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 18 of 18 for “"Adaptation Mechanism"”.
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The XFM view adaptation mechanism: An essential component for XML data warehouses
… redefinitions), which is referred to as the view adaptation problem. In our approach, views are defined using XPath and then modelled using a set of novel algebraic operators and fragments. XPath views are integrated into a single view graph called the XML Fragment Materialisation (XFM) View …
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Functional aspects of blur adaptation in human vision. A study of the mechanism of blur adaptation in human vision - its origin and scope evidenced using subjective and objective procedures.
Sensory adaptation to blur improves visual acuity under defocused conditions. This phenomenon has been successfully demonstrated using subjective measures of acuity and is known as blur adaptation. This study investigates aspects of the mechanism of blur adaptation in human vision using subjective …
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Development and implementation of a methodology for fuzzy logic controller design
… and it implements an implicit on-line tuning and adaptation of the Main-FLC membership functions and rules. The third main function is called Shay-Time and is concerned with the input and output ranges of the Main-FLC. An adaptation mechanism is implemented for on-line updating of the Main-FLC …
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Speed sensorless field oriented control of ac induction motor using model reference adaptive system
… between them is employed to drive a suitable adaptation mechanism which generates the estimated rotor speed for the adjustable model. And indirect vector control scheme controls the flux and torque by restricting the torque and flux errors with respective hysteresis bands, and motor flux and …
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Convivo communicator : an interface-adaptive voice over IP system for poor quality networks
… of poor network performance: an Interface-Adaptation mechanism that suggests adjusting the application user interface to conform to one of three voice communication modalities (full duplex, half duplex, and voice messaging). The thesis proposes that changes in communication modality are an …
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A study of housing modification in East Boston
… Housing modification functions as an important adaptation mechanism especially for working class people who cannot easily move from one place to another because of financial constraints and the tight social relationships among them in the region. Modifications are also a means of self-expression …
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Temporal encoding in the visual system
… system suggest that they work as a fast adaptation mechanism and that they play a central role in visual perception, explaining homogeneously such disparate phenomena as the spatial Mach bands and their assymetry, the Broca-Sulzer effect, and backward masking. Suggestions about further …
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Enhancing Performance of Next-Generation Vehicular and Spectrum Sharing Wireless Networks: Practical Algorithms and Fundamental Limits
… present a novel pilot configuration design and adaptation mechanism for cellular vehicular-to-everything (C-V2X) networks. Drawing inspiration from 4G and 5G standards, the proposed approach is based on limited feedback of indices from a codebook comprised of quantized channel statistics …
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Optimal Adaptations over Multi-Dimensional Adaptation Spaces with a Spice of Control Theory
… systems is the concept of a feedback loop mechanism that monitors the performance of a system relative to its requirements, determines root causes when there is failure, selects an adaptation, and carries it out. The degree of adaptivity of a software system critically depends on the space …
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Analyzing the Dynamics of Biological and Artificial Neural Networks with Applications to Machine Learning
… in the brain. We propose a novel inhibitory adaptation mechanism that allows RCs to autonomously adjust inhibitory connections to achieve a specific firing rate target, motivated by the firing rate homeostasis observed in biological neurons. Overall, this dissertation strives to deepen the …
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INSTRUMENTATION AND CONTROL OF AN INDUSTRIAL SEWING MACHINE
… This approach has also been chosen because its adaptation mechanism imitates the expert sewing operator in controlling the sewing performance.
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Dossier: Distributed operating system and infrastructure for scientific data management
… the design of a new adaptive resource management mechanism to handle large-scale and dynamic scientific workloads. We are the first to apply feedback control theory to design a self-adaptation mechanism for scientific workflow management system to help shorten the time from data acquisition to …
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Ein modellbasierter Ansatz für adaptierbare und selbstadaptive Komponenten
Die komponentenbasierten Softwareentwicklung verspricht die vereinfachte Entwicklung von komplexen Anwendungen. Um die Wiederverwendbarkeit zu verbessern und die Flexibilität zu erhöhen, müssen Komponenten dazu möglichst an verschiedene Umgebungsbedingungen angepasst werden können, sowohl innerhalb …
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The regulation of digestive enzyme release in the two-spotted field cricket Gryllus bimaculatus (de Geer): effects of endogenous and environmental factors
… are still a lot of questions concerning the adaptation mechanism of insects to their environment. As the digestive tract displays a putative target for effective pest management, this study worked on the effects of endogenous and environmental factors on digestive enzyme release in the …
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Effectiveness of a foot orthosis on muscular activity in functional ankle instability
… feedback- as well as anticipatory feedforward adaptation mechanism to prolonged orthoses use, specifically of the PL muscle, underpins the key role of PL in providing essential dynamic ankle joint stability. Due to its advantages over sensorimotor training (positive subjective feedback in terms …
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The Mechanism of Aerotaxis in SALMONELLA TYPHIMURIUM
… in aerotaxis. In this study the biochemical mechanism of aerotaxis and its relationship to other chemotaxis pathways in <em>Salmonella typhimurium</em> was explored with the aid of two new assays which imposed an oxygen gradient independently of bacterial respiration. In the spatial assay, …
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Statistical Relational Learning for Proteomics: Function, Interactions and Evolution
… can be extremely useful to understand the virus adaptation mechanism and to design drugs that effectively counter potentially resistant mutants. We propose a simple approach for mutant prediction where the in- put consists of mutation data with drug-resistance information, either as sets of …
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Designing, Modeling, and Optimizing Transactional Data Structures
… HTM algorithms with a lightweight adaptation mechanism that allows bypassing the HTM paths if the overhead of the semantic operations causes repeated HTM aborts. Experiments on micro- and macro- benchmarks confirm that our proposals outperform the other TM solutions in almost all …