Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

The growing demand of digital technologies are increasing the quality of human life at an unprecedented rate, but at the same time managing e-waste from these digital technologies are emerging as one of the biggest challenges for most of the industrial and government bodies. Collection of E-waste causes various problems such as environmental effluence, resource scarcity and it also results in developing various health hazards to human population. In this paper, we propose a framework using wireless sensor network and augmented reality to detect and mark the various high pollutant zone, which would save people from being exposed to hazardous environment. © Springer Nature Switzerland AG 2020.

Department of Software and Systems Engineering

School of Information Technology and Engineering

Vellore Campus

Department of Multimedia

School of Design

Lecture Notes on Data Engineering and Communications Technologies

Managing and Monitoring E-Waste Using Augmented Reality in India

Purpose: This paper aims to focus on research work related to metamaterial-based sensors for material characterization that have been developed for past ten years. A decade of research on metamaterial for sensing application has led to the advancement of compact and improved sensors. Design/methodology/approach: In this study, relevant research papers on metamaterial sensors for material characterization published in reputed journals during the period 2007-2018 were reviewed, particularly focusing on shape, size and nature of materials characterized. Each sensor with its design and performance parameters have been summarized and discussed here. Findings: As metamaterial structures are excited by electromagnetic wave interaction, sensing application throughout electromagnetic spectrum is possible. Recent advancement in fabrication techniques and improvement in metamaterial structures have led to the development of compact, label free and reversible sensors with high sensitivity. Originality/value: The paper provides useful information on the development of metamaterial sensors for material characterization. © 2018, Emerald Publishing Limited.

Department of Communication Engineering

School of Electronics Engineering

Department of Sensor and Biomedical Technology

Sensor Review

A review: metamaterial sensors for material characterization

Department of Energy and Power Electronics

School of Electrical Engineering

World University root node

VIT Unitversity

Journal of Optics

Current–voltage characteristics of new organic natural dye extracted from Terminalia chebula for dye-sensitized solar cell applications

The title material was grown by slow evaporation solution growth technique using methanol as solvent. Single crystal X-ray diffraction study revealed that the material belongs to triclinic crystal system with space group P1¯. Powder XRD measurements was explored to identify strain present in the grown crystal. The presence of functional groups was identified from FTIR spectral analysis. From the UV–vis-NIR spectral study, refractive index and extinction coefficient were determined. The theoretical band gap values found from density functional theory shows discrepancy with that of the experimental value. The close contact interactions are identified from Hirshfeld surface analysis. Moreover, solid-state parameters were evaluated for the grown crystal. The dielectric constant and dielectric loss of the crystal were measured as a function of frequency and temperature. The luminescent property of title crystal was investigated and the results are discussed. © 2019 The Physical Society of the Republic of China (Taiwan)

Physics

School of Advanced Sciences

Chennai Campus

Chinese Journal of Physics

Synthesis, structural, frontier molecular orbitals, Hirshfeld analysis and luminescence properties of an organic 2-amino-4, 6-dimethoxypyrimidine 4-methylbenzenesulfonic acid monohydrate single crystal

Organic crystal of 2-aminopyridinium diphenylacetate diphenylaetic acid with dimensions 22 × 13 × 11 mm3 was grown by slow cooling technique. The structural confirmation has been done using single crystal X-ray diffraction study. The title compound crystallizes in the monoclinic crystal system with noncentrosymmetric space group P21. The C-H-O, N-H-O type of packing for the title compound has been reported. Optical transmittance shows a wide transparency in the visible region with lower cutoff wavelength at 349 nm. The four independent tensor coefficients of dielectric permittivity were found to be ε11 = 12.16, ε22 = 10.68, ε33 = 11.90 and ε13 = −4.24 from the dielectric measurements. The thermal stability of the 2APD compound was found to be 128˚C assessed by TG-DTA analyses. The particle size SHG of the 2APD reveals that it is a phase-matchable NLO crystal. © 2018

Computer Science

School of Computer Science and Engineering

Journal of Crystal Growth

Crystal engineering, structural and optical properties of 2-aminopyridinium diphenylacetate diphenylacetic acid crystal

A new organic nonlinear optical material, imidazolium diphenylacetate diphenylacetic acid, with excellent structural characterization and nonlinear optical activity has been reported.

New Journal of Chemistry

Crystal structure, molecular packing, FMO, NBO, nonlinear optical and optical limiting properties of an organic imidazolium diphenylacetate diphenylacetic acid single crystal

This paper presents the design and parametric analysis of various MNG structures such as SRR, CLL, SR and Omega particle. Depending on the structure and its dimensions, negativity and S-Parameter characteristics of each MNG structure changes. These structures exhibits stop band characteristics depending on negative permeability and hence find applications in microwave circuit. The structures are realized on Fr4 substrate of relative permittivity 4.4 and thickness 1.6mm. The substrate dimension is (4.2×4.2) mm2. These structures are individually studied under free space excitation using microwave simulation software Ansoft HFSS. © 2017 IEEE.

2017 International Conference on Computer Communication and Informatics (ICCCI)

Simulation study of MNG based metamaterial structures

This paper presents the design and parametric analysis of various ENG structures such as CSRR, C-CLL, C-SR, C-Omega and ELC. Depending on the structure and its dimensions, negativity and S-Parameter characteristics of each ENG structure changes. These structures exhibits either pass band or stop band characteristics depending on negative permittivity and hence find applications in microwave circuits. The structures are realized on Arlon AD250A substrate of relative permittivity 2.5 and thickness 0.49mm. The substrate dimension is (4.5×4.5) mm2. These structures are individually studied under free space excitation using microwave simulation software Ansoft HFSS. © 2016 IEEE.

2016 International Conference on Control, Instrumentation, Communication and Computational Technologies (ICCICCT)

Simulation study of ENG based metamaterial structures

Department of Physics

Journal of Thermal Analysis and Calorimetry

Self-assembled supramolecular synthons of 2,6 diaminopyridinium tosylate

A new organic nonlinear optical material isonicotinamidium picrate, with excellent nonlinear optical activity and thermal stability has been reported.

RSC Advances

A new organic NLO material isonicotinamidium picrate (ISPA): crystal structure, structural modeling and its physico-chemical properties