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 2663 for “"Matrices"”.
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Distance matrices of trees
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1986.
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Involutory matrices, modulo m
… the number of all distinct n x n - involutory matrices (mod m) is derived. This is done by first developing a method for the construction and enumeration of involutory matrices (mod P<sup>α</sup>), without duplication, for each prime power modulus P<sup>α</sup>. Using these results, formulas …
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Realization of Loop-Resistance Matrices
Made available in DSpace on 2014-12-04T21:03:14Z (GMT). No. of bitstreams: 1 6001692.pdf: 2362967 bytes, checksum: 77ba6b5606b20ededb0cd15553cf5572 (MD5) Previous issue date: 1960
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Efficient storage of versioned matrices
… analyses, results in the generation of large matrices that must be stored and retrieved. Such matrices are often versioned; an initial matrix is stored, then a subsequent matrix based on the first is produced, then another subsequent matrix after that. For large databases of matrices, …
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Static conformance checking for matrices
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Banded matrices with banded inverses
… we tend to focus on the ranks of the block matrices that are present in the banded matrix. We consider mainly the two factor 2-by- 2 block matrix and the three factor 2-by-2 block matrix cases. We prove that the ranks of the blocks in the larger banded matrix need to necessarily conform to a …
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Authentication protocol using trapdoored matrices
In this thesis, we propose a new type of public-key authentication protocol, which is based on timing gaps. The honest user's secret key allows him to perform a task faster than any adversary. In our construction, the public key is a n x n matrix and the secret key is a trapdoor of this matrix. The …
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Determinants of matrices over lattices
… elements; and evaluations of certain special matrices. An expansion by row or column is given for one determinant and a lemma on inverses is proven in light of another. A preliminary section on Lattice Theory is also included.
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A Computational Approach to the Quillen-Suslin Theorem, Buchsbaum-Eisenbud Matrices, and Generic Hilbert-Burch Matrices
<p> We investigate certain classes of modules of low projective dimension over polynomial rings whose free resolutions have known special structure. We begin with projective modules and investigate a computational approach to a famous theorem of Quillen-Suslin, which states that every finitely …
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Bioartificial matrices to modulate epithelial morphogenesis
… was to engineer bioartificial extracellular matrices (ECM) that would support and modulate epithelial cyst morphogenesis. We have engineered hydrogels, based on a multi-arm maleimide-terminated poly (ethylene glycol) (PEG-4MAL), that present cell adhesive molecules and enzymatic degradation …
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Speciation of chromium in environmental matrices.
… of speciation analysis in such complex matrices. A method based on single extraction with 0.43 mol L[-1] acetic acid followed by on-line ion chromatography with chemiluminescence detection was found to be simple, sensitive, free of interferences, and more importantly the integrity of the …
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Inorganic Nanoparticle Nucleation on Polymer Matrices
… composition and size on the solid polymer matrices was controlled by varying the composition of PAA. PAA and silver nanoparticles effect on the mechanical properties of the calcium alginate hydrogels were also studied. Physically crosslinking PAA with calcium alginate gels enables the …
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Design of Artificial Modular Extracellular Matrices
Cellular functions such as cell growth, adhesion and differentiation are essentially controlled by the surrounding extracellular matrix (ECM). The mechanical, chemical and structural properties of the ECM are consequently crucial for the selection of cells at interfaces and the formation of …
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Drug/Water interactions in hydrogel matrices
The primary aim of this research has been the investigation of the role of water structuring effects in the widely different extents of irritancy displayed by certain antibiotics. The compounds involved were members of the Lincomycin group of antibiotics. The aqueous solution behaviour of these …
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Processing graphs and sparse matrices efficiently
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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