Abstract: A fermentation method for mupirocin, the method comprising performing shake flask seed culture, seed tank culture, fermentation culture, feed culture. The fermentation method is not only suitable for industrial mass production, but also improves the fermentation potency of mupirocin, which can be stably maintained to be 8000 ug/ml or above.

Abstract: This utility model discloses a building block and track building block toy including four of single components and eight of magnetic spheres; each one of single components comprises a first connecting rod, a second connecting rod and a third connecting rod; the first connecting rod, the second connecting rod, and the third connecting rod are sequentially connected to form a “” shape; a first insertion portion is disposed on an end of the first connecting rod, and another one of first insertion portion is disposed on an end of the third connecting rod; second insertion portions extend vertically at both ends of the second connecting rod; each of the second insertion portions is provided with one of inserting holes. A plurality of the building blocks are able to be adsorbed together by magnetic spheres and assembled into various shapes.

Abstract: An adjustable folding stand for supporting an electronic device is described herein. The stand has a device supporting platform, base platform, foldable connector disposed between and pivotably connected to each of the device supporting platform and the base platform, first supporting arm on one side of the foldable connector, and second supporting arm on an opposite side of the foldable connector. The first supporting arm and the second supporting arm are each pivotably connected to the device supporting platform and to the base platform. The folding stand is attached to the electronic device such that the device supporting platform is coupled to an underside surface of the electronic device. The stand is pivotably moveable to achieve multiple positions including a flattened configuration, a first folded configuration, and a second folded configuration for supporting the electronic device in upright orientations.