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 1437 for “"MACROSCOPIC"”.
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Macroscopic behaviour of Lipschitz random surfaces
… deviations principle for (simultaneously) the macroscopic shape and the microscopic statistics of the surface under consideration. Applications include models induced by submodular potentials, that is, potentials which satisfy the Fortuin-Kasteleyn-Ginibre lattice condition. This answers an …
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Macroscopic Data Structure Analysis and Optimization
… analysis, and transformation of programs with macroscopic techniques, and evaluates the net performance impact of the transformations. Finally, it describes a large class of potential applications for the work in fields such as heap safety and reliability, program understanding, distributed …
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Optical momentum transfer to macroscopic media
… modeling optical momentum transfer to macroscopic media. The Maxwell stress tensor and the distributed Lorentz force are first applied to calculate forces on lossless media and are shown to be in excellent agreement. It is shown that a normally incident plane wave pushes a slab in the …
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Polyurea aerogels: From nanoscopic to macroscopic properties
"The morphology of a material is intrinsically a qualitative property and in order to relate nanomorphology to synthetic conditions, it is necessary to express nano/micro-structure quantitatively. In this context, polyurea aerogels were chosen as a model system with demonstrated potential for rich …
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Macroscopic quantum tunneling in superconducting nanowire devices
Macroscopic quantum tunneling is a process by which a macroscopic object, rather than a single electron, tunnels between two macroscopically distinct quantum states. In this dissertation, we will present the study of macroscopic quantum tunneling of phase-slips in superconducting devices, including …
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Microscopic characterization of macroscopic colloidal gel rheology
… between microscopic particle interactions and macroscopic rheological properties. The state of thermodynamic nonequilibrium and the structural disorder of the network due to kinetic arrest of the attractive particles call for comprehensive investigation of colloidal gel rheology. In this …
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Macroscopic convection in the thin-film processor
The thesis explores the proposal that macroscopic fluid convection in thin-film processors may be adequately represented by simple linear deterministic models. In addition, it examines the suggestion that the models themselves provide a useful tool in the search for a generalizable 'intrinsic' …
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Composition effects on macroscopic solidification segregation of superalloys
This research work investigates primarily the composition effects on solidification macrosegregation, i.e. freckles, in superalloys. First, the freckling mechanism of superalloys is developed using the physical simulation of freckle formation in specially designed model alloys. It is found that …
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Electromagnetic properties and macroscopic characterization of composite materials
… refraction. In this thesis, the microscopic/macroscopic properties, the control of the geometry and functionality, and potential applications of various composites are explored. Numerical and theoretical tools are presented for the purpose of characterizing structured composites. The thesis …
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Macroscopic Coupling Conditions with Partial Blocking for Highway Ramps
We consider the Lighthill-Whitman-Richards traffic model on a network consisting of a highway with an off ramp, connected by a junction. We compare the known coupling conditions for the evolution of traffic at the junction and suggest a novel improvement to the existing conditions. That is, we …
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Data-Fitted Generic Second Order Macroscopic Traffic Flow Models
… model has become a favorable ``second order" macroscopic traffic model, which corrects several shortcomings of the Payne-Whitham (PW) model. The ARZ model possesses a family of flow rate versus density (FD) curves, rather than a single one as in the ``first order" Lighthill-Whitham-Richards …
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Electrical Spraying of Macroscopic Liquid Particles Under Pulsed Conditions
Made available in DSpace on 2014-12-08T22:23:26Z (GMT). No. of bitstreams: 1 6408364.pdf: 3410307 bytes, checksum: a9dc000de410c0734cb6b711bd9d09d5 (MD5) Previous issue date: 1964
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PDE models of front propagation in macroscopic physical systems
Submitted by Jenny Wong-Welch (wongwel2@illinois.edu) on 2011-11-10T23:52:10Z No. of bitstreams: 1 1993_paquette.pdf: 5940635 bytes, checksum: e52b7059425c22fbe1ca5dbc1471e76d (MD5)
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Macroscopic effects of Lagrangian velocity noise in turbulent flow
Submitted by Carolyn Rauber (crauber2@illinois.edu) on 2012-01-23T18:34:34Z No. of bitstreams: 1 1988_shen.pdf: 2598063 bytes, checksum: 89dc9dc901ef7a21c17f76c38b70c573 (MD5)
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Thermal activation and macroscopic quantum phenomena in superconducting devices
… to both thermal activation over the barrier and macroscopic quantum tunneling through the barrier. The measurements were performed for a variety of device parameters, corresponding to different shapes of the potential barrier. We find strong evidence for macroscopic quantum tunneling in both one …
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Some problems on macroscopic quantum phenomena and josephson junctions
… pari is concemed with the experimental test of macroscopic quantum phenomena in systems of Josephson junc-tion(s). In trying to determine in general the parameters of Josephson junction (this determination is essential for the test), we investigate the bottom pan of the ""returnI- V …
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Macroscopic electrostatics and the molecular theory of dielectric polarization
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1970.
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Development of macroscopic nanoporous graphene membranes for gas separation
… areas of graphene. However, scaling up to macroscopic sizes presents significant challenges, including graphene imperfections and control of the selective nanopore size distribution across large areas. The overall objective of this thesis research is to develop macroscopic graphene …
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