Transport coefficients at Metastable Densities from models of Generalized Hydrodynamics

In the present work we compute the enhancement in the long time transport coefficients due to correlated motion of fluid particles at high density. The fully wave vecor dependent extended mode coupling model is studied with the inclusion of an additional slow variable of the defect density for the amorphous system. We use the extremely slow relaxation of the density correlation function observed in the light scattering experiments on colloids to estimate the input parameters for the model The ratio of long time to short time diffusion coefficient is studied around the the peak of the structure factor.Comment: 17 pages, 8 figure

Temperature dependence of the Power law exponent of relaxation in a supercooled Liquid

The dynamics of Lennard-Jones fluid is studied through extended mode coupling theory (MCT) with the inclusion of the slow mode of defect density. Inclusion of defect density facilitates the liquid like state for temperatures much lower than predicted from ideal MCT. From the present model the temperature dependence of the power law exponent is obtained at a {\em constant pressure}. We have also computed the wave number dependence of the power law exponent.Comment: 10 pages, 6 figure

Fragility and Boson Peak formation in a Supercooled Liquid

We analyze results for the Boson Peak from the neutron time of flight spectroscopy data on Ge-As-Se, and Raman spectra data on m-TCP and OTP, using a recent mode coupling model that takes into account the coupling of density fluctuations with vibrational modes in presence of defects in the supercooled state. From the experimental results for different materials we observe that for more fragile systems characterized by increasing fragility parameter m, a slower relaxation of the defect-density correlation is needed to give rise to the observed peak in the spectra.Comment: 6 pages, 5 figure

Packet flow analysis in IP networks via abstract interpretation

Static analysis (aka offline analysis) of a model of an IP network is useful for understanding, debugging, and verifying packet flow properties of the network. There have been static analysis approaches proposed in the literature for networks based on model checking as well as graph reachability. Abstract interpretation is a method that has typically been applied to static analysis of programs. We propose a new, abstract-interpretation based approach for analysis of networks. We formalize our approach, mention its correctness guarantee, and demonstrate its flexibility in addressing multiple network-analysis problems that have been previously solved via tailor-made approaches. Finally, we investigate an application of our analysis to a novel problem -- inferring a high-level policy for the network -- which has been addressed in the past only in the restricted single-router setting.Comment: 8 page

A Study on the Revenue Generation Trend of Thiruvallur and Thiruttani Taluks (Viz., Thiruppasur, Siruvanoor, Thiruvallur and Agoor and Pattabiramapuram Villages of Thiruttani) of Tamil Nadu+

Tamilnadu is one of the economically developed states in India which has 32 districts taluks in hundreds and villages in thousands But lots of studies on Tamilnadu s regional development have found a wide disparity in economic development across the state The North part of Tamilnadu is a comparatively backward region in general and the districts like Dharmapuri Villupuram Tiruvannamalai and Thiruvallur in particular As a result it is of special importance and essential to review the rural local bodies finances with reference to backward district in general and Thiruvellur district in particular in the wake of 73rd constitutional amendmen