BADANIE FILTRU KOŁMOGOROWA-WIENERA DLA CIĄGŁYCH PROCESÓW FRAKTALNYCH W OPARCIU O WIELOMIANY CZEBYSZEWA PIERWSZEGO RODZAJU

This paper is devoted to the investigation of the Kolmogorov-Wiener filter weight function for continuous fractal processes with a power-law structure function. The corresponding weight function is sought as an approximate solution to the Wiener-Hopf integral equation. The truncated polynomial expansion method is used. The solution is obtained on the basis of the Chebyshev polynomials of the first kind. The results are compared with the results of the authors’ previous investigations devoted to the same problem where other polynomial sets were used. It is shown that different polynomial sets present almost the same behaviour of the solution convergence.Praca ta jest poświęcona badaniu wagi filtra Kołmogorowa-Wienera dla ciągłych procesów fraktalnych w oparciu o funkcję gęstości prawdopodobieństwa. Głównym zamierzeniem jest znalezienie odpowiedniej wagi będącej przybliżonym rozwiązaniem równania całkowego Wienera-Hopfa. W tym celu wykorzystano metodę rozwinięcia ograniczonego wielomianu. Rozwiązanie oparte jest na wielomianach Czebyszewa pierwszego rodzaju. Wyniki są porównywane z wcześniejszymi badaniami autora dotyczącymi tego samego problemu, w których to użyte zostały inne układy wielomianów. Udowodniono, że różne układy wielomianów zachowują się podobnie a ich rozwiązania są zbieżne

Possibilities of information technologies in the processes of designing efficient processes for the production of aircraft structures

The work presents the process of studying CAD- Systems and systems of technological automated design of elements of aviation structures in serial production of aviation equipment. It has been established that the most important goal of laying CAD systems is to create a single information space, which It involves the rejection of direct interaction and data transfer between all participants in the product life cycle, which is implemented in the system of automated design "Vertical"

Possibilities of information technologies in the processes of designing efficient processes for the production of aircraft structures

The work presents the process of studying CAD- Systems and systems of technological automated design of elements of aviation structures in serial production of aviation equipment. It has been established that the most important goal of laying CAD systems is to create a single information space, which It involves the rejection of direct interaction and data transfer between all participants in the product life cycle, which is implemented in the system of automated design "Vertical"

NDUSTRIAL TECHNOLOGICAL RESEARCH «DEVELOPMENT OF RUSSIAN MARKET OF NANOTECHNOLOGICAL PRODUCTS IN CONSTRUCTION UNTIL 2020». PART 1. A STATEMENT OF THE TASK AND AN APPROACH TO REALIZE THE PROJECT

Some results of the industrial research «Development of Russian market of nanotechnological products in construction until 2020» have been published. Authors invite all interested specialists and specialized organization to take part in the broad public discussion

INDUSTRIAL TECHNOLOGICAL RESEARCH «DEVELOPMENT OF RUSSIAN MARKET OF NANOTECHNOLOGICAL PRODUCTS IN CONSTRUCTION UNTIL 2020». PART 3. ANALYSIS OF THE RUSSIAN MARKET

The previous publications [1, 2] dealt with the analysis of the main indicators to the world market of nanotechnological construction materials. Today this market is estimated at 12 milliard of dollars, and its rapid growth is expected soon. The present paper analyses the Russian market

INDUSTRIAL TECHNOLOGICAL RESEARCH «DEVELOPMENT OF RUSSIAN MARKET OF NANOTECHNOLOGICAL PRODUCTS IN CONSTRUCTION UNTIL 2020». PART 2. ANALYSIS OF THE WORLD MARKET

Some results of the industrial research «Development of Russian market of nanotechnological products in construction until 2020» have been published. Authors invite all interested specialists and specialized organization to take part in the broad public discussion

Influence of Copper Oxide Nanoparticles on Gene Expression of Birch Clones In Vitro under Stress Caused by Phytopathogens

Recently, metal oxide nanoparticles (NPs) have attracted attention as promising components for the protection and stimulation of plant microclones in tissue culture in vitro. However, the effect of NPs on the genetic mechanisms underlying plant adaptive responses remains poorly understood. We studied the effect of column-shaped CuO NPs 50 nm in diameter and 70–100 nm in length at a concentration of 0.1–10 mg/L on the development of phytopathogenic fungi Alternaria alternata, Fusarium oxysporum, and Fusarium avenaceum in culture, as well as on the infection of downy birch micro-clones with phytopathogens and the level of genes expression associated with the formation of plant responses to stress induced by microorganisms. CuO NPs effectively suppressed the development of colonies of phytopathogenic fungi A. alternata and F. avenaceum (up to 68.42% inhibition at 10 mg/L CuO NPs) but not the development of a colony of F. oxysporum. Exposure to the NPs caused multidirectional responses at the level of plant genes transcription: 5 mg/L CuO NPs significantly increased the expression level of the LEA8 and MYB46 genes and decreased the expression of DREB2 and PAL. Infection with A. alternata significantly increased the level of MYB46, LEA8, PAL, PR-1, and PR-10 transcripts in birch micro-clones; however, upon exposure to a medium with NPs and simultaneous exposure to a phytopathogen, the expression of the MYB46, PR-1, and PR-10 genes decreased by 5.4 times, which is associated with a decrease in the pathogenic load caused by the effect of NPs and the simultaneous stimulation of clones in vitro. The results obtained can be used in the development of preparations based on copper oxide NPs for disinfection and stimulation of plant phytoimmunity during clonal micropropagation of tree crops

Relationship between Thermal Diffusivity and Mechanical Properties of Wood

This paper describes an experimental study of the relationships between thermal diffusivity and mechanical characteristics including Brinell hardness, microhardness, and Young’s modulus of common pine (Pinus sylvestris L.), pedunculate oak (Quercus robur L.), and small-leaf lime (Tilia cordata Mill.) wood. A dependence of Brinell hardness and thermal diffusivity tensor components upon humidity for common pine wood is found. The results of the measurement of Brinell hardness, microhardness, Young’s modulus, and main components of thermal diffusivity tensor for three perpendicular cuts are found to be correlated. It is shown that the mechanical properties correlate better with the ratio of longitude to transversal thermal diffusivity coefficients than with the respective individual absolute values. The mechanical characteristics with the highest correlation with the abovementioned ratio are found to be the ratio of Young’s moduli in longitude and transversal directions. Our technique allows a comparative express assessment of wood mechanical properties by means of a contactless non-destructive measurement of its thermal properties using dynamic thermal imaging instead of laborious and material-consuming destructive mechanical tests

utomated real-time classification of functional states: the significance of individual tuning stage

Automated classification of a human functional state is an important problem, with applications including stress resistance evaluation, supervision over operators of critical infrastructure, teaching and phobia therapy. Such classification is particularly efficient in systems for teaching and phobia therapy that include a virtual reality module, and provide the capability for dynamic adjustment of task complexity. In this paper, a method for automated real-time binary classification of human functional states (calm wakefulness vs. stress) based on discrete wavelet transform of EEG data is considered. It is shown that an individual tuning stage of the classification algorithm — a stage that allows the involvement of certain information on individual peculiarities in the classification, using very short individual learning samples, significantly increases classification reliability. The experimental study that proved this assertion was based on a specialized scenario in which individuals solved the task of detecting objects with given properties in a dynamic set of flying objects

Abstracts of The Second Eurasian RISK-2020 Conference and Symposium

This abstract book contains abstracts of the various research ideas presented at The Second Eurasian RISK-2020 Conference and Symposium.The RISK-2020 Conference and Symposium served as a perfect venue for practitioners, engineers, researchers, scientists, managers and decision-makers from all over the world to exchange ideas and technology about the latest innovation developments dealing with risk minimization