38results about How to "Offset negative effects" patented technology

A method and system are disclosed for ejecting ink drops from a plurality of ink jet nozzles in order to print on an envelope in a mail piece production process. The envelope has been stuffed and is therefore not flat, especially near the edges. Mail piece composition data is obtained and stored for the mail piece, and based upon that composition data a nozzle delay pattern is determined. For each ink jet nozzle, ink is ejected in accordance with the delay pattern so as to contact a point of the envelope's surface at the same time as drops from other ink jet nozzles.

The present invention relates to human milk fortifiers comprising high protein content and long chain poly-unsaturated fatty acids. Use of such human milk fortifier improves the body adipose tissue distribution by increasing the subcutaneous adipose tissue mass, while at the same time not increasing visceral adipose tissue.

The invention discloses a combustion system of a vortex-type diesel engine. The system comprises a main combustion chamber and a vortex chamber; the main combustion chamber is positioned between an air cylinder cover and the top surface of a piston; an embedded lump of the vortex chamber is provided with a vortex channel which communicates the vortex chamber and the main combustion chamber; the side close to the center of the vortex chamber, of the cross section of the vortex channel which is vertical to the gas circulation direction is a straight line, while the side close to the wall of thevortex wall of the cross section of the vortex channel which is vertical to the gas circulation direction is an arc line; the straight line side and the arc line side smoothly transit through an externally-arch circular arc line; and the area of the cross section of the vortex channel in the gas circulation direction is not changed, and the length-width ratio D / C of the cross section is 2.75-2.85. The structure form of the vortex chamber of the combustion system enables the vortex strength in the whole vortex chamber is relatively uniform, the oil ejected by a fuel injector has enough time tobe mixed with the vortex gas, more uniform mixed gas is obtained, the combustion efficiency is improved, the economic property is improved, the emission is reduced, the starting capability is lowered, and the reliability of the fuel injector is also improved.

The invention relates to a photovoltaic tile system, which comprises a color steel tile, an alloy frame, two photovoltaic tiles, two supporting frames and a sealing assembly, wherein a ridge frame isformed on the color steel tiles, the alloy frame is supported at the top of the ridge frame, clamping grooves are formed in the two opposite sides of the alloy frame respectively, the edges of the twophotovoltaic tiles are inserted and fixed into the two clamping grooves respectively, and the two supporting frames are installed on the two opposite sides of the ridge frame respectively. The service life of the photovoltaic tile system is not easily affected by screw corrosion.

The invention discloses a cascaded GHZ state code based quantum gate construction method of logic quantum bits. The method comprises the steps that coded logic quantum bits based on cascaded GHZ statecodes serve as input, each coded logic quantum bit is formed by multiplying N cascaded logic quantum bits represented in the GHZ state, and each logic quantum bit represented in the GHZ state is formed by m physical quantum bits; a quantum bit gate composed of a bit flipping gate, a phase flipping gate and a control NOT gate is constructed, and bit flipping, phase flipping and control NOT operation are carried out on each input coded logic quantum bit; and coded logic quantum bits after different operations are obtained in the output end. Via the method of the invention, operations related tothe cascaded GHZ state code based coded logic quantum bits can be realized, the method is realized via basic logic gates, the method has an anti-interference capability as to certain error models, and negative influence caused by photon loss can be offset to certain extent.

The invention discloses a three-dimensional sucker. The three-dimensional sucker comprises a sucker body, wherein a cavity with a round cross section is arranged in the sucker body and is provided with a sealed end surface and an opening end surface, a tangential spraying nozzle connected with a compressed air source is arranged on a wall surface of the cavity, a big-end-down hollow circular truncated cone is arranged on the opening end surface of the cavity, and the upper end opening of the hollow circular truncated cone and the opening of the opening end surface of the cavity coincide; a spiral groove is formed in the inner side surface of the hollow circular truncated cone and forms a fixed exhaust passage, and the spiral groove is communicated with the internal cavity and the peripheral environment. The three-dimensional sucker can adsorb a three-dimensional object, and the spiral groove suppresses influences of an irregular shape of the surface of the object on air exhausting. Meanwhile, when the air is exhausted along the spiral groove, the circumferential speed component can be kept to the maximum extent.

The invention discloses a DDoS real-time defense system based on DPDK. The system includes modules such as fast forwarding path, machine learning rule table, fast forwarding table, priority queue scheduling, flow monitoring and the like. The present invention targets unknown complex attacks through the DPDK-based data forwarding plane, provides priority to the victim with mission-critical preferred traffic, and efficiently forwards data packets; secondly, the present invention implements machine learning matching rules and uses flexible scheduling methods for traffic management to offset machine attacks. Negative effects caused by learning model defects. The system has the advantages of deployability, high efficiency, and fault tolerance. It can realize data-driven traffic classification based on machine learning rules, thereby defending against DDoS attacks in real time, achieving efficient intra-network forwarding, and improving the benign traffic forwarding rate. .

The invention discloses a stripping solution for removing a nickel layer on a copper surface, which is obtained by uniformly mixing the following raw materials in parts by weight: 15-35 parts of sodium bromide, 6-10 parts of oxidizing agent, 5-10 parts of tartaric acid, urea 0.5-1 part, 0.2-0.5 part of benzotriazole, 0.1-0.3 part of cobalt acetate, and 40-60 parts of water; the oxidizing agent is 30wt% hydrogen peroxide aqueous solution, manganese dioxide, and sodium perbromate according to the mass ratio 10~20:3~5:1 mixture. The deplating solution of the invention has high deplating efficiency for the nickel layer and does not cause corrosion to the copper substrate, and has important practical application value.

The invention belongs to the technical field of closed-loop control of inertial MEMS sensors, and relates to a structure of a silicon micro-gyroscope Sigma Delta detection closed-loop control system and a parameter setting method. The invention establishes the open-loop loop transfer function of Sigma Delta by determining the zero, pole and open-loop gain of the quantization noise transfer function; and then embeds a lead-lag compensator in the Sigma Delta loop, so that the pole of the compensator is equal to the meter head The zero point of the module realizes the zero-pole cancellation; the pole of the compensator is equal to the real zero point of the open-loop transfer function; other control parameters of the Sigma Delta are determined by the undetermined coefficient method, thus realizing the closed-loop control system of the silicon micro-gyroscope Sigma Delta detection Structural design and parameter setting. By adding a lead-lag compensator in the loop structure, the invention cancels the negative influence of the zero point of the header on the quantization noise shaping of the modulator by means of zero-pole cancellation, and ensures the detection of high signal-to-noise ratio of the angular rate signal. At the same time, the pure digital output of the silicon micro-gyroscope is realized.

The invention discloses a preparation method for a super-tough rigid polyvinyl chloride pipe mixing material. The method comprises the following steps: adding 100 parts by weight of polyvinyl chloride, 4-10 parts by weight of an acrylonitrile-butadiene-styrene terpolymer, 1-2 parts by weight of methyl methacrylate, 0.2-0.5 part by weight of sodium dodecyl sulfate and 200 parts by weight of water into a reactor with cooling water and nitrogen gas inlets and outlets, introducing a nitrogen gas for 10 min, starting an ultrasonic generator, performing ultrasonic treatment for 20-30 min, wherein reaction temperature is 20-30 DEG C, after the reaction is completed, performing filtration, and performing drying; and adding the dried material into a high-speed mixing machine, adding 10-20 parts ofnano calcium carbonate, 1-3 parts by weight of a stabilizer, 1-3 parts by weight of an acrylate processing auxiliary agent, 1-3 parts by weight of an internal lubricant and 0.3-1 part by weight of anexternal lubricant in sequence, performing mixing, when temperature is 110-120 DEG C, discharging a material, and performing cooling to obtain the super-tough rigid polyvinyl chloride pipe mixing material. The mixing material disclosed by the invention can be used for extruding a rigid polyvinyl chloride pipe with high toughness, low costs, excellent comprehensive mechanical properties, and good heat resistance and weather resistance.

The invention proposes an electromagnetic actuator (30) which drives an armature (33) by means of electromagnetic force. The electromagnetic actuator includes a stator (82), a coil (81) and an insulator (84). The stator (82) is made of magnetic material and has a cylindrical portion. Coils (81) are provided outside the stator. The coil (81) generates a magnetic field when energized. The insulator (84) is provided in a specific area of ​​the stator (82) radially facing the coil (81). The insulator (84) extends circumferentially partially along the stator (82) and inhibits current from flowing circumferentially through the stator (82). The stator (82) is integrally formed continuously in the circumferential direction from magnetic material.

The invention discloses a method for suppressing the peak-to-average ratio of orthogonal frequency division multiplexing (OFDM) signals. The method includes the following steps that: (1) inputted serial data signals are converted into parallel signals at a signal transmitting end, so that a parallel signal sequence can be obtained; (2) the obtained parallel signal sequence is multiplied by a constructed precoding matrix, so that a peak-to-average ratio-suppressed precoded signals can be obtained; (3) a cyclic prefix is added to the precoded signals, companding processing is performed through using a segmented exponential companding function, so that the peak-to-average ratio of the companded signals can be further suppressed; and (4) parallel-to-serial conversion is performed on the companded signal sequence at the signal transmitting end, so that orthogonal frequency division multiplexing (OFDM) transmission signals can be obtained. The method of the invention is low in complexity, can significantly reduce the signal-to-average ratio of the signals without decreasing the bit error rate of the received signals, and can improve the performance of a communication system.

The invention provides an electric vehicle short magnetic circuit rare earth-free permanent magnet motor, and belongs to the technical field of automobile motors. the motor comprises a convex lens-shaped iron core, a non-magnetically conductive rotor iron core, a stator iron core, an excitation winding, an armature winding, a screw, a tablet and a shaft, wherein the stator iron core has 12 statorpoles of equal width on the inner side thereof; The non-magnetic conductive rotor core is located on the inner side of the stator core and fixed on the shaft; The non-permeable rotor core has seven circular arc grooves. A convex lens-shaped iron core capable of conducting magnetic field is embedded in the circular arc-shaped groove, and the excitation winding and the armature winding are all centralized short-moment windings; an excitation winding is wound on every other stator pole of the stator iron core, and the armature winding is wound on the other stator poles. The technology of the invention is a short magnetic circuit motor, and the iron loss is small under the same magnetic density; the rare earth permanent magnet material is not used to save rare earth resources.