It was developed a new technique to assess micro- and mesopores with sizes below a few nanometers. The porous materials with hierarchical fractal-percolation structure were obtained with the sol-gel method. The tetraethoxysilane hydrolysis and polycondensation reactions were performed in the presence of salts as the sources of metal oxides. The porous materials were obtained under spinodal decomposition conditions during application of the polymer sol to the substrate surface and thermal treatment of the structures. The model is based on an enhanced Kepler net of the 4612 type with hexagonal cells filled with a quasi-two-dimensional projection of the Jullien fractal after the 2nd iteration. The materials obtained with the sol-gel method were studied using the atomic force microscopy, electron microscopy, thermal desorption, as well as an AutoCAD 2022 computer simulation of the percolation transition in a two-component system using the proposed multimodal model. Based on the results obtained, a new method was suggested to assess micro- and mesopores with sizes below a few nanometrs, which cannot be analyzed using the atomic force microscopy and electron microscopy.

В данной статье рассмотрено применение информационных технологий в медицине и здравоохранении их систематизация, а также влияние на жизнь населения после внедрения.

A model is developed for the formation of porous intragranular architectonics of nanostructured polycrystalline layers of lead chalcogenides for photodetectors and IR emitters. The layers are obtained under the conditions of thermal evaporation in a quasi-closed volume by the “hot wall” method followed by sensitizing heat treatment in an iodine-containing atmosphere. Model concepts are developed considering the experimental results of studying the intragranular structure of lead chalcogenides through original combined AFM methods over the cross-section of porous grains (cores) encapsulated by an oxide shell (lateral force microscopy and local tunneling I–V spectroscopy).

The paper states that the current conditions in which the education system is located, and the rapid development of IT require constant improvement of methodological materials, taking into account the full capacity of the current software. Examples of programs necessary for preparation of methodological materials for high-quality classes are given. The purpose of the paper was to identify the Wolfram Mathematica didactic potential when conducting classes in the disciplines of the geometric and graphic profile at a technical high educational institution. In this paper has been performed analysis of literature sources both domestic and foreign ones on the Wolfram Mathematica system application in science and teaching of various disciplines. It has been shown that the program use scope is very wide, in fact, it is comprehensive and requires additional and in-depth study. Examples of Wolfram Mathematica using in mathematics, physics, chemistry, geometry, robotics, virology, and the humanities are given. In the paper have been provided examples for pedagogical design of simulation models for an electronic course on descriptive geometry in the Moodle system. An example of code written in the Wolfram Mathematica is provided. Interactive models developed during the design are presented, which allow the user to change the constructed curves and surfaces’ parameters. Have been defined some functional capabilities of the system, and has been revealed the Wolfram Mathematica didactic potential for teaching geometric and graphic disciplines. Have been considered other authors’ similar models, which can be used in the educational process to increase the clarity of the material presented in the classroom. In conclusion it is pointed out that interactive visualization in the "Descriptive Geometry" discipline, together with classical working practices, significantly enriches the content of geometric education.

In this paper is investigated the possibility of Augmented Reality (AR) technologies contextualizing in teaching methods for “Descriptive Geometry” (DG) student course. The aim of the investigation was the study of the current state of knowledge and practice in the field of DG students teaching with the help of AR-technologies, and identification of key issues affecting the adoption by users (teachers and students) of AR-technologies as a modern educational tool in the. Conducted an analysis of existing researches in the field of modern educational tool in the field of DG. Has been carried out the analysis of current investigations in the field of DG students teaching based on AR-technology. The key problems affecting the adoption by users of AR-technologies as an educational tool in the field of DG have been determined. Existing methods of DG students teaching using AR-technologies in St. Petersburg Mining University are gradually completed and updated. The work results showed that students have a positive perception of educational classes on DG course based on AR-technologies. Students successfully solve DG problems using AR-technology based on Vuforia platform; create 3-D models of geometric entities in SketchUp, and labels for camera fixing based on AutoCAD. When creating the software, the compiled C ++ programming language is used, based on which scripts (markers) are written that lift 3-D models of objects to given planes. The study results will be useful for developers of AR-platforms, AR-applications in the field of DG students training. They will allow avoid projects that may cause problems with the convenience of AR-applications using, what, in turn, will lead to the rejection of users from the introduction of this technology when getting students education in DG.