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 15 of 15 for “"POCS"”.
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POCS Augmented CycleGAN for MR Image Reconstruction
… method: Projection Onto Convex Sets (POCS). Experiments were then performed to evaluate the method by comparing it to several existing state-of-the-art methods. Our results demonstrate that the proposed method outperformed the current state-of-the-art in terms of higher peak …
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Groundwork and Principles for Applied Conservatism
… to help establish principles of conservatism (POCs), consistent with Burke and Oakeshott, that might be acceptable to as wide a range of contemporary self-identifying conservatives as possible, and capable of supporting safe and reasonable decisionmaking and action-guidance in a world which …
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Approximate signal reconstruction from partial information
… The method of Projection Onto Convex Sets (POCS) is used to reconstruct an approximation to the MBR signal using the side information. Thus, any number of constraints may be used as long as they form closed and convex sets and the side information is a priori knowledge required to implement …
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The provision and use of contraception amongst antenatal and postpartum women in a rural area of the Eastern Cape
… injectible progestogen-only contraceptives (POCs) have typically been administered after delivery to women choosing to use these methods. A series of studies arose in response to the draft South African National Contraceptive Guidelines (1999), which recommended that women wishing to use the …
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Real-time adaptive circuitry to support simultaneous radar and communications.
… – dilated projections onto convex sets (D-POCS) – is proposed which can increase the versatility and flexibility of DM. D-POCS is also shown to be a generalization of the widely studied convex optimization. In addition, a fully reconfigurable array topology and optimization methodology is …
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Implementation of Iterative Reconstruction of Images from Multiple Bases Representations
… iterative method of Projection onto Convex Sets (POCS). Many constraints that form convex sets are reviewed and examined. Due to the high distortion at the block boundaries, some constraints are introduced particularly to reduce artifacts at the boundaries. Some constraints add energy to the …
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Developing and evaluating a partition-cavity solar thermochemical reactor for syngas production via computational fluid dynamics
… different periodic open cellular structured (POCS) catalysts were studied in the solar thermochemical reactor for the dry reforming of methane (DRM) process. The heat transfer results revealed that the conduction of the strut is dominant for the temperature distribution in the catalyst region. …
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Understanding reaction pathways leading to tetrahedral organic cages via alkyne metathesis
Porous organic cages (POCs) have garnered great interest due to their well-defined structural porosity and solution processability that provide advantageous properties for wide ranges of applications. Recently, the feasibility of constructing various POCs via multitopic dynamic covalent chemistry …
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Ús de l'entorn virtual LAMS per a la creació de seqüències didàctiques col·laboratives i personalitzables
… fer extensiu l'ús d'aquest entorn a persones amb pocs coneixements de programació i relacionades amb la pedagogia i el disseny instruccional. La investigació portada a terme ha permès a un grup d'investigadors de la Universitat Oberta de Catalunya (UOC) aprofundir en el disseny instruccional de …
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Anàlisi de les alternatives de mobilitat sostenible en ciutats de mida mitjana. El cas d’Olot, La Garrotxa
… de ciutat-jardí perifèriques, poc denses i amb pocs equipaments, condicionen la tria modal i les tendències de transport, que cal invertir davant la crisi climàtica i de recursos actual. Degut a les baixes freqüències i la poca coordinació entre línies, els desplaçaments en transport públic …
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Development of Novel Cardiac CT Methods
… an extended projection onto convex sets (POCS) based method and studied the contributions of individual constraints. Using the compressive sensing theory, it has recently become possible to reconstruct a piece-wise constant ROI using interior tomography. The ability of a total-variation …
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Sense passar-se de la ratlla la normalització dels consums recreatius de drogues
… compatibles amb les responsabilitats, generen pocs problemes i els consumidors es mantenen normalitzats socialment. Per tant, la normalització és cada vegada més accentuada i més si es té en compte que per qüestions generacionals, cada vegada hi ha més població adulta que s'ha relacionat amb …
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Cross-linguistic influence in the acquisition of Brazilian Portuguese as a third language
… DAT case marker Juan.’ DOCs can alternate with POCs in Spanish and Portuguese as well, but there are cross-linguistic differences not only in grammatical encoding but also in productivity of DOCs in English, Spanish and BP. First, this study provides an analysis of properties of the dative …
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Assessing the uncertainties of Radar and LiDAR derived digital elevation information over static and dynamic terrain
The satellite era brought the advantages of obtaining fast, reliable, and repeated measurements over time on a global scale. Digital Elevation Information is a necessity for any scientific and engineering project that involves terrain, urban planning, and monitoring of natural hazards. The accuracy …
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Monitoring of Persistent Organic Pollutants (POPs) in marine biota from the Catania Gulf (Sicily, Italy) and development of new sensitive analytical methods for their detection
… biphenyls (PCBs), organochlorine pesticides (POCs), and polycyclic aromatic hydrocarbons (PAHs), in environmental matrices (biota, volcanic ashes and seawater), as well as on the monitoring of these pollutants in Mullus Surmuletus of the Catania Gulf (Sicily, Italy) and on the evaluation of …