Materials Literature
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In this study, a poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/n-Si hybrid solar cell is fabricated via spin coating and treatment with HNO 3 vapor. It is found that after the HNO 3 treatment, the hybrid solar cell shows much better performance with an open-circuit voltage ( V oc ), short-circui…
The samples of hydro- and aluminosilicates of different morphology-layered (based on compounds with the structure of montmorillonite), framework (zeolite Rho ), and nanotube (compounds with the structure of chrysotile)—have been fabricated under hydrothermal conditions. The sorption properties of the synthesized sampl…
This paper presents a new robust control scheme for the efficiency optimization of an ultracapacitor-based hybrid energy storage system. The purpose is to improve the performance of the battery supply with the addition of an ultracapacitor as an auxiliary energy storage device for electric vehicles applications. The c…
Moisture in power transformers are undesirable but yet unavoidable; hence necessitating its continuous study. The kraft paper of the oil filled transformer absorbs much of its moisture from the insulation oil in which it is immersed. The dielectric properties of the paper can be determined as a function of the wetting…
Abstract This study of periphytic algae and gastropods differentiation on macrophytes, stones, and dam substrates and the relationships between these communities in the vegetative season of 2001-2003 was conducted in the vicinity of a hydroelectric plant on the Pasłeka River. Damming the river caused decreased water d…
Abstract The main air pollutants in the sintering process of iron ore are polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans (PCDD/Fs) and harmful dust. Ore sintering on sinter strands is one of the first technology steps in the ironworks. It is a process in which iron ore is crushed, subjected to anneal…
The potential of the skin of anuran amphibians as a new source of bioactive peptides was investigated . For this purpose, the study collected data in the mid-eastern region of Argentina. Two anuran amphibian species were studied which belong to the Hylidae and Leptodactylidae families, Leptodatylus latrans (Ll) and Hy…
Thermal treatment of sewage sludge produces fly ash, also known as the air pollution control residue (APCR), which may be recycled as a component of artificial lightweight aggregates (ALWA). Properties of APCR are typical: high content of Ca, Mg, P2O5, as well as potential to induce alkaline reactions. These propertie…
Nickel oxide (NiO) nanocrystals epitaxially grown on (001) strontium titanate (SrTiO3) single crystal substrates were characterized to investigate interface morphology and chemistry. Aberration corrected high angle annular dark field scanning transmission electron microscopy reveals the interface between the NiO nanoc…
Spontaneous emission of a two-level system near the interface of topological insulators (TIs) is investigated. Because of the topological magnetoelectric (TME) effect of the TI, the decay rates near a TI interface are substantially inhibited in comparison with that near a dielectric interface, especially for parallel…
This article presents the results of microstructural investigation of high strength concrete containing microsilica and nanosilica (amorphous SiO2) as an active pozzolanic admixture. Micro and nanosilica react with calcium hydroxide producing calcium silicate hydrates (C-S-H), thus the voids and pores within concrete…
The interference nature of resonant Mie scattering, which is described within the Fano model, has been demonstrated. The interference is caused by interaction of an incident electromagnetic wave with reemitted waves that correspond to eigenmodes of a scattering particle. Mie scattering due to the interference can be r…
A simple method using an 800-nm femtosecond laser and chemical selective etching is developed for fabrication of high-aspect-ratio grooves in silicon carbide. Micro grooves with an aspect ratio of approximately 40 are obtained. The morphology and chemical compositions of the grooves are analyzed using a scanning elect…
Kinetic changes in the concentration of source components in a Li2CO3-TiO2-Fe2O3 system during radiation-thermal (RT) synthesis are considered. The phase composition control is realized by X-ray diffraction (XRD) analysis, thermogravimetry (TG/DTG) analysis, and differential scanning calorimetry (DSC). The initial com…
Abstract The unique properties of clays make them suitable for a large number of applications. Among the procedures that can be used to characterize clayey materials, the assessment of the abrasion and the abrasiveness index can be employed to predict the mechanical behaviour of clay samples. However, only a limited n…
Martensitic high carbon high strength SAE 52100 bearing steel is one of the main alloys used for rolling contact applications where high wear resistance is required. Refining the prior austenite grain size through repeated heating is a process commonly used to enhance the material’s strength. In this work, the microst…
A new chelating ligand, 5,5-dimethyl-2-(2-(3-nitrophenyl)hydrazono)cyclohexane-1,3-dione (L), and four transition metal complexes were synthesized. The ligand and its complexes were characterized by IR, H-1 and C-13-NMR spectra, elemental analyses, magnetic susceptibility, mass spectra, UV-Vis. and thermogravimetry-di…
The dynamics and adsorption behavior of a single collapsed homopolymer on a surface in shear flow is investigated by means of Brownian hydrodynamics simulations. We study different homogeneous and inhomogeneous surface models and determine dynamic state diagrams as a function of the cohesive strength, the adhesive str…
The use of a wider writing shingled magnetic recording (SMR) head in spinstand experiments allowed different regions of the SMR track to be analyzed and described. Here, we break the track into curved, best, and trimmed areas. The curved area is written with the writer edge, which has high curvature and poor write fie…
Cauchy Condition Surface (CCS) method is a numerical approach to reconstruct the plasma boundary and calculate the quantities related to plasma shape using the magnetic diagnostics in real time. It has been applied to the KSTAR plasma in order to establish the plasma shape reconstruction with the high elongation of pl…