The process has been investigated and technological parameters for spraying gradient plasma coatings on the basis of zirconium dioxide stabilized with ytterbium dioxide have been optimized in the paper.

The paper presents results of graphite surface morphology research and graphite structure improvement (density increase) in nano-coatings of iron alloy powders while making isothermal heating up to 1200 °С and plastic deformation caused by tensile stress due to significant difference in iron and graphite thermal expansion coefficients. Framework structure formation of squeezed graphite on iron-group metal particles makes it possible to obtain composite powders for preparation of erosion-resistant composite materials.

The paper reveals a pad welding effect on axial sizes of a crankshaft to be built-up and a dependence of axial deformation of built-up element on an elasticity modulus, a heating temperature and thermal coefficient of linear expansion of an element and a plating, weave bead sizes. This dependence enables to forecast tensile stresses in the plating. The paper contains justification on limitation of axial deformation of the built crank due to decrease of pad welding numbers up to only one during the whole period of its lifetime and carrying out  resource-saving measures.

A finite element modeling of recoverable traverse deformations of heavy milling planers with traveling bridges has been carried out in the paper. The paper reveals specific deformation modes – twisting, bending and cross-section crabbing. Various variants of internal traverse ribbing have been investigated in the paper. The paper shows a ribbing influence on some deformation modes and its efficiency with double walls. Recommendations on provision of base components’ rigidity with material economical expenditure is given in the paper.

Combined effects of a shock-wave pulse method and mechanotherapy on a spine is considered as an alternative to conservative and operative methods.

Methodology for spinal disease treatment while applying a shock-wave therapy is characterized by the following specific features. Firstly, it is necessary to limit a penetration depth of shock pulses in a biological object in order to exclude damage to a spinal cord. Secondly, it is necessary to limit an energy flux density:

I_max≤ 0,280 J∕m²

and  pressure in focus:

P_Fmax≤ 0,040 MPа,

in order to exclude traumatizing of spinal tissue and only stimulate blood  circulation and metabolic processes in them.

Where an acceptable value of the force acting on the inter-vertebral disc while a shock wave is passing is determined by the following formula:

 F max = P_FmaxS = P_Fmax πr₀² = 0,040 ∙10⁶ ∙3,14 ∙(8∙10^-3)² = 9 N,

 

where r₀ – a focal spot radius, mm.

Mechanotherapy is applied in combination with the shock-wave therapy and it presupposes the following: an outstretching force acts created in a longitudinal direction of the spine and it is directed across a vertebral column, whose value usually ranges from 50 to 500 N.

 

 

 

The paper provides a classification of treated holes and information on. existing methods for a hole treatment. A mechanism of contact interaction under influence of ultrasonic vibrations is described in the paper. The paper shows that treatment processes of deep holes having small diameter and curvilinear profiles are of practical and research interest

Development of cybernetics and its components have played an important role in solution of research operation problems, a mathematical substantiation of some management theory principles and creation of mathematical models (MM).  Simplification of MM-creation process, its idealization  often emasculate the essence and principles of the management. While taking into account an estimation of management efficiency parameters the paper proposes a methodology for measuring an absolute or its relative value and also a quantitative importance value of these parameters.

The paper presents technical solutions applied while developing a tower concrete-mixing plant. Separate typical details with indication of their main parameters are comprehensively described in the paper. The paper provides a sequence of concrete mixture component movement in the batching process, contains description of a recipient-oriented ready-made mixture feeding  to final consumers with the help of trolleys and a concrete waste recycling system.

The paper considers private methods for calculation of individual technological norms pertaining to expenditure of fuel and power resources in  respect of main types of construction and installation works and technological processes whish are executed with the help of various machines, mechanisms, technological equipment etc. Analytical expressions that take into account various factors influencing on the power consumption level are presented in the paper.

Crack formation is presently considered as an actual problem in the global practice. The paper provides various approaches pertaining to improvement of asphalt-concrete composition with the purpose to prevent formation of temperature and fatigue cracks and develop design and technology measures for avoidance of reflection cracking in asphalt-concrete strengthening layers. However there is no comprehensive solution of the problem that combines a material science and affirmative approaches. Existing technology for crack sealing in roadway covering is rather efficient at the stage of its operation and makes it possible to eliminate cracks  depending on their nature and opening width but there is no efficient diagnostic and control system for preventing cracks with opening width up to1 mmwith the purpose to exclude their further development.

The paper considers new methods for  honing and functional testing of machine hydraulic drives: a method for evaluation of friction surface running-in ability and a functional test method for an unsteady temperature regime. Possibilities of their experimental realization are described in the paper

In accordance with the national program of the Republic of Belarus up to 2015 it is scheduled to put into operation a number of power sources working on chip fuel with a total capacity up to 1025.7 MW. Nowadays operational efficiency of energy sources is reduced due to high cost of production and transportation of wood fuel. It is necessary significantly to improve the applied technology and select efficient technical means for its implementation. The paper analyzes a storage technology of  fuel wooden and wood waste chip with due account of their technical and economic parameters. Proposals on improvement of the existing chip fuel technology  are given in the paper.

Deformation strips have been experimentally revealed and described while stretching of cylindrical samples by means of computer thermography. It has been established that temperature of shift strip surface grows smoothly up to the stage of crack origin in material defect. Sharp growth of surface temperature occurs when tensile stresses reach tensile strength. Change in surface temperature occurs wavy after destruction (while cooling the sample). Processes of material destruction origin and development  characterize temperature changes in deformation strips.

The paper considers a mathematical model of local «driver-seat» system and an algorithm for vibratory loading formation at external actions. Results of the investigations on the system vibration according to minimum vibration acceleration depending on transfer force factor acting on the seat and a vibration isolation factor are presented in the paper.

The paper proposes a new definition for a venture business subject on the basis of the analysis of Belarusian legislation for innovation-based economic development inBelarus. The new definition will give a new impetus to the venture business development by relevant application of privileges and preferences and attraction of investments in the Belarusian economy.

 

The paper shows that a calculation step being function of the industrial program can not be applied for making calculations of organizational and technical parameters of assembly lines.

It is proposed to apply a standard working cycle as a main (initial) mass production standard  and a function of labor standard. The paper presents a new algorithm for calculation of main organizational and technical parameters of one-subject assembly lines.

The paper describes investigations on development of methodology for optimization production stocks  in accordance with minimum losses caused by fluctuation in business environment.

An optimization model of industrial enterprise production stocks is presented in the paper. At the first stage it is necessary to solve a task that reveals and systematizes an aggregate of factors which can influence on the required stock level and result in either deficit or excess of products. At the second stage  it  is necessary to solve a task that estimates a character and degree of factors’ impact on the production stock level. The paper contains an analysis of possible situations causing deficit or surplus formation of products and quantitative estimation of possible stock deficit or surplus size.

The third stage is an optimization of the production stock level and it presupposes to minimize a mathematical expectation of losses caused by casual factors’ impact. Stock level is considered as optimum one when the mathematical expectation of losses reaches a minimum value. The fourth stage is a detection of «bottlenecks» and their complete or partial removal will make it possible to reduce the size of the required necessary production stocks. At the fifth stage it is necessary to solve a task that is to develop organizational measures and their implementation will allow to reduce the required production stocks.

Development of the methodology for optimization of production stocks will permit to reduce the size of circulating assets advanced for formation of an enterprise stock.

A noosphere conception reflects actual problems of a technocratic society in the current context. A new interpretation of social justice has an important significance in the ecological heritage of V. I. Vernadsky. Application of the noosphere theory, revelation of innovational justice aspects with the help of the theory permit successfully to solve techno-genesis problems aggravated at the beginning of the third millennium.

A traditional approach to organization of group-training method leads to rather sharp contra-dictions of «discreteness», «assortment» and «asynchronicity». A disciplinary-block training principle overcomes the indicated contradictions owing to breaking-up a term and a term disciplinary set in blocks, consecutive study of every block and distribution of examinations in «butt joints» between the blocks. The paper shows that the principle significantly improves important properties of education systems and harmonizes them with fundamental factors of trainees’ memory.