Search Results - "Rauch, Dieter"
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A laboratory test setup for in situ measurements of the dielectric properties of catalyst powder samples under reaction conditions by microwave cavity perturbation: set up and initial tests
Published in Sensors (Basel, Switzerland) (10-09-2014)“…The catalytic behavior of zeolite catalysts for the ammonia-based selective catalytic reduction (SCR) of nitrogen oxides (NOX) depends strongly on the type of…”
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Correlating the Integral Sensing Properties of Zeolites with Molecular Processes by Combining Broadband Impedance and DRIFT Spectroscopy--A New Approach for Bridging the Scales
Published in Sensors (13-11-2015)“…Zeolites have been found to be promising sensor materials for a variety of gas molecules such as NH₃, NOx, hydrocarbons, etc. The sensing effect results from…”
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Detection of the ammonia loading of a Cu Chabazite SCR catalyst by a radio frequency-based method
Published in Sensors and actuators. B, Chemical (15-12-2014)“…Zeolites are in use as catalyst materials in the selective catalytic reduction of NOx with NH3 as reducing agent. An initial NH3-adsorption on the catalyst is…”
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Sensing catalytic conversion: Simultaneous DRIFT and impedance spectroscopy for in situ monitoring of NH3–SCR on zeolites
Published in Sensors and actuators. B, Chemical (01-03-2016)“…•In situ measurements by simultaneous DRIFTS and impedance spectroscopy.•Correlation of the change in proton conductivity with differently adsorbed NH3 species…”
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A microwave-based method to monitor the ammonia loading of a vanadia-based SCR catalyst
Published in Applied catalysis. B, Environmental (01-04-2015)“…•Article is concerned with vanadia-based SCR catalysts (SCR).•A novel method (microwave cavity perturbation) can determine in operando the amount of adsorbed…”
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Ammonia Loading Detection of Zeolite SCR Catalysts using a Radio Frequency based Method
Published in SAE International journal of engines (14-04-2015)“…Ammonia adsorption on the catalyst surface is a crucial step in the selective catalytic reduction of nitrogen oxides over zeolites with NH₃ as the reducing…”
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Monitoring NH3 storage and conversion in Cu-ZSM-5 and Cu-SAPO-34 catalysts for NH3-SCR by simultaneous impedance and DRIFT spectroscopy
Published in Sensors and actuators. B, Chemical (29-11-2016)“…[Display omitted] •Cu-SAPO-34 is more advantageous than Cu-ZSM-5 in NH3 sensing.•Cu-SAPO-34 is more efficient than Cu-ZSM-5 to monitor NH3-SCR reactions below…”
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In situ detection of coke deposits on fixed-bed catalysts by a radio frequency-based method
Published in Sensors and actuators. B, Chemical (01-05-2013)“…The aim of this work is to study whether a contactless radio frequency-based method is suitable to monitor both coking and regeneration (coke burn-off) of…”
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Comparison of Iodinated Contrast Media-Induced Renal Vasoconstriction in Human, Rabbit, Dog, and Pig Arteries
Published in Investigative radiology (01-06-1997)“…RATIONALE AND OBJECTIVESContrast media (CM)-induced renal vasoconstriction is an important factor in the pathogenesis of CM-induced nephrotoxicity. The effects…”
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Bottom-interacting Ocean Acoustics edited by William A. Kuperman and Finn B. Jensen
Published in The Journal of the Acoustical Society of America (01-06-1984)Get full text
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Vascular Response to Gadolinium-Containing Contrast Media in an Ex Vivo Rabbit Arterial Model
Published in Investigative radiology (01-10-2001)“…Rauch D, Bohnemann L, Kurtz C, et al. Vascular response to gadolinium-containing contrast media in an ex vivo rabbit arterial model. Invest Radiol…”
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Role of intracellular calcium stores in contrast medium-induced renal vasoconstriction
Published in Academic radiology (01-11-1996)“…Renovascular smooth muscle contractility, an important factor in contrast media-induced nephrotoxicity, depends on intracellular Ca2+ concentration, which is…”
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Low-frequency acoustics in shallow water: Experimental and theoretical propagation and noise studies
Published in The Journal of the Acoustical Society of America (01-11-1981)“…Digital three-component ocean-bottom seismometers (OBS) with radio link have been developed to study extremely low-frequency sound propagation (about 1–15 cps)…”
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Effect of Contrast Medium on Corpus Cavernosum Smooth Muscle
Published in Investigative radiology (01-07-1997)“…RATIONALE AND OBJECTIVESChanges in contractility of corpus cavernosum (CC) smooth muscle caused by radio contrast medium may result in misinterpretations of…”
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