Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Radosław PUKA"'
Autor:
Jerzy Duda, Szymon Fierek, Marek Karkula, Piotr Kisielewski, Radosław Puka, Adam Redmer, Iwona Skalna
Publikováno v:
Archives of Transport, Vol 65, Iss 1, Pp 27-38 (2023)
Scheduling buses in public transport systems consists in assigning trips to vehicle blocks. To minimize the cost of fuel and environmental impact of public transport, the number of vehicle blocks used should be as small as possi-ble, but sufficient t
Externí odkaz:
https://doaj.org/article/457e1d5b013a4ccbb4df55618dcd7635
Autor:
Jerzy DUDA, Marek KARKULA, Radosław PUKA, Iwona SKALNA, Szymon FIEREK, Adam REDMER, Piotr KISIELEWSKI
Publikováno v:
Transport Problems, Vol 17, Iss 4, Pp 137-149 (2022)
This paper presents the problem of public transport planning in terms of the optimal use of the available fleet of vehicles and reductions in operational costs and environmental impact. The research takes into account the large fleet of vehicles of v
Externí odkaz:
https://doaj.org/article/ec2b7a213e2943c28dc6ab63aa19d99d
Publikováno v:
International Journal of Energy Economics and Policy, Vol 13, Iss 2 (2023)
The COVID-19 pandemic has caused turbulence in many areas of the global economy. It also contributed to an increase in volatility on the energy commodities market. This spilled over into the derivatives market, particularly the crude oil futures mark
Externí odkaz:
https://doaj.org/article/e340468c15f642feb09da10a8c3b997d
Publikováno v:
Energies, Vol 16, Iss 8, p 3486 (2023)
The high volatility of commodity prices and various problems that the energy sector has to deal with in the era of COVID-19 have significantly increased the risk of oil price changes. These changes are of the main concern of companies for which oil i
Externí odkaz:
https://doaj.org/article/df73d7294c02460aab791ac8a54a6ce5
Autor:
Radosław Puka, Stanislaw Jedrusik
Publikováno v:
Journal of Theoretical and Applied Electronic Commerce Research, Vol 16, Iss 4, Pp 670-681 (2021)
Modern IT systems collect detailed data on each activity, transaction, forum entry, conversation and many other areas. The availability of large data volumes in the business, industry and research fields opens up new opportunities for the empirical v
Externí odkaz:
https://doaj.org/article/e5eb5a539b6b40358cd805555b0f0e8a
Publikováno v:
Energies, Vol 14, Iss 24, p 8494 (2021)
During the COVID-19 pandemic, uncertainty has increased in many areas of both business supply and demand, notably oil demand and pricing have become even more unpredictable than before. Thus, for companies that buy large quantities of oil, effective
Externí odkaz:
https://doaj.org/article/b8e5a3e116154a4b8dae2e1b2038f097
Publikováno v:
Energies, Vol 14, Iss 11, p 3308 (2021)
Despite the growing share of renewable energy sources, most of the world energy supply is still based on hydrocarbons and the vast majority of world transport is fuelled by oil products. Thus, the profitability of many companies may depend on the eff
Externí odkaz:
https://doaj.org/article/b8a08f2387204008ba1bd5b941688919
Autor:
Radosław Puka, Bartosz Łamasz
Publikováno v:
Energies, Vol 13, Iss 17, p 4359 (2020)
Oil price changes significantly influence proper functioning of the entire world economy, which entails the risk of losses. One of the possible ways to reduce this risk is to use some dedicated risk management tools, such as options contracts. In thi
Externí odkaz:
https://doaj.org/article/0d53b7c34f99425d8631aa85ebbc466f
Publikováno v:
Annals of Computer Science and Information Systems.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b2e1785a04d100dfb3f148ccea65638
https://doi.org/10.15439/2022f103
https://doi.org/10.15439/2022f103
Publikováno v:
2022 International Conference on Electrical, Computer and Energy Technologies (ICECET).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8e39407008e8aa7cf12884524d152a5
https://doi.org/10.1109/icecet55527.2022.9872559
https://doi.org/10.1109/icecet55527.2022.9872559