Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Mike McHenry"'
Autor:
Stuart H. Munsch, Mike McHenry, Martin C. Liermann, Todd R. Bennett, John McMillan, Raymond Moses, George R. Pess
Publikováno v:
Frontiers in Ecology and Evolution, Vol 12 (2024)
Externí odkaz:
https://doaj.org/article/00e0df9f383e477d96d9bfba240d0019
Autor:
Stuart H. Munsch, Mike McHenry, Martin C. Liermann, Todd R. Bennett, John McMillan, Raymond Moses, George R. Pess
Publikováno v:
Frontiers in Ecology and Evolution, Vol 11 (2023)
Human stressors block, eliminate, and simplify habitat mosaics, eroding landscapes’ life history diversity and thus biological resilience. One goal of restoration is to alleviate human stressors that suppress life history diversity, but life histor
Externí odkaz:
https://doaj.org/article/a8addafea9da422693d93ad30bb125a0
Autor:
Jeffrey J. Duda, Christian E. Torgersen, Samuel J. Brenkman, Roger J. Peters, Kathryn T. Sutton, Heidi A. Connor, Phil Kennedy, Stephen C. Corbett, Ethan Z. Welty, Anna Geffre, Josh Geffre, Patrick Crain, Dave Shreffler, John R. McMillan, Mike McHenry, George R. Pess
Publikováno v:
Frontiers in Ecology and Evolution, Vol 9 (2021)
The removal of two large dams on the Elwha River was completed in 2014 with a goal of restoring anadromous salmonid populations. Using observations from ongoing field studies, we compiled a timeline of migratory fish passage upstream of each dam. We
Externí odkaz:
https://doaj.org/article/0179d7b29df449b2a753c9410f0aacc8
Publikováno v:
2020 Joint Rail Conference.
Elastic fasteners have been shown to reduce gage widening and decrease the potential for rail roll compared to conventional cut-spike-only systems. For this reason, elastic fastening systems have been installed in high-degree curves on many North Ame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1b763cfddf9deb6d5fecbe6cd2edcd3
https://doi.org/10.1115/jrc2020-8057
https://doi.org/10.1115/jrc2020-8057
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2545:11-19
Rail seat deterioration (RSD) of concrete ties is manifested by the loss of concrete material in the rail seat area supporting the rail. This failure mode can lead to track that performs poorly and, in extreme cases, can result in the loss of rail cl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b81d6c9468ff9443d5366d24d2f3bf27
https://doi.org/10.3141/2545-02
https://doi.org/10.3141/2545-02
Publikováno v:
2018 Joint Rail Conference.
Cut spike fasteners, used with conventional AREMA rolled tie plates and solid sawn timber ties, are the most common tie and fastener system used on North American freight railroads. Cut spikes are also used to restrain tie plates that incorporate an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3174b54c9834c391d5db0e337aa47418
https://doi.org/10.1115/jrc2018-6185
https://doi.org/10.1115/jrc2018-6185
Autor:
Marcus S. Dersch, Mike McHenry, Matthew J. Greve, J. Riley Edwards, Christopher P. L. Barkan, Hugh B. Thompson, Theodore R. Sussmann
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2476:1-7
One of the more critical failure modes of concrete crossties in North America is the degradation of the concrete surface at the crosstie rail seat, also known as rail seat deterioration (RSD). Loss of material beneath the rail can lead to wide gage,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4626b5dfed13fb3947e9f4f52e0d0725
https://doi.org/10.3141/2476-01
https://doi.org/10.3141/2476-01
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2476:23-31
The pressure distribution at the ballast–tie interface of conventional railroad track plays a key role in overall track support. Loads exceeding the strength of the ballast or tie can contribute to degradation of track quality. In this study, matri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c96dbe482fa759ecba491860359110a2
https://doi.org/10.3141/2476-04
https://doi.org/10.3141/2476-04
Publikováno v:
Sustainable Civil Infrastructures ISBN: 9783319616261
Identifying the level of ballast degradation generally involves ballast sampling and mechanical sieve analyses in the laboratory, which can be time consuming, laborious and costly. As an automated alternative, image processing techniques has the pote
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb11fd5f34f3eee6a772a46b3c6b4b9c
https://doi.org/10.1007/978-3-319-61627-8_8
https://doi.org/10.1007/978-3-319-61627-8_8
