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 20 of 50 for “"Dynamical behavior"”.
-
Dynamical behavior of graphene models
… that twodimensional (2D) crystals were thermodynamically unstable. Andre Geim and Konstantin Novoselov managed to obtain graphene using a rather surprising technique called the scotch tape method. The scotch tape method involves carefully peeling off layer after layer in graphite which is a …
-
The Dynamical Behavior of Confined Aqueous Systems
The nanorheological behavior of artificial tear films (polyvinyl alcohol aqueous solutions) and synovial fluids was of scientific importance for future medical ramifications. The effects of chemical additives, ionic strength and adjoining surface chemistry on the static and dynamic interactions of …
-
Analytical and numerical study of the unstable limit cycles of walking droplets
… trajectories, but to exhibit a range of rich dynamical behavior, including tunneling, diffraction, and orbital quantization. Current theoretical models for the walking droplet system can be difficult to analyze. Here, by reducing the dimension of the bath, a simpler model has been derived and …
-
Análise dinâmica de placas sandwich comprimidas simplesmente apoiadas
… of this dissertation is the analysis of the dynamical behavior of sandwich plates. We have considered only simply supported rectangular plates under a compressive uniform load acting in the middle plane. The dynamical instability was also analyzed. The equations of motion were obtained …
-
NONLINEAR DYNAMICS OF CABLE GALLOPING VIA A TWO-DEGREE-OF-FREEDOM NONLINEAR OSCILLATOR
… periodic motions are illustrated. The rich dynamical behavior in such a nonlinear cable structure are discovered, and this investigation may help one better understand the galloping phenomena for any elastic structures.
-
Uniform exponential growth of non-positively curved groups
… underlying space with local combinatorial and dynamical behavior of the action. In the 1980s, Gromov publish a sequence of seminal works introducing several metric notions of non-positive curvature in group theory where he asked which finitely generated groups have uniform exponential growth. …
-
Synchronization in Coupled Opto-thermal Silicon MEMS Limit Cycle Oscillators
… to an external drive. In this work, we chart the behavior of silicon MEMS oscillators that are nominally 40 µm long and 205 nm thick, mechanically coupled, and opto-thermally driven by a continuous-wave helium-neon laser. Experimentally, we demonstrate synchronization in pairs of coupled …
-
Nuclear magnetic resonance investigations of structural phase transitions in silicon dioxide cristobalite and tridymite and related phases
… parameters through SPT's. Moreover, the dynamical behavior of high temperature phases in the NMR frequency range ($\sim$1-500 MHz) can sometimes be uniquely elucidated by relaxation rate measurements and spectral simulation. The work presented here includes in situ high temperature …
-
Fabrication, dynamics and self-assembly of anisotropic colloidal particles
… this work, we study the fabrication and behavior of polymeric microparticles that are chemically- and shape-anisotropic. Single-component, rod-shaped particles are fabricated by stop-flow lithography (SFL) using either hydrophobic and hydrophilic materials. SFL is also used to …
-
Bifurcation Analysis of a Model of the Frog Egg Cell Cycle
… as currently known. Important clues to the behavior of the model are provided by bifurcation theory, especially characterization of the codimension-1 and -2 bifurcation sets of the differential equations. To illustrate this method, I have been studying a system of 9 ordinary differential …
-
Dynamics of Genome Organization
… contributions further our understanding of the dynamical behavior of chromatin in living cells and provide valuable tools and directions for future research.
-
A Cost-Efficient Digital ESN Architecture on FPGA
… whose processing capabilities rely on the dynamical behavior of recurrent neural networks (RNNs). Its performance metrics outperform traditional RNNs in nonlinear system identification and temporal information processing. In this thesis, we design and implement ESNs through …
-
Control-Theoretic Decision Support for Mitigation of Modeled Software Project Cost Overruns
… theory studies the ability to influence the dynamical behavior of systems to achieve desired behaviors or eliminate undesired behaviors. In this work, the management problem of software project schedule adherence is re-cast as a problem in control theory.</p> <p>Below, a modeling framework is …
-
Towards exact molecular dynamics simulations with invariant machine-learned models
… a few dozen atoms and provide insights into the dynamical behavior of these molecules. Our approach provides the key missing ingredient for achieving spectroscopic accuracy in molecular simulations.
-
Steady flow and stability analysis of a thin film over variable topography
… and the fluid layer triggers a complicated dynamical behavior that favors the formation of eddies inside the bottom undulations and resonant standing waves at the free surface of the flow. Even the small fluctuations of the substrate can significantly affect the shape of the free surface. …
-
Dynamic Aggregation of Grid-tied Inverters
… and accurate modeling tools to study the dynamical behavior of systems with large numbers of inverters. Typical dynamical models for grid-tied inverters are nonlinear and composed of a large number of states; therefore it is impractical to study systems with many inverters when their full …
-
Monolithic integration of semiconductor ring lasers
… for integration. However, most of the mode dynamical behavior as well as the optimum device design are still far from a complete understanding. This thesis reports on the design, technological development and characterization of SRLs emitting at 1.55 um, which are monolithically integrated …
-
Micromagnetic analysis of co-based magnetic nanostructures.
… analysis was employed in order predict the dynamical behavior of a variety of magnetic structures utilized in information storage devices. First, the surprising behavior of homogeneous perpendicular recording media was micromagnetically investigated. It is common to model recording media as …
-
Modulation Of Hydrodynamic Forces On Oscillating Submerged Structures In Viscous Fluids
The study of the dynamical behavior of flexible submerged cantilever-like structures subjected to underwater vibration is of primary importance in a wide range of scientific and engineering fields. In the context of such applications, the performance of submerged devices primarily depends on the …
-
Protein Dynamics and its Correlation to Protein Activity and Stability
… spectroscopy, the binding of MTX influences the dynamical behavior of DHFR. Macromolecular dynamics such as the resilience: lt;kgt; (i.e. structural rigidity) was found to be increased and, inversely, the flexibility decreased upon MTX binding. In addition, as revealed by circular dichroism, this …
Page 1 of 3