Informacja

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

Wyszukujesz frazę "contour" wg kryterium: Temat


Tytuł:
Evaluation of Tunnel Contour Quality Index on the Basis of Terrestrial Laser Scanning Data
Autorzy:
Dybeł, Piotr
Dybeł, Katarzyna
Cieślik, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/1845142.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
TCI
tunnel
contour quality
terrestrial laser scanning
TLS
overbreak
contour roughness
Opis:
The Tunnel Contour Quality Index (TCI) is an index established by Kim and Bruland for an effective management of a tunnel contour quality. It is estimated on a basis of measurements of two contour profiles within a single blasting round, using a laser profiler. However, the representativeness of measurement results obtained that way for the assessment of a contour quality of the entire blasting round is disputable. Terrestrial laser scanning (TLS) technology, combined with available numerical surface modeling tools, enables development of three-dimensional models of a monitored surface. The article reports results of TCI calculations based on TLS data. The presented TLS technique is based not only on selected cross-sections of the tunnel contour but also on the description of the morphology of the tunnel contour surface. The case study concerns measurements of the "Mały Luboń" tunnel niche, located in Naprawa, Poland. The TCI values for three blasting rounds were determined in accordance with Kim and Bruland’s guidelines and were compared to TCI values determined with the proposed TLS technique. On a basis of this comparison, it can be concluded that the results obtained with the TLS technique are more reliable and representative for description of the contour quality of the entire blasting round than results obtained with the laser profiling technique.
Źródło:
Studia Geotechnica et Mechanica; 2021, 43, 3; 255-269
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Teleworking: the landscape, attractiveness and contours in The Lagos State, Nigeria
Autorzy:
Omolawal, Samuel Ayodeji
Powiązania:
https://bibliotekanauki.pl/articles/2233956.pdf
Data publikacji:
2023-03-31
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
Teleworking
landscape
Contour
attractiveness
organizations
Opis:
This paper investigated the landscape, attractiveness, and contours of teleworking in Lagos State, Nigeria. The study adopted purely qualitative techniques. The sample size was 40 participants purposively selected in 25 work organizations in both private and public sectors. Study instruments were Key Informant Interviews conducted with 20 Human Resource Practitioners and In-Depth Interviews conducted with 20 senior staff members of the selected organizations. Most organizations in Lagos were forced to adopt teleworking during or after the 2020 lockdown and its landscape in Lagos state has become wider and smoother. Study also revealed that teleworking is attractive to employees in terms of avoiding road/traffic challenges, enhances work-family balance and a viable option for individuals living with disabilities, pregnant and nursing mothers. To employers, it enhances business continuity, saves cost, and reduces concerns about disease and illnesses. The study identifies poor technological and infrastructural base, absence of labour policy framework, organizational policy, capacity building, data security issues as contours hindering effective teleworking in Lagos State. The practice of teleworking has been firmly established in Lagos State, Nigeria. Governments and Employers of labour stand to gain immensely from the adoption of teleworking if relevant social and organizational policies are made available, as well as making the operating economic and technological environments more conducive.
Źródło:
Reality of Politics; 2023, 23; 116-144
2082-3959
Pojawia się w:
Reality of Politics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of tillage translocation and tillage erosion on loess slope by contour mouldboard tillage
Autorzy:
Rybicki, R.
Obroślak, R.
Mazur, A.
Marzec, M.
Powiązania:
https://bibliotekanauki.pl/articles/124378.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
tillage erosion
mouldboard plowing
contour tillage
Opis:
This paper reports the results of tillage experiments that were set up to investigate the intensity of net soil displacement and the associated tillage erosivity for mouldboard tillage carried out in direction parallel to the contour lines (contour tillage). Tillage was performed with typical set of cultivation for an average farm on soil developed from loess located on a slope with 7.5 to 13.5% decrease. Aluminium cubes of 15 cm edge-length were used as tracers. The studies showed that average translocation of soil along the slope (perpendicular to tillage direction) was 0,35 m and 0,28 m respectively for tillage with downslope and upslope direction of soil overturning. It means that each year about 2,89 Mg per hectare of soil is net displaced in downslope direction per plough operation. The studies indicated that contour moldboard tillage is also an important factor in relief and soil transformation of eroded areas.
Źródło:
Journal of Ecological Engineering; 2016, 17, 5; 247-253
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agency suspensions of a back idler on angular oscillations of a tractor with the triangular caterpillar contour
Autorzy:
Varfolomeyev, V.
Pobedin, A.
Powiązania:
https://bibliotekanauki.pl/articles/246051.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
triangular caterpillar contour
suspension
back idler
modelling
Opis:
Main route of development of an agricultural tractor construction is raise of productivity of Caterpillar at the expense of increase in working speeds and tractors and tool width. Such direction of development demands simultaneous development of running systems and suspensions of caterpillars. The analysis of possibility of application of running system with triangular Caterpillar contour in farm tractors is in-process made. The mathematical model of the Caterpillar has been developed for research conducting realised in the environment of SIMULINK. Within the limits of conducting of the analysis of a construction of running system with triangular Caterpillar contour more effective construction of a suspension of a back idler in comparison with existing suspensions has been developed. On a designed construction of a suspension the patent is gained. The spent mathematical simulation of oscillations ofa case of a tractor with various arrangements of running systems and at tractor operation on the most widespread regimes has displayed efficiency as designed circuit design of a tractor with triangular contour, and a designed construction of a suspension of a back idler. Working out of a technique of optimisation of a suspension bracket of the developed running system as a whole under concrete conditions of operation is necessary.
Źródło:
Journal of KONES; 2009, 16, 1; 507-511
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research the possibilities of different filters and their application to image recognition problems
Autorzy:
Brytik, V.
Grebinnik, O.
Kobziev, V.
Powiązania:
https://bibliotekanauki.pl/articles/410672.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
image analysis
contour points
filter
convolution mask
Opis:
This article is devoted to the analysis from the viewpoint of accuracy allocation of contour points, and maintaining information about the distribution of non-derivative elements. In this article is researched the edge enhancement algorithms such as Prewitt, Sobel, Laplacian, Kirsch and evaluated their work, using some well-known performance measures. Also compared the efficacy of the researched algorithms, which was determined on the selected images with superimposed noise.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2016, 5, 4; 21-27
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agency of the suspension of the back idler on transport vibration of the tractor with triangular caterpillar contour
Autorzy:
Pobedin, A.
Varfolomeev, V.
Powiązania:
https://bibliotekanauki.pl/articles/244487.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
triangular caterpillar contour
suspension
back idler
modelling
Opis:
Recently leading producers of farm tractors even more often apply in running systems triangular caterpillar contour (TCC). In such running system one of the most problem knots is the back idler (BI) which is loaded by reaction from a caterpillar track and from weight of the casco having on this support. Thus the vertical component of reaction from a tension of a caterpillar track in addition loads with a tie-rod tangential force suspension bracket BI, thereby disturbing with a casco and reducing smoothness of a course of a tractor. Modelling and the analysis of dependence of affecting of vibration on a seat of the motor-man depending on applied type of a suspension bracket of a back idler are in-process executed. The analysis of parameters of smoothness of a course for the circuit design with triangular caterpillar contour and the offered suspension bracket of a back idler showed that in comparison with base configuration of a tractor of family VT On transport operations, at traffic on the soil road with the lifted tool, affectings on a seat of the operator decrease in 1,1-1,7 times in vertical and in 1.1-1.2 times in horizontal directions, at work with nominal loading, and also with Rkr=50 kN, on an eddish, provides minor alteration of smoothness of a course, the divergence of values of affecting on a seat of the operator, on the average, makes 12–19 %. In comparison with triangular caterpillar contour and "a classical" suspension bracket of a back idler, various displacement-yoke systems of a back idler, at work on transport operations, slightly influence a divergence of parameters of affecting on a seat of the operator which make 2.6 % and 4 % for vertical and horizontal affectings accordingly. At work with nominal loading on an eddish, affectings on a seat of the operator decrease in 1.7–2.7 times in vertical and in 1.4–1.8 times in horizontal directions and at work with draw-bar loading of Rkr=50 kN on an eddish, affectings on a seat of the operator decrease in 1.4–2.1 times in vertical and periodically increase on some speeds no more than by 30 % in a horizontal direction.
Źródło:
Journal of KONES; 2011, 18, 1; 447-452
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A comparative study on the method of extracting edge and contour information of multifunctional digital ship image
Autorzy:
Yin, F.
Powiązania:
https://bibliotekanauki.pl/articles/260262.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
multifunctional digital image
edge and contour information
extraction
Opis:
The result of the extraction of the edge and contour information of the multifunctional digital ship image directly affects the evaluation and recognition of the subsequent image quality. At present, the common method used to extract the edge contour information is based on the Canny operator, and there is a problem that the edge is not clear.In order to obtain more accurate edge information, a method of extracting edge and contour information of multimedia digital image based on multi-scale morphology is proposed. Firstly, the digital ship image is made double filter and the fuzzy threshold segmentation, and then the edge and contour information is extracted by multi-scale morphology. Experiments show that the proposed method can obtain more accurate edge information compared with the other methods.
Źródło:
Polish Maritime Research; 2017, S 3; 235-242
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heat Conduction Analysis of a Hollow Sphere made of Three Different Layers of Materials
Autorzy:
Khan, S. M. Khaled
Islam, Md. Mashrur
Powiązania:
https://bibliotekanauki.pl/articles/1062861.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Heat transfer
Material Science
Naiver-Strokes
Spherical Contour
Opis:
A systematic arrangement has been gotten for the transient issue of three-dimensional multilayer heat conduction in a circle with layers in the spiral course. The arrangement strategy can be connected to an empty circle or a strong circle made out of a few layers of different materials. By and large, the partition of factors connected to 3D round directions has interesting attributes because of the nearness of related Legendre works as the eigenfunctions. Additionally, an eigenvalue issues the azimuthal way likewise requires arrangement; once more, its properties are one of a kind inferable from periodicity the azimuthal way. In this way, broadening existing arrangements in 2D round directions to 3D circular directions isn't clear. In a round facilitate framework, one can explain a 3D transient multilayer heat conduction issue without the nearness of fanciful eigenvalues. A 2D tube shaped polar facilitate framework is the main other case in which such multidimensional issues can be tackled without the utilization of nonexistent eigenvalues. The nonappearance of nonexistent eigenvalues renders the arrangement philosophy fundamentally increasingly valuable for pragmatic applications. The strategy portrayed can be utilized for all the three kinds of limit conditions in the external and inward surfaces of the circle. The arrangement method is shown on an illustrative issue for which results are gotten.
Źródło:
World Scientific News; 2019, 127, 3; 248-259
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formulating an Optimal Drainage Model for the Calabar Area Using Cartographic Techniques
Autorzy:
Ugbong, I. A.
Budagov, I. V.
Powiązania:
https://bibliotekanauki.pl/articles/123872.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
drainage basin
contour maps
urban floods
storm water
erosion
Opis:
In order to achieve the task of formulating an optimal drainage model for the Calabar area, the Calabar drainage system was studied using some cartographic techniques to analyze its surface run-off and channel characteristics so as to determine how floods are generated. A morphological analysis was done, using detailed contour maps prepared for the study area. The “Blue line” and “contour crenulations” methods were used to recreate the expected run-off channels or drainage networks under natural non-urbanized conditions. A drainage structure with 6 major basins and 73 sub-basins was discovered. Existing storm drains were constructed without regards to this natural structure and so floods were generated.
Źródło:
Journal of Ecological Engineering; 2016, 17, 1; 1-9
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sand BOX-Hipsomaper – pierwszy krok w trzeci wymiar mapy
Autorzy:
Pytka, Paweł
Wojtanowicz, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/763084.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
SandBOX
contour line
map
education
sandBOX
izohipsa
mapa
edukacja
Opis:
The reading, analysis and interpretation of the contour line picture is causing pupils quite a lot of problems. They result above all from lack of abilities of getting the third dimension out of the two-dimensional plain. On the one side different perceptual predisposition of pupils affects such a state of affairs, on the other – insufficient methodological base, mainly in the form of interesting, attractive, inspiring and modern teaching tools. SandBOX seems to be a reply to this demand. SandBOX is a multimedia tool for generating and showing the picture of colorful map-contour line on the freely formed, interactive model of sand. The user immediately is seeing the threedimensional space created by himself in the form of colorful hypsometric map. This device can easily help understand the process of mapping and reading information about the terrain on the hypsometric map.
Czytanie, analiza i interpretacja rysunku poziomicowego nastręcza uczniom sporo trudności. Wynikają one przede wszystkim z braku umiejętności widzenia, a raczej wydobycia trzeciego wymiaru z płaszczyzny dwuwymiarowej. Tę zdolność trudno jednak rozwinąć bez zaangażowania wyobraźni przestrzennej, którą nie wszyscy uczniowie mają opanowaną w zadawalającym stopniu. Na taki stan rzeczy z jednej strony wpływa różna predyspozycja percepcyjna uczniów (czynniki wewnętrzne), a z drugiej – niedostateczne zaplecze metodyczne, m.in. w postaci ciekawych, inspirujących, atrakcyjnych i nowoczesnych pomocy dydaktycznych (czynniki zewnętrzne). Odpowiedzią na powyższe zapotrzebowanie wydaje się być „sandBOX”. „SandBOX” to multimedialne narzędzie do generowania i wyświetlania rysunku hipsometrycznego na dowolnie formowanym, interaktywnym modelu z piachu. Użytkownik (tu: uczeń i/lub nauczyciel), bawiąc się w piaskownicy w „rzeźbiarza terenu” natychmiast otrzymuje w wykreowanej przez siebie przestrzeni trójwymiarowej informację zwrotną w postaci układu poziomic zaopatrzonych w barwy. Rozwiązanie to w sposób prosty i przejrzysty wspomagać może niezmiernie trudny proces wprowadzania i etapowego kształtowania pojęcia poziomicy.
Źródło:
Annales Universitatis Mariae Curie-Sklodowska, sectio B – Geographia, Geologia, Mineralogia et Petrographia; 2015, 70, 1
0137-1983
Pojawia się w:
Annales Universitatis Mariae Curie-Sklodowska, sectio B – Geographia, Geologia, Mineralogia et Petrographia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optymalizacja parametrów dyskretyzacji w systemach diagnostyki obrazowej
Optimization of discretization parameters in the image diagnostics systems
Autorzy:
Owieczko, W.
Gilewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/159073.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Elektrotechniki
Tematy:
analiza obrazu
dyskretyzacja
elementy konturowe
image analysis
discretization
contour elements
Opis:
W artykule przedstawiono model analizy, pozwalający dokonać optymalizacji parametrów dyskretyzacji obiektów obrazu. Wyznaczono graniczne wartości współczynnika zmiennych konturowych i na ich podstawie określono zakresy elementarnych przyrostów powierzchni prze-działowych. Wykorzystując parametr modelu, zaproponowano algorytm oraz dokonano oceny wartości błędów dyskretyzacji powierzchni obiektów.
The model for analysis of optimization of objects discretization parameters was shown in the paper. Border values of contours coefficient variables were determined and on the basis of that the intervals of areas increases were defined. The algorithm was proposed on the strength of the models parameters. For the objects area, the estimations of discretization error value, were made.
Źródło:
Prace Instytutu Elektrotechniki; 2015, 269; 83-90
0032-6216
Pojawia się w:
Prace Instytutu Elektrotechniki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Linear-graph and contour-graph-based models of planetary gears
Grafowe i konturowe modele przekładni planetarnych
Autorzy:
Drewniak, J.
Zawiślak, S.
Powiązania:
https://bibliotekanauki.pl/articles/280029.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
contour equation method
Hsu's graph
f-cycle equation
gear ratio variants
Opis:
Analysis and synthesis of mechanisms are basic engineering tasks. They can suffer from errors due to versatile reasons. The graph-based methods of analysis and synthesis of planetary gears can be alternative methods for accomplishing of the afore mentioned tasks, which additionally allow for checking of their correctness. In the paper, two graph-based methods of analysis of planetary gears are discussed. An exemplary planetary gear is analysed by means of the graph-based methods as well as the traditional Willis method. Force and torque analyses were performed as well. An algorithmic approach – which implies from the graph models – allows for checking of versatile variants of designs in an easy and schematic way, which can lead to optimisation of the design within a conceptual phase of the design procedure.
Analiza i synteza mechanizmów są podstawowymi działaniami inżyniera. Narażone są one z różnych powodów na niezamierzone błędy. Metody analizy i syntezy przekładni planetarnych oparte na teorii grafów mogą być metodami alternatywnymi dla realizacji tych zadań, które pozwalają sprawdzić poprawność przeprowadzonych rozważań. W artykule rozważa się dwie metody grafowe modelowania przekładni. Przykładową przekładnię planetarną analizuje się tymi metodam, a wyniki porównuje się z metodą Willis'a. Przeprowadzono także analizę sił, momentów i sprawności. Ujęcie algorytmiczne – które wynika z modelowania grafami – pozwala na łatwe sprawdzanie wielu wariantów rozwiązań w łatwym ujęciu schematycznym, co wpływa na optymalizację rozważanych rozwiązań konstrukcyjnych w fazie koncypowania.
Źródło:
Journal of Theoretical and Applied Mechanics; 2010, 48, 2; 415-433
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Hurwitz – Radon matrices in shape representation
Autorzy:
Jakóbczak, D.
Powiązania:
https://bibliotekanauki.pl/articles/117952.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
shape representation
curve interpolation
contour reconstruction
shape coefficient
Hurwitz-Radon matrices
Opis:
Computer vision needs suitable methods of shape representation and contour reconstruction. One of them, invented by the author and called method of Hurwitz-Radon Matrices (MHR), can be used in representation and reconstruction of shapes of the objects in the plane. Proposed method is based on a family of Hurwitz-Radon (HR) matrices. The matrices are skew-symmetric and possess columns composed of orthogonal vectors. Shape is represented by the set of nodes. It is shown how to create the orthogonal and discrete OHR operator and how to use it in a process of shape representation and reconstruction. MHR method is interpolating the curve point by point without using any formula or function.
Źródło:
Applied Computer Science; 2010, 6, 1; 63-74
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza błędów graficznej interpretacji zarysów okrągłości
Error Analysis of Graphical Interpretation of Circularity Profile
Autorzy:
Nozdrzykowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/359431.pdf
Data publikacji:
2006
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
zarys kształtu
błędy
wykresy
EXPLO-SHIP 2006
shape contour
errors
graphs
Opis:
W artykule przedstawiono analizę i ocenę błędów geometrycznej interpretacji pomiarów zarysów okrągłości części maszyn, realizowanych metodami bezodniesieniowymi. Wyniki tej analizy i oceny znalazły zastosowanie przy korygowaniu wykresów biegunowych zarysu okrągłości.
This paper deals with an analysis and error estimation of geometrical interpretation of circularity profile of machinery parts using non-reference methods. The obtained results were applied in the correction of polar circularity profile graphs.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2006, 10 (82); 329-338
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tracking Exercise Motions of Older Adults Using Contours
Autorzy:
Havens, T C
Alexanderson, G L
Abbott, C C
Keller, J M
Skubic, M
Rantz, M
Powiązania:
https://bibliotekanauki.pl/articles/108766.pdf
Data publikacji:
2009
Wydawca:
Społeczna Akademia Nauk w Łodzi
Tematy:
Computer vision
human factors
human motion capture
swarm optimization
contour extraction
Opis:
In this paper we describe the development of a novel markerless motion capture system and explore its use in documenting elder exercise routines in a health club. This system uses image contour tracking and swarm intelligence methods to track the location of the spine and shoulders during three exercises — treadmill, exercise bike, and overhead lateral pull-down. Validation results show that our method has a mean error of approximately 2 degrees when measuring the angle of the spine or shoulders relative to the horizontal. Qualitative study results demonstrate that our system is capable of providing important feedback about the posture and stability of elders while they are performing exercises. Study participants indicated that feedback from our system would add value to their exercise routines.
Źródło:
Journal of Applied Computer Science Methods; 2009, 1 No. 2; 21-42
1689-9636
Pojawia się w:
Journal of Applied Computer Science Methods
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