Temat: 02.30.Zz - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Unstable Inverse Heat Transfer Problems in Microelectronics
Autorzy:: De Mey, G.
Bogusławski, B.
Kos, A.
Powiązania:: https://bibliotekanauki.pl/articles/1400120.pdf
Data publikacji:: 2013-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 02.30.Zz
44.05.+e
85.40.Qx
Opis:: Inverse heat transfer problems are very important for the thermal testability of integrated circuits. Temperature sensors integrated on the same chip measure in real time the power dissipation in one or more critical heat sources of the circuit in order to prevent overheating. It will be demonstrated that these kinds of problems can give rise to mathematical unstabilities or the ill conditioning of the inverse problem. This statement will be proved with the help of several particular cases.
Źródło:: Acta Physica Polonica A; 2013, 123, 4; 637-641
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Discrete Inverse Transformation for Eddy Current Tomography
Autorzy:: Nowak, P.
Urbański, M.
Raback, P.
Ruokolainen, J.
Kachniarz, M.
Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/1030496.pdf
Data publikacji:: 2018-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 02.30.Zz
87.63.Pn
02.70.Dh
81.70.-q
Opis:: Paper presents results of a discrete inverse tomography transformation on exemplary results from eddy current tomography setup. Eddy current phenomena is highly non-linear and measurement results are ill-posed function of distribution of physical properties of the matter (mostly electrical conductivity and magnetic permeability). Thus the inverse transformation (reconstruction of objects shape) is based on an optimization algorithm in which objects model is described as a discrete array. With the usage of Finite Element Method (FEM) tomography measurement process is reconstructed and modelling results are compared with the measurement.
Źródło:: Acta Physica Polonica A; 2018, 133, 3; 701-703
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Inverse Laplace Transform of Some Rational Functions
Autorzy:: Wituła, R.
Powiązania:: https://bibliotekanauki.pl/articles/1418095.pdf
Data publikacji:: 2012-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 02.30.Zz
42.30.Lr
42.25.-p
42.65.Wi
Opis:: In this paper we propose a formula of recurrent nature for calculating the inverse Laplace transforms of some rational functions. The procedure and formulae enabling to determine the values of coefficients of obtained series are presented. Proposed procedure does not require any partial fraction decomposition. Moreover, it is proved that the radius of convergence of the received series (for the respective objective function) is equal to infinity. The proposed formula can find applications in wave optics and acoustics.
Źródło:: Acta Physica Polonica A; 2012, 122, 5; 966-968
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Recovering Images from PET Camera
Autorzy:: Üstündağ, D.
Powiązania:: https://bibliotekanauki.pl/articles/1031634.pdf
Data publikacji:: 2017-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 02.30.ZZ
02.50.-R
29.30.KV
87.57.Q-
87.57.U
Opis:: We study here one of the imaging techniques, used in nuclear medicine, called positron emission tomographic imaging, that provides information about many biological processes that are essential to the functioning of the organ, being visualized. Our emphasis is given to the application of the maximum entropy image reconstruction method called "Cambridge MaxEnt Package" for recovering images of the human brain from data obtained by positron emission tomographic camera.
Źródło:: Acta Physica Polonica A; 2017, 132, 3; 963-966
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Resonant Two-Electron Pairs in a Simple Cubic Lattice
Autorzy:: Bak, M.
Powiązania:: https://bibliotekanauki.pl/articles/1374452.pdf
Data publikacji:: 2014-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.10.Fd
31.15.xh
71.10.Li
71.55.-i
03.65.Ge
02.30.Zz
Opis:: The properties of resonant two-electron pairs are examined in three-dimensional simple cubic extended Hubbard tUW model, in s- and d- symmetry channels, in the limit of empty lattice. Lattice Green function technique is applied to calculate the scattering amplitude by means of matrix for any energy in the band on ΓR line within the Brillouin zone. The analysis shows the persistence of resonant states even for Coulomb interactions so weak that the equation for the resonant states is not formally fulfilled. The difference in behavior of resonances controlled by on-site and intersite Coulomb interactions is found. The ranges of applicability of approximate formula for the actual position of resonant peak and its width are shown.
Źródło:: Acta Physica Polonica A; 2014, 126, 4a; A-63-A-69
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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