Abstract: A switching power supply structure includes a housing, a base and circuit boards, where the housing and the base enclose a cavity for accommodating the circuit boards, and a first heat dissipation channel is formed at an opening of the cavity; the housing consists of a top plate and two side plates, and a plurality of heat dissipation holes, including polygonal holes, are reserved in the housing in an array form, which forms a second heat dissipation channel. The first and second heat dissipation channels are provided, with the heat dissipation holes of the second heat dissipation channel having polygonal structures, which enlarges the heat dissipation area, achieving simple structure and good heat dissipation effect. Furthermore, due to the structural optimization of the housing and the base, the automation degree of product assembly is improved, thus lowering the cost of materials for the entire power supply housing structure.

Abstract: An electrochromic device with side-by-side structure including a common electrode unit, at least one color-changing unit and an electrolyte layer is provided. The common electrode unit includes an electrode layer and an electrode protection layer disposed on the electrode layer. The color-changing unit includes a transparent conductive layer and a color-changing layer disposed on the transparent conductive layer. The common electrode unit and each color-changing unit are arranged on the same plane with an insulating region between two adjacent units. The electrolyte layer covers and connects the electrode protection layer of the common electrode unit and the color-changing layer of each color-changing unit.

Abstract: An electrochromic device with side-by-side structure including a common electrode unit, at least one color-changing unit and an electrolyte layer is provided. The common electrode unit includes an electrode layer and an electrode protection layer disposed on the electrode layer. The color-changing unit includes a transparent conductive layer and a color-changing layer disposed on the transparent conductive layer. The common electrode unit and each color-changing unit are arranged on the same plane with an insulating region between two adjacent units. The electrolyte layer covers and connects the electrode protection layer of the common electrode unit and the color-changing layer of each color-changing unit.

Abstract: The present disclosure discloses a method for screening malt for brewing red beer, and belongs to the field of beer brewing. The method takes different kinds of malt samples as examples, and after whole malt mashing and dilution, mashed wort is diluted with water to a chroma value of 50-80 EBC; and when the red intensity of the mashed wort having a chromatic value of 50-80 EBC is 0.209-0.289, the measured malt can be fermented and brewed into red beer. The method can screen malt for red beer brewing simply and quickly, is of important practical significance for guiding the production of red beer, and lays an important foundation for further brewing red beer with different malt.