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 63 for “"SFR"”.
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War on architecture : scenographic strategies in tracing post-war home in the former SFR Yugoslavia
This research investigates domestic spaces in the former Socialist Federal Republic of Yugoslavia following their destruction and abandonment in the wars of the 1990s. It establishes case studies and frameworks for examining sites according to the significance of ‘home’ - before, during and after …
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A strategy for transition from a uranium fueled, open cycle SFR to a transuranic fueled, closed cycle sodium cooled fast reactor
… mode-a uranium startup fast reactor (USFR)-decouples fast reactor commercialization from fuel reprocessing and enables transition to a recycle mode once the technology becomes available and economic. The present work investigates the optimal strategy for recycling spent fuel from …
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Eating waste : a critical evaluation of surplus food redistribution as solution to food waste and food insecurity
… through the lens of surplus food redistribution (SFR). Ethnographic research compared two UK redistribution organisations’ models, framings, practices and political modalities. Additionally, international comparisons involved research with SFR organisations in North America, where such practices …
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Camera Spatial Frequency Response Derived from Pictorial Natural Scenes
… the edge-based Spatial Frequency Response (e-SFR), a sister measure of the MTF designed for measuring discrete systems. Many modern camera systems incorporate non-linear, highly adaptive image signal processing (ISP) to improve image quality. As a result, system performance becomes scene and …
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Thermal-hydraulic analysis of innovative fuel configurations for the sodium fast reactor
The sodium fast reactor (SFR) is currently being reconsidered as an instrument for actinide management throughout the world, thanks in part to international programs such as the Generation-IV and especially the Global Nuclear Energy Partnership (GNEP). The success of these programs, in particular …
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The economics of alternative fuel cycles on sodium-cooled fast reactors and uncertainty and sensitivity analysis of cost estimates
… to create a baseline capital cost model for the SFR in which case studies were performed to identify ways to decrease the capital costs while maintaining safety and performance. This thesis expands on the capital cost model to include uncertainty analysis, as well as performing qualitative cost …
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Estimating the stellar masses of NLS1 galaxies using multifrequency data
… this work estimated star formation rates (SFR), AGN luminosities, radio luminosities and Eddington ratios for the sample. The average SFR was approximately 25 M_⊙/yr and strong correlations were found between SFR and radio luminosity (Spearman correlation of 0.91–0.92), supporting the …
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Used Nuclear Fuel Actinide Management in a Sodium- Cooled Heterogeneous Innovative Burner Reactor
… of an innovative sodium-cooled fast reactor (SFR) for minor actinide (MA) destruction in used nuclear fuel (UNF). The destruction of MAs would reduce the radiotoxicity of the discharged waste to less than 25% of the once-through cycle after 100 years. The design can be achieved within the …
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Stochastic and deterministic models for dense granular flow
… deformation law. The Stochastic Flow Rule (SFR): This work models granular flow as a sequence of localized collective grain displacements. As in the Spot Model for drainage (Bazant 2001), grain clusters move as dictated by "spots" which travel through the material as biased random-walkers. …
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Global and Local Properties of Noninteracting Irregular Galaxies
… of 26 irregulars with high star formation rates (SFR) and 17 comparison objects. Global properties of the systems were explored through the stellar and gaseous contents and abundances obtained from intermediate band filter photometry, large aperture spectrophotometry, small aperture …
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Velferð í veikindum : réttindi vinnandi fólks í alþjóðlegu samhengi
… saman. Þau félög sem fyrir valinu urðu eru: VR, SFR, Efling, Kennarasamband Íslands, Verslunarmannafélag Skagafjarðar (VS) og Eining-Iðja. SFR og VR lögðu síðan til raunupplýsingar til að hægt væri að kafa dýpra og skoða raunverulegar greiðslur. Einnig var gerð viðhorfskönnun meðal félagsmanna …
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Star formation and environment of galaxies
… particularly their star formation rate (SFR) in the critical intermediate region on the periphery of rich galaxy clusters. Using photometric and spectroscopic data from the Sloan Digital Sky survey (SDSS) we show how common observables, such as colour, SFR, and SFR/M* are influenced when …
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The THESAN Project: ionizing escape fractions of reionization-era galaxies
… esc on the effective star-formation rate (SFR) surface density defined as the SFR per gas mass per escape area. The variation in halo escape fractions decreases for higher mass haloes, which can be understood from the more settled galactic structure, SFR stability, and fraction of …
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The Evolution of and Starburst-AGN Connection in Luminous and Ultraluminous Infrared Galaxies and their Link to Globular Cluster Formation
… starbursts and AGN (e.g. star formation rate (SFR), L[O III], optical D parameter, D4000, and EW(Hδ)) are independent of one another, ensuring that no biases affect correlations between these properties and objects' locations on the BPT diagrams. I then derive evolutionary paths on the BPT …
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The Scatter Dependence of the Spatially-Resolved Star Formation Main Sequence Relation
… the impact of various star formation rate (SFR) and stellar mass transformations on the observed SFMS. Ranging from 10^6 to 10^11.5 M⊙ and derived from colour to mass-to-light ratio methods for mid-infrared bands, the stellar masses are internally consistent within their range of …
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Development of thermodynamic cycles for sodium-cooled-fast reactors.
… and HTCs, a Sodium-cooled Fast Reactor (SFR) - one of the six concepts considered under the Generation IV International Forum (GIF), was selected because it is the most experienced reactor technology among all of the proposed GEN-IV reactor concepts. Moreover, with depleting uranium …
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Understanding the Effect of Oxygen on the Degradation of 316L in Liquid Sodium
… are essential. Sodium-cooled fast reactors (SFRs) offer the necessary power requirements, integration with renewable energy systems and minimal nuclear waste generation. However, the reactivity of the liquid sodium coolant and high operating temperatures pose a significant risk to plant …
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An evaluation of digital radiography in the imaging of the neonatal chest.
… a test object using Screen Film Radiography (SFR) and CR at the exposures used in the Neonatal Unit (NNU), and at half this exposure. The CR images were then assessed on both hard copy and soft copy and compared to SFR which is still considered the gold standard for neonatal chest radiography. …
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Applying risk informed methodologies to improve the economics of sodium-cooled fast reactors
… management, the Sodium-Cooled Fast Reactor (SFR) is being developed. The main drawback has been its high capital and operating costs in comparison with traditional light water reactors. In order to compete, the SFR must be shown to be economically competitive. This study makes use of the …
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Ökonomische Bedeutung und Management von Naturrisiken im Wald : theoretische Grundlagen und empirische Analysen nach dem Sturm Lothar in der Schweiz
… Die Einkommensverluste betragen 13 bis 284 Mio. SFr., wobei letzterer Wert für das plausibelste Szenario errechnet wurde. Die berechneten Vermögenswirkungen variieren von einem Verlust von 1037 Mio. SFr. bis zu einer theoretischen positiven Vermögenswirkung von 18 Mio. SFr. Der Vermögensverlust …
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