Results 21 to 30 of about 399,720 (138)

Hydrostratigraphic Characterization in South-Eastern Coastal Aquifer of Bangladesh using Lithological Data and Step-drawdown Test

open access: yes, 2020
The hydrogeological investigation of south-eastern coastal aquifer of Bangladesh has been performed for the evaluation of well performance in the aquifer based on well logs and step-drawdown tests.
Mohammad Tofayal Ahmed   +2 more
semanticscholar   +1 more source

Principle of superposition versus CVFD approach in analyzing the step-drawdown test data

open access: yes, 2022
Abstract A nonlinear partial differential equation is required for representing groundwater flow in an unconfined aquifer. In pumping tests, analytical models use linearized version of the Boussinesq's flow equation with the principle of superposition to incorporate the effects of time varying pumping rate and boundary conditions for estimating
Luminda Niroshana Gunawardhana   +3 more
openaire   +1 more source

A new approach to the step-drawdown test

open access: yes, 2009
In this paper a new approach to perform step-drawdown tests in presented. Step-drawdown tests known so far are performed strictly keeping the value of the pumping rates constant through all the steps of the test. Current technology allows us to let the submerged electric pumps work at a specific revolution per minute (rpm) and allows us to suitably ...
openaire   +3 more sources

A performance comparison of machine learning models for stock market prediction with novel investment strategy. [PDF]

open access: yesPLoS One, 2023
Khan AH   +7 more
europepmc   +1 more source

Mapping the Spatial Sensitivity of Aquitard Hydraulic Parameters on Pumping Test Drawdowns. [PDF]

open access: yesGround Water
van Leer MD   +4 more
europepmc   +1 more source

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