6results about How to "Good performance requirements" patented technology

The utility model relates to the technical field of COME boards, and discloses a COME board with multiple expansion interfaces, which is integrated with a group of PCIe (Peripheral Component Interconnect Express) expansion modules with PCIe 3.0 * 8 interfaces and two groups of PCIe 2.0 * 8 interfaces. The USB interface module is provided with four paths of USB2.0 interfaces and four paths of USB3.0 interfaces; an onboard storage interface module with three paths of SATA3.0 interfaces; the network interface module is provided with two paths of 10 / 100 / 1000Mb self-adaptive gigabit network ports; the video output interface module is provided with an HDA interface, an HDMI interface, a VGA interface and an LVDS interface; according to the utility model, through modularized integration and scientific layout, anti-interference of a high-speed interface, easy plugging of a common interface and flexible configuration of a memory are realized, high-performance scene requirements are met, and diversified applications and special industrial expansion are adapted through multiple types of interfaces; and the three-dimensional anti-drop structure of the USB interface is fixed with the board body, so that the connection stability and the mechanical strength are enhanced.

This invention discloses an electromagnetic wave absorbing material based on in-situ grown carbon nanotubes from FeCoNi alloy and its preparation method. First, an iron-based metal-organic framework is synthesized via a hydrothermal reaction, followed by ultrasonication, washing, and drying to obtain iron-based metal-organic framework nanoparticles. Then, the surface of the iron-based metal-organic framework nanoparticles is modified using polyvinylpyrrolidone, and Co is adsorbed onto them. 2+ and Ni 2+ Polyvinylpyrrolidone (MOF)-modified iron-cobalt-nickel (FeCoNi)-based metal-organic framework (MOF) nanoparticles were obtained. Finally, melamine and the cobalt-nickel-adsorbed MOF-modified FeCoNi-based MOF nanoparticles were subjected to a carbothermal reduction reaction under a nitrogen atmosphere to obtain the electromagnetic wave absorbing material. This invention relies on MOF porous templates and metal nanoparticles to catalyze the growth of carbon nanotubes, improving conductivity loss. Simultaneously, the interfacial polarization between the generated FeCoNi nanoparticles and the carbon matrix optimizes impedance matching and enhances electromagnetic wave absorption performance.

The invention provides rolling contact damage resistant nano ceramic particle reinforced train wheel steel and a preparation method thereof, and belongs to the technical field of preparation of train wheel steel. According to the steel for the wheel, Al powder, Ti powder and multi-walled carbon nanotubes are mixed to obtain mixed powder, and TiC / Al intermediate alloy is prepared through ball milling, cold press molding and hot press sintering; the TiC / Al intermediate alloy is crushed into alloy chippings, the alloy chippings are placed at the bottom of a steel ladle, molten steel of the wheel steel is tapped to the steel ladle, and the wheel steel is obtained after vacuum degassing refining, continuous casting, forging and heat treatment. The introduction method of the TiC / Al intermediate alloy carrier is adopted, the problems of particle aggregation, segregation, floating or sedimentation and the like caused by poor wettability and density difference when nanoparticles are directly added are effectively avoided, and the rolling contact damage resistance of the wheel steel is improved by introduction of the TiC / Al intermediate alloy carrier; and the high-performance requirements of modern rail transit on the steel for the wheels are met.

The invention discloses a multi-mode intelligent analyzer based on an FPGA, and the analyzer comprises a signal input unit which is used for carrying out the filtering processing of two paths of inputted analog signals; the analog-to-digital conversion unit is used for performing analog-to-digital conversion processing on each path of filtered analog signal to obtain a corresponding time domain signal; the wireless communication module is used for receiving a preset parameter threshold value set by a user; the FPGA main control unit comprises two parallel signal processing assembly lines which are used for carrying out frequency domain transformation on the received two paths of time domain signals in parallel to obtain frequency domain signals; the intelligent judgment module is used for performing parameter analysis on the frequency domain signal to obtain parameter characteristic data, and judging a preset parameter threshold value and the parameter characteristic data to obtain a judgment result; the display information fusion module is used for fusing the time domain signal, the frequency domain signal, the parameter characteristic data and the discrimination result to obtain a fused video data stream; and the display unit is used for displaying the fused video data stream and realizing multi-modal data display on the same screen.

The utility model discloses a kind of vertical take-off and landing platforms with high-strength buffering, including platform body, support structure and buffer damping system. Belong to the technical field of aircraft take-off and landing equipment. Platform body adopts honeycomb sandwich structure, upper and lower surface is high-strength alloy steel plate, and middle is regular hexagon honeycomb aluminum matrix composite core body;The column of support structure is hollow tubular, bottom is equipped with adjustable height pedestal, and form triangular stable structure by transverse connecting beam and oblique support beam;Platform body lower surface double-layer steel plate is equipped with staggered distribution shock absorber spring and hydraulic damper between. In addition, column pipe wall is made of fiber reinforced resin matrix composite material and built-in spiral reinforcing rib, and platform edge is equipped with carbon fiber reinforced plastic and memory alloy wire woven crash barrier. The utility model discloses vertical take-off and landing platform realizes high-strength, lightweight, excellent shock absorption and environmental adaptability, and wide application range.

The utility model discloses a novel bushing which comprises a first bushing body, a second bushing body is arranged on one side of the first bushing body, an assembling mechanism is arranged between the first bushing body and the second bushing body, and the end, close to the second bushing body, of the first bushing body is fixedly connected with a first semicircular plate. A second semicircular plate is fixedly connected to the end, close to the first bush, of the second bush, a plurality of mounting holes are formed in the front face and the back face of the first bush, and the first bush and the second bush are made of the same material and are sequentially provided with an outer protection layer, a wear-resisting layer and a base layer from outside to inside. The lining adopts a layered structure of the outer protective layer, the wear-resistant layer and the base layer, the outer protective layer effectively prevents the surface of the lining from being oxidized, the wear-resistant layer reduces friction loss with matched parts, the base layer provides structural strength support, the service life of the lining is prolonged, the maintenance cost is reduced, and the requirement of the industrial field for high performance of the lining is met.