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.
Results
Showing 1 to 20 of 160 for “"Top-down approach"”.
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Top-down Approach To Securing Intermittent Embedded Systems
… in intermittent computing. This research takes a top-down approach to design secure intermittent systems. To that end, we identify security threats, design a secure intermittent system, optimize its performance, and evaluate our design using embedded benchmarks. First, we identify vulnerabilities …
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Hierarchical Approaches to Vlsi Circuit Layout
This thesis studies two hierarchical approaches to the circuit layout problem: the top-down approach and the bottom-up approach.
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Natural language interface to relational database: a simplified customization approach
… sacrificing coverage and accuracy. This goal is approached by the introduction of two authoring frameworks that aim to reduce the workload required to port a NLIDB to a new domain. The first authoring approach is called top-down; it assumes the existence of a corpus of unannotated natural …
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FABRICATION AND CHARACTERIZATION OF ACTIVE NANOSTRUCTURES
… fabricated using a bottom-up fabrication approach are first discussed. The fabrication avoids the ion implantation step since silicon nanowires are doped in-situ during growth. Germanium junctionless transistors fabricated with a top down approach starting from a germanium on insulator …
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T-Spline Simplification
… with similar but less complex T-splines. Two approaches to simplifying T-splines are proposed: a bottom-up approach that iteratively refines an over-simple T-spline to approximate a complex one, and a top-down approach that evaluates existing control points for removal in producing an …
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III-V vertical nanowire transistor for ultra-low power applications
… transistor technology has been pioneered via a top down approach for logic applications in future ultra-low power systems. Process flow and critical modules for sub-10 nm VNW transistors are developed from scratch. A novel dry etch technique based on BCl₃/SiCl₄/Ar chemistry for fabricating …
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Fabrication and applications of in-fiber semiconductor and metal microspheres
… or metal microspheres has occurred via top-down approaches, such as through ball milling or e-beam lithography, or via bottom-up approaches, such as colloidal chemistry. Top-down approaches often generate a wide particle size distribution, while bottom up approaches often involve toxic …
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STUDY OF SUPPLY AND DEMAND DYNAMICS OF THE STRUCTURED SETTLEMENTS MARKET
… indexes, and existing literature on similar topics from other asset classes (Commercial Mortgage-backed Securities (CMBS) & High Yield Bonds). The data analysis will take a top-down approach using quantitative research methods. The motivation for this research study is to enhance visibility …
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“Angles of Approaching Gender Equality: Top-Down vs. Bottom-Up”
… however failed to identify a successful approach to implementing this type of norm effectively. This paper will explore how these international norms are spread and analyze two separate approaches to integrating gender equality: top-down and bottom-up. It will assess these approaches …
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An application of Hierarchical Temporal Memory (HTM)
… theory has been presented from a high level, top down approach, with the view of understanding how the human brain performs higher reasoning, and then designing software infrastructure based on that theory - namely Hierarchical Temporal Memory (HTM). Current opinion raises question marks as to …
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THE ROLE OF TRIGEMINAL ISL1 NEURONS IN FEEDING BEHAVIOUR
… into feeding regulation is dominated by a top-down approach in establishing hypothalamic driven circuits of appetite. However, the link between hypothalamic feeding regions and the motor control of consummatory behaviour remains unclear. The work in this thesis identified a marker, ISL1, …
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DYNAMIC DECISION MAKING IN AN AUTOMATED CONTAINER YARD BLOCK VIA OPTIMIZATION-EMBEDDED DISCRETE-EVENT-SIMULATION
… storage and retrieval requests. An innovative top-down approach to a hybrid modelling formalism is adopted to provide a discrete-event simulation model of yard crane operations. This model is used to compare operational strategies addressing the storage allocation and job scheduling problems. …
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Multi-resolution region-preserving segmentation for color images of natural scene
… and then applies a graph cut algorithm at the top level of the pyramid to identify main regions in the image, and finally refines the region boundaries with a top-down approach based on integer linear programming. This way, main image regions are identified while over-segmentation is minimized.
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Decision Making Process of Campus Administrators In Building Leed Residence Halls
… and that it can come from either a bottom-up or top-down approach. In this study, there are many outside factors that influence thedecision making of the people involved, but for the most part it is because they recognize it is the right thing to do. The conceptual framework of this study is the …
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Using the Unified Modeling Language (UML) to represent artefacts in the Zachman Frameword
An interpretive research approach will be used to describe and decompose UML diagrams into their respective building blocks. A top down approach will be used to determine views that are important to enterprises during the system development lifecycle. The importance of providing graphical …
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Microfluidic flow-focusing device for the electrospinning of hollow polymer nanofibers
… electric field, has gained the most favor as a top-down approach to producing polymer nanofibers. In this work, a microfluidic device was designed and assembled for the two-dimensional focusing of immiscible fluids and integrated into a system for electrospinning. Hollow fibers were produced …
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Simulation methods for the development of modular strategic guidance systems
The traditional approach to simulation-based system design results in a stovepiped development process where subsystems are developed independently and integration requirements are then levied on the system architecture. For applications like the MK6 Life Extension program, where a modular system …
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Three-dimensional nanofabrication of photonic crystals and polarization splitters and rotators
… progress has been made in the "bottom-up" approach, the lithographic "top-down" approach remains the only way to encode human engineering effort, and to meet the optimal theoretical designs. Probably the most prominent example of lithographic fabrication is semiconductor manufacturing. …
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Reliability Analysis for Hazard and Operability Studies
… a new methodology for obtaining the exact TOP event probability of coherent fault trees. The technique uses a top-down approach similar to that of FATRAM. This new Fault Tree Disjoint Reduction Algorithm resolves all the intermediate events in the tree except OR gates with basic event …
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Agent-based techniques for National Infrastructure Simulation
… models are described and compared. The bottom-up approach of the agent-based model is found to be more suitable than the top-down approach of the variable-based model. Supercomputer and distributed, or grid computing solutions are explored. Both are found to be valid solutions and have …
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