Global ETD Search
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Showing 1 to 20 of 82 for “"hazard assessment"”.
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Seismic hazard assessment in Central Asia
… regions, with the highest level of seismic hazard. Usually seismic hazard is estimated considering ground motion at rock site, but since the ground motion could vary significantly over short distances due to local surficial geology, it is important to consider locally estimated site effects …
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A Hazard Assessment of a Landfill Site
Trecastell landfill site is an open-cast site to which filter cake containing calcium sulfate was deposited as the only known industrial waste. Geological mapping of the site was carried out followed by search bar surveys to determine the area where passive venting of methane, carbon dioxide and …
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From Fault Dynamics to Seismic Hazard Assessment
… methodologies for the evaluation of seismic hazard and its related uncertainties, based on the study of active faults systems and dynamic modelling of the seismic cycle. I worked in particular on the probabilistic estimate of a fault‘s maximum magnitude earthquake and of its return period. …
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Landslide Hazard Assessment for Fayzabad District, Badakhshan Province, Afghanistan
… is one of those most impacted by landslide hazards in Afghanistan, accounting for 71% of all national landslide fatalities reported between 2012 and 2017. Necessary elevation data did not cover the very south of Fayzabad District; consequently, this study focuses on the northern two thirds …
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Fire Hazard Assessment for Highway Bridges with Thermal Mechanical Modeling
… for taking many bridges out of service. The hazard fire poses to bridges is a little studied risk unlike more common threats such as impact, scour and earthquake. Information on the rate of occurrence of bridge fires and the mechanisms of structural response of bridges subjected to fire are …
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Improving CPT-Based Earthquake Liquefaction Hazard Assessment at Challenging Soil Sites
… using CPTs to support more accurate liquefaction hazard assessment at challenging soil sites.
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Radionuclide concentrations and radiation hazard assessment in the soil of Otjiwarongo, Namibia
The natural radioactivity and associated hazards in soil samples collected from the town of Otjiwarongo, Namibia, have been studied by gamma ray spectroscopy. The town was divided into ten geographical areas and five soil samples were collected across each area. The samples were dried, homogenized …
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Advancing Rockfall Hazard Assessment through Data-Driven Modelling Based on Laboratory-Scale Experiments
… dynamics of rockfalls is critical for predicting hazards and mitigating risks in both natural and engineered environments. This research investigates the relationship between rock shape, release angle, and rockfall behavior, combining experimental analysis with machine learning (ML) modeling to …
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Improving Reno Earthquake Hazard Assessment Through a Ground-Motion Model Analysis and Paleoseismic Study
… two complimentary methods to assess earthquake hazards around Reno, Nevada. First, we evaluate the performance of the four NGA-West2 (2014) Active Crustal models, which are trained on a global dataset of ground motion recordings, in the context of the Reno area. We compare the NGA-West2 model …
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Application of Geographical Information Systems to Lahar Hazard Assessment on an Active Volcanic System
… a great potential to explore, model and map hazards, but are currently under-utilised for lahar hazard assessment. This research pioneered a three-tiered approach to lahar hazard assessment on Montserrat, West Indies. Initially, requirements of potential users of lahar information (scientists …
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Managing complexity in high-concentration flow modelling aimed at hazard assessment: numerical and practical aspects
… character, these phenomena represent a serious hazard in populated mountain areas, where reliable and effective hazard-management and -protection strategies are required. In mountain-hazard management, high-concentration flows modelling represents a key factor, since it allows to evaluate …
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Integrated field investigation, numerical analysis and hazard assessment of the Portillo Rock Avalanche site, Central Andes, Chile
This thesis reports a rock slope hazard investigation located in the Central Andes of Chile, where two significant rock mass wasting events were recognized. Dating using cosmogenic nuclide for ³⁶Cl showed that the deposits were post-glacial in age, corresponding to the Upper Pleistocene Portillo …
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Seismic Hazard Assessment for Mainland China Based on Spatially Smoothed Seismicity and Projected Sets of Ground Motion Models
The latest version of the Chinese seismic hazard map (CSHM) (i.e., fifth-generation CSHM) was developed based on the delineated seismic source model, which is defined based on geological and seismological information but also with some subjectivities. The results of the CSHM were presented in terms …
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A Hazard Assessment and Proposed Risk Index for Art, Architecture, Archive and Artifact Protection: Case Studies for Assorted International Museums
<p>This study proposes a hazard/risk index for environmental, technological, and social hazards that may threaten a museum or other place of cultural storage and accession. This index can be utilized and implemented to measure the risk at the locations of these storage facilities in relationship to …
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Volcano-tectonic history and volcanic hazard assessment of the 22.5-29°S segment of the Central Volcanic Zone of the Andes
Evaluating volcanic hazards typically focusses on single eruptive centres or spatially restricted areas, such as volcanic fields. Expanding hazard assessment across wide regions (e.g., large sections of a continental margin) has been rarely attempted, due to the complexity of integrating temporal …
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Digital documentation for integrated hazard assessment and sustainable management at dynamic natural heritage sites : the Giant's Causeway and Causeway Coast World Heritage Site
Habitats and species, landscapes and landforms adjust to contemporary environmental conditions. This intrinsic ability to adapt guarantees the diversity of ecosystem shapes, forms and functions and secures the variety of ecosystem services upon which all plants and animals depend. The capacity of …
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Hazard assessment of a mixture of pharmaceuticals detected in the upper Tennessee River of Daphnia magna and the determination of riverine zooplankton assemblage as it relates to chitobiase activity
In order to respond to the need for hazard assessment of environmentally relevant pharmaceutical mixtures, 21-d life cycle tests were performed on a mixture of pharmaceuticals found in the Tennessee River using Daphnia- magna as a surrogate. Endpoints measured were time to first brood, …
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