Results 11 to 20 of about 116,927 (218)

Effects of muddy water irrigation with different sediment gradations on nitrogen transformation in agricultural soil of Yellow River Basin

open access: yesWater Science and Engineering, 2022
Muddy water irrigation has been widely practiced in the Yellow River Basin for agricultural production and is an important method of economical and intensive utilization of water resources.
Li-na Chen   +6 more
doaj   +1 more source

Enhanced Degradation of Waste Activated Sludge in Microbial Electrolysis Cell by Ultrasonic Treatment

open access: yesFrontiers in Microbiology, 2019
This study investigates the feasibility of ultrasonic pretreatment for improving treatment efficiency of waste activated sludge (WAS) in microbial electrolysis cell (MEC).
Kai Hu   +6 more
doaj   +1 more source

Experimental Study on the Curing Effect of Dredged Sediments with Three Types of Curing Agents

open access: yesMATEC Web of Conferences, 2016
Sediment solidification technology is widely used to dispose dredged sediment, three types of curing agents were used in this study to solidified the dredged sediment from shallows in Nantong with three types of curing agents: JY, ZL and FJ.
Yan Lei-Ming   +4 more
doaj   +1 more source

Rhizosediments of Salicornia tegetaria Indicate Metal Contamination in the Intertidal Estuary Zone

open access: yesFrontiers in Environmental Science, 2020
Metal pollution is a well-known anthropogenic impact of highly developed estuaries, with dire consequences to the ecosystem. This study investigated the metal concentrations (Al, Cr, Cu, Fe, Mn, Ni, Pb, Zn) in the sediment colonized by Salicornia ...
Marelé A. Nel   +7 more
doaj   +1 more source

Differences in hydrogeochemistry between shallow and deep aquifers in the Baiyangdian basin, China [PDF]

open access: yesE3S Web of Conferences, 2019
Groundwater is the dominant long-term water resource for agricultural irrigation and industrial production in the Baiyangdian basin, North China Plain. Groundwater and pore-water were investigated to evaluate chemical evolution and geochemical processes ...
Guo Huaming   +6 more
doaj   +1 more source

Interactive effects of salinity, temperature and food web configuration on performance and harmfulness of the raphidophyte Heterosigma akashiwo

open access: yesFrontiers in Marine Science, 2023
The cosmopolitan raphidophyte Heterosigma akashiwo commonly forms harmful algal blooms (HABs) in diverse estuaries discharging into Algoa Bay, South Africa, potentially leading to hypoxia, fish kills and a decline in key primary consumers.
Jakob Karl Giesler   +6 more
doaj   +1 more source

From offshore to onshore: multiple origins of shallow-water corals from deep-sea ancestors. [PDF]

open access: yesPLoS ONE, 2008
Shallow-water tropical reefs and the deep sea represent the two most diverse marine environments. Understanding the origin and diversification of this biodiversity is a major quest in ecology and evolution.
Alberto Lindner   +2 more
doaj   +1 more source

Laboratory simulation of soil respiration response to environmental conditions in intertidal zones of Jiangsu Province, China

open access: yesWater Science and Engineering, 2022
As major contributor to the blue carbon sink, intertidal zones play a crucial role in the global carbon cycle. In recent years, more attention has been given to the carbon cycle in intertidal wetlands.
Peng Wang   +4 more
doaj   +1 more source

Tufa stromatolite ecosystems on the South African south coast

open access: yesSouth African Journal of Science, 2014
Following the first description of living marine stromatolites along the South African east coast, new investigations along the south coast have revealed the occurrence of extensive fields of actively calcifying stromatolites.
Renzo Perissinotto   +7 more
doaj   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

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