Informacja

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

Wyszukujesz frazę "signal-to-noise ratio" wg kryterium: Temat


Tytuł:
An evaluation of the impact of shot and receiver lines spacing on seismic data quality – the Wierzbica 3D AGH seismic experiment
Autorzy:
Barmuta, Jan
Korbecka, Monika
Hadro, Piotr
Pieniądz, Krzysztof
Stefaniuk, Michał
Dzwinel, Krzysztof
Buniak, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/184249.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
seismic data interpretation
signal-to-noise ratio
seismic attributes
Opis:
An attempt was made to describe the quality of the stacked seismic data semi-quantitatively with respect to the spacing of shot and receiver lines. The methods used included: signal-to-noise ratio calculation, seismic-to-well tie accuracy, wavelet extraction effectiveness and reliability of semi-automated interpretation of seismic attributes. This study was focused on the Ordovician-Silurian interval of the Lublin Basin, Poland, as it was considered as a main target for the exploration of unconventional hydrocarbon deposits. Our results reconfirm the obvious dependency between the density of the acquisition parameters and data quality. However, we also discovered that the seismic data quality is less affected by the shot line spacing than by comparable receiver line spacing. We attributed this issue to the fact of the higher irregularity of the shot points than receiver points, imposed by the terrain accessibility. We have also proven that the regularity of receiver and shot point distribution is crucial for the reliable interpretation of structural seismic attributes, since these were found to be highly sensitive to the acquisition geometry.
Źródło:
Geology, Geophysics and Environment; 2020, 46, 2; 93-108
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface Hardness Prediction Model of Turning Duplex Stainless Steel under Different Cutting Variables
Autorzy:
Abdulateef, Osamah Fadhil
Ali, Abduljabar H.
Al Kareem, Salah Sabeeh Abed
Powiązania:
https://bibliotekanauki.pl/articles/2201899.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
CNC turning
orthogonal array
ANN
signal-to-noise ratio
Opis:
The quality of machine components surfaces plays an important impact on their functional performance. Product performance may be restricted by changes to surface integrity, which includes changes to roughness, hardness, and microstructure. In this research, the impact of cutting variables in CNC turning under the conventional cooling condition on surface hardness of Duplex Stainless Steel. Cutting variables under conventional cooling, including cutting speed, feed, and depth of cut, have been optimized utilizing Taguchi’s L9 orthogonal array designed with three stages of turning variables. The optimal variable stages and the degree of significance of the cutting variables, respectively, were determined utilizing the analysis of means (ANOM) and analysis of variance (ANOVA). Effectiveness tests with optimum stages of variables were done to prove the viability of optimization by utilizing Taguchi. It has been found that the maximum surface hardness is most strongly affected by the feed 71.29%, followed by the depth of cut 12.1%, and finally the cutting speed 11.61%.
Źródło:
Advances in Science and Technology. Research Journal; 2023, 17, 1; 1--7
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chinese Syllable and Phoneme Identification in Noise and Reverberation
Autorzy:
Peng, J.
Powiązania:
https://bibliotekanauki.pl/articles/178038.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
syllable identification
phoneme identification
noise
reverberation time
signal-to-noise ratio
Opis:
Chinese is a tonal language, which differentiates it from non-tonal languages in the Western countries. A Chinese character consists of an initial, a final, and a tone. In the present study, the effects of noise and reverberation on the Chinese syllable, initial, final, and tone identification in rooms were investigated by using simulated binaural impulse responses through auralization method. The results show that the syllable identification score is the lowest, the tone identification score is the highest, and the initial iden- tification scores are lower than those of the final identification under the same reverberation time and signal-to-noise ratio condition. The Chinese syllable, initial, and final identification scores increase with the increase of signal-to-noise ratio and decrease of the reverberation time. The noise and reverberation have insignificant effects on the Chinese tone identification scores under most room acoustical environ- ments. The statistical relationship between the Chinese syllable articulation and phoneme articulation had been experimentally proved under different noise and reverberation conditions in simulated rooms.
Źródło:
Archives of Acoustics; 2014, 39, 4; 483-488
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effects of the Noise and Reverberation on the Working Memory Span of Children
Autorzy:
Jianxin, P.
Peng, J.
Powiązania:
https://bibliotekanauki.pl/articles/176546.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
reverberation time
signal-to-noise ratio
working memory span
children
Opis:
Three different reverberation time (RT) conditions were obtained by room acoustical simulation. The working memory span of grades 3 (8 to 9 years old) and 6 children (11 to 12 years old) was tested under these reverberation conditions with different signal-to-noise ratio (SNR) by headphone reproduction in a quiet classroom. The working memory span scores (WMSSs) were obtained under the different RTs and SNRs conditions. The results demonstrated that children’s age, RT and SNR had significant effect on children’s WMSSs. With the increase of SNR and the decrease of RT, the WMSSs increased gradually. Under the same SNR and RT condition, the children’s WMSSs were increased with the increase of their age. Multiple linear regression analysis shows that children’s WMSSs are related to age, RT and SNR, and the correlation coefficient is 0.99.
Źródło:
Archives of Acoustics; 2018, 43, 1; 123-128
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sensor Hop-based Energy Efficient Networking Approach for Routing in Underwater Acoustic Communication
Autorzy:
Kohli, S.
Bhattacharya, P. P.
Powiązania:
https://bibliotekanauki.pl/articles/309397.pdf
Data publikacji:
2017
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
attenuation
clustering
multi-hop routing
signal-to-noise ratio
transmission loss
Opis:
Underwater Wireless Sensor Networks are deployed to explore the world under the water, measure different parameters and communicate the data to the surface, in the widespread applications. The main operating technology of these networks is the acoustic communication. The communication among the sensors and finally to the surface station requires a routing protocol. The sensors being battery limited and unfeasible to be replaced under the water requires an energy efficient routing protocol. Clustering imparted in routing is an energy saving technique in sensor networks. The routing may involve single or multi hop communication in the sensor networks. The paper gives a comparative study of the benchmark protocol multi-hop LEACH with the proposed Sensor Hop-based Energy Efficient Networking Approach (SHEENA) for the shallow as well as deep water in three dimensional Underwater Wireless Sensor Networks. The network energy model for the Underwater Wireless Sensor Networks is based among the different acoustic channel characteristics. The proposed approach is found to give better response.
Źródło:
Journal of Telecommunications and Information Technology; 2017, 1; 44-49
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The optimal power control method in multiuser cellular networks
Autorzy:
Yaremko, O.
Stryhalyuk, B.
Maksymyuk, T.
Lavriv, O.
Kozhurov, D.
Powiązania:
https://bibliotekanauki.pl/articles/411155.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
WCDMA
MIMO
power control policy
signal-to-noise ratio
traffic localization
Opis:
In this paper a method of power control policies optimization in radiointerface of mobile network with code-division multiplexing is proposed. It allows reducing the interference level in downlink and uplink channels. The optimum SNR is provided in the cell based on this power control method. The SNR is enough to ensure capacity requirements and service quality parameters.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2013, 2, 1; 63-67
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chinese Word Identification and Sentence Intelligibility in Primary School Classrooms
Autorzy:
Peng, J.
Powiązania:
https://bibliotekanauki.pl/articles/177322.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
speech identification
reverberation time
signal-to-noise ratio
classroom
speech transmission index
children
Opis:
The Chinese word identification and sentence intelligibility are evaluated by grades 3 and 5 students in the classrooms with different reverberation times (RTs) from three primary school under different signal-to-noise ratios (SNRs). The relationships between subjective word identification and sentence intelligibility scores and speech transmission index (STI) are analyzed. The results show that both Chinese word identification and sentence intelligibility scores for grades 3 and 5 students in the classroom increased with the increase of SNR (and STI), increased with the increase of the age of students, and decreased with the increase of RT. To achieve a 99% sentence intelligibility score, the STIs required for grades 3, grade 5 students, and adults are 0.71, 0.61, and 0.51, respectively. The required objective acoustical index determined by a certain threshold of the word identification test might be underestimated for younger children (grade 3 students) in classroom but overestimated for adults. A method based on the sentence test is more useful for speech intelligibility evaluation in classrooms than that based on the word test for different age groups. Younger children need more favorable classroom acoustical environment with a higher STI than older children and adults to achieve the optimum speech communication in the classroom.
Źródło:
Archives of Acoustics; 2016, 41, 2; 213-219
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative Analysis of the Efficiency of Detecting Some Amplitude-Phase Modulated Signals in Wireless Communication Systems
Autorzy:
Bondariev, Andriy P.
Horbatyi, Ivan V.
Maksymiv, Ivan P.
Altunin, Sergiy I.
Powiązania:
https://bibliotekanauki.pl/articles/227333.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
8-QAM
8-AMMC
signal-to-noise ratio
noise immunity
phase detector
phase locked loop
Opis:
This article presents the results of the research of noiseimmunity of wireless communication systems using signals that are formed on the basis of eight-position quadrature-amplitude modulation (8-QAM) and eight-position amplitude modulation of many components (8-AMMC). The research was conducted using simulation of a wireless communication system, built using a detector, implemented on the basis of a phase locked loop. The influence of phase locked loop parameters on the detection quality of these signals in the condition of the interference in the communication channel was researched, and a comparative analysis of the noise immunity of wireless communication systems using these signals was carried out.
Źródło:
International Journal of Electronics and Telecommunications; 2019, 65, 3; 449-453
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cross Layer Enhanced Adaptive Handoff Initiation Technique
Autorzy:
Abolade, Jeremiah O.
Ibhaze, Augustus E.
Imoize, Agbotiname L.
Atayero, Aderemi A.
Powiązania:
https://bibliotekanauki.pl/articles/1065119.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Base station
Fuzzy Inference
Handoff
Mobile Transmitting Power
Throughput
Velocity
signal-to-noise ratio
Opis:
The population of mobile communication subscribers keeps increasing exponentially with a growing industrial interest in the provision of improved quality of service. To maintain quality of service in a heterogeneous network built for high capacity utilization, the communication network must be stable as mobile users interact within the implemented coverage distribution. One of the basic mechanisms behind this communication metric is its ability to communicate wirelessly with respect to changing locations. Mobility is one critical benefit of mobile communication, which is made possible through the process of Handoff. One of the key performances in mobile communication is Handoff failure (call termination) rate, which is dependent critically on the handoff initiation mechanism. In this paper, the effect of traditional single parameter of either signal-to-noise ratio (SNR) or throughput on handover threshold and hysteresis was investigated. Consequently, a cross layer enhanced adaptive handoff initiation algorithm using fuzzy logic was proposed. The proposed method exploits the capability of soft computing to handle the unpredictable nature of the radio propagation environment. Four critical handoff Network-link parameters were employed to vary the Handoff threshold and Hysteresis in test the adaptive functionality of the algorithm. The proposed algorithm was seen to be adaptive to throughput, SNR, mobile transmitting power (MTP) and mobile velocity, thereby resulting in improved quality of service, marked with a decrease in handoff failure probability rate.
Źródło:
World Scientific News; 2019, 120, 2; 154-167
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relationship Between Chinese Speech Intelligibility of Elderly and Speech Transmission Index
Autorzy:
Peng, Jianxin
Zeng, Jiazhong
Zhao, Yuezhe
Powiązania:
https://bibliotekanauki.pl/articles/1953494.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
speech intelligibility
speech transmission index
signal-to-noise ratio
background noise level
speech sound pressure level
reverberation time
Opis:
In this paper, the relationship between Chinese speech intelligibility (CSI) scores of the elderly aged 60-69 and over 70 years old, and speech transmission index (STI) were investigated through the auralization method under different reverberation time and background noise levels (BNL, 40 dBA and 55 dBA). The results show that the CSI scores of the elderly are significantly worse than those of young adults. For the elderly over 70, the CSI scores become much lower than those of young adults. To be able to achieve the same CSI, the elderly, especially those over 70, need much higher STI and greater SNR than the young. The elderly aged 60-69 and over 70 need to improve their STI by 0.419 and 0.058 respectively under BNL 40 dBA, as well as 0.282 and 0.072 respectively under BNL 55 dBA, so as to obtain the same CSI scores as the young adults.
Źródło:
Archives of Acoustics; 2021, 46, 2; 229-235
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Signal-to-noise analysis in a counter-pumped fiber Raman amplifier
Autorzy:
Felinskyi, G
Dyriv, M
Powiązania:
https://bibliotekanauki.pl/articles/173582.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
amplified spontaneous emission
fiber Raman amplifier
optical signal-to-noise ratio
single-mode fiber
Raman gain
Opis:
The light gain efficiency due to Raman scattering in a distributed fiber Raman amplifier is a subject of our investigation. The detailed analysis of noise properties at one-wave optical signal amplification in a single-mode fiber in the scheme of counter-pumped fiber Raman amplifier is realized in the paper. Experimental results of the amplified spontaneous emission with backward pumping as a base of optical noise evaluation are presented. Raman gain spectrum for a coherent Stokes low-powered signal is calculated and it is compared with the observed spectrum of non-coherent amplified spontaneous emission noise. It is shown that an output optical signal has higher gain than the amplified spontaneous emission and it results in the appreciable growth in the output optical signal-to-noise ratio.
Źródło:
Optica Applicata; 2014, 44, 4; 493-501
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ARL-Wavelet-BPF optimization using PSO algorithm for bearing fault diagnosis
Autorzy:
Ahsan, Muhammad
Bismor, Dariusz
Manzoor, Muhammad Arslan
Powiązania:
https://bibliotekanauki.pl/articles/27322619.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
signal-to-noise ratio
asymmetric real Laplace wavelet
bandpass filter
particle swarm optimization
spectral kurtosis
fault frequency
Opis:
Rotating element bearings are the backbone of every rotating machine. Vibration signals measured from these bearings are used to diagnose the health of the machine, but when the signal-to-noise ratio is low, it is challenging to diagnose the fault frequency. In this paper, a new method is proposed to enhance the signal-to-noise ratio by applying the Asymmetric Real Laplace wavelet Bandpass Filter (ARL-wavelet-BPF). The Gaussian function of the ARL-wavelet represents an excellent BPF with smooth edges which helps to minimize the ripple effects. The bandwidth and center frequency of the ARL-wavelet-BPF are optimized using the Particle Swarm Optimization (PSO) algorithm. Spectral kurtosis (SK) of the envelope spectrum is employed as a fitness function for the PSO algorithm which helps to track the periodic spikes generated by the fault frequency in the vibration signal. To validate the performance of the ARL-wavelet-BPF, different vibration signals with low signal-to-noise ratio are used and faults are diagnosed.
Źródło:
Archives of Control Sciences; 2023, 33, 3; 589--606
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oszacowanie stosunku sygnału do szumu w asynchronicznych przetwornikach analogowo-cyfrowych
Signal-to-Noise Ratio for asynchronous analog-to-digital converters
Autorzy:
Jabłeka, M.
Powiązania:
https://bibliotekanauki.pl/articles/156639.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
przetworniki analogowo-cyfrowe
stosunek sygnału do szumu
próbkowanie
kwantyzacja
analog-to-digital converters
signal-to-noise ratio
sampling
quantization
Opis:
W artykule przedstawiono porównanie współczynnika stosunku sygnału do szumu (SNR) dla synchronicznych oraz asynchronicznych przetworników analogowo-cyfrowych. Badania wykonano dla trzech modeli stochastycznych sygnałów wejściowych o rozkładach Gaussa, równomiernym oraz sygnału sinusoidalnego. Oszacowano spadek wartości współczynnika SNR dla asynchronicznego przetwornika analogowo-cyfrowego typu Sigma-Delta w porównaniu z klasycznym przetwornikiem synchronicznym, wywołany odpowiednio nieliniowością bloku próbkującego (-10dB) oraz niejednoznacznością procesu kwantyzacji (-3dB).
This paper shows the difference between the SNR level for classical synchronous analog-to-digital converters (ADC) and asynchronous Sigma-Delta analog-to-digital converters (ASD ADC) (Fig. 2) [4, 5]. Simulative evaluation shows that the conversion quality for ASD ADCs is about 2 bit worse than for classical synchronous ADCs (Tabs. 1 and 2). The reason for such a difference is firstly the nonlinearity of an ASD ADC sampling block (ASDM) (-10dB in SNR value) and secondly the quantization noise whose variance value is two times bigger than in case of classical ADCs ( 3dB in SNR). Such big quantization noise is caused by the need of measuring the time position of two independent pulse edges with uniform probability density function (pdf) for the quantization error [8]. The difference for these two measurements yields a triangular distribution which overlaps consecutive quantization intervals (Fig. 1b) and is the source of uncertainty of the digital word at the ASD ADC output [8]. Simulations were performed for four configurations of sampling and quantization blocks, the classical ADC and three other sets of linear/nonlinear sampling blocks and certain/uncertain quantization blocks. Such simulation methodology shows the influence of properties of each element of the signal path in the ASD-ADC on the quantization noise pdf (Fig. 3). The SNR is evaluated for three stochastic models of input signals: Gauss, uniform and sinusoidal signal. Comparison requires assuming the proper amplitude and frequency domain, because of balance between the dynamic range and bandwidth of the ASD ADC.
Źródło:
Pomiary Automatyka Kontrola; 2011, R. 57, nr 1, 1; 30-32
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Development of Iteration Method for Optimization of Pair "Signal-filter"
Autorzy:
Koshevyy, V.M.
Gorishna, I.
Powiązania:
https://bibliotekanauki.pl/articles/116953.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
iteration method for optimization
iteration method
method for optimization
Matlab
radar signals
signal-to-noise ratio
signal processing
pair signal-filter
Opis:
This paper is devoted to the improvement of the working methods of the "signal-filter" pair using an iterative procedure to maximize the signal-to-noise ratio, namely, to highlight the useful signals to provide information about the environment during the adaptive radar sensing in the conditions of obstacles. An algorithm for determining the optimal filter for suppressing undesired side lobes is proposed, which allows improving the process of detection and identification the target objects. Qualitative characteristics and the stages of space-time signal processing in the radar were justified under correlation conditions (ССF) between the received and expected signals. The using of probing radar signals, shortened in their duration were proposed in order to reduce the power of reflections from the underlying surface and increase the contrast of the radar image. A simulation test of the developed methodology was carried out in order to confirm the reliability of the proposed algebraic expressions using a mathematical model implemented in the Matlab programming environment, and a conclusion is drawn about the practical quality of the technical solutions developed on the basis of the iteration method.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 541-544
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analytical review and study on multipath routing protocols
Autorzy:
More, Shivaprasad
Naik, Udaykumar
Powiązania:
https://bibliotekanauki.pl/articles/2050101.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
multipath routing protocol
Peak Signal to Noise Ratio
geographic routing protocol
Vehicular Ad Hoc Networks
proactive routing protocol
Opis:
Vehicular Ad Hoc Networks (VANET) constitute a promising technology for Intelligent Transport Systems (ITS). VANET are highly dynamic in their nature because of the movements of vehicles, which are acting as nodes. The routing protocol must be designed for dealing with multiple limiting conditions, like link failures, handoffs, and long congestion periods, which is very challenging. The survey of different routing protocols in VANET provides a significant information for building smart ITS. Accordingly, the present survey is devoted to the existing distinct multipath routing protocols. This review article provides a detailed account on 50 research papers, presenting the different kinds of multipath routing protocols, namely proactive routing protocols, ad-hoc-based routing protocols, Greedy Perimeter Stateless Routing (GPSR), hybrid routing protocols, as well as geographic routing protocols. Besides the classification and cursory description, the present study addresses also several of the important parameters, like evaluation metrics, implementation tool, publication year, datasets utilized, Peak Signal to Noise Ratio (PSNR), and packet end-to-end delay with respect to various techniques considered. Eventually, the research gaps and issues of various multipath routing protocols are presented with the intention of pointing out directions for future research.
Źródło:
Control and Cybernetics; 2020, 49, 4; 369-391
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł

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