Materials Literature
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This study investigated the effect of silicic acid to the adhesion of Bacillus subtilis to metal oxide-coated surfaces. The first sets of column experiments were conducted under various concentrations of silicic acid. The second and third experiments were performed under various concentrations of sulfate and nitrate t…
The extended Hildebrand solubility parameter approach is used to estimate the solubility of satranidazole in binary solvent systems. The solubility of satranidazole in various dioxane-water mixtures was analyzed in terms of solute-solvent interactions using a modified version of Hildebrand-Scatchard treatment for regu…
A series of novel liquid crystalline supramolecular networks formed through hydrogen bonds have been synthesised. These networks based on a bis benzoic acid and two types of pyridyl species (a distonic bis stilbazole capable of forming liquid crystalline phases and a polyfunctional non-mesogenic pyridyl species) can c…
Polylactic acid (PLA) has been identified as one of the most promising biobased plastics for various applications. The nonrenewable energy use of 1 kg PLA produced in an integrated system where both corn grain and corn stover are harvested and used for lactic acid production has been assessed through life cycle assess…
In metallization processes, metals or metal alloys are used which have a low melting point and good anticorrosion properties. Moreover, they must form durable intermetallic compounds with iron or its alloys. The most common hot-dip metallization technology involves galvanizing, however, molten multi-component metal al…
New advanced low dielectric constant films (spin-on 2.0) with k = 2.0 were prepared by using a self-assembling technology and deposited by the spin-on method. The open porosity of the films was equal to 40% and they exhibit good mechanical properties (Young's modulus for the pristine sample, thermally cured, is 4.77 G…
In this work we have studied the structural and magnetic properties of "as-prepared" multiwalled carbon nanotubes, synthesized by the chemical vapor deposition method, and chemically modified multiwalled carbon nanotubes. Transmission electron microscopy was used to show multiwalled carbon nanotubes structure. The res…
Poly(carbazole-co-pyrene) is successfully achieved by electrochemical oxidation of the monomer mixtures of carbazole (Cz) and pyrene in acetonitrile (ACN) containing sodium perchlorate (NaClO4). FT-IR and 1H NMR characterizations support that the obtained copolymers contain both pyrene and carbazole units. A series of…
This paper shows the arrangement of a partial discharge test circuit can influence the pulse shape, particularly in the laboratory setting. The key circuit parameters and their effect on partial discharge pulse signatures are identified.
The aim of the present paper was to study the effect of some particle recovery parameters on the quality of hydrothermally recycled particleboards. The research was carried out in two phases: rough evaluation of various recovery parameters and determination of the recycled particleboard properties. It was concluded th…
Abstract Recent literature has shown several papers dealing with cryogenic treatments of tool steels. Most of them see an improvement in wear resistance supposedly due to microstructural modifications that occur at cryogenic temperatures. Cryogenic treatments are supposed to modify the way secondary carbides precipita…
Polyurethane (PU)/expanded graphite powder (EGp) composite foams have been prepared by filling mold curing reaction. The morphology and electrical properties of the prepared PU/EGp composite foams have been investigated. The percolation threshold effect of PU/EGp composite foams occur at the content around 5 wt% of th…
Effect of type and consumption of fluorine reagents (HF, NH 4 F·HF, NH 4 F and NaF) on the deposition of rare earth elements from the wet-process phosphoric acid of the dihydrate process was examined.
The effect of soft X-ray irradiation of diamond-like carbon films in vacuum was investigated using synchrotron radiation (SR). Etching and the desorption of hydrogen upon SR exposure in vacuum occurred in highly hydrogenated diamond-like carbon (H-DLC) films; these processes were not observed in the irradiation of a l…
Abstract The present study deals with the creation of so‐called “recovery stresses” in SMA wires. Two approaches are developed. First, experiments are performed on nickel‐titanium wires with suitable transformation temperatures. The wires are stretched in the martensite state at ambient temperature. A thermal cycle at…
Grafts of biological tissues have been used since the 1960s as an alternative to the mechanical heart prostheses. Nowadays, the most consolidated treatment to bovine pericardial (BP) bioprostheses is the crosslinking with glutaraldehyde (GA), although GA may induce calcification in vivo. In previous work, our group de…
Multigraphene films grown by sublimation on the surface of a semi-insulating 6 H -SiC substrate have been studied. It is shown that pregrowth annealing of the substrate in a quasiclosed growth cell improves the structural quality of a multigraphene film. Ohmic contacts to the film have been fabricated, and the Hall ef…
A detailed theoretical study of structural, electronic and vibrational properties of niobium carbide are carried out in rocksalt phase using the density functional theory implemented in ABINIT code. The calculated structural parameters like lattice constant and bulk modulus agree well with the available data. The Zene…
Abstract The performance of Zr1NbSnFe alloys within the range of Sn 0–0.65 % and Fe 0.03–0.35 % were studied through irradiation of fuel rods in two pressurized water reactors (PWRs) operating with significantly different fuel management strategies. Material test rod irradiations have also been launched in order to de…
We fabricated, in a polymer matrix, liquid crystal (LC) nanosized droplets with a correlation length ξ of about 140 nm, which appear as an optically isotropic film. Differential scanning calorimetry (DSC) and light scattering measurements gave unambiguous evidences of an existence of nematic LC (NLC) order and fluctua…