Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "array method" wg kryterium: Wszystkie pola

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 31
Tytuł:
A new mutual coupling compensation method for receiving antenna array-based DOA estimation
Autorzy:
Parhizgar, N.
Powiązania:
https://bibliotekanauki.pl/articles/141040.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
antenna array
beamforming
compensation matrix
DOA estimation
mutual coupling
MUSIC algorithm
Opis:
Most receiving antenna arrays suffer from the mutual coupling problem between antenna elements, which can critically influence the performance of the array. In this work, a novel and accurate form of compensation matrix is applied to compensate the mutual coupling in a uniform linear array (ULA). This is achieved by applying a new method based on solving a boundary value problem for the whole ULA. In this method, both self and mutual impedances are exploited in an accurate characterization of mutual impedance matrix which results in a perfect mutual coupling compensation method, and hence a very accurate direction of arrival (DOA) estimation. In the new scheme, the compensation matrix is obtained by using the relationship between measured voltage and theoretical coupled voltage based on the MOM. Numerical results show that using DOA estimation algorithms to the decoupled voltage obtained by using this method leads to an excellent performance of DOA estimation with higher accuracy and resolution.
Źródło:
Archives of Electrical Engineering; 2018, 67, 2; 419--431
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A time-domain pulse amplitude and width discrimination method for photon counting
Autorzy:
del Mar Correa, M.
Pérez, F. R.
Powiązania:
https://bibliotekanauki.pl/articles/220971.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
field-programmable gate array
time-to-digital converter
spectroscopy
photomultiplier
photon counting
discriminator
after-pulsing
low-voltage differential signalling
Opis:
This work shows a time-domain method for the discrimination and digitization of parameters of voltage pulses coming from optical detectors, taking into account the presence of electronic noise and afterpulsing. Our scheme is based on an FPGA-based time-to-digital converter as well as an adjustable-threshold comparator complemented with commercial elements. Here, the design, implementation and optimization of a multiphase TDC using delay lines shorter than a single clock period is also described. The performance of this signal processing system is discussed through the results from the statistical code density test, statistical distributions of measurements and information gathered from an optical detector. Unlike dual voltage threshold discriminators or constant-fraction discriminators, the proposed method uses amplitude and time information to define an adjustable discrimination window that enables the acquisition of spectra.
Źródło:
Metrology and Measurement Systems; 2018, 25, 2; 269-282
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ACdTe X-ray imaging device using vertical thin film field emitter array
Autorzy:
Tsunekawa, Y.
Nakagawa, N.
Neo, Y.
Morii, H.
Aokia, T.
Mimura, H.
Nagao, M.
Yoshidab, T.
Kanemaru, S.
Powiązania:
https://bibliotekanauki.pl/articles/385284.pdf
Data publikacji:
2009
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
Vertical Thin Film Field Emitter Array
Schottky CdTe diode
ion induced bending
etch-back method
Opis:
We have demonstrated the novel CdTe X-ray imaging device that consists of a Schottky CdTe diode and a Vertical Thin Film Field Emitter Array (VTF-FEA). The Schottky CdTe diode was fabricated by deposied indium (In) thin film on a Cl-doped p-type (p-type) CdTe substrate and Sb2S3 on the opposite side of the CdTe substrate. VTF-FEA was fabricated by ion induced bending (IIB) and etch-back method. The signal current was successfully detected by the recombination of the stored on the surface holes with the emitted electrons from FEA, and it was clarified that it depended on the X-ray intensity. And the imaging device succeeded in obtaining the Cu plate transmission image.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 4; 137-139
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of the Ultrasonic Ring Array Used in UTT for the Reflection Method Examinations of Structures
Autorzy:
Staszewski, Wiktor
Gudra, Tadeusz
Opieliński, Krzysztof J.
Powiązania:
https://bibliotekanauki.pl/articles/1945647.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
ultrasonic reflection tomography
dynamic focusing
ultrasonic ring array
Opis:
The ultrasonic ring array, designed for examining the female breast with the use of ultrasonic transmission tomography (UTT), has been adapted for reflection method trials. By altering the activation time of ultrasonic elementary transducers, the parameters of the focus were changed with the aim at improving the quality of the obtained ultrasound image. For this purpose, a phantom consisting of rods having varying thicknesses was analyzed when moving the position of the focus with the use of dynamic focusing along the symmetry axis of the ring array ranging from 30 to 130 mm from central transducers. In previous trials, which applied an algorithm using the sum of all the acoustic fields, a series of simulations was performed in conditions identical to the phantom trial. This paper documents attempts at improving the parameters of the acoustic field distribution during unconventional focusing. The research here presented is a continuation of examinations focusing on the acoustic field distribution inside the ultrasonic ring array with the aim at finding the best possible cross-section of the female breast using the reflection method.
Źródło:
Archives of Acoustics; 2021, 46, 3; 427-434
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania prądami wirowymi połączeń spawanych – wpływ doboru warunków i parametrów badania na czułość i wiarygodność metody – przykłady zastosowań
Eddy current tests of welded joints - the impact of selection of test conditions and parameters on the sensitivity and reliability of the method - examples of applications
Autorzy:
Wocial, Adam
Powiązania:
https://bibliotekanauki.pl/articles/107919.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
eddy current welds examination
eddy current array
duplex stainless steel
metalized metallic cladding layer
electrical conductivity
SCC stress corrosion cracking
and electron beam welding
prądy wirowe
badania prądami wirowymi sondami mozaikowymi
połączenia spawane wiązką elektronów
duplex
inconel
warstwy napawane
metaliczne powłoki ochronne
pęknięcia korozji naprężeniowej
Opis:
The article presents a practical approach in the application of the eddy current method in cases outside the scope and recommendations of EN/ISO 17643: 2015 [1] regarding the testing of eddy currents of welded joints. This standard does not explicitly limit the scope of application to specific materials and welding methods, but gives e.g. recommendations regarding calibration standards, probe construction and test parameters. Such a situation may cause misunderstanding and a number of wrong decisions affecting the result of the examination. The article gives several examples of eddy current testing of welded joints where a completely new approach was required that went far beyond the aforementioned standard, e.g. testing of aluminum welds, duplex steel, metallic coatings, and electron beam welding.
W artykule zaprezentowane jest praktyczne podejście w zastosowaniu metody prądów wirowych w przypadkach wykraczających poza zakres i zalecenia normy EN ISO 17643: 2015[1] dotyczącej badania prądami wirowymi połączeń spawanych. Norma ta nie ogranicza wyraźnie zakresu stosowania do konkretnych materiałów i metod spawania, natomiast podaje np. zalecenia dotyczące wzorców kalibracyjnych, budowy sond i parametrów badania. Sytuacja taka może powodować niezrozumienie i szereg błędnych decyzji wpływających na wynik badania. W artykule podano kilka przykładów badania prądami wirowymi połączeń spawanych, gdzie wymagane było zupełnie nowe podejście wykraczające daleko poza wspomnianą normę jak np. badanie spoin stali duplex, aluminium, badania poprzez powłoki metaliczne czy np. spawanie wiązką elektronów.
Źródło:
Badania Nieniszczące i Diagnostyka; 2019, 4; 29-34
2451-4462
2543-7755
Pojawia się w:
Badania Nieniszczące i Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Blade section profile array lifting surface design method for marine screw propeller blade
Autorzy:
Król, Przemysław
Powiązania:
https://bibliotekanauki.pl/articles/259996.pdf
Data publikacji:
2019
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
marine propeller
lifting surface
blade section profile
design
Opis:
The lifting surface model is widely used in screw propeller design and analysis applications. It serves as a reliable tool for determination of the propeller blade mean line and pitch distribution. The main idea of this application was to determine the blade shape that would satisfy the kinematic boundary condition on its surface with the prescribed bound circulation distribution over it. In this paper a simplified lifting surface method is presented – in which the 3D task for the entire blade is replaced by a set of 2D tasks for subsequent blade section profiles.
Źródło:
Polish Maritime Research; 2019, 4; 134-141
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Discussion around IR material and structure issues to go toward high performance small pixel pitch IR HOT FPAs
Autorzy:
Gravrand, Olivier
Baier, Nicolas
Ferron, Alexandre
Rochette, Florent
Lobre, Clément
Bertoz, Jocelyn
Rubaldo, Laurent
Powiązania:
https://bibliotekanauki.pl/articles/2204207.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:
mid-wave infrared
focal plane array
high operating temperature
small pitch
modulation transfer function
finite element method
Opis:
In the last decade, infrared imaging detectors trend has gone for smaller pixels and larger formats. Most of the time, this scaling is carried out at a given total sensitive area for a single focal plane array. As an example, QVGA 30 μm pitch and VGA 15 μm pitch exhibit exactly the same sensitive area. SXGA 10 μm pitch tends to be very similar, as well. This increase in format is beneficial to image resolution. However, this scaling to even smaller pixels raises questions because the pixel size becomes similar to the IR wavelength, but also to the typical transport dimensions in the absorbing material. Hence, maintaining resolution for such small pixel pitches requires a good control of the modulation transfer function and quantum efficiency of the array, while reducing the pixel size. This might not be obtained just by scaling the pixel dimensions. As an example, bulk planar structures suffer from excessive lateral diffusion length inducing pixel-to-pixel cross talk and thus degrading the modulation transfer function. Transport anisotropy in some type II superlattice structures might also be an issue for the diffusion modulation transfer function. On the other side, mesa structures might minimize cross talk by physically separating pixels, but also tend to degrade the quantum efficiency due to a non-negligible pixel fill factor shrinking down the pixel size. This paper discusses those issues, taking into account different material systems and structures, in the perspective of the expected future pixel pitch infrared focal plane arrays.
Źródło:
Opto-Electronics Review; 2023, 31, Special Issue; art. no. e144561
1230-3402
Pojawia się w:
Opto-Electronics Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electromagnetic launch system based on a Halbach array configuration
Autorzy:
Gherman, L.
Rotaru, C.
Pearsica, M.
Powiązania:
https://bibliotekanauki.pl/articles/198034.pdf
Data publikacji:
2018
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
Lorentz force
Halbach array
electromagnetic catapult
Finite Element Method
siła Lorentza
tablica Halbacha
katapulta elektromagnetyczna
Metoda Elementów Skończonych
Opis:
The paper analyses a new configuration of an electromagnetic launch system (EMLS) able to accelerate a 1-kg mass projectile at a muzzle velocity of 3,000 m/s with an acceleration length of 10 m. The analyses consist of a mathematical calculation of the value of acceleration force necessary to achieve the project objectives. Based on these results a new configuration of an EMLS is presented. The projectile is accelerated by the Lorentz force where the magnetic field is created by permanent magnets made of neodymium iron boron (NdFeB). The permanent magnets are arranged in a cylindrical Halbach array with a uniform field inside. The copper wire coils have a special design, which produce a large acceleration Lorentz force with a current under 1,000 A. A short comparative0 analysis shows the advantages of this new solution compared with well-known accelerators such as railguns and coilguns. In the next part of the paper, we present the results of a simulation of this configuration with an interactive software package based on the finite element method used to analyse and solve three-dimensional electromagnetic field problems and simulate the movement of the projectile. These results confirm the advantages of this new configuration and open the way to test the system under laboratory conditions. At the end of the paper, conclusions are presented. This new EMLS, based on Halbach array configuration, can be used as a catapult for UAVs, airplanes or missiles, as a mass driver for small satellites or as a gun, which is a better solution than railguns or coilguns.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2018, 101; 59-66
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High-resolution Direction of Arrival Estimation Method Based on Sparse Arrays with Minimum Number of Elements
Autorzy:
Mohammed, Jafar Ramadhan
Powiązania:
https://bibliotekanauki.pl/articles/1839475.pdf
Data publikacji:
2021
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
compressed sensing
direction of arrival
DOA
estimation
sparse array
Opis:
Regular fully filled antenna arrays have been widely used in direction of arrival (DOA) estimation. However, practical implementation of these arrays is rather complex and their resolutions are limited to the beamwidth of the array pattern. Therefore, higher resolution and simpler methods are desirable. In this paper, the compressed sensing method is first applied to an initial fully filled array to randomly select the most prominent and effective elements which are used to form the sparse array. To keep the dimension of the sparse array equal to that of the fully filled array, the first and the last elements were excluded from the sparseness process. In addition, some constraints on the sparse spectrum are applied to increase estimation accuracy. The optimization problem is then solved iteratively using the iterative reweighted l1 norm. Finally, a simple searching algorithm is used to detect peaks in the spectrum solution that correspond to the directions of the arriving signals. Compared with the existing scanned beam methods, such as the minimum variance distortionless response (MVDR) technique, and with subspace approaches, such as multiple signal classification (MUSIC) and ESPIRT algorithms, the proposed sparse array method offers better performance even with a lower number of array elements and in severely noisy environments. Effectiveness of the proposed sparse array method is verified via computer simulations.
Źródło:
Journal of Telecommunications and Information Technology; 2021, 1; 8-14
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High-resolution Direction of Arrival Estimation Method Based on Sparse Arrays with Minimum Number of Elements
Autorzy:
Mohammed, Jafar Ramadhan
Powiązania:
https://bibliotekanauki.pl/articles/1839489.pdf
Data publikacji:
2021
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
compressed sensing
direction of arrival
DOA
estimation
sparse array
Opis:
Regular fully filled antenna arrays have been widely used in direction of arrival (DOA) estimation. However, practical implementation of these arrays is rather complex and their resolutions are limited to the beamwidth of the array pattern. Therefore, higher resolution and simpler methods are desirable. In this paper, the compressed sensing method is first applied to an initial fully filled array to randomly select the most prominent and effective elements which are used to form the sparse array. To keep the dimension of the sparse array equal to that of the fully filled array, the first and the last elements were excluded from the sparseness process. In addition, some constraints on the sparse spectrum are applied to increase estimation accuracy. The optimization problem is then solved iteratively using the iterative reweighted l1 norm. Finally, a simple searching algorithm is used to detect peaks in the spectrum solution that correspond to the directions of the arriving signals. Compared with the existing scanned beam methods, such as the minimum variance distortionless response (MVDR) technique, and with subspace approaches, such as multiple signal classification (MUSIC) and ESPIRT algorithms, the proposed sparse array method offers better performance even with a lower number of array elements and in severely noisy environments. Effectiveness of the proposed sparse array method is verified via computer simulations.
Źródło:
Journal of Telecommunications and Information Technology; 2021, 1; 8-14
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of Lack of Fusion and Incomplete Penetration in Butt Weld Joint by Ultrasonic Phased Array Method and X-Ray Method
Autorzy:
Koňár, R.
Mičian, M.
Boháčik, M.
Gucwa, M.
Powiązania:
https://bibliotekanauki.pl/articles/357016.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
internal defects
butt weld joint
nondestructive testing
lack of fusion
incomplete penetration
Opis:
The main goal of the article is to identify artificially created defects like lack of fusion and incomplete penetration in buttweld joint using non-destructive volumetric methods. These defects are the most serious defects in welds of steel constructionsfrom the safety point of view. For identification, an ultrasonic phased array technique and a conventional X-ray using digital imaging were used. The theoretical part of the article describes the current state of the given issue and provides basic theoretical knowledge about ultrasonic and X-ray welding tests. In the experimental part, the procedure and results of testing butt weld joint are described by both non-destructive methods. The butt weld joint was made from steel S420MC. Each indication obtained by the ultrasonic and x-ray technique is supplemented by the macrostructure of the weld taken from the indication position. The results of the experimental work mentioned in the article point to the possibility and reliability of the identification of melting defects by selected nondestructive methods in terms of their character and orientation.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 3; 1117-1124
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation into the production flaws in thin solid carbon laminates by using the ultrasonic phased array method
Autorzy:
Pil'a, J.
Ojciec, M.
Balcerzak, T.
Powiązania:
https://bibliotekanauki.pl/articles/198183.pdf
Data publikacji:
2018
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
carbon
composites
CFRP
non-destructive testing
Phased Array
ultrasonic phased array
węgiel
kompozyty
badania nieniszczące
Opis:
Composites are used in a wide variety of markets, including the aerospace, architecture, automotive and military sectors. Along with the increased use of composites, multiple non-destructive testing (NDT) methods have been further developed specifically for inspecting them. Among them, one can single out ultrasonic phased arrays. Research described in this article focuses on the use of ultrasonic PAs for production flaw investigations into an aileron. The examined part was made of up to 16 layers of BAER 3068 epoxy carbon prepreg. The investigation was carried out by using the tap test, conventional ultrasonic measurement and phased array methods. The phased array method allowed us to thoroughly check the affected specimen and confirm the presence of a production flaw in the form of epoxy resin build-up. The results show how effective this method can be and emphasize its advantages over traditional ultrasonic inspections.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2018, 101; 141-148
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Korozja naprężeniowa – kiedy głębokość wady ma znaczenie
Stress corrosion - when the defect depth is important
Autorzy:
Sirois, M.
Bouchard, M.
Raude, A.
Boba, R.
Powiązania:
https://bibliotekanauki.pl/articles/107760.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
korozja naprężeniowa
nieniszcząca ocena
metoda wiroprądowa
wiroprądowy przetwornik macierzowy
stress corrosion
nondestruction inspection
eddy current method
eddy current array probe
Opis:
Scharakteryzowano zjawisko korozji naprężeniowej pod kątem możliwości detekcji klasycznymi metodami NDT. Opisano metodę wiroprądową z zastosowaniem sondy macierzowej w kontekście wykrywania niezgodności spowodowanych korozją naprężeniową. Zaprezentowano system kompensacji zmiany odległości cewki od powierzchni oraz możliwości wymiarowania. Przedstawiono charakterystykę przykładowej głowicy oraz przedstawiono wyniki pomiaru na elemencie referencyjnym i rzeczywistym. Przedstawione wyniki wykazują wysoką skuteczność w wykrywaniu niezgodności powstałych w wyniku korozji naprężeniowej. Ostatecznie dokonano porównania wyników uzyskanych metodą prezentowaną oraz metodami magnetyczno-proszkową i ultradźwiękową.
The stress corrosion cracking phenomena has been characterized in terms of detection capabilities by classical NDT methods. An eddy current method using a array probe has been described in the context of detecting flaws caused by stress corrosion. A compensation system for changes of the probe lift-off distance and the dimensioning capability was presented. The characteristics of the sample head are shown and the measurement results are presented on the reference and real elements. The results shown are highly effective in detecting flaws caused by stress corrosion. Finally, the results obtained by the presented method with the ones of magnetic penetrant and ultrasonic methods were compared.
Źródło:
Badania Nieniszczące i Diagnostyka; 2017, 3; 43-46
2451-4462
2543-7755
Pojawia się w:
Badania Nieniszczące i Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Method for the correlation coefficient estimation of the bottom echo signal in the shallow water application using interferometric echo sounder
Autorzy:
Grall, Piotr
Marszal, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2146649.pdf
Data publikacji:
2021
Wydawca:
Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:
coherence estimation
multiphase echo sounder
sub-array processing
szacowanie koherencji
echosonda
Opis:
The article presents a new method for the assessment of bottom echo correlation coefficient in the presence of multiple echoes. Bottom correlation coefficient is a parameter that characterizes spatial properties of echo signal. Large variability of the bottom shape or properties (for example caused by the presence of bottom objects) and the presence of the acoustic shadow strongly influence the value of the correlation coefficient. There is a problem, however, in the proper determination of correlation coefficient of the bottom echo when more than one echo is present. In the shallow water application, the echoes coming to the hydroacoustic array from various directions influence the measured value of the correlation coefficient. The method proposed by the authors challenges this issue by applying a subarray processing based on the initial depth estimation. The article presents the preliminary research results and describes the limitations of the proposed method.
Źródło:
Vibrations in Physical Systems; 2021, 32, 1; art. no. 2021103
0860-6897
Pojawia się w:
Vibrations in Physical Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Method of Logical Synthesis of Integrated Circuits in basis K-PLA
Autorzy:
Novikov, S.
Powiązania:
https://bibliotekanauki.pl/articles/92848.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
logical synthesis of circuits
programmable logic array
PLA
Źródło:
Studia Informatica : systems and information technology; 2006, 1(7); 247-253
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 31

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies