№ 74(10), December, 2011
Public date: 30.12.2011
Archive of journal: Articles count 76, 142 kb
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01.00.00 Physical-mathematical sciences
DescriptionForecasting method of flow discharge on the reach of the mountain-flat river channel based on water balance equation and stochastic forecasting model of flood situation in a hydrometric section line of river canal is described. The results of test calculations executed for a reaches of the river Kuban are presented
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ANALYSIS OF METHODS OF GENERATION OF TIME SERIES WITH LONG-TERM CORRELATION STRUCTURE
01.00.00 Physical-mathematical sciences
DescriptionThis article gives a comparative analysis of six modeling techniques of fractal differential noise, including: direct definition method, the method of Hosking, the method of Davis and Hart's, the circulant embedding method, Paxson method and method of spectral simulation. Furthermore, the algorithms are given for the analysis and the method of estimation of Hurst`s parameter is selected, this method is the main criterion of quality when comparing the above mentioned methods of fractal differential noise
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Description
Methods of jet pneumatic automatics as applied (Pneumatic automation) to systems of transportation on an air pillow are considered. Use of methods pneumatic automation is shown at designing the flowing channels providing jet management on the basis of aero hydrodynamic effects. On the basis of hydro dynamical calculation parities for definition in engineering calculations of critical values of characteristics of flowing elements of the pneumoconveyor are determined. Time of transient of system of switching of air streams is determined
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MATHEMATICAL MODEL OF MANAGEMENT OF SCRAP PROCESS OF CRONES OF TREES BY MANIPULATOR WITH A DISK SAW
DescriptionIn this article, the mathematical model of management of interaction of working body of the cutter with branches of trees is submitted. Optimization of design data of the machine for scrap of trees is executed
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ANALYSIS OF PROCESS OF DESTRUCTION OF ROCKS WITH A CHISEL АT DRILLING OF BORE HOLES
DescriptionТhe physical processes, arising on a face at interaction of a chisel with rocks are considered. The mathemati-cal description of model of mechanical speed of drill-ing in a function from speed of rotation, twisting mo-ment, diameter of a chisel and properties of destroyed rocks is executed
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MATHEMATICAL MODEL OF VIBRATION CONTROL PROCESS OF UNDERCUTTING ROOTS OF SEEDLINGS OF FOREST CROPS
DescriptionThe article presents a mathematical model of the interaction of vibration control the working body of the roots carver with soil and plant roots to optimize the design parameters roots carver
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PHYSICAL AND MECHANICAL PROPERTIES OF NANOMODIFIED "POOR" CONCRETE ROAD CLOTHING BASE CREATION
DescriptionThe experimental data of the study of physical and mechanical properties of nanomodified "poor" concrete for road clothing base creation is presented in this article
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Description
Science-based possibility of use of the concentrate, based on lactoserum, aimed to adapt protein and carbohydrate components in meat technology is shown
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Description
The features of landslide soil interaction with piles of single-row retaining constructions, taking into account the influence of anchor piles are considered
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INFLUENCE OF FERMENT WAY -POLYSACCHARIDE FRACTION (WPF) ON FI-BERS OF A FLOUR IN DOUGH
DescriptionIn the article, the use of ferment way-polysaccharide fraction (WPF) in manufacture of bakeries as a com-ponent, which possesses high medical and biologic characteristics, is described; but it also influences a “force of flour” and a quality of protein of a flour