Results 141 to 150 of about 40,753 (316)
Ungulate substrate use in fauna passages
Wildlife Biology, EarlyView.Fauna passages are increasingly constructed at major roads and railways to mitigate the negative effects of infrastructure and traffic on wildlife. The function of such passages depends on design, including the construction materials, soil, and vegetation.
Milla Niemi, Jan Olof Helldin
wiley +1 more source
Vibration of railway bridges in the audible frequency range
, 2009 The noise level associated with a train travelling on a bridge is normally greater than that for a train travelling on plain track. It is sometimes the bridge noise that causes the highest levels of disturbance to people in the vicinity or triggers ...
Herron, David
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Wildlife Biology, EarlyView.Urban green spaces experience a mix of natural and anthropogenic noises, which could disrupt the vocal communication of several species. This study investigated how such complex soundscapes affect the occurrence of Anaxipha pallidula, which communicates through calls, focusing on both sound level and quality.
Hiroki Mori, Takeshi Osawa
wiley +1 more source
Frontiers in Built EnvironmentThe construction of concrete-filled steel tube tied-arch bridges typically employs the “beam first and arch later” methodology. In this approach, tie beams are initially constructed on temporary supports, followed by the erection of the arch ribs.
Jiazhu Tong +3 more
doaj +1 more source
, 2014 Japan was the first country that built railway lines for high speed travel. Because of the mountainous terrain, the existing network consisted of 1,067 mm (3 ft 6 in) narrow gauge lines, which took indirect routes and could not be adapted to higher speeds. Consequently, Japan had a greater need for new high speed lines than countries where the existing
openaire +1 more source
The development of high speed in Spanish railways
Journal of Advanced Transportation, 1993 AbstractIn December 1988, the Spanish government decided to build a new line from Madrid to the French border (via Barcelona). A line that would link up with the new Madrid‐Seville line, having a total length (Seville‐French border) of approximately 1200 km.This paper succinctly describes the path followed by Spanish railways for the purpose of being ...
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Wildlife Biology, EarlyView.Exploration of new wildlife surveying methodologies that leverage advances in sensor technology and machine learning has led to tentative research into the application of seismology techniques. This, most commonly, involves the deployment of a footfall trap – a seismic sensor and data logger customised for wildlife footfall.
Benjamin J. Blackledge +4 more
wiley +1 more source
Bond Graph Based Stability Analysis of a Railway Traction System [PDF]
, 2005 This paper emphasises the interest of the Bond Graph approach for analysis and system design of heterogeneous and multi-field devices. In particular, the local stability analysis of non linear systems can be directly derived from the linearised Causal ...
Sareni, Bruno +3 more
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Wildlife Letters, EarlyView.Asiatic black bears in Russia face conservation threats such as habitat destruction and fragmentation, which exacerbate food shortages caused by crop failures. This study explores an innovative approach to rehabilitating bears that abandon hibernation in mid‐winter due to extreme exhaustion by providing supplemental food near their den sites.
Sergey A. Kolchin +2 more
wiley +1 more source
Dynamic analysis of the train-bridge interaction: an accurate and efficient numerical method
, 2008 The dynamic behavior of railway bridges carrying high-speed trains can be analyzed with or without the consideration of the vehicle's own structure.
Azevedo, A., Calcada, R., Neves, Sérgio
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