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Works (56)
Updated: April 5th, 2024 04:58
2023 journal article
Blade element momentum theory for a skewed coaxial turbine
OCEAN ENGINEERING, 269.
author keywords: Skew; Hydrokinetic energy; Coaxial turbines; Counter-rotating turbines; Blade element momentum theory
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science; OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: January 4, 2023
2022 article
Analytical wake model for coaxial dual-rotor turbines
2022 OCEANS HAMPTON ROADS.
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: March 13, 2023
2022 journal article
Autonomous Closed-Loop Experimental Characterization and Dynamic Model Validation of a Scaled Underwater Kite
JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME, 144(7).
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: June 6, 2022
2022 article
Characterization of the Steady-State Operating Conditions of Tethered Coaxial Turbines
2022 OCEANS HAMPTON ROADS.
author keywords: Coaxial turbine; hydrokinetic energy; blade-element momentum; skew; nonuniform inflow; tethered energy devices
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: March 13, 2023
2022 article
Closed-Loop-Flight-Based Combined Geometric and Structural Wing Design Optimization Framework for a Marine Hydrokinetic Energy Kite
2022 OCEANS HAMPTON ROADS.
author keywords: ocean current energy; marine hydrokinetic kite; combined geometric and structural optimization; sensitivity analysis; closed-loop-flight simulations; taper ratio; wing twist; dihedral angle
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Source: Web Of Science
Added: March 13, 2023
2022 article
Demonstration of a Towed Coaxial Turbine Subscale Prototype for Hydrokinetic Energy Harvesting in Skew
2022 OCEANS HAMPTON ROADS.
author keywords: Ocean energy; Dual rotor; Coaxial turbine; Hydrokinetic energy; Blade-element momentum; Skew; Tethered energy devices
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: March 13, 2023
2022 journal article
Finite element study of the impact of pedicle screw density on the biomechanical response of a Lenke 1AN scoliotic curve
JOURNAL OF ORTHOPAEDICS, 32, 92–97.
author keywords: Finite element analysis; Scoliosis; Pedicle screw; Micromotion
TL;DR:
It is suggested that increasing the screw density of posterior constructs used to treat a Lenke 1AN scoliotic deformity may improve the de-rotation correction with better postural restoration, reducing the risk of future complications including pseudarthrosis.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: July 5, 2022
2022 article
Increased Energy Conversion with a Horizontal Axis Turbine in Translation
2022 OCEANS HAMPTON ROADS.
author keywords: marine hydrokinetic energy; translating turbine; momentum theory; renewable energy
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science; OpenAlex)
Source: Web Of Science
Added: March 13, 2023
2022 journal article
Pareto Optimal and Dual-Objective Geometric and Structural Design of an Underwater Kite for Closed-Loop Flight Performance
JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME, 145(1).
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Source: Web Of Science
Added: January 3, 2023
2021 journal article
Aerodynamic Tethered Sails for Scientific Balloon Trajectory Control: Small-Scale Experimental Demonstration
JOURNAL OF AIRCRAFT, 58(5), 1010–1021.
author keywords: Rudder; Control Systems; Aerodynamic Coefficients; High Altitude Balloon; Ground Station; Damping Coefficient; Earth; Aerodynamic Angle; Newton's Second Law; Young's Modulus
TL;DR:
High-altitude scientific balloons are often prohibited from flying due to the risk associated with flying over populated areas, but one solution to this problem is the use of a trajectory control system.
(via Semantic Scholar)
Source: Web Of Science
Added: February 28, 2022
2021 journal article
Modeling, simulation, and equilibrium analysis of tethered coaxial dual-rotor ocean current turbines
ENERGY CONVERSION AND MANAGEMENT, 243.
author keywords: Ocean energy; Hydrokinetic energy; Coaxial turbines; Tethered turbine dynamics; Inclined axis turbine
TL;DR:
A computational model of a dual-rotor coaxial turbine is presented, and the model is employed to explore the equilibrium behavior of the turbine with variations in parameters and may be used to inform application-specific coaxial turbines design and to develop additional targeted empirical and simulation studies.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 30, 2021
2020 journal article
Development and Validation of a Computationally Efficient Finite Element Model of the Human Lumbar Spine: Application to Disc Degeneration
INTERNATIONAL JOURNAL OF SPINE SURGERY, 14(4), 502–510.
author keywords: finite element method; lumbar spine; validation; disc degeneration; efficient
TL;DR:
The FEM presented in this article produces a biomechanical response comparable to widely accepted, complex, CT scan–based models and in vitro studies while requiring much shorter computation times, which makes the model ideal for conducting parametric studies of spinal pathologies and spinal correction techniques.
(via Semantic Scholar)
open access via www.ijssurgery.com (publisher PDF)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: September 21, 2020
2020 journal article
Mathematical modeling and parametric study of a planar Tumbleweed rover demonstrator
ACTA ASTRONAUTICA, 177, 48–57.
author keywords: Tumbleweed; Box-kite; Spherical rover
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
Source: Web Of Science
Added: March 8, 2021
2020 journal article
Modeling and experimental investigation of the dynamics of a spherical Transforming Roving Rolling Explorer (TRREx) prototype
ACTA ASTRONAUTICA, 181, 92–111.
author keywords: Mars; Rover; Spherical; Transforming; Dynamics; Controls; Modeling; Prototype
TL;DR:
The performance of the physical prototype of the TRREx has been compared to simulation results and qualitative agreement between the experimental and simulated results indicate that the mathematical model created for the vehicle’s rolling mode dynamics captures the essential behavior of the vehicle.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: July 26, 2021
2019 journal article
Aerodynamic Sails for Passive Guidance of High-Altitude Balloons: Static-Stability and Equilibrium Performance
JOURNAL OF AIRCRAFT, 56(5), 1849–1857.
TL;DR:
This work presents a trajectory control system capable of passively guiding a high-altitude balloo guided by a computer model of balloon trajectory control.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: October 28, 2019
2019 journal article
Dual-Actuator Disc Theory for Turbines in Yaw
AIAA JOURNAL, 57(5), 2204–2208.
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: October 21, 2019
2019 journal article
Modeling and dynamic analysis of a mobile underwater turbine system for harvesting Marine Hydrokinetic Energy
Ocean Engineering, 187, 106069.
author keywords: Relocatable energy harvester; Autonomous underwater vehicle; Renewable energy; Hydrokinetic energy; Ocean current energy; Tether modeling
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Source: Web Of Science
Added: October 14, 2019
2018 journal article
Modelling and performance analysis of a tether and sail-based trajectory control system for extra-terrestrial scientific balloon missions
ACTA ASTRONAUTICA, 160, 527–537.
author keywords: Balloon; Sail; Venus; Titan; Latitude; Control
TL;DR:
The benefits of being able to generate guiding velocities via a sail system by viewing the trajectories taken by planetary balloon systems employing such a system are demonstrated.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
Source: Web Of Science
Added: July 15, 2019
2016 journal article
Modeling, construction and experimental validation of actuated rolling dynamics of the cylindrical Transforming Roving-Rolling Explorer (TRREx)
Acta Astronautica, 132, 43–53.
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Crossref
Added: February 24, 2020
2016 article
Tether enabled spacecraft systems for ultra long wavelength radio astronomy
Gemmer, T., Yoder, C. D., Reedy, J., & Mazzoleni, A. P. (2017, September). ACTA ASTRONAUTICA, Vol. 138, pp. 530–535.
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2015 journal article
Dynamic modeling and mobility analysis of the transforming roving-rolling explorer (TRREx) as it Traverses Rugged Martian Terrain
ACTA ASTRONAUTICA, 120, 103–120.
author keywords: Mars; Rover; Transforming; Dynamics; Terrain; Modeling
TL;DR:
This work highlights the contribution of the spherical rolling mode to the enhanced mobility of the TRREx rover and how it could enable challenging surface exploration missions in the future.
(via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018
2015 journal article
Nonlinear dynamic analysis of a three-body tethered satellite system with deployment/retrieval
NONLINEAR DYNAMICS, 82(3), 1127–1144.
author keywords: Three-body tethered satellite system; Deployment and retrieval; Nonlinear dynamic behavior; Libration angle
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2015 journal article
Survey of shock wave structures of smooth particle granular flows
Physical Review E, 92(6), 062209.
TL;DR:
Both wedges and disks have been used in the aerospace community as prototypical impediments to flowing air in order to investigate the fundamentally different shock structures emanating from sharp and blunt bodies, and these results are presented to increase the understanding of the fundamental behavior of supersonic granular flow.
(via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018
2014 journal article
Analysis, Fabrication, and Testing of a Liquid Piston Compressor Prototype for an Ocean Compressed Air Energy Storage (OCAES) System
Marine Technology Society Journal, 48(6), 86–97.
author keywords: ocean-based energy; compressed air; energy storage; liquid piston; isothermal
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2014 journal article
Modeling tether–ballast asteroid diversion systems, including tether mass and elasticity
Acta Astronautica, 103, 282–306.
author keywords: Asteroid; Tether; Mitigation; Diversion; Near earth object (NEO); Potentially hazardous asteroid (PHA)
Sources: Web Of Science, Crossref
Added: August 6, 2018
2014 journal article
Performance Analysis and Technical Feasibility Assessment of a Transforming Roving-Rolling Explorer Rover for Mars Exploration
JOURNAL OF MECHANICAL DESIGN, 136(7).
Source: Web Of Science
Added: August 6, 2018
2013 conference paper
A concept selection framework for early sorting of reconfigurable system designs
Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, 2013, vol 3B.
TL;DR:
A seven-step framework for sorting proposed concepts of system changes / reconfigurations is presented that seeks to characterize the overall ramifications on system architecture.
(via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018
2013 journal article
Aerodynamic effects on the accuracy of an end-over-end kick of an American football
Sports Engineering, 16(2), 99–113.
Contributors: W. Lee n, n & M. Zikry n
Sources: Crossref, Web Of Science, NC State University Libraries, ORCID
Added: February 24, 2020
2013 journal article
Conceptual Design of Ocean Compressed Air Energy Storage System
MARINE TECHNOLOGY SOCIETY JOURNAL, 47(2), 70–81.
author keywords: energy storage; CAES; compressed air energy storage; adiabatic CAES
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2013 journal article
Dynamic analysis of a tethered satellite system with a moving mass
NONLINEAR DYNAMICS, 75(1-2), 267–281.
author keywords: Nonlinear dynamics; Tethered satellites; Dumbbell model; Moving mass; Libration angle
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2013 journal article
Dynamics of a dissipative, inelastic gravitational billiard
PHYSICAL REVIEW E, 87(3).
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2012 conference paper
Analysis and optimization of a quasi-isothermal compression and expansion cycle for Ocean Compressed Air Energy Storage (OCAES)
2012 Oceans.
Source: NC State University Libraries
Added: August 6, 2018
2012 conference paper
Conceptual design of ocean compressed air energy storage system
2012 Oceans.
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018
2012 journal article
Terrain modeling and simulation of a tumbleweed rover traversing martian rock fields
Journal of Spacecraft and Rockets, 49(2), 401–412.
Source: NC State University Libraries
Added: August 6, 2018
2011 journal article
Dynamic modeling and simulation of a real world billiard
PHYSICS LETTERS A, 375(42), 3682–3686.
author keywords: Billiard; Gravity; Chaos; Dissipation; Rotation; Simulation
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2010 journal article
Dynamic Modeling of a Wind-Driven Tumbleweed Rover Including Atmospheric Effects
JOURNAL OF SPACECRAFT AND ROCKETS, 47(3), 493–502.
Source: Web Of Science
Added: August 6, 2018
2009 journal article
Asteroid Diversion Using a Long Tether and Ballast
JOURNAL OF SPACECRAFT AND ROCKETS, 46(3), 645–661.
Source: Web Of Science
Added: August 6, 2018
2009 journal article
Near-Earth object threat mitigation using a tethered ballast mass
Journal of Aerospace Engineering, 22(4), 460–465.
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: NC State University Libraries
Added: August 6, 2018
2009 journal article
Parametric study of the diversion of a near Earth object on an Earth intersecting trajectory
ACTA ASTRONAUTICA, 65(11-12), 1698–1705.
author keywords: Tethers; Potentially hazardous asteroids; Near Earth objects; Mitigation
Source: Web Of Science
Added: August 6, 2018
2008 journal article
Design, analysis, and testing of Mars Tumbleweed rover concepts
JOURNAL OF SPACECRAFT AND ROCKETS, 45(2), 370–382.
TL;DR:
This paper presents wind-tunnel data indicating that a box-kite configuration represents a promising tumbleweed rover design, it is shown that a working box- kite–type tumbleweed can be constructed, and center of mass variation shows promise as the basis of a tumbleweed Rover navigation system.
(via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018
2008 journal article
Dynamic stability of a semi-circular pipe conveying harmonically oscillating fluid
JOURNAL OF SOUND AND VIBRATION, 315(1-2), 100–117.
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2008 journal article
Parametric study of spherical rovers crossing a valley
JOURNAL OF GUIDANCE CONTROL AND DYNAMICS, 31(3), 775–779.
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2007 journal article
Analysis and design for no-spin tethered satellite retrieval
JOURNAL OF GUIDANCE CONTROL AND DYNAMICS, 30(5), 1516–1519.
TL;DR:
Analysis of the equations of motion will reveal that under an exponential length control law, there exist initial tethered satellite states for which the tethered Satellite system can be retrieved and remain stationary with respect to the orbital reference frame during the course of the retrieval maneuver.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2007 journal article
Nullcline analysis as an analytical tethered satellite mission design tool
JOURNAL OF GUIDANCE CONTROL AND DYNAMICS, 30(3), 741–752.
TL;DR:
An analytic method of qualitatively describing the possible dynamics of a tethered satellite system based on the study of the sets of states for which at least one of the nondimensional time derivatives of the state variables is zero is zero.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2007 journal article
Parametric study of deployment of tethered satellite systems
JOURNAL OF SPACECRAFT AND ROCKETS, 44(2), 412–424.
TL;DR:
This paper describes a 3-D model of a tethered satellite system undergoing deployment that can be used by mission designers to predict the final deployed length under given operating conditions.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2005 book
Spaceflight mechanics 2004 : proceedings of the 14th AAS/AIAA Space flight mechanics meeting held 8-12 February 2004, Maui, Hawaii
Presented at the 14th AAS/AIAA Space Flight Mechanics Meeting, Maui, Hawai'i.
Event: 14th AAS/AIAA Space Flight Mechanics Meeting at Maui, Hawai'i on February 8-12, 2004
Source: NC State University Libraries
Added: August 16, 2021
2001 journal article
Nonlinear Spacecraft Dynamics with a Flexible Appendage, Damping, and Moving Internal Submasses
Journal of Guidance, Control, and Dynamics, 24(3), 605–615.
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: Crossref
Added: January 3, 2021
1998 journal article
Analytical Criterion for Chaotic Dynamics in Flexible Satellites with Nonlinear Controller Damping
Journal of Guidance, Control, and Dynamics, 21(4), 558–565.
TL;DR:
This work studies the attitude dynamics of a single body spacecraft that is perturbed by the motion of a small flexible appendage constrained to undergo only torsional vibration and obtains an analytical test for chaos in terms of satellite parameters by Melnikov's method.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: Crossref
Added: August 28, 2020
1996 journal article
Double averaging approach to the study of spinup dynamics of flexible satellites
Journal of Guidance, Control, and Dynamics, 19(1), 54–59.
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: Crossref
Added: August 28, 2020
1995 journal article
Closest bifurcation analysis and robust stability design of flexible satellites
Journal of Guidance, Control, and Dynamics, 18(2), 333–339.
Source: Crossref
Added: August 28, 2020
1995 journal article
Full Field Stability Analysis of Guy-Wired Satellites
Journal of the Astronautical Sciences, 43(1), 47–57.
Source: NC State University Libraries
Added: January 3, 2021
1995 journal article
Instability tests, Lyapunov's direct method, and exact stability boundaries for flexible satellites
Journal of Guidance, Control, and Dynamics, 18(3), 426–432.
Source: Crossref
Added: January 3, 2021
1995 journal article
The Product of Chord Lengths of a Circle
Mathematics Magazine, 68(1), 59.
Source: Crossref
Added: August 28, 2020
1994 journal article
Comparative stability study illustrating advantages of guy-wire constraints for flexible satellites
Journal of Guidance, Control, and Dynamics, 17(5), 1139–1141.
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: Crossref
Added: August 28, 2020
1991 journal article
Gravity gradient stability of satellites with guy-wire constrained appendages
Journal of Guidance, Control, and Dynamics, 14(4), 855–857.
Source: Crossref
Added: August 28, 2020
1986 journal article
Conductivity Values of Tissue Culture Medium from 20°C to 40°C
Bioelectromagnetics : Journal of the Bioelectromagnetic Society, 7(1), 95–99.
MeSH headings : Culture Media; Electric Conductivity; Temperature
TL;DR:
The purpose of this paper is to provide equations relating conductivity and temperature (in the range 20 degrees C-40 degrees C) for five solutions: 0.9% saline, MEM (Minimum Essential Media), horse serum, MEM with 1%horse serum, and MEM with 10% horse serum.
(via Semantic Scholar)
Source: Web Of Science
Added: January 3, 2021
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