Heritage Institute of Technology

About: Heritage Institute of Technology is a based out in . It is known for research contribution in the topics: Support vector machine & Transconductance. The organization has 581 authors who have published 1045 publications receiving 8345 citations.

Studies on Security Threats in Waste Mobile Phone Recycling Supply Chain in India

Abstract: The presence of different metals and rare earth elements in the smart phones have made waste mobile phone recycling economically suitable. In order to maintain the equilibrium of resource exploitation and enhance resource efficiency, it is important to recycle mobile sustainably. Increasing environmental and data loss threats have enforced several policies to increase the recycling rate. Despite all, a small fraction of waste mobile phones are recycled properly and a significant amount mobile phones are refurbished and repaired which enters the second-hand market. The secondhand market is a critical node in the supply chain of waste mobile phone. The data security issues arise from this area and it varies with the amount of time it spends in the repairing zone. A lot of valuable and sensitive data are saved in storage units of a mobile phone. Improper disposal of waste mobile phone can lead to potential threat of exposing personal information from the devices, including logged in profile details of social networking sites, emails, personal messages, photos etc. This can lead to cyber risks including identity theft, data tampering, information disclosure etc. which may have higher social impact. General issues with data security from ewaste have been reported. Studies focusing on threats from used, lost or improperly discarded mobile phones are scant. In this study, we identify such issues pertaining in the supply chain of waste mobile phones. Possible solutions have been proposed to address these issues. A supply-chain based framework has been proposed which can serve as a prima facie towards development of a detailed solution architecture.

Stabilization of cyclic water tetramers and dimers in the crystal host of 2D coordination networks: electrical conductivity and dielectric studies

Abstract: Water plays a pivotal role in many biological and chemical processes in a living body. Therefore, it is a challenging task to predict a suitable host for confinement of aqua molecules. Here, two new isostructural two-dimensional coordination polymers (2D CPs) {[Zn(fum)(4-nvp)2]·2H2O}n (1) and {[Zn(mes)(4-nvp)2]·H2O}n (2) (H2fum = fumaric acid and 4-nvp = 4-(1-naphthylvinyl)pyridine and H2mes = mesaconic acid) have been synthesized and structurally characterized by single crystal X-ray crystallography (SCXRD). The SCXRD reveals the presence of carboxylate bound cyclic water tetramers and water dimers in compounds 1 and 2 respectively, within rectangular grids of 2D coordination layers. Binding energies of the cavity bound tetramer as well as the dimer have been estimated computationally. The PXRD study of both the compounds shows reversible water desorption and re-absorption upon heating and cooling. The π⋯π and C–H⋯π interactions among the axially bound 4-nvp ligands are responsible for interdigitation of successive 2D coordination layers into a 3D supramolecular architecture. In addition, the impedance study shows that compounds 1 and 2 exhibit interesting temperature dependent dielectric properties.

Impossibility of partial swapping of quantum information

Abstract: It is a well–known fact that a quantum state |ψ(θ, ϕ)〉 is represented by a point on the Bloch sphere, characterized by two parameters θ and ϕ. Here in this work, we find out another impossible operation in quantum information theory. We name this impossibility as 'Impossibility of partial swapping of quantum information'. By this we mean that if two unknown quantum states are given at the input port, there exists no physical process, consistent with the principles of quantum mechanics, by which we can partially swap either of the two parameters θ and ϕ between these two quantum states. In this work, we provided the impossibility proofs for the qubits (i.e. the quantum states taken from two-dimensional Hilbert space) and this impossible operation can be shown to hold in higher dimensions also.

A low cost non-invasive digital signal processor based (TMS320C6713) heart diagnosis system

Abstract: In this paper a novel scheme has been developed to interpret and analyze the heart sound properly so that it can be taken as a heart diagnosis system. For this purpose a preamplifier circuitry is introduced for data acquisition and the DSP KIT (TMS320C6713) is used for data collecting, processing, analyzing and displaying it completely. The DSP starter kit also provides data saving option in PC. After acquiring heart sound data in PC, discrete wavelet transformations at different level are perform to remove the internal noise and to reconstruct the de-noised heart sound signal. Finally, to find out heart disease symptoms, the nature of heart sound components like M1, T1 of S 1 and A2, P2 of s2 are detected using the end point detection technique which is the novelty of this project. MATLAB has been used to study various results related to the heart sound components, their locations, durations, frequencies present, length of cardiac cycle, presence of murmurs etc. In this present work more than fifteen (15) heart sound sample from different persons were examined successfully.

Dyeing of EDTA-Modified Cotton With Reactive Dyes

Abstract: Cotton was modified with disodium salt of ethylene diamine tetra acetic acid (EDTA) in presence of potassium sodium tartrate as the esterification catalyst following a pad-dry-cure technique. Treat...