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。
Properties of nanoparticles are significantly different from their bulk counterparts, including their biological and toxic activity. The properties of silver nanoparticles governing their toxicological effects are summarized. These basic characteristics can be used as descriptors for modelling the toxic properties of…
Equal channel angular pressing (ECAP) in magnesium alloys due to severe plastic shear deformations provides both grain refinement and the slope of the initial basal texture at 40°–50° to the pressing direction. These changes in microstructure and texture contribute to the improvement of low-temperature plasticity of t…
The epoxidation of syndiotactic 1,2-polybutadiene (84 and 16% 1,2 and 1,4 units, respectively) with carboxylic peracids prepared in situ and m -chloroperbenzoic acid was studied. In the course of epoxidation in the presence of carboxylic peracids, oxirane groups are formed only through epoxidation of double bonds in t…
While an Hourly Price Forward Curve (HPFC) plays a defining role in the profitability of all power trading, there is a lack of consensus on the a priori requirements of a suitable HPFC, as opposed to the a posteriori quality measure that executed trades be profitable. We attempt to address this issue by reviewing the…
Chalcogenide glasses are interesting materials on account of their infrared application. In present paper, thin films of quaternary chalcogenide glasses, Se80.5Bi1.5Te18 − x Sb x , where x = 0, 2, 4, has been investigated for their optical properties using transmission spectra in the spectral range of 500–2500 nm. The…
In this paper, a study regarding the influence of the filler content on the electrical conductivity of low density polyethylene (LDPE)-Neodymium (Nd) composites is presented. Flat samples having the dimensions 100 · 100 · 0.5 mm3were manufactured from low density polyethylene (LDPE) as polymeric matrix and Nd spherica…
This paper demonstrates fabrication and characterization of reduced graphene oxide (RGO) based Schottky diodes on a flexible substrate. Current-voltage measurements on the fabricated devices show strong non-linearity. Diodes are tested for high frequency applications such as detection, frequency multiplication and mix…
Known methods for determining the resolution of a scanning electron microscope are discussed. It is shown that none of them can unambiguously characterize the scanning electron microscope.
In this paper, a new method for the consistent analysis of periodic metasurfaces with bianisotropic particles is introduced. The proposed technique combines a microscopic modeling approach at the level of the constituting meta-atoms with a macroscopic equivalent surface characterization, to unambiguously determine a s…
The structure, electronic and magnetic properties of full-Heusler alloy Co 2 TiGa are investigated by means of the full potential linearized augmented plane-wave method. Our results show that the ground state of Co 2 TiGa is of the nearly half-metallic ferromagnetism with a magnetic moment of 1.00218 μ B per unit cell…
Formation of cerium-lanthanum-permanganate composite conversion coating on AZ61 magnesium has been studied. Morphology of the coated and uncoated alloy samples has been studied by scanning electron microscopy before and after immersion in corrosive media. Energy dispersive X-ray shows that the coatings are composed of…
Semiconductor quantum dots (QDs) possess superior optical properties and show great potential for use in biological and biomedical applications. However, there are increasing concerns regarding the assessment of their cytotoxicity, and their biocompatibility currently limits their use in further clinical applications.…
Presents a collection of slides covering the following topics: core loss; machines; winding loss; eddy-current loss; wire testing; foil; force current sharing; geometry; hysteresis loss; anomalous loss; Steinmetz equation; iGSE; improved generalized SE and relaxation effect.
Abstract Two rigid macrocyclic CTV‐based porous organic polymers, Click‐POP‐1 and Click‐POP‐2, have been synthesized by Click reaction of a cyclotriveratrylene analogue with alkyne groups and aromatic azides in one pot. FTIR, solid 13 C NMR and elemental analysis confirmed the formation of the polymers. Both of them p…
Wood Plastic Composites (WPCs) are a new generation of green composites that contain thermoplastics and wood/natural fibres in various forms, which can come mostly from recycled materials. Using co-extrusion techniques, WPCs show good moisture resistance, economical cost, and recycling performance. However, as structu…
The type and stability of emulsions, as well as the stability and thickness of free aqueous emulsion films stabilized with Aerosil-hexylamine mixtures, have been studied. The rheological characteristics (dynamic yield stress, elasticity modulae, and viscosity) have been measured for suspensions from which emulsions an…
Graphene, the flat, two-dimensional (2D) monolayer of carbon atoms theoretically can be considered as the basic building block for all other graphitic materials with different dimensionalities. It can be wrapped up into 0D fullerene, rolled into 1D nanotube or stacked into 3D graphite. Integrating graphene components…
Thin films of GeAsS glass are prepared by e-beam evaporation technique. Photoinduced birefringence (PIB) is studied as function of the As content with concentrations ranging from 10% to 40%. Raman spectroscopy is used as additional tool to explain the corresponding changes undergone by the material system. The breakdo…
The paper presents an automatic procedure for quantitative evaluation of energizing inrush current of a specific range of single phase power transformers: 1.2-25 kVA. Starting from transformer main rated data and core magnetic H-B characterization, the first peak value of inrush current is accurately estimated. Additi…
A homogenization technique of a laminated core taking account of the eddy currents in the steel plates by combining a three-dimensional (3-D) solid core model with a one-dimensional (1-D) steel plate model has already been proposed. In this paper, to apply the proposed technique to a motor core, in which flux rotates,…