Materials Literature
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To investigate the possibility of inoculating eutectic cells, a novel Al-10Si-2Fe master alloy was synthesized and tested in Sr-modified A356 alloy. The new master alloy that consists of メ-Al, Si and モ-Al5FeSi phases was prepared by a casting process, and the silicon phase was found to grow epitaxially from the モ-Al5F…
Using scanning tunneling microscopy and ab initio simulations, we have identified several configurations for Cu dopants in CuxBi2Se3, with Cu intercalants being the most abundant. Through statistical analysis, we show strong short-range repulsive interactions between Cu intercalants. At intermediate range (>5 nm), the…
A study was made of the influence of aluminium and magnesium hydroxides on certain physicomechanical, processing, and service properties of plasticised polyvinyl chloride. It was shown that the use of a mixture of aluminium and magnesium hydroxides leads to a considerable increase in thermal stability and to an improv…
Poly(vinyl alcohol)PVA is a hydrophilic polymer and water soluble . It is used in many biomedical and pharmaceutical applications, due to its advantages such as: non-toxic, non-carcinogenic, and biodegradable characteristics with the ease of processing. Physically cross-linked hydrogel membranes composed of different…
We have conducted the infrared spectroscopic study and differential scanning calorimetry measurements (DSC) on orthoterphenyl (OTP), aiming to explore the physical nature of the dynamic crossover at 1.2Tg found in variety experiments on OTP. We have obtained that, at T ≤ 1.2Tg (∼290 K) in the supercooled liquid OTP, t…
The action of femtosecond laser irradiation on the optical absorption of gold nanorods has been measured by the pump-probe technique in spectral regions of the longitudinal and transverse modes of surface plasmons. The evolution of the parameters of plasmon absorption bands, namely, peak positions and band widths, aft…
Streszczenie Přehledový článek sleduje vliv přídavku chemických látek do cementu na korozní chování žárově zinkované oceli v čerstvém betonu. Z hlediska původu je diskutován nejen vliv anorganických látek (chromanů a peroxidu vodíku), ale i skupiny organických látek (derivátů imidazolu a benzimidazolu). U jednotlivých…
Proper winding of the steel rope around the winch drum is great importance, mostly for: prolonging the service life of the rope, reduction of deformations of the body and the sides of the drum if the winding of the rope is multilayered, increasing of the safety factors, easier unwinding of the rope while lowering the…
A heteroligand complex [Sm(Biq)(iso-Bu2PS2)3] n (Biq = 6,6′-biquinoline) is synthesized. According to the X-ray diffraction data, the complex is one-dimensional coordination polymer. The crystal structure is built of chains consisting of fragments Sm(iso-Bu2PS2)3 and molecules of the bidentate-bridging ligand Biq. The…
Abstract not provided.
A bi-functional cationic agent was synthesized and was applied for cationization of cotton fabric. Pad-batch and exhaustion application processes were compared and dyeing levelness, adsorption isotherm, and effect of Na 2 CO 3 on fastness were discussed. Results showed that the bi-functional cationic agent treated fab…
Manufactured nanomaterials (NMs) are used for various purposes, e.g., as catalysts in chemical reactions, drug delivery devices and consumer products such as sunscreens and cosmetics. Concerns about the potential ecotoxicological effects of NMs are increasing in part because they might have different toxicological cha…
To improve the mechanical properties of heavy section ductile cast iron, bismuth (Bi) was introduced into the iron. Five castings with different Bi content from 0 to 0.014 wt.% were prepared; and four positions in the casting from the edge to the center, with different solidification cooling rates, were chosen for mic…
(Ca0.9Mg0.1)SiO3ceramics possess a low dielectric constant and a highQfvalue, however, the densification temperature of (Ca0.9Mg0.1)SiO3ceramics is higher than 1280°C. In this paper, the effect of Li2CO3addition on sinterability and dielectric properties of (Ca0.9Mg0.1)SiO3ceramics were studied. The phase presence and…
In this paper, the morphological transition from dendrite to symmetry-broken dendrite is investigated in the directional solidification of non-axially-oriented crystals using a quantitative phase-field model. The effects of pulling velocity and crystal orientation on the morphological transition are investigated. The…
We have previously reported the free radical scavenging activity of a protein with a molecular weight of 90 kDa (90kDa protein) isolated from the scallop shell. In this study, we found that the 90-kDa protein also shows protease activity. The protein was most active at an alkali pH and at 60°C, and its activity was in…
A structural parametric model of the multilayer electro-magneto-elastic actuator of nano and micro displacements is obtained based on solving matrix equations and used to find its transfer functions. Static and dynamic characteristics of such actuator are calculated. Multidimensional structural parametric model and pa…
The electronic band structures of zinc blende and wurtzite GaN and InN are calculated using the empirical pseudopotential method, with the form factors adjusted to reproduce correctly the most important band features. To this end, a comprehensive analysis and comparison with several experimental and theoretical data r…
The cover image is a pop art representation of a shell architecture on fluorescent nanodiamond. As P. Cigler and co-workers report on page 1106, the diamond nanoparticle is embedded in a silica shell, which is terminated by a hydrophillic, azide- or alkyne-substituted PEG polymer. In contrast to unmodified nanodiamond…
Decolorization of Remazol Brilliant Blue R (RBBR) by Trametessp. Pellets was studied in a batch reactor. Dye removal process was performed in shaken flasks which contained 100 ml of RBBR aqueous solution and fungal pellets. The process was followed for 48 h and the dye removal was analyzed at a visible spectrum of 590…