Authors: Brian P. Tighe, R.P. Adrianne R. T. van Eerd, and Thijs J.(2010-05-20)
arXiv:0803.0907
Phys. Rev. Lett, 100, 238001 (2008)
Recommended with Commentary by R.P. Behringer, Duke University - to be published in: Journal Club for Condensed Matter Physics, 29-9-2009
Granular materials such as sand have both liquid-like and solid-like properties similar to both liquids and solids. Dry sand in an hour-glass can flow just like water, while sand in a sand castle closely resembles a solid. ...
AquaEnv is an integrated development toolbox for aquatic chemical model generation focused on (ocean) acidification and CO2 air-water exchange. It contains all elements necessary to model the pH, the related CO2 air-water ...
AquaEnv is an integrated software package for aquatic chemical model generation
focused on ocean acidification and antropogenic CO2 uptake. However, the
package is not restricted to the oceans: it calculates, converts, and ...
AquaEnv is an integrated software package for aquatic chemical model generation
focused on ocean acidi cation and antropogenic CO2 uptake. However, the
package is not restricted to the oceans: it calculates, converts, and ...
Mechanistic understanding of factors governing pH is essential, given growing
concern about ocean acidi cation. The classical approach to carbonate chemistry
and pH calculations is centred around the alkalinity concept. ...
These models implement the implict, explicit and fractional stoichiometric pH modelling methods described in Chapter 5 of the thesis. The graphs presented in this Chapter have been generated using this model code.
Mechanistic understanding of factors governing pH is essential, given growing
concern about ocean acidification. The classical approach to carbonate chemistry
and pH calculations is centred around the alkalinity concept. ...
A method to quantify the influence of kinetically modelled biogeochemical processes on the pH of an ecosystem with time variable acid-base dissociation constants is presented and applied to the heterotrophic, turbid Scheldt ...
We present, by means of a simple example, a comprehensive step-by-step procedure
to consistently derive a pH model of aquatic systems. As pH modelling is
inherently complex, we make every step of the model generation process ...
A 1-D, pelagic, reactive-transport model of a completely mixed, turbid, heterotrophic
estuary { the Scheldt estuary { is presented. The model resolves major
carbon and nitrogen species and oxygen, as well as pH. The model ...
This model is the subject of Chapter 4 of the thesis and the related publication. It has been used to generate model output and plots investigating and quantifying the pH in the Scheldt estuary.
A method to quantify the influence of kinetically modelled biogeochemical processes on the pH of an ecosystem with time variable acid-base dissociation constants is presented and applied to the heterotrophic, turbid Scheldt ...
These models demonstrate the pH modelling method and the related quantification of the influences of processes on pH during different model scenarios as described in Chapter 2 of the thesis and the related publication. The ...
We present, by means of a simple example, a
comprehensive step-by-step procedure to consistently derive
a pH model of aquatic systems. As pH modelling is inherently
complex, we make every step of the model generation
process ...
We numerically study the distribution P(f) of contact forces in frictionless bead packs, by averaging over the ensemble of all possible force network configurations. We resort to umbrella sampling to resolve the asymptotic ...
This model is the subject of Chapter 2 of the thesis and the related publication. It has been used to generate model output and plots investigating the carbon and nitrogen cycles in the Scheldt estuary.
A 1-D, pelagic, reactive-transport model of
a completely mixed, turbid, heterotrophic estuary – the
Scheldt estuary – is presented. The model resolves major
carbon and nitrogen species and oxygen, as well as pH. The
model ...
We numerically study the distribution P(f) of contact forces in frictionless bead packs, by averaging over the ensemble of all possible force network configurations. We resort to umbrella sampling to resolve the asymptotic ...
A long-standing issue in the area of granular media is the tail of the force distribution,
in particular whether this is exponential, Gaussian, or even some other form.
We demonstrate that conservation of the total area ...