The paper presents experimental research results and their analysis in respect of flat reinforced concrete slabs resting on point supports or soil in case of concentrated punching force. However the conducted researches have shown a number of incompatibilities accepted in computational model standards that appear in the form of critical parameters in the punching zone and configuration of computational (critical) sections in comparison with an actual pattern of slab crack formation and their collapse in the places of concentrated force application. Moreover, the computational methods do not take into account at all an influence of longitudinal reinforcement on both principal axis of the building frame or take it into account this phenomenon by empirical dependence indirectly. In view of the above-mentioned facts an accumulation of new experimental data is considered as an expedient process with the purpose to identify a physical pattern of flat reinforced concrete slabs operation under concentrated punching force. The paper makes it possible to revise a calculative methodology and, preserving a high reliability, it also permits to improve efficiency of a floor construction of the whole framework. It has been determined that longitudinal reinforcement of reinforced concrete slabs is actively involved in their work under concentrated punching force and exerts a prominent influence on their resistance to punching force. The paper presents a possible approach pertaining to evaluation of a longitudinal reinforcement influence on resistance of reinforced concrete slabs to punching force with due account of regulations of the appropriate standardized documents. 

The paper presents an experience concerning application of a combined technology for restoration of water-well discharge. The technology includes consists of a step-by-step filter treatment by hydrogen explosions, a reagent and low-frequency waves.

A diagram of the developed equipment for reagent treatment and efficiency pertaining to execution of works at water-wells are given in the paper.

The paper investigates an influence of current strength and voltage on the height of a depositing bead and depth of main material penetration in case of surfacing in carbon dioxide medium. Dependence of a depositing bead height and depth of main material penetration has been determined in respect of various surfacing modes. On the basis of the analysis of the formed structures being surfaced with powder additive it has been shown that introduction of metal powders in the tail part of melted metal favours formation of qualitative fine grain structure that improves physical and mechanical characteristics of a melted metal. 

The paper considers peculiar features of the underground water deironing process. A new highly-efficient design of a gaseous-liquid ejector has been developed. 

The paper proposes an experimental determination of an influence of a clearance value on the intensity of heat transfer of the heat exchanger ribbed surface of the heat exchangers that allows to determine a value of heat transfer decrease caused by a deviation of rib height from the calculated value. It has been shown that occurrence of a clearance between rib points in the core of a heat exchanger assembled with the help of flat pipes with cut ribbing leads to significant decrease in heat transfer efficiency.

Optimization of saturating mixture compositions has been carried out in two three-component systems, namely: Cr-Ti-V and Cr-Ti-Mn in respect of micro-hardness and wear resistance of carbide coatings obtained by thermo-chemical treatment of high carbon steel. «Composition - properties» diagrams have been plotted using mathematical models. Treatment with optimum compositions of powder media permits to increase wear resistance of steel by factor of 30-70 as compared with untreated steel. 

The main calculation methods for heat- and mass transfer in porous heterogeneous medium have been considered. The paper gives an evaluation of the possibility to apply them for calculation of metal chip heating process. It has been shown that a description of transfer processes in a chip has its own specific character that is attributed to difference between thermal and physical properties of chip material and lubricant-coolant components on chip surfaces. It has been determined that the known expressions for effective heat transfer coefficients can be used as basic ones while approaching mutually penetrating continuums. A mathematical description of heat- and mass transfer in chip medium can be considered as a basis of mathematical modeling, numerical solution and parameter optimization of the mentioned processes.

The paper considers methods for earthquake investigation in Belarus and explains reasons of their possible occurrence. A map of modem vertical motions of Earth’s crust has been analyzed due to construction and operation of very important objects in the Republic of Belarus. Using the results of the analysis corresponding conclusions have been made in the paper. 

A cooling system for powerful semi-conductor device (power -1 kW) consisting of a pin-type radiator and a body is considered in the paper. Cooling is carried out by forced convection of a coolant. Calculated values of temperatures on the radiator surface and experimentally measured values of temperatures in the same surface points have been compared in the paper. It has been shown that the difference between calculated and experimentally measured temperatures does not exceed 0,1-0,2 °C and it is comparable with experimental error value. The given results confirm correctness of a computer model.

The paper contains results of experimental investigations in respect of denture removal processes using as models so natural teeth as well and this removal process presupposes destruction of fixing cement by ultrasound action. It has been established that the best conditions for separation of a denture from a tooth body are ensured while ultrasound is acting on non-removable denture structure in liquid phase (water). At the expense of sound-capillary effect water fills in porous structure of fixing cement at high speed and a cavitation that appears in it leads to intensive cement destruction (dispersion).

Following the concept of defect-free manufacturing of master masks of IC on photo-masks, two Belarusian sets of optomechanical equipment for 0,3 5 p and 90 nanometers are presented in the paper. Each of the sets comprises:  
• Multi-channel laser pattern generator;
• Automatic mask defect inspection system;
• Laser-based mask defect repair system.

The paper contains description of automatic mask defect inspection process during photo-mask manufacturing and respective basic technological operations of the processes.

Advantages of a complex approach to the development of a set of opto-mechanical equipment for defect-free manufacturing of photo-masks have been analyzed in the paper. 

A model for diesel operational process has been developed and this model takes into account composition and physical and chemical properties of mixed fuels. Operational processes of 4ЧН 11/12.5 have been analyzed and this analysis makes it possible to evaluate influence of physical and chemical properties of bio-fuels on combustion process, ecological and economic indices of their operation. 

A new technique for on-board diagnosing wear level of friction linings of clutch driven plate has been developed. The main principle of this technique is a physical process using slipping work as an integrated parameter. 

Provision of safety traffic on the highways in Poland is ensured by using signs of changing information, point light-reflecting elements and various means of regulation and control of motion speed. In addition to technical means some organizational measures are also realized in the country and they are executed under control of the State Council of Safety Traffic. The paper contains statistics about accidents for the period of2004-2006. 

Measurements of a tangent component of magnetic field for electromagnetic semi-wave that has passed through aluminium plate with 4,2 ∙ 10^–6 rise time from a linear source have been carried out in the paper.

The paper contains values of maximum tangent component of magnetic field of secondary source after completion of initial field impulse action with various plate width. It has been shown that these dependences can be presented as exponential functions. 

Necessity to change structure of National product with the purpose to ensure sustainable economic growth requires efficient attraction of investments. The Governmental policy covers branches of not only material production but educational sphere as well. Educational service being considered as goods requires adequate changes of a higher educational institution and its transformation into an enterprise rendering educational services with the necessity to decrease functional expenses that will make it possible to reach competitive advantage. Actions directed on making national system of higher education closer to the European one contribute to higher competitiveness and an increase in import of educational services. 

Property in production goods in economics is characterized from various ideological and cognitive points. The paper considers categories of materialist dialectics, analysis and synthesis, internal contradiction, conflict of opposites, ascent principles from abstract to concrete, historical and logical principles as the most important forms of thinking in cognition of processes concerning origin, formation and developed state of property in production goods.