| 1. |
- Fratarcangeli, Marco, 1974
(författare)
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Method for interactive, real-time animation of soft body dynamics
- 2018
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Patent (övrigt vetenskapligt/konstnärligt)abstract
- There is presented a method for interactive, real-time animation of soft body dynamics , comprising the steps of: providing a 3D model of a soft body, the model comprising a set of vertices connected by edges ; defining a set of physical constraints between vertices in the 3D model , the set of constraints forming a system of linear equations comprising a set of unknowns representing the positions of the vertices ; applying a Brooks-Vizing node coloring algorithm in order to partition the system of linear equations into a set of partitions each including an independent subset of unknowns; for each partition , applying a Gauss - Seidel based solver in parallel in order to determine an approximation of the unknowns ; and using the determined approximation of the unknowns to update the 3D model . There is also pre sented an animation system configured to perform the above-described method.
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| 2. |
- Lundh, Torbjörn, 1965, et al.
(författare)
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Ny kärlprotes : NEW VASCULAR PROSTHESES
- 2009
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Patent (övrigt vetenskapligt/konstnärligt)abstract
- A vascular prosthesis is disclosed, comprising a forked tube, having: an inflow tube with an inflow end (6); a primary distal outflow branch with a primary distal outflow end (8); and a secondary proximal outflow branch with a secondary proximal outflow end (7). The two outflow ends are directed in different directions and the two outflow branches in the vicinity of the bifurcation (9) have different cross-sectional areas. Further, the secondary proximal outflow branch is more curved than the primary distal outflow branch, and the secondary proximal outflow branch in the vicinity of the bifurcation has a smaller cross-sectional area than the primary distal outflow branch. Hereby, energy losses at flow bifurcations is adapted to the bypass situation to even out the level of shear stress, thereby avoiding areas with low shear stress and decreasing the tendency for turbulent flow, thus reducing the risk of graftstenosis.
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| 3. |
- Lundh, Torbjörn, 1965, et al.
(författare)
-
Ny kärlprotes
- 2009
-
Patent (övrigt vetenskapligt/konstnärligt)abstract
- A vascular prosthesis is disclosed, comprising a forked tube, having: an inflow tube with an inflow end (6); a primary distal outflow branch with a primary distal outflow end (8); and a secondary proximal outflow branch with a secondary proximal outflow end (7). The two outflow ends are directed in different directions and the two outflow branches in the vicinity of the bifurcation (9) have different cross-sectional areas. Further, the secondary proximal outflow branch is more curved than the primary distal outflow branch, and the secondary proximal outflow branch in the vicinity of the bifurcation has a smaller cross-sectional area than the primary distal outflow branch. Hereby, energy losses at flow bifurcations is adapted to the bypass situation to even out the level of shear stress, thereby avoiding areas with low shear stress and decreasing the tendency for turbulent flow, thus reducing the risk of graftstenosis.
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