On the Derivative of Drawdown for Single Well Pumping Tests
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DOI: 10.1007/s11269-018-2047-9
Abstract: The communication explains the physical meaning of the derivative of drawdown for a pumping test. read more here.
Keywords: pumping tests; single well; derivative drawdown; drawdown single ... See more keywords
Eigenvalue ratios for vibrating string equations with single-well densities
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DOI: 10.1016/j.jde.2021.11.006
Abstract: In this paper, we prove the optimal upper bound λn λm ≤ ( n m )2 of vibrating string −y = λρ(x)y, with Dirichlet boundary conditions for single-well densities. The proof is based on the… read more here.
Keywords: vibrating string; eigenvalue ratios; ratios vibrating; single well ... See more keywords
Deterministic and randomized motions in single-well potentials
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DOI: 10.1088/1751-8121/ab4350
Abstract: Newtonian, undamped motion in single-well potentials belong to a class of well-studied conservative systems. Here, we investigate and compare long-time properties of fully deterministic motions in single-well potentials with analogous randomized systems. We consider a… read more here.
Keywords: motions single; deterministic randomized; time; single well ... See more keywords
Solutions of P-SV and SV-P waves in single-well imaging through reciprocity relations
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DOI: 10.1190/geo2019-0551.1
Abstract: Single-well imaging (SWI) is a borehole measurement technique for detecting geologic structures outside a borehole by using arrays of receivers to record the waves reflected from these structures. The asymptotic solutions of P-P, SV-SV, and… read more here.
Keywords: reflector; source; single well; converted waves ... See more keywords