Results 41 to 50 of about 223,213 (353)

Spatial variability of groundwater recharge - I. Is it really variable? [PDF]

open access: yes, 2004
The spatial variability of recharge is an important consideration in estimating recharge especially as all methods of estimating it are 'point' estimates and in most places recharge varies in space.
De Silva, RP
core  

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Use of water from small alluvial aquifers for irrigation in semi-arid regions. [PDF]

open access: yes, 2011
Water from small alluvial aquifers constitutes an attractive and low-cost option for irrigation and rural development in Northeastern Brazil. Based on piezometric measurements, geochemical analyses and electrical conductivity estimates, the present case ...
Burte, Julien Daniel Pierre   +2 more
core   +4 more sources

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

open access: yesAdvanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco   +8 more
wiley   +1 more source

Hydrometeorological factors determining the development of water table cave patterns in high alpine zones. The Ordesa and Monte Perdido National Park, NE Spain

open access: yesInternational Journal of Speleology, 2020
This study is focussed on the geomorphological characterization and the processes driving the evolution of the highest karst system in Western Europe, which is located in the Ordesa and Monte Perdido National Park (PNOMP), in the central-southern ...
Antonio González-Ramón   +8 more
doaj   +1 more source

The effect of using different time steps in a soil water balance model to estimate groundwater recharge in the dry zone of Sri Lanka [PDF]

open access: yes, 2010
Importance of groundwater as a natural, renewable resource is well documented. The rate of replenishment of water table (or rate of groundwater recharge) is a key issue central to sustainable development of this valuable resource.
De, Silva
core  

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

open access: yesAdvanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim   +6 more
wiley   +1 more source

A Saint-Venant Model for Overland Flows with Precipitation and Recharge

open access: yesMathematical and Computational Applications, 2020
We propose a one-dimensional Saint-Venant (open-channel) model for overland flows, including a water input–output source term modeling recharge via rainfall and infiltration (or exfiltration).
Mehmet Ersoy   +2 more
doaj   +1 more source

A comprehensive discrimination method for the genetic type of groundwater regime of phreatic water: a case study in the Songhua River basin of the Sanjiang Plain

open access: yesShui kexue jinzhan, 2022
Traditional methods for discriminating the genetic type of groundwater regime have some problems, such as being substantially affected by human subjective factors and the ease of producing multiple solutions.
Xueyan YE   +3 more
doaj   +1 more source

Tracer test modeling for characterizing heterogeneity and local-scale residence time distribution in an artificial recharge site [PDF]

open access: yes, 2016
Artificial recharge of aquifers is a technique for improving water quality and increasing groundwater resources. Understanding the fate of a potential contaminant requires knowledge of the residence time distribution (RTD) of the recharged water in the ...
Ayora Ibáñez, Carlos   +7 more
core   +2 more sources

Home - About - Disclaimer - Privacy