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32181
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32182
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32183
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32184
Effects of organic cations on optical properties and structural stability in two-dimensional hybrid perovskites
Published 2021“…In this thesis, we investigate how the properties of 2D perovskites are dependent on the nature of the organic cations by utilizing optical and vibrational spectroscopy in a wide temperature and pressure range. …”
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Thesis-Doctor of Philosophy -
32185
Investigations of magnetic structures in one dimensional geometry for spintronics applications
Published 2022“…We have fabricated a one-dimensional device with wrapped pick-up coils, which was introduced under external stress mimicking the ambient vibrations. The harvested power from the fabricated devices was in the range of µW, which can be used as a power source for spintronics IoT sensors. …”
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Thesis-Doctor of Philosophy -
32186
Cognitive beamforming for secondary spectrum access
Published 2015“…By exploiting the impact of the eigenvalues on the interference outage probability and establishing the relationship between the vibrations of secondary covariance matrix and its eigenvalues, we design an algorithm for this beamforming problem. …”
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Thesis -
32187
Surface acoustic wave (SAW) design and applications in microfluidics
Published 2017“…SAW are nanometer amplitude vibrations that are generated on a piezoelectric substrate. …”
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Thesis -
32188
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32189
The manufacture of tuned percussion instruments in Indonesia and Africa: a selective study
Published 1995“…Experimental work examines modes of vibrations of bars of uniform thickness but of different shapes, the effect of undercutting bars and the method for tuning second and third partials. …”
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Thesis -
32190
Some applications of nuclear orientation
Published 1980“…Mixing ratio (δ) measurements for gamma-ray transitions between the (K<sup>π</sup> = 2<sup>+</sup>) γ-vibrational and (K<sup>π</sup> = 0<sup>+</sup>) ground state rotational bands of the daughter nucleus <sup>166</sup>Er showed that Ml transition probabilities are predominantly via ΔK = 1 band mixing which is in good agreement with systematics for deformed nuclei in this mass region.…”
Thesis -
32191
Phase/amplitude estimation for tuning and monitoring
Published 2008“…Schemes are devised for the tracking and control of the second mode of measurementtube oscillation alongside the so-called 'driven mode', at which the tubes are usually vibrated, leading to useful information being made available for measurement correction purposes.…”
Thesis -
32192
Bond behaviour of deformed steel rebars in steel fibre high- strength self-compacting concrete
Published 2022“…Phase 1 involves the design of concrete mixes and the testing of fresh and mechanical properties of the normal vibrates concrete (NVC), HSSCC and SFHSSCC. The steel fibres used in SFHSSCC , Were the hooked-end type with 35 mm length and an aspect ratio of 63.6. …”
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Thesis -
32193
Experimental studies on self-compacting concrete mixed with palm oil fuel ash and fly ash
Published 2016“…Compared to normally vibrated concrete (NVC), SCC enhances productivity, working conditions and reduces the number of labourers due to the elimination of compaction. …”
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Thesis -
32194
Structural, Magnetic and Electrical Properties and Colossal Magnetoresistive Effect Of La0.67Sr0.33mno3 Perovskites With Dy Substitution At La Site
Published 2007“…The second part involves the characterization of the samples using X-ray Diffractometer (XRD), Vibrating Sample Magnetometer (VSM), four point probe electrical resistivity and magnetoresistance measurement system, and Atomic Force Microscope (AFM). …”
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Thesis -
32195
Magnetic,structural and electrical properties of aluminium-substituted Yttrium iron garnet (Y₃Fe₅- AlᵪO₁₂ with X=0, .., 3.0) prepared via auto-combustion sol-gel method
Published 2016“…Magnetic properties of the samples were studied using vibrating sample magnetometer (VSM). Saturation magnetization, Ms was observed to decrease from 20.721 emu/g to 0.8112 emu/g as x increases from 0 to 3.0, while remnance magnetization, Mr decreased from 2.23 emu/g at x = 0, to 0 emu/g at x = 1.8 and above. …”
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Thesis -
32196
Optical properties of zinc oxide thin films fabricated via radio frequency magnetron sputtering for optical hydrogen gas sensor application
Published 2017“…The FTIR analyses showed that ZnO absorption bands in the fingerprint region between 500-450 cm-1 had arisen from inter-atomic vibrations due to stretching of Zn-O bond. Hence, the optimized ZnO thin films were tested for H2 optical sensing application. …”
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Thesis -
32197
Synthesis of hypercrosslinked poly(acrylonitrile-co-ethylene glycol dimethacrylate-co-vinylbenzyl chloride) as adsorbent for pharmaceuticals
Published 2020“…The absorption band at 1251 cm-1 that was assigned to the C-Cl vibrations was less intense in all hypercrosslinked (HXL) poly(AN-co-EGDMA-co-VBC) polymers, confirming that the hypercrosslinking reaction was successful. …”
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Thesis -
32198
Enhancement of knee beam-column joint performance using hybrid fiber-reinforced concrete
Published 2020“…The knee beam-column joint is the weakest beam-column configuration in a Reinforced Concrete (RC) structure, particularly when subjected to earthquake vibrations. Current structural design codes dictate the use of high amounts of steel reinforcements in the frame joint to manage the large strain demand in seismic-prone regions. …”
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Thesis -
32199
Physical and spectroscopic characterisation of samarium doped magnesium tellurite glass embedded silver nanoparticles
Published 2015“…The fourier transform infrared (FTIR) and Raman spectra reveal modification in network structures which is evident from the shifted vibrational wave-number of TeO4 and TeO3 structural units located around 600 cm-1 and 700 cm-1, respectively. …”
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Thesis -
32200
Spectroscopic studies of samarium-doped sodium tellurite glass containing silver nanoparticles
Published 2015“…It is found that the introduction of Ag nanoparticles in the glass network has increased the network rigidity and therefore increases the glass thermal stability. The vibrational spectrum of the glass has been studied using Fourier Transform Infrared (FTIR) spectroscopy. …”
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Thesis