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Fast calculations of the gradient and the Hessian in the time-domain global electromagnetic induction inverse problem
The deterministic approach to the inverse problem of the time-domain electromagnetic induction in a spherical Earth requires the calculation of the first derivative of a misfit function in every step of the minimization process. In ...
Earth and related environmental sciences
- 2017 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
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Global 3-D electromagnetic forward modelling: a benchmark study
Global electromagnetic (EM) induction studies have been the focus of increasing attention during the past few years. A primary stimulus for this interest has been to attack the most challenging problem of deep ...
DE - Zemský magnetismus, geodesie, geografie
- 2014 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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Vector potential formulation of a quasi-static EM induction problem: existence, uniqueness and stability of the weak solution
aspects related to the solvability of this problem. We formulate the initial, boundary-value problem of electromagnetic induction in terms of a magnetic vector potential only, first in differential and then in integral for...
DE - Zemský magnetismus, geodesie, geografie
- 2011 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Inversion of the satellite observations of the tidally induced magnetic field in terms of 3-D upper-mantle electrical conductivity: method and synthetic tests
to the inverse problem of global EM induction. It is set up for an effective inversion field provides a powerful natural source of electromagnetic (EM) energy suitable and upper mantle WINTERC-G. The latt...
Earth and related environmental sciences
- 2022 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Convergence of the Expectation Maximization Algorithm for the Conditionally Independent Model to the Global Maximum
This contribution builds on M.I. Schlesinger's results. M.I. Schlesinger discovered that in a special case of a statistical model (conditional independence with two hidden states only) the EM algorithm converges to a global extreme....
JD - Využití počítačů, robotika a její aplikace
- 2003 •
- D
Rok uplatnění
D - Stať ve sborníku
A billet caster and electromagnetic stirring
Electromagnetic stirring (EMS) suppresses the growth of columnar crystals of billets and reduces the tendency to cracking during casting and at low temperatures. A caster was used for the testing of two induction stirrers - one on t...
JG - Hutnictví, kovové materiály
- 2009 •
- D
Rok uplatnění
D - Stať ve sborníku
The adjoint sensitivity method of global electromagnetic induction for CHAMP magnetic data
We studied in many possible ways the adjoint sensitivity method of global electromagnetic induction for CHAMP magnetic data...
DE - Zemský magnetismus, geodesie, geografie
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Standardised management systems.
Basic themes in document: scientific principles environmental problems; sustainable development; international standards; EMS; EMAS.
EH - Ekologie – společenstva
- 2000 •
- D
Rok uplatnění
D - Stať ve sborníku
Alternative optimization approaches to the design of EM structures
Application of global optimization methods to the efficient design of models of microwave structures in the frequency domain.
JA - Elektronika a optoelektronika, elektrotechnika
- 2002 •
- D
Rok uplatnění
D - Stať ve sborníku
Multi-objective Design of EM Components
Design of EM components is usually very demanding task. It comprises setting of possible combinations increases exponentially. Therefore, the use of global stochastic the solved problem and its contradictory requirements. I...
JA - Elektronika a optoelektronika, elektrotechnika
- 2016 •
- C •
- Link
Rok uplatnění
C - Kapitola v odborné knize
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