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Wyświetlanie 1-3 z 3
Tytuł:
Packaging Waste Research Responding to the Rise of Transport and Logistics Volumes during the Covid-19 Pandemic
Autorzy:
Pečman, Jan
Vrábel, Ján
Mašek, Jaroslav
Šedivý, Josef
Stopková, Mária
Bartuška, Ladislav
Powiązania:
https://bibliotekanauki.pl/articles/24200875.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
e-commerce
transport
logistics
shipping package
packaging waste
Covid-19
Opis:
The management of packaging material and its transport flow, including waste management, has become the focus of attention in recent decades, not least because of the emphasis on the requirements of sustainable development. Due to ever-increasing volume various types of packages, i. e. coming not only from industrial production, transport and trade, where its management is regulated, organized and controlled, but also packaging waste that is generated in households and where this waste ends at best sorted into containers according to material and in the worst case as municipal waste, or it is used as fuel in the incinerator. Author´s team defined the research idea in the direction of packaging waste, coming from online shopping, logistics and shipment distribution. The research was conducted over the year 2021 in the Czech Republic, during the Covid-19 pandemic, when online shopping was on its rise and, for many people, it became as a partly substitute for regular shopping in the future. In regard to an analytical part of the research, specific empirical methods were applied. The research hypothesis is evaluated statistically using a pairwise test. The presentation of the research per se is preceded by a literature review with citations of legislative articles and scientific papers related to the topic discussed. This section is followed by a description of the paradox in terms of online trading. The next part of the article presents the research findings, their summary and related conslusions.
Źródło:
Archiwum Motoryzacji; 2023, 101, 3; 50--66
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of Parameters to Model Seafarers’ Supply in Latvia
Autorzy:
Gailitis, R.
Fjodorova, A.
Powiązania:
https://bibliotekanauki.pl/articles/116496.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Maritime Education and Training (MET)
MET System in Latvia
Model Seafarers’ Supply
Automatic Identification System (AIS)
Package Error Rate (PER)
Determination of Parameters
Merchant Fleet
Inland Shipping
Opis:
Shortage of seafarers is important topic as maritime industry plays a key role for economy of the European Union. According to the latest assessment of economic value of shipping industry in 2012, the EU shipping industry is estimated to have directly contributed €56 billion to GDP, employed 590,000 people, and generated tax revenues of €6 billion. During recent years increasing attention is paid to the education and training of seafarers as the seafarers and their knowledge are essential to sustainable development of the maritime cluster, as indicated in the maritime strategy of European Union. Indicative estimates suggest there were almost 38,000 students/cadets in maritime academy – type training across the EU and Norway in 2012, a 11% increase from 2004. Understanding of current trends in the pool of seafarers is prerequisite for successful implementation of the strategy. Main obstacle for assessment of effectiveness is lack of possibilities to monitor contribution from maritime education institutions to current state of European seafarers’ pool. The aim of this article is to show parameters which should be taken into account to model seafarers’ supply in future. The parameters are discussed on the basis of information from the Seamen Registry of Maritime Administration of Latvia.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 2; 245-252
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
PER Estimation of AIS in Inland Rivers based on Three Dimensional Ray Tracking
Autorzy:
Ma, F.
Chu, X. M.
Liu, C. G.
Powiązania:
https://bibliotekanauki.pl/articles/117153.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ray Tracking
Three Dimensional Ray Tracking
Automatic Identification System (AIS)
Package Error Rate (PER)
Chinese Navigable Waterways
Inland Shipping
PER Estimation
Ray Tracking Model
Opis:
The Automatic Identification System (AIS) is an important maritime safety device, which is populous in inland rivers. Compared with that in open sea, the Package Error Rate (PER) of AIS in inland river has increased sharply due to its complex environment. With the help of hardware in loop simulation, it is possible to make statistical calculation on the PER under a given field strength and describe the data by quadratic rational fraction. Meanwhile, in the three dimensional software environments, the signal field strength is able to be calculated by the ray tracking method, which exhausts all the possible propagation paths, including direct way, reflection, diffractions, and the other medium attenuation matters. Beyond that, in the model, the propagation geography information in inland rivers is required to be simplified in some way, or the computation of the ray tracking is too hard to get. The paper set the Changjiang Wuhan channel as the field testing region, and all the deviations are less than 5% in sunny weather, which proves the method accurate and effective.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 1; 89-94
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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