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 25 for “"Nuclear Safety"”.
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Reliability quantification of nuclear safety-related software
… study is to improve quality and reliability of safety-critical software in the nuclear industry. It is accomplished by focusing on the following two areas: Formulation of a standard extensive integrated software testing strategy for safety-critical software, and Development of systematic …
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Knowledge management as the next nuclear safety regulatory evolution
… is well known. This is also true in the nuclear sector where knowledge management has been discussed at the international level. However, the shifting landscape of the modern world of work presents risks to organizations. The nuclear sector has learned paradigm shifting lessons from large …
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Towards the reliability prediction of mechanical components for nuclear safety cases
… components. Such predictions are used in nuclear safety case documentation that is required for a nuclear site license to be granted. The methodology proposed is the use of front-end Finite Element fatigue analysis using the ANSYS software to effectively evaluate the mechanical reliability …
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Quantifying measurement uncertainties of MIT Research Reactor's new digital nuclear safety system
… to ensure the reliable and safe operation of a nuclear reactor. The MIT research reactor, (MITR-II), currently has outdated analog reactor period and power monitoring instruments that are difficult to read and in need of frequent adjustment. Replacing these old monitors with digital ones is an …
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Uncertainty quantification and calibration in nuclear safety codes using Gaussian process active learning
Inverse problems and inverse uncertainty quantification (UQ) are challenging issues when dealing with complex and highly non-linear functions. Methods have been developed to decrease the computational burden by using the Gaussian Process (GP) emulator model framework to approximate the input-output …
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Determining the optimal nuclear safety regulatory approach for South Africa's expanding nuclear power industry
… Africa is poised to expand significantly its nuclear power generation industry. Considering that the current South African nuclear safety regulatory approach is applied to regulate the operation and maintenance of one mature nuclear power plant, it is expected that significant adaptation of …
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Safety Culture Monitoring: A Management Approach for Assessing Nuclear Safety Culture Health Performance Utilizing Multiple-Criteria Decision Analysis
<p>Nuclear power plants are among the most technologically complex of all energy facilities. This complexity reflects the precision needed in design, maintenance and operations to harness the energy of the atom safely, reliably and economically. Nuclear energy thus requires consistent, high levels …
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Thermoelectric Energy Harvesting in Harsh Environments and Laser Additive Manufacturing for Thermoelectric and Electromagnetic Materials
… solutions, additive manufacturing, and nuclear safety technology, addressing critical challenges in sensor powering for extreme environments, energy harvesting, and materials fabrication. The research is divided into three key areas, each contributing to advancements in its respective …
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STAMP applied to Fukushima Daiichi nuclear disaster and the safety of nuclear power plants in Japan
… Japan Earthquake triggered an extremely severe nuclear accident at the Fukushima Daiichi Nuclear Power Plant. This thesis analyzes why the stakeholders could not prevent the Fukushima Daiichi nuclear disaster, and, with regard to the future nuclear safety in Japan, what the potentially hazardous …
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Epistemologies of safety : a comparative study of contemporary French and American reactor design practices
What makes for a safe nuclear power reactor? One of school of thought (that has significant traction within the academic nuclear engineering community) calls for using risk as a surrogate for safety. Safety then becomes a measurable quantity and can be specified in probabilistic terms and treated …
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A heart rate and skin response module for adaptive difficulty in virtual reality
… the Model for Attenuating Radiation in VR for Nuclear Safety Awareness (MARVIN) VR simulation for radiation attenuation to understand the implementation requirements, challenges, and opportunities. Finally, a preliminary study was conducted to understand usability and cognitive load.
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Comprehensive integration of safety, optimization, and regulation in ¹⁷⁷Lu-based theranostic radiopharmaceuticals: from production to dose assessment
… with a single radionuclide, merges two nuclear medicine fields, enhancing personalized targeted radiotherapy through internal dosimetry. Among these agents, the short-lived β-emitter ¹⁷⁷Lu is a promising theranostic agent for various oncological diseases. This research covers advanced …
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The consequence of station blackout in a nuclear power plant
The main purpose of the nuclear power plant is to generate electricity and to supply it to the grid and its auxiliaries systems. Since nuclear safety overrides the production of electricity and therefore nuclear power plants are designed to protect the public and the environment from the radiation …
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Novel thermoluminescent dosemeter for the measurement of the eye lens operational dose equivalent in mixed neutron-gamma radiation fields
… on ICRP 118 (2012) recommendations, the Canadian Nuclear Safety Commission amended the Radiation Protection Regulations in their recent document “REGDOC-2.7.2, Dosimetry, Volume I: Ascertaining Occupational Dose”, reducing the equivalent dose limit for the eye lens of a nuclear energy worker from …
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Modelling framework for assessing nuclear regulatory effectiveness
… robustness of national institutions involved in nuclear safety because of the role that the failing nuclear regulator had in the accident. The driving idea is to investigate how engineering techniques used in high-risk industries can be applied to institutions involved in nuclear safety to …
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Development and characterization of a high resolution portable gamma spectrometer
… Japan combined with the high demand to enhance nuclear safety and to minimize personal exposure to radioactive materials has a significant impact on research and development of radiation detection instrumentation. Currently, there is ample effort worldwide in the pursuit of radiation detection …
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Return on investment in nuclear security: regulations and physical security
Nuclear security is a crucial part of the nuclear industry, and therefore it is important to observe, research and improve its return on investment (ROI). Investments are made not only in the physical security itself, but also in the regulatory framework, and they should be studied holistically …
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Automation of the γ-ray spectrometry setup of the Environmental Radioactive Laboratory at NRF-iThemba LABS
… monitoring, radiation protection, and nuclear safety assessments. Conventional spectrometric analysis relies heavily on manual peak identification and expert interpretation, which can be time-consuming and subjective, particularly when dealing with complex environmental samples and …
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Investigation of mitigation and detection methods of Open Phase Conditions (OPCs) in nuclear power plants based on the operating experience
Safety in a Nuclear Power Plant (NPP) is of utmost importance, as the implications of a nuclear event have dire consequences on people, animals, and the environment and on unborn generations. This dissertation is about Open Phase Conditions (OPCs), which occur when one or two of the three …
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