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Wyświetlanie 1-3 z 3
Tytuł:
Impact of e-commerce on external transport costs
Autorzy:
Milewski, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/135218.pdf
Data publikacji:
2019
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
efficiency of logistics processes
models of economic efficiency of transport
simulation
sustainable supply chain
e-commerce
costs of transport processes
external costs of transport
Opis:
The problem presented in this paper concerns the impact of e-commerce on transport costs, including external transport costs, compared with traditional shopping. E-commerce is a phenomenon of the modern economy that can significantly impact both the efficiency of the distribution of goods and on external transport costs. Although such a distribution system can increase the costs of freight transport to final consumers, it can also reduce traffic in cities and thus total external transport costs. In order to asses this impact, the author developed a simulation model and used it to conduct analyses. The analyses were based on available statistical data, data from the literature, and from the transportation market in Poland.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2019, 60 (132); 147-153
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis and evaluation of the use of LNG as a fuel in the Polish road transport in terms of minimizing energy losses
Autorzy:
Złoczowska, Ewelina
Ślączka, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/24202538.pdf
Data publikacji:
2022
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
LNG
road transport
Świnoujście terminal
minimization of energy losses
energy efficiency
fuel
Opis:
This study characterizes the distribution chain of liquefied natural gas (LNG) in Poland, using the terminal in Świnoujście as the “source of LNG”. The focus is primarily on the possibility of LNG distribution for road transport, taking into account the effective use of its energy potential. During the transport and storage of LNG it was found that the evaporation of LNG, the so-called boil-off gas (BOG), is a significant problem that leads to an increased pressure in the tank. Therefore, the possibility of using BOG in individual links of the LNG supply chain is indicated. One prospect is its compression to high pressure, which produces compressed natural gas (CNG) fuels. Thus, this paper specifies the influence of the initial BOG gas pressure on the unit compression work and analyses the change in the compression unit work, which depends on the final CNG fuel pressure, with a specific assumption for the BOG pressure.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2022, 71 (143); 22--30
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of demand characteristics on the profitability of a purchasing strategy
Autorzy:
Milewski, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/2033613.pdf
Data publikacji:
2021
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
demand characteristics
distribution of demand
economic efficiency of logistic processes
purchasing strategies
selection of transport modes
simulation
Opis:
The problem presented in this article concerns the impact of demand characteristics for consumer goods on the profitability of purchasing strategy, including the choice of both the source of supply and transport technology (deliveries in containers by sea, rail, air, and road transport). To assess the profitability of applying a specific strategy, the author developed a model to conduct simulations using the Monte Carlo approach for two demand distributions (Gaussian and Gamma), various sales fluctuations, and changes in demand during the delivery time. Calculations were carried out considering the costs of transport, storage, capital costs related to maintaining stocks, and costs of lost sales. The simulation results show that the greater the fluctuations and the lower the predictability of the demand, the greater the profitability of deliveries using air transport and local deliveries. However, concrete decisions depend on knowledge of the consequences of making these decisions and whether appropriate cost accounting is used in enterprises. The results of the calculations also indicate that the strategy of outsourcing production in low-cost countries will, in many cases, become unprofitable if production costs in these countries increase even slightly.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2021, 67 (139); 70-79
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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