Results 11 to 20 of about 8,161,217 (292)
, 2023 This paper presents two novel deterministic initialization procedures for k-means clustering based on a modified crowding distance. The procedures, named ck-means and fck-means, use more crowded points as initial centroids.
Abdesslem Layeb
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Applied Sciences, 2021 This paper deals with the optimization of the crossbars, parts of the existing frame of the experimental system of the Alternative SkidCar. This part plays a crucial role and is designed to enable and ensure reduced adhesion conditions between the ...
Petr Jilek +2 more
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Railway optimal network simulation for the development of regional transport-logistics system [PDF]
Экономика региона, 2013 The dependence of logistics on mineral fuel is a stable tendency of regions development, though when making strategic plans of logistics in the regions, it is necessary to provide the alternative possibilities of power-supply sources change together ...
Mikhail Borisovich Petrov +2 more
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, 2022 S k-means program was developed by a team led by Quang-Van DOAN at the Center for Computational Sciences (CCS), the University of Tsukuba. S k-means can be used by any person or entity for any purpose without any fee or charge.
Van Doan
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Comparison of selected parameters for evaluation of rail surface damage intensity
Acta Polytechnica CTU Proceedings, 2022 This paper deals with the issue of evaluation of a rail surface damage (RSD) intensity. Some ways of calculating parameters that represent the RSD are described. In this context, a multi-body model of a railway vehicle was created and several simulations
Jiří Šlapák, Tomáš Michálek
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Applied Sciences, 2021 Viscosity is considered to be a key factor in the quality of lubrication by oil and engine manufacturers and is therefore one of the most monitored parameters of lubricants. FTIR (Fourier-transform infrared) spectrometry in combination with Partial Least
Marie Sejkorová +3 more
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Peace as the purpose of the military [PDF]
Војно дело, 2021 The attitude of political system, and in a broader sense of political community, towards the military is largely defined by the understanding of the role and purpose that the military has in a society. The lack of the understanding of the true purpose of
Stanar Dragan
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Vehicle/track interaction under the conditions of high speed railway operation
Acta Polytechnica CTU Proceedings, 2021 This paper deals with the issue of dynamic effects of a high-speed railway vehicle on the track. Some aspects of vehicle/track interaction at higher speeds are described.
Jiří Šlapák, Tomáš Michálek
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On a Conjecture on the Symmetric Means [PDF]
, 2006 In this paper, we study some inequalities involving the symmetric means. The main result is a proof of a conjecture of Alzer et al.
Gao, Peng
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