Results 81 to 90 of about 2,102 (256)

Effects of Engineered Dam Releases on Benthic Assemblages During Drought and Comparison With Unregulated Reaches

River Research and Applications, EarlyView.
ABSTRACT River regulation following damming is often associated with deleterious downstream effects, in large part due to reduced total discharge and disruption of seasonal flooding. These effects would be expected to be exacerbated by drought, particularly extended drought.
Jeffrey G. Holmquist, Jutta Schmidt‐Gengenbach   +1 more
wiley   +1 more source

Experimental study on scour around beveled submerged vanes

International Journal of Sediment Research
Submerged vanes are an effective approach to sediment management in river systems. Nowadays, submerged vanes are increasingly utilized in contemporary river engineering due to their convenient and cost-effective installation, which distinguishes them ...
Anirban Mandal, Zulfequar Ahmad, Erik Mosselman   +2 more
doaj   +1 more source

Fundamental Hydraulic Geometry Relations as an Accessible Tool for Identifying Channel Instability Over National Scales

River Research and Applications, EarlyView.
ABSTRACT The geometry of alluvial river channels can give insight into their stability, which can inform predictions of morphological change, flood risk and ecological degradation. Fundamental hydraulic geometry relations can be used to estimate the equilibrium dimensions of stable river channels by evaluating the balance between the erodibility of bed
David Whitfield, Edwin Baynes, Stephen Rice, Richard Jeffries   +3 more
wiley   +1 more source

Ecological dams: Concept, transformation, and developmental pathways of dam projects under the framework of river ethics

River, EarlyView.
This figure elaborates the scientific connotation and systematic construction path of ecological dams. Adopting a full‐cycle analysis framework centered on ecological impacts and benefits throughout the project lifecycle, it covers four key stages from planning to post‐completion, with core focuses on risk avoidance, impact control, ecological health ...
Jianhua Wang, Yunchang Zhang, Sainan Wu, Peng Hu   +3 more
wiley   +1 more source

Study on the Mechanism of Local Scour Around Bridge Piers

Journal of Marine Science and Engineering
Local scour around bridge piers poses significant challenges to the stability and safety of bridge structures. Local scour results from the combined effects of increased longitudinal flow velocity, the direct impact of the flow in front of the pier, and ...
Haiyang Dong, Zongyu Li, Zhilin Sun
doaj   +1 more source

Calculation of foundation scour for new debris flow grille dam with ground anchor and counterfort

Yantu gongcheng xuebao, 2018
The foundation play a significant role in the reliability of debris flow grille dam. Compared with the exposed structures, foundation scour under debris flows is more important. On the basis of a new proposed debris flow grille dam with ground anchor and
WANG Yong-sheng 1, 2, ZHANG Yan-jian 1, 2, ZHU Yan-peng 1, 2, YAN Cong 1, 2
doaj   +1 more source

Reusing health records from farm animal practices at scale: A potential complementary method of surveillance

Veterinary Record, EarlyView.
Abstract Background Disease in primary care frequently represents a surveillance blind spot, particularly for diseases affecting farm animals. Methods Electronic health records (EHRs) were collected from four farm animal veterinary practices in Wales (February 2024‒January 2025) as part of a pilot study.
Beverley Hopkins, Peers Davies, Peter‐John Noble, Anna Bunford‐Davies, April Lawson, Gina Pinchbeck, Ifan Lloyd, Robert Smith, Alan D. Radford   +8 more
wiley   +1 more source

Herbivore and mesocarnivore carcasses trigger divergent short‐term changes in soil properties

Journal of Animal Ecology, EarlyView.
Scavengers reshape nutrient cycles in soils under carrion. Compared to herbivore carcasses, smaller but longer‐lasting carnivore remains boost nutrient levels and microbial activity in dry soils. Abstract Animal corpses act as pulses of organic matter (OM) and serve a key zoogeochemical role by providing localized nutrient inputs to soils and thereby ...
Adrián Colino‐Barea, Fuensanta García‐Orenes, Zebensui Morales‐Reyes, Moisés Gonzálvez, Carlos Martínez‐Carrasco, Marcos Moleón, Daniel Redondo‐Gómez, Evan A. N. Marks, Minerva García‐Carmona, Victoria Arcenegui, José Carlos Huerta‐del‐Bosque, Adrián Orihuela‐Torres, Santiago Soliveres, Sofia Albolafio, Esther Sebastián‐González, José Antonio Sánchez‐Zapata   +15 more
wiley   +1 more source

Scour near Offshore Monopiles, Jacket-Type and Caisson-Type Structures

Journal of Marine Science and Engineering
Scour near various offshore structures (monopile, caisson foundation and jacket structure) was studied by performing laboratory flume tests and numerical solutions with a semi-empirical model (SEDSCOUR) and a sophisticated 2DV model (SUSTIM2DV).
Leo C. van Rijn, Nathanael Geleynse, Luitze Perk, Doke Schoonhoven   +3 more
doaj   +1 more source

Torpor‐assisted migration: Regular use of shallow torpor reduces rest‐phase energy expenditure for songbirds during migration

Journal of Animal Ecology, EarlyView.
Migrating songbirds regularly use shallow torpor (up to 98% of birds for some species) to save energy (up to 42%) during inactive periods. This Ruby‐crowned Kinglet Corthylio calendula that was captured after a spring snowstorm highlights the value of being able to save energy when encountering unfavourable conditions.
Ryan A. C. Leys, Lily Hou, Liam P. McGuire   +2 more
wiley   +1 more source