Basanti Devi College is the first government sponsored Girls college in Kolkata and was founded by the Government of West Bengal in 1959 with the mission of empowerment of women. Named after the eminent freedom fighter Basanti Devi, the first lady to be imprisoned under British Rule for being involved in the war of Independence of India. It is affiliated with the University of Calcutta.
The radii of the exotic hadrons like tetraquarks and pentaquarks are studied considering diquark-anti diquark configuration of tetraquarks and diquark-diquark-antiquark picture of pentaquarks. Diquarks are described as composite fermions. Binding energies are calculated using the ground state masses of the tetraquarks and pentaquarks, as estimated within the framework of the Flux Tube model. The leptonic decay widths for tetra quarks are studied using van-Royen Weisskoff formula. The decay widths are found to be small, ranging from 10^-3 to 10^-7 MeV, as expected from experimental results. The form factors of pentaquarks have been studied with the computed radii for different ranges of momentum transfer. The study is important for understanding the properties of newly discovered exotic particles.
In the arena of pattern recognition, surgical facial recognition (SFR) is an important research topic. The surgical face, which is unaltered by plastic surgery, has been difficult for some algorithms to recognize because of differences in skin texture and illumination. The issue of enucleation operations is difficult, but it needs to be re-examined from both hypothetical and investigational perspectives. This study examines the effectiveness of support vector machines (SVM) for classification, PCA-based methods for dimensionality reduction, and textural image features for surgical face identification. This method is established mainly in two phases. First is all surgical training image converts into textural image features (i.e LBP and LTP) images. After that PCA and 2DPCA applied for dimension reduction as well as feature extraction. Textural characteristics are used in this investigation because they are strongly linked to improvements in surgical face recognition. Various global and local enucleation operations were among the techniques that were tried on 900 plastic surgery faces. The investigational results demonstrate that the LTP with 2DPCA procedure achieves competitive performance, outperforming other approaches in plastic surgery database. Moreover, our methods explain the strengths, restrictions, and probable areas for enhancement.
We have investigated the spectroscopy of the different exotic tetraquarks such as K, f_0 , D, Y, Z_s , Z_c , T_cc , T_cc , X_c etc. embedded in a strongly interacting medium with the variation of density and temperature of the medium. The momentum and density dependent potential and power law type of temperature scaling play crucial roles in this regard. The tetraquarks have been treated as composite system of diquark-antidiquark in the context of Composite Fermion (CF) quasiparticle model and their effective masses have been estimated. Moreover, when these tetraquarks are embedded in a strongly interacting medium, the density and the temperature of the medium affect their masses. These variations of masses have been explored in detail and have been displayed in the graphs. They have also been compared with works of others.
The main objective of this article is to study 𝒬 -flat perfect fluid spacetime. We examine a spacetime with a vanishing 𝒬 -curvature tensor and investigate some of its geometric properties. We also explored fluid spacetime characterized by a divergence-free 𝒬 -curvature tensor. Further, we examine dust fluid spacetime with a vanishing 𝒬 -curvature tensor. We have also examined spacetime filled with a perfect fluid under a purely electromagnetic distribution. Finally, we have characterized the h-almost Ricci-Bourguignon soliton on super quasi-Einstein spacetime.
