34results about How to "Verify impact" patented technology

The invention discloses a bonding reliability testing device, especially relates to a bonding reliability testing device of simulating the transverse vibration condition, and brings forward a controlmethod according to actual conditions. The testing device comprises a framework body, a main loading platform, a bonding testing sample piece, a left / right vibration loading platform and a central controller. Vibration generated by the left / right vibration loading platform in the frame body acts on the bonding testing sample piece. The vibration loading platform is driven by a motor, and Z-direction loading of a main loading platform is followed. The control method of the testing device comprises steps of receiving instruction and feeding back information, conducting coordination control of each part of the testing device and the like. Through Z-direction following of the main loading axis and transverse vibration loading of the test piece, tension property testing under the transverse vibration condition is realized. The testing device is more suitable for performance testing in the actual service environment and can be widely applied to tension testing and fatigue testing of bondingreliability testing under transverse vibration condition.

The invention discloses a four-system pseudo-range positioning method based on DCB correction. The method comprises the following steps that firstly a four-system combined positioning system correctsthe satellite clock error by using the DCB data provided with an IGS website in the pseudo-range single point positioning process; a weight matrix P is determined accordingly by using the satellite elevation; quality evaluation is further performed on the observation data, and the resolving proportion is determined according to the quality of the data; and the required observation epochs are screened so as to obtain the positioning resolving result. The disadvantage of low positioning accuracy can be overcome, the positioning accuracy and stability are better than those of other combination modes under various environments, and the positioning accuracy can still be enhanced by setting of the PDOP threshold under the condition of reduction of the continuous positioning capability even in the complex environment; the influence of the hardware delay deviation on the positioning result can be verified by DCB correction of the satellite clock error, and enhancement of the single frequency data accuracy is obvious; secondly, the method has substantial meaning in further developing the application range of pseudo-range positioning and defining the DCB correction effect.

The present invention relates to a network attack simulation method and system for power grid cyber-physical systems. The method includes: a power system simulator performs simulation according to a preset power system event list, and sends the simulation results to the network attack network through the information system simulator. Emulator; establish a simulated attack event in the network attack simulator, and send the simulated attack event to the power system simulator through the information system simulator; the power system simulator updates the power system event list according to the simulated attack event, and according to the power system event The list is simulated; the technical solution provided by the present invention adds a network attack simulation platform under the environment of the cyber-physical system of the power grid, and sets corresponding Attack scale and intensity, observe and verify the impact of network attacks on cyber-physical systems of power grids and the role of protection measures in the event of system instability.

The invention provides the application of lncRNA11496 in the diagnosis and treatment of toxoplasmosis, which belongs to the technical field of biomedicine and molecular biology. The study found that NONMMUG011496 (lncRNA11496) was significantly down-regulated in the brain tissue of Toxoplasma gondii-infected mice infected by microarray; at the same time, the expression of lncRNA11496 in the brain tissue of Toxoplasma gondii chronically infected mice affected the proliferation, differentiation and apoptosis of nerve cells, and Toxoplasma infection is closely related. lncRNA11496 is a non-coding RNA discovered for the first time in brain tissue chronically infected by Toxoplasma gondii. Therefore, lncRNA11496 can be used as an important biological target, which provides a basis for the diagnosis of toxoplasmosis encephalopathy and the development of anti-toxoplasma drugs based on lncRNA11496, which has good practical application value.

The invention discloses a three degree-of-freedom parallel connection mechanism with the adjustable working space. The three degree-of-freedom parallel connection mechanism with the adjustable working space comprises a fixed platform (1), a movable platform (2) and three branch chains (4, 5 and 6). The three branch chains comprise first sliding rails (41, 51 and 61), first sliding blocks (42, 52 and 62), first stand columns (43, 53 and 63), first movable pairs (44, 54 and 64), first cylinder pairs (45, 55 and 65), first connection rods (46, 56 and 66) and first sphere pairs (47, 57 and 67) respectively, wherein each first sliding rail is horizontally installed on the corresponding fixed platform; each first stand column is vertically installed on the corresponding first sliding block; each first sliding block is connected with the corresponding first stand column; each first movable pair is connected with the corresponding first stand column and the corresponding first cylinder pair; one end of each first connection rod is connected with the corresponding first cylinder pair; the other end of each first connection rod is connected with the corresponding first sphere pair; each first sphere pair is installed on the corresponding movable platform. Distortion generated when the stand columns are stressed is reduced, and the three degree-of-freedom parallel connection mechanism with the adjustable working space has the advantages of being convenient to install, shortening the adjustment time, improving the efficiency, improving the precision and the like.

The invention relates to an optical engine, wherein a transparent cylinder sleeve is arranged between a cylinder body and a cylinder cover of the engine, a piston is the original piston of the engine, and the length of the transparent cylinder sleeve is greater than the stroke of the engine. The invention specifically provides the optical engine which is based on rapid transformation of a multi-cylinder prototype machine and is applicable to researching the formation of a flow field, spray and mixed gas in the cylinder of the engine, in particular to researching the formation of the mixed gasof the optimized engine and a direct-injection engine in the cylinder.

The invention discloses a transformer interference source test system for mixed acquisition of analog and digital quantities, which includes an analog input interface unit, a front-end acquisition device, a main control CPU module and a host computer; the front-end acquisition device includes a built-in multi-channel voltage divider module , pre-sampling module and power module, the pre-sampling module is connected to the power module; the main control CPU module includes FPGA, microprocessor and optical fiber interface unit; analog input interface unit, built-in multi-channel voltage divider module, pre-sampling The module and the FPGA are connected in sequence, the FPGA, the microprocessor and the host computer are connected in sequence, and the optical fiber interface unit is connected to the FPGA. The present invention is a multi-sampling system, which collects the original analog signal of the electronic transformer and the distribution parameters to the ground and the output digital signal of the collector and the merging unit at the same time, adopts real-time Ethernet to collect the sampling value data sent by the merging unit, and converts the final Data is compared with raw data to remove the effect of capacitive currents in the system.