156results about How to "Same characteristics" patented technology

The invention discloses a four wheel independent steering electric car steering control method and a four wheel independent steering electric car steering control system, and solves the technical problem that a four wheel independent driving and four wheel independent steering electric car is lack of a stable and affordable steering strategy in the prior art. The four wheel independent steering electric car steering control method includes: when an electric car needs to swerve, obtaining a steering wheel turning angle and car speed of the electric car; based on a car speed and car speed transmission ratio mathematic model, obtaining a variable transmission ratio between the steering wheel angle and a rear wheel turning angle of the electric car at different car speeds; obtaining a front wheel turning angle of the electric car based on the steering wheel turning angle; obtaining a car ideal condition of the electric car based on a variable transmission ratio car ideal model, the car speed and the front wheel turning angle; simultaneously, obtaining a car virtual condition of the electric car based on a four wheel steering electric car linear two freedom model, the car speed and the front wheel turning angle; obtaining the rear wheel turning angle of the electric car based on the car ideal condition and the car virtual condition of the electric car, and controlling the electric car to swerve based on the front wheel turning angle and the rear wheel turning angle of the electric car.

An ink-jet head comprises a passage unit with pressure chambers formed therein, and actuator units for changing the volume of each pressure chamber. In the passage unit, a plurality of cavity recesses each communicating with both a nozzle for ejecting ink and a common ink chamber and each constituting a cavity of the pressure chamber are arranged in a matrix. Further in the passage unit, formed are a plurality of peripheral recesses arranged along a whole periphery of the cavity recesses. The actuator unit closes openings of the cavity recesses to define a plurality of pressure chambers with the passage unit, and changes the volume of each pressure chamber.

The invention discloses an image reconstruction model training method, an image reconstruction method, equipment and a medium. The method comprises the following steps: acquiring an original high-resolution image and an original low-resolution image; inputting the original low-resolution image into a first generation network for image super-resolution reconstruction to obtain a pseudo high-resolution image; inputting the original high-resolution image and the pseudo high-resolution image into a first discrimination network for discrimination, and obtaining a first discrimination result; inputting the original high-resolution image and the pseudo high-resolution image into a perception loss network to obtain a perception loss value; and based on the perception loss value and the first discrimination result, updating model parameters of the first generation network and the first discrimination network, and obtaining a target generation network based on super-resolution reconstruction. The target generation network can reconstruct images with high resolution and containing texture features and structural features of different scales, and has high perception quality.

The invention provides a hardware real-time simulation multi-channel multi-type communication protocol chip system and method and a medium, and the system comprises a system interaction module which is used for completing the connection with a tested system and monitoring the control instruction of the tested system in real time; A PL logic module in the FPGA which is used for finishing hardware acceleration of the protocol chip; An ARM1 module in the FPGA which is used for realizing a multi-protocol chip function; The FPGA internal ARM0 module which is used for realizing interaction with an upper computer and realizing multi-protocol chip control and data interaction; And the upper computer software platform module which is used for realizing function customization of a multi-protocol chip and real-time data monitoring and control of an analog chip. A user can carry out customized simulation according to different chip manuals, control over information such as a chip register is completed through C codes, customized updating is completed through a system software platform, and convenience and flexibility are achieved.

The invention discloses a high-performance water-cooled microwave ablation antenna, comprising a radiation head, a medium pipe, a semi-rigid coaxial electric cable, a needle rod, and a metal outer guide bush sleeved on the tail part of the medium pipe, wherein the semi-rigid coaxial electric cable penetrates through the axis hole of the metal outer guide bush and then is connected with the radiation head, the front end of the metal outer guide bush is sleeved on the medium pipe, the front end of the needle rod is sleeved on the excircle of the tail part of the outer guide bush, and the outer guide bush is in ohmic contact with the outer conductor of the semi-rigid coaxial electric cable and the needle rod. According to the high-performance water-cooled microwave ablation antenna disclosed by the invention, the needle rod and the medium pipe are connected together through the metal outer guide bush, the outer guide bush is in ohmic contact with the outer conductor of the semi-rigid coaxial electric cable and the needle rod, so that the structure precision of the microwave ablation antenna is improved, the boundary condition of the spatial electromagnetic field source of the antenna is not instable and unknown any more, and therefore, the performance and the main property parameters of the ablation antenna tend to be consistent and have certainty, so that the stability, efficiency and reliability of the ablation antenna are further improved.

The invention discloses a photovoltaic power station mathematical modeling method for transient/dynamic analysis of a power system. In the method, modeling can be carried out by simplifying a way of aphotovoltaic power station mathematical mode for the transient/dynamic analysis of the power system, and the dynamic output characteristics can be replaced by the accurately expressed static output characteristics of the photovoltaic power station. The established mathematical model has high reliability in simulation calculation and is convenient for use.

A method and apparatus for feeding a polyurethane mixture suitable to form a thermally insulating layer inside hollow bodies, such as hollow walls of a refrigerator cabinet, freezer, display counter or insulating panel. A polyurethane mixture resulting from chemically reactive components, supplied by a high-pressure mixing device, is injected into a cavity of a hollow body extending in a horizontal plain. The mixture is injected at a first flow-rate and a first injection speed, to be poured into a first deposition zone farthest from the injection point. Subsequently, the flow-rate and the injection speed of the polyurethane mixture are gradually reduced in a controlled manner, to be poured in successive deposition zones towards the injection point of the polyurethane mixture, along a distribution strip, allowing the injected mixture to spread out throughout the cavity of the hollow body along isometric expansion lines.

An extract of an oak aged alcoholic product is produced by adding a food grade solvent, such as ethyl acetate, to the oak aged alcoholic product and mixing the two liquids. The resulting mixture is allowed to separate into two layers, a first layer and a second layer. The first layer, including the food grade solvent, flavors, color, alcohol (i.e., ethanol) and water, is separated from the second layer. The solvent is then removed from the first layer to produce the extract. The extract can be added to a less costly alcoholic beverage, such as grain neutral spirits, or sugar beet spirits, to produce a beverage having the taste of a mature oak aged alcoholic beverage. Also disclosed is an accelerated whisky maturation method, including combining an alcoholic distillate with toasted oak chips, heating and aerating and/or oxygenating the resulting mixture to produce an accelerated oak aged alcoholic product. The toasted oak chips are then removed.

A vehicle mounted mechanism with eight wheel torsion bar spring is prepared by hinge-jointing bottom end and top end of front shoch reducer separately to middle end of front suspension bar and vehicle body sidewall, bottom end and top end of back shoch reducer to middle end of back suspension bar and vehicle body sidewall; firm jointing front torsion bar spring to vehicle body sidewall, back suspension bar top end to back torsion bar spring being firm-jointed with vehicle body sidewall.

The invention discloses a microwave and millimeter-wave modular power divider/combiner, which comprises a first waveguide, a second waveguide and an amplifier module. The first waveguide is coupled with a first transitional waveguide through a first coupling slot. One end of the first transitional waveguide is connected with one end of the amplifier module. The second waveguide is coupled with a second transitional waveguide through a second coupling slot. One end of the second transitional waveguide is connected with the other end of the amplifier module. One end of the first waveguide is a first input port, and the other end of the first waveguide is a first input short-circuit plane. One end of the second waveguide is a first output port, and the other end of the second waveguide is a first output short-circuit plane. The other end of the first transitional waveguide is a first short-circuit plane, and the other end of the second transitional waveguide is a second short-circuit plane. By the divider/combiner, high-power microwave and millimeter-wave signals can be output; the divider/combiner is high in space utilization rate and convenient to debug, and has a regular structural shape; the combination of any path number is realized in a modular way; and the shortcomings of difficulty in debugging, low expansibility and the like of the conventional microwave and millimeter-wave power division/combination network are overcome.

The invention discloses a finite element method for precisely simulating transmission line waving through an ANSYS software. According to the finite element method, beam elements with a bending freedom degree under condensed local coordinates are adopted to simulate sub-wires of a transmission line assisted with the characteristic that stress mentoring guarantee cables only have tension; meanwhile, multiple connection modes of the sub-wires and spacers are considered, three-component aerodynamic parameters of all the sub-wires under a full-blast attack angle are precisely acquired through an icing split gas aerodynamic characteristics wind tunnel test, and then an APDL is compiled to directly load aerodynamic loads relevant to motion states; and last, precise waving simulation is realizedthrough nonlinear iteration solving. Through the finite element method, an icing multi-split transmission line waving phenomenon can be precisely reproduced, the application range is wide, and complicated anti-waving measures can be taken based on the simulation method.

The invention provides an airbag-like grinding head for polishing an extra-large-deviation-degree aspheric surface and relates to the technical field of optical cold machining. The problem that a polishing grinding head existing in the prior art is not matched with the surface of a millimeter-magnitude extra-large-deviation-degree aspheric surface workpiece is solved. The airbag-like grinding head comprises a polishing die, a polishing airbag cap, a special elastic material, an airbag framework, a grinding head base, a height adjusting plate, a height adjusting screw, a fastening bolt and a connecting flange. The polishing die is glued to the surface of a polishing airbag and sealed in a closed structure formed by the polishing airbag cap, the airbag framework and the height adjusting plate. The polishing airbag cap is fixedly connected with a trapezoidal sunken part on the outer wall of the airbag framework through a circle of trapezoidal protrusion on the inner wall. The height adjusting plate adjusts height through a jackscrew. The grinding head base and the airbag framework are connected in a fastened mode through an external thread. The grinding head base and the connecting flange are connected in a fastened mode through the fastening bolt. Through elastic deformation of the special elastic material, the airbag-like grinding head is automatically matched with the aspheric surface, machining precision is improved, and high-precision machining of the surface shape of the aspheric surface is achieved.

A rotor blade having a suction side and a pressure side for a wind power installation, comprising: a rotor blade root of a hub region for the attachment of the rotor blade to a rotor hub, and a rotor blade tip arranged toward that side of a tip region which is averted from the rotor blade root. In the region of the hub region, the rotor blade has, at least in part, a thickness profile which has a thorn-like extension at its trailing edge, wherein, in the region of the hub region, the thickness profile has, at least in part, a first thorn-like extension at the trailing edge at the suction side, and a second thorn-like extension at the trailing edge at the pressure side, and, in the region of the hub region, the thickness profile has, at least in part, a flow stabilizer and/or a vortex generator on the suction and/or pressure side.

A speaker includes a magnet, a yoke, and a coil. A surface of the magnet opposed to the yoke includes a first magnetized surface at one side in the moving direction of the coil and a second magnetized surface at the other side in the moving direction of the coil. The two magnetized surfaces have the same magnetic polarity. A central surface between the first magnetized surface and the second magnetized surface is not magnetized or is magnetized more weakly than the first magnetized surface and the second magnetized surface. The single magnet of this structure forms the same magnetic force distribution as two separate magnets so that the speaker provides a superior linearity of driving force of the coil.

A digital glaze for high grammage, without the use of anti-settling agents, referred to as digital glazes for digital inkjet printing techniques to apply high grammage, maintaining the same aesthetic and technical characteristics obtained with traditional glazes and non-digital application techniques. No anti-settling agents are used in the composition to prevent the digital glaze from being thixotropic and creating problems in the inkjet printing. The composition includes at least one medium that is liquid at ambient temperature, formed by a mixture of water and polar solvents and/or solvents of medium to low polarity, having a percentage by weight of between 20 and 70% of the total weight of the digital glaze; and at least one mixture of ceramic raw materials and/or frits as a glaze-forming material, having a percentage by weight of between 30 and 80% of the total weight of the digital glaze.

Shaped chewing gum products are made by mixing gum base, bulk sweetener syrup, powdered bulk sweetener and soluble protein together to form a heated composition and molding that composition into desired shapes. The molding may be accomplished by making multiple depressions in a bed of powder material, each depression having a desired shape; depositing the heated composition into the depressions at a temperature at which the heated composition will fill into the shapes of the depressions; allowing the heated composition to set up to a consistency wherein the composition maintains the shape of the depression to form the shaped chewing gum products; and separating the shaped chewing gum products from the powder material.

A solid immersion lens includes a spherical part being hemispherical on the side opposite to an object and an anti-reflection coating provided at least in an incidence range of incident light on the hemispherical spherical part.

The invention provides a field effect tube microwave amplifier power circuit, the electric circuit uses closed loop operational amplifier U3A, U4A and U3B, U4B, the U3B synchronism input end, which obtains by the resistance differential pressure, its opposition input end delivers to the U4A synchronism input end after through the resistance, the U4A output leaks after the resistance R6 connects to the field effect tube drain electrode, as drain electrode voltage; the U3A synchronism input end also obtains by the resistance differential pressure, its output delivers to the U4B opposition input end after through the resistance, the U4B output, after the isolating diode and connect the field effect tube grid, as grid voltage. The invention advantage is, the closed loop electric current controlled FET DC biasing circuit separately through certain resistance value set the drain electrode voltage and current, enables different FET to obtain same drain electrode voltage and current under the same biaing circuit, thus guarantees the consistent characteristic when the FET works.

The invention discloses a one-chip triaxial micro mechanical accelerometer which comprises an upper cover, a lower cover and a plurality of sensitive mass block components with a movable capacitance polar plate, and the upper cover and the lower cover are connected into one body. The sensitive mass block components are arranged between the upper cover and the lower cover with a central symmetry structure. Both the upper cover and the lower cover are provided with a plurality of fixed capacitance plates. Fixed capacitance plates of the upper cover and fixed capacitance plates of the lower plates are in one-to-one correspondence and are arranged oppositely. The sensitive mass block components are provided between an upper fixed capacitance plate and a lower fixed capacitance plate to form aplurality of differential capacitors. The one-chip triaxial micro mechanical accelerometer has the advantages of good linearity and sensitivity in a small measuring range scope, simple processing technology, good repeatability, high sensitivity and low cost.

The invention discloses a battery management and control system for an underwater vehicle. The battery management and control system comprises a main control unit, a plurality of battery blocks and charge circuits, wherein the plurality of battery blocks are sequentially connected with one another in series; each battery block comprises a management control unit; each management control unit comprises a sampling circuit, a short circuit protection circuit, a temperature detection circuit, a battery balance circuit, an over-charge and over-discharge protection circuit, an anti-backflow circuit and a voltage collection circuit; and the charge circuit, the sampling circuit, the temperature detection circuit and the voltage collection circuit in each management control unit all are connected with the main control unit. In the process that an autonomous underwater vehicle enters a docking station for charging, parameters of a voltage, a current, a temperature and the like of a battery are transmitted to the main control unit; the main control unit transmits the parameters to the docking station through a wifi signal; the docking station transmits a feedback signal to a shore-based upper computer for carrying out monitoring and operation. The system disclosed by the invention carries out secondary protection on the battery, and is safe and reliable; normal use of equipment in the underwater vehicle is ensured; and the lifetime of the battery can be prolonged.

A semiconductor memory device includes a data input driver and a data output driver for receiving an external power supply voltage, and for inputting and outputting data, respectively; and a voltage detector for detecting the external power supply voltage to generate a detection signal, wherein a drive current of each of the data input driver and the data output driver is controlled by the detection signal.

A removable coupling device (50) for coupling together two flexible pipes (11, 21) of two tanks (10, 20), and also provides a fuel storage system. Said removable coupling device (50) comprises two connector seats (51, 52), each connector seat (51, 52) being secured to a respective flexible pipe (11, 21) by adhesive bonding. Said connector seats (51, 52) are rigid and are assembled mechanically together via at least one screw (54). The sealing between said connector seats (51, 52) is provided by a gasket (53).