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Showing 1 to 20 of 315 for “"NH3"”.

  1. Investigation of NH3 and no adsorption over Cu/SAPO-34 and Cu/AlOo3 catalysts for NH3–SCR system

    Rawah, Basil

    In this study, Copper supported on SAPO-34 molecular sieves or alumina is prepared via an incipient wetness impregnation method for ammonia selective catalytic reduction (NH_3-SCR). These NH_3-SCR catalysts are characterized by pulse chemisorption, temperature-programmed reduction (TPR), and …

    njit Repository record

  2. The Synthesis and Characterization of RuII(bpy){(bpyrm)RuII(NH3)4}2](PF6)6 and [RuII(bpy)2(bpyrm)RuII(NH3)4](PF6)4

    Pavinato, Rick Anthony

    eiu Repository record

  3. Nanostructured Catalysts for Green Fuels Production: Electrochemical Synthesis of NH3 and H2 [Catalizzatori nanostrutturati per la produzione di Green Fuels: sintesi elettrochimica di NH3 e H2]

    TRANCHIDA, GIUSEPPEUniversità degli studi di Catania2025

    L'ammoniaca (NH3) è ampiamente utilizzata in molti settori, dall'agricoltura alla farmaceutica, ed è recentemente emersa come un promettente vettore di energia carbon-free grazie al suo alto contenuto di idrogeno. Tradizionalmente, la produzione di ammoniaca si basa sul processo Haber-Bosch, che …

    catania Repository record

  4. Isotopic labelling studies of the reaction of NO and NH3 over oxide catalysts

    Duffy, Bronwyn LeeUNSW, Sydney1994

    unsw Repository record

  5. Binding of Cobalt (III) to Nucleic Acids via Reaction with [Co(NH3)5(OH2)]3+

    Calderone, David M2011

    shu-thes Repository record

  6. Fluorinated Graphene Oxide Based Chemiresistive Gas Sensor Targeting NH3 and Other Analytes Under Atmospheric Conditions

    Amor, Ivan MarkCarleton University2021

    … gas sensor. An ultra-low-level detection of NH3 (~>2.26 ppm) was observed by the chemiresistive sensor which was extended to detect acetone and distinguish between their individual transient responses. The sensor system is fully integrated and miniaturized making it suitable for …

    carleton Repository record

  7. Viabilidad de un proceso para la eliminación conjunta de H2S y NH3 contenido en efluentes gaseosos

    Ramírez, MartínServicio de publicaciones de la Universidad de Cadiz2009

    H2S y NH3 son compuestos altamente tóxicos, incoloros, irritantes y malolientes. Considerables concentraciones de H2S y NH3 son emitidos por procesos industriales como plantas petroquímicas, industria alimentaria, plantas de tratamiento de aguas residuales, vertederos, granjas animales e industria …

    cadiz Repository record

  8. A Window into Selective Catalytic Reduction: a RAIRS Study of NO and NH3 on Cu{311}

    Sitathani, KritUniversity of Cambridge2017

    … between the bare Cu{311} surface with NO and NH3,individually and co-adsorbed using reflection-absorption infrared spectroscopy (RAIRS). In addition to the bare Cu{311} surface, the interaction of NO and NH3 with the various oxygen phases of the Cu{311} surface phases was also studied. Several …

    cambridge Repository record

  9. Use of 15N-labeled anhydrous NH3 to determine the efficiency of fall N fertilization for corn production

    Griesheim, Kelsey LuellaUniversity of Illinois at Urbana-Champaign2019

    Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2021-05-01

    uiuc Repository record

  10. Laboratory Measurements of the Millimeter Wavelength Opacity of Phosphine (PH3) and Ammonia (NH3) Under Simulated Conditions for the Cassini-Saturn Encounter

    Mohammed, Priscilla NaseemGeorgia Institute of Technology2005

    The molecular compositions of the atmospheres of the giant planets (Jupiter, Saturn, Uranus and Neptune) are fundamental to understanding the processes which formed these planets and the solar system as a whole. Microwave observations of these planets probe regions in their atmospheres from …

    gatech Repository record

  11. The effect of endurance training on human ammonia metabolism

    Snow, Rodney JFootscray Institute of Technology1988

    This thesis examines human ammonia (NH3) metabolism in trained and untrained individuals. Specifically, these aspects include: 1) plasma NH3 accumulation during exercise at similar absolute and relative work intensities; 2) plasma NH3 accumulation during recovery from maximal exercise; 3) the …

    vu-aus Repository record

  12. Impact of spatial and temporal distribution of ammonia emissions from chemical fertilizer usage on predictions of air quality in the Midwest United States

    Balasubramanian, SrinidhiUniversity of Illinois at Urbana-Champaign2018

    Ammonia (NH3) is a precursor to ambient particulate matter (PM). PM is regulated to protect human health and visibility. Atmospheric deposition of NH3 and other reactive nitrogen compounds exacerbates surface water eutrophication, soil acidity and ecosystem damages. Accurate prediction of impacts …

    uiuc Repository record

  13. Biosphere-atmosphere exchange of ammonia from a fertilized corn canopy in Central Illinois

    Nelson, Andrew JosephUniversity of Illinois at Urbana-Champaign2018

    … the primary source of anthropogenic atmospheric NH3 in Illinois. Atmospheric NH3 is a precursor to secondary particulate matter (PM) and it also contributes to eutrophication and soil acidification following wet or dry deposition. Uncertainty in NH3 emissions due to sparse measurements limit the …

    uiuc Repository record

  14. ΕΞΑΤΜΙΣΗ ΑΜΜΩΝΙΑΣ ΣΕ ΥΔΡΟΓΟΝΟ 25 BAR

    Stegou-Sagia, Athina, Στέγγου-Σαγιά, ΑθηνάNational Technical University of Athens (NTUA)1986

    THE WORK ENTITLED "EVAPORATION OF NH3 IN NH3/H2 ATMOSPHERE BY 25 BAR", PRESENTS THE THERMODYNAMIC AND TRANSPORT PROPERTIES OF THE NH3/H2 GAS MIXTURE AS WELLAS THE EVAPORATION PROCESS OF NH3 IN NH3/H2 ATMOSPHERE THAT TAKES PLACE IN NEUTRAL GAS ABSORPTION REFRIGERATION UNITS. THE DATA OBTAINED ARE …

    greece Repository record

  15. Systematic evaluation of laying hen exposure to atmospheric ammonia

    Tucker, Christina MarieUniversity of Illinois at Urbana-Champaign2021

    Maintaining low atmospheric ammonia (NH3) concentrations in laying hen housing is a well-known challenge and recently has become the center of legislation for animal housing. In the winter months, poultry farm managers have to balance indoor temperature and environment (including atmospheric …

    uiuc Repository record

  16. Comparing the responses of nitrifiers to differing ammonia loadings

    Anderson, Blake W.University of Illinois at Urbana-Champaign2011

    … Sanitary plant (Danville, IL) was fed 10 mg NH3-N/L per cycle of separated swine manure to allow the biomass to adapt to a new influent in a sequencing batch reactor. The biomass was then separated into three reactors. A control reactor was exposed to 10 mg NH3-N/L . A medium stress reactor …

    uiuc Repository record

  17. Ammonia emission from fertiliser application : quantification techniques and mitigation strategies

    Sanz Cobeña, AlbertoAgronomos2010

    … de nitrógeno (N) por volatilización de amoniaco (NH3) pueden llegar a alcanzar el 70% del N aplicado en al ámbito agrícola, variando en función de las condiciones de manejo del cultivo, climáticas y del suelo. Este hecho, además de una pérdida notable en la efectividad del fertilizante aplicado, …

    upm Repository record

  18. Understanding of Ammonia Transport In Pem Fuel Cells

    Jung, Myunghee

    <p>This dissertation investigated ammonia (NH3) as a fuel contaminant to the anode in Proton Exchange Membrane Fuel Cells (PEMFCs). Since NH3 is fed to the anode in a gas phase and transferred to the cathode, the effect of a contaminant is distributed through MEA and quite complicated. This study …

    south-carolina Repository record

  19. Adaptive PI control of NOx̳ emissions in a Urea Selective Catalytic Reduction System using system identification models

    Ong, Chun YangMassachusetts Institute of Technology2009

    … first order transfer function model.Using Stored NH3 as the output, and Excess NH3,in as input, a systems identification approach was adopted to estimate the values of k and T, the parameters for the transfer function. A family of -these parameter values was determined as the operating conditions …

    mit Repository record

  20. Características físico-químicas do carvão vegetal oxidado e seu efeito nas perdas e suprimento de nitrogênio em mistura com ureia

    Paiva, Diogo Mendes deUniversidade Federal de Viçosa2014

    … dinâmica da ureia no solo resulta na produção de NH3, que quando aplicada superficialmente tem favorecida sua perda para a atmosfera. Este fato tem sido muito explorado no intuito de reduzir tais perdas e consequentemente aumentar a eficiência agronômica e econômica da ureia. A utilização de …

    brazil-ufv Repository record

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