Kazan National Research Technological University, KNRTU is an innovational scientific educational complex. The University comprises 15 academic and research institutes; runs over 100 Specialist, Bachelor's, Master's Degree and Ph.D. programs; enrolls over 27,000 undergraduate and graduate students, 900 Ph.D. and 100 Post-Doc students from Russia and other countries; employs over 300 Full Professors, Doctors of Science and 800 Associate Professors, Ph.D.s; raises the budget of 1.4 billion rubles.The partner institutions of Kazan National Research Technological University are 24 universities, research centers and international educational organizations in 13 countries. The University is one of the 6 Russian Universities which are members of Eurasia Pacific University Network (UNINET).D.D.D.
Self-organization, pH, specific electrical conductivity, surface tension, and UV absorption and fluorescence spectra of dilute water—ethanol—estrone solutions (series 1) and water—ethanol (series 2) were studied. A relationship was established between the reorganization of the dispersed phase, non-monotonic changes in the physicochemical properties, fluorescence intensity (λex 230 nm, λem 340 nm), which occur as the systems of series 1 were diluted, and their toxic and harmful effects on the abundance of green algae Chlorella vulgaris and mortality of cladocerans Ceriodaphnia affinis. The highest impact on the hydrobionts was observed in the vicinity of the calculated concentrations of estrone where the most pronounced changes in the size of the dispersed phase, fluorescence intensity, and physicochemical properties were detected. No relationship between structure formation, properties, and bioeffects was observed in dilute solutions of series 2, which are less prone to self-organization and impact on the hydrobionts.
Hydrogen evolution catalysts based on sodium-pectate nickel carbonized complexes are developed. These catalysts are promising for use in water electrolyzers. The leading catalyst with the sodium ions’ 25
This paper presents the results of an experimental investigation of the normal total emissivity (εnt) of EP718 alloy in vacuum within the temperature range of 400–1400 K. The influence of three characteristic surface conditions was systematically studied: polished, as-received (mill-finished), and air-oxidized. It is shown that the surface condition is the determining factor. For the polished and as-received surfaces, good agreement with data for the foreign analogue Inconel 718 is demonstrated. For the oxidized surface, nonmonotonic dependence εnt(T) was observed, with a pronounced decrease at temperatures above 1200 K, which is attributed to the high-temperature degradation of the oxide layer in vacuum. The obtained data are of an estimative character and are of interest for the thermal modeling of gas-turbine engine components.
A study was conducted of ultrafiltration separation of a water-in-oil emulsion based on I-20A oil using polyethersulfone membranes with a cut-off particle mass of 10–300 kDa. The water-in-oil emulsion composition was as follows,
The results of experimental and theoretical studies concerning the removal of sizing and finishing agents from the surface of fibrous fillers for polymer composites are presented. The removal is achieved by exposing the materials to a low-energy ion flow (LEIF) (up to 100 eV) generated in an intermediate-pressure radio-frequency (RF) discharge. A paraffin-based sizing agent and finishes (coupling agents) based on (3‑glycidoxypropyl) trimethoxysilane (GPTMS) and polyethylene wax (PEW) are considered. A Monte Carlo simulation showed that as a result of low-energy ion bombardment, the molecules within the sizing agents and finishes are cleaved into shorter radicals, specifically liquid and gaseous fractions.
