Materials Literature
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Nanotechnology offers substantial prospects for the development of state-of-the-art products and applications for agriculture, water treatment, and food industry. Profuse use of nanoproducts will bring potential benefits to farmers, the food industry, and consumers, equally. However, after end-user applications, these…
BACKGROUND: Aminosilane-coated iron oxide nanoparticles (AmS-IONPs) have been widely used in constructing complex and multifunctional drug delivery systems. However, the biocompatibility and uptake characteristics of AmS-IONPs in central nervous system (CNS)-relevant cells are unknown. The purpose of this study was to…
Ti-doped barium ferrite powders BaFe12−xTixO19 (x = 0, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7 and 0.8) were synthesized by the sol–gel method. The phase structure and morphology were analyzed by x-ray diffraction (XRD) and scanning electron microscopy, respectively. The powders were also studied for their magnetic properties an…
Graphene, a single atom thick carbon material with high surface area and electrical conductivity provides an ideal platform for designing high performance electrochemical devices. This paper reports the synthesis of phosphorous doped graphene from reduced graphene sheets, its characterization by scanning electron micr…
Semiconductor quantum dots and metal nanoclusters are fluorescent nanoparticles with diameters in the few-nanometer range. In recent years, they have captured a great deal of attention as experimental tools in the life sciences for diverse applications including imaging, bioassays and therapy. It is crucially importan…
Rapid advancements in carbon-based fillers have enabled a new and more promising platform in the development of electromagnetic attenuation composites. Alignment of fillers in composites with specific structures and morphologies has been widely pursued to achieve high performance based on taking advantage of unique fi…
Silica nanoparticles (SiO2 NPs) have been shown to exert cytotoxic effects in hepato-cytes and to cause liver injury. In the liver, Kupffer cells (KCs), as the resident macrophages, play an important role in the normal physiology and homeostasis of the liver. Nevertheless, few studies have attempted to clarify the rol…
The increasing levels of CO2 in the atmosphere are indicated as a major contributor to the enhanced greenhouse effect. There are several options to reduce these levels and the Carbon Capture and Storage (CCS) is identified as an effective way to decrease the concentration of this gas. In this work, it is present the i…
The steel production through Electric Arc Furnaces (EAF) generates approximately 15% to 20% of Electric Arc Furnace Dust (EAFD). This waste is considered dangerous due to the presence of metals as lead and cadmium that leach in contact with water. Because of this, the EAFD recycling becomes an alternative to diminish…
This work presents the modeling by the finite element method of the first cold rolling pass of a four-high mill at the CSN steel plant. For this purpose, a two dimensional model is proposed considering the work-roll as a rigid surface together with the assumptions of plane-strain state for the strip and material isotr…
Reinforced concrete is the most widely used construction material in the world. The combination of high compressive strength, afforded by concrete and, and the excellent mechanical properties that characterise steel make it an ideal composite for all manner of structures. One of the main weaknesses of this material, h…
The steel demand for fine applications have increased considerably in the last years, and the criteria for its production are even stricter, mainly in relation to the residual elements content and cleanness required. In relation to the steel cleanness, the main problem faced is the control of the amount and morphology…
Austenitic stainless steels wires are widely used in the final stages of orthodontic treatment. The objective of this paper is to study the process of conformation of rectangular wires from round wires commercial austenitic stainless steel AISI 304 by the process of cold rolling. The wire quality is evaluated by means…
editorial
ARGET (activators regenerated by electron transfer) ATRP (atom transfer radical polymerization) has been successfully performed (in flasks fitted with rubber septa without the need for use of Schlenk line) in the presence of limited amount of air and with a very small (370 ppm) amount of copper catalyst together with…
The occupational risk management model in case of the machine workshop is offered. The model is aimed at minimizing the potential negative factors effect of an operating environment on the workers, and, as consequence, the reduction of industrial injuries and occupational diseases. The generalized quantitative data of…
A whole complex of factors that may facilitate the effective training organization in the nonstate economic university is proved. In this case, each of the mentioned factors is regarded as a conceptual idea developing in the accordance with the common concept of the nonstate educational institution of the higher vocat…
Long-term change of the solonetzic salted chestnut soil complex of dry steppe after their agrotechnical improvement with a new facility of rotor plowing and mixing of illuvial and lower layers of soil is studied. Some technical parameters of the devices for soil-meliorative rotor-milling processing are discussed. More…
Various production methods are realized on the milling and drilling machines. A general approach to the model construction for the vibroacoustic dynamics of the oscillating system “spindle unit — cutting tool” is presented. On the pattern millers, boring and drilling are performed apart from the customary milling. Con…
As part of the plane strain, the problem on steady oscillations of the inhomogeneous through-thickness isotropic poroelastic layer with voids is considered. The layer bottom is connected with the perfectly rigid foundation, the oscillations are caused by the surface stress on the top face. Under the known inhomogeneit…