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Adsorption of Ammonia from Aqueous Solution Using Zeolite-Attapulgite Nano-Pore Structure Ceramisite
Nano-Pore Structure Zeolite-Attapulgite
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2011/11/15
Zeolite-attapulgite nano-pore structure ceramisite was prepared using natural zeolite and attapulgite through compounding, granulation and calcination.After elementary characterization of this ceramis...
Collection of Indonaphthol Blue on a Membrane Filter for the Spectrophotometric Determination of Ammonia with 1-Naphthol and Dichloroisocyanurate
Collection Indonaphthol Blue Membrane Filter
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2010/9/14
In order to determine ammonium ion in water samples, we propose a method based on the Berthelot reaction of ammonia with 1-naphthol and dichloroisocyanurate to form an indophenol blue derivative and c...
Field inter-comparison of eleven atmospheric ammonia measurement techniques
Field inter-comparison eleven atmospheric ammonia measurement techniques
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2010/2/8
Eleven instruments for the measurement of ambient concentrations of atmospheric ammonia gas (NH3), based on eight different measurement methods were inter-compared above an intensively managed agricul...
Impact of seawater pCO2 on calcification and Mg/Ca and Sr/Ca ratios in benthic foraminifera calcite: results from culturing experiments with Ammonia tepida
seawater pCO2 calcification and Mg/Ca and Sr/Ca ratios benthic foraminifera calcite culturing experiments Ammonia tepida
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2010/1/21
Evidence of increasing concentrations of dissolved carbon dioxide, especially in the surface ocean and its associated impacts on calcifying organisms, is accumulating. Among these organisms, benthic a...
"Processes controlling the exchange of ammonia between grassland and the atmosphere (GRAMINAE) – results from the Braunschweig field experiment"
ammonia grassland and the atmosphere the Braunschweig field experiment
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2010/1/21
"Processes controlling the exchange of ammonia between grassland and the atmosphere (GRAMINAE) – results from the Braunschweig field experiment".
Dynamics of ammonia exchange with cut grassland: synthesis of results and conclusions of the GRAMINAE Integrated Experiment
ammonia exchange cut grassland the GRAMINAE Integrated Experiment
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2010/1/21
Improved data on biosphere-atmosphere exchange are fundamental to understanding the production and fate of ammonia (NH3) in the atmosphere. The GRAMINAE Integrated Experiment combined novel measuremen...
Physiological controls on seawater uptake and calcification in the benthic foraminifer Ammonia tepida
Physiological controls seawater uptake calcification benthic foraminifer Ammonia tepida
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2010/1/21
To analyze the relation between seawater uptake and calcification, we incubated juveniles of the benthic foraminifer Ammonia tepida with various fluorescent probes and visualised them afterwards with ...
Inter-comparison of ammonia fluxes obtained using the Relaxed Eddy Accumulation technique
Inter-comparison ammonia fluxes Relaxed Eddy Accumulation technique
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2010/1/21
The exchange of Ammonia (NH3) between grassland and the atmosphere was determined using Relaxed Eddy Accumulation (REA) measurements. The use of REA is of special interest for NH3, since the determina...
Corrigendum to “The role of ammonia in sulfuric acid ion induced nucleation”published in Atmos. Chem. Phys., 8, 2859–2867, 2008
ammonia sulfuric acid ion nucleation
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2009/10/9
We have found some numerical errors in our paper “The
role of ammonia in sulfuric acid ion induced nucleation”
by I. K. Ortega et al. (Atmos. Chem. Phys., 8, 2859–
2867, 2008). We discovered that i...
Modelling the impacts of ammonia emissions reductions on North American air quality
ammonia emissions reductions North American air quality
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2009/10/9
A unified regional air-quality modelling system (AURAMS) was used to investigate the effects of reductions in ammonia emissions on regional air quality, with a focus on particulate-matter formation. T...
Ammonia sources and sinks in an intensively managed grassland canopy
Ammonia sources sinks grassland canopy
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2010/1/21
Grasslands represent canopies with a complex structure where sources and sinks of ammonia (NH3) may coexist at the plant level. Moreover, management practices such as mowing, hay production and grazin...
SURFATM-NH3:a model combining the surface energy balance and bi-directional exchanges of ammonia applied at the field scale
SURFATM-NH3 surface energy balance bi-directional exchanges ammonia field scale
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2010/1/20
A new biophysical model SURFATM-NH3, simulating the ammonia (NH3) exchange between terrestrial ecosystems and the atmosphere is presented. SURFATM-NH3 consists of two coupled models: (i) an energy bud...
Ammonia in positively charged pre-nucleation clusters: a quantum-chemical study and atmospheric implications
positively charged pre-nucleation clusters quantum-chemical study atmospheric implications
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2009/6/22
The quantum-chemical treatment of pre-nucleation clusters consisting of atmospheric nucleation precursors is critically important for the understanding of the molecular nature of atmospheric nucleatio...
Modeling the Dust and Ammonia Emission in the G 31.41 + 0.31 Hot Molecular Core
G 31.41 + 0.31 Hot Molecular Core Ammonia Emission
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2009/6/15
Modeling the Dust and Ammonia Emission in the G 31.41 + 0.31 Hot Molecular Core。
Ammonia fluxes in relation to cutting and fertilization of an intensively managed grassland derived from an inter-comparison of gradient measurements
Ammonia fluxes cutting fertilization grassland inter-comparison gradient measurements
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2010/1/20
Quantification of ammonia (NH3) land-atmosphere exchange is required for atmospheric modelling and assessment of nitrogen deposition, yet flux measurement methods remain highly uncertain. To address t...