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 38 for “"static properties"”.
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The potential of sonic wave propagation in engineering rock classification
… used to provide information on the engineering properties of rocks. The advantages of such techniques include minimal sample preparation, fast site preparation for field tests, reproducible and nondestructive tests, and capability for large scale testing. During this research an extensive review …
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Static and Dynamic Properties of Vertical -Cavity Surface -Emitting Lasers
… optical feedback is studied by measuring the static properties of an oxide VCSEL as a function of fiber position and correlating the data to theoretical results using a vector mode-matching method which includes the fiber in the modelled structure. A novel method for estimating the linewidth …
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Effects of geometry on static and band gap properties of 3D printed metastructures
… multiple functions. Extensive work on effective static properties of different architected materials have shown their ability to push the modulus-density design space, in terms of high effective moduli at low relative density. On the other hand, variations in geometry allow for these materials to …
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Impact of Second Messenger Modulation on Activity-Dependent and Basal Properties of Excitatory Synapses
… and the strength of neuronal activity, synaptic properties that translate neuronal activity into synaptic output profoundly determine the precision of information transfer. Synaptic properties are in turn shaped by changes in network activity to ensure appropriate synaptic output. …
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Entropy functions and rare events in disordered systems by transfer matrix calculations and Monte Carlo sampling
… complex energy landscapes and the connection to static properties.
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Fatigue response of notched graphite--epoxy laminates
… were performed to observe damage development. Static properties and damage initiation were related to an approximate stress analysis. Results show that the mechanical response and the fatigue damage depend strongly on the stacking sequence of laminates. In general, residual strength increased …
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Properties of the Helium-3 a-B Phase Boundary
This thesis deals with various properties of the ('3)He A-B phase boundary. First a review of some static properties, the surface energy and Kapitza resistance, is given. Then the symmetry of the interface is discussed. It is pointed out that, due to the presence of the condensate, many symmetries …
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Properties of the 3He A-B phase boundary
This thesis deals with various properties of the 3He A-8 phase boundary. First a review of some static properties, the surface energy and Kapitza resistance, is given. Then the symmetry of the interface is discussed. It is pointed out that, due to the presence of the condensate, many symmetries are …
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Physics of ultracold spin mixtures in low and stable magnetic field environment
… atomic mixture, the investigation of its static properties and the study of dynamical properties such as the local decay of the metastable state into the true ground state, resulting in the probabilistic nucleation of bubbles. In particular, this thesis focuses on the temperature …
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Studies of Two-Nucleon Interactions and Few-Body Electromagnetic Structure in Chiral Effective Field Theory
… presented in this thesis. The calculation of the static properties and elastic form factors of the deuteron and trinucleons (<sup>3</sup>He and <sup>3</sup>H) is implemented in momentum-space, by utilizing nuclear wave functions obtained either from chiral or realistic potentials, in combination …
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Influence of geometric parameters on 3D periodic lattice effective properties
… to combine the effect of bulk material properties and geometric periodicity. They offer enhanced mechanical and dynamic properties per unit mass, and the ability to engineer the material response by optimizing the unit cell. Characterizing lattice properties through experiments can be a …
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Quantum dynamical study of Si(100) surface-mounted, STM-driven switches at the atomic and molecular scale
… switching in the above-threshold regime. Static properties of the adsorbate, e.g., potentials and dipole function and potentials, are obtained from quantum chemistry and used within the established quantum dynamical models.
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Electroweak Structure of Three-and Four-Body Nuclei
… factor of <sup>3</sup>H, charge form factors and static properties of both <sup>3</sup>H and <sup>3</sup>He, are in satisfactory agreement with the experimental data. However, the position of the zero in the magnetic form factor of <sup>3</sup>He is underpredicted by theory. The calculated nuclear …
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Sum rules and constraints on passive systems - a general approach and applications to electromagnetic scattering
… the dynamical behaviour of a system to its static and/or high-frequency properties. This is beneficial, since static properties are in general easier to determine. The physical limitations indicate what can, and what can not, be expected from certain passive systems. At the core of the …
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Static and dynamic properties of the pion from continuum modelling of strong QCD
… truncation scheme, we systematically calculate static properties of the pion and kaon. After combining the rainbow-ladder truncation for the SDE-BSE system with the impulse approximation for the pion-photon vertex, we present numerical results for the pion form factor using the Ball-Chiu and …
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Curiosities of the Electron Dynamics of Spin-Crossover Solids (Moessbauer)
… have been prepared and their spin-crossover properties in the solid state have been characterized using variable-temperature (4.2-313 K) magnetic susceptibility, EPR spectroscopy, and ('57)Fe Mossbauer spectroscopy. For the unperturbed complex "FeP" the low-spin (LS) (DBLHARR) high-spin (HS) …
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Numerical Analysis of FFP Impact on Saturated Loose Sand
… quartz sand. The numerical results using quasi-static properties resulted in a reaction of the sand softer than the actual calibration chamber test. This implied the necessity of considering HSR effects. After performing parametric analyses, it was concluded that dilation plays an important role …
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Evaluating the Traffic Speed Deflectometer (TSD) for network-level screening of pavements in Michigan
… plate theory to determine the equivalent quasi-static falling weight deflectometer (FWD) load from TSD dual tires loading. Such approach of using equivalent quasi-static FWD load is consistent with the AASHTO procedures for determining the Portland cement concrete (PCC) elastic modulus and …
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Dynamical correlations of S=1/2 quantum spin chains
… The XXZ model has been used to study the unusual properties of anisotropic spin chains in an external magnetic field. The zero temperature phase diagram for this model exhibits a critical or quasi-long-range-ordered phase which is a realization of a Luttinger liquid. While many static properties …
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Landau Model for Films and Interfaces of Superfluid Helium-4 at T = 0k
… phenomenologically by fitting measured bulk properties of the homogeneous superfluid. The theory then predicts in a consistent way both static properties (density profile, interface/surface tension) and excitations (ripplons, phonons, and their associated wavefunctions). The simplicity of the …
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