Results 11 to 20 of about 530,557 (235)

Tension of ground pressure on the foundations of railway catenary supports [PDF]

open access: yesE3S Web of Conferences, 2023
This paper presents the results of calculations of the values of soil pressure stresses on the base of the contact network supports by the developed program NDGFOKS in the programming language - C#.
Lesov K. S.   +3 more
doaj   +1 more source

Critical value in a SIR network model with heterogeneous infectiousness and susceptibility

open access: yesMathematical Biosciences and Engineering, 2020
Using the technique of edge-based compartmental modelling (EBCM) for the spread of susceptible-infected-recovered (SIR) diseases in networks, in a recent paper (PloS One, 8(2013), e69162), Miller and Volz established an SIR disease network model with ...
Shuixian Yan, Sanling Yuan
doaj   +1 more source

Accounting for space and uncertainty in real‐time location system‐derived contact networks

open access: yesEcology and Evolution, 2020
Point data obtained from real‐time location systems (RTLSs) can be processed into animal contact networks, describing instances of interaction between tracked individuals.
Trevor S. Farthing   +3 more
doaj   +1 more source

The additional consumption and savings of paid energy of traction substations when using on-board and stationary storage devices

open access: yesVestnik MGTU, 2023
In traction power supply systems for city electric transport without storage devices, a significant part of the recovery energy is usefully reused for the load in the process of inter-train flows along the contact network.
Katsay A. V.
doaj   +1 more source

Contact surround in opportunistic networks [PDF]

open access: yes21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2010
Is the temporal dimension alone sufficient to characterize contacts in opportunistic networks? Several studies analyze the temporal aspect of contacts with significant results concerning contact and inter-contact distributions. Nevertheless, only the temporal dimension does not give a complete overview of contact characterization.
Belblidia, Nadjet   +5 more
openaire   +1 more source

Study of electromagnetic processes in the system “contact network—electric locomotive” while reducing the minimum opening angle of the thyristors in the rectifier-inverter converter

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2020
A new method is proposed for increasing the power factor of an electric locomotive by changing the minimum opening angle of thyristors α0 of a rectifier-inverter converter.
Yu. M. Kulinich, D. Yu. Drogolov
doaj   +1 more source

Improvement of Video Measuring Systems for Electric Traction Network Diagnostics

open access: yesNauka ta progres transportu, 2021
Purpose. The purpose of the article is system analysis of the state of electric traction networks, as well as methods of complex diagnostics of the contact network from a moving laboratory car to increase the resolution capability of the systems for ...
І. В Доманський   +1 more
doaj   +1 more source

Phylodynamic Analysis Complements Partner Services by Identifying Acute and Unreported HIV Transmission

open access: yesViruses, 2020
Tailoring public health responses to growing HIV transmission clusters depends on accurately mapping the risk network through which it spreads and identifying acute infections that represent the leading edge of cluster growth.
Ellsworth M. Campbell   +9 more
doaj   +1 more source

Investigation of the time process of arc separation of the contact network positioner support structures [PDF]

open access: yesE3S Web of Conferences, 2023
The contact network is important for the traction power supply system to supply power to electric locomotives. It is significant to ensure that the contact network works properly.
Zhu Siyu
doaj   +1 more source

Exploring Relay Cooperation for Secure and Reliable Transmission in Two-HopWireless Networks

open access: yesEAI Endorsed Transactions on Scalable Information Systems, 2014
This work considers the problem of secure and reliable information transmission via relay cooperation in two-hop relay wireless networks without the information of both eavesdropper channels and locations.
Yulong Shen, Yuanyu Zhang
doaj   +1 more source

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