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 11 of 11 for “"active structure"”.
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Power efficiency analysis for an Active structure
… the structural-acoustic power efficiency of active structures are developed. For this work we define the power efficiency as the ratio of the sound power radiated by a structure to the maximum possible radiated sound power. An active structure is defined as one that has electromechanical …
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Bayesian Active Structure Learning for Gaussian Process Probabilistic Programs
… should we gather to learn about the underlying structure of the world as quickly as possible, especially in cases where data is sparse or expensive to acquire? Structure learning techniques for Gaussian process (GP) probabilistic programs provide a rich framework for inferring qualitative …
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Design of Active Structure Acoustic Control Systems Using Eigenassignment Approach
Active structural acoustic control (ASAC) in conjunction with the adaptive feedforward control has been proved to be an efficient practical approach to reduce structure-borne sound. ASAC works on the principles of reducing the vibration amplitude of the structure (modal reduction), as well as …
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Optimal self assembly of modular manipulators with active and passive modules
… build self-assembling robot systems composed of active modular robots and passive bars. The robotic module is the Shady3D robot and the passive component is a rigid bar with embedded IR LEDs. We propose algorithms that demonstrate the cooperative aggregation of modular robotic manipulators with …
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Metal And Metal Oxide Nanocrystals For Catalysis And Magnetic Applications
… focus on exploiting the composition- and crystal structure-dependent properties of monodisperse bimetallic NCs to establish the structure-property relationships of thermal, electro-, and photocatalytic performance. Specifically, we show that the selectivities for the hydrodeoxygenation reaction of …
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Interaction of the Neurospora crassa mitochondrial tyrosyl-tRNA synthetase with group I intron RNAs
… by promoting the formation of the catalytically active structure of the intron RNA. To investigate how CYT-18 stabilizes the active RNA structure, I used an Escherichia coli genetic assay with the phage T4 td intron to systematically test the ability of the CYT-18 protein to compensate for …
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Structural-acoustic design and control of an integrally actuated composite panel
… and naval systems. A promising approach utilizes active materials to intelligently control the dynamic response of light-weight, modally dense structures suppressing the radiated acoustic power. The basic representative structural element of a single panel offers an analytically tractable basis …
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Synthesis, Structure and Properties of Mixed Metal Oxides: From Pyrochlores to Fluorites
… throughout this thesis are described. Synthesis, Structure and Transport Properties of Bi2Zr2-xTixO7 Phases: The characterisation of Bi2Zr2-xTixO7 compounds is reported for the first time. An increase in conductivity of 3 orders of magnitude is found for the Zr- rich end member. Bi2Ti2O7, which …
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Planar GaAs nanowire arrays for nanoelectronics: controlled growth, doping, characterization, and devices
… to produce one-dimensional semiconductor structures, or nanowires. VLS nanowires are formed via a chemical or physical deposition process, where a metallic nanoparticle (seed) facilitates the growth. Nanowire growth diameter is strongly correlated to seed size, therefore top-down …
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s-, p-, and f-block metals-mediated novel iron-based compounds as precatalysts for efficient alkaline OER
… suffers from insufficient exposure of surface active sites and inadequate mass transport and bubble detachment capabilities. Moreover, although many Fe-based compounds are claimed to possess intrinsically "outstanding OER capabilities," their performances are often mis/overestimated due to …
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TDiscovery and Development of Novel Therapeutic Agents for Advanced Melanoma
… cell lines led us to the discovery of three active structure scaffolds: serine amides, serine amino alcohols, and arylthiazolidine-4-carboxylic acid amides (ATCAAs). Because ATCAAs showed better selectivity between cancer cells and normal fibroblast cells, the chemists in our group focused on …