17 Nitrogen pollution affects many peatlands with consequences for their biodiversity and ecosystem 18 function. Microorganisms control nutrient cycling and constitute most of the biodiversity of peatlands 19 but their response to nitrogen is poorly characterised and likely to depend on the form of deposition. 20 Using a unique field experiment we show that ammonia exposure at realistic point s...

We consider deformations in R3 of an infinite general nanotube of atoms where each atom interacts with all the other through a two-body potential. We compute the effect of an external force applied to the nanotube. At the equilibrium, the positions of the atoms satisfy an Euler-Lagrange equation. For large classes of potentials (including Lennard-Jones potential) and under suitable stability as...

The intersection type assignment system IT uses the formulas of the negative fragment of the predicate calculus (LJ) as types for the λ-terms. However, the deductions of IT only correspond to the proper sub-set of the derivations of LJ, obtained by imposing a metatheoretic condition about the use of the conjunction of LJ. This paper proposes a logical foundation for IT. This is done by introduc...

A number of different models have been suggested for detecting earnings management but the linear regression-based model presented by Jones (1991) is the most frequently used. The underlying assumption with the Jones model is that earnings are managed through accounting accruals. Typically, the companies for which earnings management is studied are grouped based on their industries. It is thus ...

This paper presents a new algorithm called PGSL Probabilistic Global Search Lausanne. PGSL is founded on the assumption that optimal solutions can be identified through focusing search around sets of good solutions. Tests on benchmark problems having multi-parameter non-linear objective functions revealed that PGSL performs better than genetic algorithms and advanced algorithms for simulated an...

An interatomic potential based semiclassical theory is proposed to predict the concentration and potential profiles of a Lennard-Jones (LJ) fluid confined in a channel. The inputs to the semiclassical formulation are the LJ parameters of the fluid and the wall, the density of channel wall atoms, and the average concentration of the fluid inside the channel. Using the semiclassical formulation, ...

We consider a classical dilute particle system in a large box with pairinteraction given by a Lennard-Jones-type potential. The inverse temperature is picked proportionally to the logarithm of the particle density. We identify the free energy per particle in terms of a variational formula and show that this formula exhibits a cascade of phase transitions as the temperature parameter ranges from...

The van de Waals potential energy between two parallel infinitely long radially deformed single-walled carbon nanotubes is calculated within the Lennard-Jones approximation. The radial deformations are described with analytical shapes in order to facilitate the calculations. The most preferred mutual orientations are determined in all considered cases in terms of their potential well depths, eq...

Articles you may be interested in Meso-level simulation of gas hydrate dissociation inlow-permeability sediments Theor. Dissociation pressures of some gas hydrates have been evaluated using the Lennard-Jones 12-6 28-7 and Kihara potentials in the Lennard-Jones-Devonshire cell model. The Lennard-Jones 28-7 pot~ntial 'gives the least satisfactory results. The Lennard-Jones 12-6 potential works sa...

The shape and shift of the 535.0 nm thallium line resulting from the photodissociation of thallium iodide perturbed by krypton and xenon were investigated at low densities. The Doppler and collision broadening components of the line shape have been determined. The linear dependence of both the Lorentzian half-width and the shift on the perturbing gas density was found and interpreted in terms o...