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Showing 1 to 17 of 17 for “"PROX"”.
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In situ study of Co₃O₄ morphology in the CO-PROX reaction
The preferential oxidation (PROX) reaction is an effective process for the removal of trace amounts of carbon monoxide from a reformate stream. Tricobalt tetraoxide (Co₃O₄) is the candidate for CO-PROX in a H₂ rich gas and could be an alternative to the rare and expensive PGMs. This study …
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Auswirkung einer Unterlage mit erhöhter Wärmekapazität auf die Körpertemperatur und die Herzfrequenz während des Schlafes
… Wärmekapazität auf die KKT, die distale und proximale Hauttemperatur (T DIST, T PROX), die Herzfrequenz und den Schlaf. Verglichen wird hierbei eine Matratze mit hoher Wärmekapazität der Oberfläche mit einer konventionellen Matratze. Methoden: In einer prospektiven doppelt verblindeten …
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Preferential oxidation of carbon monoxide in hydrogen-rich gases over supported cobalt oxide catalysts
The preferential oxidation of CO (CO-PROX) has been identified as one route of further reducing the trace amounts of CO (approx. 0.5 - 1 vol%) in the H2-rich reformate gas after the high- and low-temperature water-gas shift reactions. CO-PROX makes use of air to preferentially oxidise CO to CO₂, …
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Supported Cobalt Oxide Catalysts for the Preferential Oxidation of Carbon Monoxide: An in situ Investigation
… reported, the preferential oxidation of CO (CO-PrOx) to CO2 is a very attractive catalytic process for decreasing the CO content to acceptable levels (i.e.,< 10 ppm) for operating the PEMFC. Co3O4-based catalysts have shown very good catalytic activity for the total oxidation of CO in the …
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Renewable Electricity Generation via Solar-Powered Methanol Reforming: Hybrid Proton Exchange Membrane Fuel Cell Systems Based on Novel Non-Concentrating, Intermediate-Temperature Solar Collectors
… the gaseous reactants. A preferential oxidation (PROX) catalyst was used to remove CO from simulated reformate gas, and this product gas was used to operate a PEM fuel cell. The results show 1) that the outlet temperature is not limited by heat transfer from the absorber coating to the heat …
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Composite Minimization: Proximity Algorithms and Their Applications
… each of which is the</p> <p>composition of a prox-friendly function with a matrix. Therefore, there is a practical</p> <p>need to solve such optimization problems. Besides the nondifferentiability of the</p> <p>objective functions of the associated optimization problems and the larger …
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Study of the effects of promoters (MnOx and FeOx) on Co3O4/CeO2 during Preferential Oxidation of Carbon monoxide
… monoxide removal is preferential oxidation (PROX) of carbon monoxide to carbon dioxide. This process has been identified as being cost-effective, much easier to implement, and ensures minimum loss of hydrogen when compared to other techniques such as selective CO methanation and pressure …
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Soziale Trainings für die Schule Empirische Untersuchung zur sozialen Kompetenz bei Kindern in einer Streit-Schlichter-Ausbildung
Thema dieser Arbeit ist es, bei Kindern in einer Streit-Schlichter-Ausbildung (Sekundarstufe I) anhand einer empirischen Untersuchung herauszufinden, über welche sozialen Kompetenzen (nach Kanning, 2002) die Probanden vor dem Training bereits verfügen, und ob es diesbezüglich Unterschiede zwischen …
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Carbon monoxide clean-up of reformate gas by preferential oxidation
The preferential oxidation (PrOx) activity of two Ru/Al2O3 catalysts prepared using different methods was tested. The first catalyst was prepared by wetness impregnation at a high pH and the second was prepared by incipient wetness impregnation. Catalytic activity was measured at varying …
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Skeletal element elongation and interdigital tissue regression in developing bat limbs: a gene expression analysis
… (CS15 - CS18). Meis2 is involved in limb proximodistal patterning, and has been shown to promote proliferation, and survival of cells in other developmental contexts. Meis2 had strong expression in the expanding bat forelimb interdigits, with lowered expression in mouse and bat hindlimb …
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Macrohabitat factors affecting distribution patterns of freshwater mussels in the Clinch River (Virginia, Tennessee)
… = 0.52) for unbraided transects (n = 43), and proximity to floodplain (PROX) (p>F=0.0008) and PBR (p>F=0.005) were selected by SDA (cumulative ASCC = 0.61) for braided transects (n = 23). In the second habitat study, 14 habitat variables were compared between high and low quality mussel sites …
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A Study of the Robustness of the Three-Parameter Item Response Model
… for sample sizes of 1000 examinees, and PROX (Cohen, 1976), a one-parameter model that uses algebraic procedures, is suggested when samples are comprised of 500 examinees or less.</p>
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Optimization of Markov Random Fields in Computer Vision
… In particular, our algorithm iteratively approximates the original MRF energy with an appropriately weighted surrogate energy that is easier to minimize. Furthermore, it guarantees that the original energy decreases at each iteration. To this end, we consider the scenario where the weighted …
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Optimization of Markov Random Fields in Computer Vision
… In particular, our algorithm iteratively approximates the original MRF energy with an appropriately weighted surrogate energy that is easier to minimize. Furthermore, it guarantees that the original energy decreases at each iteration. To this end, we consider the scenario where the weighted …
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Characterization of foetal hepatic cells during rat liver development
… und Leber Marker wie Beta-catenin, HNF4-alpha, Prox1, BMP-4, Foxa2 und GATA-4 expremieren können.Am zweiten Teil dieser Arbeit waren wir an der Entwicklung der Leber interessiert, nachdem sie als Organ identifizierbar war (von E12 zu Adultstadium). Mit Hilfe morphometrische Analyse wurde es …