On Spontaneous Dispersion as a Cause of Microstratification of Metal Melts.

The phenomenon of spontaneous dispersion is considered as the cause of the microstratification of metal melts. In a microstratification melt, a violation of long-range order in the arrangement of atoms (LRO) is observed, which corresponds to a dispersed particle size of more than 2 nm. Microseparation occurs due to spontaneous dispersion upon contact of liquid and solid metal or the mixing of two liquid metals.

Melting, Solidification, and Viscosity Properties of Multicomponent Fe-Cu-Nb-Mo-Si-B Alloys with Low Aluminum Addition.

Melting, solidification, and viscosity properties of multicomponent Fe-Cu-Nb-Mo-Si-B alloys with low aluminum addition (up to 0.42 at.% Al) were studied using an oscillating cup viscometer.

Isobaric Thermal Expansivity and Isothermal Compressibility of Liquid Metals.

The relationship between the volumetric thermodynamic coefficients of liquid metals at the melting point and interatomic bond energy was studied. Using dimensional analysis, we obtained equations that connect cohesive energy with thermodynamic coefficients. The relationships were confirmed by experimental data for alkali, alkaline earth, rare earth, and transition metals.

Permeability of Magnetic Cores with Air Gaps.

The influence of the geometric dimensions of the cut core and the number and size of air gaps on the effective permeability was investigated. Using dimensional analysis, an equation was obtained that relates the permeability of the cut core to the simplest dimensionless combination of the mean magnetic flux length , single air gap length , the cross-sectional area of the core, and gap number . Permeability calculated from the geometric parameters of the cut core was compared with the effective permeability obtained using a two-dimensional FEMM simulation.

Kinematic Viscosity ofMulticomponent FeCuNbSiB-BasedMelts.

The work investigated the temperature dependences of the kinematic viscosity for multicomponent melts of nanocrystalline soft magnetic alloys. It is shown that there is a linear relationship between the reduced activation energy of viscous flow ·() and the pre-exponential factor ν. This ratio is universal for all quantities, the temperature dependence of which is expressed by the Arrhenius equation.

Nanocrystalline Soft Magnetic Iron-Based Materials from Liquid State to Ready Product.

The review is devoted to the analysis of physical processes occurring at different stages of production and application of nanocrystalline soft magnetic materials based on Fe-Si-B doped with various chemical elements. The temperature dependences of the kinematic viscosity showed that above a critical temperature, the viscosity of multicomponent melts at the cooling stage does not coincide with the viscosity at the heating stage. Above the critical temperature, the structure of the melt is more homogeneous, the amorphous precursor from such a melt has greater plasticity and enthalpy of crystallization and, after nanocrystallization, the material has a higher permeability.

[Endoscopic treatment of cicatricial esophageal strictures using ionized argon plasma (with commentary)].

Aim: To estimate an efficacy of endoscopic treatment of benign cicatricial esophageal strictures using ionized argon plasma.

Material And Methods: It is presented treatment of 35 patients with post-ambustial and 17 patients with peptic strictures of the esophagus. Their age ranged from 17 to 73 years.

CHANGES IN BURNING WOUND IN APLLICATION OF MAGNETO-PLASMATIC THERAPY.

The article analyzed treatments results of 76 patients with deep burns. It was stated that magneto-plasma therapy facilitated to the change from an inflammatory type of burn cytograms to regenerative type. These changes were expressed in reducing of neutrophil quantity in wound on the fifth day, decreasing of degenerative changed leukocytes on the tenth day, increasing of phagocytic activity of neutrophils in all terms, growing of macrophage reaction by the fifth day and multiplication of fibroblast quantity in wound on the tenth day.

[The use of Timalin in the treatment of the acute lung abscess].

The study was aimed to research levels of main acute inflammation phase peptides, coagulative and fibrinolitic plasma activity on the background of traditional treatment and with addition of Timalin in patients with acute lung abscess. The study demonstrated that induction of bioregulative therapy leads to faster normalization of main indicators of SIRS and plasma fibrinolitic activity and eliminates hypercoagulation.

[Content of antibodies to heat shock proteins in uncomplicated and complicated course of acute appendicitis].

The article presents information on the content and dynamics of changes in heat shock protein (HSP-70) in plasma and serum of patients with acute appendicitis before and after treatment. It was shown that higher content was noted in the group of patients with a complicated course. The use of traditional methods resulted in the decreased level of HSP-70 but in the group of patients with a complicated course the concentrations of shaperons remains elevated.

Immunostimulating activity of synthetic bursopeptides.

Biologically active peptides bursopeptide-1 (Tyr-Glu-Glu) and bursopeptide-2 (Trp-Thr-Ala-Glu-Glu-Lys-Gln-Leu) from the bursa of Fabricius were isolated and synthesized. Bursopeptide-1 stimulated expression of B cell differentiation antigens in lymphocyte culture from patients with burns. Bursopeptide-2 produced a variety of effects and stimulated expression of differentiation antigens on T and B cells and natural killer cells.

[The effect of kordaron on thyroid function in patients with ischemic heart disease].

Thyroid function has been assessed in 56 patients with arrhythmic coronary heart disease (CHD) prior to and in the course of cordaron treatment. TTH level made up initially 1.39 +/- 0.

[Subclinical hypothyroidism in patients with ischemic heart disease].

A total of 187 patients with coronary heart disease (CHD) were examined. Out of them 60% were found as having subclinical hypothyroidism. The serum levels of T3 were significantly lower, particularly in arrhythmic CHD, the level of T4 was normal and even increased, thus making the concentrations of TTG normal, i.

[Cardiosynchronized perfusion of the coronary sinus as a method of myocardial revascularization].

The possibility of revascularization of the myocardium in acute ischemia by means of cardiosynchronized retrograde perfusion of the coronary sinus with arterial blood was studied. Signs of a decrease of the ischemic zone and improvement in the metabolism of the intact myocardium were noted.