05.00.00 Technical science
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EXPERIMENTAL RESEARCHES OF THE AEROHYDRAULIC WATER LIFT
DescriptionIn the article, we have presented the experimental researches of the aerohydraulic water lift. The influence of the pressure on the aerohydraulic water lift and water giving height on productivity has been researched as well as we have made a multifactorial research of productivity of aerohydraulic water lift. It has been established that productivity of the aerohydraulic water lift depends on the difference between pressure and water giving height. Influences of diameters of submitting and nutritious pipelines on productivity have been established
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EXPERIMENTAL STUDY OF PROCESSES IN HYDRAULIC DRIVE SYSTEM OF FOREST MANIPULATORS
DescriptionDescription of hydro kinematic scheme of forest manipulator with additional damper connection is given in the article. Optimal damper parameters for manipulator dynamic loading decrease are defined on the basis of operation mathematical model solution
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EXPERIMENTAL STUDIES OF CIRCULAR EJECTOR PUMP
DescriptionIn the article, the materials of experimental studies of a circular ejector pump are presented. The purpose and tasks of the studies, experimental plant (test unit), methods of research and the results received are described
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AN EXPERIMENTAL RESEARCH OF THE SMALL BIOREACTOR WITH THE BUBBLE MIXING SYSTEM AND CATALYTIC HEATING
DescriptionThe article reviews the results of an experimental research of a small bioreactor with bubble mixing system and catalytic heating. The methods improving the efficiency of biogas plants are considered there
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Description
Getting the maximum number of day-old chicks largely depends on the disinfection of hatching eggs. Disinfection of eggs is important in the complex of veterinary-sanitation activities carried out in poultry farms for the prevention and elimination of infectious disease in birds. The perspective of using ozone in the poultry industry is possible due to its advantages characterized in comparison with other chemicals. It was found that ozone has the special ability to retard the growth of fungi in the biological substrates, also slows the appearance of mold on the surface of the eggshell even at 90 % relative humidity. When making parameters and modes of electro-ozonation process of egg store poultry farms there were carried out experimental studies. After ozone disinfection of hatching eggs, total bacterial contamination of shell eggs decreased by 99.89 %. The relative error of the experimental values of the theoretical amount was 7 %. As a result of production tests we set quality parameters developed by the process of electroozonation egg store poultry farms: regulation time is 8 minutes, dynamic error is 0.9, overshoot rate is 4.5%, generalized integral RMS figure is 10.6 % . The findings suggest that there is a qualitative regulation of the distribution of ozone in the egg store
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EXPERIMENTAL RESEARCH EFFORTS TO UPROOTING TREES AND BUSHES PLANTED
DescriptionThe article presents the methodology and the results of experimental studies to determine actual values of effort arising from uprooting trees and shrubs plan-tations in the Republic of Mari El. On the basis of experiments and regression analysis we have established the coefficients of the approximation-defining relation between the force and the diameter of the stem of tearing depending on the type of crops
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EXPERIMENTAL STUDY OF NOISE AND VIBRATION OF THE BAND SAW FRAME SAWS AND WOODWORKING MACHINES
DescriptionThe article presents the results of experimental studies of band noise generation and multirip woodworking machines. The studies have shown that saw woodworking group, as well as metal, are general patterns in the formation of the spectral composition that allows to approach the development of practical recommendations to reduce sound pressure levels in the work area to the operators of sanitary norms. Of particular note is the fact that elevated levels of noise generated by the cutting tool. The effect of changes in process parameters, in particular, the depth of cut and feed to levels of noise generated by the tool. For example, increasing the depth of cut in half leads to an increase of sound pressure levels at 5.8 dB (theoretically obtained value is 6 dB), and supplying a halving of the sound pressure levels reduces by 5 dB. High enough for engineering purposes convergence of theoretical and experimental sound pressure levels and the fact that the calculated values above experimental, allows the calculation and design of the system to reduce the noise under consideration in the machine is, only in service but also in their design
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EXPERIMENTAL RESEARCHES OF NOISE AND VIBRATION IN BAND-SAW MACHINE TOOLS
DescriptionIn the article, the process of noise formation in a band-saw machine tool is described and the way of clearing of noise and vibration which productivity is confirmed with the experiments is offered
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EXPLOITATION OF LIFE SUPPORT SYSTEMS IN POPULATED PLACES
DescriptionThis article describes aspects of control, regulation, functioning and degree of influence on the condition of life-support systems, on the safety of life support, on the safety vital functions of society. The impact of life-support systems on the ecological status of builtup areas. The article refers to an increase in emissions and the dangers of СО2 и SО2, about methods to reduce them. It presents the dangers of hydrogen compounds, nitrogen, chlorine, freon. We have also presented measures to protect the environment in urban areas
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EXPRESS METHOD OF EVALUATING OF OLEIN ACID MASS PART IN SUNFLOWER-SEED OIL
DescriptionThe article gives the results of elaboration of the express method to define olein acid mass part in high olein sunflower-seed oil