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 123 for “"Non-Homogeneous"”.
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Digital graft : towards a non-homogeneous materiality
(cont.) and form development. Through this approach, space can be perceived not as distributed geometries, but rather as a composite graft responding locally to flows of programmatic and environmental parameters.
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Periodicity and ruin probabilities for compound non-homogeneous poisson processes
Compound non-homogenous Poisson processes with periodic claim intensity rates are studied in this work. A risk process related to a short term periodic environment and the periodicity for its compound claim counting process are discussed. The ruin probabilities of compound non-homogenous Poisson …
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Elastic Stability of Radially Non-Homogeneous Rings Under Uniform Pressure
Made available in DSpace on 2014-12-04T23:10:59Z (GMT). No. of bitstreams: 1 6003940.pdf: 1695218 bytes, checksum: 8bcb184b73826aee4ea1da7e573f5416 (MD5) Previous issue date: 1960
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Dynamic tunability enhancement of reflectarray antenna using non-homogeneous dielectric materials
… tunable reflectarray antenna based on non-homogeneous properties of substrate materials has been introduced. This research study provides a thorough investigation on the tunability performance of reflectarrays designed in X-band frequency range. The objective of this work is to …
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Estimating Non-homogeneous Intensity Matrices in Continuous Time Multi-state Markov Models
… the MSM model under the assumption of time-homogeneous transition intensities. In the context of non-homogeneous intensities, current methods use piecewise constant approximations which are less than ideal. We propose a local likelihood method, based on Tibshirani and Hastie (1987) and …
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Modeling ultrasonic transducer in homogeneous and non-homogeneous media using DPSM method
… is an important aspect of research in nondestructive evaluation and testing. In most nondestructive evaluation applications, the ultrasonic transducers are traditionally modeled as: (1) point sources generating spherical wave fronts (2) line sources generating cylindrical wave fronts, …
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A Theoretical and Experimental Investigation of Axisymmetric, Non-Homogeneous, Compressible Turbulent Mixing
Made available in DSpace on 2014-12-10T22:48:10Z (GMT). No. of bitstreams: 1 7114805.pdf: 3023124 bytes, checksum: 752fd2b92d76b3aed4f16486a7866b95 (MD5) Previous issue date: 1970
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Theory of Non-Homogeneous Anisotropic Elastic Shells Subjected to Arbitrary Temperature Distribution
Made available in DSpace on 2014-12-04T23:10:59Z (GMT). No. of bitstreams: 1 5904539.pdf: 1768149 bytes, checksum: 0aaf3c7853a37e3d1802a7a4491590c4 (MD5) Previous issue date: 1959
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Cognitive and operational implications of non-homogeneous aircraft equipage for aviation system transformation
The air traffic management system is currently experiencing a significant transformation to provide better quality service and to match the increasing air traffic demand. This transformation requires airlines to retrofit their fleet. However, airlines implement new operating capabilities at …
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Multiple model estimation for linear stochastic hybrid systems with non-homogeneous transition probabilities
… is relaxed. Recent work done in the area of non-Markov jump stochastic hybrid systems is explored, including semi- Markov systems, non-homogeneous transition probability matrices, and continuous-state-dependent mode transitions. Algorithms needed to develop linear multiple model based filters …
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Detecting semantic concepts in digital photographs: low-level features vs. non-homogeneous data fusion
… categories such as indoor/outdoor, building/non-building, urban/landscape, people/no-people, etc., allows us to obtain the semantic labels without the full knowledge of all objects in the scene. Inferring the presence of high-level semantic concepts from low-level visual features is a …
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A look at T1 and Tb theorems on non-homogeneous spaces through time-frequency analysis
… tiles and trees is used to prove T1 theorem on non-homogeneous spaces. This provides an alternative and a more visualized point of view to some parts of the proof. We also verify estimates from $L^p\times L^q$ to $L^r$ for the paraproducts appeared in T1 theorem. Although the paraproduct is …
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The applicability of stochastic turbulent transport models in strongly non-homogeneous and non-stationary flows
The objective of this work has been to assess the applicability of the direct-pdf method for the modeling of turbulent-transport processes inside reciprocating engines. The research can be divided in two phases.
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On a class of temporally non-homogeneous Markov processes and their relationship to infinite particle gases.
Massachusetts Institute of Technology. Dept. of Mathematics. Thesis. 1966. Ph.D.
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Fatigue Simulation of Human Cortical Bone using Non-Homogeneous Finite Element Models to Examine the Importance of Sizing Factors on Damage Laws
… called a stressed volume effect. In this thesis non-homogeneous finite element models were used to examine the effects of "sizing factors" on damage laws in fatigue simulations. Non-homogeneous finite element models were created from micro computed tomography (CT) images of dumbbell shaped …
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A Numerical Study of Burgers' Equation With Robin Boundary Conditions
… conditions. Then we consider the case where the non-homogeneous Robin boundary conditions approach non-homogeneous Neumann conditions. Finally we numerically approximate the steady state solutions to Burgers' equation with both the homogeneous and non-homogeneous Robin boundary conditions.
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An Investigation of the Mechanical Implications of Sacroplasty Using Finite Element Models Based on Tomographic Image Data
… used to create the mesh geometry, and to apply non-homogeneous material properties to the models. Models were created with homogeneous and non-homogeneous material properties, normal and osteoporotic bone, and with and without cement. The results indicate that the sacrum has a 3D multi-axial …
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ΕΛΕΓΧΟΣ ΤΗΣ ΑΣΥΜΠΤΩΤΙΚΗΣ ΣΥΜΠΕΡΙΦΟΡΑΣ ΜΗ ΟΜΟΓΕΝΩΝ ΜΑΡΚΟΒΙΑΝΩΝ ΣΥΣΤΗΜΑΤΩΝ
… WE ARE CONCERN IN THE ASYMPTOTIC BEHAVIOUR OF NON HOMOGENEOUS MARKOV SYSTEMS. VARIOUS TYPES OF MODELS ARE DEVELOPED . THESE MODELS ARE USED IN ORDER TO EXPLORE THE BEHAVIOUR OF MANPOWER SYSTEMS WHOSE POPULATION IS STRATIFIED INTO CLASSES. SUITABLE MANIPULATION OF THESE MODELS MAKES POSSIBLE THE …
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