Sound & related vibrations; Physics 24 Vibration 18 Vibrational spectra 17 Engineering 14 Vibrations 10 Dr.G.Aruldhas 9 Physics 7 Dr.V.Unnikrishnan Nayar 6 Raman spectroscopy 6 Spectrum analysis 6 Waves 6 Molecular spectroscopy 5 Infrared spectroscopy 4 Vibrational spectroscopy 4 Catalysis 3 Materials science 3 Mechanical vibration 3 Mechanical vibrations 3 Spectra 3 Symmetry (Physics) 3 Thermodynamics 3 Vibrations-Engineering 3 Acoustics 2 Biochemistry 2 Chemistry 2 Chemistry, Inorganic 2 Crystallography 2 Crystals 2 Dissertations, Academic (Ph.D) 2 Dr.V.S.Jayakumar 2