.
Contributors: H. Koo n, S. Chang *, J. Slocik *, R. Naik * & O. Velev n
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Source: ORCID
Added: March 21, 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
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
Ionic Current Rectification in Soft-Matter Diodes with Liquid-Metal Electrodes
Advanced Functional Materials, 22(3), 625–631.
author keywords: hydrogels; liquid metal; ionic current rectification; polyelectrolytes; soft matter; soft electronics; electrochemical diodes
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: ORCID, NC State University Libraries
Added: December 6, 2018
2011 article
Performance improvement of AlGaN/GaN high electron mobility transistors with atomic layer deposition (ALD) of SiO2 and HfAlO dielectrics
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 8, NO 7-8, Vol. 8.
author keywords: GaN; HFET; MOS-HFET; ALD
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2011 conference paper
Bioelectrical enhancement in tissue-electrode coupling with metamorphic-stage insertions for insect machine interfaces
2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 5420–5423.
MeSH headings : Animals; Electric Conductivity; Electrodes, Implanted; Flight, Animal / physiology; Life Cycle Stages / physiology; Man-Machine Systems; Manduca / physiology; Muscle, Skeletal / physiology; Prosthesis Implantation / methods; Surface Properties
TL;DR:
The bioelectrical enhancement at the tissue-electrode interface allowed with these metamorphic stage insertions, where the electrodes implanted in the insect during the early pupal stages and right after emergence were compared.
(via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018
2011 journal article
Scaling effect of flexoelectric (Ba,Sr)TiO3 microcantilevers
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 5(9), 350–352.
author keywords: flexoelectricity; microcantilevers; (Ba,Sr)TiO3; sensors
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Coating Alumina on Catalytic Iron Oxide Nanoparticles for Synthesizing Vertically Aligned Carbon Nanotube Arrays
ACS APPLIED MATERIALS & INTERFACES, 3(11), 4180–4184.
author keywords: carbon nanotubes; nanoparticles; iron oxide; chemical vapor deposition; atomic layer deposition
MeSH headings : Aluminum Oxide / chemistry; Catalysis; Ferric Compounds / chemistry; Nanotechnology / instrumentation; Nanotubes, Carbon / chemistry
TL;DR:
Comparison with uncoated NPs shows that the Al(2)O(3) coating effectively prevents the catalyst NPs from sintering and coalescing, resulting in improved control over VACNT growth.
(via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Suppression of dielectric crystallization on metal by introduction of SiO2 layer for metal floating gate memory blocking oxide
APPLIED PHYSICS LETTERS, 99(22).
author keywords: aluminium compounds; amorphous state; crystallisation; flash memories; hafnium compounds; high-k dielectric thin films; MIM structures; permittivity; silicon compounds; thermal stability; X-ray diffraction
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2011 journal article
Producing superior composites by winding carbon nanotubes onto a mandrel under a poly(vinyl alcohol) spray
CARBON, 49(14), 4786–4791.
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Multivalued Logic Using a Novel Multichannel GaN MOS Structure
IEEE ELECTRON DEVICE LETTERS, 32(10), 1379–1381.
author keywords: Gallium nitride; heterostructure; MOS device; multichannel; multivalued logic (MVL); quaternary logic
TL;DR:
This letter presents a novel charge-based multistate transistor device on the AlGaN/GaN system which uses a given gate length but handles more than two states any time, and proposes architectures for the implementation of some basic quaternary logic gates.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2011 journal article
Static Friction between Silicon Nanowires and Elastomeric Substrates
ACS NANO, 5(9), 7404–7410.
author keywords: nanowire; PDMS; static friction; interfacial shear strength; adhesion; UVO treatment
TL;DR:
First direct measurements of static friction force and interfacial shear strength between silicon (Si) nanowires (NWs) and poly(dimethylsiloxane) (PDMS) are reported, which will enable quantitative interface design and control for many device applications of NWs.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
6. Clean Water and Sanitation
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Mechanical and electrical property improvement in CNT/Nylon composites through drawing and stretching
COMPOSITES SCIENCE AND TECHNOLOGY, 71(14), 1677–1683.
author keywords: Carbon nanotubes; Nanocomposites; Polymer-matrix composites (PMCs); Mechanical properties; Electrical properties
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Site-specific sonoporation of human melanoma cells at the cellular level using high lateral-resolution ultrasonic micro-transducer arrays
BIOSENSORS & BIOELECTRONICS, 27(1), 25–33.
author keywords: Biochip; Cell membrane wound; Piezoelectric-based transducer; Quantum dot, Radiation pressure; Transmembrane transport
MeSH headings : Cell Line, Tumor; Cell Membrane; Drug Delivery Systems / instrumentation; Drug Delivery Systems / methods; Humans; Pressure; Quantum Dots; Transducers; Transfection / instrumentation; Transfection / methods; Ultrasonics / instrumentation; Ultrasonics / methods
TL;DR:
A new instrumental method by which human melanoma cells are sonoporated via radiation pressures exerted by highly-confined ultrasonic waves produced by high lateral-resolution ultrasonic micro-transducer arrays (UMTAs) is developed, enabling cellular-level site-specific sonoporation within the cell monolayer due to UMTAs.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
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