Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Petroleum and its subproducts are considered a treat for the environmental quality because of the many environmental accidents that may occur during exploitation, transport and storage. A common remediation technique used in the contaminated areas is based on the use of surfactants, mainly the chemical ones, because t…
In der vorliegenden Dissertation wurden auf alternativen Nanopartikelmorphologien basierende Hybridsysteme hinsichtlich ihrer optische Eigenschaften untersucht, um die bekannten Limitierungen und Unzulänglichkeiten der etablierten Nanopartikelsysteme und -formen, wie stäbchenförmige oder sphärische Nanopartikel, weitg…
The results of numerical simulation of the effect of absorption of microwave thermal energy in the scattering of plane electromagnetic waves on structures in the form of a periodic lattice of microstrip elements magnetodielectrics having with magnetic losses, the mathematical model of the microstrip reflector with res…
Physical and mathematical model of LEDs and LED lamps are considered. The mathematical basis is a set of differential balance equations for the thermal energy of the crystal substrate LEDs and the measuring chamber. Simulation allows us to study the thermal modes of the crystal and the substrate, to assess the effect…
We have successfully prepared mesoporous TiO2 photocatalysts with highly thermal stability and tunable pore sizes through an ionic-liquid templated sol-gel method. The mesoporous structure was directed by self assembly of a hydrophilic ionic liquid, butbleyl-3-methylimidazolium chloride (BMIMCl), in a benzyl alcohol (…
Here are presented the technological ways and problem questions of improvement in plasma-spraying and coat-strengthening processes, for example: electric parameter modulation of indirect and direct plasmatron electric arcs. New effective technologies are constructed which can be applied to coating and strengthening on…
Author Institution: Department of Physics and Astronomy, Texas Christian University, Fort Worth, TX 76129
Positron annihilation lifetime (PAL), and electrical conductivity studies were carried out on a series of polycrystalline spinel ferrite with composition Li0.5‐0.5xCuxFe2.5‐0.5xO4 where (x = 0.2, 0.4, 0.6, 0.8, 1). The radii of the tetrahedral A‐sites (rA) and the octahedral B‐sites (rB) were studied as a function of…
Import 04/07/2011
The Cr doped ZnS nanoparticles were successfully synthesized by chemical co precipitation method using mercapto ethanol as the template. As prepared nanoparticles were characterized by X‐Ray diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission electron Microscopy (TEM) and Optical absorption studies. We…
The specific heat of crystalline materials varies as T3 (Debye law) at low temperatures. Specific heat of glasses, however, does not obey Debye law and this is connected with the existence of tunneling states in glasses. This paper reports results of specific heat studies for mixed salts (NH4)xRb1−xBr of ammonium and…
Polycrystalline ferrite samples with chemical formula NiNdxFe2−xO4 (x = 0, 0.01, 0.02 and 0.03) were prepared by oxalate co‐precipitation method. The single phase cubic spinel formation of ferrite was confirmed by X‐ ray diffraction technique. The dielectric constant and dielectric loss of all the samples were determi…
We present theoretical and numerical studies of near- and far-field scattering properties of planar and cylindrical uniaxially anisotropic metamaterials having hyperbolic dispersion relations. The imaging properties of single-layer and bilayer lenses consisting, respectively, of one and two anisotropic layers are stud…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation S. Shanmukharao Samatham, D. Venkateshwarlu, Swati Pandya, Mohan Gangrade, L. S. Sharath Chandra,…
Amyotrophic lateral sclerosis (ALS) is a disease in which the motor neurons die in a progressive manner, leading to paralysis and muscle wasting. ALS is always fatal, usually through respiratory failure when the disease reaches muscles needed for breathing. Most cases are sporadic, but approximately 5–10% are familial…
We demonstrate two new families of metamaterial: indented (intaglio) and raised (bas-relief) sub-wavelength periodic patterns - the manufacturing of which on a metal surface provides a mechanism for controlling the colour of the metal.
The present study is concerned with the correlation between the magnetic properties of the Nd60Fe30Al10 sample and its size, in particular its dimension measured in the direction of heat removal. We compared samples produced using the three methods: melt‐spinning, die casting under pressure, and suction casting. The s…
The complex perovskite oxide Ca(Co1/3Nb2/3)O3 [CCoN] is synthesized by standard solid state reaction technique. Its structural and dielectric properties are reported here. The XRD pattern reveals that CCoN has monoclinic symmetry with space group P21/c. The dielectric study carried out from room temperature to 350 deg…
In article the numerically-analytical decision of a flat problem of the theory of elasticity with use of a method of the suspended discrepancies is constructed in the form of a method of the boundary solving [1]. Unlike known approaches, the solving is being made in the form of decomposition on the polynoms a priori s…
Magnetization measurements on RBaCo2−xRuxO5+δ, R = Gd, Nd with x = 0, 0.05 and 0.1 samples have been carried out. In both the series of samples, Ru substitution increases cell parameters and suppresses ferromagnetism (FM) with associated decrease in paramagnetic to FM transition temperatures (TC) to lower values.