Hall Process Is Historic Chemical Landmark

Brookhaven Lab named historic chemical landmark.

Historic development of chemical notations

The gradual development of SYSTEMS of typed symbols for describing chemical structures and substrunures (radicals) is traced from its beginning in 1787. Such symbols are emphasized because *computers are symbol processors par excellence." Computers are the central tools of the Information Age, but future trends in the management of chemical structure information are likely to reflect deeply roo...

Subset Selection for Landmark Modern and Historic Images

An automatic mechanism for the selection of image subset of modern and historic images out of a landmark large image set collected from the internet is designed in this paper. This selection depends on the extraction of dominant features using Gabor filtering. These features are selected carefully from a preliminary image set and fed into a neural network as a training set. The mechanism collec...

Earliest historic reference of 'tinnitus' is controversial.

Tinnitus, that is defined as 'ringing in the ear', is and has probably always been a very common phenomenon in the health history of mankind. A variety of pathomechanisms for its onset has been proposed in the past and this trend sees no stopping. Precise pathomechanisms still remain unclear. From the historical point of view, tinnitus is a very interesting topic but there is a lack of scientif...

Is Hall Conductance in Hall Bar Geometry a Topological Invariant ?

A deep connection between the Hall conductance in realistic situation and a topological invariant is pointed out based on von-Neumann lattice representation in which Landau level electrons have minimum spatial extensions. We show that the Hall conductance has no finite size correction in quantum Hall regime, but a coefficient of induced Chern-Simons term in QED 3 has a small finite size correct...