In this paper, the problem of influence society on prevention process illegal logging is considered. Forests and forest plantations are one most important carbon stores planet, however, as a result irrational an industrial scale, even under plausible pretext releasing land for agriculture or infrastructure development, huge environmental damage caused, since nature deprived mechanisms not only ...

The absorbing "ricepile" model with stochastic toppling rules has been numerically studied. Local limited, local unlimited, nonlocal limited, and nonlocal unlimited versions of the absorbing model have been investigated. Transport properties and different dynamical regimes of all of the models have been analyzed, from the point of view of self-organized criticality. Phase transitions between di...

background: sun protection materials have been one of the major concerns in pharmaceutical industry since almost one century ago. various materials have been found to have such an effect but there are still many unknown substances that have not been discovered. objective: to introduce a novel mineral-based sun lotion with considerable uv absorption properties compared to commercially available ...

Nanostructured radar absorbing materials (RAMs) have received steadily growing interest because of their fascinating properties and various applications compared with the bulk or micronized counterparts. These nanostructured materials have increased surface area, number of dangling bond atoms and unsaturated co -ordination on surface lead to interface polarization, multiple scatter and absorbin...

Let G be a group (monoid) with identity e and R commutative Krasner hyperring. In this paper, we introduce the concepts of graded absorbing hyperideals hyperring such as, 2-absorbing hyperideals, n-absorbing subhypermodules. Some basic properties these structures characterizations homogeneous components are proved.

The effect of a cloud layer on top-of-atmosphere (TOA) aerosol radiative forcing is examined by means of a one-dimensional vertical column simulation. To span the range between nonabsorbing and strongly absorbing particles, (NH4)2SO4 and soot aerosols are considered individually and in internal and external mixtures. For a cloud layer embedded within an aerosol layer it is shown that direct aer...