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 471 for “"multi-layered"”.
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Multi-layered Space Frequency Time Codes
… dissertation focuses on three major advances on multiple-input multiple-output (MIMO) systems. The first studies and compares decoding algorithms for multi-layered space time coded (MLSTC) systems. These are single user systems that combine spatial multiplexing and transmit diversity. Each layer …
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Dense subgraph detection on multi-layered networks
… subgraphs within a single network, or within a multi-view network consisting of a common set of nodes. However, many real-world applications can be better modeled as multi-layered networks, where nodes and their dependencies vary across the different layers. Dense subgraph detection on such …
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Magnetic properties of small multi-layered rings
… and widths of 300 nm above were fabricated from multi-layer thin film structures such as the ferromagnetic-antiferromagnetic exchange bias bilayer or giant magnetoresistance (GMR) spin valve structure, and their magnetic and magnetoelectric properties were investigated. Exchange-biased elliptical …
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Ballistic resistance of multi-layered steel shields
In this thesis, the ballistic resistance of multi-layered steel shields against projectile impact at the sub-ordnance velocity is evaluated using finite element simulations. Eight types of projectiles of different weight and nose shapes are considered, while the multi-layered shields studied are …
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Structural analysis of multi-layered concrete pavement systems
… analytical and numerical procedures applied to multi-layered concrete pavement systems. In the first part of this Thesis, analytical solutions for interior and edge loading are presented. The Burmister analytical solution for interior loading of a multi-layered system is expanded to the more …
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Multiport synthesis with multi-layered distributed parameter RC networks
"Synthesis and design techniques for multiport, multilayered, distributed parameter RC networks are investigated in this dissertation. The basic building block is a network section of uniform width consisting of alternate layers of resistive and dielectric materials on top of a perfectly conducting …
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Multi-layered security in the Internet of the Things
… This thesis basically explores the use of multiple security mechanisms in an Internet of Things environment by using Contiki OS as the platform of choice for simulations and testing.
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Deformation of multi-layered and graded materials : theory and experiments
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1996.
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Experimental determination of the thermal properties of multi-layered surfaces
… parameter values. The materials were put through multiple tests (Laser Flash Test, Transient Plane Source) to independently identify possible values for these thermal properties. The "true" values were then chosen from these possible values based on how well they allowed the simulated response to …
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Modeling VOCs Emissions from Multi-layered Structural Insulated Panels(SIPs)
… board (OSB) and polystyrene foam (PSF) in a multi-layered sandwich-like structure. Specific benefits of SIPs include lower energy consumption, stronger more durable structures and better resource efficiency. These advantages make panelized systems very attractive from both environmental …
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Finite element modelling of fatigue crack growth in multi-layered architectures
Crack growth analyses in multi-layered architectures used in the automotive industry for plain bearings, displaying elastic and plastic mismatches, were developed through automated meshing processes based on the Finite Element Method in the commercial code ANSYS. Two-dimensional FE analyses studied …
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Three-dimensional visualization of multi-layered graphs with application to communications
… The algorithm is designed for displaying special multi-layered networks. Actually, the algorithm is a method for hidden object elimination. It is useful for multi-layered communication networks visualization. The time complexity of the Depth-Height Buffer Algorithm is O(N log N) . Two …
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Analytical solutions for temperature profile prediction in multi-layered pavement systems
… analytical solutions for temperature profiles in multi-layered pavements have been derived using the method of separation of variables and the Laplace transforms. The derived theoretical solutions consider the pavement geometries, material thermal properties, solar radiation, and air temperature. …
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Thermally-induced deformation of multi-layered materials : analytical and engineering formulations
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1996.
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Exact Solutions to Electromagnetic Scattering Problems with Multi-Layered Oblate Spheroidal Geometry
Computational electromagnetic methods (CEM) play a critical role in the design and analysis of complex electromagnetic (EM) systems. CEM, such as the finite element method (FEM), finite-difference time-domain (FDTD), and method of moments (MoM), allow researchers and engineers to solve practical EM …
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Study of creep characteristics of multi-layered corrugated fibre board protective cushions
Multi-layered corrugated fibreboard, has in recent years been gaining attention as a replacement for polymeric materials for protective packaging for environmental reasons. The properties of pre-compressed multi-layered corrugated fibreboard make it a sustainable replacement for poly-foam and …
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Understanding family physical activity and health related behaviours : A multi-layered approach
In spite of the growing awareness of the importance and health enhancing benefits of physical activity (Anderson et al., 2000; Barengo et at., 2004; Kaleta et al., 2006) the population still remain predominantly inactive (Haskell et at., 2007). Limited UK published data (to date) has simultaneously …
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Supporting Focus and Context Awareness in 3D Modeling Using Multi-Layered Displays
… awareness techniques were developed for a multi-layer computer display to enable modelers to better maintain their focus and context awareness while performing 3D modeling tasks. These techniques are: object isolation, component segregation, peeling focus, slicing, and peeling focus and …
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