Results 151 to 160 of about 5,866,207 (252)

Scour, Local and Critical Velocities at the Abutments on Plain Rivers

open access: yes
Local flow modification near engineering structures such as – local velocity, flow separation, circulation, vortex structures, and increased turbulence, leads to local scour near foundations.
Jaudzems, Gints, Gjunsburgs, Boriss
core  

Propagation modes of 3D scour below a submarine pipeline in oblique steady currents and waves

open access: yes, 2016
This paper presents experimental results on 3D scour propagation along a pipeline under oblique-incidence currents and waves. Different modes of 3D scour propagation were discovered after the local scour was initiated below the pipeline.
Cheng L, 臧志鹏, Tang G
core  

Availability of a Keystone Plant Resource Reduces Niche Overlap and Drives Distinct Species‐Specific Changes in Niche Breadth Among Small Rodents

open access: yesIntegrative Zoology, EarlyView.
We investigated how three rodent species respond to the seasonal availability of Araucaria angustifolia seeds. While Oligoryzomys spp. increased seed consumption and abundance during seed production, the more insectivorous Akodon paranaensis maintained a broader diet.
Adriana A. Perini, Emerson M. Vieira
wiley   +1 more source

Divergence Linked to Possible Ecological Speciation in Blind Mole Rats: Integration of Thermal Biology and Bite Force in the Upper Galilee Blind Mole Rat (Nannospalax galili)

open access: yesIntegrative Zoology, EarlyView.
Basalt‐dwelling blind mole rats maintain lower body temperatures, show greater post‐digging thermal increases, and dig more efficiently than those from rendzina soils. Although metabolic rates and bite force did not differ between populations, these thermal and physiological shifts align with the greater mechanical resistance and seasonal hypoxia of ...
Matěj Lövy   +6 more
wiley   +1 more source

Local Scour Development at Engineering Structures during Multiple Floods

open access: yes
Using the differential equation of equilibrium of the bed sediment movement in clear water, a method for calculating the scour development in time at engineering structures in river flow during floods has been elaborated.
Jaudzems, Gints, Gjunsburgs, Boriss
core  

Spatial Patterns of Avian Stable Isotopes Reveal Ecological Impacts of Climate and Land‐Use Change

open access: yesIntegrative Zoology, EarlyView.
Increased feather δ15N values with pasture coverage reveal an elevated baseline δ15N in grazing landscapes, while broader isotopic niches in farmland habitats reflect agricultural expansion's significant influence on resource use patterns of the avian community.
Yaohong Jia   +5 more
wiley   +1 more source

Local scour modeling on the basis of scour experiments [PDF]

open access: yesActa Scientiarum Polonorum. Seria: Architectura, 2019
openaire  

Riverbed Layering Impact on Scour at the Abutments

open access: yes
The damage of the engineering structures caused by scour leads to considerable economical and envi-ronmental losses. The local flow modification and its changes in time during the floods, as well as local geological conditions, as riverbed layering, type
Govša, Jeļena   +2 more
core  

Spectacle and Spy Stories: The 1954 Royal Commission on Espionage

open access: yesAustralian Journal of Politics &History, EarlyView.
ABSTRACT The Menzies government's 1954 royal commission, established to investigate Soviet espionage in Australia, is well known as the backdrop to the Labor Party split. It saw opposition leader H.V. Evatt's demise and ushered in an almost 20‐year period of Liberal Party governance.
Ebony Nilsson
wiley   +1 more source

SCOUR AT ELLIPTICAL GUIDE BANKS UNDER STRATIFIED BED CONDITIONS: EQUILIBRIUM STAGE

open access: yes
The scour development in time and the equilibrium stage of scour near abutments and guide banks with a uniform layer and stratified bed conditions have been studied.
Jaudzems, Gints   +2 more
core  

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