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N. M. Tretyakov
N. M. Tretyakov

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Articles

Article
  • Date submitted
    1985-08-30
  • Date accepted
    1985-10-25

Sensor of speed of a mining harvester

Article preview

The sensor is designed for continuous measurement with increased accuracy and subsequent registration of small linear velocities and accelerations of the combine harvester movements. The device is built into the housing of a typical sensor UPDS.

How to cite: Tretyakov N.M., Gabov V.V., Tretyakov B.N. Sensor of speed of a mining harvester // Journal of Mining Institute. 1986. Vol. 108. p. 63-64.
Article
  • Date submitted
    1984-10-10
  • Date accepted
    1984-12-15

Mathematical model of heat and mass transfer dynamics in the collector of a cluster of mine degassing wells as a control object

Article preview

Collector - the main functional unit of a cluster of degassing wells - belongs to the category of control objects, in which the energy process is carried out in the form of heat and mass transfer. Structurally, the collector is made in the form of a section of the gas pipeline, in which the mixing of gas flows coming through the well trunklines takes place.

How to cite: Tretyakov N.M., Grishin V.V. Mathematical model of heat and mass transfer dynamics in the collector of a cluster of mine degassing wells as a control object // Journal of Mining Institute. 1985. Vol. 106. p. 71-75.
Article
  • Date submitted
    1977-10-02
  • Date accepted
    1977-12-09

Mathematical model of heat exchange in multi-pipe systems of heat and water supply of coal mines

Article preview

In the regions of the Far North the surface method of pipeline laying is becoming more and more widespread, which has a number of advantages in comparison with pipe-laying in perennially frozen soils. To protect pipelines from freezing, cold water pipelines are laid in common insulation with one or more pipelines that transport hot water ...

How to cite: Tretyakov N.M., Tretyakova N.M., Stepanov A.S. Mathematical model of heat exchange in multi-pipe systems of heat and water supply of coal mines // Journal of Mining Institute. 1978. Vol. 77. p. 57-63.
Article
  • Date submitted
    1977-10-25
  • Date accepted
    1977-12-13

Statistical characteristics of the Vorkuta region atmospheric air temperature fluctuations as the main perturbation of the system of automatic control of thermal objects of mines

Article preview

Calculation and adjustment of regulators, as well as the choice of optimal modes of operation of thermal engineering objects (mine calorifiers, boilers, boiler rooms, boiler houses, heat and water supply systems of mines, settlements and cities) are determined by the value of the atmospheric air temperature ...

How to cite: Tretyakov N.M., Tretyakova N.M., Stepanov A.S. Statistical characteristics of the Vorkuta region atmospheric air temperature fluctuations as the main perturbation of the system of automatic control of thermal objects of mines // Journal of Mining Institute. 1978. Vol. 77. p. 123-127.
Article
  • Date submitted
    1974-07-21
  • Date accepted
    1974-09-13

Statistical research of the main disturbing influence on the calorifiers of the mines of the Vorkutaugol Combine

Article preview

The main disturbing influence on mine calorifiers and other heat objects (boilers, boiler rooms, water pipes, etc.) in the systems of automatic temperature control is the value of the increment of the outside air temperature for some constant interval of observation. ...

How to cite: Tretyakov N.M., Modestov Y.A. Statistical research of the main disturbing influence on the calorifiers of the mines of the Vorkutaugol Combine // Journal of Mining Institute. 1975. Vol. 68. Iss. 1. p. 61-67.
Article
  • Date submitted
    1971-07-15
  • Date accepted
    1971-09-04

Method of relay regulation of inertial objects

Article preview

To control inertial objects two- and three-position methods of regulation are widely used, but the quality of regulation in this case remains low.

How to cite: Tretyakov N.M. Method of relay regulation of inertial objects // Journal of Mining Institute. 1972. Vol. 62. Iss. 1. p. 42-45.
Article
  • Date submitted
    1971-07-08
  • Date accepted
    1971-09-05

Method of differentiation of slowly changing signals

Article preview

Let there is a non-random signal (or a specific realization of a random signal) y = y(t).Suppose this function is differentiable...

How to cite: Tretyakov N.M. Method of differentiation of slowly changing signals // Journal of Mining Institute. 1972. Vol. 62. Iss. 1. p. 54-56.
Article
  • Date submitted
    1967-07-18
  • Date accepted
    1967-09-21

Application of algebra of events and states to synthesis of mine automation schemes

Article preview

For synthesis and analysis of the structure of multi-cycle circuits, the algebra of events and states, or generalized Boolean algebra including time, is of considerable interest. Let us synthesize with its help the control scheme of branched conveyor lines. The conditions, which the synthesized circuit must satisfy, are determined from the analysis of serially produced circuits.

How to cite: Tretyakov N.M. Application of algebra of events and states to synthesis of mine automation schemes // Journal of Mining Institute. 1968. Vol. 56. Iss. 1. p. 72-76.