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 23 for “"hierarchical design"”.
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Implementation of hierarchical design for manufacture rules in manufacturing processes
… of manufacturing processes is important. Design for Manufacture (DFM) is the practice of designing products with manufacturing issues using an intelligent system, which translates 3D solid models into manufacturable features. Many existing and potential applications, particularly in the …
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Hierarchical design of morphing shape-memory polymer structures via topology optimization
… stimulus. In this study, we focused on the design optimization of SMPs that are actuated by the application of a thermal gradient. This study puts forward an optimization framework for systematic design of shape morphing structures capable of exhibiting large deformations with SMPs. A …
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STRUCTURE-PROPERTY RELATIONSHIPS OF BLOCK COPOLYMERS CONFINED VIA FORCED ASSEMBLY CO-EXTRUSION FOR ENHANCED PHYSICAL PROPERTIES
… self-assembly and forced assembly to achieve hierarchical design within films for mechanical enhancement. When block copolymers are forced to self-assemble in restricted geometries, their physical properties tend to deviate from the bulk behavior. An understanding of their physical properties …
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An Object-oriented design for hierarchical B-spline surfaces
… free-form surface modelling based on the hierarchical overlay methodology of [Forsey88]. This work is motivated by the need to provide a space-efficient representation of tensor-product hierarchical spline surfaces, multiple offset method support, and general surface representation. This …
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An interactive design rule checker for integrated circuit layout
An implementation of an interactive design rule checker is described in this thesis. Corner-based design rule checking algorithm is used for the implementation. Due to the locality of checking mechanism of the corner-based algorithm, it is suitable for hierarchical and interactive local design rule …
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Extreme energy absorption : the design, modeling, and testing of negative stiffness metamaterial inclusions
A persistent challenge in the design of composite materials is the ability to fabricate materials that simultaneously display high stiffness and high loss factors for the creation of structural elements capable of passively suppressing vibro-acoustic energy. Relevant recent research has shown that …
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Module Shaping and Exploration in Rapid FPGA Design and Assembly Workflows
The modular design methodology has been widely adopted to harness the complexity of large FPGA-based systems. As a result, a number of commercial and academic tool flows emerged to support modular design including Hierarchical Design Flow and Partial Reconfiguration Flow, OpenPR, HMFlow, PARBIT, …
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Automatic layout synthesis for high-performance full custom VLSI chips
… trend, the physical layout synthesis by human designers becomes costly and error prone due to the various design constraints. Therefore, the demands for intelligent tools have been increasing to create physical layouts for custom logic design. We developed an automatic layout synthesis system …
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Superconducting Nanowire Integrated Circuits for Scalable Cryogenic Memory
… storage with zero static power consumption. A hierarchical design framework is established, combining automated layout generation, electrothermal simulation in LTspice, and microscopic modeling using the time-dependent Ginzburg–Landau (TDGL) formalism. To enable scalable integration, this work …
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Experiments augmented computational analysis of structural materials: A focus on metallic and biological systems
… analyze the structure-property relationships and design pearlite lamellae for optimized mechanical performance. Furthermore, the study extends to bio-inspired materials, investigating Nacre like structures for topology optimization aimed at enhancing mechanical properties and wave filtering …
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Investigation of a Design Performance Measurement Tool for improving collaborative design during a design process
With rapid growth of global competition, the design process is becoming more and more complex due largely to cross-functional team collaboration, dynamic design processes, and unpredictable design outcomes. Thus, it is becoming progressively more difficult to support and improve design activities …
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System level performance and yield optimisation for analogue integrated circuits
… the impact of process variations on analogue design has become prominent and can lead to circuit performance falling below specification and hence reducing the yield.<br/>This thesis explores the methodology and algorithms for an analogue integrated circuit automation tool that optimizes …
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The effects of hearing protection on speech discrimination in differing noise spectra
… in the experiment and a mixed-factors, partial hierarchical design was used for data collection. Analysis of variance and Newman-Keuls multiple-range tests were applied to the data. All main effects, with the exception of hearing level blocks, were significant, in addition to several …
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Configurable Hierarchical Allreduce Algorithms for HPC Systems
… This thesis introduces a configurable hierarchical design for the Allgather and Reduce Scatter collectives, which serve as the building blocks for a parameterized Allreduce. The approach is controlled by two variables: the radix k of the recursive exchange pattern and the batch size b …
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Clinical Question-Answering over Distributed EHR Data
… across distributed storage. We introduce a novel hierarchical design for federated document retrieval, in which leaf nodes perform local similarity search while non-leaf nodes route queries based on access policies and aggregate documents returned by their children. We also create a dataset on …
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CROSS-AGE TUTORING BY HIGH SCHOOL STUDENTS AND THE AFFECTIVE PERCEPTION OF FOURTH GRADERS.
… to a two-factor analysis of variance using a hierarchical design. The primary aspect of this design is the assumption that an individual's score is partly influenced by the social unit of which the individual is a member. In all categories the treatment of cross-age tutoring had no effect on …
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The Visual Scalability of Integrated and Multiple View Visualizations for Large, High Resolution Displays
… are often used to aid these scientists, but designing the visualizations is challenging. One aspect of the visualization design space is a choice of when to use a single complex integrated view and when to use multiple simple views. Because of the many tradeoffs involved with this decision it …
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Particle Filtering and Optimal Control for Vehicles and Robots
… characteristics. The conclusions motivate the design of a novel, two-level hierarchical approach to optimal trajectory generation for wheeled vehicles. The first novelty is the use of a nonlinear vehicle model with tire modeling in the optimization problem at the high level. This provides for …
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The Influence of Time-Dependent Rheology on the Multiple Scales of 3D Printing with Cementitious Materials
… and as an enabler for bio-inspired hierarchical design, with control extending from the printed filament scale to the full structure scale. Extrusion behaviour when printing is governed by time-dependent rheology as colloidal flocculation and hydration reactions transition the …
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A New Methodology for Evaluating the Effectiveness of Bus Rapid Transit Strategies
… an innovative approach by using nested sets (hierarchical design) of TSP and BRT combination scenarios. Coupled with microscopic simulation, nested sets in the hierarchical design are used to evaluate the effectiveness of BRT without TSP, then with conditional or unconditional TSP strategies. …
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