Carbonic model

Methyltins are less likely than the butyl- and octyl-tins to partition to sediments, soils, and organic carbon. Modelled data for K c suggest much lower capacity for binding to organic carbon than do measured values, often by several orders of magnitude. Measured data have been used in preference to model environmental fate of the compounds. The compounds also bind strongly to clay minerals, montmorillonite in particular. 

GustavssonM, Fredriksson H, Kasemo B, Jusys Z, Jun C, Behm RJ. 2004. Nanostructured platinum-on-carbon model electrocatalysts prepared by colloidal lithography. J Electroanal Chem 568 371-377. 

CARBONS IN THE CATHODES OF LITHIUM-ION BATTERIES ALTERNATIVE FORMS OF Mn02, CATHODE / CARBON MODELING... 

Our multi-level carbon model atom is adapted from D. Kiselman (private communication), with improved atomic data and better sampling of some absorption lines. The statistical equilibrium code MULTI (Carlsson 1986), together with ID MARCS stellar model atmospheres for a grid of 168 late-type stars with varying Tefj, log g, [Fe/H] and [C/Fe], were used in all Cl non-LTE spectral line formation calculations, to solve radiative-transfer and rate equations and to find the non-LTE solution for the multi-level atom. We put particular attention in the study of the permitted Cl lines around 9100 A, used by Akerman et al. (2004). 

The Rothamsted Carbon Model (RothC) uses a five pool structure, decomposable plant material (DPM), resistant plant materials (RPM), microbial biomass, humified organic matter, and inert organic matter to assess carbon turnover (Coleman and Jenkinson 1996 Guo et al. 2007). The first four pools decompose by first-order kinetics. The decay rate constants are modified by temperature, soil moisture, and indirectly by clay content. RothC does not include a plant growth sub-module, and therefore NHC inputs must be known, estimated, or calculated by inverse modeling. Skjemstad et al. (2004) tested an approach for populating the different pools based on measured values. 

Stereoview of the a-carbon models of the subunits of s-malic dehydrogenase (sMDH) and lactic dehydrogenase (LDH). 

Stereoscopic view of an a-carbon model of an insecticyanin subunit with the bound biliverdin. The N and C termini are labeled NH3+ and COO", respectively. The positions of several amino acid residues are indicated. 

Plate 10 Alpha-carbon model of ALBP built into electron-density map. (For discussion, see Chapter 7.)... 

Figure 3.1 Decomposition and carbon turnover in soil A conceptual diagram summarizing the main elements of the initial Rothamsted carbon model (Jen-kinson 1971). To this we have added other small, but potentially functionally important, compartments the volatile organic carbon and the dissolved organic carbon derived during both decomposition of litter and exudation from plants. An inert organic matter pool is added as this appears in later versions of the Rothamsted model.

Fig. 23 Bridging biological space. The overlap of epothilone B (cyan carbons) and PTX (green carbons) models derived from EC reveal shared anchors between the exchangeable nucleotide site through H227 and the truncated B9-B10 loop of the beta tubulin site. Perhaps rigidifying this vector across the site is of greater importance to the MT stabilizing effect than picking up interactions within the deep hydrophobic pocket...

FIG. 17. Energy levels of carbon model with and without adsorbed Ag2. HOMO-highest occupied molecular orbital. 

FIG. 18. Energy levels of Pd clusters adsorbed on carbon model. 

A carbonization model results if it is assumed that, apart from distillation, the carbonization processes of the pyrolysis can be described by three parameters ... 

The aim of this work is to answer the follow questions (i) What is the maximum adsorption capacity of carbonaceous microporous solids and, (ii) Why CMS can not be prepared with a micropore volume higher than 0.3 cc/g . In doing that, micropore volume has been calculated in a series of very simple microporous carbon models, described as assemblages of slit-shaped pores, and using the parameters of graphitic structure (interlayer spacing and density) and the pore structure (pore width and micropore walls thickness). 

In order to develop a microporous carbon model, we will accept the following characteristics of adsorption process on active carbon described by different authors ... 

Ocean carbon models. Models of the ocean carbon cycle include three processes that affect the uptake and redistribution of carbon within the ocean the air-sea transfer of CO2, the chemistry of CO2 in seawater, and the circulation or mixing of the ocean s water masses. 

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