The abelian sandpile models feature a finite abelian group G generated by the operators corresponding to particle addition at various sites. We study the canonical decomposition of G as a product of cyclic groups G = Zd1 ×Zd2 ×Zd3 · · ·×Zdg where g is the least number of generators of G, and di is a multiple of di+1. The structure of G is determined in terms of the toppling matrix ∆. We constru...

The predisposition of a slope to generate rockfalls is related the intensity rock mass jointing and geometric arrangement discontinuities intersecting face. With increasing use terrestrial laser scanner (TLS) in surveying, methods have been proposed semi-automatically extract spatial properties outcropping from high-resolution topographic data. present paper builds upon one such (named DiAna), ...

Mid-pregnancy shearing has been promoted in New Zealand as a technique to improve both lamb birthweights and survival. In the literature mid-pregnancy shearing has resulted in an increase lamb birthweight. However, the results have been inconsistent in magnitude and birthrank specificity. Additionally the mechanism responsible for the birthweight response has not been identified. The objectives...

a result of dixon‎, ‎evans and smith shows that if $g$ is a locally (soluble-by-finite) group whose proper subgroups are (finite rank)-by-abelian‎, ‎then $g$ itself has this property‎, ‎i.e‎. ‎the commutator subgroup of $g$ has finite rank‎. ‎it is proved here that if $g$ is a locally (soluble-by-finite) group whose proper subgroups have minimax commutator subgroup‎, ‎then also the commutator s...

The aim of this study was to establish the influence of shearing in dairy sheep during summer season. Several physiological and haematological parameters, which are closely related to thermoregulatory potential, have been investigated with the purpose to assess shearing influence on thermoregulation. Forty dairy sheep, clinically healthy and well-fed, were used. They were divided into two group...

OBJECTIVE To study the degradation and basic fibroblast growth factor (bFGF) release activity of bFGF - poly(lactic-co-glycolic-acid) microsphere (bFGF-PLGA MS) under stress in vitro, including the static pressure and shearing force-simulating mechanical environment of the joint cavity. METHOD First, bFGF-PLGA MSs were created. Meanwhile, two self-made experimental instruments (static pressur...

Let \(S_{g,n}\) be an oriented surface of genus g with n punctures, where \(2g-2+n>0\) and \(n>0\). Any ideal triangulation induces a global parametrization the Teichmüller space \(\mathcal {T}_{g,n}\) called shearing coordinates. We study asymptotics number mapping class group orbits respect to standard Euclidean norm The result is based on works Mirzakhani.

In order to analyze the slope stability in open-pit mines, the structural parameters of rock mass such as persistence and spatial orientation of discontinuities are characterized through field surveys, which involve spending high costs and times as well as posing high risks of rock toppling and rock fall. In the present work, a new application of terrestrial digital photogrammetry is introduced...