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1
Content available Elongation determination using finite element and boundary element method
100%
Kisała P. , Wójcik W. , Smailov N. , Kalizhanova A. , Harasim D.
International Journal of Electronics and Telecommunications
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2015
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tom Vol. 61, No. 4
389-394
EN
This paper presents an application of the finite element method and boundary element method to determine the distribution of the elongation. Computer simulations were performed using the computation of numerical algorithms according to a mathematical structure of the model and taking into account the values of all other elements of the fiber Bragg grating (FBG) sensor. Experimental studies were confirmed by elongation measurement system using one uniform FBG.
2
Content available remote Water recycling automation of car wash with cleaning channel and changeable adsorptive plate holders
100%
Zhassandykyzy M. , Aripovich T. A. , Wójcik W. , Kalizhanova A. , Gromaszek K.
Przegląd Elektrotechniczny
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2017
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tom R. 93, nr 5
144--147
EN
Almaty car service recycling water supply is an important component of environmental safety and of reducing potable water consumption by industry. The article proposes the installation of recycling water supply, the principle of which is based on the purification of oily water effluents in the adsorption changeable cassettes. The pilot installation and algorithm of calculation engineering method allow determining the height and thickness of the adsorbent bed in a removable cassette. Computer experiments and the three-dimensional model confirm calculations and visualize the process of hydrocarbons overflow through the adsorbent bed. This provides automation of water purification process using modern microcontrollers and SCADA-systems.
PL
Istalacja recyklingu wody w stacji obsługi samochodów miasta Almaty stanowi ważny elementem bezpieczeństwa ekologicznego oraz zmniejszenia zużycia wody pitnej przez przemysł. Artykuł omawia instalację recyrkulacji wody, wykorzystującą wymienne kasety adsorpcyjne. Zastosowany w instalacji pilotażowej algorytm pozwolił na określenie parametrów złoża adsorbentu w wymiennych kasetach. Z kolei parametry przepełniania złoża adsorbentu określają przeprowadzone badania symulacyjne z trójwymiarowym modelem. Przedstawione rozwiązanie zapewnia automatyzację procesu oczyszczania wody z wykorzystaniem mikrokontrolerów i systemów SCADA.
3
Content available Optymalizacja parametrów światłowodowych czujników do pomiaru temperatury
86%
Dziubiński G. , Harasim D. , Skorupski K. , Mussabekov K. , Kalizhanova A. , Toigozhinova A.
Rocznik Ochrona Środowiska
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2016
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tom Tom 18, cz. 2
309--324
EN
Nowadays, there are many devices the failure of which could not only lead to huge financial losses but also wreak havoc in the natural environment. Such circumstances require us to analyze the electrical components before something dangerous happens. Early reaction gives an opportunity to implement prevention measures and avoid serious consequences. Optical fiber sensors have a number of advantages, the most important of which include immunity to electromagnetic interference, low weight and the ability to incorporate them within the measured structure. Fiber Bragg gratings have other special advantages; for instance, they enable the creation of distributed sensing arrays, which contain multiple sensors. They are also insensitive to optical power source fluctuations. The multitude of FBG sensors applications extorted fabrication of gratings with different spectral shapes. Uniform gratings have spectra with strong side lobes which could affect the processing characteristics of temperature sensor. Apodization is one of ways for affecting the gratings spectral shape. This article concerns simulations based on an original computer application, which is numerical model implementation of Transfer Matrix Method. It allows to determine the spectral characteristic of optical components on the basis of the theory of coupled modes and matrix description of electromagnetic wave that passes through optical fiber. Different fiber gratings lengths were analyzed according to their reflection and transmission spectra. In the beginning, the impact of various parameters on the Bragg grating spectral characteristics was checked. Results of those simulations have been attached. The article covers measurement of real optic elements put in climatic chamber and Bragg gratings, produced under very strict conditions. The profile of the laser beam was approximated by Gaussian function using MatLab software and additional tools from package. Function matching has been defined as statistical parameters and evaluated later. The comparison of mathematical model and physical optical system, based on previously designated function apodization, has been covered. The results of these two visualizations have been summarized to better exemplify the differences and similarities. The previously measured fiber Bragg grating has been proposed as temperature sensor and parameters which may be used to construct an optical fiber temperature sensor were established. Temperature sensitivity was determined in the end.
4
Content available Employing Optical Measurements for Monitoring and Diagnostics of Combustion Process in Industrial Conditions
86%
Wójcik W. , Suleimenov B. , Junisbekov M. , Kalizhanova A. , Smailova S. , Mussabekov R.
Journal of Ecological Engineering
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2017
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tom Vol. 18, nr 1
273--283
EN
The paper discusses some practical problems conected with introdction of modern coal combustion technologies as well as biomass co-combustion. In order to ensure that the combustion process runs in a proper way, the multichannel fiber optic monitoring system was applied. The system converts the optical signals coming from several flame zones to electrical that were further transmitted to the control room. The article prsents signal analyses made in time-frequency domain using short-time Fourier transform and wavelet transform and the way of their visualization to power boiler operators.
5
Content available remote Colorimeter based on color sensor
72%
Snizhko D. V. , Sushko O. A. , Reshetnyak E. A. , Shtofel D. H. , Zyska T. , Smolarz A. , Mussabekov N. , Kalizhanova A.
Przegląd Elektrotechniczny
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2017
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tom R. 93, nr 5
96--101
EN
In this paper colorimeter based on color sensor is considered. The developed colorimeter experimental utilization is shown on example of detection Cu2+, Co2+ ions and Neutral Red indicator. Realized measurement optical system in the colorimeter supports operation with different types of sorbents, as possibility is shown an operation with silica, polyurethane foam and the indicator paper. Dynamic range of device at 12 bit per channel and well stability of characteristic are enough to work with fine reliability that is no more 0.7% for analyzed test systems.
PL
W artykule przedstawiono kolorymetr zbudowany z wykorzystaniem czujnika barwy. Przedstawiono wykorzystanie przedstawionego kolorymetry na przykładzie detekcji jonów Cu2+, Co2+ i neutralnego wskaźnika barwy czerwonej. Zrealizowany system optyczny kolorymetru umożliwia pracę z różnymi rodzajami sorbentów. Możliwości te pokazano z wykorzystaniem krzemionki, pianki poliuretanowej i papierka wskaźnikowego.
6
Content available Calculation and Selection of Flat-Plate Solar Collector Geometric Parameters with Thermosiphon Circulation
72%
Amirgaliyev Y. , Kunelbayev M. , Wójcik W. , Amirgaliyev B. , Kalizhanova A. , Auelbekov O. , Kataev N. , Kozbakova A.
Journal of Ecological Engineering
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2018
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tom Vol. 19, nr 6
176--181
EN
The article describes a newly developed calculation technique and the choice of the geometrical parameters of the solar collector with the siphon effect. The dependence of the cross section of the pipe on the flow time for different values of the head is also shown. With an increase in the siphon head, the flow time of the liquid increases as well. This is explained by the fact that with increasing head, the hydraulic resistance of the siphon rises, which leads to a decrease in the velocity of the fluid. For the first time, a relationship determining the time of fluid outflow in dependence on the geometric parameters of the solar collector is formulated. The developed technique allowed to establish that the local hydraulic resistance and friction play a significant role in the heat carrier flow rate.
7
Content available remote Multispectral method and means for determining the distance of the shot on the basis of the study of gunshot injuries of the skin tissues
72%
Petruk V. , Kvaternyuk S. , Kvaternyuk O. , Mokanyuk O. , Petruk R. , Mussubekov R. , Wójcik W. , Toigozhinova A. , Kalizhanova A.
Przegląd Elektrotechniczny
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2017
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tom R. 93, nr 3
129--132
EN
The work carried out research and development of methods and means of multispectral vision measurement control and diagnosing of parameters of inhomogeneous biological media for biomedical diagnostics with the use of the n-dimensional multispectral data for each pixel of the array of digital images obtained by the CCD camera. Application results can use to diagnose the nature and severity of gunshot injuries to the biomannequins, biological and physiological properties of the skin tissues that are close to the morphological and functional characteristics of human.
PL
W pracy przedstawiono badania oraz opracowanie metod i środków multispektralnych pomiarów wizyjnych i diagnozowania parametrów niejednorodnych mediów biologicznych dla diagnostyki biomedycznej z wykorzystaniem wielospektralnych n-wymiarowych danych dla każdego piksela tablicy cyfrowych obrazów uzyskanych z aparatu z matrycą CCD. Wyniki aplikacji mogą być użyte, do diagnozowania rodzaju i skali obrażeń postrzałowych bio-manekinów, właściwości biologicznych i fizjologicznych tkanek skóry, zbliżonych do ludzkich cech morfologicznych i funkcjonalnych.
8
Content available remote Principles of computer planning in the functional nasal surgery
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Avrunin O. G. , Nosova Y. V. , Shuhlyapina N. O. , Zlepko S. M. , Tymchyk S. V. , Hotra O. , Imanbek B. , Kalizhanova A. , Mussabekova A.
Przegląd Elektrotechniczny
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2017
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tom R. 93, nr 3
140--143
EN
The theoretical foundations and principles of computer planning for functional rhinosurgical interventions are proposed in this paper. The theoretical base, stages and possibilities of computer planning for functional nasal surgery are described. Computed surgical planning should be based on a complex anatomical and functional model, that combines data from X-ray computed tomography (X-ray CT) with the results of functional studies from rhinomanometry. Practical recommendations for evidence based surgical computer planning are discussed. Future of proposed method is to study the effect of various anatomical structures of the nasal cavity on the aerodynamic characteristics of the nasal airways and the creation of a database with containing information about the type changes of nasal resistance at typical rhinosurgical interventions.
PL
W artykule zostały zaproponowane podstawy teoretyczne i zasady komputerowego planowania zabiegów neurochirurgii czynnościowej. Zostały opisane podstawy teoretyczne, etapy i możliwości planowania komputerowego w czynnościowej chirurgii nosa. Planowanie komputerowe w chirurgii powinno bazować na kompleksowym anatomicznym i funkcjonalnym modelu, który zawiera wyniki rentgenowskiej tomografii komputerowej i badań funkcjonalnych rynomanometrii. Zostały omówione praktyczne zalecenia dotyczące komputerowego planowania opartego na dowodach w chirurgii. Przyszłością zaproponowanej metody jest zbadanie wpływu różnych struktur anatomicznych jamy nosowej na charakterystyki aerodynamiczną nosowych dróg oddechowych i stworzenie bazy danych zawierającej informacje o zmianach oporu nosowego przy typowych zabiegach neurochirurgicznych.
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