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 40 for “"PBR"”.
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Evaluation of PBR in Breast Cancer
… is the Peripheral Benzodiazepine Receptor: PBR). PBR expression is up-regulated in several cancers, and in many there has been a correlation drawn between increased malignancy and protein expression levels. Therefore, developing PET methodologies to apply for PBR imaging could be an …
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Photobioreactor Design for Improved Energy Efficiency of Microalgae Production
… was to investigate a new photobioreactor (PBR) design for microalgae production that retains the typical advantages of existing tubular PBRs while reducing power consumption by providing simultaneous culture circulation and gas exchange with airlift alone and no centrifugal recirculating …
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Structure-based Optimizations for Sparse Matrix-Vector Multiply
… introduces two novel techniques, OSF and PBR, to improve the performance of Sparse Matrix-vector Multiply (SMVM) kernels, which dominate the runtime of iterative solvers for systems of linear equations. SMVM computations that use sparse formats typically achieve only a small fraction of …
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An interpretative phenomenological analysis of counselling psychology trainees experiences of practice-based research training
… experiences of practice-based research training (PBRT). Its introduction asks about the possible aims of counselling psychology research in the United Kingdom (UK). Controversies surrounding evidence-based practice(s) contextualise this question; practice-based research (PBR) is offered as one …
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Macrohabitat factors affecting distribution patterns of freshwater mussels in the Clinch River (Virginia, Tennessee)
… mussel density transect groups. Percent bedrock (PBR) (p>F=0.002), d50 particle size (p>F=0.03), and mean depth (MDEP) (p>F=0.11) were the most useful predictors (cumulative average squared canonical correlation (ASCC) = 0.30) when SDA was performed on all transects (n = 66). The ASCC values …
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Choreographic Research Combining Contact Improvisation and the Alexander Technique: Somatic, Practice-Based-Research, and Ethnographic Inquiry
Somatic practices, practice-based-research (PBR) and ethnography contextualize this choreographic research that moves from the studio/stage to the desk. My project investigates how integrating the Alexander Technique (AT) and Contact Improvisation (CI) principles, combined with theoretical studies …
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Studies of the Ethanol Steam Reforming Reaction in a Membrane Reactor
… of 69 % compared to a packed-bed reactor (PBR) were obtained in a MR fitted with a membrane with the highest hydrogen permeance. An operability level coefficient (OLC), defined as the ratio of the hydrogen permeation and hydrogen formation rates, was suggested as a useful tool for …
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The characterization of MHC Class II genes of the Nile crocodile (Crocodylus niloticus) : an investigation of mechanisms that shape genetic diversity in natural populations
… substitutions within the peptide-binding region (PBR) of MHC genes further supports the hypothesis that positive selection enhances amino acid diversity in the PBR, such that natural selection will favour PBR diversity in natural populations. This study investigated mechanisms that shape genetic …
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Primary Factors Affecting Growth of Microalgae Optimal Light Exposure Duration and Frequency
… contained two parts was tested. One part of the PBR was exposed to the light, while another part of the PBR was placed underground without light. Different daily exposure durations (8 hours, 7 hours, 6 hours, and 5 hours) and different exposure frequencies (53 cycles/hour, 70 cycles/hour, 88 …
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The Case for Quantum State Realism
… outcomes. The Pusey Barrett and Rudolph (PBR) theorem places serious constraints on the former family of interpretations. I identify an important explanatory gap in the latter sort of interpretation. In particular, if the quantum state is a subjective representation of beliefs about future …
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Fabrication of Ultrathin Palladium Composite Membranes by a New Technique and Their Application in the Ethanol Steam Reforming for H₂ Production
… Co-Na/ZnO catalyst both in a packed bed reactor (PBR) and in a MR equipped with the Pd or Pd-Cu membrane to evaluate the benefits of employing membranes. For all studies, ethanol conversion and hydrogen product yields were significantly higher in the MRs compared to the PBR. Average ethanol …
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Investigating the Effects of Sparger Design in Column Photobioreactors
… designs of rectangular column photobioreactors (PBRs) are changed based on the sparger types, spacings, and positions. Computational Fluid Dynamics (CFD) is used to predict fluid flow patterns, thermal profiles and additional hydrodynamic and heat transfer parameters in these photobioreactors. …
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Multidimensional Spatial Characterization of Plant Invasions in 'El Pinacate y Gran Desierto de Altar' Biosphere Reserve
… y Gran Desierto de Altar' Biosphere Reserve (PBR) in northwestern Sonora, Mexico. This approach combined genetic algorithms, geographic information systems, field methods, statistical analysis, and remote sensing modeling at multiple spatial and temporal scales to predict and test the current …
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Waste characteristics of spent nuclear fuel from a pebble bed reactor
… gas cooled, reactor with a pebble bed core (PBR) and a pressurized water reactor (PWR). There are three significant differences which impact the disposal characteristics of PBR spent pebble fuel from PWR spent fuel assemblies. Pebble bed fuel has bum-up as high as 100,000 MWD(t)/MTHM and …
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The effects of resonance decays on particle ratios and momentum spectra
… momentum spectra from the CERN-SPS NA44 Pbr Pb experiment and the implications of the fits are discussed. It is shown that resonance decays fail to explain the low mT anomaly in the pion transverse momentum spectrum. The effects of resonance decays are then considered in the calculation …
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Effect of helium injection on diffusion dominated air ingress accidents in pebble bed reactors
… SCAD a small scale simulated Pebble Bed Reactor (PBR) was constructed and a series of air ingress experiments with and without helium injection were conducted. In addition, Computational Fluid Dynamic (CFD) simulations were performed using FLUENT @ to model the experiment and gain further insight …
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A dynamic engineering model of algal cultivation systems
… accuracy of 7.33%+/5.65% for photobioreactors (PBR) and 6.7%+/5.33% for an open raceway pond (ORP) across five total species: Chlorella vulgaris, Desmodesmus intermedius, Galdieria sulphuraria, Galdieria sulphuraria Soos, and Nannochloropsis oceanica. The validated model assesses productivity at …
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Wastewater Treatment and Nitrogen Removal in Bench-Scale Photobioreactors Operated with Solids Recycling
… productivity in bench-scale photobioreactors (PBRs) simulating winter pond conditions in San Luis Obispo, California and a 6-acre raceway system in Delhi, California. Two sets of duplicate photobioreactors operated with or without solids recycling were fed primary clarifier effluent …
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Biooxidation kinetics of Leptospirillum Ferriphilum attached to a defined solid substrate
… was modified by introducing a packed bed vessel (PBR) attached as a closed loop to the CSTR. Solution drawn from the CSTR was then continuously pumped through the PBR and back to the CSTR.
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Improving integrated systems for algal biofuels and wastewater treatment
… investigated using a hybrid photobioreactor (PBR) that incorporated hollow-fiber membranes and granular activated carbon (GAC). The PBR was used to monitor the long-term performance when treating a combination of municipal wastewater and post-HTL wastewater (PHWW), which is an important step …
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