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Digitale Medien

Hyperthermia improves local tumour control in locally advanced breast cancer (1988)

Wiedemann, G. ; Mella, O. ; Coltart, R. S. ; [weitere]

Springer

Journal of molecular medicine 66 (1988), S. 1034-1038

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Details

ISSN: 1432-1440

Schlagwort(e): Hyperthermia ; Radiation ; Recurrent breast cancer

Quelle: Springer Online Journal Archives 1860-2000

Thema: Medizin

Notizen: Summary We report three patients with advanced breast cancer who received hyperthermia (43°C over 1 h, weekly ×4) and radiotherapy as palliative treatment for chest-wall recurrence. The case reports demonstrate situations where hyperthermia may be beneficial. These include tumours where radiotherapy alone is not expected to achieve control, such as large fungating tumours, and in previously irradiated areas. In these patients, hyperthermia with radiation achieves better local control of the tumour and delays the need for systemic chemotherapy. This may improve the quality of palliation.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01733451

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Digitale Medien

An ILU preconditioner with coupled node fill-in for iterative solution of the mixed finite element formulation of the 2D and 3D Navier-Stokes equations (1992)

Dahl, O. ; Wille, S. Ø

Chichester : Wiley-Blackwell

International Journal for Numerical Methods in Fluids 15 (1992), S. 525-544

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Details

ISSN: 0271-2091

Schlagwort(e): Navier-Stokes ; Mixed formulation ; Orthomin ; Bi-CGSTAB ; Jacobi preconditioning ; SSOR ; Incomplete LU ; Inner iterations ; Engineering ; Engineering General

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Maschinenbau

Notizen: In the present paper, preconditioning of iterative equation solvers for the Navier-Stokes equations is investigated. The Navier-Stokes equations are solved for the mixed finite element formulation. The linear equation solvers used are the orthomin and the Bi-CGSTAB algorithms. The storage structure of the equation matrix is given special attention in order to avoid swapping and thereby increase the speed of the preconditioner. The preconditioners considered are Jacobian, SSOR and incomplete LU preconditioning of the matrix associated with the velocities. A new incomplete LU preconditioning with fill-in for the pressure matrix at locations in the matrix where the corner nodes are coupled is designed. For all preconditioners, inner iterations are investigated for possible improvement of the preconditioning. Numerical experiments are executed both in two and three dimensions.

Zusätzliches Material: 5 Ill.