Informacja

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

Wyszukujesz frazę "industry;" wg kryterium: Temat


Tytuł:
A combined hydrocyclone - electrocoagulation treatment for different types of industrial wastewater
Autorzy:
Farghaly, Mohamed G.
Attia, H.
Saleh, H. A.
Ramadan, A. M.
Abdel Khalek, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/1448028.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
hydrocyclone
electrocoagulation
paper industry
iron industry
marble industry
granite industry
Opis:
Every year, a large amount of mineral processing wastewater is discharged from various industries into the environment which is considered a challenging task not only because of its large volume, but more importantly, its hazardous components, while its reuse as feedwater without proper treatments causes great harm to the final product of these industries. Cost-effective methods are required to treat a wide range of industrial wastewater in a diverse range of conditions. In this study, a combined hydrocyclone-electrocoagulation system is tried to treat the wastewater for industries with high water consumption and high pollutants such as paper industry, iron and metal forming industry, and marble industry. The effects of the hydrocyclone operational parameters, such as feed inlet pressure and diameter, vortex finder diameter, apex diameter, and feed solids content, were investigated. In the case, wastewater of paper industry, the following optimum conditions $(P = 4.5$ bar, $D_o = 15.8 mm, D_u = 6 mm, D_i = 4 mm and c_s = 2.3%)$ were achieved. An overflow of about 90.58% water recovery and 21.45% solid at 75.92% separation efficiency was obtained. The results showed that the hydrocycloneelectrocoagulation treatment has efficiently treated the three different types of industrial wastewater. The chemical oxygen demand (COD), biochemical oxygen demand (BOD), total solid (TS), total suspended solids (TSS), colour and turbidity, were reduced sharply and met the effluent discharge or reuse standards. Also, compared with the hydrocyclone-treated wastewater, the hydrocyloneelectrocoagulation-treated wastewater was found to be more enhanced.
Źródło:
Physicochemical Problems of Mineral Processing; 2021, 57, 2; 143-155
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
„Doregulacja”. Nieprecyzyjność prawa jako nowa przyczyna wyznaczania standardów postępowania przez organizacje branżowe w procesie samoregulacji
The imprecision of the law as a new source of setting standards of conduct by industry organizations in the process of self-regulation
Autorzy:
Sroka, Robert
Powiązania:
https://bibliotekanauki.pl/articles/653179.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
industry self-regulation
business ethics
business law
industry standard
industry organizations
Opis:
Over the last few years, a change has been noticed in the approach to shaping legal regulations in the economic field, and this has become the motive for a new approach to self-regulation. The change consists in the fact that the legislator mainly defines the purpose of a regulation, the regulatory framework, and the sanctions. However, it does not contain specific provisions indicating how an economic entity should fulfill the purpose of a given regulation. Thus, it leaves the broad sphere undefined. The legislator indicates what is expected, what the sanction for non-compliance will be, but it does not indicate exactly how business owners should achieve this compliance. The aim of the article is to describe a new trend of self-regulation, from the perspective of the role that industry organizations can play. Three examples of new acts in the field of commercial law are analyzed, which are characterized by a lack of clarity and are part of the case-law framework. Two initiatives of an industry organization which clarify unclear legal provisions are pointed out. The analyses make it possible to state that the industry organizations are able to take responsibility for interpretations of imprecise regulations in the field of commercial law. The organizations are also able to set standards of conduct and develop industry self-regulation so that they are respected by the industry and the legislator as a response to the new model of shaping the law.
Źródło:
Annales. Etyka w Życiu Gospodarczym; 2019, 22, 2; 71-83
1899-2226
2353-4869
Pojawia się w:
Annales. Etyka w Życiu Gospodarczym
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Consistency of DMAIC phases implementation on Six Sigma method in manufacturingand service industry: a literature review
Autorzy:
Trimarjoko, Aris
Purba, Humiras H.
Nindiani, Aina
Powiązania:
https://bibliotekanauki.pl/articles/1841407.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
six sigma
DMAIC
manufacturing industry
service industry
Opis:
High business competition demands business players to improve quality. The Six Sigma with DMAIC phases is a strategy that has proven effective in improving product and service quality. This study aims to find the consistency of DMAIC phases implementation and analyze the objective value in Six Sigma research. By using a number of trusted article sources during 2005 until 2019, this research finds that 72% research in manufacturing industry consistently implemented DMAIC roadmap especially in case study research type for problem-solving, while service industry pointed out the fewer number (60%). The causes of variations and defective products in the manufacturing industry are largely caused by a 4M 1E factor, while in service industry are caused by human behavior, and it’s system poorness. Both manufacturing & service industry emphasized standardization & monitoring to control the process which aimed at enhancing process capability and organization performance to increase customer satisfaction.
Źródło:
Management and Production Engineering Review; 2020, 11, 4; 34-45
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development policies for the Polish maritime industry
Autorzy:
Krzyżanowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/111543.pdf
Data publikacji:
2001
Wydawca:
Instytut Morski w Gdańsku
Tematy:
shipping industry
maritime industry
short sea shipping
Opis:
Polish shipping industry after period of recession is slowly regaining its former position in the European shipping market. The first step of the development is directed to the activation of cargo transport in the relations of the "short sea shipping" (SSS). The growing demands of the passenger traffic will be accomplished by ferry - services in the Baltic Area.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 2001, 28, 1; 5-13
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Energy Consumption in Agro-Industrial Wastewater Treatment Plant
Autorzy:
Dąbrowski, W.
Żyłka, R.
Rynkiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/124802.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
dairy industry
meat industry
wastewater
energy efficiency
Opis:
Energy consumption during waste water treatment is a very important factor affecting food industry plants. Apart from highly efficient treatment of dairy and meat sewage, a low energy consumption is required in order to lower its costs. During the research period, parameters of raw and treated sewage were tested (BOD,COD, N-total, P-total). Also, the energy consumption from selected processes as well as total consumption were measured. Indicators of energy consumption per m3 and removed load were calculated. It was found that biological treatment and aeration played the main role in energy consumption in both objects. It was respectively 40 and 47% for Bielmlek and JBB plants. The second biggest energy consuming stage of treatment in both objects was sludge processing. Energy required to process excessive sludge equaled 30% of the total energy usage in both plants. Energy consumption factors related to hydraulic flow gave results in the range from 2.05 to 3.3 kWhm-3and from 2.72 to 3.23 kWhm-3 for Bielmlek and JBB plants respectively. The research will be continued in order to optimize energy consumption, while retaining high efficiency treatment in food industry WWTPs. Finally, a mathematical model will be prepared for optimizing energy consumption in food industry WWTPs.
Źródło:
Journal of Ecological Engineering; 2016, 17, 3; 73-78
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Textile and Apparel Industry in Armenia: The Former Potential and the Perspectives for Future Development of the Industry
Przemysł tekstylny i odzieżowy w Armenii: dawny potencjał i perspektywy przyszłego rozwoju
Autorzy:
Greta, M.
Lewandowski, K.
Mamikonyan, G.
Powiązania:
https://bibliotekanauki.pl/articles/233964.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
Armenian industry
textile industry
apparel industry
Armenia
przemysł włókienniczy
strategia rozwoju
Opis:
The Armenian textile and apparel industry has showed very sharp ups and downs throughout its history. During the Soviet era, it was a leading branch of Armenian industry and a major supplier for the whole Soviet Union. Since the early 90s, the situation has dramatically changed. Analysis showed that during the transition from centrally planned to a market- -based economy, Armenia’s textile and apparel industry was nearly destroyed. Nowadays the industry, especially the apparel industry, is regarded as one of most promising sectors of the Armenian economy. This potential has also been discovered by Western and Russian institutions and enterprises, which have begun to invest heavily in this sector.
Przemysł tekstylny i odzieżowy w Armenii należał w przeszłości do kluczowych gałęzi gospodarki tego kraju. Transformacja systemowa przyniosła jednak utratę rynków zbytu oraz gwałtowny spadek produkcji i zatrudnienia. Dzięki pomocy zagranicznej i współpracy z krajami europejskimi następuje powolne odrodzenie tej branży. Obecnie nie jest ona konkurencyjna w skali światowej, ale istnieją przesłanki do rozwoju produkcji i zwiększenia eksportu w przyszłości. Pod koniec 2011 roku przemysł lekki został uznany przez rząd za jedną z priorytetowych gałęzi przemysłu, dla której została opracowana strategia rozwoju i plan działania. Przemysł odzieżowy jest najbardziej konkurencyjny spośród branż przemysłu lekkiego, dlatego też wsparcie dla niego będzie ważniejsze, niż inwestowanie w branżę tekstylną. Przeprowadzona analiza pokazała, iż armeńskie produkty tekstylne i odzieżowe są chętniej kupowane za granicą, aniżeli w kraju. Może to oznaczać, że produkcja w tym sektorze może być atrakcyjna dla zagranicznych firm ze względu na wysoką jakość i niskie koszty produkcji. Istnieją jednak dość istotne bariery rozwoju wynikające z sytuacji geopolitycznej, takie jak: brak dostępu do morza, blokada ze strony dwóch sąsiednich państw, a także rezygnacja z podpisania umowy stowarzyszeniowej z Unią Europejską. Niemniej jednak rząd podejmuje działania wspierające wejście produktów tekstylnych na rynki zagraniczne, rozwój zdolności eksportowych, a także dostęp do funduszy dla rodzimych przedsiębiorstw.
Źródło:
Fibres & Textiles in Eastern Europe; 2017, 2 (122); 10-15
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Floating buildings in the hotel, catering and water tourism industry in Poland – Business environment survey
Autorzy:
Piątek, Łukasz
Wycisk, Aleksandra A.
Parzych, Dariusz
Modrzejewska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/293197.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
catering industry
commercial buildings
floating buildings
floating architecture
hotel industry
water tourism industry
Opis:
The paper presents results from social research on the Polish business representatives potentially interested in using the floating buildings. The main purposes of the study were to assess the level of knowledge about floating buildings and diagnose stimulants and inhibitors of their development in the hotel, catering, and water tourism industry. Combining the quantitative and the qualitative methodology, research was conducted using an on-line survey (CAWI) and Focused Group Interviews (FGI). Both involved a non-probabilistic, purposive sampling to reach a specific subgroup of the industry: owners or employees of catering, hotel or water tourism companies having or considering having a floating building. The group included both new and long-standing companies using facilities on water or with direct and indirect access to the water. The study identified stimulating and inhibitory factors broken down into internal (context-independent) and external (context-dependent) conditions. Results show that in Poland floating commercial buildings are a niche topic but also a developable one. Although 71% of the respondents notice difficulties resulting from the insufficient infrastructure and 66.5% of them indicate the lack of legal regulations, they also see the potential of floating buildings: depending on the industry, from 90 to 95% respondents find them “definitely attractive” or “rather attractive”. The most common reason for rejecting floating development is the lack of attractive moorages in the area (43.5% answers).
Źródło:
Journal of Water and Land Development; 2020, 45; 100-106
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards a Self-Service Approach in the Printing Industry. An Investigation of State of the Art Technologies Along with Industry 4.0 Changes
Autorzy:
Urban, Wiesław
Łukaszewicz, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2064539.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
Industry 4.0
servitization
mass-customization
printing industry
Opis:
It is commonly believed that the current economic state of many countries is at the stage of the fourth industrial revolution. The changes resulting from this revolution are affecting all sectors of the economy, including the printing sector. The aim of this article is to analyse the state of the art technology in sheetfed printing and then to identify the challenges for further changes in the technology of this type of printing as well as technological and organisational changes in the processes of preparation and realisation of printing products. The article uses case studies of selected technologies offered by key technology suppliers in this area and case studies of selected business entities – manufacturers of printing products. The research approach adopted in this article also takes conceptual work into account. It was found that the observed changes in the printing industry are consistent with the assumptions of the Industry 4.0 concept in the aspect of the digitisation and mass personalisation of products, which leads to the thesis that in the future personalised digital printing ordered through self-service will play a dominant role.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2021, 4, 1; 232--244
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Support or Hindrance to Action? Spirit Fuel Blends in the Polish Oil Industry in the Interwar Period
Autorzy:
Grata, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/31342788.pdf
Data publikacji:
2022
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Tematy:
Second Republic
petroleum industry
spirit propellants
distillery industry
Opis:
The situation of the Polish oil industry after independence was difficult. Cut off from pre-war markets, the weakness of the internal market and increasing competition in external markets resulted in low profitability and a successive decline in production volumes. Competition also became a new threat from the state-backed distillery industry, which was pushing the concept of marketing fuel blends containing spirits. Their entry into the market, despite the objections of oil companies, meant that some gasoline had to be replaced with spirits and their ability to sell on the domestic market was limited. The negative effects of this were consistently raised by oil industry representatives. It wasn't until an improvement in the economy in the second half of the 1930s that a gradual change in the perception of spirit propelled blends appeared. Under conditions of growing domestic demand with relatively constant production volumes, a significant reduction in fuel exports became possible, and spirits were able to become a desirable additive to diesel blends, as evidenced by the increase in their purchases by oil companies.
Źródło:
Energy Policy Studies; 2022, 1 (9); 47-54
2545-0859
Pojawia się w:
Energy Policy Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie zasad ergonomii w przedsiębiorstwie - przegląd rozwiązań
Corporate initiatives in ergonomics – a review
Autorzy:
Słowikowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/180692.pdf
Data publikacji:
2004
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
ergonomia
przemysł samochodowy
przemysł piwowarski
przemysł obuwniczy
ergonomics
automotive industry
brewing industry
footwear industry
Opis:
W artykule przedstawiono przegląd rozwiązań w zakresie stosowania zasad ergonomii do poprawy warunków pracy w dużych przedsiębiorstwach. Omówiono rozwiązania stosowane w przemyśle samochodowym, piwowarskim i obuwniczym.
The article reviews corporate initiatives in ergonomics in large companies. Solutions in automobile industries, brewing and shoe manufacturing are discussed.
Źródło:
Bezpieczeństwo Pracy : nauka i praktyka; 2004, 4; 24-26
0137-7043
Pojawia się w:
Bezpieczeństwo Pracy : nauka i praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czwarta rewolucja przemysłowa - wizja przemysłu nowej generacji – perspektywa dla Polski
Fourth Industrial Revolution – Vision of New Generation Industry. Prospects for Poland
Autorzy:
Wieczorek, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/416919.pdf
Data publikacji:
2018-06
Wydawca:
Najwyższa Izba Kontroli
Tematy:
industrial revolution
new generation industry
industry 4.0
technological transformation of industry
development perspectives
Opis:
The fourth industrial revolution is bringing numerous ground-breaking digital technologies, whose broader application will cause significant changes in the manners and organisation of production, in accordance with the 4.0 industry concept. On the one hand, it will allow entrepreneurs to achieve competitive advantage on the globalised markets, and on the other hand – it will allow for meeting the needs of clients in a better way. Attempts of Polish entrepreneurs to achieve the 4.0 industry standards – for example due to the low level of production automation and robotization and financial barriers of investments in the field of advanced technologies – may turn out a very complex process in the national reality, which will call for the State’s support.
Źródło:
Kontrola Państwowa; 2018, 63, 3 (380); 89-115
0452-5027
Pojawia się w:
Kontrola Państwowa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mapowanie sektorów kreatywnych. W poszukiwaniu definicji i metody
Autorzy:
Wróblewska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1187215.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Tematy:
creative industry
cultural industry
mapping
film industry
audiovisual industry
film
Gdynia
film festival
film culture
film production
cinema
strategic analysis
Opis:
The author discusses a new method, rarely used in Poland so far − a method of mapping cultural industries and creative industries. The concept of mapping creative industries is founded on the Anglo-Saxon ground and goes beyond the usual plotting of the maps. This method enables countries, regions and cities to estimate the value of the creative sectors. It is based on determining a set of analytical methods for collecting and presenting information on the scale and the scope of the creative industries. In mapping, both quantitative and qualitative methods are used, as well as such sources of knowledge, as literature review, analysis of official government data, research on specific sectors, analysis of data from non-governmental sources, analysis of the industry informants and case studies. Mapping can be a valuable tool in lobbying the creative class, but its main purpose is to deepen the knowledge about this sector of the economy, which is still not sufficiently analyzed. The author considers and analyses not only mapping as a way to describe the dynamic sectors of culture, but also the very definition of mapping the creative sector, outlining the opinion and comments of Krzysztof Stachowiak, a researcher of problems of concentration of cultural industries. What serves as a frame of the article, is the description of the film industry growing currently in Gdynia and the ways in which this mini-industry can bedescribed using the principles of mapping creative industries.
Źródło:
Załącznik Kulturoznawczy; 2016, 3; 268-283
2392-2338
Pojawia się w:
Załącznik Kulturoznawczy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tendencja rozwoju kompleksu paliwowo-energetycznego na przykładzie przemysłu wydobywczego węgla
Development of the fuel and energy complex on the example of the coal-mining industry
Autorzy:
Magomet, R. D.
Mironenkova, N. A.
Powiązania:
https://bibliotekanauki.pl/articles/187607.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technik Innowacyjnych EMAG
Tematy:
przemysł węglowy
rozwój przemysłu
coal industry
industry development
Opis:
Artykuł jest poświęcony ogólnej ocenie współczesnej sytuacji branży węglowej. Określono w nim perspektywy rozwoju wydobycia węgla, kierunki doskonalenia oraz długoterminowe tendencje modernizacji sektora górniczo-wydobywczego.
The article is devoted to the assessment of modern condition of coal branch. Evaluate prospects for the development of coal mining, areas for improvement, long-term tendencies of modernization of the mining industry.
Źródło:
Mechanizacja i Automatyzacja Górnictwa; 2014, R. 52, nr 2, 2; 44-50
0208-7448
Pojawia się w:
Mechanizacja i Automatyzacja Górnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fall and Rise of Polish Shipbuilding Industry
Autorzy:
Wróbel, K.
Frankowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/116987.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
shipbuilding industry
shipyard
Polish shipbuilding industry
economic crisis
history
Opis:
The hereby paper describes a brief history of fall and rise of Polish shipbuilding industry in the 21st century and confronts stereotypes about it using data available from variety of statistical sources as well as impressions regarding its current and future condition presented by different authors, including industry representatives. The main goal of the article is the confrontation of political statement with the statistical data and current sectoral trends within the shipbuilding industry in Poland. Firstly, we introduce a historical background in a scope of economic transition in Poland. Then, socio-political issues are addressed together with economic condition using statistical data. Lastly, the newest trends and perspectives are analyzed. Eventually, we come to conclusion that despite encountering great difficulties and arguments about its collapse from political actors, shipbuilding sector did manage to retain its strong position in Polish economy.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 1; 151-156
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
EFFECTS OF INNOVATION ACTIVITY IN INDUSTRIAL ENTERPRISES IN EASTERN POLAND
Autorzy:
Szopik-Depczyńska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/489069.pdf
Data publikacji:
2015
Wydawca:
Instytut Badań Gospodarczych
Tematy:
innovation
industry
region
Opis:
Implementation of innovation in the field of product, process, organization and/or marketing, as part of the competitive struggle, is therefore linked to the achievement of various objectives and effects. The main objective of the study was to describe the relationship between the different effects of innovation activity and the extent of innovative activity of industrial enterprises, such as investment in innovation and implementation of innovative solutions. The survey had been conducted in years 2010-12 in 1067 industrial companies, operating in Eastern Poland (Warmia-Mazury, Podlasie, Lublin, Świętokrzyskie and Podkarpackie voivodeships). The methodological part of the analyses is based on the probability calculus - probit regression. Industrial enterprises in Eastern Poland indicated on improved quality of products offered on the market and increased range of products as the main effects of innovation activity. Analysis of innovation activity phenomena characterized in the article may have an impact on the perception of regional innovation policy, in terms of its nature and direction, as well as the vital question of the effectiveness of instruments of supporting innovativeness of industrial enterprises in Eastern Poland.
Źródło:
Oeconomia Copernicana; 2015, 6, 2; 53-65
2083-1277
Pojawia się w:
Oeconomia Copernicana
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