FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2146890491> ?p ?o ?g. }

• W2146890491 endingPage "217" @default.
• W2146890491 startingPage "193" @default.
• W2146890491 abstract "Motion pictures taken at Duck Creek, a clear stream 6.5 m wide and 35 cm deep near Pinedale, Wyoming, provide detailed, quantitative information on both the modes of motion of individual bedload particles and the collective motions of large numbers of them. Bed shear stress was approximately 6 Pa (60 dynes cm −2 ), which was about twice the threshold for movement of the 4 mm median diameter fine gravel bed material; and transport was almost entirely as bedload. The displacements of individual particles occurred mainly by rolling of the majority of the particles and saltation of the smallest ones, and rarely by brief sliding of large, angular ones. Entrainment was principally by rollover of the larger particles and liftoff of the smaller ones, and infrequently by ejection caused by impacts, whereas distrainment was primarily by diminution of fluid forces in the case of rolling particles and by collisions with larger bed particles in the case of saltating ones. The displacement times averaged about 0.2−0.4 s and generally were much shorter than the intervening repose times. The collective motions of the particles were characterized by frequent, brief, localized, random sweep-transport events of very high rates of entrainment and transport, which in the aggregate transported approximately 70% of the total load moved. These events occurred 9% of the time at any particular point of the bed, lasted 1–2 s, affected areas typically 20–50 cm long by 10–20 cm wide, and involved bedload concentrations approximately 10 times greater than background. The distances travelled during displacements averaged about 15 times the particle diameter. Despite the differences in their dominant modes of movement, the 8–16 mm particles typically travelled only about 30% slower during displacement than the 2–4 mm ones, whose speeds averaged 21 cm s −1 . Particles starting from the same point not only moved intermittently downstream but also dispersed both longitudinally and transversely, with diffusivities of 4.6 and 0.26 cm 2 s −1 , respectively. The bedload transport rates measured from the films were consistent with those determined conventionally with a bedload sampler. The 2–4 mm particles were entrained 6 times faster on finer areas of the bed, where 8–16 mm particles covered 6% of the surface area, than on coarser ones, where they covered 12%, even though 2–4 and 4–8 mm particles covered practically the same percentage areas in both cases. The 4–8 and 8–16 mm particles, in contrast, were entrained at the same rates in both cases. To within the statistical uncertainty, the rates of distrainment balanced the rates of entrainment for all three sizes, and were approximately proportional to the corresponding concentrations of bedload." @default.
• W2146890491 created "2016-06-24" @default.
• W2146890491 creator A5003637494 @default.
• W2146890491 creator A5020576016 @default.
• W2146890491 creator A5028212121 @default.
• W2146890491 creator A5056001794 @default.
• W2146890491 creator A5068386965 @default.
• W2146890491 date "1988-07-01" @default.
• W2146890491 modified "2023-10-17" @default.
• W2146890491 title "Bedload transport of fine gravel observed by motion-picture photography" @default.
• W2146890491 cites W1479851317 @default.
• W2146890491 cites W1503902369 @default.
• W2146890491 cites W1608264002 @default.
• W2146890491 cites W1757182658 @default.
• W2146890491 cites W2299204847 @default.
• W2146890491 cites W67947589 @default.
• W2146890491 doi "https://doi.org/10.1017/s0022112088001831" @default.
• W2146890491 hasPublicationYear "1988" @default.
• W2146890491 type Work @default.
• W2146890491 sameAs 2146890491 @default.
• W2146890491 citedByCount "385" @default.
• W2146890491 countsByYear W21468904912012 @default.
• W2146890491 countsByYear W21468904912013 @default.
• W2146890491 countsByYear W21468904912014 @default.
• W2146890491 countsByYear W21468904912015 @default.
• W2146890491 countsByYear W21468904912016 @default.
• W2146890491 countsByYear W21468904912017 @default.
• W2146890491 countsByYear W21468904912018 @default.
• W2146890491 countsByYear W21468904912019 @default.
• W2146890491 countsByYear W21468904912020 @default.
• W2146890491 countsByYear W21468904912021 @default.
• W2146890491 countsByYear W21468904912022 @default.
• W2146890491 countsByYear W21468904912023 @default.
• W2146890491 crossrefType "journal-article" @default.
• W2146890491 hasAuthorship W2146890491A5003637494 @default.
• W2146890491 hasAuthorship W2146890491A5020576016 @default.
• W2146890491 hasAuthorship W2146890491A5028212121 @default.
• W2146890491 hasAuthorship W2146890491A5056001794 @default.
• W2146890491 hasAuthorship W2146890491A5068386965 @default.
• W2146890491 hasConcept C114793014 @default.
• W2146890491 hasConcept C121332964 @default.
• W2146890491 hasConcept C127313418 @default.
• W2146890491 hasConcept C13280743 @default.
• W2146890491 hasConcept C135343436 @default.
• W2146890491 hasConcept C139992725 @default.
• W2146890491 hasConcept C187320778 @default.
• W2146890491 hasConcept C20470049 @default.
• W2146890491 hasConcept C24890656 @default.
• W2146890491 hasConcept C2816523 @default.
• W2146890491 hasConcept C57879066 @default.
• W2146890491 hasConcept C65589250 @default.
• W2146890491 hasConceptScore W2146890491C114793014 @default.
• W2146890491 hasConceptScore W2146890491C121332964 @default.
• W2146890491 hasConceptScore W2146890491C127313418 @default.
• W2146890491 hasConceptScore W2146890491C13280743 @default.
• W2146890491 hasConceptScore W2146890491C135343436 @default.
• W2146890491 hasConceptScore W2146890491C139992725 @default.
• W2146890491 hasConceptScore W2146890491C187320778 @default.
• W2146890491 hasConceptScore W2146890491C20470049 @default.
• W2146890491 hasConceptScore W2146890491C24890656 @default.
• W2146890491 hasConceptScore W2146890491C2816523 @default.
• W2146890491 hasConceptScore W2146890491C57879066 @default.
• W2146890491 hasConceptScore W2146890491C65589250 @default.
• W2146890491 hasLocation W21468904911 @default.
• W2146890491 hasOpenAccess W2146890491 @default.
• W2146890491 hasPrimaryLocation W21468904911 @default.
• W2146890491 hasRelatedWork W1981192492 @default.
• W2146890491 hasRelatedWork W2030867430 @default.
• W2146890491 hasRelatedWork W2148621175 @default.
• W2146890491 hasRelatedWork W2312079912 @default.
• W2146890491 hasRelatedWork W2505748620 @default.
• W2146890491 hasRelatedWork W2747129372 @default.
• W2146890491 hasRelatedWork W2803216674 @default.
• W2146890491 hasRelatedWork W2952973441 @default.
• W2146890491 hasRelatedWork W634910204 @default.
• W2146890491 hasRelatedWork W3152078090 @default.
• W2146890491 hasVolume "192" @default.
• W2146890491 isParatext "false" @default.
• W2146890491 isRetracted "false" @default.
• W2146890491 magId "2146890491" @default.
• W2146890491 workType "article" @default.