Search
Now showing items 1-10 of 95
Modeling of a Small-Scale Remote Controllable Helicopter for Simulation and Control Development
(Virginia Tech, 2006-02-22)
The Virginia Polytechnic Institute and State University has recently expanded its unmanned and autonomous systems research to include aerial vehicles. In the summer of 2004, members of the Autonomous Aerial Vehicle Team ...
Model-based Computer Simulation of Froth Flotation
(Virginia Tech, 2011-01-19)
Froth flotation is a separation process by which particles are selectively attached to air bubbles. It is one of the most dynamically complex industrial processes in use today. This complexity has steered research towards ...
Developing Modeling and Simulation Methodology for Virtual Prototype Power Supply System
(Virginia Tech, 1999-03-03)
This dissertation develops a modeling and simulation methodology for design, verification, and testing (DVT) power supply system using a virtual prototype. The virtual prototype is implemented before the hardware prototyping ...
Verification of a Three-Dimensional Resin Film Infusion Proecss Simulation Model
(Virginia Tech, 1998-02-04)
This investigation completed the verification of a three-dimensional resin transfer molding/resin film infusion (RTM/RFI) process simulation model. The model incorporates resin flow through an anisotropic carbon fiber ...
Modeling and Control of a Synchronous Generator With Electronic Load
(Virginia Tech, 1998-01-05)
Design and analysis of a system consisting of a variable-speed synchronous generator that supplies an active dc load (inverter) through a three-phase diode rectifier requires adequate modeling in both time and frequency ...
Variable Bus Voltage Modeling for Series Hybrid Electric Vehicle Simulation
(Virginia Tech, 1997-12-01)
A growing dependence on foreign oil, along with a heightened concern over the environmental impact of personal transportation, had led the U. S. government to investigate and sponsor research into advanced transportation ...
Species survey, monitoring and management of economically important stink bug species in eastern Virginia
(Virginia Tech, 2008-10-23)
Stink bugs are major pests of agricultural crops throughout Virginia and much of the United States. Knowledge of the biology, the species complex, and insecticide susceptibility can improve management. A survey was conducted ...
Characterization of Ferroelectric Films by Spectroscopic Ellipsometry
(Virginia Tech, 2003-07-18)
Process dependent microstructural effects in ferroelectric SrBi2Ta2O9 (SBT) thin films were characterized and distinguished from material dependent optical properties using a systematic multi-layer modeling technique. ...
An Experimental Evaluation of the Experimental Spatial Dynamics Modeling (ESDM) Technique
(Virginia Tech, 1998-04-21)
Relatively new transducers permit the measurement of dynamic response at many structure locations. Included among such transducers is the scanning laser Doppler vibrometer (LDV). A scanning LDV can measure velocity at ...
Tools and Techniques for Evaluating Reliability Trade-offs for Nano-Architectures
(Virginia Tech, 2002-12-02)
It is expected that nano-scale devices and interconnections will introduce unprecedented level of defects in the substrates, and architectural designs need to accommodate the uncertainty inherent at such scales. This ...