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 28 for “"RPV"”.
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The development of a remotely piloted vehicle (RPV) with real-time position measurement (RtPM) for hazardous waste site characterization
This research was initiated to investigate the application of mobile robotics to hazardous waste site characterization, with the specific emphasis of employing the laser-based positioning measurement system developed by Spatial Positioning Systems, inc. (SPSi) for tracking a mobile robot and …
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Tolerance to barley yellow dwarf viruses in two pairs of sister oat lines
… yellow dwarf viruses (BYDV-PAV-IL and BYDV-RPV-IL) in two pairs of sister oat lines tolerant and susceptible to BYDV-PAV were measured by double antibody sandwish enzyme-linked immunosorbent assay (DAS-ELISA) and by purification. There were consistent relationships between expression of …
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Thermomechanische Modellierung eines Reaktordruckbehälters in der Spätphase eines Kernschmelzunfalls
… the lower head of the reactor pressure vessel (RPV) the possible failure modes of the RPV and the time to failure have to be investigated to assess the possible loadings on the containment. In this work, an integral model was developed to describe the processes in the lower plenum of the RPV. …
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Inferring Microstructural Change via Non-Contact Ultrasonic Property Measurements
Reactor pressure vessels (RPVs) are irreplaceable components in nuclear reactors that need to be consistently evaluated to ensure the safety of operation. With the push to extend reactor lifetimes in the US to 80 years in order to meet low-carbon energy demands, these RPVs need to be evaluated with …
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Transient Grating Spectroscopy: Compact System Geometry Developments and Improved Software
… outlines a study of reactor pressure vessel (RPV) coupons aimed at further understanding how properties evolve as a function of time in a reactor, as a step towards demonstrating that TGS can reliably detect if an RPV is fit for service. Ultimately, this work unveiled problems in the TGS …
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The design of a reduced diameter Pebble Bed Modular Reactor for reactor pressure vessel transport by railcar
… on the mode of transportation for large RPVs. In particular, the PBMR-400 design developed by PBMR Pty of South Africa uses an RPV with an outer diameter of 6.4 meters. Since current SCHNABEL railcars can only haul components up to 4.3 meters wide, the only other possibility for transport …
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Helium-Air mixing in simulated reactor cavities of Very High Temperature Reactors
… pressure between the reactor pressure vessel (RPV) and cavities equalize. At this point, it is possible for air to flow back into the RPV, where it can react exothermally with high temperature graphite and result in damages to the reactor components. This research investigates the spatial …
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Genetics of reaction to peanut mottle virus in soybeans
… by a single recessive gene designated rpv₂. Evidence based on segregation in F₂ populations was also presented that indicates the presence of three other dominant genes for resistance to PMV-S/V74S. The three dominant genes are designated Rpv₁ (first reported by workers in Georgia), …
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The Effect of Morphology on Carrier Dynamics in Solution Processed Solar Cells
… (MIS-CELIV), and Resistance Photovoltage (RPV) are detailed.</p> <p>The photo-CEILV technique is used to probe P3HT devices of varying molecular weights. This material is known to have a microstructure which varies depending on the molecular weight of the polymer. By measuring samples over …
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Radiation Shielding Design and Radioactive Waste Assessment of Horizontal Compact High Temperature Gas-Cooled Reactor
… activity levels. The reactor pressure vessel (RPV) and RCCS tubes made of carbon steel were characterized as a class A waste component. The graphite reflector components are characterized as Class C level waste. Furthermore, this work discusses the neutron irradiation effects and their impact …
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Lymph-targeted intradermal delivery of antiretroviral agents via dissolving polymeric microarray patches
… of the antiretroviral agents rilpivirine (RPV) and cabotegravir (CAB) <i>via</i> dissolving MAPs. RPV and CAB were formulated as nanocrystals and subsequently incorporated into MAPs with a strong focus on increased lymphatic uptake. MAP micromoulds were customised for reproducible and …
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Desarrollo y validación de una nueva técnica de ensayo no destructivo basada en el potencial termoeléctrico para el conocimiento del envejecimiento de los aceros de vasija de reactores nucleares
La vasija de presión del reactor (RPV) en los reactores de agua ligera (LWR) es un componente clave para la operación segura de una central nuclear. La vasija de presión forma parte de la contención del reactor y su vida delimita, en gran medida, la vida de la planta. En los materiales de la PRV el …
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Design of a Scaled Flight Test Vehicle Including Linear Aeroelastic Effects
… geometrically scaled remotely piloted vehicle (RPV) serves as the initial design point. The aeroelastic response of the final design is verified against the response of the full-scale model. Reasonable agreement is seen in both aeroelastic damping and frequency for a range of flight velocities, …
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Carbon Nanotube Based Dosimetry of Neutron and Gamma Radiation
… components such as the reactor pressure vessel (RPV) become embrittled by neutron irradiation, reducing their capability to resist crack growth and increasing the risk of catastrophic failure. The current dosimetry approaches used in these high flux environments do not provide real-time …
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Design methodologies and prototyping of a starter-geenrator for an unmanned aerial vehicle (UAV) for civil applications
… Vehicle), ROA (Remotely Operated Aircraft), and RPV (Remotely Piloted Vehicle), [1]. UAVs are to be understood as uninhabited and reusable motorized aerial vehicles [2], which are remotely controlled, semi-autonomous, autonomous, or have a combination of these capabilities, and that can carry …
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Design and Evaluation of Geometric Nonlinearities using Joined-Wing SensorCraft Flight Test Article
… flight test plans for the aeroelastically tuned RPV.
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INFLAMMATORY AND T-CELL HOMEOSTASIS PARAMETERS IN DUAL AND TRIPLE COMBINATION ANTIRETROVIRAL THERAPY (CART) FOR HIV INFECTION
… regimen cabotegravir plus rilpivirine (CAB+RPV). By providing deeper insights into how different treatment strategies affect immune activation and inflammation, this study aims to refine therapeutic approaches and mitigate long-term complications in people living with HIV.
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Development of a Novel Detector Response Formulation and Algorithm in RAPID and its Benchmarking
… VENUS-3 experimental Reactor Pressure Vessel (RPV) neutron fluence calculation benchmark problem; (3) RPV dosimetry using the Three-Mile Island Unit-1 (TMI-1) commercial reactor; and (4) A Dry storage SNF cask external dosimetry problem. The results show that dosimeter/detector response or dose …
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UAS as an Inventory Tool: A Photogrammetric Approach to Volume Estimation
… vehicles (UAV) or remotely piloted vehicles (RPV), are associated with unmanned aircraft either controlled by a pilot on the ground or pre-programmed with specific flight paths. Small UASs have seen a massive increase in public interest in recent years as hobbyist platforms; they are, however, …
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