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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 706 for “"Characterizations"”.
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Electromagnetics in characterizations
(cont.) Characterization of the differential guided mode of a coupled-strip transmission line allows us to understand its behaviors in high frequency circuit applications. S-parameters of the differential mode of a coupled-strip transmission line on a multi-layer silicon substrate extracted from …
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Thiophene Based Semiconductors: Synthesis and Characterizations
Diverse conformational transitions and aggregations of regioregular head-to-tail polyhexylthiophene in different environments have been studied by means of AFM and UV-vis spectroscopy. A helical conformation of the main chain with 12 thiophenes rings per each helical turn has been proposed. Length …
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Characterizations of how neural networks learn
Training neural network architectures on Internet-scale datasets has led to many recent advances in machine learning. However, the mechanisms underlying how neural networks learn from data are largely opaque. This thesis develops a mechanistic understanding of how neural networks learn in several …
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Characterizations of Planar Lattices by Left-relations
Recently, Formal Concept Analysis has proven to be an efficient method for the analysis and representation of information. However, the possibility to visualize concept hierarchies is being affected by the difficulty of drawing attractive diagrams automatically. Reducing the number of edge …
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Optically-Connected Memory: Architectures and Experimental Characterizations
Growing demands on future data centers and high-performance computing systems are driving the development of processor-memory interconnects with greater performance and flexibility than can be provided by existing electronic interconnects. A redesign of the systems' memory devices and architectures …
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Stream hydrologic characterizations across time and space
Includes bibliographical references (pages 113-120).
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A doppler electrophoresis instrument for macromolecular characterizations
Electrophoresis is the technique used to characterize proteins, oligonucleotides, and DNA. Methods employed to date include gel and capillary electrophoresis. Most samples can be characterized by these methods. However, large DNA molecules do not separate well with either method. A newer …
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Characterizations of plutonium nitrate solutions for criticality calculations
In the modeling of plutonium nitrate systems for criticality calculations, the chemical formula is usually assumed to be Pu(N03)4 (where plutonium is in the +4 valence state). However in a unique situation of chemistry, plutonium has four oxidation states (III), (IV), (V), and (VI) that can exist …
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Characterizations and Probabilistic Representations of Effective Resistance Metrics
This thesis studies effective resistances of finite and infinite weighted graphs. Classical results state that it is a metric on the set of vertices of the graph and that it can be expressed completely in terms of the graph’s random walk. The first goal of this thesis is to provide a concise and …
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Tribological and mechanical characterizations of polyelectrolyte multilayer nanoassemblies
Over the last decade, the sequential layer-by-layer assembly of oppositely charged polyelectrolytes has received much interest for the deposition of film architectures, ranging from tens to hundreds of nanometers in thickness, that can be precisely tuned as a function of the processing conditions. …
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Sintering and Characterizations of 3D Printed Bronze Metal Filament
… the detailed study of their sintering and characterizations is still missing. In this study, the research is focused on 3D printing of bronze filaments. Bronze is a popular metal for many important uses. The objectives of this research project are to study the optimal processing conditions …
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High-speed characterizations of single quantum-well transistor laser
… this thesis will be on the methods of high-speed characterizations on TLs and data of the optical modulation bandwidth, f-3dB, and error-free data transmission.
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Two Characterizations of a Class of Metabelian P-Groups
Made available in DSpace on 2014-12-05T21:50:12Z (GMT). No. of bitstreams: 1 5902008.pdf: 1631305 bytes, checksum: 506c88f811c118993b0c4c8e2afefd79 (MD5) Previous issue date: 1959
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Geometrical and Martingale characterizations of UMD and Hilbert spaces
Suppose that X is a real or complex Banach space with norm $\vert \cdot \vert$. Then X is a Hilbert space if and only if $E\vert x + Y\vert \geq 1$ for all x $\in$ X and all X-valued Bochner integrable functions Y on the Lebesgue unit interval satisfying EY = 0 and $\vert Y\vert \geq$ 1 a.e. This …
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Growth and characterizations of two-dimensional metal-organic frameworks
Metal-Organic Frameworks (MOFs) are a class of porous materials with a crystalline structure that can be designed based on extremely tunable building blocks of organic molecules and metal ions. They are typically insulators but making them [pi]-conjugated with two-dimensional structure results in …
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Triboemission From Ceramics: Charge Intensity and Energy Distribution Characterizations
Lubrication of ceramics is a difficult and not completely solved problem. Ceramics do not respond to conventional lubricants which are designed to function by a chemical reaction with the surface. There is, accordingly, increased interest in the development of lubrication alternatives for ceramics, …
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Boron-carbon-nitrogen heterocycles for hydrogen storage: Synthesis and characterizations
The implementation of hydrogen economy is suffering from several unresolved problems with one particular challenge being the storage of appropriate amounts of hydrogen in a safe and efficient manner. Among the current hydrogen carriers, BN based compounds exhibit excellent volumetric and …
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Synthesis and characterizations of nanostructured MnO2 electrodes for supercapacitors applications
The objective of this research was to develop highly efficient and yet effective MnO2 electrode materials for supercapacitors applications. Most attention had focussed on MnO2 as a candidate for pseudo-capacitor, due to the low cost of the raw material and the fact that manganese is more …
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II-VI Core-Shell Nanowires: Synthesis, Characterizations and Photovoltaic Applications
<p>The emergence of semiconducting nanowires as the new building blocks for photovoltaic (PV) devices has drawn considerable attention because of the great potential of achieving high efficiency and low cost. In special, nanowires with a coaxial structure, namely, core-shell structures have …
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