The results of research of influence of mechanical activation of filler (river sand) on physical, mechanical and structural properties of fine-grained concrete are presented in the article. The prospects
of using mechanical activation technologies for production of concrete with the improved complex of technical characteristics are established
The article is dedicated to the determination of
conditions for solid bodies’ fragmentation, providing
minimal size of particles by means of their mechanical
dispersion through the example of powders of titanium
carbide (TiC), cubic boron nitride – borazon (CBN)
and boron carbide (B4C). The theoretical and practical
aspects of the process of mechanical fragmentation of
particles of solid powder materials in ball mill for their
further utilization in furnace charge for high-speed
gas-flame sputtering of wear-resistant composite
materials are examined in the article. Methods of
preliminary calculation of minimum allowable size of
solid particles of powder materials during mechanical
fragmentation, based upon Griffiths’ mechanical
theory of rapture using experimental data for hardness
of material and its yield are proposed and theoretically
substantiated. There we have the results of
experiments on mechanical fragmentation of titanium
carbide in attritor, boron carbide and cubic boron
nitride in centrifugal planetary mill, confirming
correctness of theoretical propositions and calculations
are set out. Recommendations on mechanical
fragmentation of solid powder materials in ball mills
are formulated as well
We discuss the question of the essence of formation and propagation of waves in the electromagnetic environment. We have questioned the reliability of its description by J. Maxwell in the form of alternating electric and magnetic fields. The article justifies the formation of an electromagnetic wave in the form of a wave compression-decompression surrounding electromagnetic photon field flux of photons of different frequencies emitted by different sources or antenna
Increasing the yield of crops is a global challenge posed by the scientists from all over the world. To achieve this goal, we use various methods such as: engineering, agro-technical, agronomic, chemical, physico-chemical and so on. We conducted a theoretical study, which showed that the use of physical and chemical methods of treating seed before sowing has a positive effect on the growth processes of seeds. One of such methods is an ozone treatment, which has established itself as a quality growth stimulator of agricultural plants. But despite numerous studies there is no clear description of the mechanism of ozone effects on seeds. In this article, based on our theoretical study, we have presented a material that allows revealing the positive effects of ozone exposure to the seed. To confirm these theoretical results, we have decided to conduct a pilot study. In connection with what, in this article we have included the materials containing information on laboratory equipment and methods of the experiment. We have also presented measuring equipment and methods of iodine-metric method for determining the concentration of ozone in the ozone-air mixture, exact conformance with calibration gas analyzer which will allow to obtain reliable data on the dose effects of ozone on the grain
Mechanism of effective organization of inter branch productive - economic interaction of participants in harvesting – laying-in campaign in context of harvest-laying-in yield of cereal crops and sugar beet management on the territory of raw- good zone of laying-in enterprise is considered. Method and model of infrastructure organization of management system of harvesting – laying-in campaign on district and regional levels in format of raw-good zones of elevator complexes and sugar plants are described.
Organization mechanism of effective inter branch production-economical interaction of participants in harvesting-laying-in campaigns in the context
of grains and sugar beets harvesting-laying-in
management on the territory of commodity-
raw material zone of laying-in enterprise
is considered. Method and model of infrastructure organization of management system of harvesting-laying-in campaign on district/regional levels in the format of commodity-raw material zones
of elevator complexes and sugar plants are described.
The article considers the mechanisms of growth, transformation of human and intellectual potentials in the corporation capitals, and also the mechanisms of fixing of their carriers in a corporation for the purpose of ensuring growth of competitive force of corporation of knowledge economy; in particular, we have investigated basic mechanisms of interaction of owners of human and intellectual capitals with a
vertical of the economic power of corporation and the
mechanism of an intellectual rent, and also the relation
between assets when they are connected, i.e. incorporated in an integrative configuration and become steady structure of the capitals (capital graph) of corporation
Undeniable development factor of modern society is recognition of man as the main factor of socio-economic development. However, this axiom is un-founded so far, as it has not yet been clarified relevant categorical apparatus and mechanisms for its imple-mentation and supporting tools are not developed. The aim of this article is description of approaches to solving these issues
The article has a research character which is expressed through the analysis of ways and means of mechanization for harvesting of cucumbers, and also through the works of scientists on the studied subject. Vegetable growing is an important branch of agricultural production. Among a set of vegetable plants the increasing significance is attached to cultures production of which contains physiologically active agents. Solanaceous vegetables belong to these cultures. In Russia, vegetables on an industrial basis are cultivated in the south of the country. Everywhere in Russia crops of vegetables are reduced. It is explained by high costs of production, especially on harvest that at the general deficiency of manual skills leads to reduction of the areas, violation of technology of cultivation and harvest and, respectively, to decrease in productivity. In the conditions of import substitution of foreign agricultural production and increase in the areas of landing of vegetable cultures in the Russian Federation for creation of a safety cushion of food in the conditions of food embargo, undoubtedly, there will be required the maximum mechanization of technological process of harvesting of vegetables. The article presents the most important results of new types of designs of machines for harvesting of vegetables and cucumbers in particular, as well as problems of use of modern machines for cleaning cucumbers and vegetable cultures
The article has a research character which is expressed through the analysis of ways and means of mechanization for harvesting of solanaceous vegetables, and also endurance from works of scientists on the studied subject. Vegetable growing is an important branch of agricultural production. From a set of vegetable plants the increasing significance is attached to cultures which production contains physiologically active agents. Solanaceous vegetables belong to these cultures. In Russia, vegetables on an industrial basis are cultivated in the south of the country. Everywhere in Russia crops of vegetables are reduced. It is explained by high costs of production, especially on harvesting that at the general deficiency of manual skills leads to reduction of the areas, violation of technology of cultivation and harvesting and, respectively, to decrease in productivity. In conditions import substitution of foreign agricultural production and increase in the areas of landing of vegetable cultures in the Russian Federation for creation of a safety cushion food in the conditions of food embargo, undoubtedly, will be required the maximum mechanization of technological process of cleaning of vegetables. The most important results of types of designs of machines for vegetables and, problems of use of modern machines for cleaning of vegetable cultures are given. Our own design for harvesting solanaceous vegetables is offered