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 233 for “"hierarchical structure"”.
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Multiscale Modeling Of The Hierarchical Structure Of Cellulose Nanocrystals
… K). A comprehensive study of the hydrogen bond structure that characterizes crystalline cellulose has been conducted in an attempt to ascertain the roles that inter- and intra- molecular hydrogen bonds play in determining the mechanical properties of CNCs. Five different force fields/parameter …
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FWER controlling procedures for testing multiple hypotheses with hierarchical structure and applications in clinical trials
… the hypotheses to be tested often exhibit a hierarchical structure, and are usually hierarchically ordered based on their importance, clinical relevance, or dose concentration, etc. Thus, they are tested in a pre-defined fixed sequence. In some more complex cases, the hypotheses to be tested …
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Hierarchical Classification of Variable Stars Using Neural Networks
… exploit star properties but fail to use the hierarchical structure known to exist in a specific family of stars. We believe embedding hierarchical information of stars into a learning algorithm can lead to more robust and efficient machine learning models. The goal of this thesis is to …
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Tiling with Polyominoes, Polycubes, and Rectangles
In this paper we study the hierarchical structure of the 2-d polyominoes. We introduce a new infinite family of polyominoes which we prove tiles a strip. We discuss applications of algebra to tiling. We discuss the algorithmic decidability of tiling the infinite plane Z x Z given a finite set of …
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From information searching to learning: A comparison of contrasting hypertextual menu designs for computer-based instructional documents
… the influence of three different combinations of structures and menu designs on users' attitude, performance, and learning in five different search tasks. The three types of combinations studied were: (a) an explicit menu signaling hierarchical structure where cross-referencing was not supported …
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A study of hypertext document structure and individual differences: Effects on learning performance
… performance. The interaction effects between structure of hypertext documents and individual difference variables were examined. The three types of combinations of structure and menu design were: (a) hierarchical structure signaled by explicit menus and referential links presented by embedded …
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Eumelanin and polydopamine : self-assembly, structure, and properties
In this thesis, a detailed hierarchical structure of eumelanin is described and validated in molecular dynamics simulations. For the first time, the gap between primary, secondary, and aggregate structures of eumelanin is bridged. Based on the hierarchical structure, a new explanation of the …
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Efficient Indexing, Browsing and Retrieval of Image /Video Content
… burden; and (iii) introduction of a video hierarchical structure and construction of video Table of Contents to facilitate the video analysis and retrieval. Extensive experimental results over large test data sets have validated the proposed approaches.
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Modeling Mortality of Loblolly Pine Plantations
… survival analysis techniques. Multilevel data structure inherent in permanent sample plots data i.e. measurement occasions nested within trees (e.g., repeated measurements) and trees nested within plots, is often ignored in modeling tree mortality in forestry applications. Multilevel …
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Synthesis of stochastic learning automata.
… available. Stochastic automata with a variable structure operate by means of a global random search, interacting with the environment to improve the action strategy towards optimum performance. They represent therefore a novel and attractive solution to a large class of problems involving high …
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Undergraduate engineering students' experiences of interdisciplinary learning: a phenomenographic perspective
… learning experiences were interviewed using semi-structured protocols. They concretely described their experiences and reflected meaning associated with those experiences. Analysis of the data revealed eight qualitatively different ways that students experience interdisciplinary learning, which …
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Optimization of copper oxide film by dip coating technique for oxygen detection
… nontoxicity and abundant on earth. The CuO hierarchical structure is used to enhance the sensing performance of the gas sensor. This is because of its structure provides large surface area for the adsorption of gas into the sensing surface. However, most of the structure of CuO based gas …
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The Hindu Code Bill and the making of the modern Indian state
… in India helped to ensure and even sharpen the hierarchical structure of patriarchal authority in India. Enabling a small number of officials to maintain order over large regions of the subcontinent, colonial modes of governance served to subordinate not only women but also many men to the …
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Decomposition techniques for large-scale optimization in the supply chain
… scale using standard MILP solvers. The natural hierarchical structure in the supply chain problem lends itself well to application of decomposition techniques intended to speed up solution time. Exact techniques, such as Benders decomposition, are explored as a baseline. Classical Benders …
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A study of the molecular mechanics of wood cell walls
… feature of wood as used in artificial structures is rooted in the plant's evolved capability to withstand the conditions of its survival: specifically wind and gravity loads. Wood resists these load types with remarkable efficiency with performance comparable to structural alloys. …
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On the Development of Inductive Learning Algorithms: Generating Flexible and Adaptable Concept Representations
… complexity of the hypothesis comprised at each hierarchical layer, and (2) adaptability in the search for different representations, to know when to stop adding more layers in top of the hierarchical structure. Adaptability allows HCL to adjust the complexity of the representation by building …
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Micromechanics-Based Analysis of Fiber-Reinforced Laminated Composites
… The material modelling procedure has a two-level hierarchical structure. At the bottom level, constitutive information about the fiber and the matrix phases are synthesized using a micromechanical model to yield the effective stress-strain response of a unidirectional lamina. At the top level, a …
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Language Mechanisms for Context Switching and Protection in Level Structured Operating Systems
… that are well protected and exhibit an explicit hierarchical structure.
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