Results 11 to 20 of about 28,252 (263)
Digital Twin mechanism model for the structural safety of pipelines in geohazards area
You-qi chuyun, 2021 Geohazard is one of the major factors threating the safe operation of oil and gas pipelines. However, due to the inspection accuracy of equipment and the discreteness of inspection data, the pipeline safety cannot be analyzed quantitatively with a single
Hong ZHANG +6 more
doaj +1 more source
Joint geoacoustic inversion based on Pearson correlation coefficient constraints [PDF]
JASA Express Letters, 2023 This Letter proposes a joint geoacoustic inversion method for modal group velocity dispersion and amplitudes of waveform by incorporating a Pearson correlation constraint. Numerical simulations show that this joint inversion leads to improved geoacoustic
Jiaqi Ding, Xiaofeng Zhao, Pinglv Yang
doaj +1 more source
Water Resources Research, 2023 The Meuse/Haute‐Marne Underground Research Laboratory provides the location for the experiment designed to investigate the induced fracture network around open or sealed galleries and drifts.
Mohammadreza Jalali +3 more
doaj +1 more source
Stokes' Problems for an Incompressible Couple Stress Fluid
Nonlinear Analysis, 2008 Stokes’ first and second problems for an incompressible couple stress fluid are considered under isothermal conditions. The problems are solved through the use of Laplace transform technique.
M. Devakar, T. K. V. Iyengar
doaj +1 more source
Optimized numerical inverse Laplace transformation
ACM SIGMETRICS Performance Evaluation Review, 2022 Among the numerical inverse Laplace transformation (NILT) methods, those that belong to the Abate-Whitt framework (AWF) are considered to be the most efficient ones currently. It is a characteristic feature of the AWF NILT procedures that they are independent of the transform function and the time point of interest. In this work we propose an
Illés Horváth +2 more
openaire +2 more sources
Unique identification of fractional orders in the fractional mobile–immobile solute transport system
Applied Mathematics in Science and Engineering, 2023 This article deals with a fractional mobile–immobile solute transport system in porous media and an inverse problem of identifying the fractional orders by the additional measurements at one interior point.
Gongsheng Li +3 more
doaj +1 more source
A Numerical Method for Inverse Spectral Problems
Bulletin of the South Ural State University. Series "Mathematical Modelling, Programming and Computer Software", 2015 На основе метода Галеркина разработан новый численный метод решения обратных спектральных задач, порожденных дискретными полуограниченными снизу операторами. В отличии от метода решения обратных спектральных задач, основанного на теории регуляризованных следов дискретных полуограниченными снизу операторов, в разработанном методе ослаблены ограничения ...
KADCHENKO S.I., ZAKIROVA G.A.
openaire +3 more sources
Известия высших учебных заведений: Нефть и газ, 2017 The analysis of a temperature profile in the trunk of a vertical well when pumping liquid was carried out. The paper describes the application of an algorithm of the inverse numerical transformation with use of Gaussian quadratures (Iseger's method) to a
A. I. Filippov, E. P. Shcheglova
doaj +1 more source
Trends in Computational and Applied Mathematics, 2018 In this paper, a three-dimensional solution of the steady-state advection-diffusion equation is obtained applying the Generalized Integral Advection Diffusion Multilayer Technique (GIADMT), considering non-local closure for turbulent flow. Two different
Camila Pinto da Costa +2 more
doaj +1 more source
Run up flow of a couple stress fluid between parallel plates
Nonlinear Analysis, 2010 Consider the flow of an incompressible fluid between two parallel plates, initially induced by a constant pressure gradient. After steady state is attained, the pressure gradient is suddenly with drawn while the plates are impulsively started ...
M. Devakar, T. K. V. Iyengar
doaj +1 more source