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 1030 for “"Disruptions"”.
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The pathophysiological mechanisms underlying metamemory disruptions
… focused on establishing an association between disruptions to metacognition and psychopathology, the origins of inter-individual differences in metacognition are yet to be determined. The Metacognitive Model of PTSD proposes that maladaptive metacognitive beliefs are activated following exposure …
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Firms' Resilience to Supply Chain Disruptions
… related to firms' resiliency to supply chain disruptions. The first paper seeks to evaluate the effects of supply chain disruptions on firms' performance by using a recent dataset of supply chain disruptions. To this end, we analyzed operating and stock market performances of over 300 firms …
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Multi-modal public transport modelling under traffic disruptions
… framework simulates spatial-temporal impacts of disruptions on traffic states, including delay, travel time, flow and density. Furthermore, a dynamic traffic assignment model captures adaptive mode and route shift behaviour under disruptions. The proposed methodology provides a comprehensive tool …
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Traffic impact assessment and mitigation strategies for disruptions
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI SYSTEM AT AUTHOR'S REQUEST.] This dissertation research focuses on modeling traffic conditions affected by disruptive events such as work zones, incidents, and hurricanes. Using a combination of field data and simulation experiments, this research …
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Contract Design for Collaborative Response to Service Disruptions
… be incentivized to identify and report network disruptions, competition for scarce emergency resources and the required investment in understanding their own exposure may incentivize clients to deliberately miscommunicate with the vendor.
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Evaluating upstream supply chain disruptions with partial availability
… have increased the prevalence and severity of disruptions to upstream supply. Disruptions to upstream supply can delay and potentially halt the flow of necessary materials and/or services to purchasing firms, often resulting in severe operational and financial losses. This has created a growing …
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Disruptions and Robustness in Air Force Crew Scheduling
… optimization problem. Further, last-minute disruptions and uncertainties in factors like flight duration and pilot availability motivate the need for more robust schedules. Traditionally, this has been a manual, tedious, and time-consuming process. In this thesis, we leverage optimization …
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Supply chain disruptions : managing risks vs. managing crises
This thesis looks at two back-to-back disruptive supply chain events, one due to a sole-supplier's bankruptcy and the other caused by Hurricane Rita, that occurred at a specialty chemical company, and uses these examples to demonstrate how managing crises is more costly than managing risks. In …
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Rescheduling of Airline Pilot Training Activities Following Disruptions
… and a series of experiments involving random disruptions to original schedules were used to analyze the solution approaches. For the data sets analyzed, the RAFF algorithm outperformed other methods with respect to the majority of the measure collected. Analysis performed on the amount of …
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Risk management processes for managing disruptions in supply chains
… adopt formal processes for managing supply chain disruptions. Disruptions are usually managed on a reactive basis by ‘fighting fires’ and proactive measures are based on the company’s experience in handling past disruption events. The water utilities company uses a formal RM process for managing …
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Risk from network disruptions in an aerospace supply chain
… methods for determining the effects of risk from disruptions using an aerospace supply chain as the example, primarily through the use of a computer simulation model. Uncertainty in the current marketplace requires managers to be cognizant of the adverse impact of risk on their company's …
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Optimizing interventions for the treatment of vascular flow disruptions
… New interventions to address vascular flow disruptions, such as transcatheter aortic valve replacements (TAVR), have significantly improved quality of life and life expectancy. However, these emerging technologies involve unique delivery modes and anchoring mechanisms that require the …
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Government-led contingency planning for urban transit service disruptions
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1982.
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A process for improving transit service management during disruptions
… ability to avoid and respond to service disruptions, thus improving passengers' experiences. The framework and process can be applied to any transit service disruption case on high or low frequency bus and rail service. Pre-planning and policy changes were identified as the primary means …
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Modeling Project Scheduling and Management Systems Involving Uncertainties and Disruptions.
… Management Systems Involving Uncertainties and Disruptions.
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NETWORK OPTIMIZATION TO MODEL RANDOM RISK OF SUPPLY CHAIN DISRUPTIONS
… However, supply chains are subject to disruptions that slow materiel movements throughout the network, and these disruptions may severely hinder the readiness of ships operating in distant theaters. A common culprit for peacetime supply chain disruptions is adverse weather, which is …
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Reconciling Discontinuities and Disruptions: The Construction of an Integrated Typology
<p>Radical innovations are often characterized by a rapid shift from one dominant design to another. The theories of discontinuous and disruptive innovation present two important and independent explanations for why these shifts occur. This research tests the usefulness of combining these two …
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Food Security and Crises: Analyses of Disruptions in Food Systems
Food security remains a critically important issue, addressing one of the most fundamental human needs and characterized by a challenging cyclical pattern. Despite significant advances, each time stability seems within reach, new crises emerge to undermine progress. However, the efforts to enhance …
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Locating and Protecting Facilities Subject to Random Disruptions and Attacks
… protect networked infrastructure systems from disruptions by developing new mathematical models and solution techniques and using them to help decision-makers by discovering new decision-making insights.</p> <p>Several gaps exist in the body of knowledge concerning how to design and protect …
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