34results about How to "Easy to filter out" patented technology

A hybrid coupler (66, 67; 72, 73) has four ports and is capable of coupling radio frequency signals having a certain frequency from at least one port to at least one other port. The hybrid coupler (66, 67; 72, 73) is implemented as a differential coupler arranged to couple differential radio frequency signals. With such a hybrid coupler a power amplifying circuit can be produced which has sufficiently low ripple on the supply voltage to be integrated together with more sensitive radio circuits, and which is also insensitive to load mismatch such that an isolator can be avoided. A differential hybrid coupler allows the output current to be shared between four transistors or amplifiers, thus reducing the amplitude of the ripple. Further, the frequency of the ripple is four times the operating frequency of the circuit, which makes it much easier to filter out the ripple.

The invention discloses a screening device for production of a composite stabilizer. The screening device comprises a bottom plate, wherein a supporting plate seat is fixedly connected to the top of the bottom plate, a sliding groove is formed in the top of the supporting plate base, base blocks are connected to the front end and the rear end of the top of the inner cavity of the sliding groove ina sliding mode, stand columns are fixedly connected to the tops of the two groups of base blocks, Z-shaped plates are symmetrically and fixedly connected to the left side wall and the right side wallof the stand columns, lug blocks are fixedly connected to the top of the Z-shaped plates, a screening box is fixedly connected between the lug blocks, a first rotating shaft is fixedly connected to the right side wall of the rear side base block, a screening motor is arranged at the front end of the top of the bottom plate, a driving shaft is connected to the right side of the screening motor, abottom block is fixedly connected to the right end of the driving shaft, a second rotating shaft is fixedly connected to the bottom of the right side wall of the bottom block, and a linkage rod is rotationally connected between the second rotating shaft and the first rotating shaft. The screening device is reasonable in structural design, the screening efficiency of an operator is improved, the screening cost is reduced, the screening efficiency of the operator is improved, and the screening cost is reduced.

The present invention discloses methods, systems, and tools for unified semantic ranking of compositions of ontological subjects. The method breaks a composition into a plurality of partitions as well as its constituent ontological subjects of different orders and builds a participation matrix indicating the participation of ontological subjects of the composition in other ontological subjects, i.e. the partitions, of the composition. Using the participation information of the ontological subjects into each other a similarity matrix is built from which the semantic importance ranks of the partitions of the composition are calculated. The method, systematically, enables the calculation of semantic ranks of the ontological subjects of different orders of the composition. Various systems for implementing the method and numerous applications and services are disclosed.

The invention discloses a real-time power angle measuring method of a generator. The method takes GPS or Beidou pulse per second as standard, and samples electricity at a generator end and a key pulse impulse signal with high density at equal intervals. Through performing corresponding anti-interference treatment on the collected signal, high-precision synchronous phasor quantity and key phase impulse position information can be acquired, thereby acquiring the high-precision real-time power angle of the generator. The method has the advantages of being easy to perform anti-interference treatment on the signal; the method is strong in diversified impulse signal adaptation and high in power angle measuring precision.

The invention discloses a method for desulfurizing low-concentration flue gas from hydropower silicon smelting. The method includes the following steps: 1) preparation of absorption slurry: thoroughly mix the desulfurization adsorbent ground to 325-400 mesh with water to obtain the absorption slurry; 2) Absorption of acid gas: When the flue gas from hydropower silicon smelting enters the desulfurization system, the absorption slurry and the flue gas are fully contacted in the desulfurization tower, so that the acid gas and particles in the flue gas are absorbed by the absorption slurry; 3) Flue gas Emissions: detection of outlet SO 2 If the emission concentration meets the requirements, it can be discharged, and if it does not meet the requirements, it can be returned to the desulfurization system for treatment, and the absorbed absorption slurry is filtered, and the filtrate is returned to step (2) as the absorption liquid, and the filter residue is sold as a by-product. The present invention uses limestone and other desulfurization adsorbents mixed with water to make absorption slurry, and the flue gas enters the desulfurization system and fully contacts with the slurry to remove acid gas and particulate matter, so that the emission concentration of sulfur dioxide in the flue gas is reduced to 80mg / Nm 3 Below, effectively realize green and environment-friendly production.