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49 results on '"Lox E"'

25. Oxygen storage material production useful in exhaust gas cleaning catalyst, involves mixing aqueous solution of cerium oxide precursor with aqueous solution of precursor of oxide of metal, and adding first precipitation agent to mixture.

Author

BOG, T, MUSSMANN, L, LINDNER, D, VOTSMEIER, M, FEGER, M, LOX, E, KREUZER, T, Muhammed, Mamoud, ADAMOPOULOS, O, BOG, T, MUSSMANN, L, LINDNER, D, VOTSMEIER, M, FEGER, M, LOX, E, KREUZER, T, Muhammed, Mamoud, and ADAMOPOULOS, O

Abstract

NOVELTY - Oxygen storage material production comprises mixing aqueous solution of cerium oxide precursor with aqueous solution of precursor of oxide of metal to form mixture, adding first precipitation agent to mixture to form aqueous suspension containing precipitate, separating precipitate from suspension, drying and calcining precipitate. The oxygen storage material comprises cerium oxide and second oxide of a metal. The metal is alkaline earth metal, rare earth metal, zirconium, zinc, cobalt, copper and/or manganese. USE - The method is useful for producing oxygen storage material useful in exhaust gas cleaning catalyst for purifying exhaust gases of internal combustion engines especially of stoichiometrically operated otto engines. ADVANTAGE - The method provides catalyst that shows excellent activity for purifying harmful pollutant like carbon monoxide, nitrogen oxides, and hydrocarbons. The oxygen storage materials are able to store oxygen in oxidizing atmosphere or release oxygen under reducing conditions, respectively. The oxygen storage material has high specific surface area after thermal aging and improved oxygen storage and release capacity under dynamic exhaust conditions. The storage material shows unprecedented high oxygen storage capacity and excellent dynamic properties with respect to oxygen storage and release compared to conventional materials. DESCRIPTION OF DRAWING(S) - The figure shows setup of precipitation reactor. Precipitation reactor (1) Hydrolysis reactor (2) Tubular flow reactor (3) Precipitation solution (4) Feed (5) Mixer (7) Ph meter (8), US 7485599 (2009-02-03)

Published
2003

37. Environmental Catalysis

Author

Lox, E. S. J., primary, Engler, B. H., additional, Janssen, F. J., additional, Garten, R. L., additional, Dalla Betta, R. A., additional, Schlatter, J. C., additional, Ainbinder, Z., additional, Manzer, L. E., additional, Nappa, M. J., additional, Parmon, V. N., additional, and Zamaraev, K. I., additional

Published
1997
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45. Cost-effectiveness analysis of aprepitant in the prevention of chemotherapy-induced nausea and vomiting in Belgium.

Author

Annemans L, Strens D, Lox E, Petit C, Malonne H, Annemans, Lieven, Strens, Daniëlle, Lox, Erica, Petit, Christine, and Malonne, Hughes

Abstract

Objectives: Chemotherapy-induced nausea and vomiting (CINV) remains a major adverse effect of cancer chemotherapy which may increase morbidity, reduce quality of life and threaten the success of cancer therapy. Aprepitant is effective in preventing CINV, achieving higher complete response (no emesis and no rescue therapy) compared to standard prevention, in patients receiving either highly (HEC) or moderately emetogenic chemotherapy (MEC; absolute reduction = 11 and 13%, respectively). We assessed the cost effectiveness of aprepitant-based vs standard prevention in these indications in Belgium.Materials and Methods: A decision analytical model was developed in MS Excel (Fig. 1). To estimate resource use, two approaches were used. The first is based on the preventive regimens applied in randomized controlled trials comparing aprepitant-based CINV prevention (for HEC: aprepitant days 1-3, ondansetron 32 mg i.v. day 1, oral placebo twice daily days 2-4, oral dexamethasone days 1-4; for MEC: aprepitant days 1-3, ondansetron 16 mg p.o. day 1, placebo on days 2-3, oral dexamethasone day 1), vs a standard regimen (for HEC: oral placebo days 1-3, ondansetron 32 mg i.v. day 1 and 16 mg p.o. days 2-4, oral dexamethasone days 1-4; for MEC: oral placebo, ondansetron 16 mg p.o. days 1-3, dexamethasone day 1) The second analysis is based on current real-world resource use in the Belgian setting in the prevention of CINV using a longitudinal Hospital Database. CINV-specific utility values were used to calculate quality-adjusted life years (QALYs). Drug costs were obtained from official reimbursement listings. Treatment costs for CINV were obtained from a German study and adapted to Belgium.Results: The aprepitant-based regimen is associated with 0.003 and 0.014 more QALYs in HEC and MEC, respectively and with per patient savings of 66.84 (trial based) and 74.62 (real-life based) for HEC and 17.95 (trial based) and 21.70 (real-life based) for MEC. Hence, aprepitant is both more effective and less expensive (=dominant). One-way sensitivity analyses were performed on treatment cost of emesis, the clinical benefit of aprepitant and the cost of ondansetron and showed that the results were robust on the first two parameters but sensitive on the decrease in cost of ondansetron for the moderately emetogenic chemotherapy regimens.Conclusions: In both approaches, the aprepitant-based strategy is more effective and less expensive compared to standard care. [ABSTRACT FROM AUTHOR]

Published
2008
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49. ChemInform Abstract: Geometric and Electronic Structures of Pt/V2O5/TiO2Diesel Engine Exhaust Gas Purification Catalysts Before and After Aging.

Author

Tischer, M., Troeger, L., Klein, H., Domesle, R., Lox, E. S., Prescher, G., Seibold, K., and Albers, P.

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Published
1999
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