Relevant bibliographies by topics / Catalyse triple

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Catalyse triple'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 May 2024

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Journal articles on the topic "Catalyse triple"

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Straube, Axel, Peter Coburger, Luis Dütsch, and Evamarie Hey-Hawkins. "Triple the fun: tris(ferrocenyl)arene-based gold(i) complexes for redox-switchable catalysis." Chemical Science 11, no. 39 (2020): 10657–68. http://dx.doi.org/10.1039/d0sc03604h.

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Trinuclear gold(i) complexes of C<sub>3</sub>-symmetric tris(ferrocenyl)arene-based tris-phosphanes with four accessible oxidation states catalyse the ring-closing isomerisation of N-(2-propyn-1-yl)benzamide with different rates depending on their redox state.
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Hsieh, Yves, and Philip Harris. "Xylans of Red and Green Algae: What Is Known about Their Structures and How They Are Synthesised?" Polymers 11, no. 2 (2019): 354. http://dx.doi.org/10.3390/polym11020354.

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Xylans with a variety of structures have been characterised in green algae, including chlorophytes (Chlorophyta) and charophytes (in the Streptophyta), and red algae (Rhodophyta). Substituted 1,4-β-d-xylans, similar to those in land plants (embryophytes), occur in the cell wall matrix of advanced orders of charophyte green algae. Small proportions of 1,4-β-d-xylans have also been found in the cell walls of some chlorophyte green algae and red algae but have not been well characterised. 1,3-β-d-Xylans occur as triple helices in microfibrils in the cell walls of chlorophyte algae in the order Br
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Mohamed, Shams El Din, and Hussein A. Mohamed. "Effect of Foliar Application with Sulfur Element and Amino Acid Selenocysteine on Maize (Zea mays L.) Exposed to Stress with Hydrogen Peroxide." IOP Conference Series: Earth and Environmental Science 1262, no. 8 (2023): 082009. http://dx.doi.org/10.1088/1755-1315/1262/8/082009.

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Abstract A field experiment was conducted during the fall season (2022) in the fields of the College of Agriculture - University of Diyala in order to demonstrate the effect of foliar Application with sulfur element and the amino acid Selenocysteine on maize (Zea mays.L) subjected to hydrogen peroxide stress and its effect on plant height, leaf area, proline and catalase enzyme, the experiment was carried out according to the randomized complete block design (RCBD), a regular global experiment with three replications, and the experimental parameters included the following: Three levels of spra
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Sanders, Akeisha N., Lori F. Wright, and Martin S. Pavelka. "Genetic characterization of mycobacterial l,d-transpeptidases." Microbiology 160, no. 8 (2014): 1795–806. http://dx.doi.org/10.1099/mic.0.078980-0.

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l,d-Transpeptidases (Ldts) catalyse the formation of 3–3 cross-links in peptidoglycans (PGs); however, the role of these enzymes in cell envelope physiology is not well understood. Mycobacterial PG contains a higher percentage of 3–3 cross-links (~30–80 %) than the PG in most other bacteria, suggesting that they are particularly important to mycobacterial cell wall biology. The genomes of Mycobacterium tuberculosis and Mycobacterium smegmatis encode multiple Ldt genes, but it is not clear if they are redundant. We compared the sequences of the Ldt proteins from 18 mycobacterial genomes and fou
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Castellano, Elena, Aithne Atkinson, Kevin O’Neill, and Nelofer Syed. "The Collagen-Prolyl Hydroxylases promote proliferation and invasion in GBM." Neuro-Oncology 21, Supplement_4 (2019): iv12—iv13. http://dx.doi.org/10.1093/neuonc/noz167.051.

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Abstract Glioblastoma Multiforme (GBM) is the most aggressive form of brain tumour, with a median survival time of just 14 months. Current standard therapy includes surgical excision, followed by chemotherapy and radiotherapy, however complete surgical excision is not usually possible due to the diffuse and infiltrative nature of the disease. To combat this, therapies inhibiting the invasion of leader migratory cells are an attractive area of research. The collagen prolyl-4 hydroxylases (C-P4Hs) are a family of proteins which catalyse the hydroxylation of proline residues on pre-pro-collagen,
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Sherbrook, Evan M., Hoimin Jung, Dasol Cho, My-Hyun Baik, and Tehshik P. Yoon. "Brønsted acid catalysis of photosensitized cycloadditions." Chemical Science 11, no. 3 (2020): 856–61. http://dx.doi.org/10.1039/c9sc04822g.

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Kawasaki, Laura, and Jesús Aguirre. "Multiple Catalase Genes Are Differentially Regulated in Aspergillus nidulans." Journal of Bacteriology 183, no. 4 (2001): 1434–40. http://dx.doi.org/10.1128/jb.183.4.1434-1440.2001.

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ABSTRACT Detoxification of hydrogen peroxide is a fundamental aspect of the cellular antioxidant responses in which catalases play a major role. Two differentially regulated catalase genes, catA andcatB, have been studied in Aspergillus nidulans. Here we have characterized a third catalase gene, designated catC, which predicts a 475-amino-acid polypeptide containing a peroxisome-targeting signal. With a molecular mass of 54 kDa, CatC shows high similarity to other small-subunit monofunctional catalases and is most closely related to catalases from other fungi, Archaea, and animals. In contrast
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Robbertse, Barbara, O. C. Yoder, Anita Nguyen, Conrad L. Schoch, and B. Gillian Turgeon. "Deletion of all Cochliobolus heterostrophus Monofunctional Catalase-Encoding Genes Reveals a Role for One in Sensitivity to Oxidative Stress but None with a Role in Virulence." Molecular Plant-Microbe Interactions® 16, no. 11 (2003): 1013–21. http://dx.doi.org/10.1094/mpmi.2003.16.11.1013.

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The genome of the maize pathogen Cochliobolus heterostrophus encodes three unlinked monofunctional catalase-encoding (CAT) genes that singly or in combination could offer protection against the harmful effects of oxidative stress. Phylogenetic analysis placed the CAT2 and CAT3 proteins in a cluster with large subunit catalases (CAT3 has a secretory signal sequence and was grouped with known secreted catalases), whereas CAT1 clustered with small subunit catalases. Single, double, and triple cat mutants were created and screened for sensitivity to hydrogen peroxide and altered virulence on maize
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Guo, Ming, Anna Block, Crystal D. Bryan, Donald F. Becker, and James R. Alfano. "Pseudomonas syringae Catalases Are Collectively Required for Plant Pathogenesis." Journal of Bacteriology 194, no. 18 (2012): 5054–64. http://dx.doi.org/10.1128/jb.00999-12.

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ABSTRACTThe bacterial pathogenPseudomonas syringaepv. tomato DC3000 must detoxify plant-produced hydrogen peroxide (H2O2) in order to survive in its host plant. Candidate enzymes for this detoxification include the monofunctional catalases KatB and KatE and the bifunctional catalase-peroxidase KatG of DC3000. This study shows that KatG is the major housekeeping catalase of DC3000 and provides protection against menadione-generated endogenous H2O2. In contrast, KatB rapidly and substantially accumulates in response to exogenous H2O2. Furthermore, KatB and KatG have nonredundant roles in detoxif
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Shubina, Tatyana E., and Timothy Clark. "Catalysis of the Quadricyclane to Norbornadiene Rearrangement by SnCl2 and CuSO4." Zeitschrift für Naturforschung B 65, no. 3 (2010): 347—r369. http://dx.doi.org/10.1515/znb-2010-0319.

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Ab initio and density-functional theory (DFT) calculations have been used to investigate the model rearrangements of quadricyclane to norbornadiene catalysed by single CuSO4 and SnCl2 molecules. The isolated reactions with the two molecular catalysts proceed via electron-transfer catalysis in which the hydrocarbon is oxidised, in contrast to systems investigated previously in which the substrate was reduced. The even-electron SnCl2-catalysed reaction shows singlet-triplet two-state reactivity. Solvation by a single methanol molecule changes the mechanism of the rearrangement to a classical Lew
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Dissertations / Theses on the topic "Catalyse triple"

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Roudier, Mylène. "Catalyse duale pour une synthèse énantiosélective éco-compatible." Electronic Thesis or Diss., Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4347.

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Ce mémoire de thèse se concentre sur le développement de réactions multicatalysées impliquant une activation iminium et un transfert d’hydrogène réversible rédox-neutre pour la synthèse de briques moléculaires complexes énantioenrichies à partir de composés 1,3-dicarbonylés et d’alcools allyliques.Une cascade réactionnelle combinant un complexe de fer et une pyrrolidine chirale a été développée pour la préparation d’alcools g-fonctionnalisés énantioenrichis par une approche impliquant économie d’étapes et d’atomes. L’efficacité de cette méthode impliquant une catalyse duale ainsi qu’une étape
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Roudier, Mylène. "Catalyse duale pour une synthèse énantiosélective éco-compatible." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4347.

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Ce mémoire de thèse se concentre sur le développement de réactions multicatalysées impliquant une activation iminium et un transfert d’hydrogène réversible rédox-neutre pour la synthèse de briques moléculaires complexes énantioenrichies à partir de composés 1,3-dicarbonylés et d’alcools allyliques.Une cascade réactionnelle combinant un complexe de fer et une pyrrolidine chirale a été développée pour la préparation d’alcools g-fonctionnalisés énantioenrichis par une approche impliquant économie d’étapes et d’atomes. L’efficacité de cette méthode impliquant une catalyse duale ainsi qu’une étape
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Klein, Hubert. "Transformations sélectives d'alcynes en diènes et alcènes halogénés, et en oligomères par catalyse au ruthénium." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S160.

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Un des défis majeurs du 21ème siècle sera l'économie d'énergie, c'est pourquoi nous recherchons actuellement la plus grande efficacité du matériel et des procédés industriels, couplée à une économie en énergie. La chimie organique moderne n'échappe pas à ce constat et doit en plus fournir les besoins croissants de nouvelles molécules dans le domaine pharmaceutique, l'agrochimie ainsi que la recherche de nouveaux matériaux. L'utilisation de catalyseur à base de métaux de transition a permis de limiter les étapes de synthèse, de diminuer les quantités de réactifs ainsi que d'augmenter l'efficaci
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Eckert, Matthieu. "Nouveaux systèmes catalytiques du ruthénium : pour la métathèse d'alcènes et la bicyclisation d'aminoesters." Rennes 1, 2005. http://www.theses.fr/2005REN1S145.

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Les différents systèmes catalytiques présentés ont permis de transformer des énynes en composés à valeur ajoutée. Une réaction catalytique originale de formation de liaisons carbone-carbone, un nouveau précatalyseur de métathèse d'alcènes au ruthénium et un nouveau type de réarrangement métallorétroène ont été développés au cours de ces travaux. Le développement d'une nouvelle réaction catalytique tandem d'alcénylation / bicyclisation appliquée à des énynes fluorés a permis l'accès efficace à des dérivés bicycliques d'a-aminoacides fluorés, de structures contraintes. Ces structures présentent
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Messori, Alessandro. "Bidentate N-heterocyclic carbene complex of Manganese as catalyst for hydrosilylation and hydroboration of double and triple bonds." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21666/.

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Scopo del presente lavoro di tesi è la sintesi di un complesso di manganese contenente un legante bis N-eterociclico e la sua applicazione come catalizzatore nelle reazioni di idrosililazione e idroborazione di doppi e tripli legami. I composti organici sililati e borilati sono importanti prodotti intermedi in diversi settori della chimica fine grazie alla loro stabilità e alla loro capacità di essere ampiamente funzionalizzati. Idroborazione e idrosililazione, grazie allo sviluppo di catalizzatori appositi, permettono di ottenere questi composti riducendo coprodotti, sottoprodotti e condizion
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Moulin, Solenne. "Addition de carbènes aux alcynes par catalyse au ruthénium : synthèse de dérivés bicycliques d’acides aminés et de diènes fonctionnalisés." Rennes 1, 2010. http://www.theses.fr/2010REN1S150.

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Des réactions d'addition de carbènes aux triples liaisons en présence du précatalyseur Cp*Ru(cod)Cl ont été développées. Ces transformations catalytiques ont permis d'accéder à de nouvelles molécules polyfonctionnelles par la formation de liaisons carbone-carbone. La réaction catalytique tandem de métathèse/cyclopropanation découverte au laboratoire, appliquée à des énynes dérivés d'α-aminoacides a permis d'accéder à des dérivés d'alcénylbicyclo[3. 1. 0]hexanes et d'alcénylbicyclo[4. 1. 0]heptanes. La réaction a été appliquée sur des énynes obtenus à partir de la glycine, de l'alanine et de la
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Ma, Jian-Gong [Verfasser], and Matthias [Akademischer Betreuer] Driess. "Triply-Bonded Dimolybdenum(III) Hexaalkoxides Towards Model Catalysts / Jian-Gong Ma. Betreuer: Matthias Driess." Berlin : Universitätsbibliothek der Technischen Universität Berlin, 2011. http://d-nb.info/1014756766/34.

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Anwar, Adeel. "Enhancing properties of biodiesel via heterogeneous catalysis." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/enhancing-properties-of-biodiesel-via-heterogeneous-catalysis(7e52f44f-4c50-4cd3-b5a8-cf6ce714b7d6).html.

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Biodiesel is a re-emerging biofuel as an alternative to the traditional petroleum derived diesel. There are however, several factors that currently hinder the widespread uptake. Majority of the biodiesel are currently produced from edible oils thereby sparking the food versus fuel debate, the cost of feedstock is significantly high, there are problems experienced in the traditional production process and the resulting fuel is of inadequate quality. This work focused on addressing the issue of poor cold flow properties to improve the overall quality of biodiesel. The skeletal isomerisation of l
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Wu, Qiang. "Wastewater treatment by catalytic wet air oxidation in a continuous pilot-scale trickle bed reactor /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CENG%202004%20WU.

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Monnier, Florian. "Applications du catalyseur RuCl(COD)C5Me5 en chimie fine : transformations sélectives d'alcynes en diènes fonctionnels, alcénylcyclopropanes et vinylphosphines." Rennes 1, 2003. http://www.theses.fr/2003REN10095.

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Des réactions catalytiques originales de formation de liaisons carbone-carbone et de liaisons carbone-phosphore ont été développées. Ce complexe permet en particulier la synthèse catalytique et sélective de molécules polyfonctionnelles par activation de triples liaisons. La formation régio- et stéréosélective d'esters de diénol a été mise au point par dimérisation d'alcynes terminaux en présence d'acides carboxyliques. Les études mécanistiques et théoriques ont révélé un complexe biscarbène ruthénium mixte de Fischer-Schrock comme intermédiaire clé de la réaction. La découverte d'une nouvelle
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Books on the topic "Catalyse triple"

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Phibbs, Cheryl. The Montgomery Bus Boycott. ABC-CLIO, LLC, 2009. http://dx.doi.org/10.5040/9798400687297.

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A revealing, comprehensive, and detailed account focusing on the people and personalities behind the Montgomery, Alabama, Bus Boycott in 1955–1956, which became the catalyst for a national civil rights movement. The Montgomery Bus Boycott: A History and Reference Guide offers a comprehensive account of a critical turning point in American history. It offers a richly detailed chronological trip through post-World War II Southern society to the early 1960s, then focuses on the day-to-day frustrations, challenges, and victories of the people behind the protest that inspired a nationwide movement.
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Whitlinger, Claire. Between Remembrance and Repair. University of North Carolina Press, 2020. http://dx.doi.org/10.5149/northcarolina/9781469656335.001.0001.

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Few places are more notorious for civil rights–era violence than Philadelphia, Mississippi, the site of the 1964 “Mississippi Burning” murders. Yet in a striking turn of events, Philadelphia has become a beacon in Mississippi’s racial reckoning in the decades since. Claire Whitlinger investigates how this community came to acknowledge its past, offering significant insight into the social impacts of commemoration. Examining two commemorations around key anniversaries of the murders held in 1989 and 2004, Whitlinger shows the differences in how those events unfolded. She also charts how the 200
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Book chapters on the topic "Catalyse triple"

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Sherbrook, Evan M., and Tehshik P. Yoon. "Asymmetric catalysis of triplet-state photoreactions." In Photochemistry. Royal Society of Chemistry, 2018. http://dx.doi.org/10.1039/9781788013598-00432.

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Musaev, Djamaladdin G., Harold Basch, and Keiji Morokuma. "The N≡N Triple Bond Activation by Transition Metal Complexes." In Catalysis by Metal Complexes. Springer US, 2002. http://dx.doi.org/10.1007/0-306-47718-1_13.

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Clot, Eric, and Odile Eisenstein. "Isomerization of Double and Triple C-C Bonds at a Metal Center." In Catalysis by Metal Complexes. Springer US, 2002. http://dx.doi.org/10.1007/0-306-47718-1_6.

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Penzien, Jochen, Thomas E. Müller, and Johannes A. Lercher. "Direct Addition of Amine N-H to CC Triple Bonds." In Catalysis by Unique Metal Ion Structures in Solid Matrices. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0782-5_17.

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Luzyanin, Konstantin V., and Maxim L. Kuznetsov. "Metal-Mediated [2+3] Dipolar Cycloaddition to Substrates with CN Triple Bond: Recent Advances." In Advances in Organometallic Chemistry and Catalysis. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118742952.ch13.

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van Zutphen, Kesso Gabrielle, Dominique Barjolle, Sophie van den Berg, et al. "Secondary Cities as Catalysts for Nutritious Diets in Low- and Middle-Income Countries." In Science and Innovations for Food Systems Transformation. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-15703-5_16.

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AbstractThe world is facing a malnutrition crisis in the midst of rising rates of urbanization; more than half of the world’s population lives in urban areas, a number that is expected to reach two-thirds by 2050, consuming 80% of the world’s food. Instead of the development of existing cities into ‘mega-cities,’ urbanization is creating a patchwork of smaller urban areas. In 2018, close to half of the world’s urban residents lived in settlements or towns with less than 500,000 inhabitants. These settlements are classified as secondary cities and are, in terms of population, the fastest growing urban areas. Poor diets among city inhabitants are the consequence of a combination of forces. These include changes in types of occupation, particularly for women; food-environment factors; shifts in norms and attitudes regarding food; globalization of food supply chains; lack of infrastructure; post-harvest food loss and waste, etc. Secondary cities offer entry points for food system transformation. Secondary cities are characterized by strong urban-rural linkages and the opportunity for localized food production and consumption. These cities could also play a key role in enhancing resilience to food security shocks. This chapter discusses the challenge of the growing triple burden of malnutrition in urban contexts and argues for the important role of secondary cities in transforming urban food systems. Through three case studies of secondary cities in LMICs, these cities are shown as emerging players in nutrition-centered food system interventions.
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Dobson, C. M., J. A. Gerrard, and A. J. Pratt. "Proteins as catalysts." In Foundations of Chemical Biology. Oxford University Press, 2001. http://dx.doi.org/10.1093/hesc/9780199248995.003.0005.

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This chapter reviews how proteins adopt well-defined three-dimensional structures and are capable of binding small molecules reversibly at one or more specific sites on their surfaces. It refers to enzymes that generally catalyse specific reactions of particular molecules and the enhancements of the reaction rate that are often remarkably high. It also emphasizes the efficiency of enzymes as the rate-limiting factor in the catalysed reaction is the diffusion of the reactants to the enzyme. The chapter focuses on the appreciation of the chemistry of enzyme catalysis that provides insights into the biochemical details of cells and chemical catalysis. It looks at features of enzyme catalysis by illustrating triose phosphate isomerase in great detail.
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Taber, Douglass. "Intermolecular and Intramolecular Diels-Alder Reactions: (-)-Oseltamivir (Fukuyama), Platensimycin (Yamamoto) and 11,12-Diacetoxydrimane (Jacobsen)." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0078.

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Powerful methods for catalytic, enantioselective intermolecular Diels-Alder reactions have been developed. Ben L. Feringa and Gerard Roelfes of the University of Groningen have shown (Organic Lett. 2007, 9, 3647) that a catalyst prepared by combining salmon testes DNA with a Cu complex directed the absolute sense of the addition of 1 to cyclopentadiene 2 . Mukund P. Sibi of North Dakota State University has reported (J. Am. Chem. Soc . 2007, 129 , 395) related work with achiral pyrazolidinone dienophiles and chiral Cu catalysts. Tohru Fukuyama of the University of Tokyo found (Angew. Chem. Int. Ed . 2007, 46, 5734) that the MacMillan catalyst 5 was effective at mediating the addition of acrolein 4 to the pyridine-derived diene 3, enabling an enantioselective synthesis of the prominent antiviral (-)-oseltamivir (tamiflu) 7. Hisashi Yamamoto of the University of Chicago has demonstrated (J. Am. Chem. Soc . 2007, 129, 9534 and 9536) that the novel catalyst 10 effected addition of methyl acrylate 9 to the diene 8, leading to an elegant enantioselective synthesis of the tetracycle 12, the key intermediate in the Nicolaou synthesis of platensimycin. New illustrations of the power of the intramolecular Diels-Alder reaction have been put forward. Demonstrating the influence of a single subsituent on the tether, William R. Roush of Scripps/Florida found (Organic Lett . 2007, 9, 2243) that cyclization of 13 led to the diastereomer 14, complementary to the result observed with an acyclic triene. Ryo Shintani and Tamio Hayashi of Kyoto University have extended (Angew. Chem. Int. Ed . 2007, 46, 7277) their studies of chiral diene-based Rh catalysts to the enantioselective cyclization of alkynyl dienes such as 16. Jonathan W. Burton of the University of Oxford and Andrew B. Holmes of the University of Melbourne employed (Chem. Commun . 2007, 3954) the MacMillan catalyst 5 for the cyclization of 18 to 19. It is impressive that ent- 5 catalyzed the cyclization of 18 cleanly into the diastereomer of 19 in which both of the newly-created stereogenic centers were inverted.
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Finiels, A., P. Geneste, M. Lasperas, F. Marichez, and P. Moreau. "Triple Bond Hydration Using Zeolites as Catalysts." In Studies in Surface Science and Catalysis. Elsevier, 1991. http://dx.doi.org/10.1016/s0167-2991(08)61166-0.

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Hirsch, A., and O. Vostrowsky. "Base-Catalyzed Triple-Bond Isomerizations (Zipper Reaction)." In Polyynes, Arynes, Enynes, and Alkynes. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-043-00043.

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Conference papers on the topic "Catalyse triple"

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Harsha, Shreyas, Rakesh Sharma, Martin Dierner, et al. "Dewetted Pt nanoparticles for electrochemical hydrogen evolution: Role of Pt structure and Pt-substrate-electrolyte triple-phase boundary." In Catalyst Design Strategies for Photo- and Electrochemical Fuel Synthesis. FUNDACIO DE LA COMUNITAT VALENCIANA SCITO, 2023. http://dx.doi.org/10.29363/nanoge.ecat.2023.009.

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Kim, D., H. Kobayashi, R. Nagumo, et al. "Study of electronic structure of catalyst at Triple Phase Boundary in the cathode catalyst layer of PEFCs by using computational chemistry method." In 2010 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2010. http://dx.doi.org/10.7567/ssdm.2010.p-11-14.

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Strasser, Wayne, and Kurt Svihla. "CFD Study of an Evaporative Trickle Bed Reactor." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-13303.

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A numerical study was carried out to investigate steady-state and transient phase distribution, evaporation, and thermal runaway in a large-scale high-pressure trickle bed reactor operating in the low interaction regime. The thermal inertia of the catalyst particles proved to be a significant contribution to the overall energy balance. A cooling recycle stream, containing reaction products and a fresh feed, was included via a closed loop calculation. It was found that, as expected, phase distribution in the catalyst bed had a substantial impact production rate; a faulty feed distribution syste
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Williams, Shazam, Mojghan Naseri, Joe Aleixo, and Kristoffer Sandelin. "Field Experience and Laboratory Analysis of Oxidation Catalyst on Dual Fuel Engines." In ASME 2006 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ices2006-1362.

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A DCL oxidation catalyst for exhaust-gas cleaning has been field tested on a Wa¨rtsila¨ 50 series dual-fuel engine during 5000 hours of continuous operation in an end-user power plant application. The engine has been designed for continuous operation on natural gas (NG), light fuel oil (LFO) as well as heavy fuel oil (HFO), thus giving the consumer a wide variety of fuelling options. All three fuels were used at some point during the 5000 hours field trial. These fuels have different properties such as differing levels of sulphur and ash contents that affect the abatement efficiencies of the o
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Khan, Munir, Yexiang Xiao, Bengt Sunde´n, and Jinliang Yuan. "Analysis of Multiphase Transport Phenomena in PEMFCS by Incorporating Microscopic Model for Catalyst Layer Structures." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65142.

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The catalyst layer (CL) in polymer electrolyte membrane (PEM) fuel cells is one of the key components regulating the overall performance of the cell. In PEM fuel cells, there are two CLs having identical composition for hydrogen oxidation (HO) and oxygen reduction (OR) reactions. There are four phases inside the CL, namely: carbon, Pt particles, ionomer and voids. In this work, a micro-model of the cathode CL has been developed mathematically using finite volume (FV) technique to investigate the transport phenomena of reactants and product species, ions and electrons by incorporating the above
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Sui, P. C., N. Djilali, and Qianpu Wang. "A Pore Scale Model for the Transport Phenomena in the Catalyst Layer of a PEM Fuel Cell." In ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer. ASMEDC, 2008. http://dx.doi.org/10.1115/mnht2008-52152.

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In a proton exchange membrane fuel cell (PEMFC), the catalyst layer is a porous medium made of carbon-supported catalysts and solid electrolyte, and has a thickness in the order of 10 μm. Within this layer, complex transport phenomena take place: transport of charged species (H+, electrons and ionic radicals), non-charged species (gaseous H2O, O2, H2, N2 and liquid water) and heat transfer occur in their own pathways. Furthermore, phase change of water and physiochemical/electrochemical reactions also take place on phase boundaries. These transport process take place in an intertwined network
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Paioti, Paulo H. S., John M. Ketcham, and Aaron Aponick. "Acetonides as Masked Nucleophiles in the Gold-Catalyzed Spiroketalization of Monopropargylic Triols." In 15th Brazilian Meeting on Organic Synthesis. Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-15bmos-bmos2013_2013813181115.

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Otto, Jessica, Evan Davison, and Randy Maglinao. "Synthesis of Cycloalkanes from Lignocellulosic Platform." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/qbeo2379.

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Abstract: Catalytic hydrodeoxygenation of biooil is instrumental in producing sustainable aviation fuels, specifically cycloalkanes, from lignocellulosic materials. Cycloalkanes typically have higher energy densities, lower freeze points and higher flash points than conventional jet fuel. In our study, we compared hydrodeoxygenation of p-cresol using Pd/C and tandem hydrogenation-dehydration using Pd/C for hydrogenation and heteropolyacid on alumina catalyst for dehydration. All of the hydrodeoxygenation and hydrogenation trials were ran at 250°C and 600 psi of hydrogen gas while dehydration t
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Galantine, Bernard, Philippe Lepante, Alex Angebert, et al. "Reduction of Soot Emitted by Gas Turbines Fired on Gasoil." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-64200.

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Particulate matter (PM) emitted by the combustion of liquid fuels consist of both ash and soot particles. For installations fired on heavy fuel oil, ash particles represent a substantial fraction of the PM emitted. However, when one burns distillate oil, soot accounts for more than 95% of the PM emission. There is currently a marked move towards the reduction of particles emitted by combustion installations. This includes gas turbines operated in cogeneration or in simple/combined cycle. This trend is driven namely by the EU BREF (Best Available Techniques Reference Document) and IED (Industri
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Sultana, Sharmin, Md Sad Salabi Sawrav, Snygdha Rani Das, et al. "Isolation and Biochemical Characterization of Cellulase Producing Goat Rumen Bacteria." In International Conference on Emerging Trends in Engineering and Advanced Science. AIJR Publisher, 2022. http://dx.doi.org/10.21467/proceedings.123.12.

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Cellulose is the most prevalent polymer on the planet and has long been utilized for a variety of industrial applications. The study's goal was to screen and isolate cellulase-producing bacteria from the rumen of a goat collected from different location of Dinajpur district. To do so, rumen content samples from two distinct goats were collected. In this investigation, rumen cellulase-producing bacteria were isolated and characterized after serial dilution of five isolates up to six fold and inoculation into Nutrient agar. Following that, all of the isolates were underwent Methyl Red (MR) test
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Reports on the topic "Catalyse triple"

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de Brauw, Alan, Daniel Gilligan, Laura Leavens, Fekadu Moges, Shalini Roy, and Mulugeta Tefera. Impact Evaluation of the SHARPE Programme in Ethiopia: Academic Report. Centre for Excellence and Development Impact and Learning (CEDIL), 2023. http://dx.doi.org/10.51744/crpp6.

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The Strengthening Host and Refugee Populations in Ethiopia (SHARPE) programme uses a market systems development approach to promote increased self-reliance and economic opportunities for refugees and host communities through the piloting and scaling of interventions across different sectors. This approach is based upon understanding the economic barriers that refugee and host communities face, and working with key stakeholders – including businesses, government, and service providers – to improve market function for people in these regions. This report focuses on evaluating the impacts of inve
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Horwitz, Benjamin A., and Barbara Gillian Turgeon. Fungal Iron Acquisition, Oxidative Stress and Virulence in the Cochliobolus-maize Interaction. United States Department of Agriculture, 2012. http://dx.doi.org/10.32747/2012.7709885.bard.

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Our project focused on genes for high affinity iron acquisition in Cochliobolus heterostrophus, a necrotrophic pathogen of maize, and their intertwined relationship to oxidative stress status and virulence of the fungus on the host. An intriguing question was why mutants lacking the nonribosomal peptide synthetase (NRPS) gene (NPS6) responsible for synthesis of the extracellular siderophore, coprogen, are sensitive to oxidative stress. Our overall objective was to understand the mechanistic connection between iron stress and oxidative stress as related to virulence of a plant pathogen to its h
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