9results about How to "Test applicable" patented technology

The invention provides a nano enzyme as well as a preparation method and application thereof. The preparation method of the nano enzyme comprises the following steps: adding a stabilizer into a preheated solvent, and carrying out ultrasonic treatment; then adding ferric salt and cobalt salt, and adding alkali to adjust the pH value of the solution; then transferring the solution into a reaction kettle for reaction; and after the reaction, washing and separating to obtain the product. The obtained nano-enzyme is appropriate and uniform in particle size and good in dispersity, the enzyme activity is as high as 9.56 U / mg, and the application of the nano-enzyme in immunochromatography detection and plant canker prevention and treatment is widened. When the immunochromatography detection card prepared from the nano enzyme is used for detecting human hemoglobin, the detection limit can reach 0.05 ng / mL and is at least 10 times lower than that of a commercially available kit. When the nano-enzyme suspension is used for preventing and treating the kiwifruit canker, the nano-enzyme suspension with the concentration larger than or equal to 0.1 mg / mL is used, and the plant canker can be well controlled.

The invention discloses a PCIE (Peripheral Component Interface Express) link training device and method, computer equipment and a storage medium, and relates to the technical field of PCIE links, and the method comprises the steps that a host end identifies an in-place signal of the PCIE link training device, and confirms that the current PCIE link rate is a preset rate; sending a test request to the host end, so that the host end returns a test signal according to the test request; receiving a test signal from the host end, converting the test signal to form an eye pattern, and combining one or more eye patterns to form an eye pattern test result; and acquiring a parameter value corresponding to the maximum value in the eye pattern test result as an optimal parameter value, and configuring the optimal parameter value to the host end. According to the method and the device, the parameters adaptive to the link can be obtained according to the type of the link, and the link and the adaptive parameters form the reference database, so that the reference database is used as parameters of similar links under the condition that other similar links appear.

The invention relates to the technical field of optical thin films, in particular to a 190-230nm-wavelength metal dielectric enhanced reflecting film and a preparation method thereof.The metal dielectric enhanced reflecting film comprises a substrate, a main reflecting layer and a plurality of dielectric enhanced layers, the main reflecting layer is an Al layer, the dielectric enhanced layers are formed by alternately stacking MgF2 layers and Al2O3 layers, the number of the dielectric enhanced layers is not larger than 3, and the thickness of the dielectric enhanced layers is not larger than 3. The physical thickness of the Al layer is 180 + / -2% nm, the physical thickness of the MgF2 layer is 26.43 + / -2% nm, and the physical thickness of the Al2O3 layer is 36.65 + / -2% nm; in the MgF2 layer, the evaporation rate of MgF2 is 0.8 + / -0.1 nm / s, and in the Al2O3 layer, the evaporation rate of Al2O3 is 0.5 + / -0.05 nm / s. The metal medium enhanced reflecting film has stable high reflectivity in the wave band of 190-230nm, the compactness and firmness between the film layers are high, and the durability is good.

The application belongs to the technical field of valve testing, and specifically provides a valve testing device, which comprises a detection table, one side of the detection table is provided with a pre-detection feeding mechanism, the side of the detection table away from the pre-detection feeding mechanism is provided with a screwing mechanism, the front side of the detection table is connected with a discharging table, the rear side of the detection table is provided with an insertion type detection assembly, and the insertion type detection assembly is provided with a discharging mechanism; the valve testing device can automatically adjust valve clamping and testing parameters according to the specific size of the valve; in addition, the application of a visual perception system is combined, a pre-action principle is adopted, the valve body is automatically clamped and tested during valve testing, and unqualified products are automatically marked, so that manual intervention is not needed, the testing time is short, and the degree of automation is high.

The present invention discloses a method for generating and optimizing test cases for RESTful API in an information-physical system, comprising the following steps: (1) manually analyzing the difference between RESTful API in an information-physical system and RESTful API in the Web, and summarizing the characteristics of test cases for RESTful API in an information-physical system; (2) designing and generating test cases based on the characteristics of test cases for RESTful API in an information-physical system and proposing three optimization goals; (3) minimizing the test suite using the NSGA‑Ⅱ algorithm according to the optimization goals to obtain a minimized test suite. The present invention is used to solve the testing and optimization problems of RESTful API in an information-physical system, realize the generation and screening of test cases, improve the fault detection capability while saving time costs, and optimally meet various cost and efficiency goals.

The application discloses a preparation method of an electrochemical sensor for simultaneously detecting creatinine and uric acid, and relates to the technical field of medical detection. The technical scheme points of the application are as follows: ethanol, ethylene glycol and deionized water are uniformly mixed, then carbon nanotubes and anhydrous copper acetate are uniformly mixed with the mixture, and then the mixture is subjected to hydrothermal reaction, and after the reaction is completed and the mixture is cooled, the carbon nanotube / copper oxide / cuprous oxide nanocomposite is obtained by purification. In the application, the electrochemical sensor prepared by using the copper nanoparticle-related carbon nanocomposite can enhance the electron transmission capacity, thereby improving the electrochemical activity; meanwhile, the application can be used for detecting two biological molecules of creatinine and uric acid, has a low detection limit and a wide detection linear range, the creatinine detection limit is 0.002mM, the detection range is 0.01mM-1mM, the uric acid detection limit is 0.0004mM, and the detection range is 0.001mM-5mM.

The application discloses a kind of negative pressure three-axis automatic movement nondestructive testing device, including control system, XY moving assembly and scanning component.XY moving assembly contains X axis, Y axis and power component, X axis and Y axis are all by guiding guide rail and its two ends suction assembly constitute, suction assembly has the Z axis movement function of control vacuum chuck contact or separate from detection plane.Control system controls the suction assembly of X axis and Y axis to be alternately adsorbed in detection plane and keep still, while driving the shaft not adsorbed together or relative to power component moves, to realize the two-dimensional self-adapting step of device on detection plane.Scanning component carries probe and executes scanning along with device movement.The application further discloses a kind of negative pressure three-axis automatic movement nondestructive testing method.The application does not need external track, avoids workpiece surface damage by non-sliding step mode, and negative pressure adsorption makes it compatible with non-magnetic material, realizes to large plate high efficiency, high precision, full-automatic nondestructive testing.

This invention discloses a method for detecting recording devices based on electromagnetic signals, comprising the following steps: acquiring radio frequency signals in the environment; performing spectrum analysis on the radio frequency signals after filtering, denoising, and smoothing; searching for peak points belonging to the frequency band of the electromagnetic radiation signal of the recording device in the spectrum, and calculating the average peak interval; matching the peak interval with the frequency feature library of the recording device's AD conversion drive signal, and confirming the detection of the recording device if they are equal. This invention can detect unknown and concealed recording devices by utilizing the electromagnetic radiation signals generated by the AD conversion of the recording device during normal operation, and can locate the device by multiple detections from different directions. It is suitable for private occasions such as confidential meetings and private conversations, with an effective distance of 20 centimeters.

The invention discloses a conveying and detecting device and method for processing aluminum alloy plates, comprising a conveying and loading mechanism, a unloading mechanism and a detecting mechanism, wherein the detecting mechanism comprises a detecting platform and a first imaging component, a second imaging component and a third imaging component, wherein the first imaging component comprises a first camera, and a first plane light source plate is arranged opposite to the first camera; the second imaging component comprises a second camera, and an annular light source plate is arranged below the second camera; the third imaging component comprises a second plane light source plate arranged below a detecting hole, and a surface camera is arranged on one side of the second plane light source plate; through the layout of multiple groups of cameras and multi-angle light sources, the horizontal arrangement of the first camera and the plane light source plate, and the annular light source corresponding to the second camera forms diffuse light, reduces the formation of high-intensity light, and reduces the interference of ambient light sources, effectively avoids the detection interference caused by surface reflection, and combines with the adjustable third imaging component to realize comprehensive detection of the bottom surface of the aluminum alloy plate.