Nonmetal–metal transition in Ban clusters

Structures and its evolution of Ban ( n = 2 ∼ 14 ) clusters

We have studied the atomic structure and the electronic properties of Ban clusters by the ab initio molecular dynamics method. We find that a structural transition to the bulk-like structure begins at Ba9 cluster, and the structures of the clusters are transferred to be icosahedral-like around n = 13. The relatively high stability for Ba4, Ba10 and Ba13 clusters are observed.

Hyperfine Transition in Clusters of Galaxies

We present a search for the hyperfine transition of the Fe ion at 3.071 mm in clusters of galaxies with the ATNF Mopra telescope. The results are compared with a realistic estimate of the peak brightness temperature of the line in a cooling flow cluster A85, using the available X-ray data.

Structural transition in (C60)n clusters

To ban or not to ban?

The past four years have seen a steady increase in the number of companies that offer direct-to-consumer (DTC) genetic testing services and in the number of such tests for genetic risk factors, including a wide range of diseases and other non-disease-related traits. These companies sell their tests outside the traditional healthcare setting and often do not involve healthcare professionals for ...

Transition Dynamics of Frictional Granular Clusters

Force chains, the primary load-bearing structures in dense granular materials, rearrange in response to applied stresses and strains. These self-organized grain columns rely on contacts from weakly stressed grains for lateral support to maintain and find new stable states. However, the dynamics associated with the regulation of the topology of contacts and strong-versus-weak forces through such...