THE EQUATIONS OF PURPOSEFUL MOVEMENT OF THE SPORTSMAN IN CONDITIONS OF THE ELASTIC SUPPORT

Pokatilov A.E., Mogilev State University of Foodstuffs, Mogilev, the Republic of Belarus, E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

Zagrevsky V.I., Doctor of Education; Mogilev State A. Kuleshov University; Mogilev, the Republic of Belarus

Lavshuk D.A., Candidate of Education; Mogilev State A. Kuleshov University; Mogilev, the Republic of Belarus

The equations of movement of the sportsman in conditions of an elastic support on an example of performance of exercises in sports gymnastics are considered. Models of purposeful movement of the person, led are shown to the universal form independent of number of degrees of freedom of full system. It enables easily to use models in computer research of movement and carrying out of computing experiment. The analysis of the equations of movement of the sportsman in view of influence of a shell is executed for the big turn back on a crossbeam on the moments of the operating forces operating concerning joints.

Elastic support, movement, sportsman, big turn back

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EXPERIENCE OF WORKING OF MINE FIELDS DISTRICTS OF POTASH MINES WITH A LONGWALL TURN IN RUE "PA "BELARUSKALI"

Smychnik A.D., Doctor of Technical Sciences; “Belgorkhimprom”; Minsk, the Republic of Belarus

Prushak V.J., Doctor of Technical Sciences; Soligorsk Institute for Problems of Resource's Saving with Experienced Production; Soligorsk, the Republic of Belarus

Ischenko R.V., Soligorsk Institute for Problems of Resource's Saving with Experienced Production, Soligorsk, the Republic of Belarus

Dukuko S.N., “Belaruskali“,  Soligorsk, the Republic of Belarus

In the article the regularities of interaction of the modern mechanized complexes and the elastic deformed medium of districts of mine fields of potash mines of RUE "PA "Belaruskali" with the small sizes are shown. Offered new schemes of working with a turn of the mechanized complex on the boundary of a panel, preventing rock falls of a roof at driving of the end districts are examined. Possible ways of increase of productivity of the mining equipment are described.

Modern mechanized complexes, mining equipment, districts of mine fields

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STATIC MODEL OF THE MIDDLE EAR SUBJECTED TO RECONSTRUCTION BY USING THE “LARGE ISLAND” TYMPANOPLASTY TECHNOLOGY. PART II: STRAIN-STRESS STATE

Mikhasev G.I., Doctor of Physical and Mathematical Sciences; Belarusian State University, Minsk, the Republic of Belarus; E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

Ermochenko S.A., Vitebsk State University named after P.M. Masherov; Vitebsk, the Republic of Belarus

The mathematical and mechanical model of the reconstructed middle ear subjected to tympanoplasty by using the "large island" technique is constructed. The restored tympanic membrane (TM) is modeled as the system of two concentrically conjugate annular plates from which the internal plate is monolayer and made from the cartilaginous tissue and the external one consists of two layers - remnants of the ear-drum and transplant. The influence of dimension of the deleted or damaged area of the TM, the transplant thickness on the strain-stress state is studied.

Middle ear, mechanical model, tympanic membrane, transplant

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CAPACITY EXPENSES ON GRANULAR MATERIALS MIXING RESEARCH

Shulyak V.A., Doctor of Technical Sciences; Mogilev State University of Foodstuffs; Mogilev, the Republic of Belarus

Buhlak A.V., Mogilev State University of Foodstuffs; Mogilev, the Republic of Belarus

In given article materials of capacity expenses on granular materials mixture in periodic action drying device research are presented. Design procedures of mass characteristics (position of gravity centre) with use of three-dimensional models of device working chamber and various volumes of material loadings are resulted. Comparison of experimental data with theoretical researches results is made.

Capacity expenses, granular materials mixture, drying device, mass characteristics

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