نتایج جستجو برای: water chemistry

تعداد نتایج: 649317  

Journal: :Faraday discussions 2013
Joseph L Woo Derek D Kim Allison N Schwier Ruizhi Li V Faye McNeill

Organic chemistry in aerosol water has recently been recognized as a potentially important source of secondary organic aerosol (SOA) material. This SOA material may be surface-active, therefore potentially affecting aerosol heterogeneous activity, ice nucleation, and CCN activity. Aqueous aerosol chemistry has also been shown to be a potential source of light-absorbing products ("brown carbon")...

Journal: :journal of physical & theoretical chemistry 2008
s. abedini khorrami sh. moradi p. aberomand azar e. pournamdari

the intermolecular forces between water molecules are of great importance in many areas of chemistry including solvation, solution chemistry, and biochemistry. as a result of this (h2o)n systems have received a great significant of attention, both experimental and theoretical. all calculation of this study are carried out by gaussian 98 soft ware. geometry optimization for each cluster were be ...

2008
Thomas J. Algeo J. Barry Maynard

Patterns of sedimentary trace-metal variation can provide information not only about benthic redox conditions, but also about other water-mass properties in ancient marine depositional systems. Trace metals such as Mo, U, V, and Re display conservative concentration profi les in the global ocean but varying concentration profi les in modern anoxic silled basins (e.g., the Black Sea, Cariaco Bas...

2011
M. Petrovic MIRA PETROVIC

1Dept.of Environmental Chemistry, Institute of Environmental Assessment and Water Studies, Spanish Council of Scientific Research, Barcelona, Spain 2Catalan Institution for Research and Advanced Studies, Barcelona, Spain 3Catalan Institute for Water Research, Scientific and Technological Park of the University of Girona, Girona, Spain *King Saud University, Riyadh, Kingdom of Saudi Arabia e-mai...

2007
Srdjan Nešić

The state-of-the-art in modelling of internal corrosion of oil and gas pipelines made from carbon steel is reviewed. The review covers the effects of: electrochemistry, water chemistry, formation of protective scales and scales, temperature, flow, steel, inhibition, water condensation, glycol/methanol and localized attack. Various mathematical modelling strategies are discussed. 2007 Elsevier L...

2003
A. Zahn

The isotope composition of water vapour: A powerful tool to study transport and chemistry of middle atmospheric water vapour Ch. Bechtel and A. Zahn Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany Institute of Meteorology and Climate Research, Forschungszentrum Karlsruhe, Germany Received: 11 June 2003 – Accepted: 16 July 2003 – Published: 28 July 2003 Correspondence to...

2015
Larry J. Paulson John R. Baker L. J. Paulson

Follow this and additional works at: http://digitalscholarship.unlv.edu/water_pubs Part of the Environmental Chemistry Commons, Environmental Engineering Commons, Environmental Health and Protection Commons, Environmental Indicators and Impact Assessment Commons, Environmental Monitoring Commons, Fresh Water Studies Commons, Natural Resources and Conservation Commons, Natural Resources Manageme...

Journal: :Chemical communications 2011
Lucile Bernet Ralte Lalrempuia Wadih Ghattas Helge Mueller-Bunz Laura Vigara Antoni Llobet Martin Albrecht

The catalytic water oxidation activity of mononuclear ruthenium complexes comprising a pyridine-functionalized abnormal triazolylidene ligand can be adjusted by modification of the triazolylidene substituents, which is readily achieved through click-type cycloaddition chemistry, affording some of the most active ruthenium catalysts known thus far for water oxidation (TONs > 400, TOFs close to 7...

Journal: :Chemical communications 2015
Li-Chiang Lin Jongwon Choi Jeffrey C Grossman

We computationally demonstrate that two-dimensional covalent triazine frameworks (CTFs) provide opportunities in water desalination. By varying the chemical building blocks, the pore structure, chemistry, and membrane performance can be designed, leading to two orders of magnitude higher water permeability than polyamide membranes while maintaining excellent ability to reject salts.

G.A. Auöunsson , M. Shakouri,

Impact of Atlantic salmon (Salmo salar) cage culture in Mjoifjordur, Eastern Iceland on the chemistry of the sediment was investigated. Sediment samples were collected using a Shipek grab in December 2003. A core sub-sample was taken from each grab for analyzing total organic matter, total organic carbon, total nitrogen and phosphorus in different depths from three stations at various distances...

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