Materials Literature
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The possibility of using polymers based on epoxyphenolic binders to obtain fiberglass with an intense level of carbonization has been investigated. The correlation between the pyrolytic transformations intensity and the fire hazard indicators of polymers is shown. It is established that the conditions for the intensiv…
This paper shows how elastic and viscous microscopic interactions influence rheological responses in soft materials. Both the standard linear solid model of viscoelasticity and the Hertz model of mechanical contact can be recovered by a coarse-grained model.
Tuning magnetic damping constant in dedicated spintronic devices has important scientific and technological implications. Here we report on anisotropic damping in various compositional amorphous CoFeB films grown on GaAs(001) substrates. Measured by a vector network analyzer-ferromagnetic resonance (VNA-FMR) equipment…
We discuss the significance of recent advances in magnetostrictive materials, in particular emphasising the advantages to be gained from their integration in microelectromechanical systems. By way of illustration a demonstrator pressure sensor is described.
An in-depth study of the Fermi surface and electronic structure of the ternary nanolamellar carbide ${\mathrm{Ti}}_{3}\mathrm{Si}{\mathrm{C}}_{2}$ is reported. The outputs of angle-resolved photoemission spectroscopy (ARPES) measured on single crystals and density functional theory calculations are systematically comp…
In analytical form, formulas are obtained for the amplitude of forced harmonic longitudinal vibrations of reinforced concrete and fiber-reinforced concrete columns with fixed edges. In order to verify the proposed approach, columns were simulated in the ANSYS program and calculated by the finite element method. Analys…
Viscoelastic materials, such as natural fibre-reinforced polymer composites, are strain rate sensitive. In the present investigation, the low strain rate sensitivity (0.00028 s−1, 0.00085 s−1 and 0.0017 s−1) of different sized bagasse particle-reinforced (212 µm and 300 µm) epoxy composites was examined using the Weib…
This chapter describes environmentally and ecologically friendly uses of chitin; chitosan, and their derivatives. Chitin and chitosan are fertilized into farming soils, and the soil microbial flora are improved. Chitinase and its isoforms are distributed widely in tissues, organs, and body fluids of plants, animals, m…
Bu çalışmanın amacı, kiraz çekirdeklerinin ısıl bozulma davranışını ve kinetiğini incelemektir. Bu nedenle, iki farklı partikül boyutundaki (75-150 ve 150-250 µm) kiraz çekirdekleri beş farklı ısıtma hızında (5, 10, 20, 30 ve 40°C/dk) azot gazı varlığında oda sıcaklığından 800°C'ye kadar izotermal olmayan termogravime…
Dronedarone, a drug similar in chemical properties to amiodarone, was designed to have similar pharmacodynamic properties as amiodarone with fewer side effects. Although there have been cases of chronic liver enzyme elevation with dronedarone, only a few cases have been reported in literature where it has led to rapid…
Because of its widely known antifouling properties, a variety of lithographic approaches has been used to pattern surfaces with poly(ethylene glycol) (PEG) to control surface interactions with biomolecules and cells over micro- and nanolength scales. Often, however, particular applications need additional functions wi…
Methylene Blue (MB) was adsorbed from aqueous solution using Baobab (Adansonia digitata L.) fruit pod and its goethite modified form. Adsorbents were characterized using Fourier Transform-Infra Red (FTIR) spectroscopy and Scanning Electron Microscopy (SEM). Batch experiments were conducted at room temperature (26.8 °C…
The effects of Cr addition and cold deformation in increasing strength and altering the austempered structure of a FeNi steel is discussed. Cr content in the steel was varied from 2 to 3 wt% whilst cold deformation was undertaken on the material at either, 10% or 50%. The cold deformed steel was then subjected to aust…
Air pollution is a public health issue and the toxicity of ambient particulate matter (PM) is well-recognized. Although it does not mostly contribute to the total mass of PM, increasing evidence indicates that the ultrafine fraction has generally a greater toxicity than the others do. A better knowledge of the underly…
Experimental simulation of rhodochrosite-involving decarbonation reactions resulting in the formation of spessartine and CO2-fluid was performed in a wide range of pressures (P) and temperatures (T) corresponding to a hot subduction P-T path. Experiments were carried out using a multi-anvil high-pressure apparatus of…
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Metal–organic or all-inorganic Sb(V) bromide complexes are a novel class of semiconductor materials with potential use in optoelectronic devices. The implementation of these materials for optoelectronics is currently prohibited by their poor thermal stability and crippling solvent compatibility issues. Here, we addres…
Migratory insertion polymerization (MIP) of P FpR [ P Fp = (PPh 2 (CH 2 ) 3 Cp)Fe(CO) 2, R = (CH 2 ) 4 CH═CH 2 or (CH 2 ) 5 CH 3 ] ( 1 ) involved competitive MIP ring-closing polymerization and monomer cyclization (MC), producing P( P FpR) macrocycles ( 2 ) and P FpR rings ( 3 ), respectively. MC, generating 3, occurr…
Near-ultraviolet light-emitting diodes (NUV-LEDs) have been a rising UV light source for identification, resin curing, ink-printing, and illumination. In pursuit of more extensive application in different fields, their optical performances are obliged to be better. In this paper, we investigated the effect of a quartz…
The methods of obtaining the base layers of cadmium telluride to create effective solar cells are considered. At present, two groups of methods are distinguished for the preparation of base layers of cadmium telluride for high-efficiency PECs: low-temperature and high-temperature. If a polyimide film with a temperatur…