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32121
Phase transitions in spin-phonon systems
Published 1973“…One of the lattice vibrational modes is written in a pseudc-spin formalism and four spin interactions have been included in the model. …”
Thesis -
32122
Some problems in algebraic topology
Published 1967“…Ganea gave another definition of category and weak category (which we shall write as G-cat and G-wcat) in terms of vibrations and cofibrations and hence this dualizes easily in the sense of Eckmann-Hilton. …”
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32123
Equilibrium and stereoscopic isotope effects
Published 1973“…</p> <p>All the observed effects are interpreted in terms of the reduction of zero-point vibrational energy accompanying substitution of deuterium for hydrogen. …”
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32124
Synthesis, morphology, characterisation and evaluation of carbon nanotubes-substituted YIG-PVA composites as electromagnetic wave absorbing materials
Published 2011“…The phase formation, surface morphology and magnetic properties of as-prepared YIG nanoparticles were studied using X-Ray diffraction (XRD), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM), respectively. …”
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Thesis -
32125
Structural, magnetic and dielectric properties of FeշO3-TeOշ glass with starting materials of different particle size
Published 2012“…Magnetic measurement has been performed at room temperature using vibrating sample magnetometer (VSM). The dielectric properties of the samples were also measured using Novocontrol Novotherm High Dielectric Resolution Analyser. …”
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Thesis -
32126
Preparation and characterization of glass polyalkenoate cement with modified montmorillonite
Published 2014“…Cross linking reaction caused the bending vibrations of C-H2 and CH-C=O at 1440 cm-1 and 1415 cm-1, respectively were slightly shifted to higher wave number. …”
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Thesis -
32127
Physical and dielectric properties of boro-tellurite glass doped with cobalt and iron oxides
Published 2012“…The magnetic behaviour in the glass system was studied using VSM (vibrating sample magnetometer) at room temperature with magnetic field range ±15kOe. …”
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Thesis -
32128
Forward scattering radar for real-time detection of human activities and fall classification
Published 2019“…The first objective is a mathematical characterization of the translational, vibrational, and rotational motions that describe the movements of human body parts. …”
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Thesis -
32129
Bond behaviour of deformed steel rebars in steel fibre high-strength self-compacting concrete
Published 2022“…Phase 1 involved the design of concrete mixes and the testing of fresh and mechanical properties of the normal vibrated 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 -
32130
Immobilization of lipase enzyme from candida antarctica on superparamagnetic maghemite nanoparticles and its behaviour in aqueous and organic catalyses
Published 2021“…Based on the characteristic studies done on synthesized nanomagnets by using X-Ray diffraction crystallography, field emission scanning electrom microscopy, attenuated total reflectance – fourier transform infrared spectroscopy and vibrating sample magnetometer, the nanoparticles possessed the same structure as standard maghemite with good magnetic properties. …”
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Thesis -
32131
Magnetically recoverable biosynthesised gold nanoparticles as catalysts for oxidation of benzyl alcohol and reduction of 4-nitrophenol
Published 2019“…The structural, surface and magnetic properties of the support material (Fe3O4-SiO2-Met) was investigated by FTIR, XRD, HRTEM/EDX, elemental carbon-hydrogen-nitrogen (CHN), thermogravimetry (TGA) and vibrating sample magnetometry (VSM) analyses. The XRD, HRTEM/EDX, X-ray photoelectron spectroscopy (XPS) and atomic absorption spectroscopy (AAS) analytical data revealed that AuNPs with smaller average sizes (6.1 ± 2.2 nm and 16.2 ± 8.3 nm) were well-dispersed on the Fe3O4- SiO2-Met support. …”
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Thesis -
32132
A novel route to the synthesis of a-Fe2O3@C@SiO2/TiO2 nanocomposite from the metal-organic framework as a photocatalyst for water treatment
Published 2022“…The as-synthesized nanocomposite particles were characterized using X-ray powder diffraction (XRD), thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FT-IR), vibrating sample magnetometer (VSM), X-ray energy dispersive spectroscopy (EDX), and scanning electron microscopy (SEM) techniques. …”
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32133
Phonon Characteristics of Gas-Source Molecular Beam Epitaxy-Grown InAs<sub>1−x</sub>N<sub>x</sub>/InP (001) with Identification of Si, Mg and C Impurities in InAs and InN
Published 2023-10-01“…The results in the frequency range of 180–500 cm<sup>−1</sup> revealed accurate values of the characteristic In-As-like and In-N-like vibrational modes. For InAs<sub>1−x</sub>N<sub>x</sub> alloys, a classical “Drude–Lorentz” model was constructed to obtain the dielectric functions <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mover accent="true"><mrow><mi mathvariant="sans-serif">ε</mi></mrow><mo>~</mo></mover><mfenced separators="|"><mrow><mi mathvariant="sans-serif">ω</mi></mrow></mfenced></mrow></semantics></math></inline-formula> in the far IR regions by incorporating InAs-like and InN-like transverse optical <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="sans-serif">ω</mi></mrow><mrow><mi mathvariant="normal">T</mi><mi mathvariant="normal">O</mi></mrow></msub></mrow></semantics></math></inline-formula> modes. …”
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32134
Study on the Preparation and Optical Properties of Graphene Oxide@Fe<sub>3</sub>O<sub>4</sub> Two-Dimensional Magnetically Oriented Nanocomposites
Published 2023-01-01“…The samples were characterized and tested by X-ray diffraction, a transmission electron microscope, Fourier-transform infrared spectroscopy, a vibrating-specimen magnetometer, a polarized optical microscope, an optical microscope, etc. …”
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32135
Selenium Nanoparticles Can Influence the Immune Response Due to Interactions with Antibodies and Modulation of the Physiological State of Granulocytes
Published 2022-12-01“…We showed that antibodies bind to the surface of selenium nanoparticles and are present in aqueous solutions in a bound form from DLS methods, ultraviolet–visible spectroscopy, vibrational–rotational spectrometry, fluorescence spectrometry, and refractometry. …”
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32136
Synthesis, Single Crystal Structural Investigation, Hirshfeld Surface Analysis, Thermoanalysis and Spectroscopic Study of Two New Cu(II) and Co(II) Transition-Metal Complexes
Published 2021-08-01“…The [CoCl<sub>4</sub>]<sup>2−</sup> tetrahedra are arranged parallel to the plane (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mover accent="true"><mn>1</mn><mo>¯</mo></mover></semantics></math></inline-formula>10) at x = (2n + 1)/2 and the organic cations are grafted between them by establishing with them hydrogen bonds of CH…Cl and NH…Cl types. The vibrational absorption bands were identified by infrared and Raman spectroscopy. …”
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32137
Electrospun PVDF/Barium hexaferrite fiber composites for enhanced electromagnetic shielding in the X-band range
Published 2023-10-01“…X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), vibrating sample magnetometer (VSM), and EM measurements utilizing a vector network analyzer (VNA) are all used to describe the prepared samples. …”
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32138
Synthesis and Characterization of Novel Nanoparticles of Lithium Aluminum Iodate LiAl(IO<sub>3</sub>)<sub>4</sub>, and DFT Calculations of the Crystal Structure and Physical Proper...
Published 2021-12-01“…Morphological and compositional analyses were carried out by using scanning electron microscopy (SEM) and energy-dispersive X-ray measurements (EDX). The optical and vibrational properties of LiAl(IO<sub>3</sub>)<sub>4</sub> have been studied by UV-Vis and IR spectroscopy. …”
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32139
Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective
Published 2022-03-01“…TGA shows two stages of weight loss variation. The vibrating sample magnetometer (VSM) measurement shows that magnetic parameters, such as initial permeability (<i>μ<sub>i</sub></i>) and saturation magnetization (<i>M<sub>s</sub></i>), decay with rising Mg content. …”
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32140
Enhanced Energy Storage Performance and Efficiency in Bi<sub>0.5</sub>(Na<sub>0.8</sub>K<sub>0.2</sub>)<sub>0.5</sub>TiO<sub>3</sub>-Bi<sub>0.2</sub>Sr<sub>0.7</sub>TiO<sub>3</sub>...
Published 2023-07-01“…A rhombohedral-tetragonal phase, the formation of highly dynamic PNRs, and a dense microstructure are confirmed from XRD, Raman vibrational spectra, and microscopic investigations. …”
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