Results 31 to 40 of about 30,424 (262)

A integrated method to quantify flow exchanges between surface water and groundwater: take Suzhou section of the Xinbian River as an example

open access: yesShui kexue jinzhan, 2022
In order to improve the calculation accuracy of flow exchange between groundwater and surface water, a method that integrates the hydraulic connection and hydraulic head difference between groundwater and surface water, water temperature, Radon-222 and ...
Longcang SHU   +6 more
doaj   +1 more source

Experimental Study of Groundwater Flow

open access: yesInternational Journal of Online and Biomedical Engineering (iJOE), 2009
This paper describes an experimental setup for groundwater flow studies with small scale models, developed for the Soil Mechanics course offered to Civil Engineering Master students at FEUP. Relevant quantities, such as the piezometric head and total discharge, can be measured, while flow lines may be visualized.
José Couto Marques   +1 more
openaire   +2 more sources

Reconfigurable Au Nanoparticle Monolayers on Regenerated Cellulose Hydrogels: Highly Sensitive SERS Detection of Polystyrene Micro/Nanoplastics With Interpretable Deep Learning

open access: yesAdvanced Functional Materials, EarlyView.
A regenerated cellulose (RC) hydrogel‐based SERS substrate integrating a Marangoni‐transferred gold nanoparticle self‐assembled monolayer (Au‐SAM) is fabricated. Reswelling‐induced hotspot formation enhances polystyrene micro/nanoplastics (PS MNPs) detection in complex matrices, providing reproducible, high‐throughput SERS signals across diverse ...
Youngho Jeon   +5 more
wiley   +1 more source

Investigating riparian groundwater flow close to a losing river using diurnal temperature oscillations at high vertical resolution [PDF]

open access: yesHydrology and Earth System Sciences, 2012
River-water infiltration is of high relevance for hyporheic and riparian groundwater ecology as well as for drinking water supply by river-bank filtration. Heat has become a popular natural tracer to estimate exchange rates between rivers and groundwater.
T. Vogt, M. Schirmer, O. A. Cirpka
doaj   +1 more source

Defect‐Engineered Microwave‐Responsive Ni@C Composites From Waste PET for Catalytic Plastic Upcycling

open access: yesAdvanced Materials, EarlyView.
A circular upcycling strategy transforms waste poly(ethylene terephthalate) bottles into microwave‐responsive Ni@C catalyst featuring lattice‐distorted nickel cores and defective carbon shells. These strain‐rich heterointerfaces enhance dielectric loss and promote localized microwave hotspots, accelerating peroxymonosulfate activation and polymer‐chain
Xiao Lu   +7 more
wiley   +1 more source

Going with the Flow: Marketing Instream Flows and Groundwater

open access: yes, 2020
Columbia Journal of Environmental Law, Vol 13 No 2 (1988): Volume 13 ...
Anderson, Terry L., Leal, Donald R.
openaire   +1 more source

Efficient Concentration and Complete Destruction of Short‐Chain and Emerging PFAS in Contaminated Water via Integrated Interface Engineering‐Enhanced Carbon Felt Sorption and Photochemical Processes

open access: yesAdvanced Science, EarlyView.
A closed‐loop “Concentrate‐Destroy” strategy is presented for completely eliminating short‐chain and emerging PFAS, in which the new 3D PPy@P‐CF is used for efficiently concentrating PFAS and Cu2+‐mediated photodegradation is applied for the completely destroying PFAS in the sorbent regeneration eluent.
Hao Yu   +5 more
wiley   +1 more source

GROUNDWATER FLOW MODELING FOR MANAGEMENT AND DEVELOPMENT SYSTEMS IN THE URBAN AREA OF MAJENE DISTRICT, WEST SULAWESI PROVINCE

open access: yesJurnal Ilmiah Teknik Sipil, 2021
The computer-depicted groundwater model is a representation of the actual situation that represents it in the field, so that it can function as a monitoring and forecasting of a future groundwater flow system.
Aji Marwadi
doaj   +1 more source

Correcting Apparent Priming Bias Unveils Fertilizer Nitrogen‐Risk Archetypes of Surplus and Depletion Across Asian Rice Systems

open access: yesAdvanced Science, EarlyView.
Correcting the apparent priming effect resolves systematic biases in Asian rice fertilizer nitrogen accounting. Net soil retention drops below 7%, while 48% of fertilizer escapes, inflicting US$98.53 billion in annual reactive‐nitrogen damages. High‐resolution mapping uncovers N‐risk archetypes across 42% of the rice area, delivering a spatially ...
Xiuyun Liu   +5 more
wiley   +1 more source

Groundwater flow across spatial scales: importance for climate modeling

open access: yesEnvironmental Research Letters, 2014
Current regional and global climate models generally do not represent groundwater flow between grid cells as a component of the water budget. We estimate the magnitude of between-cell groundwater flow as a function of grid cell size by aggregating ...
Nir Y Krakauer, Haibin Li, Ying Fan
doaj   +1 more source

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