Results 11 to 20 of about 15,068 (223)

Modeling of Recharge Spatial Distribution in Karst Aquifers of Tangekhosh Watershed (Bushehr Province) Using the KARSTLOP Method [PDF]

open access: yesپژوهش‌های آبخیزداری, 2020
Assessing the spatial distribution of recharge in karstified terrains is very important for water management and protection, but it is a complex issue due to the complexity of natural conditions and water movement in karst areas, and the application of ...
Fatemeh Tavakolirad   +3 more
doaj   +1 more source

Investigating Quantitative Status of Groundwater Resources in Kashan Plain, Perspective and Providing Appropriate Solutions [PDF]

open access: yesمهندسی منابع آب, 2023
Introduction: In this research, the groundwater quantitative status in Kashan plain and its future perspective with emphasis on drinking water and health was investigated.
Hossein Khorasanizadeh   +3 more
doaj   +1 more source

Electrochemical stability of ZnMn2O4: Understanding Zn-ion rechargeable battery capacity and degradation [PDF]

open access: yesJ. Phys. Chem. C 126, 10957-10967 (2022), 2022
We present a refined Mn-Zn-H$_2$O Pourbaix diagram with the emphasis on parameters relevant for the Zn/MnO$_2$ rechargeable cells. It maps out boundaries of electrochemical stability for MnO$_2$, ZnMn$_2$O$_4$, ZnMn$_3$O$_7$, and MnOOH. The diagram helps to rationalize experimental observation on processes and phases occurring during charge/discharge ...
arxiv   +1 more source

A Columbia River Basalt Group Aquifer in Sustained Drought: Insight from Geophysical Methods

open access: yesResources, 2015
Aquifers within the Columbia River Basalt Group (CRBG) provide a critical water supply throughout much of the Pacific Northwest of the United States. Increased pumping has resulted in water level declines in this region. Recharge into this aquifer system
Mark W. Piersol, Kenneth F. Sprenke
doaj   +1 more source

Determination of water balance equation components in irrigated agricultural watersheds using SWAT and MODFLOW models : A case study of Samalqan plain in Iran

open access: yesJournal of Groundwater Science and Engineering, 2022
Increasing water demands, especially in arid and semi-arid regions, continuously exacerbate groundwater as the only reliable water resources in these regions.
Shima Nasiri   +2 more
doaj   +1 more source

Mobile Wireless Rechargeable UAV Networks: Challenges and Solutions [PDF]

open access: yesIEEE Communication Magazine 2022, 2022
Unmanned aerial vehicles (UAVs) can help facilitate cost-effective and flexible service provisioning in future smart cities. Nevertheless, UAV applications generally suffer severe flight time limitations due to constrained onboard battery capacity, causing a necessity of frequent battery recharging or replacement when performing persistent missions ...
arxiv   +1 more source

Assessment of Groundwater Resources in Jaffna Limestone Aquifer

open access: yesTropical Agricultural Research, 2012
This study is centered on quantitative estimation of groundwater resources of a selected study area in a limestone aquifer, which is the main resource for agriculture, domestic use and water supply in Jaffna Peninsula.
M Thushyanthy, CS De Silva
doaj   +1 more source

Physical Structure of the Epikarst

open access: yesActa Carsologica, 2013
Epikarst is a weathered zone of enhanced porosity on or near the surface or at the soil/bedrock contact of many karst landscapes. The epikarst is essentially the upper boundary of a karst system but is also a reaction chamber where many organics ...
William K. Jones
doaj   +1 more source

Quantitative Assessment of Fluoride Release and Recharge Ability of Different Restorative Materials in Different Media: An in Vitro Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2014
Objective: To measure fluoride release and recharge ability of restorative materials in deionised water, artificial saliva and lactic acid. Materials and Methods: Pellets were prepared from GC2, Ketac N100 and Beautifil II.
Mahesh M. Jingarwar   +3 more
doaj   +1 more source

Stable isotope composition in precipitation and groundwater of Shwan Sub-Basin, Kirkuk governorate, northeast of Iraq

open access: yesWater Supply, 2022
Stable isotope composition of δ2H and δ18O was investigated in the water resources of the Shwan sub-Basin northeast of Iraq. The study objects conceived the possible factors that affect the stable isotopes’ composition in precipitation additionally to ...
Hind Fadhil Al-Gburi   +3 more
doaj   +1 more source

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