Results 11 to 20 of about 3,483,721 (310)
Worldline approach to semi-classical conformal blocks [PDF]
, 2015 We extend recent results on semi-classical conformal blocks in 2d CFT and their relation to 3D gravity via the AdS/CFT correspondence. We consider four-point functions with two heavy and two light external operators, along with the exchange of a light ...
Hijano, Eliot +2 more
core +2 more sources
New and Additional Distribution Records for Several Rare Mayflies (Ephemeroptera) in Wisconsin [PDF]
, 2017 One nymph and one exuviae of Acanthametropus pecatonica were collected in June 1991 from the Black River and Chippewa River, respectively. These specimens extend the known range of this rare species in Wisconsin to three large Mississippi River ...
Lillie, Richard A
core +2 more sources
The river model of black holes [PDF]
, 2006 This paper presents an under-appreciated way to conceptualize stationary black holes, which we call the river model. The river model is mathematically sound, yet simple enough that the basic picture can be understood by non-experts.
Hamilton, Andrew J. S., Lisle, Jason P.
core +1 more source
River, 2023 Morphometric analysis is crucial for advancing in various fields, including geomorphology, hydrology, environmental sciences, and geological studies. The objective of the present study is to understand the hydrological and morphological characteristics ...
Pawan K. Gautam
doaj +1 more source
River, 2023 Due to the diversity of climate and environment in China, the frequent occurrence of extreme rainfall events has brought great challenges to flood prevention. Water level measurement is one of the important research topics of flood prevention.
Xiaolong Wang +3 more
doaj +1 more source
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012 River history is reflected in the nature of the sediments carried and deposited over time. Using examples drawn from around the world, this account illustrates how river sediments have been used to reconstruct past environmental changes at a variety of scales in time and space. Problems arising from a patchy alluvial record and from influences external
openaire +3 more sources
Nitrate sources and dynamics in a salinized river and estuary : a δ15N-NO₃⁻ and δ18O-NO₃⁻ isotope approach [PDF]
, 2014 To trace NO3- sources and assess NO3- dynamics in salinized rivers and estuaries, three rivers (Haihe River: HH River, Chaobaixin River: CB River and Jiyun River: JY River) and two estuaries (HH Estuary and CJ Estuary) along the Bohai Bay (China) have ...
Boeckx, Pascal, Wang, Z, Xue, Dongmei
core +3 more sources
Flow resistance law in channels with fully submerged and rigid vegetation
River, 2023 The estimate of flow resistance in vegetated channels is a challenging topic for programming riparian vegetation management, controlling channel conveyance and flooding propensity, for designing soil bioengineering practices.
Alessio Nicosia +4 more
doaj +1 more source
The impact of significant input of fine sediment on benthic fauna at tributary junctions: a case study of the Bermejo-Paraguay River confluence, Argentina [PDF]
, 2014 This study examines the morphological features, suspended sediment inputs and hydraulic conditions within a large river in association with ecological patterns before and after a tributary confluence.
Amsler, Mario L. +8 more
core +2 more sources