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 123 for “"hazard analysis"”.
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Guidance Index for Shallow Landslide Hazard Analysis
… landslides are one of the most frequent hazards on slanted terrains. They lead to considerable economic losses and fatalities worldwide. Intense storms with high-intensity and long-duration rainfall have high potential to trigger rapidly moving soil masses due to changes in pore water …
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Tool-assisted hazard analysis and requirement generation based on STPA
… support of appropriate techniques and tools for hazard analysis and requirement engineering. Systems Theoretic Process Analysis (STPA) is a hazard analysis technique that has been developed at MIT. It is based on systems and control theory and aims at capturing more causal factors leading to …
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Accident analysis and hazard analysis for human and organizational factors
… regime and safety can be compromised. Accident analysis is conducted to discover the reasons why an accident occurred and to prevent future accidents. Safety professionals have attributed 70-80% of aviation accidents to human error. Investigators have long known that the human and organizational …
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Regionally adaptable ground-motion Prediction Equations (GMPEs) for seismic hazard analysis
… associated with the current practice of seismic hazard analysis. Due to the fre- quent use in engineering design practices the GMPEs are often derived for response spectral ordinates (e.g., spectral acceleration) of a single degree of freedom (SDOF) oscillator. The functional forms of such GMPEs …
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Passive Seismic Tomography and Seismicity Hazard Analysis in Deep Underground Mines
… forecast rock burst potential and other seismic hazards, which are influenced by mining. Recorded by seismic networks in multiple underground mines, arrival time of seismic waves and locations of seismic events are used as sources of tomographic imaging survey. An initial velocity model is …
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Active STPA : integration of hazard analysis into a Safety Management System Framework
… describes a new approach to integrate a hazard analysis into Safety Management Systems (SMS). This new engineering process guides safety managers and analysts in the identification of a migration toward states of higher risk. The solution is the use of an active version of STPA …
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STPA Hazard Analysis of Human Supervisory Control of Multiple Unmanned Aerials Systems
… can focus on supervisory control. However, hazard analyses to identify related safety concerns have largely used traditional hazard analysis techniques that cannot handle the level of complexity of these systems and none can provide recommendations for the early stages of system development. …
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Quantification of Uncertainties for Conducting Partially Non-ergodic Probabilistic Seismic Hazard Analysis
… site effects must be incorporated into the hazard analyses. This research focuses on the challenges specific to conducting partially non-ergodic site-specific PSHA using recorded ground motions or site response analysis. The main challenge in estimating local site effects using recorded data …
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Karst hazard analysis towards the development of predictive karst models for southern Ontario
An investigation into karst hazard in southern Ontario has been undertaken with the intention of leading to the development of predictive karst models for this region. The reason these are not currently feasible is a lack of sufficient karst data, though this is not entirely due to the lack of …
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Extending and automating a systems-theoretic hazard analysis for requirements generation and analysis
Systems Theoretic Process Analysis (STPA) is a powerful new hazard analysis method designed to go beyond traditional safety techniques-such as Fault Tree Analysis (FTA)-that overlook important causes of accidents like flawed requirements, dysfunctional component interactions, and software errors. …
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Developing a Fuzzy Expert System to Examine Hazard Analysis in The United States Army
… RM worksheets were then evaluated based on the hazards they identified for each hazard category. A fuzzy expert system was developed to evaluate the lieutenants' performance in assessing the different hazards. The output results were then evaluated using the two-step cluster process and one way …
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Seismic hazard analysis and seismic slope stability evaluation using discrete faults in northwestern Pakistan
… mitigating structures based on proper seismic hazard and seismic slope stability analyses. This study presents the methodology and results of seismic hazard and slope stability analyses in northwestern Pakistan. The first part of the thesis describes the methodology used to perform …
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Context in the risk assessment and hazard analysis of digital instrumentation and control systems
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1999.
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APPLYING HAZARD ANALYSIS CRITICAL CONTROL POINT (HACCP) PRINCIPLES TO MITIGATE AFLATOXIN CONTAMINATION IN MAIZE PRODUCTION IN GHANA
… Ghana's agricultural sector. This study uses the hazard analysis critical control point (HACCP) principle to estimate the cost and benefit of aflatoxin prevention in maize production. It also identifies critical control points (CCPs) across the maize value chain at the producer level. This helps …
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A microbiological decision tree approach for performing a hazard analysis and its relationship to microbiological risk analysis
… deaths. There is a developing consensus that the Hazard Analysis and Critical Control Point (HACCP) concept is the most effective and rational means of assuring food safety from harvest to consumption. The first step in the application of the HACCP concept involves conducting a hazard analysis. It …
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Application of hazard analysis critical control point (HACCP) concept to study cattle slaughterhouse hygiene and Carcass contamination in Zambia
The Hazard Analysis Critical Control Point (HACCP) concept was applied for the first time to four Zambian cattle slaughterhouses to study slaughterhouse hygiene and bacterial contamination of carcasses. Swabs were collected from carcass surfaces and also from the following environmental surfaces, …
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Application of hazard analysis critical control point (HACCP) concept to study cattle slaughterhouse hygiene and Carcass contamination in Zambia
The Hazard Analysis Critical Control Point (HACCP) concept was applied for the first time to four Zambian cattle slaughterhouses to study slaughterhouse hygiene and bacterial contamination of carcasses. Swabs were collected from carcass surfaces and also from the following environmental surfaces, …
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Systems Theoretic Hazard Analysis (STPA) applied to the risk review of complex systems : an example from the medical device industry
Traditional methods to identify and document hazards, and the corresponding safety constraints, are lacking in their ability to account for human, software and sub-system interactions in highly technical systems. STAMP, a systems-theoretic accident causality model, was created to overcome these …
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Systems-theoretic process analysis and safety-guided design of military systems
… complex software enabled systems demand a new hazard analysis and safety-guided design technique in order to meet stringent safety standards and expectations. System Theoretic Process Analysis (STPA) proves to be a powerful tool to identify, describe and help mitigate hazards from the earliest …
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