Volga State University of Water Transport

About: Volga State University of Water Transport is a education organization based out in Nizhny Novgorod, Russia. It is known for research contribution in the topics: Attractor & Deformation (engineering). The organization has 71 authors who have published 75 publications receiving 224 citations.

Problems of Virtualization and Internetization of Social Space

Abstract: Relevance. In conditions of modern development of information in society, the problem of studying processes of informatization of social space becomes relevant for the methodology of philosophical, humanitarian and social knowledge. However, as shown by analysis of scientific literature on this issue, the categorical apparatus that determines the essence of the information society remains not yet fully developed. In particular, both in foreign and domestic scientific literature introduced the concepts of “virtualization”, “virtual reality” and “internetization”. However, introduced concepts do not have their own clear meaning, which leads to the identification of concepts “social” and “virtual”. As a result, when analyzing the processes of Internet social space, researchers can not clearly dissociate such concepts as “social reality” and “virtual reality”.

Improving energy performance power station of ship with integrated electric propulsion

Abstract: The article presents the method of calculating the power plant fuel consumption on the basis of diesel-generating installation (DGI) with variable speed for ships with integrated electric propulsion. Application DGI with variable speed allows saving fuel and therefore reducing harmful emissions into the atmosphere. In the paper calculated the fuel efficiency of unified power station on the basis of a variable speed DGI power of 1000 kW.

Martensitic Transformation in Low-Carbon Steels

Abstract: Isothermal and thermokinetic martensitic transformations in low-carbon martensitic steels have been studied. Amodel is proposed that relates the mechanical state of the austenite, as dependent on the parameters of thermal treatment and the law of the grain size distribution, to the volume fraction of transformed martensite. Physical constants of the transformation are determined.

Dynamics of acousto-convective drying of sunflower cake compared with drying by a traditional thermo-convective method

Abstract: The article is devoted to the dynamics of sunflower cake drying in a fundamentally new acousto-convective way. Unlike the traditional (thermo-convective) method, the method proposed allows extracting moisture from porous materials without supplying heat to the sample. Thermo-vacuum drying helped to determine the absolute and relative initial moisture for the analysed samples of the sunflower cake, which equaled 313.1% and 75.8%, respectively. The kinetic curves for drying by thermo- and acousto-convective methods were obtained and analysed. A study of the acousto-convective drying of sunflower cake showed that the rate of moisture extraction depended on the resonating frequency, while there is an optimal mode in which drying proceeds from two to three times more intensively. In thermo-convective drying of sunflower cake, increasing the temperature of the drying stream twice (from 74.2°C to 127°C) reduces the duration of drying to a final absolute humidity of 40% three times. Comparing the thermo-convective and acousto-convective drying methods showed that twice as much moisture was removed from the samples dried by the (ACDP) with a flow frequency of 790 Hz and at room temperature for a 30-minute interval as with thermal convective drying with a working flow temperature of 127°C. The relaxation mathematical model used to describe the drying phenomenon and the experimental data for sunflower cake drying allows obtaining the quantitative parameters characterizing different modes and methods of drying the samples under study. The article analyses a discrete drying regime that contributes to increasing the efficiency of the acousto-convective mode of moisture extraction.