Results 321 to 330 of about 2,222,500 (385)
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Muon and muonium chemistry: Numerical calculation of residual polarisation
Chemical Physics Letters, 1988Abstract A method for numerical calculation of the residual polarisation of diamagnetic muons and muonic radicals formed by reactions of muonium is described; it has the advantage that complex kinetic situations can be treated exactly. It is applied to fast reactions in solution for which the rate constant is time dependent and to competition between
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Solution Chemistry Effects on Orthophosphate Adsorption by Cationized Solid Wood Residues
Environmental Science & Technology, 2003Adsorption of orthophosphate anions in aqueous solution by cationized milled solid wood residues was characterized as a function of sorbate-to-sorbent ratio (approximately equal to 0.001-2.58 mmol of P/g substrate), pH (3-9), ionic strength, I (no I control; 0.001 and 0.01 M NaCl), reaction time (4 min to 24 h), and in the presence of other competing ...
Krishnapuram G. Karthikeyan +3 more
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Chemistry of Seawater Neutralization of Bauxite Refinery Residues (Red Mud)
Environmental Engineering Science, 2004Bayer process red muds are highly alkaline, and their disposal and potential for reuse are complicated by high concentrations of sodium, high pH, and high alkalinity. Several methods of neutralization of red muds have been reported including: infiltration of rainwater and atmospheric CO2, treatment with strong acids, gypsum addition, and seawater ...
Hanahan, Colleen +5 more
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Morphology and chemistry of projectile residue in small experimental impact craters
Journal of Geophysical Research: Solid Earth, 1983Small‐scale impact craters (5‐7 mm in diameter) were produced with a light gas gun in high purity Au and Cu targets using soda lime glass (SL) and man‐made basalt glass (BG) as projectiles. Maximum impact velocity was 6.4 km/s resulting in peak pressures of approximately 120–150 GPa.
E. Schneider +3 more
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Origin of the residual polarization in muon chemistry studies of solvent mixtures
The Journal of Physical Chemistry, 1981When polarized positive muons are stopped in common chemicals, there is always a residual polarization due to the fraction of muons which immediately enter diamagnetic states. This fraction varies considerably, being 0.17, 0.62, and 1.0 in benzene, cyclohexane, and carbon tetrachloride, respectively. In order to examine the mechanism by which it arises,
Y. C. Jean +4 more
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A Web-Based Model of N Mineralization from Cover Crop Residue Decomposition
Soil Science Society of America Journal, 2018Cover crops can provide substantial quantities of N for subsequent crops, but estimating the amount of N that will be mineralized from residues is challenging.
L. Woodruff +10 more
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Applied Soil Ecology, 2012
Abstract There is increasing interest in removing greater amounts of non-timber residues from forests for use in energy production. As part of a study aimed at elucidating the ecological impacts of these practices in Finland, piles of thinning residues of contrasting mass per unit area were established in 2004 around the base of individual Scots pine
Dighton, J. +12 more
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Abstract There is increasing interest in removing greater amounts of non-timber residues from forests for use in energy production. As part of a study aimed at elucidating the ecological impacts of these practices in Finland, piles of thinning residues of contrasting mass per unit area were established in 2004 around the base of individual Scots pine
Dighton, J. +12 more
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Catalytic pyrolysis of Arab Heavy residue and effects on the chemistry of asphaltene
Journal of Analytical and Applied Pyrolysis, 2010Abstract In an attempt to understand the changes in asphaltene structure during pyrolysis, hydrothermal reactions were performed on Arab Heavy atmospheric residue using FCC catalyst, ZSM-5 zeolite, hydrocracking catalyst (HC-1) and hydroprocessing (NiMo) catalyst in a bench-scale fixed bed reactor.
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Quality assurance (San Diego, Calif.), 1994
Residue chemistry guidelines are designed to determine what the potential residues in food are and how much may be present as a result of pesticide application, so that a tolerance level may be established. Some requirements are established to assist in the enforcement of tolerances by the USDA, FDA, and the states.
C L, Olinger, R D, Schmitt, E, Zager
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Residue chemistry guidelines are designed to determine what the potential residues in food are and how much may be present as a result of pesticide application, so that a tolerance level may be established. Some requirements are established to assist in the enforcement of tolerances by the USDA, FDA, and the states.
C L, Olinger, R D, Schmitt, E, Zager
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