Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 129 for “"Simulation Time"”.
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Physics-based character locomotion control with large simulation time steps.
… in addressing these problems, but typically uses simulation time steps much smaller than those suitable for games. This project deals with developing control strategies using larger time steps. After describing some introductory work showing the di culties of implementing a handcrafted controller …
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Methods for increasing model accuracy and simulation time scales of biological processes with molecular dynamics
… to extend the capabilities of molecular dynamics simulations in one way or another. In the first chapter, molecular dynamics simulations and the central role they play in the field of structural biology is introduced to give the reader some background on the common basis of the projects. The …
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Fault simulation for structural testing of analogue integrated circuits
In this thesis the ANTICS analogue fault simulation software is described which provides a statistical approach to fault simulation for accurate analogue IC test evaluation. The traditional figure of fault coverage is replaced by the average probability of fault detection. This is later refined by …
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Innovative Methods for Solving Multicomponent Biogeochemical Groundwater Transport on Supercomputers
… to conventional preconditioners (i.e. faster simulation time and better parallel scalability) for scenarios exhibiting little solute retardation. However, Matrix-Lite preconditioning was required for scenarios with severely retarded reaction fronts. Although this method scaled well, it failed …
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Power Distribution Network Analysis and Optimization in Digital VLSI Circuits
… input-independent algorithms are used to reduce simulation time and obtain an accurate noise upper bound. Additional techniques (namely, sensitivity analysis, constraint graph optimization, and reduced order modeling techniques) are also employed to improve the accuracy with little overhead in …
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Understanding long timescale phenomena in atomic systems from accelerated molecular simulation methods
Conventional molecular dynamics simulations have been proven instrumental to the understanding of material behaviors. However, the temporal constraints of molecular dynamics simulations have limited attempts to capture long timescale dynamics of material systems, such as phase transitions or …
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Predicting the Acoustic Response of the Golf Club & Ball Impact Using Finite Elements and the Boundary Element Method
… still maintaining high quality at the edges. A simulation procedure was also developed to predict the acoustic pressure at a designated point in an acoustic medium of a golf club and ball impact using the BEM and Rayleigh methods in LS-DYNA®. The simulation time and computing power required for …
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Design and evaluation methodology for computer-controlled manufacturing systems
… and future automated manufacturing systems. A simulation model is developed to evaluate operational dynamics of the specified system configuration, analyze HCS component performance characteristics, and evaluate hardware and software in real simulation time. The model also simulates continuous …
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Efficient High Order Ensemble for Fluid Flow
… realizations, reducing computational cost and simulation time. Four algorithms utilize a Generalized Positive Auxiliary Variable (GPAV) approach and are demonstrated to be second-order accurate and unconditionally stable with respect to the system energy through comprehensive stability analyses …
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A hybrid direct-iterative linear solver for chemical process simulation
… equation systems arising in chemical process simulation. The motivation for this work is to enable simulations of large, complex, and realistic models requiring the computing power of high performance machines. The objective is carried out by combining the reliability of direct sparse linear …
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A Comparative Study Between 6 Degree-of-Freedom Trajectory Model and Modified Point Mass Trajectory Model of Spinning Projectiles
… it comes with the drawbacks of long computation time and needing many aerodynamic coefficients which can be hard to obtain. The Modified Point Mass Trajectory Model was introduced as a simplified solution. This work compares them with each other, and with some more conventional methods. A program …
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Development of techniques for rapidly assessing the local air quality impacts of airports
… emissions, runway, and taxiway/terminal data for simulations were obtained from various sources. The RDMS was applied to obtain local-scale PM2.5 concentrations and exposures for the year 2006 for 191 U.S. airports that accounted for 95% of U.S. air passenger traffic. The resulting local-scale …
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On fault coverage and fault simulation for multiple signature analysis BIST schemes
Fault coverage and fault simulation issues related to multiple signature analysis (MSA) built-in self-test (BIST) schemes are treated here. A model to predict the fault coverage is presented. Based on this model, the nature of the fault coverage for MSA is discussed. The fault coverage of MSA is a …
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Development and demonstration of a high-performance Gaussian puff model for nuclear emergency training scenarios in unity game engine
… but the calculations involved can be complex and time- consuming. Increasing computer processing power and advanced coding techniques allow for complex simulations to be performed in real time while maintaining a level of performance suitable for modern interactive applications. A real-time …
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Reactive Sieving With M-Phenylene Ethynylene Foldamers: Effects of Structural Modification on Reactivity
… developed for CHARMM-based molecular dynamics simulations. A total of 14 simulations were performed (500 ps each) and the dihedral angles of the guest alkyl chains were monitored. It was found that many of the dihedral angles could adopt and maintain a gauche conformation during the course of …
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Preserving application reliability on unreliable hardware
… on the remaining error sites (one at a time) is practical, it still requires significant simulation time. Therefore, Relyzer proposes and employs a gang error simulator called GangES as a performance enhancement technique. GangES bundles multiple error (pilot) simulations and …
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Development of a collision table for three dimensional lattice gases
… is used to perform various two-dimensional flow simulations. In order to broaden the scope of the applications in which lattice gases can be used locally, the development of a three-dimensional lattice gas capability is required. The first major task in setting up a three dimensional-lattice gas …
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GENERATING.CAPACITY RELIABILITY INDICES
… the indices of loss of load and energy loss. The times to failure and times to repair are also considered as random variables in this thesis in order to determine the mean values and distributions of selected generating capacity reliability indices using a Monte Carlo Simulation time dependent …
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Computational modeling of extravascular platelet aggregation under flow
… and test the disparity of the fluid and reaction timescales to improve simulation time. These numerical tools provide a framework for future studies in extravascular platelet aggregation and other blood clotting phenomena.
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Circuit and Modeling Solutions for High-Speed Chip-to-Chip Communication
… degraded signals for the purpose of simulation are also presented and used to verify the proposed equalization and filtering topologies. Specifically, a new technique for modeling high-speed jittery clocks in the frequency domain is presented and shown to reduce transient simulation …
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