β Scribed by A. James Low
No coin nor oath required. For personal study only.
The effects of long periods (up to many centuries) under grass on 34 mineral soils have been studied by contrasting their physical and other characteristics with the same soils which had a predominantly arable history in living memory. The old grassland soils contain more organic matter (as measured by total nitrogen), more total pore space, aggregates of greater waterβstability, hold more water both at the sticky point and the lower plastic limit, contain more worms but have a smaller bulk (or apparent) density.
A highly significant (P = 0.7%) correlation was shown between the nitrogen level and the clay content of the old grassland soils. A significant (P = 1.5%) correlation was found between the waterβstability of the old grassland soil aggregates and their clay content but not with the nitrogen level (P = 5.3%).
π SIMILAR VOLUMES
The use of spline functions to approximate the "effective" interparticle potentials that result from taking into account all image particles in periodic-boundary-condition Monte Carlo or molecular dynamics simulations is described. Such approximations are intrinsically very "smooth," easy to constru
The durability of the mechanical improvements brought by lime once the involved earth structures are exposed to long-term hydraulic conditions (long-term water contact and water circulation) is still under discussion. This paper aims at assessing i) the impact of such hydraulic conditions on the mec
## Abstract The effect of the box shape on the dynamic behavior of proteins simulated under periodic boundary conditions is evaluated. In particular, the influence of simulation boxes defined by the nearβdensest lattice packing (NDLP) in conjunction with rotational constraints is compared to that o