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99results about How to "Good grouping" patented technology

System and method for organizing two and three dimensional image data

A method and system are disclosed for storing, retrieving and otherwise handling two and / or three dimensional image data forming a picture or image. The picture is defined by a plurality of levels, each level including a plurality of subpicture areas corresponding to a different level of image data resolution relative to image data resolution levels corresponding to subpicture areas in other levels. The method and system include selecting a subpicture element having image data for inclusion in the picture and identifying a subpicture area in which the subpicture element may be placed. The method and system further include placing the image data of the subpicture element in the identified subpicture area. Upon a determination that the amount of image data in the identified subpicture area exceeds a predetermined maximum amount following the placing operation, the system and method identify overlapping subpicture areas in a level corresponding to the next higher image data resolution level that overlaps the identified subpicture area. Following the identifying operation, the system and method place image data of one or more subpicture elements from the identified subpicture area into at least one of the overlapping subpicture areas.
Owner:HITACHI ENERGY SWITZERLAND AG

Method for promoting directional differentiation and proliferation of mesenchymal stem cells towards neural precursor cells

The invention provides a method for promoting directional differentiation and proliferation of mesenchymal stem cells towards neural precursor cells. The method comprises the following steps: firstly, embedding the mesenchymal stem cells in calcium alginate microbeads which are prepared with the presence of a calcium chloride solution and contains gelatin microspheres and chondroitin sulfate; then, adding a neural induction differentiation medium, and cultivating in a rotary reactor, so as to promote the in vitro directional differentiation and proliferation of the mesenchymal stem cells towards the neural precursor cells; and after differentiation, dissolving the calcium alginate microbeads by virtue of a sodium citrate solution, so that differentiated cells are obtained. The method disclosed by the invention is simple to operate and low in cost; by virtue of the gelatin microspheres, a necessary growth space is provided for internal cells of a stent; by virtue of the chondroitin, the biochemical functions of a neural tissue extracellular matrix can be simulated; by virtue of the calcium alginate microbeads, three-dimensional support, which is similar to the extracellular matrix, is provided; and by virtue of the rotary reactor, a necessary micro-gravity environment is provided, so that mass transfer is further enhanced and proliferation of the cells is achieved.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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