Siberian State Technological University

www.sibstu.kts.ru
Syamzha, Russia

Siberian State Technological University is the oldest university in Krasnoyarsk, Russia. It was established in 1930 as the Siberian Institute of Forest . Later it was known as the Siberian Technical Institute of Forest , Siberian Technological Institute , Krasnoyarsk State Technological Academy and finally the Siberian State Technological University .Currently 15,000 students are studying in one of the nine faculties. Wikipedia.

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Pal'nikova E.N.,Siberian State Technological University | Sukhovol'skii V.G.,Russian Academy of Sciences
Contemporary Problems of Ecology | Year: 2016

A model that implies highly inertial regulation of phytophage numbers by entomophages has been applied for the analysis of phytophage–entomophage interactions during different phases of the gradation cycle of phyllophagous insects. The data on population dynamics and the degree of parasite infestation in pupae of the pine looper Bupalus piniarius L. and fir looper Ectropis (=Boarmia) bistortata Gz are used to verify the model. The results of field studies apparently are in good agreement with the model of highly inertial regulation in the “phytophage–entomophage” system. The model that is proposed explains the decisive roles of different factors (entomophages, predators, or diseases) in the population dynamics of phytophages under different conditions. © 2016, Pleiades Publishing, Ltd.


Nechaev M.A.,Siberian State Technological University
Journal of Siberian Federal University - Mathematics and Physics | Year: 2017

The shape of a figure of a system that is built on the principle of Halbach and that has a maximum field at own center is obtained. © Siberian Federal University. All rights reserved.


Stepanov R.S.,Siberian State Technological University | Kruglyakova L.A.,Siberian State Technological University
Russian Journal of General Chemistry | Year: 2017

Mechanism of autocatalytic action of picric acid during thermal decomposition of N,2,4,6-tetranitro-Nmethylaniline has been studied for the first time. The process occurs as nucleophilic substitution of N,2,4,6-tetranitroanilinium ion with picrate one to form N,2,4,6-tetranitroaniline and trinitroanisole. In contrast to the case of aromatic nitramines, thermal decomposition of secondary alkylnitramines is accompanied by acid-base catalysis. © 2017, Pleiades Publishing, Ltd.


Kovalev I.V.,Siberian State Aerospace University | Badanina J.O.,Siberian State Technological University
IOP Conference Series: Materials Science and Engineering | Year: 2016

Considered Design and the logic of opening large convertible antenna. The necessity of compensation weight component in the assembly and testing of the design. Given the logic of the movement elements of power spokes, concluded that the use of the tracking system to compensate for the weight component. The analysis of the existing equipment and control systems. Produced selection of the manufacturer of automated equipment that meets the stated objectives of management and control. It is concluded that the design component of the weight compensation system based on servo controllers and sensors combined platform automation, controlled by special software. The structure of the platform automation, consistent workflow testing. It defines the principles of interaction between subsystems of the weight compensation component for receiving, processing and monitoring of process parameters testing. It is concluded that the proposed system can be integrated into the automation system and the perspective of process control testing of disclosure of large spacecraft. © Published under licence by IOP Publishing Ltd.


Vinogradova I.S.,Siberian State Technological University | Falaleev O.V.,Russian Academy of Sciences
Russian Journal of Developmental Biology | Year: 2012

1H magnetic resonance microtomography imaging was applied to study vascular systems in developing bean (Phaseolus limensis L.) seeds. Using the gradient echo method, we recorded 2D tomographic sections in the sagittal and axial planes of the fruits sampled from a vegetating plant on days 10, 17, 24, and 31 after fertilization. Any vascular connection between the tissues of maternal plant (bean pod and seed coat) and the embryo were undetectable. The embryo has an autonomous branched network of procambial strands in the cotyledons, converging to the embryonic axis. The bean pods are covered with a network of vascular bundles; large vascular strands run along the dorsal and ventral sutures. The seed coat vascular bundles are formed in the process of seed ripening and are represented by a developed vascular system multiply branching in the middle part of the ground parenchyma at the stage of physiological maturity. They are connected with the source of assimilates via the lateral pod veins and a large vascular bundle, entering the seed below the hilum via the placenta. Assimilates enter the external part of the seed coat, which contains no vascular bundles, via the funiculus vascular bundles and hilum tissue. © 2012 Pleiades Publishing, Ltd.


Ivanova G.A.,Russian Academy of Sciences | Ivanov V.A.,Siberian State Technological University | Kukavskaya E.A.,Russian Academy of Sciences | Soja A.J.,NASA
Environmental Research Letters | Year: 2010

Forest fires resulting from long periods of drought cause extensive forest ecosystem destruction and can impact on the carbon balance and air quality and feed back to the climate system, regionally and globally. Past fire frequency is reconstructed for Tuvan Scots pine stands using dendrochronology and statistics. Central Tuvan Scots pine (Pinus sylvestris) stands are subject to annual fire regimes; however high intensity fires are rare but they are responsible for most of the damage. Low, medium, and high severity fires have shaped the multi-story Scots pine communities, locally and regionally. Fire type and frequency are directly related to weather and climate and are also dependent on anthropogenic influences. The primary dry period, which promotes fire ignition and spread, in Tuva occurs in April and May. In some years, the precipitation deficit combined with high air temperatures induces long periods of drought. Unlike the typical surface fire regime, forest fires that burn during these extreme droughts often become crown fires that result in substantial forest damage and carbon release. The mean fire interval (MFI) is found to be 10.4 years in Balgazyn stands, and the landscape-scale MFI is 22.4 years. High severity, stand-replacing crown fires have a longer MFI. The warmer and dryer weather that is predicted by global climate models is evident in Tuva, and we believe that these changes in weather and climate have resulted in increased fire intensity and severity, rather than fire frequency in the Tuvan region. © 2010 IOP Publishing Ltd.


Zhimbueva L.D.,Siberian State Technological University
Computer Optics | Year: 2011

The article describes the method for determining the total distortion of digital images. The algorithm for the solution of the problem is developed and consists of the following steps: (i) creating the ideal image of test object according to its real image, (ii) construction of the image distortion vector diagram, (iii) nonlinear regression analysis of the approximable functions, (iv) solution of the interpolation problem, object image correction and object plane contour reconstruction. The square grid is used as a test object. The mathematical model of the image distortion is built using the Nonlinear estimation package of the STATISTICA system. The reliability value of the investigated function approximation is 0.98-0.99 with cubic polynomial applied. The developed method makes it possible to improve the object plane contour reconstruction accuracy. The method may be used in COMPUTER VISION SYSTEMS in intellectual robot-technical systems, pattern recognition etc. © 2011, Institution of Russian Academy of Sciences. All rights reserved.


As a result of a phytopathological investigation into birch (Betula pendula) stands in the Krasnoyarsk group of areas (south of Middle Siberia), newly appearing and existing nidi of bacterial dropsy have been discovered. The influence of growth conditions on morbid affection in birch forests and the correlation between disease prevalence and characteristics of forest inventory have been established. The specificities of tree affection within phytocenoses and the influence of disease on the sanitary state of birch forests have been discussed. © 2014 Pleiades Publishing, Ltd.


Baranov A.M.,Siberian State Technological University
Gravitation and Cosmology | Year: 2012

An approach to construction of static models is demonstrated for a fluid ball. Five examples are considered. Two of them are exact solutions of the Einstein equations; the other three are connected with the Airy special functions, the hypergeometric functions and the Heun functions. © 2012 Pleiades Publishing, Ltd.


Nechaev A.I.,Siberian State Technological University
Russian Engineering Research | Year: 2014

The gear ratio of planetary mechanisms with two central gears and a double satellite is nonuniform. © 2014 Allerton Press, Inc.

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