Results 141 to 150 of about 766 (235)

pointwise multipliers between Sobolev spaces

open access: yes, 2005
The objective of this thesis is to give the fundamental tools of the theory of the pointwise multipliers based mainly on the theory of the Fourier transform and of tempered distributions, and to give it applications in the theory of PDE's. The study of the multipliers pointwise examines in what condition we have the capacitary inequality.
openaire   +1 more source

Rotatable Lens‐Based 3D Reconstruction Method for Monocular Vision Systems

open access: yesSmartBot, Volume 2, Issue 2, June 2026.
Accurate 3D reconstruction in confined environments remains challenging because conventional vision‐based measurement systems are difficult to maintain compactness without sacrificing accuracy. Here, the authors develop a rotatable lens‐based monocular vision system, which is the first time using the refraction of the light induced by a rotating wedge ...
Puchen Zhu   +11 more
wiley   +1 more source

Quantification of Difference in Nonselectivity Between In Vitro Diagnostic Medical Devices. [PDF]

open access: yesBiom J
Fauskanger PK   +9 more
europepmc   +1 more source

Observed Trends and Variability in the Water Masses of the Southern Ocean

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract We present SatGEM‐2, a new version of the satellite gravest empirical mode (SatGEM) Atlas for the circumpolar Southern Ocean, incorporating all available CTD and Argo profile data through December 2022. SatGEM‐2 uses in situ hydrographic observations to construct static gravest empirical mode (GEM) fields in pressure–sea surface height (sea ...
James K. Wyatt   +4 more
wiley   +1 more source

Information Flow in Geophysical Systems

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 6, June 2026.
Abstract We present a new framework for analyzing the evolution of information in geophysical systems. Understanding how information, and its counterpart, uncertainty, propagates is central to predictability studies and has significant implications for applications such as forecast uncertainty quantification and risk management. It also offers valuable
P. J. van Leeuwen
wiley   +1 more source

Boundary control of semilinear elliptic equations with discontinuous leading coefficients and unbounded controls

open access: yes, 1997
International audienceWe consider optimal control problems governed by semilinear elliptic equations with pointwise constraints on the state variable. The main difference with previous papers is that we consider nonlinear boundary conditions, elliptic ...
Raymond, Jean-Pierre   +1 more
core  

Quality Control of Magnetotelluric Impedance Inversion via Self‐Supervised Learning Based on Data Continuity of Nyquist Diagrams

open access: yesGeophysical Prospecting, Volume 74, Issue 5, June 2026.
ABSTRACT Magnetotelluric (MT) data are often contaminated by electromagnetic (EM) noise, making quality control (QC) essential for reliable inversion. Conventional manual time‐domain QC processes are labour‐intensive, and some noise inevitably remains after processing, necessitating complementary processing in the frequency domain to address the ...
Hanjoon Park   +5 more
wiley   +1 more source

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