Results 31 to 40 of about 1,468,576 (139)
A New Graphical Representation of the Old Algebraic Structure
The most recent advancements in algebra and graph theory enable us to ask a straightforward question: what practical use does this graph connected with a mathematical system have in the real world?
Muhammad Nadeem +3 more
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Detecting near-surface objects with seismic traveltime tomography:Experimentation at a test site [PDF]
In environmental and engineering studies, detecting shallow buried objects using seismic reflection techniques iscommonly difficult when the acquisition geometry and frequency contents are limited and the heterogeneity of the subsurfaceis high.
Sawasdee Yordkayhun
doaj
Review of seismic inverse scattering migration and inversion
With the shifting toward deeper, geologically more complex, and more subtle hydrocarbon reservoirs than before, the exploration of oil and gas resources is becoming more and more difficult.
Weijian Mao, Wuqun Li, Wei Ouyang
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Salt structures from inversion of residual gravity anomalies: application in Santos Basin, Brazil
The Santos Basin, with an area of about 350.000 km 2 , is the largest salt basin of the South Atlantic, and due to its high economic hydrocarbon potential, it is a recurrent theme in scientific studies.
Renata Regina Constantino +3 more
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Inverse scattering problem in turbulent magnetic fluctuations [PDF]
We apply a particular form of the inverse scattering theory to turbulent magnetic fluctuations in a plasma. In the present note we develop the theory, formulate the magnetic fluctuation problem in terms of its electrodynamic turbulent response ...
R. A. Treumann +3 more
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Distributive inverse semigroups and non-commutative Stone dualities [PDF]
We develop the theory of distributive inverse semigroups as the analogue of distributive lattices without top element and prove that they are in a duality with those etale groupoids having a spectral space of identities, where our spectral spaces are not
Lawson, Mark V, Lenz, Daniel H
core
From random walk to single-file diffusion
We report an experimental study of diffusion in a quasi-one-dimensional (q1D) colloid suspension which behaves like a Tonks gas. The mean squared displacement as a function of time is described well with an ansatz encompassing a time regime that is both ...
Bianxiao Cui +7 more
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Creep theory inverse problem for non-work-hardening body
The body formation by constant external forces in the conditions of the steady-state creep during set time problem is formulated and solved so that after removal of loadings the movements of points of a surface accepted preset values.
Igor Yu Tsvelodub
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This article presents an analysis of computational efficiency to solve the inverse kinematics problem of anthropomorphic robots. Two approaches are investigated: the first approach uses Paul’s method applied to the matrix obtained by the Denavit ...
Sérgio Ricardo Xavier da Silva +2 more
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Direct and inverse spectral theorems for a class of canonical systems with two singular endpoints
Part I of this paper deals with two-dimensional canonical systems $y'(x)=yJH(x)y(x)$, $x\in(a,b)$, whose Hamiltonian $H$ is non-negative and locally integrable, and where Weyl's limit point case takes place at both endpoints $a$ and $b$. We investigate a
Langer, Matthias, Woracek, Harald
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