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.
Results
Showing 1 to 17 of 17 for “"Sensitivity Functions"”.
-
Model realization using sensitivity functions
… linear, time invariant model realization using sensitivity functions are presented. These concepts involve approaching the device modeling problem from an error gradient minimization viewpoint. This leads to the attainment of a minimal index of performance function (IP) and, consequently, …
-
Dynamic Sensitivity Functions and the Stability of Power Systems With FACTS Controllers
… stability of a power system using dynamic sensitivity functions. This method has an advantage over previous methods in that there are no limits on the model complexity. In particular, the differential-algebraic models are handled very easily. Contingencies can be ranked according to their …
-
FEASIBILITY OF USING EXPERIMENTAL LOAD MEASUREMENTS ON A CYLINDER TO PERFORM PHASE-SENSITIVITY ANALYSIS IN THREE-DIMENSIONAL FLOWS
… to measure phase offset jumps and generate phase-sensitivity functions. Experimental data was collected using a recirculating water tunnel, custom translating test fixture, and load cell at the Naval Postgraduate School. Analysis of this data utilizes custom written MATLAB scripts to discern phase …
-
Temporal Characteristics of Zebrafish Cone Types and Their Role in Separate Visual Processing
… requirement of vertebrate vision. The spectral sensitivity functions (relative sensitivity to different wavelengths of light) of the separate mechanisms were determined in zebrafish using heterochromatic flicker photometry (HFP). The spectral sensitivity function of the luminance channel was …
-
Spectral Sensitivity of the Goldfish ERG and Optic Tectum Before and After Optic Nerve Damage
… to various wavelengths of light. Spectral sensitivity functions were derived from both the ON- and OFF-components at both visual levels. By examining the spectral sensitivity functions of these responses, it was possible to determine if there were differences in shape and absolute …
-
Determination of Chromatic and Luminance Channels in the Zebrafish Visual System Using an Increment Threshold Technique
… From the ERG b-wave responses, a spectral sensitivity function was derived under low and high levels of white background. By examining spectral sensitivity functions under these two levels of white background adaptation, it was possible to determine if two functional channels exist for …
-
Limit Cycles and Dynamics of Rumor Models
… as the best description of the data. We discuss sensitivity analysis results and traditional sensitivity functions.</p>
-
Analysis of Zebrafish Optic Tectum Visual Processing Before and After Optic Nerve Crush
… to previous electroretinogram (ERG) spectral sensitivity data (Bilotta & Harrison, 1999). The second purpose of this study was to examine neural regeneration in the adult zebrafish at various times post-crush and to compare visual processing of these subjects to the normal subjects. The optic …
-
Advanced control of MEMS probing devices
… where the bandwidths from the closed-loop sensitivity and complementary-sensitivity functions respectively are 68 Hz and 74 Hz. A significant improvement in reliability and repeatability (robustness to uncertainties) as well as noise attenuation is also demonstrated through this design.
-
Multichannel Methods for Restoration in Computed Imaging
… approach for estimating receiver coil sensitivity functions used in PMRI reconstruction. Our approach does not rely on sum-of-squares assumptions used in previous PMRI techniques, thus avoiding potential problems such as poor image contrast and aliasing artifacts.
-
Parameter Identification and the Design of Experiments for Continuous Non-Linear Dynamical Systems
Mathematical models are useful for simulation, design, analysis, control, and optimization of complex systems. One important step necessary to create an effective model is designing an experiment from which the unknown model parameter can be accurately identified and then verified. The strategy …
-
Structural Conditions for Global Existence in Some Chemotaxis Systems with Different Logistics
… analyzing linear and nonlinear production laws, sensitivity functions, and threshold values of parameters, the thesis demonstrates how repulsive signaling can counteract destabilizing aggregation effects. Special attention is given to nonlinear diffusion and chemotactic sensitivities, as well as …
-
Aspects of hens’ visual behaviour
… of four hens in Experiment 4. Contrast sensitivity functions were measured under two different viewing conditions. These two functions both spanned a range of low spatial frequencies, that is, showed that the hens had low visual acuity, and also differed in the ranges of spatial …
-
Scene-Dependency of Spatial Image Quality Metrics
… They cascade both measures with contrast sensitivity functions that describe human visual sensitivity with respect to spatial frequency. The most recent metrics designed for adaptive systems use MTFs measured using the dead leaves test chart that is more representative of natural scene …
-
Compositional analysis of networked cyber-physical systems: safety and privacy
… In each formalism, we define a notion of sensitivity that captures the change in trajectories as a function of the change in the parameters. We develop approaches for approximating these sensitivity functions, which in turn are used for analysis of invariance and privacy. For proving …
-
Nonlinear finite element analysis of reinforced concrete structures subjected to blast loading
… Based on Kupfer's results, four different functions are developed for the representation of these surfaces in the principal stress space. In the pre-peak range, a history and rate dependent hardening rule is developed to control the expansion of the loading surfaces with the increase of …