Concept

Tetrahedron

Related publications (45)

Al5Br7.5THF - the first saltlike aluminum subhalide

Cocondensation of the high-temp. mol. AlBr with a PhMe/THF mixt. gave a colorless, brittle compd. of the compn. Al5Br7.5THF which from x-ray structural anal. can be formulated as [Al(AlBr.2THF)2(AlBr2.THF)2]+[Al(AlBr2.THF)4]- (I). I triclinic, space group ...

2000

Stable spectral methods on tetrahedral elements

Jan Sickmann Hesthaven

A framework for the construction of stable spectral methods on arbitrary domains with unstructured grids is presented. Although most of the developments are of a general nature, an emphasis is placed on schemes for the solution of partial differential equa ...

SIAM PUBLICATIONS2000

Accurate solution of the volume integral equation for high-permittivity scatterers

Olivier Martin

We present a formalism based on the method of moment to solve the volume integral equation using tetrahedral (3-D) and triangular (2-D) elements. We introduce a regularization scheme to handle the strong singularity of the Green's tensor. This regularizati ...

Institute of Electrical and Electronics Engineers2000

A New Hot-Tearing Criterion

Michel Rappaz, Jean-Marie Drezet

A new criterion for the appearance of hot tears in metallic alloys is proposed. Based upon a mass balance performed over the liquid and solid phases, it accounts for the tensile deformation of the solid skeleton perpendicular to the growing dendrites and f ...

1999

Descriptive contour fill of partly degenerated shapes

Roger Hersch

A uniform and consistent way of filling degenerated shapes on a raster grid is presented. The processing algorithms described are based on the contour segmentation of shapes along local minima and maxima (polysegments). To reduce errors, contour segments a ...

1986

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