Abstract: The present invention discloses a DNA barcode, a primer group and application for screening a total soluble protein content index of Floccularia luteovirens, belonging to the technical field of screening of edible fungi germplasm resources. Compared with a traditional breeding method and other existing DNA barcode technologies, the present invention has the advantages of time saving, labor saving, money saving, accuracy and high efficiency, plays a positive role in original place identification and genetic breeding of high-quality Floccularia luteovirens, and also provides an effective method for identification and protection of germplasm resources.

Abstract: The present invention discloses a DNA barcode for screening Floccularia luteovirens with high antioxidant activity, belonging to the technical field of screening of edible fungi germplasm resources. Compared with a traditional breeding method and other existing DNA barcode technologies, the present invention has the advantages of time saving, labor saving, money saving, accuracy and high efficiency, plays a positive role in genetic breeding of high-quality Floccularia luteovirens, and also provides an effective method for identification and protection of germplasm resources.

Abstract: An electrode plate slitting cutter holder includes a frame, an upper cutter holder, and a lower cutter holder. Two ends of the upper cutter holder are rotatably connected to the frame. The lower cutter holder is located below the upper cutter holder and arranged parallel to the upper cutter holder. Two ends of the lower cutter holder are rotatably connected to the frame. One of the upper cutter holder and the lower cutter holder is provided with a double-edged cutter, and another one of the upper cutter holder and the lower cutter holder is provided with a cutter groove corresponding to a position of the double-edged cutter and configured to cooperate with the double-edged cutter.

Abstract: The application provides a display apparatus. The display apparatus includes: a touch panel, configured to receive a touch operation and comprising a touch film and a display panel configured to display an image; a backlight module configured to provide a backlight source to the touch panel and including a backplane, a reflective sheet, a light guide plate, an optical film and a light source located on one side of the backplane; a touch pad, configured to drive and control the touch film; and a plurality of flexible circuit boards, through which the touch film is electrically connected with the touch pad, and which are located on a same side of the touch film.

Abstract: A virulence factor FsPL gene from the sugarcane pokkah boeng disease and use thereof are provided. The virulence factor FsPL gene from the sugarcane pokkah boeng disease has a sequence set forth in SEQ ID NO: 1. The present invention reveals a gene FsPL that is related to the pathogenicity of F. sacchari. Preliminary analysis shows that the deletion of the gene affects the ability of hyphae to penetrate and further affects the pathogenicity of pathogens. This provides a basis for the molecular mechanism of the pathogen infection and pathogenic process.

Abstract: The present invention discloses a post-processing method for a special seven-five axis linkage machine tool, comprising: building a multi-body kinematic model according to the structure of the machine tool, and building the multi-body kinematic model according to the sequence of workpiece-turntable-machine tool-cross beam-ram-milling head-cutting tool; establishing position coordinate transformation matrices according to the built multi-body kinematic model to obtain the matrices of cutter location points and tool orientation vectors; solving transformation equations of every motion axis of the machine tool and cutter location point coordinates according to the matrices of cutter location points and tool orientation vectors; building a corresponding relationship between the cutter location point coordinates and every motion axis of the machine tool based on a geometric level, and solving specific values of C-axis rotation angle of milling head and C2-axis rotation angle of the turntable.

Abstract: The invention disclosed a friction coefficient measuring device under the condition of material periodic deformation. The measuring device is mainly composed of a torque sensor, a sleeve system, an upper sample, a lower sample, a flexible fixture, an air bearing, a clamping system, a tension-compression sensor, a support rod, and a support table. A working module of a friction-wear testing machine is connected with the torque sensor and then connected with the sleeve system to fix the upper sample. A rotating module of the friction-wear testing machine is used for connecting the flexible fixture to fix the lower sample. The tension-compression sensor can accurately measure the radial force between the upper sample and the lower sample. The torque sensor can measure the load torque values of the upper sample and lower sample during testing.

Abstract: The invention discloses a detection method for radial deformation of flexspline of harmonic reducer under installation eccentricity state, taking the center of wave generator as the origin, the reference coordinate system is established in the method, and the offset between the center of wave generator and the pivotal center of rotary table is calculated by measuring the standard circle coaxial with the wave generator; the radial deformation function and the offset of wave generator under eccentricity state are taken to the theoretical ellipse eccentricity mathematical model to obtain the parameters of the actual ellipse; the offset and ellipse parameters are taken into the radial runout correction model of the flexspline to obtain the correction model under eccentricity state; the flexspline deformation function is measured and the correction model is taken to obtain the radial deformation function of the flexspline under standard state.

Abstract: The invention disclosed a friction coefficient measuring device under the condition of material periodic deformation. The measuring device is mainly composed of a torque sensor, a sleeve system, an upper sample, a lower sample, a flexible fixture, an air bearing, a clamping system, a tension-compression sensor, a support rod, and a support table. A working module of a friction-wear testing machine is connected with the torque sensor and then connected with the sleeve system to fix the upper sample. A rotating module of the friction-wear testing machine is used for connecting the flexible fixture to fix the lower sample. The tension-compression sensor can accurately measure the radial force between the upper sample and the lower sample. The torque sensor can measure the load torque values of the upper sample and lower sample during testing.

Abstract: Disclosed is a method for preparing a rare-earth modified Keggin-type heteropolyacid-supported catalyst. Carbon nanotube is used as support, and is oxidized to form openings and cut into short tubes by an acidic solution. Under the action of metal chlorides and alcohol solvents, the end and the defect sites on the side walls of the carbon nanotubes are combined with hydroxyl groups to obtain hydroxylated carbon nanotube. In this way, the surface properties of the carbon nanotube are changed, and the active components are more easily and firmly adsorbed on the carbon nanotube, thus the stability of the catalyst is improved.

Abstract: The present disclosure discloses a detecting device and method for acoustic emission on high-frequency motion rubbing pair surface. A linear reciprocating slide system with high efficiency and high conductivity is designed based on the method. Reciprocating linear slide system is the main structure of the detection device which is is composed of probe plate, tight clips, vacuum cover, slip wire and insulation box. The reciprocating slide solves the problem of data distortion caused by high frequency jitter when connecting ordinary data lines, and can realize stable and reliable connection between high frequency reciprocating rubbing experiment and acoustic emission detection equipment. The acoustic emission probe on the surface of rubbing pair connects with the preamplifier by linear reciprocating slide.

Abstract: Disclosed is a method for preparing a rare-earth modified Keggin-type heteropolyacid-supported catalyst. Carbon nanotube is used as support, and is oxidized to form openings and cut into short tubes by an acidic solution. Under the action of metal chlorides and alcohol solvents, the end and the defect sites on the side walls of the carbon nanotubes are combined with hydroxyl groups to obtain hydroxylated carbon nanotube.

Abstract: The present disclosure discloses a detecting device and method for acoustic emission on high-frequency motion rubbing pair surface. A linear reciprocating slide system with high efficiency and high conductivity is designed based on the method. Reciprocating linear slide system is the main structure of the detection device which is is composed of probe plate, tight clips, vacuum cover, slip wire and insulation box. The reciprocating slide solves the problem of data distortion caused by high frequency jitter when connecting ordinary data lines, and can realize stable and reliable connection between high frequency reciprocating rubbing experiment and acoustic emission detection equipment. The acoustic emission probe on the surface of rubbing pair connects with the preamplifier by linear reciprocating slide.

Abstract: The invention disclosed an error modeling method for six degree-of-freedom robot end effector space-curve trajectory. More specifically, the invention is focused on end effector continuous space-curve trajectory tasks, and provides an error model taking into account of the influence of interpolation algorithm and joint linkage parameter error. This method selects key trajectory points on the ideal trajectory and by inverse solution converts them to the joint space, and performs interpolation; meanwhile the linkage parameter error taken into account to obtain the actual end effector position. The distance from the planned trajectory point to the ideal trajectory curve is used as the comprehensive error to reflect the deviation from the planned trajectory to the ideal trajectory. A simple and practical error model is obtained, which provides a theoretical basis for controlling the end effector-tracking accuracy.