Advanced Self Powered Systems of Sensors and Technologies Center
Works Published in 2012
Displaying works 21 - 40 of 124 in total
Sorted by most recent date added to the index first, which may not be the same as publication date order.
2012 speech
Lyapunov-based Control and Trajectory Planning for Restoring Human Limb Function
Sharma, N. (2012, February). Presented at the Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA.
Event: at Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA
Source: NC State University Libraries
Added: September 30, 2021
2012 speech
Nonlinear Control and Optimization Methods for Restoring Walking via Neuroprosthetics
Sharma, N. (2012, March). Presented at the Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE.
Event: at Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE
Source: NC State University Libraries
Added: September 30, 2021
2012 speech
Nonlinear Control and Optimization Methods for Restoring Walking via Neuroprosthetics
(2012, April). Presented at the Department of Mechanical and Industrial Engineering, University of Massachusetts Amherst, Amherst, MA.
Event: at Department of Mechanical and Industrial Engineering, University of Massachusetts Amherst, Amherst, MA
Source: NC State University Libraries
Added: September 30, 2021
2012 speech
Nonlinear Control and Optimization Methods for Functional Electrical Stimulation
Sharma, N. (2012, February). Department of Biomedical Engineering, presented at the Department of Biomedical Engineering, University of California, Davis, Davis, CA.
Event: Department of Biomedical Engineering at University of California, Davis, Davis, CA
Source: NC State University Libraries
Added: September 24, 2021
2012 speech
Lyapunov-based Control and Trajectory Planning for Restoring Human Limb Function,
Sharma, N. (2012, March). Presented at the Department of Mechanical Engineering, University of California Riverside, Riverside, CA.
Event: Department of Mechanical Engineering at University of California Riverside, Riverside, CA
Source: NC State University Libraries
Added: September 24, 2021
2012 speech
Nonlinear Control and Optimization Methods for Functional Electrical Stimulation
Sharma, N. (2012, January). Presented at the Department of Mechanical Engineering, University of Alberta, Edmonton, AB, Canada.
Event: Department of Mechanical Engineering at University of Alberta, Edmonton, AB, Canada
Source: NC State University Libraries
Added: September 23, 2021
2012 journal article
Rise-based adaptive control of a control affine uncertain nonlinear system with unknown state delays
IEEE Transactions on Automatic Control, 57(1), 255–259.
Contributors: N. Sharma* , S. Bhasin *, Q. Wang * & W. Dixon *
author keywords: Desired compensation adaptation law (DCAL)
TL;DR:
A robust adaptive control method and a delay-free gradient-based desired compensation adaptation law (DCAL) are utilized to compensate for unknown time-delays, linearly parameterizable uncertainties, and additive bounded disturbances for a general nonlinear system.
(via Semantic Scholar)
citeseerx.ist.psu.edu (repository)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: ORCID
Added: August 12, 2021
2012 conference paper
RISE-based control of an uncertain nonlinear system with time-varying state delays
Proceedings of the IEEE Conference on Decision and Control, 3502–3507.
Contributors: N. Fischer*, R. Kamalapurkar *, N. Sharma* & W. Dixon *
TL;DR:
A neural network is augmented with a robust integral of the sign of the error control structure to achieve semi-global asymptotic tracking in the presence of unknown, arbitrarily large, time-varying delays, not linear-in-the-parameters uncertainty and additive bounded disturbances.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: ORCID
Added: August 12, 2021
2012 journal article
Gait planning and double support phase model for functional electrical stimulation-based walking.
Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference, 2012, 1904–1907. http://www.scopus.com/inward/record.url?eid=2-s2.0-84880821464&partnerID=MN8TOARS
Contributors: N. Sharma & R. Stein
Source: ORCID
Added: August 12, 2021
2012 conference paper
Gait planning and double support phase model for functional electrical stimulation-based walking
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS, 1904–1907.
Contributors: N. Sharma* & R. Stein*
MeSH headings : Electric Stimulation; Gait / physiology; Humans; Leg / physiology; Models, Theoretical; Thigh / physiology; Torque; Walking / physiology
TL;DR:
Lower limb segment angle trajectories are computed from simple mathematical models developed to represent functional electrical stimulation (FES) and a novel brace based walking to design walking trajectories that minimize muscle activations and arm reaction forces generated from the walker.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(OpenAlex)
Source: ORCID
Added: August 12, 2021
2012 journal article
Closed-loop neural network-based NMES control for human limb tracking
IEEE Transactions on Control Systems Technology, 20(3), 712–725.
Contributors: N. Sharma* , C. Gregory*, M. Johnson * & W. Dixon *
author keywords: Asymptotic stability; closed-loop control of functional electrical stimulation (FES); neural networks (NNs); neuromuscular electrical stimulation (NMES); non-isometric contractions; nonlinear control; robust integral of the sign of the error (RISE)-based feedback
TL;DR:
Efforts in this paper focus on the use of a NN feedforward controller that is augmented with a continuous robust feedback term to yield an asymptotic result (in lieu of typical uniformly ultimately bounded stability).
(via Semantic Scholar)
Source: ORCID
Added: August 12, 2021
2012 conference paper
A predictor-based compensation for electromechanical delay during neuromuscular electrical stimulation-II
Proceedings of the American Control Conference, 5604–5609. http://www.scopus.com/inward/record.url?eid=2-s2.0-84869406024&partnerID=MN8TOARS
Contributors: N. Sharma
Source: ORCID
Added: August 12, 2021
2012 chapter
Current opinion in tissue engineering microscopy techniques
In Current Opinion in Tissue Engineering Microscopy Techniques: Vol. 5. Current microscopy contributions to advances in science and technology. Formatex Research Center.
Source: NC State University Libraries
Added: July 30, 2021
2012 journal article
Synthesis of S-doped graphene by liquid precursor
Nanotechnology, 23(27), 275605.
MeSH headings : Crystallization / methods; Electric Conductivity; Graphite / chemistry; Hexanes / chemistry; Materials Testing; Nanostructures / chemistry; Nanostructures / ultrastructure; Particle Size; Semiconductors; Solutions; Surface Properties
TL;DR:
This work demonstrates the growth of large-area sulfur (S)-doped graphene sheets on copper substrate via the chemical vapor deposition technique by using liquid organics (hexane in the presence of S) as the precursor, and found that S could be doped into graphene's lattice and mainly formed linear nanodomains.
(via Semantic Scholar)
Source: Crossref
Added: December 21, 2020
2012 journal article
Paintable Battery
Scientific Reports, 2(1).
TL;DR:
This work establishes a paradigm change in battery assembly by fabricating rechargeable Li-ion batteries solely by multi-step spray painting of its components on a variety of materials such as metals, glass, glazed ceramics and flexible polymer substrates.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: Crossref
Added: December 21, 2020
2012 journal article
Nitrogen-Doped Graphene-Rich Catalysts Derived from Heteroatom Polymers for Oxygen Reduction in Nonaqueous Lithium–O2 Battery Cathodes
ACS Nano, 6(11), 9764–9776.
author keywords: graphene; nitrogen doping; heteroatom polymer; non-precious-metal catalysts; oxygen reduction; Li-O-2 battery
MeSH headings : Catalysis; Electric Power Supplies; Electrodes; Equipment Design; Equipment Failure Analysis; Graphite / chemistry; Lithium / chemistry; Nitrogen / chemistry; Oxidation-Reduction; Oxygen / chemistry; Polymers / chemistry; Water / chemistry
TL;DR:
This new route for the preparation of a nitrogen-doped graphene nanocomposite with carbon nanotube offers synthetic control of morphology and nitrogen functionality and shows promise for applications in nonaqueous oxygen reduction electrocatalysis for Li-O(2) battery cathodes.
(via Semantic Scholar)
Source: Crossref
Added: December 21, 2020
2012 journal article
Artificially Stacked Atomic Layers: Toward New van der Waals Solids
Nano Letters, 12(7), 3518–3525.
author keywords: van der Waal solids; hexagonal boron nitride (h-BN): graphene; exfoliation; artificial stacking: misfit layer; ab-initio; dipole; exciton
TL;DR:
The combined approach could be used to create artificial materials, made predominantly from inter planar van der Waals stacking of robust bond saturated atomic layers of different solids with vastly different properties.
(via Semantic Scholar)
Source: Crossref
Added: December 21, 2020
2012 journal article
Graphene Quantum Dots Derived from Carbon Fibers
Nano Letters, 12(2), 844–849.
author keywords: Graphene quantum dots; carbon fibers; zigzag edge; luminescence; imaging
MeSH headings : Antineoplastic Agents / chemistry; Antineoplastic Agents / pharmacology; Carbon / chemistry; Carbon / pharmacology; Carbon Fiber; Cell Line, Tumor; Cell Survival / drug effects; Dose-Response Relationship, Drug; Drug Screening Assays, Antitumor; Fluorescence; Graphite / chemistry; Graphite / pharmacology; Humans; Particle Size; Quantum Dots; Solubility; Structure-Activity Relationship; Surface Properties
TL;DR:
It is reported that during the acid treatment and chemical exfoliation of traditional pitch-based carbon fibers, that are both cheap and commercially available, the stacked graphitic submicrometer domains of the fibers are easily broken down, leading to the creation of GQDs with different size distribution in scalable amounts.
(via Semantic Scholar)
Source: Crossref
Added: December 21, 2020
2012 journal article
A simple method to synthesize continuous large area nitrogen-doped graphene
Carbon, 50(12), 4476–4482.
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(OpenAlex)
Source: Crossref
Added: December 21, 2020
2012 journal article
Measuring True Young's Modulus of a Cantilevered Nanowire: Effect of Clamping on Resonance Frequency
Small, 8(16), 2571–2576.
TL;DR:
This work exemplifies the importance of considering the effect of clamping in measurements of Young's modulus using the resonance method, and demonstrates that the true Young'smodulus can be measured if the critical clamp size is reached.
(via Semantic Scholar)
Source: Crossref
Added: November 15, 2020
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