Abstract: A cooling device of a heating element for an immersion type liquid cooling server, and a manufacturing method for the cooling device. The cooling device comprises: a metal substrate provided on the heating element and covering same. The metal substrate is adjacent to the surface of the heating element. The surface of the metal substrate distant to the heating element comprises a porous metal covering layer located above the heating element and covering same. By providing a metal substrate having a porous metal covering layer on the surface of a heating element, vaporization core is improved, the boiling performance of the heating element is improved, and an efficient heat-dissipating effect on the surface of the heating element is achieved.

Abstract: The present invention provides a server cooling system and device, the system comprising a shell accommodated with a cooling liquid, a condensation module, a mechanical arm, a buffer bin and a control module. The server cooling system of the present application can automatically take out and place in a heating element, and avoids the gasified cooling liquid steam from leaking, thus improving the safety factor during operation, and reducing the loss of the cooling liquid.

Abstract: The present invention discloses a visible near-infrared ultra-broadband absorber and its preparation method, comprising a substrate and a five-layer optical film, wherein the bottom film is a bottom metal absorbing layer; a top germanium layer is provided on the top of the bottom metal absorbing layer; and remaining three layers are provided on the top of the top germanium layer with gradually decreasing refractive indexes from the bottom to the top. The present invention is based on the blocking effect of the metal absorbing layer and broadband anti-reflection film stack of the germanium layer, which has realized visible near-infrared ultra-broadband absorption with high efficiency and good angle insensitivity, and has fully surpassed traditional absorbers in terms of performances.

Abstract: The belt ply feeder and a feeding method include: when a belt ply is conveyed to the front end of a conveying forming board, a force is exerted by a perpendicular adjustment device to drive a conveying forming board bracket to swing upward and rotate around a pivot shaft of a rack to positions at which the upper surface of the conveying forming board is tangential to the periphery of a belt ply drum. According to this arrangement, the belt ply is tangential to the belt ply drum all the time and a belt ply is in firm contact with a belt ply drum regardless of the size of the belt ply drum when wrapping the belt ply around the belt ply drum. Accordingly, the quality of tire shaping can be improved.

Abstract: An incident angle insensitive color filter is disclosed, comprising a substrate, wherein several cylindrical gratings, made of silicon, are arranged in a regular hexagon shape on the substrate which is made up of fused quartz. A manufacturing method of the aforesaid filters is also disclosed. Different from the traditional chemical filters and traditional interference filters, incident angle insensitive color filters in the present invention are based on two-dimensional grating structure and make use of the huge refractive index contrast in the grating layer, by which the resonance is excited the resonance via the coupling between the regions with high/low refractive index, so as to achieve the incident angle insensitive filtering effects. The manufacturing method of incident angle insensitive color filters in the present invention is simple and of low cost, which is suitable for large scale mass manufacture.