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 617 for “"Crash"”.
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Natural Time and Crash Risk
… of return distributions and financial crashes together. Specifically, I aim to identify the determinants of non‐normality in a high frequency setting and utilize these variables to forecast financial crashes. To this effect, multiple instruments and time horizons are considered. The …
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Methodology for Determining Crash and Injury Reduction from Emerging Crash Prevention Systems in the U.S.
… or mitigate the negative consequences of traffic crashes, automakers are developing active safety systems, which aim to prevent or mitigate collisions. These systems are expensive to develop and as a result automakers and regulators are motivated to forecast the potential benefits of a proposed …
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Crash severity modeling in transportation systems
Modeling crash severity is an important component of reasoning about the issues that may affect highway safety. A better understanding of the factors underlying crash severity can be used to reduce the degree of crash severity injury, locate road hazardous sites, and adopt suitable countermeasures. …
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Replication-aware file-system crash consistency
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-05-01
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Certifying a crash-safe file system
… data loss, especially in the face of system crashes. FSCQ is the first file system that (1) provides a precise specification for the core subset of POSIX file-system APIs; and the APIs include fsync and fdatasync, which allow applications to achieve high I/O performance and crash safety, and …
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Crash modeling of a light composite aircraft
A thesis submitted in fulfilment of the requirements of the Master’s degree in technology to the Department of Mechanical Engineering at the Durban University of Technology, 2014.
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Crash Analysis of Degraded Concrete Containment Structures
Dry storage casks are composite structures made of an inner steel liner and a concrete outerpack that houses the basket of the spent nuclear fuel bundle. The concrete of dry cask structures will degrade due to the natural aging and the environmental effect shrinkage, creep, heat transfer, moisture …
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Sensor Integration for Low-Cost Crash Avoidance
… development of sensor integration for low-cost crash avoidance for over-land commercial trucks. The goal of the project was to build and test a system composed of low-cost commercially available sensors arranged on a truck trailer to monitor the environment around the truck. The system combines …
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An Analysis of Emergency Vehicle Crash Characteristics
Crash data suggests that intersections are areas producing conflicts among the various road users because of entering and crossing movements. Traffic signal control systems may not always be sufficient in preventing collisions at intersections between emergency and other vehicles. The Firefighter …
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Analysis Of Various Car-truck Crash Types Based On Ges And Fars Crash Databases Using Mutlinomial And Binary Logit Model
… 400,000 trucks are involved in motor vehicle crashes. Crashes involving a car and truck have always been a major concern due to the heavy fatality rates. These types of crashes result in about 60 percent of all fatal truck crashes and two-thirds of all police-reportable truck crashes. …
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Safety Investigation of Crash Rates During Hurricane Evacuations
<p>This study aimed to investigate crash rates across four distinct periods—evacuation, re-entry, emergency, and non-emergency—during Hurricanes Matthew (2016), Irma (2017), and Michael (2018). A notable gap in existing research pertains to understanding crash rates during these critical phases of …
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Geomagnetic Compensation for Low-Cost Crash Avoidance Project
… The magnetic sensor is a part of a low-cost crash avoidance system by Stephane Roussel where the magnetic sensor was used to detect cars passing when it was mounted to a test vehicle. However, the magnetic sensor’s output voltage varied when it changed orientation with respect to the Earth’s …
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After the crash : reclaiming Bangkok's city of ghosts
… lending and speculative construction, the crash left over five hundred 'interrupted' projects - buildings upwards of fifty storeys - standing as unwelcome monuments to global capital run amok. This project proposes reclamation strategies that would enable 'small agents' to inhabit and …
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GoTxn: Verifying a Crash-Safe, Concurrent Transaction System
Bugs related to concurrency and crash safety are infamous for being subtle and hard to reproduce. Formal verification provides a way to combat such bugs through the use of machine-checked proofs about program behavior. However, reasoning about concurrency and crashes can be tricky, especially when …
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Performing Network Level Crash Evaluation Using Skid Resistance
Evaluation of crash count data as a function of roadway characteristics allows Departments of Transportation to predict expected average crash risks in order to assist in identifying segments that could benefit from various treatments. Currently, the evaluation is performed using negative binomial …
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Development, Calibration, and Validation of a Finite Element Model of the THOR Crash Test Dummy for Aerospace and Spaceflight Crash Safety Analysis
… test devices (ATDs), commonly referred to as crash test dummies, are tools used to conduct aerospace and spaceflight safety evaluations. Finite element (FE) analysis provides an effective complement to these evaluations. In this work a FE model of the Test Device for Human Occupant Restraint …
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Improving commercial vehicle crash data quality in West Virginia
… identify methods to improve commercial carrier crash data in West Virginia including coal trucks. All organizations and agencies involved with commercial carrier safety need ready access to basic data describing the crash-involved operator, vehicle, and environment. Such data are necessary to …
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