Synthesis of the TiO2 nanoparticles was carried out by sol-gel method. The optimal conditions for stable TiO2 gel obtaining was determined. The resulting samples were studied by IR spectroscopy. Studies have shown the presence of chemically and physically bounded water in TiO2 powders, dried at 125 ° C. Studying of the influence of the pH on the acid-base properties of the surface of the resulting TiO2 powders was performed by indicator method.

Keywords: TiO2 nanoparticles, sol-gel method, acid-base properties, indicator method, infrared spectroscopy, pH of the medium

There are new options of reinforcement hollow core slab. The essence of the proposed solutions is to install the rod into the groove located below the voids of the slab. Describes the field of rational use, as well as design and fabrication of these options of reinforcement.

Keywords: reinforcement of building constructions, safety operation, hollow core slab, normal section

The manuscript traced the impact of changes in the content of alkaline-earth elements on the dielectric spectra of solid solutions based on lead titanate. Two concentration areas with sharply differing nature of the manifestations of dispersion phenomena were identified. First (0.02≤α1≤0.24) is characterized by strong dispersion ε/ε0 in all temperature range and not allow to generate maximum of ε/ε0 for Curie temperature at low frequencies, the second (0.24≤α1≤0.36) - a sharp decrease of Δε in the ferroelectric phase and complete disappearance of it in the solid solutions, SS, with α1 = 0.36, indicating stabilization of the structure with the introduction of alkaline SS elements. It was found that as increased the concentration of modifiers in the compositions there is a stabilization of their structure with a gradual decrease in the phase transition temperature. Formation of two concentration areas where changes macro properties SS is undoubtedly a consequence of their correlation with the phase diagram of the studied SS, which is experiencing a transformation in the neighborhood of α1 ~ 0.24, due to the transition from two-phase to single-phase state. The results obtained by the authors can be used in the development of high-temperature (α1 0.24 ) anisotropic ferroelectric materials.

Keywords: ferroelectric piezoceramics, lead titanate, alkaline earth elements, modifiers, solid phase synthesis dielectric spectra

In this paper, the concept of chromatic set of fuzzy temporal graph is introduced. Chromatic set of fuzzy temporal graph is a generalization of one side of a fuzzy, but on the other hand - temporal graphs. The degree of connectivity vertices changes in discrete time in a fuzzy temporal graph. Most of isomorphic transformations of fuzzy temporal graph change their external representation without changing its signature. In this regard, matters relating to the consideration of temporal invariants of fuzzy graphs. Example of finding chromatic sets of fuzzy temporal graph is considered here.

Keywords: Fuzzy temporal graph, fuzzy partial graph, graph coloring, chromatic set, the degree of separability

In order to assess the strength of the bone tissue in patients undergoing joint replacement of the knee or hip joint, resected bone fragments were tested on a test-stand, ИСС/М-Scaime ZF-500, installed at the department of traumatology and orthopedics of the Rostov state medical university. Later, the bone strength indicators were compared to the following: data obtained from densitometry, gender, age and the osteoporosis risk factors of the patient. Based on multivariate analysis, medical treatment and rehabilitation methods were devised for the patients after a joint replacement of the knee or hip joint.

Keywords: osteoporosis, osteopenia, bone strength, knee joint replacement, hip joint replacement, test-stand.

When creating and using of medical systems and devices for various applications, considerable importance is periodic verification and testing of such systems and devices. In addition to checks are also conducted medical and technical tests in setting on the production and commissioning. This article discusses an approach to the construction of optimal calibration systems and devices for testing of medical devices that are used to create and maintain modern medical technology. The most popular and accessible systems from companies such as General Electric Medical Systems IT, Natiоnal Instruments, DIATEST considered in this article. The estimation of the effectiveness of these devices in various stages of development and testing of medical devices. The paper discusses examples of the construction with the use of modern laboratory information environment LabVIEW. The present approach permits to select a sufficiently effective suite for verification and testing of medical devices in the company and for the training of students. Based on the findings made in the article, you can choose the most appropriate complex for initial verification of medical equipment and for periodic calibration.

Keywords: calibration, testing, medical equipment, instrumentation, electrophysiological signals, automation

Currently, counterfeit goods began dating in all types of consumer goods. The sector of textile products is one of the most susceptible to counterfeiting. A lot of companies confronted with the problem of counterfeiting of their products on a commercial scale. One of the promising directions in the area of protection against counterfeiting of products is the use of RFID technology. On the basis of one of the basic RFID standards established technology NFC, electronics manufacturers inserted into the smartphones the corresponding module. Using NFC technology, together with the developed system for the identification of products can serve as additional, and for some companies and the only protection against forgery.Each item in the system has a unique QR-code link to the page containing detailed information. Link consists of a website address and a unique identifier. The resulting QR-code may be printed on the label of the product, which is integrated with the NFC tag containing the same unique identifier. QR-code reading is carried out by appropriate application. NFC tag reading is possible if the corresponding module, which is now present in most mobile devices. The owner of a mobile device, comparing the received code, be able to distinguish original products from counterfeits.

Keywords: counterfeit goods, RFID technology, two-dimensional coding, QR-code

The morphology of the modified Portland cement hydration products was studied transmission electron microscopy. The combined effect of polyvinyl alcohol (PVA) and sucrose on the morphology of hydrosilicates nanoparticles has a synergistic character. he presence of PVA enhances the effect of sucrose. The effect of synergism must be considered in the preparation of multicomponent modifier compositions including PVA

Keywords: "modified cement stone, transmission electron microscopy, the morphology of nanoparticles of hydrosilicates, sucrose, PVA, synergistic effect. "

In this article the social health of the student youth as a social phenomenon is considered in the context of the theory of structural marginality. The author describes and explains the condition of the marginalized status of the student youth of the South of Russia. Social health of the student youth of the South of Russia is a reflection of the degree of her marginal position in society.

Keywords: Social health, Russian student youth, structural marginality, status, social value, satisfaction with life, the South of Russia

In this paper, the technology of process simulation shooting remote sensing the Earth's surface in the optical spectrum of the radiation on the software and hardware complex. With his help, describe and forecast the qualitative characteristics of shooting in the simulation with high resolution linear assessment on the ground.

Keywords: remote sensing of the Earth's surface, software and hardware, virtual ground, the speed of movement of the image, panchromatic imagery, multispectral imagery, linear ground resolution

It reveals the triad approach in the "man - military equipment" to ensure the harmony and integrity of the system. Application of the "golden mean" in the distribution of resources and benefits for high quality development and operation of three-dimensional system "service living environment - the military staff - military equipment."

Keywords: urban planning, military, armed forces, service living environment, harmony

In this article methods and tools for simulation of systems of remote sounding of the Earth's surface from space in the optical range of the radiation spectrum to optimize its structure and functional properties. The structure of complex information-measuring system of remote sensing to explore the experimental field through very difficult and very expensive in connection with the combination of various physical and technological processes occurring in it. The exit lies in the total use of natural and mathematical modeling with the use of modern IT-technologies, as the establishment phase and during the operational phase, with the aim of improving methods and design tools, as well as better control of equipment settings for advanced space systems (the free spectral range of physical intensity, linear resolution of the terrain and the performance of the system itself).

Keywords: remote sensing of the Earth's surface, space system, the system receiving and converting the information lens, an optical reception system, the underlying surface of the Earth, remote sensing, linear ground resolution

The article presents the vibration diagnostics method for pilons of transmission lines. Pilons has defects: inclined cracked faces with a length of 25-30 cm , with a crack width of 0,4-0,7 mm . The article presents an example of analytical modeling of natural vibrations of a reinforced concrete pilons of transmission lines with defects in the base. Analytical modeling was based on the hypotheses of Euler-Bernoulli. Built an equivalent model of the pilons with defect in the form of an elastic element, simulating the damage in the area of trapping. The calculation of natural frequencies of first five modes of transverse oscillations for different values of stiffness of the defect. The result of this work is to obtain the dependencies of the relative frequencies from the stiffness of the defect and establishment of sufficiently informative criterion for predicting the alarm state of structures. The material presented can be used in the development of methods of diagnostics and monitoring of technical condition of different structures of the core type.

Keywords: vibration analysis, pilons of transmission lines, the defect, analytic modeling, transverse vibrations, natural vibrations, natural frequencies

Currently, special attention is paid to the existing ecosystem of urban development, special attention deserve wherein resort towns. There is a number of environmental concerns of the KMW region attractive for its natural-resource data, one of which is the noise pollution of the urban environment. The main source of this pollution for the city with the nonproductive functional orientation is transport infrastructure. Formation of cities in the region, which began in the XIX century, did not provide for traffic congestion and power sources of the modern city, so today it is necessary to analyze the noise loads and, if necessary, to organize the work to restore an enabling environment resort towns of the KMW region.

Keywords: Caucasian Mineral Waters, noise, noise impact, sanitary and hygiene regulation, the intensity of the noise, characteristics of the noise

The article presents suggestions for the design of three-layer floor slabs: two extreme layers made from ordinary concretes and one middle layer of lightweight. In the article method of determining the reduced cross section structures is given. It is shown that the most appropriate to use the ratio of secant modulus of deformation of concrete, also given appropriate calculation formulas.

Keywords: three-layer plate, outermost layer, middle layer, the reduced cross section, the secant modulus of deformation, the level of loading, the calculated dependence