An Analytical Study of Liquidity and Assets Management Ratio of Selected Automobile Company in India

The primary objective of this research is to assess the liquidity and asset management positions of selected vehicle manufacturers and to give recommendations for improving their liquidity and asset management positions. The current research spans five years, from 2015-2016 to 2019-2020. Three organizations were chosen for this research, and five ratios were calculated: the current ratio, the liquidity ratio, the working capital turnover ratio, the total asset turnover ratio, and the fixed asset turnover ratio. ANOVA was employed to test the hypothesis. The research's principal results reveal that there is no statistically significant variation in the different asset management and liquidity ratios of chosen vehicle businesses during the study period. According to data interpretation, the comparison of all the selected three automobile industry's ratios indicates that Maruti Suzuki Ltd. Is in a better position than the other selected automobile companies, as its average of the selected ratios is 12.85, which is higher than the other selected automobile companies. Thus, Maruti Suzuki Ltd. Outperforms the other automotive manufacturers.

Physical, Optical and Luminescene Properties of Lanthanide Ln3+ Doped Silicate Glasses

Li2O-BaO-Gd2O3-SiO2 and Li2O-BaO-GdF3-SiO2 glasses, doped with different rare earth ions (Dy3+ and Eu3+) have been synthesized by conventional melt quenching technique for the applications of solid state lightning devices (color LEDs), lasers and scintillation detectors. The developed glass samples have been investigated and characterized through their physical (density, molar volume, refractive index and optical energy gap, etc.,), structural (X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR)) and optical (absorption, excitation, emission and decay) properties. The various spectroscopic parameters such as, Judd-Oflet (JO) intensity parameters (Ωλ,λ = 2,4and 6), radiative lifetime (τR), transition probability (AR), branching ratio (βR), quantum efficiency (η), non-radiative relaxation rates (WNR), effective bandwidths (Δλeff), stimulated emission cross-section σ(λp) and CIE color coordinates for the present thesis have been calculated and analyzed by using various theoretical models anddifferent mathematical relations, which shows the same trend for all developed glass samples. The structural properties of the developed glasses have been investigated through XRD and FTIR spectra. The optical band and JO intensity parameters have been evaluated from optical absorption spectra. The optical and luminescence properties of the prepared glasses have been study with the help of absorption, transmittance, and photoluminescence and X- ray luminescence spectrum. Lifetime of all the developed glasses have been found to decrease with increase in concentration of rare earth ions. The energy transfer mechanism has been explained by using Inokuti–Hirayama (IH) model, which shows better fitting for S=6, which is dipoledipole interaction is dominant in the present glass samples. From the color coordinates values of LBGS-Dy glasses emits white light while LBGS-Eu and LBGFSEu emit red light. From the obtained results, LBGS-Dy, LBGS-Eu, and LBGFSEu glasses could be the potential hosts for the light emitting diodes and laser applications.