42results about How to "Improve the impedance effect" patented technology

The invention relates to a magnesium alloy product surface modification treatment method. The method includes working procedures of degreasing, pickling activation, alkali washing, and chemical modification, wherein an adopted modification solution comprises phosphoric acid, calcium hydroxide, sodium fluoride, zinc phosphate and the like. The method not only can meet the requirements of environmental protection and improve corrosion resistance, adhesive power, low impedance and other properties of a magnesium alloy, but also saves costs.

Structures and configurations for planar ultrawideband modular antenna arrays. One example of a PUMA array includes an unbalanced RF interface, a lattice of horizontal dipole segments directly fed with the unbalanced RF interface, the lattice being arranged in either a dual-offset dual-polarized configuration or a single-polarization configuration, and a metallic plate capacitively-coupled to the lattice of horizontal dipole segments and pinned to a ground plane with a first plated via.

The invention relates to the technical field of line protection, and discloses a current-limiting reactor structure for limiting overcurrent in a power system, including a base. The height is too high to continue to contact the spring contactor. At this time, the elastic contactor will disengage from the contact bracket and quickly reset under the action of its own elastic force and contact with the contact bracket II, which shortens the break time during the replacement contact process of the elastic contactor and further improves the stability of the device. The reactor is in contact with the contact bracket II again. At this time, the reactor II and the reactor I are connected to the line together, thereby improving the inductive reactance effect, thereby realizing the effect of adjusting the inductive reactance of the reactor without dismantling and installing. , to avoid the problem of cumbersome operation caused by the disassembly and installation of the traditional reactor when it needs to be adjusted, and to improve the practicability of the device.

The invention provides a multilayer-polymer surface functional modified electronic fiber cloth flexible high-frequency CCL (copper-clad laminate) and a preparation method thereof. The high-frequency CCL comprises a graphene oxide metallized reinforced nanofiber layer located in the middle layer and conductive high-molecular polymer-insulating high-molecular polymer copolymer coated electronic fiber cloth layers located on two sides. The multilayer-polymer surface functional modified electronic fiber cloth flexible high-frequency CCL has three layers of thin films including the graphene oxide metallized reinforced nanofiber layer which is located in the middle layer and switched between a crystalline metal oxide form and an amorphous metal microform and the polymer copolymer coated electronic fiber cloth layers which are located on the two sides of the graphene oxide metallized reinforced nanofiber layer and have amorphous-state and crystal-state microstructures, the three layers of thin films are subjected to press fit with first copper foil and second copper foil located on the outer layer finally, and the high-frequency CCL which has good tensile property, elasticity modulus andbending strength, is capable of effectively resisting ultraviolet light and increasing light transmittance and has good bonding strength with the copper foil and lower stripping strength is prepared.

The present invention provides a traffic security analysis and modeling method and system. The method includes: importing traffic into a protocol pool corresponding to a bypass traffic mirror according to different protocols, and compressing the traffic in the protocol pool and putting it into a cache The traffic distribution is used for threat analysis. The threat analysis includes analyzing the content and frequency of the traffic packets to form a traffic threat model after unpacking the traffic. The trusted computing component encrypts and decrypts the traffic threat model. The method realizes traffic transmission, and at the same time extracts the characteristic information of abnormal traffic, adopts the method of machine learning and immunity to model the current and future abnormal traffic characteristic information to form a traffic security model. Based on this method, a traffic safety analysis and modeling system is also proposed. The present invention adopts the N-Tier method for layering, and in the network traffic transmission process using the industrial control protocol, based on the network traffic mirror bypass system, non-invasive mirroring of the network traffic is realized.