Application of knowledge-driven method for debris-slide susceptibility mapping in regional scale

Debris-slides are a frequent hazard in fragile decomposed metasedimentary rocks in the Anakeesta rock formation in Great Smoky Mountain National Park. The spatial distribution of an existing debris-slide area could be used to prepare susceptibility map for future debris-slide initiation zones. This work aims to create a debris-slide susceptibility map by using a knowledge-driven method in a GIS platform in Anakeesta formation of Great Smoky Mountain National Park. Six geofactors, namely, elevation, annual rainfall, slope curvature, landcover, soil texture and various slope failure modes were used to create the susceptibility map. Debris- slide locations were mapped from the satellite imagery, previous studies, and field visits. A Weighted Overlay Analysis was performed in order to generate the final susceptibility map, where individual classes of geofactors were ranked and were assigned weights based on their influence on debris-slide. The final susceptibility map was classified into five categories: very low, low, moderate, high and very high susceptible zones. Validation of the result shows very high category predicted ~10%, high and moderate categories predicted 75.5% and ~14.5% of the existing debris-slide pixels respectively. This study successfully depicts the advantage and usefulness of the knowledge-driven method, which can save considerable amount of time and reduce complicated data analysis unlike statistical or physical based methods. However, the accuracy of the model highly depends on the researcher’s experience of the area and selection of respective geofactors

Adjacency spectra of some subdivision hypergraphs

Here, we define a subdivision operation for a hypergraph and compute all the eigenvalues of the subdivision of regular and certain non-regular hypergraphs. In non-regular hypergraphs, we investigate the power of regular graphs, various types of hyperflowers, and the squid-like hypergraph. Using our subdivision operation, we also show how to construct non-regular non-isomorphic cospectral hypergraphs

Dynamics of an atom cavity field system in interacting Fock space

In this paper, we investigate one-time passing of a $V$-type three-level atom through a single-mode interacting field in a cavity. We extend the idea of elementary Jaynes-Cummings model by assuming that the field vector belongs to interacting Fock space. In the process, we arrive at a state vector which will be analyzed to study the nonclassicality of the evolved state of the system.Comment: 14 pages, 5 figure

Investigation on Virtual Reference Services (VRS) provided by selected Universities from Tamil Nadu

With the advancement of Information Communication and Technology (ICT) development is taking place at a rapid rate. Hence in order to stay in the limelight one must keep themselves updated with the latest technological trend. This chapter focuses on the Virtual Reference Service (VRS) provided by eight universities from Tamil Nadu. Various services that can be provided under VRS have been identified based on minimal cost and maximum benefit approach. We have made a comparison of these Universities right from their NAAC grade to NIRF ranking 2019 and eventually the VRS. The amount of funds utilized has also been discussed in comparison to their ranking received. Based on this study one can get a clear idea about the status of VRS provided by these universities