The article presents the results of the researches of the
influence of a way of crushing on activity of
ingredients of concrete mix. It is shown that sand
crushing by method of free kick in a planetary mill of
AGO-2 allows not only to raise its specific surface, to
receive the demanded particle size distribution, but
also to improve quality of a surface of particles by
removal, destruction of superficial inactive films. On a
new surface of sand excess energy concentrates, the
active centers are formed and there is a fixing of germs
of new growths of products of hydration of cement in a
place of an exit of dislocations to surfaces of crystals
of sand that leads to substantial increase of chemical
activity and reactionary ability of sand
The phase transition for US(3) gauge field (without quarks) is considered. It is shown that the phase transition is due to the fact that at high temperatures the partition function should be calculated as for a gas of gluons, whereas at low temperatures as the sum over energy levels of correlated quantum states of SU(3) gauge field. A correlated quantum state for strongly interacting fields is defined as a nonperturbative quantum state of strongly interacting fields. The energy spectrum of these quantum states are discrete one. A lower bound of the phase transition temperature by comparing of the average energy for the perturbative and nonperturbative regimes is estimated (for glueball being in thermal equilibrium with the thermostat). It is shown that this quantity is associated with a mass gap. In a scalar model of glueball its energy is calculated. It is shown that this energy is the mass gap. If we set the glueball mass ~ 1.5•10³MeV then it is found that the corresponding value of coupling constant lies in the nonperturbative region
Human-induced disturbance on water objects was appraised with chemo and biological methods, the results of which are turned out to be comparable
The article submits a mathematical dynamic model of varying pressure of the steam, depending on fuel supplying in the boilers
In this article the questions of vertical integration which is necessary to bring the company of antler reindeer breeding out of crisis are considered. We have presented a scheme of participant of "supplier – consumer” integral interaction
The existing settlement modes of loading of wheels of cars are defined for the conditions which are closest to road service conditions and are reflected in the existing standards. However these standards can't be applied to an assessment of functional qualities of systems of cushioning the cars which are operated in the conditions of agricultural production. The small step of roughnesses, change the cushioned characteristics under the influence of operational factors lead to emergence of the off-design modes of the movement. The purpose of the work was the research of loading of wheels of the car when moving on mulch of grains. For the purpose of obtaining characteristics of the roughnesses influencing car wheels we have recorded a smoothed microprofile of the field and got the statistics, rated autocorrelated function, spectral density of influence of a microprofile. For carrying out the researches the known mathematical model of a car road system was accepted. Influence of speed of the movement, normal rigidity of springs and tires, coefficients of damping of a suspension bracket and tires on vertical fluctuations and loading of wheels of forward and back axes of the car is investigated. The executed researches showed that the movement of the car is followed by fluctuations of indicators of loading of running system with obviously expressed periodic components. The change of the coefficient of damping of a passive suspension bracket and tires in possible limits has no essential impact on loading of wheels. Values of normal roughness of springs of forward and back axes of the car, normal rigidity of tires at which dynamic load of wheels of the car is minimum are established
A mathematical model of the process of adhesive bonding of wood with glues, treated by an electric field, is suggested. The model allows determining the dependence of the strength of adhesive joints on tech-nological process parameters
The article is an example of a device that based on fuzzy logic, capable determine the health of the technological system on indirect physical parameters
The nuclear lexis of E.I. Nosov`s publicism is considered in the article. The author detected the part of speech criteria of the dominant lexis, analyzed in the diachronic aspect a group of high-frequency nouns that represent the name of a person in the journalistic work of the writer. The study aims to reveal to some
extent the originality of the individual linguistic model of the world of a great Russian writer and publicist E.I. Nosov
We have special demands to the planting of the tilled crops. Unlike grain crops, the tilled crops are sowed in a line with the certain step, which permits to provide the rational placing of the plants on the feeding areas. Due to this, the necessary conditions were made for their further growth and getting of big crops. For planting of the tilled crops all over the world people apply pneumatic precision drills with vacuum seed-sowing mechanisms and the quality of realization of the operation depends on their work greatly. The process of work of the vacuum seed-sowing mechanism can be divided on basic stage, the process of catching a single seed and carrying it out of the layer of the others with the drawing hole is the most responsible among them. The analyses of the work which has been done let conclude that the influence of the agitator on the layer of the seeds in the zone of their catching with the drawing holes increases the efficiency of this process. With an aim of the activation of the working process of the central agitator the authors offer to make its blades in such a way that their working sides would be turned in the direction of rotation of the agitator and the plane of the feed disk. All this let use the agitator not only for activation of the layer of seeds but for their push to the drawing holes of the feed disk. The proof of the offered construction is presented in the article, the results of the comparative experimental researches of the serial and the modernized vacuum seed-sowing mechanisms and the analyses of obtained data are shown, conclusions have been formulated