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User habits and multimodal route planning

Katona G., Juhasz J.

Production Engineering Archives

2017

Vol. 16

22--27

The results of route planning researches are monitored by logistic and automotive industries. The economic aspects of the cost saving are in the focus of the attention. An optimal route could cause time or fuel savings. An effective driving or an optimal route is a good basis to achieve an economical aim. Moreover the spread of new automotive solutions especially in case of electric cars the optimisation has particular significance regarding the limited battery storage. Additionally the autonomous car development could not be neglected. As a result the society could expect safer roads, better space usage and effective resource management. Nevertheless the requirements of users are extremely diverse, which is not negligible. Supporting these aims, in this paper the connection between the multimodal route planning and the user requirements are investigated. The examination is focused to a sensitivity analysis and a survey to evaluate the data and support the settings of a user habit effect to the final route.

Diffusion in nanoscale

Beke D. I., Erdelyi Z., Szabo I. A., Langer G. A., Katona G., Cserhati C.

Archives of Metallurgy and Materials

2004

Vol. 49, iss. 2

219-235

Mass transport on nanoscale has specific features because of the presence of high number of grain- and interphase boundaries, as well as because of the fundamental problems related to the very short diffusion distances. In the first part examples on the changes (as the micro-metre scale is reduced to nanometre dimensions) of the overall mass transport due to the boundary effects are exposed. Then examples of processes, in which the diffusion coefficient depends strongly on the concentration (non-linearity) and the diffusion distance is typically few nanometres, will be discussed.

Opis transportu masy rozpatrywanego w skali nano posiada swoją specyfikę ze względu na znaczną ilość granic tak miedzyziarnowych jak i miedzyfazowych oraz na istotne problemy związane z bardzo niewielką drogą dyfuzji. W pierwszej części opracowania przedstawiono przykłady zmian transportu masy zwiazanych z efektami granicznymi. Następnie dyskutowane są przykłady procesów, w których współczynnik dyfuzji silnie zależy od stężenia i gdy typowa droga dyfuzji wynosi kilka nanometrów.