Periodic point free homeomorphisms and irrational rotation factors

We provide a complete characterization of periodic point free homeomorphisms of the $2$ -torus admitting irrational circle rotations as topological factors. Given a homeomorphism of the $2$ -torus without periodic points and exhibiting uniformly bounded rotational deviations with respect to a rational direction, we show that annularity and the geometry of its non-wandering set are the only possible obstructions for the existence of an irrational circle rotation as topological factor. Through a very precise study of the dynamics of the induced $\rho $ -centralized skew-product, we extend and generalize considerably previous results of Jäger.

Can we Modify our Pleasures? A New Look at Kant on Pleasure in the Agreeable

Many of us are all too familiar with the experience of taking pleasure in things we feel we ought not, and of finding it frustratingly hard to bring our pleasures into line with our moral judgements. As a value dualist, Kant draws a sharp contrast between the two sources of practical motivation: pleasure in the agreeable and respect for the moral law. His ethics might thus seem to be an unpromising source for help in thinking about how we can bring our agreeable pleasures into line with our moral values. But I argue that a careful reading of Kant’s texts reveals a helpfully realistic view about the extent to which we can modify our agreeable pleasures. On my interpretation, Kant shows us how to hold together two seemingly incompatible ideas: on the one hand, that pleasure in the agreeable is resistant to rational direction, and on the other hand, that we can cultivate these pleasures with a view to ethical self-transformation.

The influence of cavitation effects on the purification processes of beet sugar production juices

The existing technology for the purification of diffusion juice and its hardware design has not fundamentally changed over the past four decades. The lack of the necessary theoretical developments and experimental data hinders the development of existing and the development of new technological processes. Therefore, the main direction of improving the purification efficiency of juices of sugar beet production is the disclosure of its unused reserves and their implementation in practice. The scientific problem of choosing the rational direction for improving the technology of juice purification, which ensures the production of consumer granulated sugar in the face of changes in a wide range of quality of raw materials, is relevant and has important economic importance, especially in the context of the transition of beet sugar factories to a market economy. One way to solve it is to make fuller use of the adsorption capacity of calcium carbonate particles while increasing the filtration properties of saturation sediments. Therefore, the study investigates the effect of cavitation effects – vapor condensation and hydrodynamic processing of diffusion juice on the processes of purification of diffusion juice, juices of preliminary defecation, first and second saturations. The analysis of the influence of various effects of cavitation processing of juices from the point of view of improving the purification efficiency, the optimal place of the purification process in the technological scheme of production is established.

Controlling the Alignment of 1D Nanochannel Arrays in Oriented Metal-Organic Framework Films for Host-Guest Materials Design

Here, we successfully prepared macroscopically oriented films of Cu-based pillar-layered MOFs (Cu₂(Linker)₂DABCO) having regularly ordered 1D nanochannels. The direction of 1D nanochannels was controllable by optimizing the crystal growth process; 1D nanochannels either perpendicular or parallel to substrates, which offer molecular-scale pore arrays for a macroscopic alignment of functional guest molecules in the desired direction. We also showed the fabrication of oriented Cu₂(Linker)₂DABCO MOF patterns, where the direction of 1D nanochannels is controllable on individual locations on the same substrate. These Cu₂(Linker)₂DABCO MOF films and patterns with controlled orientation are importante steps towards the development of MOF film-based applications such as sensors and electrical/optical devices because functionalities derived from the accommodated guest species in their 1D nanochannels are optimized for the rational direction on the desired substrate for the device fabrication.<br>

Controlling the Alignment of 1D Nanochannel Arrays in Oriented Metal-Organic Framework Films for Host-Guest Materials Design

Here, we successfully prepared macroscopically oriented films of Cu-based pillar-layered MOFs (Cu₂(Linker)₂DABCO) having regularly ordered 1D nanochannels. The direction of 1D nanochannels was controllable by optimizing the crystal growth process; 1D nanochannels either perpendicular or parallel to substrates, which offer molecular-scale pore arrays for a macroscopic alignment of functional guest molecules in the desired direction. We also showed the fabrication of oriented Cu₂(Linker)₂DABCO MOF patterns, where the direction of 1D nanochannels is controllable on individual locations on the same substrate. These Cu₂(Linker)₂DABCO MOF films and patterns with controlled orientation are importante steps towards the development of MOF film-based applications such as sensors and electrical/optical devices because functionalities derived from the accommodated guest species in their 1D nanochannels are optimized for the rational direction on the desired substrate for the device fabrication.<br>

MEDICAL INSTITUTIONS IN THE WORK OF ARCHITECT NIKOLAI MATVEEVICH SOKOLOV. COMPARATIVE ANALYSIS

The article considers the Nikolaev city hospital in Rostov-on-don and a complex of city hospital in Azov constructed under the project of the city architect of the end of XIX - the beginning of XX century Nikolai Matveevich Sokolov. Sokolov is a representative of the rational direction of architecture of the XIX century. The article solves the problem of determining in these works the general trends inherent in the architecture of the turn of the XIX-XX centuries, as well as the features of the N. M. Sokolov work. Search and identification of analogs of medical institutions which architecture influenced external and internal shape of the considered objects is made. The basic conditions of design, value of objects in historical building are also defined. The purpose of the study is to identify the features of the creative method of the master on the example of the design of medical institutions. The article reveals the unknown facts of the creative activity of Nikolai Matveevich Sokolov, introduces new factual data, systematizes information about the creative heritage of the architect. A comparative analysis of the studied objects and known examples of hospital architecture of the late XIX - early XX centuries are performed, similarities and features of the works of N. M. Sokolov are identified.

ROMANTICISM IN THE ARCHITECTURE OF APARTMENT HOUSES OF NIKOLAI MATVEEVICH SOKOLOV

The article is devoted to the identification of romantic trends in the work of the Rostov city architect of the late XIX - early XX century Nikolai Matveevich Sokolov, reveals unknown facts of this stage of his creative activity. Most of N. M. Sokolov's works are objects of cultural heritage of regional and Federal significance. The architect was a consistent supporter of the rational direction of architecture, was a master of the «brick style». At the same time in his works, in the apartment houses under consideration, romantic features are clearly traced. The purpose of the study is to consider the objects inherent in the romantic direction of the second half of the XIX-early XX centuries, their analysis and systematization of data. The problem of this study is to identify romantic trends in the works of architect N. M. Sokolov, which influenced the creative activity of Nikolai Matveevich as a city architect of Rostov-on-don, the objects of which form the historical part of the city. The authors revealed new facts of the biography and creativity of the architect, introduced new archival materials into scientific use, systematized information about the life of the architect and his creative heritage. Special attention is paid to the current state and protection of the works of architect Nikolai Sokolov Matveevich.

THE INFLUENCE OF «ARCHITECTS-MENTORS» ON THE CREATIVITY OF ARCHITECT NIKOLAI MATVEEVICH SOKOLOV

The article considers the influence of masters, teachers in the Institute of Civil engineers – I.S. Kitner, V.A. Schroter on the activity of Rostov city architect N.M. Sokolov in the late XIX – early XX century Sokolov. Unknown facts of an early stage of his creative activity are revealed. The features of his creative method formed under the influence of «architects-mentors» are presented. The problem of the study is to identify the characteristic of the architectural activity of the mentors who influenced the future life and creative activity of Nikolai Matveevich as the city architect of Rostov-on-don, whose objects form the historical part of the city, many of which are objects of cultural heritage. The study is aimed at revealing the features of the architecture of the «brick style» in the works of Sokolov, formed under the influence of teachers of the Institute of Civil engineers – Kitner, Schroter – adherents of the rational direction of architecture of the XIX century. The article introduces the new factual data, the comparative analysis of Kitner and Schroter analogues with objects of Sokolov, the systematic information about the life of Sokolov, his creative legacy

The Use of Products Disposal of Bottoms Residues as a Hydrophobic Additive

The most rational direction of disposal of industrial waste is their use in obtaining products for construction purposes, such as concrete. For the purposeful regulation of the structure and properties of cement mortars and concretes, special highly effective additives-modifiers to concrete are widely used to increase strength and durability. In this paper, it was proposed to use the product disposal of bottoms residues as a hydrophobic additive – a composite material in the form of a fine powder. Disposal products, containing in their composition hydrophobic wax substances and silica-containing sorbents, give strength and water resistance to cement brick due to the manifestation of the acquired property of bulk hydrophobization. By keeping the samples in a solution of Na2SO4, the hydrophobic properties of the disposal products were confirmed. Concrete with the addition of a disposal product, obtained on the basis of the decontamination composition CaO:SFDP:spent silica gel, has the best performance.

Features of the orbital motion control of geostationary satellites in the conditions of their collocation

The article describes the analysis of features of safe orbital motion control for two geostationary satellites in one orbital zone. Under the given assumptions and limitations, the methods of controlling the satellite orbit eccentricities and inclinations by means of corrections, ensuring the implementation of the I-E-collocation method, are investigated. The result of research is the development of rational strategies for controlling the orbit eccentricities and inclinations of two satellites. The strategy of controlling eccentricity is a modification of the sun pointing perigee strategy and is called the quasi-sun pointing perigee strategy. The strategy of controlling inclinations takes into account the evolution of the orbital inclinations under the influence of the gravitational potentials of the Sun and the Moon in certain periods of the year and at different positions of the Moon orbit line of nodes. The developed strategies provide for reducing the fuel cost for the orbital parameter corrections at collocation of two satellites since eccentricity corrections are partially combined with corrections of satellite hold in longitude, and inclination corrections are performed in the most rational direction opposite to the direction of inclination vector growth