References of "Rochus, Pierre"
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See detailTests au sol du télescope spatial XMM
Mazy, Emmanuel ULg; Stockman, Yvan ULg; Rochus, Pierre ULg

in SupOptique Avenir 1996 page 14-16. (1996)

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See detailEIT: Extreme-Ultraviolet Imaging Telescope for the SOHO Mission
Delaboudinière, J.-P.; Artzner, G. E.; Brunaud, J. et al

in Solar Physics (1995), 162

The Extreme-ultraviolet Imaging Telescope (EIT) will provide wide-field images of the corona and transition region on the solar disc and up to 1.5 Ro above the solar limb. Its normal incidence multilayer ... [more ▼]

The Extreme-ultraviolet Imaging Telescope (EIT) will provide wide-field images of the corona and transition region on the solar disc and up to 1.5 Ro above the solar limb. Its normal incidence multilayer-coated optics will select spectral emission lines from Fe IX (171 Å), Fe XII (195 Å), Fe XV (284 Å), and He II (304 Å) to provide sensitive temperature diagnostics in the range from 6 × 10[SUP]4[/SUP] K to 3 × 10[SUP]6[/SUP] K. The telescope has a 45 x 45 arcmin field of view and 2.6 arcsec pixels which will provide approximately 5-arcsec spatial resolution. The EIT will probe the coronal plasma on a global scale, as well as the underlying cooler and turbulent atmosphere, providing the basis for comparative analyses with observations from both the ground and other SOHO instruments. This paper presents details of the EIT instrumentation, its performance and operating modes. [less ▲]

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See detailAlignment of the Extreme-UV Imaging Telescope (EIT)
Defise, Jean-Marc ULg; Georges, Marc ULg; Rochus, Pierre ULg et al

Conference (1994, September 05)

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See detailMR1325693,Huang, Hou-Cheng and Usmani, Asif S.,Finite element analysis for heat transfer
Rochus, Pierre ULg

in Mathematical Reviews [=MR] (1994)

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See detailMR1240747,Hromadka, II, Theodore V.,The best approximation method in computational mechanics
Rochus, Pierre ULg

in Mathematical Reviews [=MR] (1993)

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See detailMR1125988,Salmenjoki, Kimmo ,On numerical methods for shape design problems
Rochus, Pierre ULg

in Mathematical Reviews [=MR] (1991)

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See detailMR1090950,Martinet, Jean ,Thermocińetique approfondie
Rochus, Pierre ULg

in Mathematical Reviews [=MR] (1990)

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See detailLe télescope pour l'ultraviolet extrême EIT
Koeckelenberg, A.; Rochus, Pierre ULg

in Nouvelles de la Science et des Technologies (1990), 8

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See detailMR1011881,Kleiber, Micha ,Incremental finite element modelling in nonlinear solid mechanics
Rochus, Pierre ULg

in Mathematical Reviews [=MR] (1989)

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See detailMR941586, Multicriteria optimization in engineering and in the sciences, Stadler
Rochus, Pierre ULg

in Mathematical Reviews [=MR] (1988)

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See detailMR1008473,Hughes, Thomas J. R.,The finite element method
Rochus, Pierre ULg

Book published by Prentice Hall Inc. (1987)

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See detailFN op het tijdstip van de CAD
Rochus, Pierre ULg

in PANINFORMATIC (1985)

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See detailSingle-particle potential in a relativistic Hartree-Fock mean field approximation
Jaminon, Martine ULg; Mahaux, Claude ULg; Rochus, Pierre ULg

in Nuclear Physics A (1981), 365

A relativistic Hartree-Fock mean field approximation is investigated in a model in which the nucléon field interacts with scalar and vector meson fields. The Hartree-Fock potential felt by individual ... [more ▼]

A relativistic Hartree-Fock mean field approximation is investigated in a model in which the nucléon field interacts with scalar and vector meson fields. The Hartree-Fock potential felt by individual nucléons enters in a relativistic Dirac single-particle equation. It is shown that in the case of symmetric nuclear matter one can always find a potential which is fully equivalent to the most general mean field and which is only the sum of a Lorentz scalar, of one component of a Lorentz tensor and of the fourth component of a Lorentz vector. A non-relativistic potential is derived which yields exactly the same single-particle energies and elastic scattering phase shifts as the relativistic Hartree-Fock potential. Analytical results are presented in the case of nuclear matter. A local density approximation is constructed which enables one to consider finite nuclei. The input parameters of the model can be chosen in such a way that the empirical saturation properties of nuclear matter are well reproduced. Good agreement is obtained between the calculated non-relativistic potential and the empirical value of the real part of the optical-model potential at low and at intermediate energy. At intermediate energy, the wine-bottle bottom shape which had previously been found for the potential in the framework of the relativistic Hartree approximation is maintained when the Fock contribution is included. [less ▲]

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See detailShell Model Potential from a Relativistic Hartree Fock Approach
Jaminon, Martine ULg; Mahaux, Claude ULg; Rochus, Pierre ULg

in A. Molinari (Ed.) From nuclei to particles North-Holland 1981 (1981)

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See detailOptical-model potential in a relativistic quantum field model
Jaminon, Martine ULg; Mahaux, Claude ULg; Rochus, Pierre ULg

in Physical Review. C : Nuclear Physics (1980), 22

The average nucleon-nucleus potential at low and medium energy is investigated in the framework of a relativistic quantum field model. Using the same input parameters as Brockmann in his recent study of ... [more ▼]

The average nucleon-nucleus potential at low and medium energy is investigated in the framework of a relativistic quantum field model. Using the same input parameters as Brockmann in his recent study of nuclear ground states, we calculate the self-consistent relativistic Hartree potential at positive energy in the case of infinite nuclear matter and of [SUP]16[/SUP]O and [SUP]40[/SUP]Ca. This potential is the sum of a scalar operator and of the fourth component of a vector operator. We construct its Schrödinger-equivalent potential by eliminating the small component of the Dirac spinor. The central part of this Schrödinger-equivalent potential is in fair agreement with empirical values at low and intermediate energy. Particular attention is paid to the intermediate energy domain, in which the calculated potential is repulsive in the nuclear interior and attractive at the nuclear surface. This is in keeping with some empirical evidence and is similar to results found in the framework of the nonrelativistic Brueckner-Hartree-Fock approximation. The spin-orbit potential of the relativistic Hartree model is also in good agreement with empirical values. NUCLEAR REACTIONS Calculated average nuclear field of nuclear matter, [SUP]16[/SUP]O and [SUP]40[/SUP]Ca at positive energy from relativistic Hartree approximation. [less ▲]

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