The study of flight machine functions, modes dependencies and mathematical modeling of onboard control systems data flows

This work is devoted to mathematical determination of the amount of data required to implement the functions of an automatic unmanned aircraft. A comparison of the characteristics of the investigated practical implementation of the aircraft with the declared functions was carried out. We calculate the percentage of the volume of technological data exchange and the calculator's reserve for the realization of automatic control functions. The work has the practical nature of introducing a new methodology, the stages of aircraft design to reduce subsequent revisions.

Analysis of implementations of the Scarpi method for calculating high orders Hadamard matrices of symmetric structures

An analysis of three modifications of the Scarpi method is given in order to assess their applicability to calculating Hadamard matrices of high orders with structural symmetries. Descriptions of modifications are presented, the results of Hadamard matrix calculation are demonstrated, confirming the conclusion about the significance of the Balonin-Seberry modification. The computational experiment shows that there are no results refuting the existence of matrices symmetric structures calculated by the Balonin-Seberry modification.

The impact of ground repairs on the reliability of aircraft

This article considers the direct dependence of increasing the reliability of an aircraft on timely repair on the ground. Using the methods of mathematical statistics, the main parameters characterizing the reliability of aviation equipment are identified.

Agrobiological characteristics of foreign varieties of winter triticale in the conditions of the foothill zone of the North Caucasus

As objects of research in the collection nursery, 20 varieties of winter triticale of foreign selection of various breeding and ecological-geographical origin were studied. It follows from the studies carried out that the greatest value of the spike length was noted in the samples Hortenso – 9.9 cm, Pawo – 9.1 cm, Bedretto – 9.2 cm. The weight of grain from an ear of 2.5 g and above had the samples: Раwо, Hortenso, Вlenio. The best in terms of weight of 1000 grains was found to be Pawo – 53.0, Bedretto – 55.0 g and Hortenso – 55.8 g. As a result of the research, a promising foreign sample of winter triticale Hortenso was noted. It belongs to the durum-form variety, the ear is white, spinous, hairless, dense. The length of the spike is 9.9 cm. The grain is of medium size, well done, light red. The productivity potential of the variety is more than 11.5 t/ha. Resistant to frost. The mass of 1000 grains is 55.8 g. As a result of research, highly productive samples were isolated from the collection of winter triticale: Pawo, Triskell, Hortenso, Blenio, Bedretto.

Structure and problems of the analysis of transaction costs of participants of the Russian market of tourist services

The article deals with transaction costs in the Russian market of tourist services. The paper identifies the key problems of the Russian tourism market that lead to the costs of concluding contracts and productive ways to minimize them. At the end of the article, a corresponding conclusion is made, summing up our research.

Ensuring Energy Safety of the Biological Separation Shop

The article considers ways to solve the problem of ensuring the energy safety of separation workshops of biological industries using the example of the Armavir Biofabrika PKP. The existing power limit does not allow increasing output. At the same time, a sufficient level of electricity supply at the existing facilities of the biofabric will allow to double the output of finished products practically. You can solve this problem using additional or redundant power sources, as well as high-efficiency electrical equipment. One solution to the problem may be to use the developed synchronized axial two-way contactless wind-solar generator and separator for polydisperse liquid systems. The designed generator will transform wind and solar energy into AC electricity, while it can be synchronized with an external three-phase AC system. Separator uses inevitable heat loss of asynchronous motor to preheat separated product.