89 results about "Collider" patented technology

A method for creating ultra-fine particles of material using a high-pressure mill is described. The method includes placing a material in a first chamber and subjecting the material to a high-pressure fluid jet to divide it into particles. These particles are then transferred to a second chamber in which they are subjected to cavitation to further divide the particles into relatively smaller particles. These relatively smaller particles are then transferred to a third chamber, in which the particles collide with a collider to still further divide them into ultra-fine particles of the material. The mill of the present invention includes a first chamber having an high-pressure liquid jet nozzle, first and second slurry nozzles, a second cavitation chamber and a third chamber which houses a collider. In one embodiment, the slurry nozzle has an inner surface and sharp edges that project slightly out from the inner surface. Sensors may be located throughout the mill to collect data on the comminution process and to use the data to control the resultant particle size. The product size of the ultra-fine particles made according to the mill of the present invention are preferably less than 15 microns. Further, the particles produced using the mill of the present invention are formed as flakes or platelets which have been broken along nature planes in the material.

The invention relates to a method and device for detecting collision between colliders in a real-time virtual scene. The method comprises the following steps: obtaining shortest distances from a cylindrical collider corresponding to a virtual object in a virtual scene to various planes of a first binary space partitioning collider; expanding the various planes of the first binary space partitioning collider according to the shortest distances so as to form a second binary space partitioning collider; expanding an axis aligned bounding box of the first binary space partitioning collider so as to generate an expanded outer edge bounding box; getting intersection elements of the generated expanded outer edge bounding box and the second binary space partitioning collider; and getting intersection elements of the cylindrical collider, the expanded outer edge bounding box and the second binary space partitioning collider so as to obtain a result, and performing collision detection on the result. According to the method and device for detecting collision between the colliders in the real-time virtual scene disclosed by the invention, a corner can be crossed only through a relatively short distance; therefore, the moving efficiency is increased; furthermore, smooth crossing is realized; and thus, operation is relatively smooth.

Disclosed is an apparatus for outputting a virtual keyboard, the apparatus including: a virtual keyboard image output unit determining coordinates of a virtual keyboard image by using hand information of a user and outputting the virtual keyboard image; a contact recognition unit determining a contact state by using collision information between a virtual physical collider associated with an end point of a user's finger and a virtual physical collider associated with each virtual key of the virtual keyboard image; a keyboard input unit providing multiple input values for a single virtual key; and a feedback output unit outputting respective feedback for the multiple input values. Accordingly, input convenience and efficiency may be provided by outputting the virtual keyboard in a three dimensional virtual space and reproducing an input method using a keyboard form that is similar to the real world.