Solidus Surface of the Mo–Fe–B System

Powder Metallurgy and Metal Ceramics - The arc-melted Mo–Fe–B alloys with boron content up to ~41 at.% were studied after annealing at subsolidus temperatures by X-ray diffraction,...     

Electronic Excitation Energy Transfer in an Array of CdS Quantum Dots on a Quasi-Two-Dimensional Surface

Semiconductors - The optical spectra of films composed of spherical silicon-dioxide particles coated with small-radius CdS quantum dots are recorded and analyzed. Large shifts of the absorption and...     

Shortening grammar based on the renewed classification of chemical nomenclature morphemes for use in the “nomenclature generator” software complex

An up-to-date classification of chemical nomenclature morphemes is presented as the basis for formalizing rules of shortening the grammar used in the Nomenclature Generator software-technological complex for translating names of organic compounds into structural graphs.     

Hematological Parameters and the State of Liver Cells of Rats After Oral Administration of Aflatoxin B1 Alone and Together with Nanodiamonds

Hematological parameters and the state of liver cells of rats were examined in vivo after the animals received aflatoxin B₁ (AfB₁) alone and together with modified nanodiamonds (MND) synthesized by detonation. The rats that had received the MND hydrosol had elevated leukocyte levels, mainly due to higher granulocyte counts and somewhat increased monocyte counts compared to control rats. Hematological parameters of the rats that had received AfB₁ alone differed from those of the control rats in another way: total white blood cell counts were significantly lower due to the decreased lymphocyte counts. In rats that had consumed AfB₁ with the MND hydrosol, changes in hematological parameters were less pronounced than in rats that had consumed either AfB₁ or MND. Electron microscopy showed that hepatocytes of the rats that had received the MND hydrosol or AfB₁ with the MND hydrosol contained elevated levels of lipid inclusions and lysosomes. Hyperplasia of the smooth endoplasmic reticulum (EPR) was revealed in liver specimens of the rats that had received AfB₁. Results of the study suggest the conclusion about mutual mitigation of the effects of nanoparticles and the mycotoxin on rats blood and liver cells after AfB₁ has adsorbed on MND.     

Mathematical model for choosing the preferable range of concentrations of ligands as components of solutions for alloy electrodeposition

Based on a statistical analysis of the information on the composition of solutions for the electrodeposition of A-B alloys, a mathematical model is proposed that makes it possible to choose the preferable range of the total concentrations of ligands in solutions for alloy electrodeposition. The prediction by the model is verified by known and new experimental data.     

Structure fragmentation in Fe-based alloys by means of cyclic martensitic transformations of different types

The effect of martensite transformations of different types on the misorientation of austenite crystalline lattice, which characterizes the degree of structure fragmentation, was investigated for Fe-Ni and Fe-Mn alloys. As a result of multiple face-centered cubic (f.c.c.)-body-centered cubic (b.c.c.)-f.c.c. transformations, an austenite single-crystalline specimen is transformed in a polycrystalline one due to progressive fragmentation. It was shown that the degree of fragmentation depends on the magnitude of volume change and the density of dislocations generated on martensitic transformations.     

Logistic model for choosing ligands for alloy electrodeposition

Analysis of the relative location of the polarization curves obtained for the electrodeposition of two metals from ligand-free and ligand-containing solutions is used to construct a logistic model. The model can be used for predicting the zones of allowed values for the stability constants of complexes the reduction of which is accompanied by the formation of an alloy. It can also be used for choosing ligands with the help of these data. The experimental data available in the literature agree well with the results predicted by the model. As a result, conditions of practical importance for choosing ligands for the simultaneous reduction of complexes and alloy formation were formulated.     

Bioengineering of glass surface

The possibility of implementing a new scientific field—bioengineering of glass surface—was considered. The growth of different diatom algal cultures and the density of their immobilization on the surface of glass were studied. The experimental results that confirm the possibility of the bioengineering formation of glass surface micro- and nanostructures using diatom algae were represented.