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 33 for “"critical locations"”.
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Identification of critical locations across multiple infrastructures for terrorist actions
… makers can determine whether these regions are critical locations based on their susceptibility to terrorist acts. We identify these locations by calculating a value for a geographic region which represents the combined values to the decision makers of all the infrastructures crossing through …
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A methodology for the identification of critical locations in infrastructures
The extreme importance of critical infrastructures to modem society is widely recognized. These infrastructures are complex, interdependent, and ubiquitous; they are sensitive to disruptions that can lead to cascading failures with serious consequences. Protecting the critical infrastructures from …
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A three phase short circuit analysis of the Naval Weapons Laboratory electrical distribution system
… of maximum fault currents available at all critical locations is given. The study also includes one-line reactance diagrams for the entire system.
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Variable complexity modeling of postbuckled stiffeners for delamination initiation
… configuration are found to be delamination critical sites. Both interlaminar shear stress tangent to the free edge and tensile interlaminar normal stress are significant at these critical locations and are likely to initiate delamination.
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Overview of the Skin Friction measurements on the NASA BeVERLI Hill using Oil Film Interferometry
… friction measurements are obtained at specific critical locations on the hill and in its close proximity. The challenges involved in obtaining skin friction data from these locations are discussed in detail. Detailed discussions on the experimental setup and data processing methodology are …
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Proximity Coupled Non-Intrusive Wireless Sensors For Monitoring and Diagnostics
… which can be wrapped around power line cables in critical locations that are more prone to insulation damage either due to high humidity and temperature, (2) a broadband conformal low-profile surface wave exciter development which can be used to inject a broadband pulse to determine the location …
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Methodology for a Security-Dependability Adaptive Protection Scheme based on Data Mining
… the optimal security/dependability bias of a critical protection scheme.
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Transient Stability Prediction based on Synchronized Phasor Measurements and Controlled Islanding
… This method enables to find out the strategic locations for PMUs installation in the power system to rapidly predict transient stability. From the simulations performed, it is realized that system stability can be predicted in approximately 200 milliseconds (12 cycles). The main advantage of …
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Robot Motions that Mitigate Uncertainty
… imperative for ground vehicles to swiftly reach critical locations. Afterward, an agent deployed at a specified location must navigate inside a building to find a target, whether it is an object or a person. In the first problem, the terrain information is only available as an aerial …
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Classification of atherosclerotic plaque vulnerability by mechano-radiomics
… the maximum stress-P1 was consistently higher at critical locations relating to plaque rupture. Locations at the fibrous cap, plaque shoulder and the bifurcation region were considered to evaluate the critical stress. The hypothesis of higher stress on the culprit side was proved to be robust to …
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Quasi-Static Structural Analysis of an Experimental Aircraft Wing
… is performed on the wing structure to determine critical strain locations and optimal sensor distribution. Subsequent mechanical experimentations are performed using a bending test to measure the strain at critical locations along the wing structure using resistive uniaxial strain gauges. To …
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Wind-induced dispersion of building exhaust in an urban environment : a full-scale and wind-tunnel study
… be carried out to predict peak concentrations at critical locations. However, neither ASHRAE models nor wind tunnel modeling have been thoroughly validated with full-scale data. For the purpose of evaluating empirical formulas and wind tunnel modeling techniques, four field tests on the roof of …
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Geophysical Assessment of Subsurface Soil Conditions Using Capacitively Coupled Resistivity
… The CCR method could be used to identify critical locations for drilling and sampling such as expansive clay layers and anomalies (sinkholes, unknown landfills, etc.) rather than uniformly sampling across a site. CCR surveys were performed at Alpena, Arkansas along a highway expansion …
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Path Prediction and Path Diversion Identifying Methodologies for Hazardous Materials Transported by Malicious Entities
… into weapons causing explosions in high profile locations. The present research is divided into two parts. First, a neural network model is developed to identify when a hazmat truck deviates from its pre-specified path based on its location in the road network. The model identifies abnormal …
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Structural Performance of Longitudinally Post-Tensioned Precast Deck Panel Bridges
… strains and deflections at a number of other critical locations. The long-term testing involved monitoring the strains within the deck and on one of the six girders for a number of months in order to document the changes in strain due to creep and shrinkage. The results of these tests were …
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Lubricant-derived ash : in-engine sources and opportunities for reduction
… to determine the composition of the lubricant in critical locations in the engine system, where oil is lost by liquid oil consumption and vaporization. The first practical in-situ FTIR measurements of lubricant composition at the piston and liner interface are obtained with a novel diagnostics …
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Full Field Reconstruction Enhanced With Operational Modal Analysis and Compressed Sensing for General Dynamic Loading
… the structural response at several discrete locations. The accuracy of the measurements varies with the location and orientation of the sensors. Practically, it is not possible to place sensors at all the critical locations for different excitations. Therefore, an approach that derives the …
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Extra-light log trailer design
… Static stress analysis was performed to identify critical spots in the structures and to estimate stresses encountered at these locations. These spots were selected as strain gage placements for the experimental dynamic stress analysis. A special data acquisition system based on the STD bus …
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Crack path selection in microstructurally tailored inhomogeneous polymers
… and a host of secondary cracks appearing at critical locations. Additionally, different types of failure occur within the granular inhomogeneous model displaying intergranular and/or transgranular failure for specific hours of UV irradiation. The DIC results, correlated with global …
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4D mapping of network-specific pathological propagation in Alzheimer's disease
… of network-level deficits and identifies critical locations of early A[beta] deposition in the brain. By linking molecular and network observations, I begin to provide biological explanations for the clinical manifestation of AD. This perspective can guide earlier patient identification …
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