Exploring ultrafast terahertz dynamics for efficient transmission and emission applications by Ali Abdelaziem Abdelgaied Abdelrahman

“…THz spectroscopy is gaining popularity in various fields, including material science, biology, chemistry, and physics, due to its non-invasive nature that enables the examination of the intrinsic properties of materials, including their structural, vibrational, and electronic states. The non-ionizing nature of THz radiation also makes it particularly useful for studying sensitive biological samples and delicate materials. …”
Get full text

Example-based dynamic deformation by Zhang, Wenjing

“…Although less physically plausible than our previous example-based solid, this new potential allows the dynamic equations to be decoupled into single vibrations through modal analysis. Modal warping can be directly adopted to deal with large deformation. …”
Get full text

Programmable nanomaterials for health-related flexible sensing electronics by Wang, Xuewen

“…This CA-based flexible devices can record low-frequency vibrations (<6 Hz) and make it excellent to monitor the rest tremor of human body, which is an initial symptom of Parkinson's disease. …”
Get full text

Synthesis, characterization and performance evaluation of nano-energetic composite by Tan, Meng Lu

“…Gasless thermite reactions could offer potential in applications requiring little flow disturbances and vibrations. A novel self-assembly technique to promote better intermixing of the fuel-oxidizer system through surface functionalization with complimentary functional groups as well as the addition of an energetic polymer binder to reduce the sensitivity were studied. …”
Get full text
Get full text

Численное моделирование трёхмерных дискретных бризеров в ГЦК решётке Ni = Numerical modeling of 3D discrete breathers in fcc Ni... by Лобзенко И. П. Lobzenko I. P., Лобзенко П. В. Lobzenko P. V., Баязитов А. М. Bayazitov A. M., Четвериков А. П. Chetverikov A. P., Махмутова Р. И. Machmutova R. I., Кистанов А. А. Kistanov Andrey A.

“…The initial conditions for the excitation of breathers are constructed by imposing a spherically symmetric function, exponentially decreasing with the distance from the center of the sphere, on the delocalized vibrational normal mode, the frequency of which lies above the phonon spectrum of the crystal. …”
Get full text
Get full text

Effect of natural ferrite oxide nanoparticles on structural and magneto optic properties of erbium doped tellurite glass by Anigrahawati, Puzi

Get full text

Quantum cascade laser spectroscopy: non-linear optics and population transfer by Billingham, H

“…</p> <p>In chapter 3, a cw-QCL operating at &amp;Tilde;10 μm is employed at chirp rates near to the adiabatic limit, in the range 0.1 – 1.1 MHz ns^-1. A ro-vibrational overtone transition of OCS is studied at two path lengths within an astigmatic Herriott cell, 238 and 47 m. …”

Tailoring of magnetic anisotropy and interfacial spin dynamics by Baker, A

“…</p> <p>This thesis presents an investigation into the magnetodynamics of ferromagnetic thin films and heterostructures grown by molecular beam epitaxy and studied using vector-network analyser ferromagnetic resonance (VNA-FMR), x-ray magnetic circular dichroism, vibrating sample magnetometry and x-ray detected ferromagnetic resonance (XFMR). …”

Statistical mechanics of fluids by Severin, E

“…The effective pairwise potential predicts the height of the monolayer above the surface and the vibrational frequency against the surface. The translational and rotational behaviour of a single methane molecule are examined.…”

Studies of reactions relevant to atmospheric photochemistry by Horner, M

“…On this basis it is believed that the reaction of vibrationally excited OH^* , produced by the reaction H + O₃, with ozone does not generate H atoms as products. …”

Mechanics of molecular collisions by Connor, J, Connor, J. N. L.

“…An important feature of the analysis is the use of a set of coordinates which pass smoothly from those suited to reactants to those suited to products. A vibrationally adiabatic approximation is used to reduce the scattering problem to the solution of one dimensional Schrandouml;dinger equations. …”

Preparation and characterization of amino-functionalized Fe3O4/poly(maleic anhydride-co-acrylic acid) magnetic nanocomposite for removal of Cu(ll) and Ni(ll) ions by Shahri, Mahnaz Mahdavi

“…Magnetic measurement by vibrational sample magnetometer (VSM) revealed the nanoparticles were superparamagnetic and the saturation magnetization was 83.6 and 46.6 emu g-1 for pure Fe3O4 and composite nanoparticles, respectively. …”
Get full text

Optical, physical and structural properties of zinc-borotellurite glass doped with samarium oxide and samarium oxide nanoparticles by Saleh Abuzlilia, Hajer Saad

“…The FTIR analysis consists of several bands which indicate the characteristic of Te-O and B-O vibrational groups. The optical absorption spectra of these glasses revealed that fundamental absorption edge shifts to longer wavelength as the content of Sm2O3 increases. …”
Get full text

Preparation, antibacterial properties and heavy metals sorption of nanocomposites based on rice straw, Fe₃O₄ and polycaprolactone by Khandanlou, Roshanak

“…The samples were studied using X-ray powder diffraction (PXRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FT-IR), and vibrating sample magnetometer (VSM). The TEM images showed the mean diameters of Fe₃O₄- NPs in solid support decreased gradually from 18.47 to 9.93 nm with the increase of NaOH volumes. …”
Get full text

Physical and mechanical properties of hydroxyapatite reinforced with 45S5 biocomposite by Alassan, Zarifah Nadakkavil

“…The FTIR results revealed the presence of SiO4, PO4 vibrations in SG, HASG and HATG samples. In addition, the FESEM analysis revealed that by increasing the sintering temperature, the size of closed pores of SG samples increased, while the Ca/P ratio decreased. …”
Get full text

Optical properties of zinc borotellurite glass systems doped with dysprosium oxide and dysprosium oxide nanoparticles by Mohd Nor, Ami Hazlin

“…The infrared spectra obtained from the FTIR spectroscopy for both series of the glasses revealed the existence of five obvious bands which were assigned to the BO3, BO4, TeO3 and TeO4 vibrational groups. The presence of the Dy2O3 NP in the zinc borotellurite glass network was proven by TEM image. …”
Get full text

Dielectric and optical properties of lead-borotellurite glass system by Mustafa, Iskandar Shahrim

“…Based on the Raman spectra results, the increase broad shoulders at 410 ern" indicate that new features to vibrations of one of the partially crystalline phase of Pb3Te06. …”
Get full text

Effect of cobalt oxide on optical and dielectric properties of willemite-based glass-ceramics using white rice husk ash as silica source by Abdul Wahab, Siti Aisyah

“…Fourier Transform Infrared (FTIR) spectroscopy showed eight significant vibrational bands of Zn2SiO4 at 750- 950 ℃ for both undoped and doped samples. …”
Get full text

Synthesis and applications of new modified magnetic sporopollenin and graphene oxide-based materials for removal of selected heavy metals from industrial wastewater by Mohammed Hassan, Abdulaziz

“…The newly synthesized materials were characterized using Fourier transform infrared spectroscopy, thermogravimetric analysis, field emission-scanning electron microscopy, energy dispersive X-Ray analysis and vibrating sample magnetometry. The effect of important adsorption parameters such as solution pH, temperature, contact time, adsorbent dose, initial concentration and co-existing ions were studied and optimized. …”
Get full text

Effect of natural ferrite oxide nanoparticles on structural and magneto optic properties of erbium doped tellurite glass by Puzi Anigrahawati, Puzi Anigrahawati

“…Thorough characterizations of these glasses were made using X-ray diffraction (XRD), differential thermal analyzer (DTA), ultraviolet-visible-near-infrared (UV-Vis-NIR), Fourier transform infrared (FTIR), Raman spectroscopy, photoluminescence (PL) spectroscopy, energy dispersive X-ray (EDX), high resolution transmission electron microscopy (HRTEM), vibrating sample magnetometer (VSM) and electron spin resonance (ESR) spectroscopy. …”
Get full text