Fujitsu Corporation

Ikuo Fukuda

Shigeru Kameda

Shoichi Masuda

Ichiro Suzuki

Takefumi Namiki

Munetaka Takeuchi

Hiromi Hayashi

Kouzo Nagano

Masuhiro Mikami

Kota Sakai

A simulation device calculates an equilibrium arrangement of a set of particles by using a potential function or a force function, which describes an interaction of a particle system, and simulates the particle system by using an obtained equilibrium arrangement as an initial arrangement.

Device and method for generating an arrangement of a set of particles

A processing device generates a model of a tree in a given arbitrary space, reshapes the tree based on the nodes included in the tree, and outputs a reshape result. By repeating the reshape of the tree while examining the cost value of a reshaped tree, a local Steiner tree with a good cost value is obtained. A network shape is optimized by using the obtained local Steiner tree.

Processing device for searching for a suitable network shape in a general metric space

A processing apparatus changes deformation elements composing a shape representing a problem to be processed using a search termination condition, a sequencing algorithm for deformation elements, a cost function and a deformation pattern, and deforms the shape. Then, the processing apparatus searches for a shape with the minimum cost, and outputs the shape as a solution.

Processing apparatus and method for solving optimization problem

In an optimization problem, an optimum solution is searched by using the deterministic dynamics which has a neighborhood search capability, is not trapped into a local minimum state during a search using a search speed control mechanism, and improves the realization probability of the optimum state independent of the search speed.

Processing device searching for an optimum value of a cost function by using dynamics

A graphic display apparatus for rotating a three-dimensional figure about the three axes of the Cartesian coordinate system has a graphic information storing unit for storing graphic information of a three-dimensional object to be displayed, a rotative action indicating unit for indicating rotative actions to rotate the three-dimensional object being displayed about the three axes, a display coordinate calculating unit for calculating coordinates of the three-dimensional object after it is rotated, a rotational angle calculating unit for calculating rotational angles of the three-dimensional object after it is rotated, and a display unit for displaying the three-dimensional object after it is rotated and the calculated rotational angles. The rotational angle calculating unit calculates the rotational angles of the three-dimensional object rotated by the rotative action, as rotational angles from the initial state of the three-dimensional object in a predetermined sequence of three rotative actions. This arrangement allows the operator to subsequently reconstruct the desired rotated state of the displayed three-dimensional figure without concern over the contents and sequence of rotative actions that have already been made, simply by entering the calculated rotational angles successively in a given sequence from the initial state.

Graphic display apparatus

A constraint condition generating apparatus generates a constraint condition which should be output to a molecular dynamics simulator for simulating a behavior of a molecule based on a molecular dynamics method under the constraint condition for freezing a part of the degree of freedom within the molecule. This apparatus comprises bond constraint condition setting and releasing unit for setting a bond constraint list comprising the number of two atoms whose bond are to be constrained and a bonding distance between two atoms, and for releasing the constraint of the bond of two atoms, angle constraint condition setting and releasing means for setting an angle constraint condition including a bonding distance between two atoms which are not common and for releasing a part of angle constraint condition in accordance with a designation by a user; and a torsion constraint condition setting and releasing unit for setting a torsion constraint condition including a bonding distance between two atoms which are not common, and for releasing a part of a constraint condition in accordance with a designation by a user.

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Kanagawa, Japan

Ikuo Fukuda