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Wyszukujesz frazę "concentration of loading" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Resource-saving technologies of railway transportation of grain freights for export
Autorzy:
Kozachenko, D.
Vernigora, R.
Kuznetsov, V.
Lahvinova, N.
Rustamov, R.
Papahov, A.
Powiązania:
https://bibliotekanauki.pl/articles/223476.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
rail transportation
grain export
efficiency
consignor routing
concentration of loading
cluster analysis
transport kolejowy
eksport zboża
wydajność
Opis:
The research objective is to increase the efficiency of export railway transportation of grain freights in Ukraine by the introduction of consignor routing, a concentration of loading of grain on junction elevators and the organization of the movement of grain routes according to the schedule. According to the researchers in USA and EU, one of the effective directions for decreasing the expenses in a logistic chain of grain delivery to ports is consignor routing of railway transportation. Consignor routing of transportations of grain freights provides a concentration of their loading at junctions. The choice of junctions is proposed to be carried out on the basis of methods of the cluster analysis. For formation of regions for a concentration of grain loading the theory of sets and multicriteria optimization are used. As a result, on the basis of the modified simplex method are chosen 24 regions of possible concentration of grain loading that cover 70 stations on Ukrainian railways providing 7,5 million t consignor routing for grain in a year with minimal additional expenses. The assessment of the efficiency of railway transportation routing of grain freights is calculated with use of the developed simulation model. Researches showed that application of consignor routing allows to reduce a turn-round cycle for grain wagon in a logistic chain of deliveries up to 27%, and application of the schedule for consignor routes allows to reduce a turn-round cycle up to 62%, in comparison with transportation by car loading. Thus, as showed the calculations executed for one of the directions of grain transportation for export, the necessary operation park of grain-carrier wagons is reduced twice, thereby allowing to cut logistic expenses on a delivery of the Ukrainian grain through seaports to the world markets.
Źródło:
Archives of Transport; 2018, 45, 1; 63-74
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concentration of Phosphorus in the Blood of Young Men Aged 18–21 as an Informative Biochemical Marker for Assessing Adaptation Processes in Strength Fitness
Autorzy:
Chernozub, Andrii
Radchenko, Yurii
Dubachynskyi, Oleh
Titova, Hanna
Bodnar, Anton
Ambroży, Tadeusz
Mucha, Dariusz
Chaban, Ivan
Gartvich, Oleksandr
Powiązania:
https://bibliotekanauki.pl/articles/1832569.pdf
Data publikacji:
2017
Wydawca:
Wyższa Szkoła Bezpieczeństwa Publicznego i Indywidualnego Apeiron w Krakowie
Tematy:
phosphorus concentration
adaptive changes
intensity and amount of loading
strength fitness
strength possibilities
Opis:
The results of the research concerning further solution of the problem of finding informative markers for the diagnostic of the youth functional state which will allow to comprehensively evaluate the efficiency of the mechanisms for optimizing the training process in strength fitness are represented in this article. Two groups of young men aged 18 to 21 years participated in the research. Each group used our models of training for 3 months. The models differed significantly in terms of amount and intensity of loads. The results indicate that despite the use of sufficiently high parameters of loading intensity by the participants of the basic group under the experimental model of training, we have got a significant increase in their strength possibilities by 33.1% and their body girth parametres by 11.7% compared with the initial data. The dynamics of similar indicators fixed among the representatives of the control group also shows growth but almost twice less. At the same time, the results of monitoring the concentration of phosphorus in serum of the examined contingent, which plays an important role in energy metabolism during the process of muscle activity and reflects the mechanisms of oxidative phosphorylation, enable us to assume that the most pronounced adaptive changes in the organism during this training process are found in a group of people who have used the experimental model of fitness. This model is based on the mechanisms of reducing the duration of rest between the sets and the number of repetitions that affected the total amount of loading.
Źródło:
Security Dimensions; 2017, 24(24); 94-106
2353-7000
Pojawia się w:
Security Dimensions
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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